TK 790_(B)_H(B) (REV) (K,K2) TK790

User Manual: TK790

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Page Count: 95

CONTENTS
GENERAL
SYSTEM SET-UP
OPERATING FEATURES
INSTALLATION
DISASSEMBLY FOR REPAIR
CIRCUIT DESCRIPTION
SEMICONDUCTOR DATA
DESCRIPTION OF COMPONENTS
PARTS LIST
EXPLODED VIEW
PACKING
ADJUSTMENT
TERMINAL FUNCTION
WIRING
PC BOARD VIEWS / CIRCUIT DIAGRAMS
BLOCK DIAGRAM
SPECIFICATIONS

B51-8438-10 (N) 1234

VHF FM TRANSCEIVER

TK-790/(B)

TK-790H(B)

SERVICE MANUAL

Cabinet (Upper)

(A01-2161-02)

Cabinet (Upper)

(A01-2163-01)

Panel assy

(A62-0606-13)

Panel assy

(A62-0607-13)

Cabinet (Lower)

(A01-2164-01)

Knob

(K29-4664-04) x 2

Cabinet (Lower)

(A01-2162-02)

Knob

(K29-4664-04) x 2

TK-790 or TK-790(B) with KCH-10

KCH-11

TK-790H(B)

This service manual applies to products with 30300001 or subsequent serial numbers. (KCH-10 and KCH-11 are applicable to

the productions June 2001 and after.)

In terms of the products with the serial numbers earier than 30300001, refer to the TK-790/(B)/H(B) service manual as per

part No. B51-8438-00 and the TK-790(B) service manual as per part No. B51-8456-00.

REVISED

TK-790/(B)/H(B)

CONTENTS / GENERAL

GENERAL ......................................................................................................................... 2

SYSTEM SET-UP ............................................................................................................. 4

OPERATING FEATURES ................................................................................................. 5

INSTALLATION.............................................................................................................. 16

DISASSEMBLY FOR REPAIR ......................................................................................... 22

CIRCUIT DESCRIPTION ................................................................................................. 26

SEMICONDUCTOR DATA ............................................................................................. 32

DESCRIPTION OF COMPONENTS ............................................................................... 36

PARTS LIST .................................................................................................................... 39

EXPLODED VIEW .......................................................................................................... 57

PACKING ........................................................................................................................ 61

ADJUSTMENT ............................................................................................................... 65

TERMINAL FUNCTION ................................................................................................. 74

WIRING .......................................................................................................................... 77

PC BOARD VIEWS / CIRCUIT DIAGRAMS

DISPLAY UNIT (X54-3190-20) : KCH-10 .................................................................. 79

DISPLAY UNIT (X54-3200-20) : KCH-11 .................................................................. 81

CONTROL UNIT (X57-5610-XX) (B/3) ..................................................................... 87

FINAL UNIT (X57-5610-XX) (C/3) : TK-790/(B) ....................................................... 97

TX-RX UNIT (X57-5610-XX) (A/3) ......................................................................... 101

FINAL UNIT (X45-3560-10) : TK-790H(B) .............................................................. 113

BLOCK DIAGRAM ........................................................................................................ 117

SPECIFICATIONS ......................................................................................................... 119

GENERAL

INTRODUCTION

SCOPE OF THIS MANUAL

This manual is intended for use by experienced techni-

cians familiar with similar types of commercial grade com-

munications equipment. It contains all required service in-

formation for the equipment and is current as of this publica-

tion date. Changes which may occur after publication are

covered by either Service Bulletins or Manual Revisions,

which are issued as required.

ORDERING REPLACEMENT PARTS

When ordering replacement parts or equipment informa-

tion, the full part identification number should be included.

This applies to all parts : components, kits, and chassis. If

the part number is not known, include the chassis or kit

number of which it is a part and a sufficient description of

the required component, for proper identification.

PERSONNEL SAFETY

The following precautions are recommended for person-

nel safety :

• DO NOT transmit if someone is within two feet (0.6

meter) of the antenna.

• DO NOT transmit until all RF connectors are secure and

any open connectors are properly terminated.

• SHUT OFF this equipment when near electrical blasting

caps or while in an explosive atmosphere.

• All equipment should be properly grounded before

power-up for safe operation.

• This equipment should be serviced by only qualified tech-

nicians.

TK-790/(B)/H(B)

PRE-INSTALLATION CONSIDERATIONS

1. UNPACKING

Unpack the radio from its shipping container and check

for accessory items. If any item is missing, please contact

KENWOOD immediately.

2. LICENSING REQUIREMENTS

Federal regulations require a station license for each ra-

dio installation (mobile or base) be obtained by the equip-

ment owner. The licensee is responsible for ensuring trans-

mitter power, frequency, and deviation are within the limits

permitted by the station license.

Transmitter adjustments may be performed only by a li-

censed technician holding an FCC first, second or general

class commercial radiotelephone operator’s license. There

is no license required to install or operate the radio.

3. PRE-INSTALLATION CHECKOUT

3-1. Introduction

Each radio is adjusted and tested before shipment. How-

ever, it is recommended that receiver and transmitter opera-

tion be checked for proper operation before installation.

3-2. Testing

The radio should be tested complete with all cabling and

accessories as they will be connected in the final installa-

tion. Transmitter frequency, deviation, and power output

should be checked, as should receiver sensitivity, squelch

operation, and audio output. QT equipment operation

should be verified.

4. PLANNING THE INSTALLATION

4-1. General

Inspect the vehicle and determine how and where the

radio antenna and accessories will be mounted.

Plan cable runs for protection against pinching or crush-

ing wiring, and radio installation to prevent overheating.

4-2. Antenna

The favored location for an antenna is in the center of a

large, flat conductive area, usually at the roof center. The

trunk lid is preferred, bond the trunk lid and vehicle chassis

using ground straps to ensure the lid is at chassis ground.

4-3. Radio

The universal mount bracket allows the radio to be

mounted in a variety of ways. Be sure the mounting surface

is adequate to support the radio’s weight. Allow sufficient

space around the radio for air cooling. Position the radio

close enough to the vehicle operator to permit easy access

to the controls when driving.

4-4. DC Power and wiring

1. This radio may be installed in negative ground electrical

systems only. Reverse polarity will cause the cable fuse

to blow. Check the vehicle ground polarity before installa-

tion to prevent wasted time and effort.

2. Connect the positive power lead directly to the vehicle

battery positive terminal. Connecting the Positive lead to

any other positive voltage source in the vehicle is not rec-

ommended.

3. The cable provided with the radio is sufficient to handle

the maximum radio current demand. If the cable must be

extended, be sure the additional wire is sufficient for the

current to be carried and length of the added lead.

5. INSTALLATION PLANNING – CONTROL STATIONS

5-1. Antenna system

Control station. The antenna system selection depends

on many factors and is beyond the scope of this manual.

Your KENWOOD dealer can help you select an antenna sys-

tem that will best serve your particular needs.

5-2. Radio location

Select a convenient location for your control station radio

which is as close as practical to the antenna cable entry

point. Secondly, use your system’s power supply (which

supplies the voltage and current required for your system).

Make sure sufficient air can flow around the radio and

power supply to allow adequate cooling.

SERVICE

This radio is designed for easy servicing. Refer to the

schematic diagrams, printed circuit board views, and align-

ment procedures contained in this manual.

GENERAL

TK-790/(B)/H(B)

Before Reading About System Set-up

The TK-790(B)/H(B) is a transceiver main unit (without a

panel or speaker) that you complete by adding options.

The options are classified into three types according to

operation and function.

1. Install the front panel kit (controller) directly on a radio to

operate it. (Form : Radio + KCH-10/11)

2. Remotely control one radio with one controller. (Form

: Radio + KRK-5 + KCH-10/11 + KCT-22M/M2/M3)

SYSTEM SET-UP

*Service manual parts No. list

Model Parts No.

KRK-5/6DH B51-8445-00

KRK-7DB/8DBH B51-8452-00

Merchandise received

License and frequency allocated by FCC

Choose the type of transceiver

TK-790/(B), TK-790H(B) (Radio 1)

TK-790(B) or TK-790H(B) is complete by combining

options with only the transceiver body (without panel)

Are you using the remote kit?

KCH-10 (Basic model)

Front panel kit

KCH-11 (Full featured

model) Front panel kit

Supplied accessory knob

Are you using one radio with two controllers?

Are you using one radio

with one controller?

Are you using two radios with one controller?

Are you using two radios with two controllers?

TK-790 : Contain (KCH-10)

Are you using the printed keytops?

KRK-5

Single control head kit

KRK-7DB

Dual band remote kit

KRK-6DH

Dual control head kit

KCH-10 KCH-11 KCH-10 KCH-11

KCH-10

KCH-11

or or

KCT-22M/M2/M3

Control cable

YES

*See Remote

kit service

manual

See

page 16 See page 16

See page 16

YES

KRK-8DBH

Dual band dual control head kit

KCH-10

KCH-11

or or

YES

Frequency range

148~174MHz

YES

*See Remote kit

service manual

Are you using the voice scrambler?

Transceiver programming (option)

Are you using the external speaker?

KCT-23 (DC cable)

Are you using the ignition sense cable?

Delivery

Modified of control unit

YES

KES-4 (EXT. SP)

YES

KCT-18

YES

See page 18

See page 17

See page 13

A personal computer (IBM PC or compatible), programming interface (KPG-43),

and programming software (KPG-44D) are required for programming.

(The frequency and signalling data are programmed for the transceiver.)

See Installation manual

KCT-23 M,M3 : TK-790/(B), KCT-23 M2,M4 : TK-790H(B)

RF power

45W

110W

TK-790/(B) F1

136~156MHz 45W TK-790(B) F2

TK-790H(B) F1

Type

3. Remotely control one radio with two controllers. (Form

: Radio + KRK-6DH + KCH-10/11 (two) + KCT-22M/M2/

M3 (two))

4. Remotely control two radios with one controller. (Form

: Radios (two) + KRK-7DB + KCH-10/11 + KCT-22M/M2/

M3)

5. Remotely control two radios with two controllers. (Form

: Radio (two) + KRK-8DBH + KCH-10/11 (two) + KCT-

22M/M2/M3 (two))

TK-790/(B)/H(B)

1. Controls and Functions

1-1. Basic Function Panel

(1) POWER Switch

Press to turn the power ON and OFF.

(2) TX/BUSY Indicator

The TX Indicator (Red LED) shows that you are transmit-

ting.

The BUSY Indicator (Green LED) shows that the channel

is in use.

(3) Microphone Connector

(4) Volume Knob

To increase the volume level, turn clockwise (CW).

To decrease the volume level, turn counterclockwise

(CCW).

(5) UP/DOWN Knob

The function of this Knob can be programmed by the

FPU.

Function Description Note

Channel Channel selector. Default

UP/DOWN To increase the channel, turn CW. setting.

To decrease the channel, turn CCW.

Group Group selector.

UP/DOWN To increase the group, turn CW.

To decrease the group, turn CCW.

(6) GR UP Key, (7) GR DW Key, (8) MON Key, (9) SCN Key,

(10)~(18) PF1-9 Key

The function of these Keys can be programmed by the

FPU.

Function Description Note

[ ] : Key top name

No No function.

Default setting

Function of PF1~9.

Monitor If [MON] is pressed once while

Default setting

[MON]

the RADIO is waiting for reception,

of MON. (Full

all signalling* squelch is canceled.

function panel)

If [MON] is held down for 2 seconds,

all singalling;

noise squelch is canceled and the

QT/DQT &

audio is unmuted.

2 TONE/DTMF

Scan Start and stop the scanning

Default setting

[SCN] sequence. of SCN. (Full

function panel)

Public The RADIO works as a PUBLIC

Address [PA]

ADDRESS amplifier.

Horn Alert When the RADIO receives a

[HA] the optional signalling calls that

are assigned to the channel, the

HA relay turns on.

Talk Around

Use this function to communicate

[TA] with other operators directry,

without using a repeater.

Intercom

Use this function to communicate

Dual HEAD

[IC]

between the HEAD1 and HEAD2

configuration

operator without transmitting. only.

OPERATING FEATURES

GRP

VOL

POWER

BUSY

(1)

(2) (3) (4) (5) (10) (11) (12) (13) (14)

(19)(7)

(6)

(20)

(29)

(32) (30)

(31) (21) (22)(23)

(24)

(25)

(26)

(27)

(28)

1-2. Full Function Panel

GRP

POWER

VOL

BUSY

SCAN OPT OSTA B CMON

CALL

MON

SCN

(1)

(2) (3) (4) (5) (10) (11) (12) (13) (14)

(6) (7) (19) (9) (8)(17) (15) (16) (18)

SCAN OPT OSTA B CMON

CALL SP

(29) (31) (20) (21) (22) (23) (24) (25)

(26)

(27) (28)(30)

(32)

TK-790/(B)/H(B)

Function Description Note

[ ] : Key top name

Channel Switches the display between

Name [AN] Group-Channel No. and Group

channel name.

Speaker

Switch the audio output between

Internal/ Internal speaker and PA speaker.

External [SP]

Delete/ Changes the Scan DELETE/ADD

Press and hold

Add [D/A] setting of each channel or group.

[D/A] for more

than 2 seconds

to toggle a

Group DEL

and ADD.

Squelch

Press to enter Squelch Level Adjust

Level Mode. The Squelch level can be

[SQL]

adjusted by using the UP/DOWN

Knob, or the preprogrammed

channel Up/Down key or Group

Up/Down key.

Operator Select signalling from the pre-

Selectable programmed QT/DQT list.

Tone [OST]

Scrambler The optional board on and off. Install the

[OPT]

Scrambler board.

AUX A [AUXA]

Turns AUX A port on and off.

AUX B [AUXB]

Turns AUX B port on and off.

AUX C [AUXC]

Turns AUX C port on and off.

Home Channel

Switches to the pre-programmed

(Fixed) [HC]

Home Channel.

Home Channel

When pressed once, switches to

(Toggle) [HC]

the Home Channel. Press again

to returns to the previous channel.

CH1 Direct

Switches to the GR1-CH1 directry.

[CH1]

CH2 Direct

Switches to the GR1-CH2 directry.

[CH2]

CH3 Direct

Switches to the GR1-CH3 directry

[CH3]

CH4 Direct

Switches to the GR1-CH4 directry.

[CH4]

CH5 Direct

Switches to the GR1-CH5 directry.

[CH5]

Channel

When pressed once, switches to The [RCL] Key

Recall [RCL]

the last called channel. Press again

works in Scan

to return to the previous channel.

Mode only.

Dimmer

Use this function to adjust the LCD

[DIM]

backlight brightness, Key backlight,

TX/BUSY LED, and DTMF Mic Key

backlight ON/OFF.

Function Description Note

[ ] : Key top name

Speaker 1-2

Each speaker audio can be Dual HEAD

Mute [SPM]

manually disabled from the configuration

other control head. only.

Channel UP

If [ ] is pressed once, the channel

[ ] increases by one step.

If [ ] is held down for 1 second,

the channel increases continuously.

Channel

If [ ] is pressed once, the channel

DOWN

[ ] decreases by one step.

If [ ] is held down for 1 second,

the channel decreases continuously.

Group UP

If [ ] is pressed once, the group

[ ] increases by one step.

If [ ] is held down for 1 second,

the group increases continuously.

Group

If [ ] is pressed once, the group

DOWN

[ ] decreases by one step.

If [ ] is held down for 1 second,

the group decreases continuously.

Mobile Relay

The RADIO works as a repeater. Dual BAND

Station [RPT]

configuration

only.

Emergency To start an Emergency Call, This function

Call [EMG] press [EMG].

needs the ANI

board.

(19) LCD Display

Description Note

(20) CALL

Flashes when the RADIO is called

If Signalling

by proper Optional Signalling has been set

(DTMF or 2Tone).

“AND”, CALL

lights after

transmitting.

(21) MON Lights when [MON] is pressed.

Signalling squelch is disabled.

(22) SCN Indicates when scan mode is

enabled.

(23) SP Lights when “PA speaker” is

selected for audio output.

(24) OPT Lights when the optional board*, Optional

that is installed inside the RADIO,

Board :

is enabled. · Scrambler

(25) A Lights when [AUXA] is pressed.

The PF Port that is programmed

with “AUX A” is ON.

(26) B Lights when [AUXB] is pressed.

The PF Port that is programmed

with “AUX B” is ON.

OPERATING FEATURES

TK-790/(B)/H(B)

Description Note

(27) C Lights when [AUXC] is pressed.

The PF Port that is programmed

with “AUX C” is ON.

(28) OST Lights when [OST] is pressed,

Operator Selectable Tone is

enabled.

(29) ▼If the selected group is in the

(Group multi group scan sequence,

Add Status) the indicator appears at the

group.

(30) ▼If the selected channel is in the

(Channel scan sequence, the indicator

Add Status) appears at the channel.

(31) Displays the channel status.

• BASIC P1 : Lights when a PRIORITY 1

FUNCTION

channel is shown on the display.

PANEL 7 P2 : Lights when a PRIORITY 2

SEGMENT

channel is shown on the display.

display PP : Lights when a PRIORITY 1

• FULL

& 2 channel is shown on the display.

FUNCTION

HC : Lights when a Home

PANEL Channel is selected by [HC] key.

DOT TA : Lights when the RADIO is

MATRIX (S)

in Talk Around mode.

display RCL : Lights when recall

channel is selected by [RCL] key.

R1-R15 : Lights when remote

channel is selected by PF port.

(32) Displays the operating Group-

• BASIC

Channel number (Channel display),

FUNCTION

or name (Alphanumeric display)

PANEL 13

programmed by the FPU. Also

SEGMENT

displays the status of some

display features.

• FULL

FUNCTION

PANEL DOT

MATRIX (L)

display

1-3. Microphone

Press PTT (Push To Talk) to transmit, then speak into the

microphone.

2. Receive

(1) To turn on the RADIO:

Press the Power Switch. The display and graphics illumi-

nate to indicate the RADIO is ON.

(2) To adjust the volume level:

Turn the Volume Knob CW to increase the volume level.

Turn the Volume Knob CCW to decrease the volume

level.

(3) To select a Group:

Select a Group by rotating the UP/DOWN Knob which

has been programmed with “Group UP/DOWN” or by

pressing the Keys which have been programmed with

“Group UP” and “Group DOWN”.

If the “Channel Tracking Function” is enabled, the chan-

nel number will not change.

(4) To Select a Channel:

Select a Channel by rotaing the UP/DOWN Knob which

has been programmed with “Channel UP/DOWN” or by

pressing the keys which have been programmed with

“Channel UP” and “Channel DOWN”.

(5) To enter carrier squelch mode:

If you want to monitor a channel, press [MON] Key. If the

“OFF HOOK Decode” function has been disabled, you

can also enter monitor mode by taking the microphone

off HOOK.

3. Transmit

(1) Normal ON HOOK Scan Mode

First, lift the microphone from the HOOK. The scanning

stops temporarily and the OFF HOOK revert channel is

displayed. Listen for a few seconds to make certain the

channel is not being used.

OFF HOOK Scan MODE

If scanning, pressing the PTT switch will stop the RADIO

on the OFF HOOK revert channel and begin transmis-

sion immediately.

Not Scan Mode

Pressing PTT starts transmission at the selected channel.

(2) Press PTT and start speaking. For best results, hold the

microphone 1 to 1.5 inches from your mouth. Release

PTT when your message is complete. Listen for a re-

sponse.

(3) When your conversation is finished, replace the micro-

phone on its hook.

4. Scan Operation

4-1. General

There are two “Mic HOOK” scan modes in which the

RADIO can be programmed to operate.

• ON HOOK Scan

Normal method of scanning that requires the microphone

to be ON HOOK (hanged on the Mic Hanger) to initiate

scan.

• OFF HOOK Scan

The microphone does not have to be ON HOOK to initiate

scan or to scan channels.

OPERATING FEATURES

TK-790/(B)/H(B)

(1) The scan feature is initiated by pressing the [SCN] Key.

(2) A single confirmation tone sounds, and scanning starts. If

there is only one or no added channels, an error tone will

sound and scanning will not start.

(3) The display shows “SCN” icon, and “SCAN” or the OFF

HOOK Revert Channel Number (FPU setting).

(4) If the RADIO receives a proper signal while scanning,

scanning stops temporarily, audio is unmuted, and the

channel number or name is displayed.

If either “Priority1” or “Priority2” is programmed and

scanning stops at a Normal Channel by receiving a signal,

the RADIO watches for a signal on the Priority Channel

periodically. When a signal exists on the Priority Channel,

the channel will change from the Normal Channel to Pri-

ority Channel.

If both “Priority1” and “Priority2” are programmed and

scanning stops at the Priority2 Channel by receiving a sig-

nal, the RADIO watches a signal on the Priority1 Channel

periodically. When a signal exists on the Priority1 Chan-

nel, the channel will change from the Priority2 Channel to

the Priority1 Channel.

If there is no Priority Channel programmed, the scanning

stops at a channel and receives only that channel.

(5) If the [SCN] Key pressed again, Scan Mode ends at the

revert channel, and two confirmation tones sound.

4-2. To Delete Undesired Channels

To temporarily delete undesirable channels, press [D/A]

Key while the channel is displayed, and scanning resumes.

(To temporarily delete Priority Channel 1 or 2, set the “Prior-

ity Temporary D/A” function to “YES”.)

You can’t delete a channel in Scan Mode under the fol-

lowing conditions:

• Priority Scan

There is only channel beside the Priority Channel in the

scan sequence.

• Non-priority Scan

There are only 2 channels in the scan sequence. To re-

store the original scan sequence, either turn scan off and

on or turn the RADIO off and on.

4-3. To Enter Carrier Squelch Scan While Scan is On

If you have pressed the [MON] Key, the MON indicator is

turned on and the RADIO operates in carrier squelch scan.

5. Adding Channels and Groups to the

Scan Sequence

(1) Channels

To add the currently displayed channel to the scan se-

quence, press [D/A] Key. The CH ADD indicator (▼)

lights, and the channel is added to the scan sequence.

(2) Groups

To add the currently displayed group of channels to the

scan sequence, hold down the [D/A] Key for 2 seconds.

The GR ADD indicator (▼) lights, and the group is added

to the scan sequence.

6. Deleting Channels and Groups from the

Scan Sequence

(1) Channels

To delete a channel from the scan sequence press [D/A]

Key. The CH ADD indicator (▼) goes off, and the channel

is deleted from the scan sequence.

(2) Groups

To delete the currently displayed group of channels from

the scan sequence, hold down [D/A] Key for 2 seconds.

The GR ADD indicator (▼) goes off, and all the channels

in the group are deleted from the multi group scan se-

quence.

7. Operator Selectable Priority

(1) Operator Selectable Priority1

If Priority1 has been set to “Operator Selectable”, you

can set the currently displayed channel as Priority1.

To set the currently displayed channel as Priority1, hold

down the [SCN] Key and press the [MON] Key three

times.

(2) Operator Selectable Priority2

If Priority2 has been set to “Operator Selectable” you

can set the currently displayed channel as Priority2.

To set the currently displayed channel as Priority2, hold

down the [SCN] Key and press the [MON] Key twice.

8. Talk Around (TA)

Talk Around is useful when you are close to other mo-

biles you want to talk to, or are outside the range of your

repeater system.

Press the [TA] Key. A confirmation tone sounds, and

“TA” (BASIC Panel : 7 segment, FULL Panel : DOT MATRIX

(S)) is displayed. You can communicate without using a re-

peater.

To use a repeater, press [TA] again. A confirmation tone

sounds, and “TA” goes off.

9. Horn Alert (HA)

If you are called from the base station using 2Tone/DTMF

while you are away from your transceiver, you will be

alerted by the vehicle horn or some other type of external

alert. To turn the horn alert function on, press the [HA] Key.

A confirmation tone sounds, and the display shows HORN

ALERT (or HA).

If [HA] is pressed again, the horn alert function is turned

off.

OPERATING FEATURES

TK-790/(B)/H(B)

10. Public Address (PA)

Public Address amplifies the microphone audio, and out-

puts it through a PA speaker. PA is activated by pressing the

[PA] Key. A confirmation tone sounds, and the display

shows PUBLIC ADDRESS (or PA). PA can be activated at

anytime (scanning or non-scanning).

The RADIO continues to scan & receive calls while in PA

mode. Pressing PTT activates PA, and will override an in-

coming call at anytime ; however, no RADIO transmission

takes place. If [PA] is pressed again, a confirmation tone will

sound, the display will return to the normal channel or

SCAN display, and the PA function will turn off.

11. Speaker Internal/External (SP)

SP amplifies the received audio from the RADIO and out-

puts it through a PA speaker. SP is activated by pressing the

[SP] Key. A confirmation tone sounds and the SP icon is dis-

played. SP can be activated at anytime (scanning or non-

scanning).

The RADIO transmits and operates normally while SP is

activated, but all received calls will be output through the PA

speaker. If [SP] is pressed again, a confirmation tone

sounds, the SP icon goes off and the SP function will turn

off.

12. Channel Name (AN)

This function switches the 13-segment display (BASIC

Panel) or DOT MATRIX (L) display (FULL Panel) between al-

phanumeric and Group-Channel number.

If you want to change from alphanumeric display to chan-

nel display, press [AN] Key. A confirmation tone sounds, and

the alphanumeric display changes to the channel display.

If [AN] is pressed again, a confirmation tone sounds, and

the channel display changes back to the alphanumeric dis-

play.

13. Intercom (IC) ; Dual Head Configuration only

Intercom (IC) allows one control head operator to talk to

the another control head operator. IC mode is activated by

pressing the [IC] Key. A confirmation tone sounds and

the display shows INTERCOM. IC can be activated at any-

time (scanning or non-scanning).

The RADIO continues to scan & receive calls while in IC

mode. Pressing PTT activates IC and will override an incom-

ing call at anytime ; however, no RADIO transmission takes

place. If [IC] is pressed again, a confirmation tone sounds,

the display returns to the normal channel or SCAN display,

and the IC function will turn off.

14. Home Channel (HC)

This feature allows the radio operator to immediately se-

lect a pre-determined “Home Channel” by pressing the [HC]

Key. HC can be activated as follows.

CASE1 : HC has been set as “HC (Fixed)”

Non-Scan Scanning Scan

Mode temporary

stopping

press [HC] once Change to Home Channel

press [HC] again No effect

CASE2 : HC has been set as “HC (Toggle)”

Non-Scan Scanning Scan

Mode temporary

stopping

press [HC] once Change to Home Channel

press [HC] again Return to Change to Return to

current channe

Revert Channel current channel

15. Squelch Level (SQL)

This function allows the radio operator to manually adjust

the squelch threshold in 16 steps (Level 0~15) via the front

panel controls. To adjust the squelch level:

(1) Press the [SQL] Key. A confirmation tone sounds, and

the RADIO enters Squelch Level Adjust Mode. In this

mode, all signallings are canceled and audio is unmuted.

The display shows SQUELCH XX (or SQL XX). (XX=

squelch level)

(2) Change the squelch level by pressing [ ] and [ ] Keys,

or rotating the UP/DOWN Knob.

(3) Press [SQL] again. A confirmation tone sounds, the dis-

play returns to the normal channel, the level setting is

memorized, and Squelch Level Adjust Mode will turn off.

* This feature can be initiated when the RADIO is not in

scanning mode.

16. Operator Selectable Tone (OST)

This function allows the radio operator to change the pre-

set decode QT/DQT, encode QT/DQT. You can select Dec/

Enc OFF or from up to 16 decode/encode pairs (Pair No.

1~16) programmed by the FPU. To select the Dec/Enc pairs:

(1) Press the [OST] Key. A confirmation tone sounds, and

the display shows the OST Name which is memorized in

the channel for 2 seconds. The “OST” icon lights, and

OST is enabled.

Press [OST] again, and the OST icon goes off and OST is

disabled.

(2) When the [OST] Key is held down, a confirmation tone

sounds and the RADIO enters OST Select Mode.

(3) Select the Dec/Enc pair by pressing the [ ] and [ ]

Keys, or rotating the UP/DOWN Knob. The display shows

TONE XX (XX=Dec/Enc pair number) or the OST Name.

(4) Press [OST] again, a confirmation tone sounds, the dis-

play returns to the normal channel, the pair is memorized

and OST Mode will turn off.

* You can select a Dec/Enc pair on each channel.

OPERATING FEATURES

TK-790/(B)/H(B)

17. Option Board (OPT)

If an optional Scrambler board has been installed in the

RADIO, Scrambler is activated by pressing the [OPT] Key. A

confirmation tone sounds, and the OPT icon is displayed. If

[OPT] is pressed again, a confirmation tone sounds, the OPT

icon goes off and the Scrambler will turn off.

If [OPT] is held down, the RADIO enters SCR Code Set

Mode. A confirmation tone sounds, and the display shows

CODE XX (XX=SCR Code). Change the SCR Code by press-

ing the [ ] and [ ] Keys, or rotating the UP/DOWN Knob.

Press [OPT] again, a confirmation tone sounds, the dis-

play returns to channel (SCR is ON), the SCR Code setting is

memorized, then SCR Code Set Mode will turn off.

18. AUX A, AUX B, AUX C

This function switches the accessory PF Output ports

which have been programmed with AUX A, AUX B and AUX

Press [AUXA] Key. A confirmation tone sounds, the A

icon is displayed, and the AUX A Port is switched on (Low

level). If [AUXA] is pressed again, a confirmation tone

sounds, the A icon goes off and the AUX A Port is switched

off (open collector).

In the same way, [AUXB] Key controls the AUX B Port,

and [AUXC] Key controls the AUX C Port.

19. Direct Channel Access

This feature allows the radio operator to immediately se-

lect CHANNELs 1~5 which are contained in GROUP 1. To

select GR1-CH1, press [CH1]. To select GR1-CH2~5, press

[CH2] ~ [CH5],

20. Channel Recall (RCL)

This feature is enabled in scan mode.

This feature allows the radio operator to immediately ac-

cess the last called (Unmuted) channel by pressing [RCL].

The 3-digit display shows “RCL”. Press [RCL] again, and the

radio returns to the previous channel.

21. Dimmer (DIM)

To adjust the brightness of the display backlight, TX/

BUSY LED, panel Keys backlight and microphone keys back-

light, press the [DIM] Key.

[DIM] controls the brightness at the same time as fol-

lows.

Display TX/BUSY Panel Keys Microphone

backlight LED backlight

Keys backlight

Default High High High High

Press [DIM]

Medium ↓↓↓

once

Press again

Low ↓↓↓

Press again

OFF OFF OFF OFF

Press again

return to return to return to return to

High High High High

* The brightness setting is memorized.

22. Speaker 1-2 Mute (SPM)

; Dual Head Configuration only

This feature allows the radio operator to manually disable

the speaker audio of another control head.

Press the [SPM] Key, a confirmation tone sounds, and

the other head speaker is muted. Both head displays shows

X MUTE (X=Muted HEAD number).

This muted condition is canceled by both head keys with-

out PTT and Mic HOOK which is connected to Un-muted

head.

23. Mobile Relay Station (RPT)

; Dual Band Configuration only

This function allows the radio operator to use the RADIO

as a repeater.

(1) Both “Repeater Channel 1” and “Repeater Channel 2”

must be pre-programmed by the FPU. Each channels

must be on diferent bands.

(2) Press the [RPT] Key, then both the VHF and UHF units

move to the repeater channel, and enter Repeater mode.

Displays of both heads show “REPEATER”.

(3) If one unit receives a proper signal, the other unit will

start transmitting (repeating).

(4) If the signal stops, the repeat action will stop. If one of

the units detects another signal, the repeat action will re-

start.

(5) Press [RPT] again, both units return to their previous

channels, and exit the Repeater mode. However, during

the repeating mode, pressing [RPT] has no effect.

24. Emargency Call (EMG)

If the [EMG] Key is held down, the RADIO enters the

Emergency Mode. In the Emergency Mode, the channel

changes to the “Emergency Channel (set by the FPU)” in-

ternally. The display depends on “Emergency Channel Dis-

play” setting, and the Emergency Call (None, DTMF, MSK or

ANI board) is transmitted.

If “ANI Board” is selected for the Emergency Type, turn

the transceiver off, then turn it on again to recover “Normal

Mode”.

If “ANI Board” is not selected for the Emergency Type,

press and hold [EMG] key to recover “Normal Mode”.

OPERATING FEATURES

TK-790/(B)/H(B)

25. Busy Channel Lockout (BCL), BCL Override

The Busy Channel Lockout function prevents

interferance with other stations that may be using the same

channel.

While the selected channel is in use, pressing PTT

causes the RADIO to sound a warning tone, and transmis-

sion is inhibited. To stop the warning tone, release PTT.

If BCL Override has been enabled, pressing PTT within

500msec again will cancel BCL, and transmission is en-

abled.

26. 2Tone Signalling

2Tone signalling opens the squelch only when the RA-

DIO receives a proper 2Tone code that is the same as the

pre-programmed 2Tone for the channel. When the RADIO

receives a 2Tone code, the CALL icon flashes.

If Transpond has been programmed, the RADIO will re-

turn an acknowledgment signal automatically after receiving

the 2Tone code.

If Call Alert has been programmed, an Alert Tone sounds

after receiving a 2Tone code. You can configure “Normal”

(an alert tone beeps once) or “Continuous” (an alert tone

beeps every 5 seconds) for the Call Alert. Unmute condition

is canceled and the CALL icon goes off when ; (1) pressing

the [MON] Key, (2) hanging the microphone on its hook, (3)

muting continues for 10 seconds. (If “Auto Reset” has been

programmed)

27. DTMF Signalling

DTMF Signalling opens the squelch only when the RA-

DIO receives a proper DTMF code that is the same as the

pre-programmed “Primary Code (Individual ; 1~7digits)” or

“Secondary Code (Group ; 1~7digits)”. When the RADIO re-

ceives a correct code, the CALL icon flashes.

If Transpond has been programmed, the RADIO will re-

turn an acknowledgment signal automatically after receiving

the DTMF code.

If Call Alert has been programmed, an Alert Tone sounds

after receiving a DTMF code. You can configure “Normal”

(an alert tone beeps once) or “Continuous” (an alert tone

beeps every 5 seconds) for the Call Alert. Unmute condition

is canceled and the CALL icon goes off when ; (1) pressing

the [MON] Key, (2) hanging the microphone on its hook, (3)

muting continues for 10 seconds (If “Auto Reset” has been

programmed), and (4) receiving reset code. (Primary code +

“#” or secondary code + “#”)

28. Time Out Timer

(Possible to configure to each group)

The Time Out Timer function interrupts continuous trans-

mission after a specified time elapses.

Holding down PTT for longer than the programmed time

causes the RADIO to stop transmitting and sound a warning

tone. To stop the warning tone, release PTT.

29. Signalling AND/OR

(Possible to configure to each group)

The RADIO will be unmuted with a combination of QT/

DQT and 2Tone/DTMF. The AND/OR setting works as fol-

lows.

29-1. AND

The audio is unmuted when the RADIO receives the cor-

rect QT/DQT and 2Tone/DTMF. After transmitting, 2Tone/

DTMF will be canceled.

29-2. OR

The audio is unmuted when the RADIO receives the cor-

rect QT/DQT. 2Tone/DTMF is used just as an individual call

or group call.

30. Off Hook Decode

If the OFF HOOK Decode function has been enabled, re-

moving and replacing the microphone on the HOOK has no

effect for decoding QT/DQT and 2Tone/DTMF.

31. TX Audio Monitor

; Dual Head Configuration only

This function allows the radio operator to hear another

operator’s voice which is transmitted through another con-

trol head.

If the TX Audio Monitor function is set to “w/Talk Inter-

rupt” and one operator is transmitting, the other operator’s

control head displays “INTERCOM” and he/she can speak

to the transmitting control head by pressing PTT.

32. Roll Over/Dead End

32-1. Roll Over

When [ ] (CH UP) is pressed, or the CH UP/DOWN Knob

is turned CW from the Maximum channel, the channel

changes to the Minimum channel.

When [ ] (CH DOWN) is pressed, or the CH UP/DOWN

Knob is turned CCW from the Minimum channel, the chan-

nel changes to the Maximum channel.

32-2. Dead End

When [ ] (GR UP) is pressed, or the GR UP/DOWN Knob

is turned CW from the Maximum group, the group doesn’t

change.

When [ ] (CH UP) is pressed, or the CH UP/DOWN Knob

is turned CW from the Maximum channel, the channel

doesn’t change.

When [ ] (GR DOWN) is pressed, or the GR UP/DOWN

Knob is turned CCW from the Minimum group, the group

doesn’t change.

When [ ] (CH DOWN) is pressed, or the CH UP/DOWN

Knob is turned CCW from the Minimum channel, the chan-

nel doesn’t change.

OPERATING FEATURES

TK-790/(B)/H(B)

33. Minimum Volume

When the Volume Knob is adjusted fully counterclock-

wise, the audio level is set to the Minimum Volume level

which is programmed by the FPU.

34. Dead Beat Disable (DBD)

If the RADIO receives a DBD Code (1~7digits), the RA-

DIO returns an acknowledgment signal automatically, and

transmission is disabled. This TX INHIBIT condition is

memorized.

If the RADIO receives a DBD Reset Code (DBD Code +

#), the RADIO returns an acknowledgment signal automati-

cally, and transmission is Enabled.

35. ANI Board

The ANI board contains functions which you can use. To

use the function, you select that function on the ANI board.

36. Accessory Programmable Function

Port (PF Port)

The RADIO has 13 PF Ports.

HEAD (12 pin) : PF Input Port 2, PF Output Port 2

DECK (Dsub 25 pin) : PF Input Port 5, PF Output Port 4

Each Port can be programmed with a function from next

Table.

36-1. PF Input Port

External HOOK Open → OFF HOOK, Low → ON HOOK

CH Select A The Channel changes to Remote Channel

CH Select B

1~15. If CH Select A~D are set “H” or “Open”,

CH Select C the channel is selected by using the [ ]/[ ]

CH Select D keys or UP/DOWN Knob. (User Channel)

External PTT Open → PTT OFF, Low → PTT ON

Scan Open → Scan OFF, Low → Scan ON

Home Channel

Open → Current Channel, Low → Home Channel

Light Sense

Open → LCD Backlight is controlled by [DIM],

Low → LCD Backlight is set “Low”

Repeater SW

Open → Repeater inactive, Low → Repeater Active

* Dual BAND configuration only

External Monitor Open → Monitor OFF, Low → Monitor ON

OPERATING FEATURES

36-2. PF Output Port

AUX A Pressing [AUXA] once → Low, Pressing [A]

[AUXA] again → OPEN-COLLECTOR

AUX B Pressing [AUXB] once → Low, Pressing [B]

[AUXB] again → OPEN-COLLECTOR

AUX C Pressing [AUXC] once → Low, Pressing [C]

[AUXC] again → OPEN-COLLECTOR

TOR

Receiving correct QT/DQT →

Low

, Not receiv-

ing correct QT/DQT →

OPEN-COLLECTOR

COR

BUSY → Low, Not BUSY → OPEN-COLLECTOR

37. Timed Power Off

This function works as “Automatic Power Switch Off”.

Timed Power Off timer starts from the ignition-off. After

the timer expires, the RADIO will automatically turn off. The

timer will be reset if the ignition is turned on and off.

This function requires ignition-sense. Connect the igni-

tion-line to the 9-pin connector which is located at the rear of

the RADIO.

After the timer expires, you can turn the transceiver on

again with 2 methods below.

1) Timed power off function (Default)

Press the power switch.

2) Ignition function & Timed power off function

Turn the ignition on.

38. Emergency

•Active tome

Automatic transmission period in the emergency mode.

•Interval Time

Interval time between the automatic tansmissions.

•Duration of Locator Tone 1

Duration of an alert tone before the automatic transmis-

sion is performed.

•Duration of Locator Tone 2

Duration of an alert tone after the automatic transmission

is performed.

•Emergency Channel Display

Setting for the display in the emergency mode.

The transceiver can be programmed to display “EMER-

GENCY” channel name when it is in emergency mode.

If you set to “off” by KPG-44D the transceiver shows

selected group/channel/status before entering to the emer-

gency mode however the transceiver is in an emergency

mode.

TK-790/(B)/H(B)

•Emergency Mode Type

Speaker mute on or off in the emergency mode.

•Emergency Type

Select an Emergency code format from DTMF, MSK, ANI

board or OFF (Disabled).

•Emergency DTMF ID

The emergency DTMF ID code when you select DTMF in

the emergency type.

•Emergency Call Fleet

The emergency fleet number when you select MSK in

the emergency type.

•Emergency Call ID

The ID number when you select MSK in the above emer-

gency type.

39. MSK PTT ID

•Side Tone

A tone to notify the voice transmission is allowed after

sending the MSK PTT ID (Connect ID).

•Fleet (Own)

•ID (Own)

Configure the Fleet/ID of the MSK PTT ID (Fleet Sync

Format).

•Data TX Mod. Delay

Delay time of transmitting the MSK ID after the trans-

ceiver enters the transmission mode.

40. Power On Text

To display the Power on text for approximately 2 seconds

when the transceiver is turned on.

41. Data Programming (PC Mode)

41-1. Preparation and Connection

TK-790 transceiver is programmed by using a personal

computer, programming interface cable KPG-43, and pro-

gramming software KPG-44D.

The programming software can be used with an IBM-PC

or compatible machine. Figure 1 shows the setup for pro-

gramming.

Fig. 1

KPG-43

IBM-PC

KPG-44D

41-2.

Programming Interface Cable KPG-43 Description

The KPG-43 is required to interface TK-790 to the com-

puter. It has a circuit in its D-sub 25 pin connector case that

converts RS-232C logic level to TTL level.

KPG-43 is used to connect between TK-790 microphone

connector and RS-232C serial port of computer.

41-3. Programming Software KPG-44D Description

KPG-44D is the programming software for TK-790 sup-

plied on a 3.5" floppy disk. This software runs under MS-

DOS version 3.1 or later on an IBM-PC/XT, AT, or PS2 or

compatible machine.

The data can be input to or read from TK-790 and edited

on the screen. The programmed or edited data can be

printed out. It is also possible to tune the transceiver.

We recommend that install KPG-44D for example to

harddisk first then use it.

KPG-44D instruction manual part No. : B62-1011-XX.

User mode

PC mode PC programming mode

* PC test mode

* PC tuning mode

Panel test mode Panel tune mode

Clone mode All clone mode

Group clone mode

Firmware programming mode 19200 bps

38400 bps

57600 bps

115200 bps

[PF4]

* : Single band only

OPERATING FEATURES

42. Mode

TK-790/(B)/H(B)

Mode Function

User mode Customer use this mode

PC mode Communication between the radio and

PC (IBM compatiible). It requires the

KPG-44D.

Panel test mode Dealer uses to check the fundamental

(Refer to ADJUSTMENT)

characteristics.

Panel tune mode Dealer uses to tune the radio.

(Refer to ADJUSTMENT)

Clone mode Programmed data is transferred from

one transceiver to another by using a

cloning cable.

Firmware program- Re-write the firmware of the flash ROM.

ming mode Note : When programming the firmware,

it is best to copy the data from the

floppy disk to your hard disk, then from

the hard disk to the CPU.

Directly copying from the floppy disk to

the CPU may not work because the

access speed is too slow.

42-1. How to Enter Each Mode

Mode Operation

User mode Power on

PC mode Connect the PC and turn the power on.

Then the radio can be controlled by the FPU.

Panel test mode Hold down the [PF1] key, turn the radio

power on.

Panel tune mode Press the [GR ] key from the panel test

mode.

Clone mode Hold down the [PF5] key, turn the radio

power on.

Firmware Hold down the [PF2] key, turn the radio

programming mode

power on.

43. PC Tuning Mode

When making adjustment while in PC tuning mode,

modify the KPG-43 programming interface cable as de-

scribed below.

1. Remove the two screws from the plug cover, then lift the

cover from the plug.

2. Solder the lead wire onto the MIC tab on the PCB, and

the ground wire onto the ME tab.

3. Create a hole in the casing (as shown in the illustration)

then fit the cable into the hole. Replace the cover and

secure it using the two screws.

MICME

IC1

GND

TRD

MAXIM

MAX232C

Create a hole

Cable

MIC

OPERATING FEATURES

TK-790/(B)/H(B)

OPERATING FEATURES

44-1. To Enter the Clone Mode and Connect

Transceivers

(1) Hold down the [PF5] key and turn on the power switch on

the master side transceiver.

Turn on the power switch on the slave side transceiver as

usual.

(2) Connect the master and slave side transceivers with a

cloning cable.

44-2. All Clone

1. Enter the All Clone Mode from the clone mode with the

[Up/down] knob.

2. Press the [PF5] key to start cloning.

Cloning cable

(Part No. E30-3370-05)

Fig. 2

44-3. Group Clone

1. Enter the group clone mode from the clone mode with

[Up/Down] knob.

2. Press the [PF5] key to enter the master group select

mode. Select the master group with [Up/Down] knob.

A CLONE / ALL CLONE

Master side display

TX LED on

TX LED off

END

Slave side display

– PC –

Busy LED on

Busy LED off

User mode

Data cloning

[PF5]

3. Press the [PF5] key to enter the slave group select mode.

Select the slave group with [Up/Down] knob.

4. Press the [PF5] key to start cloning.

Note : The transceiver does not enter the clone mode if it is

disabled with the FPU. To clone the transceiver both trans-

ceivers must be same. If the panels, frequency ranges, op-

tional board are different, they cannot be cloned.

Master side display

TX LED on

TX LED off

END

Slave side display

– PC –

G CLONE / GROUP CLONE

GRP 1M / GROUP 1M

GRP 160M / GROUP 160M

GRP 1S / GROUP 1S

GRP 100S / GROUP 100S

User mode

Busy LED on

Busy LED off

User mode

Data cloning

[PF5]

[Up/Down]

[PF5]

44. Clone Modes

There are two clone modes : "All Clone Mode", in which

all data programmed in one transceiver with the "FPU" is

copied to another transceiver, and "Group Clone Mode", in

which group data in one transceiver is copied to a group in

another transceiver.

The cloning operation is performed from the master side

transceiver.

All clone/Group clone selection

[PF5] + Power on

All clone mode Group clone mode

[Up/Down] [PF5]

Master group selection

[Up/Down]

[UP/Down]

[PF5]

Slave group selection

Cloning

END

Power off

[PF5][PF5]

[PF5]

TK-790/(B)/H(B)

INSTALLATION

1. Contents

• Front panel kit (KCH-10, KCH-11)

Description and use of the knob supplied with the KCH-

10/11

• Optional voice scrambler function

Voice scrambler use and connection

• Optional ANI function

ANI board connection

• Ignition sense cable (KCT-18)

Description of the ignition function and timed power off

function and connection

• External speaker (KES-4)

KES-4 connection method and modification for increas-

ing the speaker output of the control head

• Horn alert function

Modification for changing the function of the ACC termi-

nal for horn alert

• Accessory terminal function

Description and use of D-SUB 25-pin ACC terminals, “MI/

DI” and “SB”

• Connection with remote kit

Modification of the radio to use KRK-5, KRK-6DH, KRK-

7DB, or KRK-8DBH

2. Front Panel Kit (KCH-10, KCH-11)

2-2. Connection with TK-790(B)/H(B)

1. Remove the upper and lower halves of the case of the

TK-790(B)/H(B).

2. Connect the lead (W501) with a connector of the control

unit (X57-561 B/3) to CN1 of the KCH-10 or KCH-11.

3. Install the KCH-10 or KCH-11 on the radio using the

screws (N32-3006-46) ( 1 ) supplied with the front panel

kit. Take care not to get the lead between the KCH-10 or

KCH-11 and an edge of the case. (You can install the

panel upside down if necessary to install the radio.)

4. Reinstall the upper and lower halves of the case.

5. Connection the short plug for the accessory connector

(9-pins) on the rear of the radio.

2-3. Install the accessory knobs

When a function is set by the programming software

(KPG-44D), the key legend can be changed by inserting the

accessory knobs into PF1 to PF9 of the KCH-11 (PF1 to PF5

: KCH-10). The accessory contains a set of 30 knobs : AN, D/

A, DIM, HA, HC, IC, MON, OPT, OST, PA, RCL, RPT, SCN,

SP, SPM, SQ, TA, , , CH1, CH2, CH3, CH4, CH5, AUX A,

AUX B, AUX C, EMG, and blank.

Fig. 1

KCH-10 or

KCH-11

No. K29-5276-*3 K29-5277-*3 K29-5305-*3

1 AN RCL CH1

2 D/A RPT CH2

3 DIM SCN CH3

4 HA SP CH4

5 HC SPM CH5

6 IC SQ AUX A

7 MON TA AUX B

8 OPT AUX C

9 OST EMG

10 PA No printing

Fig. 2

12345678910

GRP

VOL

POWER

BUSY

PF1 PF2 PF3 PF4 PF5

GRP

POWER

VOL

BUSY

SCAN OPT OSTA B CMON

CALL

MON

SCN

PF1 PF2 PF3 PF4 PF5

PF8 PF9

PF6 PF7

KCH-10

KCH-11

Fig. 3

TK-790/(B)/H(B)

INSTALLATION

Fig. 4-1 Knob insertion

Fig. 4-2 Knob removal

3. Optional Voice Scrambler Function

The optional voice scrambler function can be used by two

methods.

1. Assign this function to the OPT key by using the pro-

gramming software (KPG-44D).

When the OPT key is pressed, the OPT indicator comes

on, and the optional (scrambler) function is enabled.

When the key is pressed again, the OPT indicator goes

off and the function is disabled.

2. Assign the optional scrambler function to each channel

by using the programming software (KPG-44D). The op-

tional scrambler function can be used without pressing

the OPT key.

3-1. Code setting

The code can be set by two methods.

1. Hold down the OPT key to enter the code setting mode.

Codes 1 to 16 will be displayed. Set a code by turning the

[Up/Down] knob. When the OPT key is pressed again,

the code setting mode terminates.

2. Set a code for each channel by using the programming

software (KPG-44D).

CN508 Voice

scrambler

MCI (MIC signal input)

MCO (MIC signal output)

DEI (Detection signal input)

AC (Audio control signal output)

BC1 (Scramble code output 1)

BC2 (Scramble code output 2)

BC3 (Scramble code output 3)

BC4 (Scramble code output 4)

TXD2

RXD2

DEO (Detection signal output)

PTO (PTT signal output)

8C (8V output)

E (Earth)

Fig. 5

3-2. Voice scrambler board connection

•Modification

1. Remove the upper half of the case of the TK-790.

2. Remove R515 and R604 on the control unit (X57-561 B/

3) (Refer to page 21).

•Connection

The functions of pins of CN508 on the control unit (X57-

561 B/3) are shown in the figure.

Join the CN508 connector to the voice scrambler board

via the E37-0808-05 connector cable.

CN507 ANI board

SQ (Squelch signal output)

EMG (Emergency signal output)

EPT (External PTT signal input)

I/O (Auxiliary input/output)

SEL (Non connection)

AS2 (Audio mute input)

MCM (MIC mute input)

TON (Side tone input)

TCN (Speaker mute input)

DTI (Data input)

E (Earth)

8C (Common 8V output)

PTO (PTT signal output)

DEO (Detection signal output)

CN508

Fig. 6

4. Optional ANI Function

•Connection

Join the CN507 connector to the ANI board via the E37-

0809-05 connector cable, and the CN508 connector to the

ANI board via the E37-0808-05 connector cable.

TK-790/(B)/H(B)

5. Ignition Sense Cable (KCT-18)

The KCT-18 is an optional cable to use the following func-

tions:

5-1. Ignition function

The ignition function allows you to turn the transceiver's

power on and off with the ignition key of your car. When

you are driving with the ignition key on, the horn alert func-

tion is disabled.

5-2. Timed power off function

The timed power off function turns the transceiver's

power off the time specified with the programming soft-

ware (KPG-44D) after the ignition key is turned off. When

you are driving with the ignition key on, the horn alert func-

tion is disabled.

The ignition sense function and the timed power off func-

tion can be used at the same time.

5-3. Modification

•If the TK-790 and KCH-10 or KCH-11 are used

1. Remove the short plug from the accessory connector (9

pins) on the back of the transceiver.

2. Insert the KCT-18 into pin 1 (IGN).

3. Remove the upper half of the case of the TK-790.

4. Set jumper resistors (0 ohm), R504, R506, R742 and

R743, on the control unit (X57-561 B/3) as shown in

Table 1 (Refer to page 21).

5. Reinstall the upper half of the case.

•When the remote kit is used

If the accessory connector (9 pins) on the rear of the

transceiver is available, use the method described above. (If

the KRK-7DB or KRK-8DBH is used, use the accessory con-

nector (9 pins) on the back of radio 1.)

If the accessory connector (12 pins) on the back of the

control head is used:

1. Remove the plug from the accessory connector (12 pins)

on the back of the control head.

2. Cut off the end of the rubber cap (accessory), insert the

KCT-18 into the cap, and insert it into pin 1 (IGN) of the

short plug.

3. Install the short plug and rubber cap on the connector on

the rear of the control head, then clamp the bottom of the

rubber cap with the supplied tie wrap.

4. Remove the upper half of the case of the TK-790.

5. Set jumper resistors (0 ohm), R504, R506, R742 and

R743, on the control unit (X57-561 B/3) as shown in

Table 1 (Refer to page 21).

6. Reinstall the upper half of the case.

Note : If the KCT-18 is used for the KRK-8DBH, use the 9-pin

plug on the back of radio 1 or the 12-pin plug on the back of

head 1. The plugs on radio 2 and head 2 cannot be used.

If the KCT-18 is used for the KRK-7DB, use the 9-pin plug on

the back of radio 1 or the 12-pin plug on the back of the

head. The plug on radio 2 cannot be used.

Available function when KCT-18 is

R504 R506 R742 R743

connected

Horn alert function OFF during

Present Absent Present Absent

driving, Timed power off function

(Default)

Horn alert function OFF during

Absent Present Present Absent

driving, Ignition function

None (The transceiver cannot be

Absent Absent Present Absent

turned on.)

HA function OFF during driving,

Present Absent Absent Present

Ignition function & Timed power

off function

Table 1 R504, R506, R742 and R743 setup chart

(Refer to page 21)

INSTALLATION

Fig. 7

3KCT-18

Accessory

connector (9P)

Rubber cap

Tie wrap

KCT-18

Cut

Accessory

connector (12P)

6. External Speaker (KES-4)

The speaker output from the TK-790 is as follows:

1. The KCH-10 has a built-in speaker (3W/8 ohms).

2. The KCH-11 does not have a built-in speaker.

3. The external speaker output from the accessory connec-

tor (9 pins) on the back of the transceiver is 13W/4 ohms.

Use the KES-4.

4. The speaker output from the accessory connector (12

pins) on the back of the control head is 2W/4 ohms. If the

remote kit (KRK-5, KRK-6DH, KRK-7DB or KRK-8DBH) is

used, use the KSP-1A or KES-4. If the KSP-1A is used, do

not attempt to modify the transceiver to increase the au-

dio output.

Note : Since the TK-790 uses a BTL audio amplifier, do not

ground the speaker output pin.

TK-790/(B)/H(B)

6-1. Connection for the KES-4 with the TK-790

•When taking the AF output from the accessory

connector (9-pin) on the rear of the radio

The following tools are required for changing the connec-

tor.

Extracting tool

the following extracting tool is recommended :

Molex Inc. Order No. : 11-03-0002

1. Remove the connector with jumper from the external

speaker connector on the rear panel of the radio (Fig. 8-

1).

Note : Save the jumper, which is required when the radio

is used without the external speaker.

2. Remove the terminals with the jumper from the connec-

tor housing holes number 3 and 6 using the extracting

tool.

Removing the jumper lead (Fig. 8-2)

1) Insert the extracting tool (11-03-0002) into the con-

nector while pushing the jumper lead in the direction

of (a).

2) Push the extracting tool into collapse the barbs of the

crimp terminal.

3) Pull out the lead while continuing to push the extract-

ing tool in the direction (b).

3. Reinsert the terminal with the black and white stripe lead

into hole number 2, and the terminal with the black lead

into hole number 6 (Fig. 8-3).

4. Attach the connector to the external speaker connector

on the radio.

6-2. Connection for the KES-4 with the remote kit

(KRK-5, KRK-6DH, KRK-7DB, KRK-8DBH)

(When output is from the 12-pin accessory con-

nector on the rear of the control head : remote

operation)

•Modification of plug (12-pin)

1. Remove the plug from the accessory connector (12-pins)

on the rear of the control head.

2. Cut off the end of the rubber cap, insert the KES-4

speaker cable into the cap, and insert it into pins 10 and

11.

3. Install the plug and rubber cap on the accessory connec-

tor on the rear of the control head, then clamp the bottom

of the rubber cap with the supplied tie wrap.

INSTALLATION

Fig. 8-1 Fig. 8-2

Extracting tool

(11-03-0002)

Jumper lead

(a)

(b)

Barbs

Crimp terminal

Square-type plug

(E37-0733-05)

Fig. 8-3

Black lead

Black/White lead

Fig. 9

Plug (12P)

Rubber cap

Tie wrap

Cut

Speaker cable

(To KES-4)

•If the KCH-10 is used

If the KSP-1A or KES-4 is connected to the 12-pin acces-

sory connector, cut the internal speaker wire at the base of

the speaker.

If the internal speaker is used, cut the wire connected to

pins 10 and 11 of the 12-pins accessory connector at the

base of the connector (Fig. 10).

Fig. 10

Rear of the control head

KCH-10

CN3

CN1

CN2

TK-790/(B)/H(B)

6-3. Modification to increase the audio output of

the control head

The speaker output can be increased to 13W by moving

jumper resistor (0 ohm) R628 on the control unit (X57-561

B/3) to R627. In this case, the KCH-10 internal speaker can-

not be used because the maximum input (3W) of the inter-

nal speaker is exceeded. Therefore, use the KES-4.

Note : Even if the KRK-6DH is modified in this way, the au-

dio output of head 2 cannot be increased.

To increase the audio output of head 2 of the KRK-8DBH,

modify radio 2 in the same manner.

6-4. Use as public address speaker

1. Remove the short plug from the 9-pin accessory connec-

tor on the rear of the radio. (Remove the jumpers as de-

scribed in Section 5-1.)

2. Insert the KES-4 speaker leads into pins 7 and 8.

3. If you remove jumper shorting pins 3 and 6, the 20W PA

(public address) voice signal is output from pins 7 and 8.

(Only when the PA or SP switch is on.)

4. If you use the radio with pins 3 and 6 shorted, the internal

speaker is available (when the KCH-10 is used). The KCH-

11 does not contain a speaker.

Note : Relation ship between accessory connector (9-pins)

connection and speaker output.

When pins 3 and 6 are shorted ; The 3W internal speaker is

used (KCH-10 only).

When pins 3 and 6 are open and output is from pins 7 and 8

; The 20W external speaker is used.

Default Modification 1 Modification 2

R690 Present Present Absent

R691 Present Absent Absent

R692 Absent Present Present

State

Table 2 (Refer to page 21)

8. Accessory Terminal Function

8-1. 25-pin accessory terminal

•Pin 13

MI/DI (MIC Signal Input/Output or Data Audio Input)

This pin has one of the two functions listed in Table 3 by

setting jumper resistors (0 ohm) R640 and R641 on the

control unit (X57-561 B/3) (Refer to page 21).

1) MIC signal input/output

This pin is directly connected to the MIC input pin of the

transceiver, so it has the same function as the MIC input

pin. When the input is 5mV/3 kHz, DEV (600 ohms)

modulation is obtained. The MIC input is output from the

transceiver panel as it is.

2) Data audio input

The signal from this pin passes through the LPF (fc: about

10kHz), is summed with the MIC AMP output, and goes

to the modulator. Therefore, it is not preemphasized.

•Pin 14

SB (DC Power Output After Power Switch)

The maximum output (13.6V : TK-790/(B), 13.4V : TK-

790H(B) / 0.5A) can be obtained by modifying the control

unit as follows:

Short the land of the print pattern near CN505 of the con-

trol unit (X57-561 B/3).

R640 R641 Function

Present Absent MIC signal input/output

Absent Present DATA audio input : Default

Table3 (Refer to page 21)

9. Connection with the Remote Kit

When the KRK-5, KRK-6DH, KRK-7DB or KRK-8DBH is

used, set chip resistors and transistors as shown in the table

below.

KRK-5 KRK-6DH KRK-7DB KRK-8DBH

Radio 1 Unnecessary

Radio 2 – Remove R546 and R661

Move R602 to R705.

Table 4 (Refer to page 21)

INSTALLATION

Plug (9P)

Crimp terminal

(E23-0613-05)

To KES-4

Black lead

Black/White lead

Fig. 11

7. Horn Alert Function

The HR1 pin of the accessory connector (9-pin) on the

rear of the transceiver is an open collector and the maxi-

mum current is 100mA. The maximum available current can

be increased to 1A by installing a relay.

1. Remove the upper half of the case of the TK-790.

2. Move jumper resistor (0 ohm) R691 on the control unit

(X57-561 B/3) to R692. To make the HR2 pin, remove

R692 (Refer to page 21).

3. Remove screws and erect the PC board. Install and sol-

der relay K501 (Part No. : S76-0407-05).

4. Reinstall the PC board and the upper half of the case.

HR1

HR2

HR1

HR2

HR1

HR2

TK-790/(B)/H(B)

INSTALLATION

R504

R506

R546

R628

R627

R661

R691 K501

R692

R743

R690

R742

R515

R604

R641

R640

R602

R705

CONTROL UNIT (X57 B/3)

Component side view

Accessory terminal

function (Page 20)

R640,641 : Accessory terminal

function (Page 20)

Connection with

the remote kit

(Page 20)

Connection with

the remote kit

(Page 20)

Connection with

the remote kit

(Page 20)

Horn alert (Page 20)

External speaker

(Page 18)

Ignition sense

cable (KCT-18)

(Page 18)

Ignition sense

cable (KCT-18)

(Page 18)

Voice Scrambler

(Page 17) R515 : Voice Scrambler

(Page 17)

TK-790/(B)/H(B)

DISASSEMBLY FOR REPAIR (TK-790/(B))

1. Removing the Case and Shield Cover

1. Remove the 9 screws ( 1 ), and remove the upper and

lower halves of the case. (Remove the 4 screws holding

the upper half and the 5 screws holding the lower half.)

2. Remove the shield cover ( 2 ).

2. Removing the TX-RX Unit (X57-561 A/3)

1. Remove the 7 screws ( 3 ), and remove the PLL shield

case.

2. Remove the connector (CN201) and coaxial plugs

(CN104, CN203) from the final unit, and remove the flat

cable (CN202) upwards from the control unit (CN502).

3. Remove the 5 screws ( 4 ).

333

444

CN203

CN104

CN201

Final

unit

TX-RX

unit

Control

unit

3. Removing the Final Unit (X57-561 C/3)

1. Remove the 2 screws (

) holding the power module to

the frame.

2. With a screwdriver, remove the leaf spring ( 6 ) holding

the Q2 to the frame.

3. Desolder the power module.

4. Remove the 2 screws holding the lead terminal from DC

connector (2P) on the rear.

5. Remove the 8 screws (

) holding the PC board.

6. Desolder CN4 on the antenna connector.

TK-790/(B)/H(B)

DISASSEMBLY FOR REPAIR (TK-790H(B))

1. Removing the Case and Shield Cover

1. Remove the 12 screws ( 1 ), and remove the upper and

lower halves of the case. (Remove the 6 screws holding

the upper half and the 6 screws holding the lower half.)

2. Remove the 2 screws ( 2 ), and remove the shield cover.

2. Removing the TX-RX Unit (X57-561 A/3)

1. Remove the 7 screws ( 3 ), and remove the PLL shield

case.

2. Remove the connector (CN201) and coaxial plugs

(CN104, CN203) from the final unit, and remove the flat

cable (CN202) upwards from the control unit (CN502).

3. Remove the 5 screws ( 4 ).

3. Removing the Final Unit (X45-356)

1. Remove the 2 hexagonal bosses ( 5 ).

2. Remove the 3 screws ( 6 ) holding the power module

and transistor to the frame.

3. Desolder the power module.

4. Remove the 1 screw ( 7 ) holding TH1.

5. Remove the 4 screws ( 7 ) holding the final transistor.

6. Remove the 2 screws ( 8 ) holding the lead terminal

from DC connector (4P) on the rear.

7. Remove the 13 screws ( 9 ) holding the PC board.

8. Desolder W3 on the antenna connector.

333

444

CN203

Control

unit

TX-RX

unit

Final

unit

CN104 CN201

TK-790/(B)/H(B)

DISASSEMBLY FOR REPAIR

4. Removing the Control Unit (X57-561 B/3)

1. Remove the 8 screws ( 1 ).

2. With a screwdriver, remove the 2 leaf springs holding the

ICs to the frame ( 2 ).

3. Remove the flat cable (CN502).

4. Remove the 2 connectors CN501 and CN506.

5. Remove the connector (CN505) from D-sub connector

(25P) on the rear.

Leaf spring

Screw-

driver

CN502

CN501 CN506

CN505

5. Removing the Accessory Connector on

the Rear

1. Confirm that the screw holding +DC cable (red) and the

screw holding –DC cable (black) of the final unit are re-

moved, and that CN506 of the control unit (X57-561 B/3)

is disconnected. Remove the 4 screws on the rear ( 3 ).

2. Pull out the connector. (Take the connector terminals out

through the opening in the frame.)

TK-790/(B)/H(B)

DISASSEMBLY FOR REPAIR

6. Disassembly of the Display Unit

(X54-3190) : KCH-10

1. Pull out the VOL and UP/DOWN knobs ( 1 ).

2. Remove the 2 hexagnal nuts ( 2 ).

3. Disconnect the 2 connectors (CN2 and CN4) of the dis-

play unit (X54-3190 A/3). You can remove the UP/

DOWN encoder ( 3 ).

4. Remove the waterproof seal ( 4 ).

5. Remove the 4 screws ( 5 ) holding the speaker and PC

board fitting.

6. Remove the 3 screws ( 6 ). You can remove the display

units (X54-3190 A/3 and C/3) ( 7 and 8 ).

7. Remove the 3 screws ( 9 ), and remove the sub-panel

(

) and keytop (

7. Disassembly of the Display Unit

(X54-3200) : KCH-11

1. Pull out the VOL and UP/DOWN knobs ( 1 ).

2. Remove the 2 hexagnal nuts ( 2 ).

3. Remove the waterproof seal ( 3 ).

4. Disconnect the connector (CN4) of the display unit (X54-

3200 A/2), and remove the 5 screws ( 4 ). you can

remove the up/down encoder ( 5 ) and display unit.

5. Remove the 4 screws ( 6 ), and remove the sub-panel

(7 ) and keytop ( 8 ).

CN4

CN2

C/3

B/3

A/3

B/2

A/2

CN4

TK-790/(B)/H(B)

CIRCUIT DESCRIPTION

1. Transmitter Circuit

1-1. Microphone amplifier section (X57 B/3)

The audio input from the microphone is attenuated by

VR501 and passes through the active high-pass filter (pre-

emphasis circuit) in IC505, the compressor circuit in IC504,

the IDC (limiter circuit) in IC505, the summing amplifier cir-

cuit in IC510, the active low-pass filter in IC510, the sum-

ming amplifier circuit in IC513, and the D/A converter in

IC512, and is output from the CN502 to the CN202. Q504 is

used as a microphone mute switch.

SUM

AMP

SUM

AMP

DAC

LPF IDC COMP HPF MUTE

SW MIC

VR501

IC513 IC510 IC510 IC505 IC504 IC505 Q504

IC512

CONTROL UNIT X57 B/3

to TX VCO

Fig. 1

1-2. Modulation section (X57 A/3)

The signal from the MO terminal of the CN202 goes to

D305 in the VCO, and the VCO is directly modulated. The

transmit signal output from the VCO passes through switch

D306, is amplified by Q201 and Q204, and is output from

the CN203 to the CN1.

TX-VCO

Q201 Q204

AMP AMP

APC

TX-RX UNIT X57 A/3

D306

Fig. 2

1-3. Final amplifier section (X57 C/3) : TK-790/(B)

The signal from the DO terminal of the CN1 is applied to

drive the power module and the output is fed through trans-

mit/receive switching diode ; D3,D4, low-pass filter, and CM

coupler to the antenna connector.

CM coupler is a line for detecting traveling and reflected

waves. Traveling waves are detected by D5 and fed through

the APC control to differential amplifiers Q5, which compare

the signal level with the reference voltage of PC tuned.

The output is amplified by DC amplifier Q1 to control APC

DC amplifier Q2. Q1 controls the power supply voltage for

the power module, keeping the transmitter output constant.

To protect the transmitter power amplifier stages, there is

protection circuit, against abnormal antenna loading.

If an abnormal antenna load is connected the reflected

wave level increases. Reflected waves are detected by D6

and the output level is fed to the differential amplifier, lead-

ing to the transmitter output power being reduced in the

way already described.

POWER

MODULE ANT

FWD

DET

REF

DET

LPF LPF

coupler

APC

DRIVE

AMP

Differential

AMP

DB Q1

D3,4

D5 D6

VR1

FINAL UNIT (X57 C/3)

Fig. 3

1-4. Final amplifier section (X45) : TK-790H(B)

The signal from the DO terminal of the CN1 is applied to

drive the power module, and the output is divided into two

signals which are amplified by Q6 and Q7. The signals are

mixed and the resulting signal is fed through CM coupler,

transmit/receive switching relay ; K1, and the low-pass filter

to the antenna connector.

CM coupler is a line for detecting traveling and reflected

waves. Traveling waves are detected by D1, D3 and fed

through the APC control to differential amplifiers Q5, which

compare the signal level with the reference voltage of PC

tuned.

The output is amplified by DC amplifier Q4 to control APC

DC amplifier Q3. Q4 controls the power supply voltage for

the power module, keeping the transmitter output constant.

To protect the transmitter power amplifier stages, there are

two protection circuits which one is against abnormal an-

tenna loading and the other is against overheating.

If an abnormal antenna load is connected, the reflected

wave level increases. Reflected waves are detected by D2,

D3 and the output level is fed to the differential amplifier Q5,

leading to the transmitter output power being reduced in the

way already described. If an abnormal high temperature is

detected by the thermistor TH1, DC SW Q1 is made to re-

duce the reference voltage of the PC tuned. This also leads

to the transmitter output power being reduced. Antenna

switching is done by a relay K1 with 8R.

POWER

MODULE AMP

FWD

DET

REF

DET

LPF

ANT

coupler

APC

DRIVE

AMP

Differential

AMP

DB Q3

D1 D2

VR1

Q5 Q2

FINAL UNIT (X45)

AMP

Rectified

Diode

TH1

Q9 Q8

IC1

FIg. 4

TK-790/(B)/H(B)

2. Receiver Circuit

Incoming signals from the antenna pass through a low-

pass filter in the final unit of the transmitter system, and are

switched to the front-end of the receiver system via a re-

ceive/transmit switch (switching diode D3 and D4 : TK-790/

(B), switching relay K1 : TK-790H(B)).

The signal is then passed through an antenna matching

coil. After passing through the BPF (L.C filter), it is amplified

by the RF amplifier (Q101). The tuned varactor BPF

(L110~112) is then passed, and it enters the 1st mixer.

The 1st mixer use a double balanced mixer (A101). The

DBM is an excellent IM (intermodulation distortion) and im-

age. The 1st mixer mixes the signal with the 1st local oscil-

lator frequency and converts it to the 1st IF (44.85MHz).

The signal is amplified by the 1st IF amplifier 1 (Q102).

The signal then passes through two monolithic crystal fil-

ters (XF101 : Wide, XF102 : Narrow) to remove unnecessary

nearby frequency components. The signal from the XF101

or XF102 is used as the 1st IF signal.

The 1st IF signal is amplified by 1st IF amplifier 2 (Q107)

and fed into IC101 in the FM IF IC. The IF signal is then

mixed with the 2nd local oscillator frequency of 45.305MHz

to generate the 2nd IF of 455kHz. The 455kHz signal is then

passed through a ceramic filter (CF101, CF103 : Wide,

CF102, CF104 : Narrow) and fed back into IC101 for addi-

tional amplification.

The AF signal output from IC101 then passes through

the control unit's HPF and D/A converter IC. After entering

the AF power amplifier (IC522), the signal is output from the

speaker.

CIRCUIT DESCRIPTION

Item Rating

Nominal center frequency 44.85MHz

Pass bandwidth ±5.5~7.5kHz or more at 3dB

Attenuation bandwidth ±25kHz or less at 40dB

Ripple 1.0dB or less

Insertion loss 3.0dB or less

Guaranteed attenuation

85dB or more at fo+400~+1000kHz

fo–200~–1000kHz

Terminating impedance 3.2kΩ / –1.0pF

Table 1 Crystal filter (L71-0512-05) : Wide

(TX-RX unit XF101)

Item Rating

Nominal center frequency 44.85MHz

Pass bandwidth ±3.5kHz or more at 3dB

Attenuation bandwidth ±15kHz or less at 40dB

Ripple 1.0dB or less

Insertion loss 4.0dB or less

Guaranteed attenuation

85dB or more at fo+400~+1000kHz

fo–200~–1000kHz

Terminating impedance 3.0kΩ / –0.5pF

Table 2 Crystal filter (L71-0513-05) : Narrow

(TX-RX unit XF102)

Fig. 5 Receiver circuit

ANT

LPF

L7,5,4

LPF

L9,8,7 D3,4

ANT

BPF

IC101

IC504 IC515

AMP HPF BEF

RF AMP

Q101

RF AMP

Q104

BPF

L110~112

1st MIX

A101 LPF

D306

ANT

T/R

CF103 CF101

Ceramic

filter

WIDE

CF104 CF102

Ceramic

filter

NARROW

X101

45.305

MHz

FM SYSTEM IC

NOISE

AMP

NOISE

DET

RSSI

DET

RSSI

DET

Q109D103

455kHz

1st IF AMP2

Q107

1st IF AMP1

Q102

MCF

XF101

MCF

XF102

WIDE

NARROW

44.85MHz

VCO

RX VCO

fRX+44.85MHz

IC518

(2/2)

IC524

(1/2)

IC524

(2/2)

DE-EMP EXP

IC512

IC518

(1/2)

IC522

VOL

BUFF

AF PA

VOL

IC516

CPU

26 RSSI

ASQ

FINAL UNIT : TK-790H(B) TX-RX UNIT

CONTROL UNIT DISPLAY UNIT

FINAL UNIT : TK-790/(B)

Fig. 6 Double balanced mixer

LO GND GND

GND IF RF

21 3

456

TK-790/(B)/H(B)

5. VCO/PLL Circuit

The VCO of TK-790 consists of two VCO circuits which

one oscillates the transmit signal with Q306 and the other

does the first local receive signal with Q305.

Each oscillators are switched by turning the source line

for Q307, Q308 and Q309 on and off. The signal output of

the VCO is amplified by the buffer amplifier Q310 and di-

vided into two signals which one is amplified by Q312 and

the other is done by Q311. The signal from Q312 passes

through D306 which is transmit/receive switch, is amplified

by Q201 and Q204, and is output from the CN203.

The signal from Q311 passes through the low-pass filter

and is applied to IC301 which is PLL frequency synthesizer

with VCXO ; X301. The VCXO of which the frequency stabil-

ity is within 2.0ppm (temperature range of –30 to +60°C)

generates 16.8MHz. The PLL-IC consists of three modulus

prescaler, fractional divider, reference divider, digital phase

comparator with charge pump output.

This PLL-IC is Fractional-N type synthesizer and performs

is 40 or 50 or 60kHz reference signal which is eighth of the

channel step (5 or 6.25 or 7.5kHz). The input signal from the

pins 5 and 8 of the PLL-IC is divided down to the 40 or 50 or

60kHz and compared at digital phase comparator.

The pulsed output signal of the digital phase comparator

is applied to the charge pump and transformed into DC sig-

nal. The DC signal from the pin 14 of the PLL-IC passes

through the active low-pass filter (loop filter), is applied to

the VCO and controls to keep the frequency of the VCO.

The serial data (DT, CP, EP) from the microprocessor

IC516 is input to the PLL-IC. And PLL lock condition is al-

ways monitored by the pin 28 (UL) of IC516.

CIRCUIT DESCRIPTION

Fig. 8

3. Squelch Circuit

The output from IC101 enters FM IC again, then passed

through a band-pass filter. The noise component output

from IC101 is amplified by Q109 and rectified by D103 to

produce a DC voltage corresponding to the nose level.

The DC voltage is sent to the analog port of the CPU

(IC516/pin 27). And IC101 output a DC voltage (RSSI) corre-

sponding to the input of the IF amplifier. The CPU reads the

RSSI signal via pin 26. IC101 determines whether to output

sounds from the speaker by comparing the input voltage of

pin 27 with the present value.

Only during scan, the RSSI DC voltage is used together

with the noise wave detection pin's DC voltage (pin 27).

SQ voltage

ANT input level

SQ close

SQ open

Preset

value

RSSI voltage

ANT input level

Preset value

Fig. 7 Squelch and RSSI voltage vs ANT input level

4. RX BPF (L110~112)

The signals are then fed into band-pass filter that uses

varactor diode tuning to reject unwanted signal compo-

nents, and is fed to the 1st mixer.

8CL

TX VCO

PLL-IC

IC516

µ-com

RX VCO

BUFF

AMP AMP

AMP

LPF

8CL

STR

Q306

Q307

SW Q308

Q309

Q305

IC301

Q311

X301

MB MO

Q310 Q312 D306

TX-RX UNIT

CONTROL UNIT

8C 8T

8CL

VCXO 5C

5C9CL

Q303,304

Fig. 9 VCO/PLL circuit

TK-790/(B)/H(B)

6. Control Circuit

The control unit consists of microprocessor IC and its

peripheral circuits. It controls the TX-RX unit and transfers

data to and from the control unit. The CPU (IC516) mainly

performs the following :

1) Switching between transmission and reception accord-

ing to the PTT signal input.

2) Reading channel, frequency, and program data from the

memory circuit.

3) Sending frequency data to the PLL.

4) Turning the squelch on and off according to the voltage

from the squelch circuit.

5) Controlling the audio mute circuit according to input de-

code data.

6) Sending encode data (QT, DQT).

7) Sending data to the D/A converter.

6-1. Memory circuit

A flash memory (IC519) with a capacity of 2Mbits con-

tains the transceiver control program for the CPU (IC516)

and data such as transceiver channels and operating fea-

tures.

This program can be easily written from an external de-

vices. Data, such as DTMF memories and operating status,

tuning data are programmed into the EEPROM (IC514).

6-2. Shift register

IC517 and IC523 are an interface IC for I/O port expan-

sion. It is used to expand the CPU (IC516) output ports.

6-3. D/A converter

IC512 is used as a conventional semi-fixed-resistor con-

verter. It sets the following :

1) RX sensitivity

2) Transmission power

3) Modulation level

4) Audio power

5) Frequency

6-4. Power supply circuit

D507 is a protection diode for the excess voltage

1) Turning the transceiver on/off with a power switch. Each

time you press the power switch, the IC501 output is al-

ternated. The output is feed through Q501, Q503 to turn

Q519 on. The power source is always supplied to the

IGN terminal. If 24V DC is supplied to the transceiver by

mistake, Q502 is turned on then Q503 and Q519 are

turned off to protect the transceiver (turned off).

2) Turning the transceiver on with a power switch, then

turning the transceiver off with the Timed Power Off

(TPO) function. POF is controlled by CPU’s TPO function.

POF is to turn the transceiver off. The POF logic signal is

feed through Q507 and Q506 then 8 pin of IC501 to turn

the transceiver off.

3) Turning the transceiver on with IGN SENS, then turning

the transceiver off with TPO function. If IGN is turned on,

Q543 and Q542 are turned on then the IC501 detects the

change. IC501 outputs the signal to turn Q541 off, then

Q503 and Q519 are turned on. When POF is detected by

6 pin of IC501, Q541 is turned on then Q503 and Q519

are turned off.

7. Signalling Circuit

7-1. Encode

• QT, DQT

The CPU (IC516) transmits the encode data selected by

the program. The data items are output from CPU pin 34.

The signal from this pin passes though the CR low-pass

filter and goes to the summing amplifier (IC510) in the mi-

crophone amplifier.

• DTMF

The DTMF-encoder (IC511) transmits the encode data.

The encode data is passed to the D/A convertor (IC512) for

DTMF deviation adjustment, and goes to IC505 in the IDC

circuit of the microphone amplifier.

7-2. Decode

• QT, DQT

The demodulated signal from CN502 pin 5 is amplified by

IC521 and passes through a low-pass filter (IC502) to re-

move audio components. The signal is input to pin 25 of the

CPU. The CPU digitizes this signal, and decodes the signal.

• 2 TONE

The demodulated signal from CN502 pin 5 is amplified by

IC504 and passes through a high-pass filter (IC518) and a

band-elimination filter (IC524) to remove QT and DQT.

This signal is amplified by IC521 and inputs pin 91 of the

CPU.

• DTMF

The demodulated signal from CN502 pin 5 is amplified by

IC504 and passes through a high-pass filter (IC518) and

band-elimination filter (IC524) to remove QT and DQT.

This signal inputs pin 1 of the DTMF decoder (IC525).

CIRCUIT DESCRIPTION

D507

AVR

Q506

Q543

Q542

Q544

Q503

Q519

IC501

D-FF

Q501

D501

Q502

Q541

Q507

Q518

IGN

POF

Fig. 10 Power supply circuit

CN502

DET 5

IC504

AMP

IC521

AMP

IC518

HPF

IC502

LPF

IC524

BEF

IC502

LPF

IC525

DTMF

decoder

IC521

AMP

QT·DQT

2TONE

IC516

CPU

Fig. 11 Decode

TK-790/(B)/H(B)

8. Display Unit

The optional display unit (front panel unit) for the TK-

790(B)/H(B) comes in two models : KCH-10 and KCH-11

8-1. KCH-10 (Contain : TK-790)

This display unit consists of a CPU (IC4) containing the

LCD driver, a reset IC (IC2), 5V AVR (IC1), EEPROM (IC3),

and other components.

• Encoder

Channels are changed by the rotary encoder (ENC). The

up/down pulses from the rotary encoder enter the CPU

(IC4), and converted to a serial data signal, and are sent to

the control unit.

• Power supply

Power is supplied to the CPU by converting SB from the

control unit to 5V by IC1. And SB is supplied to the LED for

backlight.

CIRCUIT DESCRIPTION

RST

D25

AVR

LCD

SWSWSWSW SW SW

SW REF

DM1 DM2

DM1 DM2 DM1 DM2

KEY BACK LAMP LCD BACK LAMP

PF1

PF2

PF3

PF4

PF5

POWER

S2 S3

IC2

RH5VL42C

PTT

D13

D17

IC3

AT24C64N10SI27 EEPROM

AF VR

IC1

NJM78L05UA

ENCODER

MIC

TRD

BLC

PTT

INT SP

MIC

1/2

TRD

RS1

RS2

RST

ED1 IC4

78064GCXXX8EU

Microprocessor

• CPU (containing LCD driver)

The on/off signals of keys other than the power switch,

and the PTT and HOOK signals, are converted to serial data

and sent to the control unit. Data is displayed on the 13-

segments, 8-digits LCD and 7-segments, 3-digits LCD by

the built-in LCD driver.

• Dimmer function

From the control of the CPU’s DM1/DM2 port, you can

switch the LCD/KEY backlight, busy/TX LED, or the optional

KMC-28 key backlight as shown in the following table.

Dimmer LCD KEY Busy/TX KMC-28

setting

H H ON ON ON

M M ON ON ON

L L ON ON ON

OFF OFF OFF OFF OFF

Fig. 12 KCH-10 block diagram

TK-790/(B)/H(B)

8-2. KCH-11

This display unit consists of a CPU (IC4) a reset IC (IC2),

5V AVR (IC1), EEPROM (IC3), and other components.

• Encoder

Channels are changed by the rotary encoder (ENC). The

up/down pulses from the rotary encoder enter the CPU

(IC4), and converted to a serial data signal, and are sent to

the control unit.

• Power supply

Power is supplied to the CPU by converting SB from the

control unit to 5V by IC1. And SB is supplied for the LED of

backlight.

• CPU

The on/off signals of keys other than the power switch,

and the PTT and HOOK signals, are converted to serial data

and sent to the control unit. Data is displayed on the 14-

digits and 3-digits dot matrix alphanumeric display.

• Dimmer function

From the control of the CPU’s DM1/DM2 port, you can

switch the LCD/KEY backlight, busy/TX LED, or the optional

KMC-28 key backlight as shown in the following table.

Dimmer LCD KEY Busy/TX KMC-28

setting

H H ON ON ON

M M ON ON ON

L L ON ON ON

OFF OFF OFF OFF OFF

RST

RST D19

5V AVR

LCD ASSY

SWSWSWSWSWSW SW

SW REF

DM1 DM2

KEY BACK LAMP LCD BACK LAMP

PF1

PF2

PF3

PF4

PF5

S10

MON

S11

PF6

POWER

S12

PF7

S13

SCN

S14

PF8

S15

PF9

S2 S3

IC2

RH5VL42C

PTT

D13

D12

IC3

AT24C64N10SI27 EEPROM

AF VR

IC1

NJM78L05UA

ENCODER

MIC

TRD

BLC

PTT

MIC

1/2

TRD

RS1

RS2

RST

ED1

IC4

78064GCXXX8EU

Microprocessor

Containing

LCD driver IC

Fig. 13 KCH-11 block diagram

CIRCUIT DESCRIPTION

TK-790/(B)/H(B)

Pin No. Pin name I/O Action

1 FCLR O Modem FCLR

2 CK O Common CLOCK

3 EM O D/A converter CS

4 MSKE O Modem MSKE

5 DIN O Modem DIN

6 EP O PLL LE

7 SCL O DTMF encoder CLOCK

8 SDT O DTMF encoder DATA

9 VDD +5V

10,11 X2, X1 X’tal

12 VSS GND

13 XT2 Open

14 XT1 GND

15 RESET CPU reset

16 TEST I Serial interface TEST

17 TRD I Modem TRD

18 RTM I Modem RTM

19 STD I DTMF decoder STD

20 EC2 O Shift register 2 (Control) CS

21 DT O Common DATA

22 ACK O DTMF decoder CLOCK

23 AVDD +5V

24 AVREF0 +5V

25 TI I QT/DQT IN

26 RSI I RSSI IN

27 ASQ I Analog squelch IN

28 UL I PLL UNLOCK

29 SD I DTMF decoder SD

30 RDT I Modem RDT

31 RSV2 I Reserved

32 IGN I Ignition IN

33 AVSS GND

34 TO O QT/DQT OUT

35 CP O PLL CLOCK

36 AVREF1 +5V

37 RXD2 I Acc RXD

38 TXD2 O Acc TXD

39 ES O Shift register (TX/RX) CS

Microprocessor : 784214GCXXX8EU (Control Unit IC516)

• Terminal function

Pin No. Pin name I/O Action

40 RXD1 I Serial interface RXD

41 TXD1 O Serial interface TXD

42 STB O Modem STB

43 EC1 O Shift registerl (Control) CS

44 EI O Shift register (Interface) CS

45 SEL I/O GE-STAR I/O

46 EPT I GE-STAR EPT

47 EMG O GE-STAR EMG

48~71 Flash ROM access port

72 VSS GND

73~74 Flash ROM access port

75 Flash ROM (4Mbit) access port

76 Not used.

77~78 Flash ROM access port

79 POF O Timed Power OFF.

80 Not used.

81 VDD +5V

82 EN2 O D/A converter (Interface) CS

83 CLK O EEPROM CLOCK

84 SDA I/O EEPROM DATA

85 RSV1 O Reserved

86 AI1 I Acc PF Input 1

87 AI2 I Acc PF Input 2

88 AI4 I Acc PF Input 4

89 AI3 I Acc PF Input 3

90 AI5 I Acc PF Input 5

91 2TN I 2tone pulse IN

92 KEY O TX power SW

93 SQ O Acc SQ OUT

L : BUSY, H : Not BUSY

94 TEST GND

95 AO1 O Acc PF Output 1

96 AO2 O Acc PF Output 2

97 AO3 O Acc PF Output 3

98 AO4 O Acc PF Output 4

99 1/2 I Deck 1/2

L : Deck 1, H : Deck 2

100 SFT O Beat shift

SEMICONDUCTOR DATA

TK-790/(B)/H(B)

Microprocessor : 78064GCXXX8EU (Display Unit IC4)

• Terminal function

Pin No. Pin name I/O Action

74 Not used

75 RXD I Serial interface RXD

76 TXD O Serial interface TXD

77 Not used

78 – GND

79 X2 – X’tal 4.19MHz

80 X1 – X’tal 4.19MHz

81 VDD – +5V

82,83 Not used

84 RST – Reset

85 END I Encoder data

86 K3 I [GR ] Key L : ON, H : OFF

87 K4 I [GR ] Key L : ON, H : OFF

88 ENI I Encoder interrupt

89 TEST I Serial interface test

90 AO2 O Programable AUX output B

91 AO1 O Programable AUX output A

92 AI2 I Programable AUX input B

93 AI1 I Programable AUX input A

94 BLC O MIC backlight ON/OFF

L : ON, H : OFF

95,96 Not used

97 DM I DTMF MIC key pad data input

98 HK I MIC hook L : ON, H : OFF

99 AVSS – GND

100 VOL I AF volume

Pin No. Pin name I/O Action

1 PTT I MIC PTT L : ON, H : OFF

2 K5 I [MON] key L : ON, H : OFF

3 K6 I [PF6] key L : ON, H : OFF

4 K7 I [PF1] key L : ON, H : OFF

5 K8 I [PF2] key (Full) L : ON, H : OFF

6 K9 I [PF3] key (Full) L : ON, H : OFF

7 K10 I [PF7] key (Full) L : ON, H : OFF

8 AVDD – +5V

9 AVREF – +5V

10 RED O TX LED (Red) L : ON, H : OFF

11 GRN O BUSY LED (Green) L : ON, H : OFF

12 E – GND

13 DM1 O Backlight (Dimmer)

14 DM2 O Backlight (Dimmer)

15 I Not used

16 K11 I [SCN] key (Full) L : ON, H : OFF

17 K12 I [PF8] key (Full) L : ON, H : OFF

18 K13 I [PF9] key (Full) L : ON, H : OFF

19 K1 I [PF4] key L : ON, H : OFF

20 K2 I [PF5] key L : ON, H : OFF

21 1/2 I HEAD 1/2 jumper

HEAD 1 : Jumper installed,

HEAD 2 : Jumper removed

22 B/F I Panel type Jumper

Basic panel : Jumper installed.

Full panel : Jumper removed

23~26 COM0~3 O LCD drive common 0~3

27 BIAS LCD drive bias

28~30 VLC0~2 LCD drive power suply

31 VSS GND

32~67 S0~35 O LCD drive segment 0~35

68 S36 O LCD drive segment 36 (Basic)

CE DOT matrix driver CE (Full)

69 S37 O LCD drive segment 37 (Basic)

CL DOT matrix driver CL (Full)

70 S38 O LCD drive segment 38 (Basic)

DI DOT matrix driver DI (Full)

71 S39 O LCD drive segment 39 (Basic)

DO I DOT matrix driver DO (Full)

72 SCK O EEPROM serial clock

73 SDT I/O EEPROM serial data

SEMICONDUCTOR DATA

Shift Register Output

• Shift register 1 on control unit (IC523)

Pin No. Port Name Action

4 Q1 PTO GE-STAR/Scrambler PTO

5 Q2 BC4 Scrambler BC4

6 Q3 BC3 Scrambler BC3

7 Q4 BC2 Scrambler BC2

14 Q5 AC Scrambler AC

13 Q6 BC1 Scrambler BC1

12 Q7 HR Acc HR

11 Q8 CMP Compander H : ON, L : OFF

TK-790/(B)/H(B)

Audio Power Amplifier

: TDA8561Q (Control Unit IC522)

• Terminal description

Pin No. Symbol Description

1 –INV1 Non-inverting input 1

2 GND (S) Signal ground

3 INV 2 Inverting input 2

4 RR Supply voltage ripple rejection

5 VP1 Supply voltage

6 OUT 1 Output 1

7 GND1 Power ground 1

8 OUT 2 Output 2

9 NC Not connected

10 OUT 3 Output 3

11 GND2 Power ground 2

12 OUT 4 Output 4

13 VP2 Supply voltage

14 MODE Mode select switch input

15 INV 3 Inverting input 3

16 VDIAG Diagnostic output

17 –INV 4 Non-inverting input 4

power stage

mute switch

18kΩ

kΩ

power stage

mute switch

18kΩ

kΩ

stand-by

switch

15kΩ

PROTECTIONS

thermal

short-circuit

stand-by

reference

voltage

mute

reference

voltage

mute

switch

6OUT1

8OUT2

power stage

mute switch

18kΩ

kΩ

power stage

mute switch

18kΩ

kΩ

×1

GND (S)

input

reference

voltage

GND1 GND2

513

OUT 4

OUT 3

–INV 1 1

INV 2 3

–INV 4

INV 3

MODE

DIAG

SEMICONDUCTOR DATA

• Shift register 2 on control unit (IC517)

Pin No. Port Name Action

4 Q1 MM MIC mute H : Mute, L : Unmute

5Q2AS

Audio line SW RX BPF←→DE-EMP

6 Q3 DS DET line SW DET←→RX BPF

7 Q4 AM1 Audio mute 1

14 Q5 RG1 Modem RG1

13 Q6 RG2 Modem RG2

12 Q7 MS

MOD line SW MIC AMP←→RX BPF

11 Q8 AM2 Audio mute 2

• Shift register on TX-RX (IC201)

Pin No. Port Name Action

4 Q1 STR TX/RX VCO SW

5 Q2 Not used

6 Q3 Not used

7 Q4 Not used

14 Q5 8R 8R SW

13 Q6 W/N

Wide/Narrow SW H : Narrow, L : Wide

12 Q7 Not used

11 Q8 Not used

• Block diagram

TK-790/(B)/H(B)

SEMICONDUCTOR DATA

Power Amplifier : M68702H (Final Unit IC1) TK-790/(B) K type

: M68702L (Final Unit IC1) TK-790(B) K2 type

• Equivalent circuit

1 : Input

2 : 1st stage power supply

3 : Final stage power supply

4 : Output

5 : Fin (Earth)

F.B.

Final Amplifier : 2SC2782 (Final Unit Q6, Q7) TK-790H(B)

• Absolute maximum ratings

Tc= 25°C unless otherwise noted

Symbol Parameter Conditiona Rating

VCBO Collector-base voltage 36V

VEBO Emitter-base voltage 4V

VCEO Collector-emitter voltage RBE = ∞16V

Ic Collector current 20A

Pc Collector dissipation 220W

Tj Junction temperature 175°C

Tstg Storage temperature –65 to 175°C

Flash ROM : AT29C020-90TI (Control Unit IC519)

• Terminal description

Pin Name Function

A0~A17 Addresses

CE Chip enable

OE Output enable

WE Write enable

I/O0~I/O7 Data inputs/outputs

NC No connect

OE, CE, AND WE

LOGIC

Y DECODER

X DECODER

DATA LATCH

INPUT/OUTPUT

BUFFERS

OPTIONAL BOOT

BLOCK (8K BYTES)

MAIN MEMORY

(240K BYTES)

OPTIONAL BOOT

BLOCK (8K BYTES)

Y-GATING

Address

input

Vcc

GND

Data inputs/outputs

I/O0~I/O7

• Block diagram

TK-790/(B)/H(B)

General : TK-790/(B)

Ref. No. Use/Function Operation/Condition

IC1 Power amplifier

General : TK-790H(B)

Ref. No. Use/Function Operation/Condition

IC1 TX drive amplifier

Q6,7 Final amplifier

Final Unit (X45-3560-10) : TK-790H(B)

Ref. No. Use/Function Operation/Condition

Q1 DC amplifier APC controller

Q2 DC switch

Q3 APC controller

Q4 DC amplifier APC controller

Q5 APC comparator APC controller

Q8 TX/RX switch On when RX

Q9 TX/RX switch ON when RX

Q10,11 DC switch

D1 Forward wave

rectification

D2 Reflected wave

rectification

D3 Combiner

D4,5 Surge absorption

D6 Voltage reference

D7 Protect of reverse

connection

TX-RX Unit (X57-5610-XX) (A/3)

-10 : TK-790/(B) K -11 : TK-790(B) K2 -12 : TK-790H(B) K

Ref. No. Use/Function Operation/Condition

IC101 FM IC 1, 2 : Oscillator (45.305MHz)

3 : Mixer output 4 : Vcc

5 : IF input (455kHz)

7 : Noise filter output

8 : Noise filter input

9 : DET output (AF OUT)

10 : Quad input

12 : RSSI output

16 : Input (44.85MHz)

IC201 Shift register

IC202 AVR Input : 8V Output : 5V

Ref. No. Use/Function Operation/Condition

IC203 AVR Input : SB Output : 9V

IC301 PLL IC 1 : CP 2 : DT 3 : EP

4 : Vss 5 : Fin 7 : Vcc

8 : REFin (16.8MHz)

14 : Charge pump output

18 : UL (“H” when lock)

20 : VDD (5V)

Q101 1st amplifier RX frequency

Q102 IF amplifier 44.85MHz

Q104

Mix local amplifier (RX frequency + 44.85)MHz

Q105 DC switch ON when wide

Q106 DC switch On when narrow

Q107 IF amplifier 44.85MHz

Q108 DC switch On when wide

Q109 SQL amplifier (Noise amplifier)

Q201

TX pre-drive amplifier

Q202 8T switch 8V when TX

Q203 8T switch On when TX

Q204

TX pre-drive amplifier

Q205 8R switch On when RX

Q206 8R switch 8V when RX

Q301 Ripple filter 8CL

Q302 Ripple filter 9CL

Q303,304

Loop filter

Q305 OSC RX-VCO

Q306 OSC TX-VCO

Q307 DC switch On when TX

Q308 DC switch On when RX

Q309 DC switch Off when TX

Q310 Buffer amplifier

Q311,312

Amplifier

D101 DC switch On when TX

D102 BPF tuning Vari-cap tuning

D103 Noise detector

D104,105

BPF tuning Vari-cap tuning

D106~109

IF switch Wide/Narrow

D201,202

TX pre-drive bias

D301 Frequency controller TX-VCO

D302 Frequency controller RX-VCO

D303 Frequency controller TX-VCO

D304 Frequency controller RX-VCO

D305 Modulator

D306 RF switch TX/RX

A101 DBM

DESCRIPTION OF COMPONENTS

TK-790/(B)/H(B)

Control Unit (X57-5610-XX) (B/3)

-10 : TK-790/(B) K -11 : TK-790(B) K2 -12 : TK-790H(B) K

Ref. No. Use/Function Operation/Condition

IC501 D FF

IC502 LPF

IC503 AVR Input : SB, Output : 8V

IC504 Audio processor

IC505 HPF/IDC

IC506 AVR Input : 8V, Output : 5V

IC508

Limiter/Buffer amplifier

IC509 Buffer amplifier

IC510

Summing amplifier/LPF

IC511 DTMF encoder

IC512 D/A converter

IC513

LPF/Summing amplifier

IC514 EEPROM

IC515 Analog switch

IC516 CPU

IC517 Shift register

IC518 Buffer amplifier

IC519 Flash ROM

IC520 NOR gate

IC521 Buffer amplifier/

Amplifier

IC522

Audio power amplifier

IC523 Shift register

IC524 Buffer amplifier/

De-emphasis

IC525 DTMF decoder

IC526 Compander amplifier

Q501 DC switch

Q502 DC switch On when 18V or more

Q503 DC switch On when the power switch on

Q504 Muting switch MIC mute

Q505 DC switch

Q506,507

DC switch Timed power off switch

Q509 DC switch Off when P/A

Q510 DC switch Off when EXT SP

Q511 DC switch Off when INT SP

Q512 DC switch Off when RX busy

Q513 DC switch

Q514 Muting switch On when AF mute

Q516,517

DC switch On when on signalling code

Q518 DC switch

On when push the power switch

Q519 Power switch On when the power switch on

Q520 DC switch On when horn alert

Q522 Beat shift switch On when beat shift

DESCRIPTION OF COMPONENTS

Ref. No. Use/Function Operation/Condition

Q523 DC switch Serial data inverter

Q524 DC switch Serial data transmitter

Q525 DC switch

Q526,527

DC switch On when compander on

Q528,529

DC switch On when compander off

Q530~532

DC switch On when compander on

Q533~540

DC switch On when output port on

Q541 DC switch On when timed power off

Q542,543

DC switch IGN switch

Q544 DC switch Timed power off switch

D501 Voltage reference Protection of high voltage

D502 Reverse current

prevention

D503 Surge absorption

D504 Voltage reference

D505,506

DC switch

D507 Voltage reference

D508 DCswitch

D511 DC switch

D512 Reverse current

prevention

D513~517

Surge absorption

D519 Surge absorption

D521 Surge absorption

D523,524

Surge absorption

D526,527

Surge absorption

D528,529

Reverse current

prevention

Final Unit (X57-5610-XX) (C/3)

-10 : TK-790/(B) K -11 : TK-790(B) K2

Ref. No. Use/Function Operation/Condition

Q1 DC amplifier APC controller

Q2 APC controller

Q3,4 DC switch

Q5 APC comparator APC controller

Q6 DC switch

D1 Protection of

reverse connection

D2 Surge absorption

D3,4 ANT switch

D5 Forward wave

rectification

D6 Reflected wave

rectification

TK-790/(B)/H(B)

Display Unit (X54-3190-20) : KCH-10

Ref. No. Use/Function Operation/Condition

IC1 AVR Input : SB Output : 5V

IC2 Reset

IC3 EEPROM

IC4 CPU/LCD driver

Q1 9V AVR

Q3 DC switch Dimmer “Hi”, “Low” : ON

Q4 DC switch , key lighting : ON

Q5 DC switch Dimmer “Hi”, “Mid” : ON

Q6 DC switch Dimmer “Hi”, “Low” : ON

Q7 DC switch Dimmer “Hi”, “Mid” : ON

Q9 DC switch “PF1”, “PF2”, “PF3” key

lighting : ON

Q11 DC switch “PF4”, “PF5” key lighting : ON

Q12,13 TRD switch

Q14,15 DC switch On when output port on

D1,2 Surge absorption

D5 Voltage reference

D6~11 LCD backlight

D12 BUSY LED

D13 TX LED

D16,17 Surge absorption

D19~21 Surge absorption

D24 DC switch Key lighting : ON

D25 DC switch

DESCRIPTION OF COMPONENTS

Display Unit (X54-3200-20) : KCH-11

Ref. No. Use/Function Operation/Condition

IC1 AVR Input : SB Output : 5V

IC2 Reset

IC3 EEPROM

IC4 CPU

Q1 9V AVR

Q2 DC switch , key lighting : ON

Q3 DC switch Dimmer “Hi”, “Low” : ON

Q4 DC switch “MON”, “PF6”, “PF7” key

lighting : ON

Q5 DC switch “PF1”, “PF2”, “PF3” key

lighting : ON

Q6 DC switch Dimmer “Hi”, “Mid” : ON

Q7 DC switch “SCN”, “PF8”, “PF9” key

lighting : ON

Q8 DC switch “PF4”, “PF5” key lighting : ON

Q9,10 TRD switch

Q14,15 DC switch On when output port on

D1,2 Surge absorption

D5 Voltage reference

D6 BUSY LED

D7 TX LED

D11,12 Surge absorption

D14~16 Surge absorption

D18 DC switch Key lighting : ON

D19 DC switch

TK-790/(B)/H(B)

PARTS LIST

✽ New Parts. indicates safety critical components.

Parts without Parts No. are not supplied.

Les articles non mentionnes dans le Parts No. ne sont pas fournis.

Teile ohne Parts No. werden nicht geliefert.

L: Scandinavia K: USA P: Canada

Y: PX (Far East, Hawaii) T: England E: Europe

Y: AAFES (Europe) X: Australia M: Other Areas

TK-790

TK-790(B)

New

Desti-

parts

nation

Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

Ref. No.

Address

Parts No. Description

1 3A A01-2161-02 CABINET (UPPER)

2 1A A01-2162-02 CABINET (LOWER)

32B✽A10-1388-11 CHASSIS

42A✽A62-0606-13 PANEL ASSY (KCH-10)

6 3A,3B B42-2455-04 STICKER (M4X8MAX)

7 1J B46-0470-00 WARRANTY CARD ACSY

81J✽B62-0970-10 INSTRUCTION MANUAL

-✽B72-1450-24 MODEL NAME PLATE

11 2B E04-0167-05 RF COAXIAL PECEPTACLE (M)

12 1I ✽E30-3318-15 DC CORD ASSY ACSY

13 2A E31-3269-05

LEAD WIRE WITH MINIPIN PLUG (RA/DO)

14 2B E37-0708-05

LEAD WIRE WITH CONNECTOR (ACC:9P)

15 1B E37-0728-05

LEAD WIRE WITH CONNECTOR (DC:2P)

16 1B,2I E37-0733-05 SHORT PLUG (SP) ACSY

17 2B ✽E37-0772-15

LEAD WIRE WITH CONNECTOR (D-SUB:25P)

18 3A E37-0776-05 FLAT CABLE (CONT-TX:18P)

- E37-0787-05

LEAD WIRE WITH CONNECTOR (KCH-10)

21 2I F05-1537-05 FUSE (BLADE) (15A/32V) ACSY

23 2B F09-0445-05 CAP (D-SUB)

24 1B F10-1479-03 SHIELDING PLATE (FINAL)

22 2I F29-0472-04 INSULATING COVER ACSY

26 2A G02-0599-04 FLAT SPRING (APC)

27 3A G02-0709-04 FLAT SPRING (AUDIO AMP)

28 3A G02-0715-04 FLAT SPRING (AVR)

29 2B G53-0712-03 PACKING (DC,ACC)

- G53-0838-03 PACKING (KCH-10:PANEL ASSY)

- G53-0839-14 PACKING (KCH-10:SP)

32 3B G53-0869-03 PACKING (CABINET UPPER)

33 1A G53-0870-03 PACKING (CABINET LOWER)

-✽G53-1523-04 PACKING (KCH-10:VOL)

36 2J H10-6621-02 POLYSTYRENE FOAMED FIXTURE

35 1J H11-0896-04 POLYSTYRENE FOAMED BOARD

38 1I H12-1403-04 PACKING FIXTURE

39 2J H13-1066-04 CARTON BOARD

40 2I H25-0029-04 PROTECTION BAG (60/110/0.07)

42 2I H25-0103-04 PROTECTION BAG (125/250/0.07)

43 2I H25-0117-04 PROTECTION BAG (80/250/0.07)

44 1J H25-0194-04 PROTECTION BAG (280/400/0.07)

41 2I ✽H25-2063-04 PROTECTION BAG (80/120/0.03)

45 3J H52-1227-02 ITEM CARTON CASE

46 2I J19-1584-05 HOLDER (MIC) ACSY

47 1B J21-8346-04 HARDWARE FIXTURE (DC,ACC)

-✽J21-8417-04

HARDWARE FIXTURE (KCH-10:MIC CONNECTOR)

48 2I J29-0422-13 BRACKET ACSY

- J39-0625-04 SPACER (KCH-10:TX-BUSY)

50 2I J61-0307-05 BAND ACSY

- K29-4664-04 KNOB (KCH-10:VOL,UP/DOWN)

53 2I K29-4704-04 KNOB ACSY

- K29-5251-12 KEY TOP (KCH-10)

55 2I K29-5276-03 KNOB ACSY

56 2I K29-5277-03 KNOB ACSY

57 2I K29-5305-03 KNOB ACSY

TK-790

TK-790(B)

A 2B N09-2292-05 HEXAGON HEAD SCREW

B 2A,2B N32-3006-46 FLAT HEAD MACHINE SCREW

C 1A,3B N33-3006-45 OVAL HEAD MACHINE SCREW

D 1A,2A N35-3006-46 BINDING HEAD MACHINE SCREW

E 2B N67-3008-46 PAN HEAD SEMS SCREW W

- N87-2605-46

BRAZIER HEAD TAPTITE SCREW (KCH-10)

G 2A,3B N87-2606-46 BRAZIER HEAD TAPTITE SCREW

- N87-2608-46

BRAZIER HEAD TAPTITE SCREW (KCH-10)

J 1A N87-2612-46 BRAZIER HEAD TAPTITE SCREW

- N87-3006-46

BRAZIER HEAD TAPTITE SCREW (KCH-10)

L 1B,2B N87-3008-46 BRAZIER HEAD TAPTITE SCREW

59 2I N99-0321-05 SCREW SET ACSY

- T07-0265-05 SPEAKER (KCH-10)

62 1I ✽T91-0587-25 MICROPHONE (KMC-27) ACSY

1 3A A01-2161-02 CABINET (UPPER)

2 1A A01-2162-02 CABINET (LOWER)

32B✽A10-1388-11 CHASSIS

6 3A,3B B42-2455-04 STICKER (M4X8 MAX)

7 1J B46-0470-00 WARRANTY CARD ACSY

81J✽B62-0970-10 INSTRUCTION MANUAL

-✽B72-1450-24 MODEL NAME PLATE K

-✽B72-1452-24 MODEL NAME PLATE K2

11 2B E04-0167-05 RF COAXIAL PECEPTACLE (M)

13 2A E31-3269-05

LEAD WIRE WITH MINIPIN PLUG (RA/DO)

14 2B E37-0708-05

LEAD WIRE WITH CONNECTOR (ACC:9P)

15 1B E37-0728-05

LEAD WIRE WITH CONNECTOR (DC:2P)

16 1B,2I E37-0733-05 SHORT PLUG (SP) ACSY

17 2B ✽E37-0772-15

LEAD WIRE WITH CONNECTOR (D-SUB:25P)

18 3A E37-0776-05 FLAT CABLE (CONT-TX:18P)

23 2B F09-0445-05 CAP (D-SUB)

24 1B F10-1479-03 SHIELDING PLATE (FINAL)

22 2I F29-0472-04 INSULATING COVER ACSY

26 2A G02-0599-04 FLAT SPRING (APC)

27 3A G02-0709-04 FLAT SPRING (AUDIO AMP)

28 3A G02-0715-04 FLAT SPRING (AVR)

29 2B G53-0712-03 PACKING (DC,ACC)

32 3B G53-0869-03 PACKING (CABINET UPPER)

33 1A G53-0870-03 PACKING (CABINET LOWER)

36 2J H10-6621-02 POLYSTYRENE FOAMED FIXTURE

37 2J H11-0892-04 POLYSTYRENE FOAMED BOARD

35 1J H11-0896-04 POLYSTYRENE FOAMED BOARD

38 1I H12-1403-04 PACKING FIXTURE

39 2J H13-1066-04 CARTON BOARD

42 2I H25-0103-04 PROTECTION BAG (125/250/0.07)

44 1J H25-0194-04 PROTECTION BAG (280/400/0.07)

41 2I ✽H25-2063-04 PROTECTION BAG (80/120/0.03)

45 3J H52-1228-12 ITEM CARTON CASE

47 1B J21-8346-04 HARDWARE FIXTURE (DC,ACC)

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TK-790(B)

TX-RX UNIT (X57-5610-XX) : TK-790/(B)

50 2I J61-0307-05 BAND ACSY

A 2B N09-2292-05 HEXAGON HEAD SCREW

C 1A,3B N33-3006-45 OVAL HEAD MACHINE SCREW

D 1A,2A N35-3006-46 BINDING HEAD MACHINE SCREW

E 2B N67-3008-46 PAN HEAD SEMS SCREW W

G 2A,3B N87-2606-46 BRAZIER HEAD TAPTITE SCREW

J 1A N87-2612-46 BRAZIER HEAD TAPTITE SCREW

L 1B,2B N87-3008-46 BRAZIER HEAD TAPTITE SCREW

59 2I N99-0365-05 SCREW SET ACSY

C1 CK73GB1H102K CHIP C 1000PF K

C2 C92-0747-05 ELECTRO 33UF 25WV

C3 C92-0721-05 ELECTRO 330UF 25WV

C4 CK73FB1E104K CHIP C 0.10UF K

C5 CK73FB1H472K CHIP C 4700PF K

C6 C92-0721-05 ELECTRO 330UF 25WV

C7 CK73FB1H102K CHIP C 1000PF K

C8 CK73GB1H102K CHIP C 1000PF K

C9 C92-0747-05 ELECTRO 33UF 25WV

C10 CK73FB1E104K CHIP C 0.10UF K

C11 CK73FB1E103K CHIP C 0.010UF K

C12 CK73GB1H102K CHIP C 1000PF K

C13 C92-0724-05 ELECTRO 10UF 50WV

C14 CK73FB1H472K CHIP C 4700PF K

C15 CK73FB1H102K CHIP C 1000PF K

C16 C93-0561-05 CHIP C 12PF J

C17 C92-0725-05 ELECTRO 10UF 35WV

C18 C92-0720-05 ELECTRO 100UF 25WV

C19 C93-0562-05 CHIP C 15PF J

C20,21 CK73GB1H102K CHIP C 1000PF K

C22 C93-0563-05 CHIP C 18PF J K

C22 C93-0564-05 CHIP C 22PF J K2

C23,24 CK73GB1H102K CHIP C 1000PF K

C25 CK73FB1H102K CHIP C 1000PF K

C26 C93-0603-05 CHIP C 1000PF K

C27,28 CK73GB1H102K CHIP C 1000PF K

C29 C93-0562-05 CHIP C 15PF J K

C29 C93-0563-05 CHIP C 18PF J K2

C30 C93-0566-05 CHIP C 33PF J

C31 CC73FCH1H150J CHIP C 15PF J

C32 CC73GCH1H471J CHIP C 470PF J

C33 C93-0560-05 CHIP C 10PF D K

C33 C93-0563-05 CHIP C 18PF J K2

C34 CK73GB1H102K CHIP C 1000PF K

C36 CC73FCH1H180J CHIP C 18PF J K

C36 CC73FCH1H220J CHIP C 22PF J K2

C37 CK73FB1H102K CHIP C 1000PF K

C38,39 CK73GB1H102K CHIP C 1000PF K

C40 C93-0563-05 CHIP C 18PF J K2

C40 C93-0564-05 CHIP C 22PF J K

C41 C93-0557-05 CHIP C 7.0PF D K

C41 C93-0560-05 CHIP C 10PF D K2

C42 C93-0561-05 CHIP C 12PF J K

C42 C93-0563-05 CHIP C 18PF J K2

C101 CK73GB1H103K CHIP C 0.010UF K

C102,103 CC73GCH1H220J CHIP C 22PF J

C104 CC73GCH1H180J CHIP C 18PF J

C105 CC73GCH1H101J CHIP C 100PF J

C106 CK73GB1H103K CHIP C 0.010UF K

C107 CC73GCH1H101J CHIP C 100PF J

C108 CC73GCH1H100D CHIP C 10PF D

C110 CC73GCH1H100D CHIP C 10PF D K

C110 CC73GCH1H150J CHIP C 15PF J K2

C111 CC73GCH1H020C CHIP C 2.0PF C

C112 CK73GB1H103K CHIP C 0.010UF K

C113 CK73GB1H102K CHIP C 1000PF K

C114 CC73GCH1H100D CHIP C 10PF D K

C114 CC73GCH1H150J CHIP C 15PF J K2

C116 CC73GCH1H020C CHIP C 2.0PF C

C117 CC73GCH1H680J CHIP C 68PF J

C118 CC73GCH1H080D CHIP C 8.0PF D K

C118 CC73GCH1H120J CHIP C 12PF J K2

C119 CC73GCH1H180J CHIP C 18PF J

C120 CC73GCH1H120J CHIP C 12PF J

C121 CC73GCH1H101J CHIP C 100PF J

C123 CC73GCH1H221J CHIP C 220PF J

C124 CC73GCH1H330J CHIP C 33PF J

C125 CK73GB1H103K CHIP C 0.010UF K

C126 CC73GCH1H150J CHIP C 15PF J

C127 CC73GCH1H151J CHIP C 150PF J

C128 CC73GCH1H030C CHIP C 3.0PF C

C129 CC73GCH1H101J CHIP C 100PF J

C130 CC73GCH1H270J CHIP C 27PF J

C131 CK73GB1H102K CHIP C 1000PF K

C132 CC73GCH1H030C CHIP C 3.0PF C

C133 CC73GCH1H270J CHIP C 27PF J

C134,135 CK73GB1H103K CHIP C 0.010UF K

C138-140 CC73GCH1H030C CHIP C 3.0PF C

C141 CC73GCH1H040C CHIP C 4.0PF C

C143 CK73GB1H102K CHIP C 1000PF K

C144 CC73GCH1H101J CHIP C 100PF J

C145,146 CC73GCH1H030C CHIP C 3.0PF C

C147 CC73FCH1H090D CHIP C 9.0PF D K

C147 CC73FCH1H120J CHIP C 12PF J K2

C148 CK73GB1H102K CHIP C 1000PF K

C151,152 CK73GB1H103K CHIP C 0.010UF K

C153,154 CK73GB1H102K CHIP C 1000PF K

C155 CC73GCH1H100D CHIP C 10PF D

C156 CK73FB1E104K CHIP C 0.10UF K

C157 CC73GCH1H090D CHIP C 9.0PF D

C158 CC73GCH1H101J CHIP C 100PF J

C159 CC73GCH1H220J CHIP C 22PF J

C160 CK73GB1H102K CHIP C 1000PF K

C161-163 CK73GB1H103K CHIP C 0.010UF K

C165 C92-0560-05 CHIP-TAN 10UF 6.3WV

C166 CC73GCH1H080D CHIP C 8.0PF D

C167 CC73GCH1H270J CHIP C 27PF J

C168 CK73FB1E104K CHIP C 0.10UF K

C169 CK73GB1H103K CHIP C 0.010UF K

C170,171 CC73GCH1H221J CHIP C 220PF J

C172 CK73GB1H472K CHIP C 4700PF K

C173 CK73GB1H103K CHIP C 0.010UF K

C174 CK73FB1E104K CHIP C 0.10UF K

C175 CK73GB1C333K CHIP C 0.033UF K

C176 C92-0003-05 CHIP-TAN 0.47UF 25WV

TX-RX UNIT (X57-5610-XX) -10 : TK-790/(B) K -11 : TK-790(B) K2

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-XX) : TK-790/(B)

C177 CK73GB1H102K CHIP C 1000PF K

C178 CK73GB1H103K CHIP C 0.010UF K

C179-182 CC73GCH1H470J CHIP C 47PF J

C183-185 CC73GCH1H150J CHIP C 15PF J

C186 CC73GCH1H270J CHIP C 27PF J K2

C186 CC73GCH1H330J CHIP C 33PF J K

C187,188 CC73GCH1H120J CHIP C 12PF J

C189 CK73GB1E223K CHIP C 0.022UF K

C190 CK73GB1H102K CHIP C 1000PF K

C191 CK73GB1E223K CHIP C 0.022UF K

C192 CK73FB1C334K CHIP C 0.33UF K

C193 CK73GB1H102K CHIP C 1000PF K

C194 C92-0560-05 CHIP-TAN 10UF 6.3WV

C195 CK73GB1H102K CHIP C 1000PF K

C201 CK73GB1H471K CHIP C 470PF K

C202 CC73GCH1H101J CHIP C 100PF J

C203-205 CK73GB1H102K CHIP C 1000PF K

C206 CK73GB1H103K CHIP C 0.010UF K

C207 C92-0044-05 CHIP-ELE 47UF 10WV

C208 CK73GB1H102K CHIP C 1000PF K

C209 C92-0023-05 CHIP-ELE 1.0UF 50WV

C210 CK73GB1H102K CHIP C 1000PF K

C211 CC73GCH1H270J CHIP C 27PF J

C213,214 CK73GB1H102K CHIP C 1000PF K

C215 CK73FB1E104K CHIP C 0.10UF K

C216 CK73GB1C473K CHIP C 0.047UF K

C217 C92-0008-05 CHIP-TAN 3.3UF 16WV

C218,219 CK73GB1H102K CHIP C 1000PF K

C220 CC73FCH1H220J CHIP C 22PF J

C221 CK73GB1H102K CHIP C 1000PF K

C222 C92-0044-05 CHIP-ELE 47UF 10WV

C223 CK73GB1H102K CHIP C 1000PF K

C224 CK73FB1E104K CHIP C 0.10UF K

C225-227 CK73GB1H102K CHIP C 1000PF K

C301,302 CK73GB1H102K CHIP C 1000PF K

C303 CK73GB1H103K CHIP C 0.010UF K

C304 CK73FB1E104K CHIP C 0.10UF K

C305 CK73GB1H102K CHIP C 1000PF K

C306,307 CK73GB1H103K CHIP C 0.010UF K

C308,309 CK73FB1E104K CHIP C 0.10UF K

C310 C92-0633-05 CHIP-TAN 22UF 10WV

C311 C90-4016-05 ELECTRO 47UF 16WV

C312 C92-0001-05 CHIP C 0.1UF 35WV

C313 C92-1341-05 ELECTRO 100UF 16WV

C314 C90-4016-05 ELECTRO 47UF 16WV

C315 CC73GCH1H100D CHIP C 10PF D K

C315 CC73GCH1H150J CHIP C 15PF J K2

C316,317 CK73GB1H103K CHIP C 0.010UF K

C318,319 C92-0514-05 CHIP-TAN 2.2UF 10WV

C320 CK73FB1E224K CHIP C 0.22UF K

C321 C92-0003-05 CHIP-TAN 0.47UF 25WV

C322 CK73GB1H102K CHIP C 1000PF K

C323 CC73GCH1H240J CHIP C 24PF J K

C323 CC73GCH1H390J CHIP C 39PF J K2

C324 CK73GB1H102K CHIP C 1000PF K

C325 CC73GCH1H360J CHIP C 36PF J K

C325 CC73GCH1H390J CHIP C 39PF J K2

C326 CC73GCH1H050C CHIP C 5.0PF C K

C326 CC73GCH1H070D CHIP C 7.0PF D K2

C327 CC73GCH1H470J CHIP C 47PF J

C328 CC73GCH1H180G CHIP C 18PF G K

C328 CC73GCH1H270J CHIP C 27PF J K2

C329 CK73GB1H102K CHIP C 1000PF K

C330 CC73GCH1HR75C CHIP C 0.75PF C

C331 CC73GCH1H150J CHIP C 15PF J K

C331 CC73GCH1H180J CHIP C 18PF J K2

C332 CK73FB1C474K CHIP C 0.47UF K

C333 CC73GCH1H150J CHIP C 15PF J K

C333 CC73GCH1H180J CHIP C 18PF J K2

C334,335 CC73GCH1H120J CHIP C 12PF J K

C334,335 CC73GCH1H150J CHIP C 15PF J K2

C336 CC73GCH1H150J CHIP C 15PF J K

C336 CC73GCH1H180J CHIP C 18PF J K2

C337-339 CK73GB1H102K CHIP C 1000PF K

C340,341 CC73GCH1H020C CHIP C 2.0PF C

C342,343 CK73GB1H102K CHIP C 1000PF K

C344 CC73GCH1H100D CHIP C 10PF D K

C344 CC73GCH1H150J CHIP C 15PF J K2

C345-349 CK73GB1H102K CHIP C 1000PF K

C350 CC73GCH1H470J CHIP C 47PF J

C351-355 CK73GB1H102K CHIP C 1000PF K

C356 C92-0606-05 CHIP-TAN 4.7UF 10WV

C357 C92-0560-05 CHIP-TAN 10UF 6.3WV

C358 CK73GB1H102K CHIP C 1000PF K

C359 CC73GCH1H100D CHIP C 10PF D K

C359 CC73GCH1H150J CHIP C 15PF J K2

C360 CC73GCH1H050C CHIP C 5.0PF C

C361 CK73FB1C474K CHIP C 0.47UF K

C362 CC73GCH1H270J CHIP C 27PF J

C363,364 CC73GCH1H030C CHIP C 3.0PF C

C365,366 CC73GCH1H150J CHIP C 15PF J

C370 CK73GB1H102K CHIP C 1000PF K

C371 CK73FB1H473K CHIP C 0.047UF K

C501 CC73GCH1H101J CHIP C 100PF J

C524 CK73GB1H102K CHIP C 1000PF K

C525 CK73FB1E683K CHIP C 0.068UF K

C526,527 CK73GB1H471K CHIP C 470PF K

C528 CC73GCH1H101J CHIP C 100PF J

C529 C92-0585-05 CHIP-TAN 4.7UF 16WV

C530 CK73GB1E123K CHIP C 0.012UF K

C531 C92-0560-05 CHIP-TAN 10UF 6.3WV

C532 CK73GB1H222K CHIP C 2200PF K

C533 C92-0560-05 CHIP-TAN 10UF 6.3WV

C534 CK73FB1E104K CHIP C 0.10UF K

C535 C92-0560-05 CHIP-TAN 10UF 6.3WV

C536,537 CK73FB1E104K CHIP C 0.10UF K

C538 CK73GB1E223K CHIP C 0.022UF K

C539 CC73GCH1H470J CHIP C 47PF J

C540 CK73FB1E104K CHIP C 0.10UF K

C541 CK73GB1H102K CHIP C 1000PF K

C542 CK73FB1E104K CHIP C 0.10UF K

C543 CK73GB1H102K CHIP C 1000PF K

C544 CC73GCH1H121J CHIP C 120PF J

C545 CK73GB1E103K CHIP C 0.010UF K

C546 CK73FB1E104K CHIP C 0.10UF K

C547 CK73GB1E223K CHIP C 0.022UF K

C548 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C549 CK73GB1H222K CHIP C 2200PF K

C550 CK73FB1E104K CHIP C 0.10UF K

C551 CK73FB1E333K CHIP C 0.033UF K

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-XX) : TK-790/(B)

C552 CC73GCH1H470J CHIP C 47PF J

C553,554 CK73FB1E104K CHIP C 0.10UF K

C555 CK73GB1H102K CHIP C 1000PF K

C557 CK73GB1E223K CHIP C 0.022UF K

C558 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C559 C92-0036-05 CHIP-ELE 4.7UF 16WV

C562 CK73GB1E103K CHIP C 0.010UF K

C563 CK73GB1H102K CHIP C 1000PF K

C565 C92-0003-05 CHIP-TAN 0.47UF 25WV

C566 CC73GCH1H100D CHIP C 10PF D

C567 CK73GB1E223K CHIP C 0.022UF K

C568 CK73GB1H102K CHIP C 1000PF K

C570 C92-0036-05 CHIP-ELE 4.7UF 16WV

C571 C92-0585-05 CHIP-TAN 4.7UF 16WV

C572,573 CC73GCH1H030C CHIP C 3.0PF C

C574 CK73GB1H472K CHIP C 4700PF K

C575 C92-0628-05 CHIP-TAN 10UF 10WV

C576 CC73GCH1H470J CHIP C 47PF J

C578 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C579 CK73GB1H472K CHIP C 4700PF K

C580-582 CK73GB1H102K CHIP C 1000PF K

C583 C92-0546-05 CHIP-TAN 68UF 6.3WV

C584 CK73FB1E104K CHIP C 0.10UF K

C585 CC73FCH1H751J CHIP C 750PF J

C586 CC73GCH1H180J CHIP C 18PF J

C587 CK73GB1H122K CHIP C 1200PF K

C588 CC73GCH1H070D CHIP C 7.0PF D

C589 CC73GCH1H181J CHIP C 180PF J

C590 CK73GB1H332K CHIP C 3300PF K

C591 CC73GCH1H180J CHIP C 18PF J

C592 CK73GB1H102K CHIP C 1000PF K

C593 C92-0633-05 CHIP-TAN 22UF 10WV

C594 CK73GB1E103K CHIP C 0.010UF K

C595-597 CK73GB1H102K CHIP C 1000PF K

C598,599 CK73FB1E104K CHIP C 0.10UF K

C600 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C601 CK73GB1H102K CHIP C 1000PF K

C602 CK73GB1H562K CHIP C 5600PF K

C603 CK73GB1H102K CHIP C 1000PF K

C604,605 CK73GB1H562K CHIP C 5600PF K

C606 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C607 CK73GB1H102K CHIP C 1000PF K

C608 CK73GB1H332J CHIP C 3300PF J

C609 CK73GB1H272J CHIP C 2700PF J

C610 CK73FB1E104K CHIP C 0.10UF K

C611 CK73GB1H272J CHIP C 2700PF J

C612 C92-1341-05 ELECTRO 100UF 16WV

C613 C92-0040-05 CHIP-ELE 47UF 16WV

C614 CK73GB1H102K CHIP C 1000PF K

C615 CK73GB1H272J CHIP C 2700PF J

C616 CK73GB1E103K CHIP C 0.010UF K

C617 CK73FB1E104K CHIP C 0.10UF K

C618 CK73GB1H272J CHIP C 2700PF J

C619 C92-0721-05 ELECTRO 330UF 25WV

C620 CK73GB1E103K CHIP C 0.010UF K

C621 CK73FB1E104K CHIP C 0.10UF K

C622 CK73GB1H102K CHIP C 1000PF K

C623 C92-0040-05 CHIP-ELE 47UF 16WV

C624 CK73GB1H102K CHIP C 1000PF K

C625 CK73GB1E103K CHIP C 0.010UF K

C626 C92-0004-05 CHIP-TAN 1.0UF 16WV

C627,628 CK73FB1E104K CHIP C 0.10UF K

C629,630 CK73GB1H102K CHIP C 1000PF K

C631 CC73GCH1H101J CHIP C 100PF J

C632-639 CK73GB1H102K CHIP C 1000PF K

C640 C92-0560-05 CHIP-TAN 10UF 6.3WV

C641,642 CK73FB1E104K CHIP C 0.10UF K

C666-680 CC73GCH1H101J CHIP C 100PF J

C681 CK73GB1H102K CHIP C 1000PF K

C682,683 CC73GCH1H101J CHIP C 100PF J

C684 CK73GB1H102K CHIP C 1000PF K

C685 CC73GCH1H101J CHIP C 100PF J

C686 CK73GB1H102K CHIP C 1000PF K

C687 CK73GB1E103K CHIP C 0.010UF K

C688,689 CC73GCH1H101J CHIP C 100PF J

C690 CK73FB1E104K CHIP C 0.10UF K

C691,692 CC73GCH1H101J CHIP C 100PF J

C693 CK73GB1E103K CHIP C 0.010UF K

C694 C92-0633-05 CHIP-TAN 22UF 10WV

C695 CC73GCH1H101J CHIP C 100PF J

C696 C92-0628-05 CHIP-TAN 10UF 10WV

C697 CK73GB1E103K CHIP C 0.010UF K

C698-700 C92-0560-05 CHIP-TAN 10UF 6.3WV

C701 C92-0566-05 CHIP-TAN 10UF 6.3WV

C703-705 CK73FB1E104K CHIP C 0.10UF K

C706 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C707 CC73GCH1H560J CHIP C 56PF J

C708 CK73FB1E104K CHIP C 0.10UF K

C709 CC73GCH1H560J CHIP C 56PF J

C710 CK73GB1E123K CHIP C 0.012UF K

C711 CC73GCH1H101J CHIP C 100PF J

C712 CK73GB1E473J CHIP C 0.047UF J

TC301,302 C05-0393-05 CERAMIC TRIMMER CAP (8PF)

CN1 E04-0154-05 PIN SOCKET

CN2 E23-0902-05 TERMINAL

CN3 E04-0154-05 PIN SOCKET

CN4 E23-1118-05 TERMINAL

CN101 E04-0154-05 PIN SOCKET

CN102,103 E40-5538-05 PIN ASSY

CN104 E04-0154-05 PIN SOCKET

CN201 E40-5752-05 PIN ASSY

CN202 E40-5978-05 FLAT CABLE CONNECTOR

CN203 E04-0154-05 PIN SOCKET

CN501 E40-5703-05 PIN ASSY

CN504 E40-5661-05 PIN ASSY SOCKET

CN505 E40-5960-05 PIN ASSY

CN506 E40-5066-05 PIN ASSY

CN507 E40-5751-05 PIN ASSY

CN508 E40-5701-05 PIN ASSY

W1 E37-0705-05 LEAD WIRE WITH CONNECTOR

W2 E37-0704-05 LEAD WIRE WITH CONNECTOR

W501 E37-0707-05 LEAD WIRE WITH CONNECTOR

A102 F10-2278-04 SHIELDING PLATE (MCF)

F501 F53-0128-05 FUSE (0.5A)

F502 F53-0108-05 FUSE (1.8A)

CF101 L72-0916-05 CERAMIC FILTER (455KHZ)

CF102 L72-0939-05 CERAMIC FILTER (455KHZ)

CF103 L72-0916-05 CERAMIC FILTER (455KHZ)

CF104 L72-0939-05 CERAMIC FILTER (455KHZ)

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-XX) : TK-790/(B)

L1 L34-4519-05 AIR-CORE COIL

L2 L34-4523-05 AIR-CORE COIL

L3-5 L34-4520-05 AIR-CORE COIL

L6 L34-4523-05 AIR-CORE COIL

L7 L34-4519-05 AIR-CORE COIL

L8 L40-1585-48 SMALL FIXED INDUCTOR (150NH)

L101 L40-8272-48 SMALL FIXED INDUCTOR

L102 L40-3382-48 SMALL FIXED INDUCTOR

L103 L40-3372-48 SMALL FIXED INDUCTOR

L104 L40-3382-48 SMALL FIXED INDUCTOR

L105 L40-8272-48 SMALL FIXED INDUCTOR

L107 L40-2782-48 SMALL FIXED INDUCTOR

L109 L40-6885-34 SMALL FIXED INDUCTOR (680NH)

L110-112 L34-4080-05 COIL

L114,115 L40-3375-34 SMALL FIXED INDUCTOR (33NH)

L117 L34-4527-05 COIL

L118,119 L34-4526-05 COIL

L120 L34-4527-05 COIL

L121 L40-3975-34 SMALL FIXED INDUCTOR (39NH) K

L121 L40-4775-34 SMALL FIXED INDUCTOR (47NH) K2

L122 L34-4526-05 COIL

L123 L34-4527-05 COIL

L126 L40-1095-34 SMALL FIXED INDUCTOR (1UH)

L127 L34-4530-05 COIL

L128 L40-1885-34 SMALL FIXED INDUCTOR (180NH)

L129 L40-1281-37 SMALL FIXED INDUCTOR (0.120UH)

L130 L40-3381-37 SMALL FIXED INDUCTOR (0.330UH)

L131 L40-3375-34 SMALL FIXED INDUCTOR (33NH)

L132,133 L40-2772-48 SMALL FIXED INDUCTOR K

L132,133 L40-3372-48 SMALL FIXED INDUCTOR K2

L134 L40-1095-34 SMALL FIXED INDUCTOR (1UH)

L135,136 L40-1005-34 SMALL FIXED INDUCTOR (10UH)

L201 L40-6875-34 SMALL FIXED INDUCTOR (68NH)

L202 L40-8271-34 SMALL FIXED INDUCTOR (82NH)

L301-304 L33-1268-15 SMALL FIXED INDUCTOR

L305,306 ✽L34-4592-05 AIR-CORE COIL

L307-309 L33-1268-15 SMALL FIXED INDUCTOR

L310 L40-8271-34 SMALL FIXED INDUCTOR (82NH)

L311 L40-1085-34 SMALL FIXED INDUCTOR (100NH)

L312 L92-0148-05 FERRITE CHIP

L313,314 L40-3975-34 SMALL FIXED INDUCTOR (39NH)

L501,502 L40-1005-34 SMALL FIXED INDUCTOR (10UH)

X101 L77-1736-05 CRYSTAL RESONATOR (45.305MHZ)

X301 ✽L77-1798-05 VCXO (16.8MHZ)

X501 L77-1708-05 CRYSTAL RESONATOR (3.579545MHZ)

X502 L77-1863-05 CRYSTAL RESONATOR (12.0MHZ)

XF101 L71-0512-05 MCF (44.85MHZ WIDE)

XF102 L71-0513-05 MCF (44.85MHZ NARROW)

R1 RK73FB2A821J CHIP R 820 J 1/10W

R2,3 RK73FB2A100J CHIP R 10 J 1/10W

R4 RK73FB2A821J CHIP R 820 J 1/10W

R5 RK73GB1J104J CHIP R 100K J 1/16W

R6 R92-1214-05 CHIP R 120 J 1/2W

R7 RK73GB1J392J CHIP R 3.9K J 1/16W

R8 RK73GB1J472J CHIP R 4.7K J 1/16W

R9 RK73GB1J103J CHIP R 10K J 1/16W

R10 RK73GB1J331J CHIP R 330 J 1/16W K2

R10 RK73GB1J471J CHIP R 470 J 1/16W K

R11 RK73GB1J102J CHIP R 1.0K J 1/16W

R12 RK73FB2A101J CHIP R 100 J 1/10W

R13 RK73GB1J223J CHIP R 22K J 1/16W

R14 RK73GB1J102J CHIP R 1.0K J 1/16W

R15 RK73FB2A470J CHIP R 47 J 1/10W

R101 RK73GB1J470J CHIP R 47 J 1/16W

R102 RK73GB1J472J CHIP R 4.7K J 1/16W

R103 RK73GB1J102J CHIP R 1.0K J 1/16W

R104 RK73GB1J120J CHIP R 12 J 1/16W

R105 RK73GB1J821J CHIP R 820 J 1/16W

R106 RK73GB1J330J CHIP R 33 J 1/16W

R107 RK73GB1J821J CHIP R 820 J 1/16W

R108 RK73GB1J334J CHIP R 330K J 1/16W

R109 RK73GB1J332J CHIP R 3.3K J 1/16W

R110,111 RK73GB1J104J CHIP R 100K J 1/16W

R112 RK73GB1J102J CHIP R 1.0K J 1/16W

R113-115 RK73GB1J104J CHIP R 100K J 1/16W

R116 R92-1252-05 CHIP R 0 OHM

R117 RK73GB1J101J CHIP R 100 J 1/16W

R118 RK73GB1J473J CHIP R 47K J 1/16W

R119 RK73GB1J560J CHIP R 56 J 1/16W

R120 RK73GB1J102J CHIP R 1.0K J 1/16W

R121 RK73FB2A821J CHIP R 820 J 1/10W

R122 RK73FB2A5R6J CHIP R 5.6 J 1/10W

R123 RK73GB1J270J CHIP R 27 J 1/16W

R124 RK73FB2A821J CHIP R 820 J 1/10W

R125-127 RK73GB1J222J CHIP R 2.2K J 1/16W

R128 RK73GB1J223J CHIP R 22K J 1/16W

R129 R92-1252-05 CHIP R 0 OHM

R132 RK73GB1J103J CHIP R 10K J 1/16W

R133 RK73GB1J472J CHIP R 4.7K J 1/16W

R134 RK73GB1J330J CHIP R 33 J 1/16W

R135 RK73GB1J220J CHIP R 22 J 1/16W

R136-138 RK73GB1J222J CHIP R 2.2K J 1/16W

R139 RK73GB1J473J CHIP R 47K J 1/16W

R141 RK73GB1J102J CHIP R 1.0K J 1/16W

R142 RK73GB1J472J CHIP R 4.7K J 1/16W

R143 RK73GB1J470J CHIP R 47 J 1/16W

R144 RK73GB1J153J CHIP R 15K J 1/16W

R145,146 RK73GB1J223J CHIP R 22K J 1/16W

R148 RK73GB1J223J CHIP R 22K J 1/16W

R149 RK73GB1J274J CHIP R 270K J 1/16W

R150,151 RK73GB1J223J CHIP R 22K J 1/16W

R152 RK73GB1J472J CHIP R 4.7K J 1/16W

R153 RK73GB1J182J CHIP R 1.8K J 1/16W

R155 RK73GB1J472J CHIP R 4.7K J 1/16W

R156,157 RK73GB1J332J CHIP R 3.3K J 1/16W

R158 RK73GB1J821J CHIP R 820 J 1/16W

R159 RK73GB1J5R6J CHIP R 5.6 J 1/16W

R160 RK73GB1J821J CHIP R 820 J 1/16W

R161 R92-1252-05 CHIP R 0 OHM

R162 RK73GB1J682J CHIP R 6.8K J 1/16W

R163 RK73GB1J182J CHIP R 1.8K J 1/16W

R164 RK73GB1J101J CHIP R 100 J 1/16W

R165 RK73GB1J393J CHIP R 39K J 1/16W

R166 RK73GB1J220J CHIP R 22 J 1/16W

R167 RK73GB1J102J CHIP R 1.0K J 1/16W

R201 RK73GB1J271J CHIP R 270 J 1/16W

R202 RK73GB1J180J CHIP R 18 J 1/16W

R203 RK73GB1J102J CHIP R 1.0K J 1/16W

R204 RK73GB1J271J CHIP R 270 J 1/16W

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-XX) : TK-790/(B)

R205 RK73GB1J222J CHIP R 2.2K J 1/16W

R206 RK73GB1J103J CHIP R 10K J 1/16W

R207 RK73GB1J100J CHIP R 10 J 1/16W

R208 RK73GB1J222J CHIP R 2.2K J 1/16W

R209 RK73GB1J560J CHIP R 56 J 1/16W

R210 RK73GB1J470J CHIP R 47 J 1/16W

R211 RK73GB1J152J CHIP R 1.5K J 1/16W

R212 RK73GB1J472J CHIP R 4.7K J 1/16W

R213 RK73GB1J473J CHIP R 47K J 1/16W

R214 RK73GB1J100J CHIP R 10 J 1/16W

R215 RK73GB1J473J CHIP R 47K J 1/16W

R216 R92-0685-05 CHIP R 22 J 1/2W

R217 RK73GB1J472J CHIP R 4.7K J 1/16W

R218 RK73FB2A821J CHIP R 820 J 1/10W

R219,220 RK73FB2A100J CHIP R 10 J 1/10W

R221 RK73FB2A821J CHIP R 820 J 1/10W

R301-304 RK73GB1J103J CHIP R 10K J 1/16W

R305 R92-1252-05 CHIP R 0 OHM

R306 RK73GB1J560J CHIP R 56 J 1/16W

R307,308 RK73GB1J100J CHIP R 10 J 1/16W

R309 R92-1252-05 CHIP R 0 OHM

R310,311 RK73GB1J152J CHIP R 1.5K J 1/16W

R312 RK73GB1J682J CHIP R 6.8K J 1/16W

R313 RK73GB1J223J CHIP R 22K J 1/16W

R314,315 RK73GB1J221J CHIP R 220 J 1/16W

R316 RK73GB1J222J CHIP R 2.2K J 1/16W

R317 RK73GB1J474J CHIP R 470K J 1/16W

R318 RK73FB2A152J CHIP R 1.5K J 1/10W

R319 RK73GB1J102J CHIP R 1.0K J 1/16W

R320-323 R92-1252-05 CHIP R 0 OHM

R324 RK73GB1J223J CHIP R 22K J 1/16W

R325 RK73GB1J103J CHIP R 10K J 1/16W

R326 RK73GB1J330J CHIP R 33 J 1/16W

R327 RK73GB1J104J CHIP R 100K J 1/16W

R328 RK73GB1J330J CHIP R 33 J 1/16W

R329 RK73GB1J471J CHIP R 470 J 1/16W K

R329 RK73GB1J561J CHIP R 560 J 1/16W K2

R330 RK73GB1J271J CHIP R 270 J 1/16W K2

R330 RK73GB1J331J CHIP R 330 J 1/16W K

R331,332 RK73GB1J472J CHIP R 4.7K J 1/16W

R333 RK73GB1J470J CHIP R 47 J 1/16W

R334 RK73GB1J472J CHIP R 4.7K J 1/16W

R335 RK73GB1J470J CHIP R 47 J 1/16W

R336,337 RK73GB1J472J CHIP R 4.7K J 1/16W

R338 RK73GB1J473J CHIP R 47K J 1/16W

R339 RK73GB1J103J CHIP R 10K J 1/16W

R340 RK73GB1J330J CHIP R 33 J 1/16W

R341 RK73GB1J331J CHIP R 330 J 1/16W

R342 RK73GB1J223J CHIP R 22K J 1/16W

R343 RK73GB1J103J CHIP R 10K J 1/16W

R344 RK73GB1J223J CHIP R 22K J 1/16W

R345 RK73GB1J103J CHIP R 10K J 1/16W

R346 RK73GB1J330J CHIP R 33 J 1/16W

R347 RK73GB1J471J CHIP R 470 J 1/16W

R348 RK73GB1J331J CHIP R 330 J 1/16W

R349 RK73GB1J330J CHIP R 33 J 1/16W

R350 RK73GB1J101J CHIP R 100 J 1/16W

R351,352 RK73GB1J102J CHIP R 1.0K J 1/16W

R354,355 RK73GB1J220J CHIP R 22 J 1/16W

R357 R92-1252-05 CHIP R 0 OHM

R358 RK73GB1J331J CHIP R 330 J 1/16W

R361 RK73GB1J102J CHIP R 1.0K J 1/16W

R366 R92-1252-05 CHIP R 0 OHM

R501 RK73GB1J333J CHIP R 33K J 1/16W

R502 RK73GB1J471J CHIP R 470 J 1/16W

R504 R92-0670-05 CHIP R 0 OHM

R505 RK73GB1J103J CHIP R 10K J 1/16W

R507 RK73GB1J223J CHIP R 22K J 1/16W

R508 RK73GB1J102J CHIP R 1.0K J 1/16W

R509-511 RK73GB1J473J CHIP R 47K J 1/16W

R512 RK73GB1J184J CHIP R 180K J 1/16W

R513 RK73GB1J223J CHIP R 22K J 1/16W

R514 RK73GB1J184J CHIP R 180K J 1/16W

R515 R92-0670-05 CHIP R 0 OHM

R516 RK73GB1J104J CHIP R 100K J 1/16W

R517 ✽RK73GH1J104D CHIP R 100K D 1/16W

R518 R92-1252-05 CHIP R 0 OHM

R519 RK73GB1J104J CHIP R 100K J 1/16W

R520 ✽RK73GH1J334D CHIP R 330K D 1/16W

R521 RK73GB1J102J CHIP R 1.0K J 1/16W

R522 RK73GH1J913D CHIP R 91K D 1/16W

R523 RK73GB1J474J CHIP R 470K J 1/16W

R524 RK73GH1J224D CHIP R 220K D 1/16W

R525 RK73GB1J472J CHIP R 4.7K J 1/16W

R526 RK73GB1J104J CHIP R 100K J 1/16W

R527 RK73GB1J223J CHIP R 22K J 1/16W

R528 RK73GB1J104J CHIP R 100K J 1/16W

R529,530 RK73GB1J334J CHIP R 330K J 1/16W

R531 RK73GB1J154J CHIP R 150K J 1/16W

R532 RK73GB1J474J CHIP R 470K J 1/16W

R533 RN73GH1J473D CHIP R 47K D 1/16W

R534 RN73GH1J563D CHIP R 56K D 1/16W

R535 RK73GB1J103J CHIP R 10K J 1/16W

R536 RK73GB1J681J CHIP R 680 J 1/16W

R537 RK73GB1J472J CHIP R 4.7K J 1/16W

R539 RK73GB1J561J CHIP R 560 J 1/16W

R541 R92-0670-05 CHIP R 0 OHM

R542 RK73GB1J470J CHIP R 47 J 1/16W

R543 RK73GB1J220J CHIP R 22 J 1/16W

R545 RK73GB1J564J CHIP R 560K J 1/16W

R546 R92-0670-05 CHIP R 0 OHM

R547 R92-1252-05 CHIP R 0 OHM

R549 RK73GB1J153J CHIP R 15K J 1/16W

R550 RK73GB1J683J CHIP R 68K J 1/16W

R552 RK73GB1J101J CHIP R 100 J 1/16W

R553 RK73GB1J822J CHIP R 8.2K J 1/16W

R557,558 RK73GB1J104J CHIP R 100K J 1/16W

R559 RK73GB1J473J CHIP R 47K J 1/16W

R561 RK73GB1J102J CHIP R 1.0K J 1/16W

R562 RK73GB1J274J CHIP R 270K J 1/16W

R563 RK73GB1J104J CHIP R 100K J 1/16W

R564 RK73GB1J474J CHIP R 470K J 1/16W

R565 RK73GB1J123J CHIP R 12K J 1/16W

R566 RK73GB1J153J CHIP R 15K J 1/16W

R567 RK73GB1J224J CHIP R 220K J 1/16W

R568 R92-1252-05 CHIP R 0 OHM

R570 RK73GB1J223J CHIP R 22K J 1/16W

R572 RK73GB1J104J CHIP R 100K J 1/16W

R573 RK73GB1J274J CHIP R 270K J 1/16W

R574 RK73GB1J102J CHIP R 1.0K J 1/16W

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-XX) : TK-790/(B)

R575,576 RK73GB1J104J CHIP R 100K J 1/16W

R577 RK73GB1J122J CHIP R 1.2K J 1/16W

R578 RK73GB1J102J CHIP R 1.0K J 1/16W

R579,580 RK73GB1J823J CHIP R 82K J 1/16W

R581,582 RK73GB1J683J CHIP R 68K J 1/16W

R583 R92-0670-05 CHIP R 0 OHM

R584 RK73GB1J333J CHIP R 33K J 1/16W

R586 RK73GB1J104J CHIP R 100K J 1/16W

R587 R92-0670-05 CHIP R 0 OHM

R588 RK73GB1J473J CHIP R 47K J 1/16W

R589 RK73GB1J223J CHIP R 22K J 1/16W

R591,592 RK73GB1J124J CHIP R 120K J 1/16W

R594-597 RK73GB1J473J CHIP R 47K J 1/16W

R598 RK73GB1J332J CHIP R 3.3K J 1/16W

R599,600 RK73GB1J473J CHIP R 47K J 1/16W

R601 RK73GB1J472J CHIP R 4.7K J 1/16W

R602 RK73FB2A473J CHIP R 47K J 1/10W

R603 RK73GB1J103J CHIP R 10K J 1/16W

R604 R92-0670-05 CHIP R 0 OHM

R605 RK73GB1J333J CHIP R 33K J 1/16W

R606 RK73GB1J154J CHIP R 150K J 1/16W

R607 R92-1252-05 CHIP R 0 OHM

R608 RK73GB1J123J CHIP R 12K J 1/16W

R609 RK73GB1J153J CHIP R 15K J 1/16W

R611 RK73GB1J474J CHIP R 470K J 1/16W

R612 RK73GB1J823J CHIP R 82K J 1/16W

R613 RK73GB1J393J CHIP R 39K J 1/16W

R615 RK73GB1J122J CHIP R 1.2K J 1/16W

R616 RK73GB1J152J CHIP R 1.5K J 1/16W

R617 RN73GH1J274D CHIP R 270K D 1/16W

R618 RN73GH1J334D CHIP R 330K D 1/16W

R619,620 RN73GH1J274D CHIP R 270K D 1/16W

R621 RK73GB1J472J CHIP R 4.7K J 1/16W

R622 RK73GB1J473J CHIP R 47K J 1/16W

R623 RN73GH1J274D CHIP R 270K D 1/16W

R624 RK73GB1J103J CHIP R 10K J 1/16W

R625 RK73GB1J684J CHIP R 680K J 1/16W

R626 RK73GB1J822J CHIP R 8.2K J 1/16W

R627 RN73GH1J274D CHIP R 270K D 1/16W

R628 R92-0670-05 CHIP R 0 OHM

R629 RN73GH1J563D CHIP R 56K D 1/16W

R630 RN73GH1J473D CHIP R 47K D 1/16W

R631 RK73GB1J104J CHIP R 100K J 1/16W

R632 RK73GB1J102J CHIP R 1.0K J 1/16W

R633,634 RK73GB1J103J CHIP R 10K J 1/16W

R635 R92-0670-05 CHIP R 0 OHM

R636 ✽RK73GH1J104D CHIP R 100K D 1/16W

R638 RK73GH1J223D CHIP R 22K D 1/16W

R639 RK73GB1J473J CHIP R 47K J 1/16W

R641 R92-0670-05 CHIP R 0 OHM

R642-648 RK73FB2A102J CHIP R 1.0K J 1/10W

R652 RK73FB2A102J CHIP R 1.0K J 1/10W

R654-656 RK73FB2A102J CHIP R 1.0K J 1/10W

R657 R92-0670-05 CHIP R 0 OHM

R658 RK73GB1J473J CHIP R 47K J 1/16W

R659 RK73GB1J563J CHIP R 56K J 1/16W

R661 R92-0670-05 CHIP R 0 OHM

R662 RK73GB1J472J CHIP R 4.7K J 1/16W

R663 RK73GB1J473J CHIP R 47K J 1/16W

R664 RK73GB1J333J CHIP R 33K J 1/16W

R665 RK73GB1J104J CHIP R 100K J 1/16W

R666,667 R92-0670-05 CHIP R 0 OHM

R668 R92-1252-05 CHIP R 0 OHM

R670 R92-0670-05 CHIP R 0 OHM

R671 RK73GB1J683J CHIP R 68K J 1/16W

R672 RK73GB1J473J CHIP R 47K J 1/16W

R674,675 RK73GB1J472J CHIP R 4.7K J 1/16W

R676 RK73GB1J473J CHIP R 47K J 1/16W

R677 RK73GB1J472J CHIP R 4.7K J 1/16W

R678,679 RK73GB1J332J CHIP R 3.3K J 1/16W

R680 RK73GB1J104J CHIP R 100K J 1/16W

R690,691 R92-0670-05 CHIP R 0 OHM

R693 RK73GB1J103J CHIP R 10K J 1/16W

R695 R92-1252-05 CHIP R 0 OHM

R697 R92-1252-05 CHIP R 0 OHM

R698 RK73GB1J472J CHIP R 4.7K J 1/16W

R699 R92-1252-05 CHIP R 0 OHM

R700 RK73GB1J220J CHIP R 22 J 1/16W

R701 RK73GB1J103J CHIP R 10K J 1/16W

R702 RK73GB1J472J CHIP R 4.7K J 1/16W

R703 RK73GB1J473J CHIP R 47K J 1/16W

R706 R92-0670-05 CHIP R 0 OHM

R707-713 RK73GB1J474J CHIP R 470K J 1/16W

R714 RK73GB1J104J CHIP R 100K J 1/16W

R715 RK73GB1J474J CHIP R 470K J 1/16W

R716 RK73GB1J104J CHIP R 100K J 1/16W

R717 RK73GB1J102J CHIP R 1.0K J 1/16W

R718 RK73GB1J333J CHIP R 33K J 1/16W

R719 RS14DB3D2R2J

FL-PROOF RS

2.2 J 2W

R720 R92-0670-05 CHIP R 0 OHM

R721 RK73GB1J393J CHIP R 39K J 1/16W

R722 RK73GB1J184J CHIP R 180K J 1/16W

R723 R92-0670-05 CHIP R 0 OHM

R724 RK73GB1J683J CHIP R 68K J 1/16W

R725 RK73GB1J333J CHIP R 33K J 1/16W

R726 RK73GB1J122J CHIP R 1.2K J 1/16W

R727 RK73GB1J473J CHIP R 47K J 1/16W

R728 R92-0670-05 CHIP R 0 OHM

R729-736 RK73GB1J472J CHIP R 4.7K J 1/16W

R740,741 RK73GB1J103J CHIP R 10K J 1/16W

R742 R92-0670-05 CHIP R 0 OHM

R744 RK73GB1J104J CHIP R 100K J 1/16W

R746 R92-1252-05 CHIP R 0 OHM

R747 R92-0670-05 CHIP R 0 OHM

R748 R92-1252-05 CHIP R 0 OHM

VR1 R12-6427-05 TRIMMING POT. (47K)

VR501 R12-6417-05 TRIMMING POT. (1K)

D1 DSA3A1-FK DIODE

D2 22ZR-10D SURGE ABSORBER

D3 MA4PH633 DIODE

D4 MI809 DIODE

D4 XB15A709 DIODE

D5,6 HSM88AS DIODE

D101 1SS355 DIODE

D102 1SV269 VARIABLE CAPACITANCE DIODE

D103 MA742 DIODE

D104,105 1SV269 VARIABLE CAPACITANCE DIODE

D106-109 DAN235K DIODE

D201,202 DA204K DIODE

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-XX) : TK-790/(B)

TK-790H(B)

D301-304 1SV282 VARIABLE CAPACITANCE DIODE

D305 1SV214 VARIABLE CAPACITANCE DIODE

D306 DAN235K DIODE

D501 02CZ18(X,Y) ZENER DIODE

D502,503 1SS355 DIODE

D504 02CZ5.6(X,Y) ZENER DIODE

D505 1SS355 DIODE

D506 1SS301 DIODE

D507 02CZ15(X,Y) ZENER DIODE

D508 1SS355 DIODE

D511 1SS301 DIODE

D512 1SS355 DIODE

D513-517 DA204U DIODE

D519 DA204U DIODE

D521 DA204U DIODE

D523,524 DA204U DIODE

D526,527 DA204U DIODE

D528,529 1SS355 DIODE

IC1 M68702H IC (RF POWER MODULE) K

IC1 M68702L IC (RF POWER MODULE) K2

IC101 TA31136FN IC (FM IC)

IC201 BU4094BCF IC (SHIFT REGISTER)

IC202 NJM78L05UA IC (AVR)

IC203 AN8009M IC (AVR)

IC301 SA7025DK IC (PLL IC)

IC501 TC4013BF(N) IC (D FF)

IC502 NJM4558M IC (LPF)

IC503 TA7808S IC (AVR)

IC504 TC35453F IC (AUDIO PROCESSOR)

IC505 NJM4558M IC (HPF/IDC)

IC506 L78LR05B-FA IC (AVR)

IC508 NJM4558M IC (LIMITER/BUFFER AMP)

IC509 MC33172D IC (BUFFER AMP)

IC510 NJM4558M IC (SUMMING AMP/LPF)

IC511 PCD3312CT IC (DTMF ENCODER)

IC512 M62364FP IC (D/A CONVERTER)

IC513 NJM4558M IC (LPF/SUMMING AMP)

IC514 AT24C64N10SI27 IC (EEPROM)

IC515 BU4066BCF IC (ANALOG SWITCH)

IC516 ✽784214GC0518EU IC (CPU)

IC517 BU4094BCF IC (SHIFT REGISTER)

IC518 NJM4558M IC (BUFFER AMP)

IC519 AT29C020-90TI IC (FLASH ROM)

IC520 TC7S02F IC (NOR GATE)

IC521 NJM4558M IC (BUFFER AMP)

IC522 TDA8561Q IC (AUDIO POWER AMP)

IC523 BU4094BCF IC (SHIFT REGISTER)

IC524 NJM4558M IC (BUFFER AMP/DE-EMPHASIS)

IC525 LC73872M IC (DTMF DECODER)

IC526 TA75S01F IC (COMPANDER AMP)

Q1 2SA1162(Y) TRANSISTOR

Q2 2SD2399 TRANSISTOR

Q3 2SC2712(Y) TRANSISTOR

Q4 DTC144EUA DIGITAL TRANSISTOR

Q5 FMW1 TRANSISTOR

Q6 2SC2712(Y) TRANSISTOR

Q101,102 2SC3357 TRANSISTOR

Q104 2SC3357 TRANSISTOR

Q105 DTA144EUA DIGITAL TRANSISTOR

Q106 DTC144EUA DIGITAL TRANSISTOR

Q107 2SC4215(Y) TRANSISTOR

Q108 DTC144EUA DIGITAL TRANSISTOR

Q109 2SC4617(S) TRANSISTOR

Q201 2SC3357 TRANSISTOR

Q202 2SB1132(Q,R) TRANSISTOR

Q203 DTC114EUA DIGITAL TRANSISTOR

Q204 2SC2954 TRANSISTOR

Q205 DTC114EUA DIGITAL TRANSISTOR

Q206 2SB1132(Q,R) TRANSISTOR

Q301,302 2SC4116(GR) TRANSISTOR

Q303,304 2SC3722K(S) TRANSISTOR

Q305,306 2SK508NV(K52) FET

Q307,308 2SC4116(Y) TRANSISTOR

Q309 DTC114EUA DIGITAL TRANSISTOR

Q310,311 2SC4215(Y) TRANSISTOR

Q312 2SC3120 TRANSISTOR

Q501 DTA114EUA DIGITAL TRANSISTOR

Q502,503 DTC114EUA DIGITAL TRANSISTOR

Q504 DTC363EK DIGITAL TRANSISTOR

Q505 DTC144EUA DIGITAL TRANSISTOR

Q506 DTA114YUA DIGITAL TRANSISTOR

Q507 DTC114YUA DIGITAL TRANSISTOR

Q509-513 DTC144EUA DIGITAL TRANSISTOR

Q514 DTA144TKA DIGITAL TRANSISTOR

Q516 DTA114TUA DIGITAL TRANSISTOR

Q517 DTC144EUA DIGITAL TRANSISTOR

Q518 DTA114EUA DIGITAL TRANSISTOR

Q519 2SJ506(S) FET

Q520 DTD114EK DIGITAL TRANSISTOR

Q522 2SC4215(Y) TRANSISTOR

Q523,524 DTC114TU DIGITAL TRANSISTOR

Q525 DTC144EUA DIGITAL TRANSISTOR

Q526 DTA114TUA DIGITAL TRANSISTOR

Q527 DTC144EUA DIGITAL TRANSISTOR

Q528 DTA114TUA DIGITAL TRANSISTOR

Q529,530 DTC144EUA DIGITAL TRANSISTOR

Q531 DTA114TUA DIGITAL TRANSISTOR

Q532-536 DTC144EUA DIGITAL TRANSISTOR

Q537-540 DTD114EK DIGITAL TRANSISTOR

Q541 DTC114EUA DIGITAL TRANSISTOR

Q542 DTA114EUA DIGITAL TRANSISTOR

Q543,544 DTC114EUA DIGITAL TRANSISTOR

TH101 157-503-53006 THERMISTOR

TH501 157-302-53008 THERMISTOR

A101 W02-1939-05 DBM

101 3D A01-2163-01 CABINET (UPPER)

102 1C A01-2164-01 CABINET (LOWER)

103 2D A10-1389-01 CHASSIS

106 3C,3D B42-2455-04 STICKER (M4X8 MAX)

107 1K B46-0470-00 WARRANTY CARD ACSY

108 1K ✽B62-0970-10 INSTRUCTION MANUAL

-✽B72-1453-34 MODEL NAME PLATE

111 2D E04-0167-05 RF COAXIAL PECEPTACLE (M)

TK-790H(B)

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TK-790H(B)

FINAL UNIT (X45-3560-10) : TK-790H(B)

113 2C E31-3301-05

LEAD WIRE WITH MINIPIN PLUG (RA/DO)

114 2D E37-0709-05

LEAD WIRE WITH CONNECTOR (ACC:9P)

115 2D E37-0731-05

LEAD WIRE WITH CONNECTOR (DC:2P)

116 2D,1L E37-0733-05 SHORT PLUG (SP) ACSY

117 2D ✽E37-0773-25

LEAD WIRE WITH CONNECTOR (D-SUB:25P)

118 3C E37-0776-05 FLAT CABLE (CONT-TX:18P)

123 2D F09-0445-05 CAP (D-SUB)

124 1D F10-1488-02 SHIELDING PLATE (FINAL)

122 1L F29-0472-04 INSULATING COVER ACSY

127 3C G02-0709-04 FLAT SPRING (AUDIO AMP)

128 3C G02-0715-04 FLAT SPRING (AVR)

129 2D G53-0715-03 PACKING (DC,ACC)

132 3D G53-0871-03 PACKING (CABINET UPPER)

133 1C G53-0872-03 PACKING (CABINET LOWER)

135 1K H02-0604-03 INNER PACKING CASE

136 2L H10-6617-11 POLYSTYRENE FOAMED FIXTURE

137 1L H11-0815-04 POLYSTYRENE FOAMED BOARD

138 2L H11-0853-04 POLYSTYRENE FOAMED BOARD

139 2K H11-0892-04 POLYSTYRENE FOAMED BOARD

140 2K H12-1410-04 PACKING FIXTURE

141 2L H12-1442-04 PACKING FIXTURE

142 2K H13-1066-04 CARTON BOARD

144 1L H25-0103-04 PROTECTION BAG (125/250/0.07)

145 1K H25-0724-04 PROTECTION BAG (300/500/0.07)

143 1L ✽H25-2063-04 PROTECTION BAG (80/120/0.03)

146 3L H52-1229-12 ITEM CARTON CASE

147 2D J21-8347-04 HARDWARE FIXTURE (DC,ACC)

148 1D J32-0919-04 HEXAGON BOSS (FINAL)

150 1L J61-0307-05 BAND ACSY

M 2D N09-2292-05 HEXAGON HEAD SCREW

N 1C,3D N33-3006-45 OVAL HEAD MACHINE SCREW

O 1D N35-3006-46 BINDING HEAD MACHINE SCREW

P 2C,2D N67-3008-46 PAN HEAD SEMS SCREW W

Q 1C,1D N68-4006-46 PAN HEAD SEMS SCREW A

R 2C,3D N87-2606-46 BRAZIER HEAD TAPTITE SCREW

S 2C N87-2612-46 BRAZIER HEAD TAPTITE SCREW

T 2D N87-3008-46 BRAZIER HEAD TAPTITE SCREW

159 2L N99-0365-05 SCREW SET ACSY

C1-6 CK73FB1H102K CHIP C 1000PF K

C7 C92-0736-05 ELECTRO 10UF 50WV

C8 CK73FB1E104K CHIP C 0.10UF K

C9 C90-2020-05 ELECTRO 15UF 25WV

C10 C92-0727-05 ELECTRO 220UF 35WV

C11,12 CK73FB1H102K CHIP C 1000PF K

C13 CM73F2H160J CHIP C 16PF J

C14 C92-0736-05 ELECTRO 10UF 50WV

C15 CK73FB1H102K CHIP C 1000PF K

C16 CM73F2H430J CHIP C 43PF J

C17 CK73FB1H102K CHIP C 1000PF K

C18 C92-0726-05 ELECTRO 47UF 25WV

C19 CM73F2H161J CHIP C 160PF J

C20 CK73FB1H102K CHIP C 1000PF K

C21 CM73F2H201J CHIP C 200PF J

C22,23 CM73F2H681J CHIP C 680PF J

C24,25 CM73F2H201J CHIP C 200PF J

C26,27 CK73FB1H102K CHIP C 1000PF K

C28-31 CM73F2H271J CHIP C 270PF J

C32-35 CM73F2H221J CHIP C 220PF J

C36,37 CK73FB1H102K CHIP C 1000PF K

C38 CK73FB1H103K CHIP C 0.010UF K

C39 CK73FB1E104K CHIP C 0.10UF K

C40,41 CM73F2H681J CHIP C 680PF J

C42 CK73FB1H102K CHIP C 1000PF K

C43 CM73F2H620J CHIP C 62PF J

C44 C92-0736-05 ELECTRO 10UF 50WV

C45 CK73FB1H103K CHIP C 0.010UF K

C46 CM73F2H620J CHIP C 62PF J

C47 CK73FB1H102K CHIP C 1000PF K

C48 CK73FB1E104K CHIP C 0.10UF K

C49 CM73F2H470J CHIP C 47PF J

C50 C92-0736-05 ELECTRO 10UF 50WV

C51 CM73F2H180J CHIP C 18PF J

C52 CK73FB1H102K CHIP C 1000PF K

C53 CC73FCH1H220J CHIP C 22PF J

C55 CK73FB1H102K CHIP C 1000PF K

C57-59 CK73FB1H102K CHIP C 1000PF K

C60 CC73FCH1H020C CHIP C 2.0PF C

C61-63 CK73FB1H102K CHIP C 1000PF K

C64 CM73F2H100D CHIP C 10PF D

C65 C92-0729-05 ELECTRO 330UF 25WV

C66 ✽CM73F2H360F CHIP C 36PF F

C67 C92-0729-05 ELECTRO 330UF 25WV

C68,69 CK73FB1H102K CHIP C 1000PF K

C70 ✽CM73F2H360F CHIP C 36PF F

C71 CM73F2H080D CHIP C 8.0PF D

C72 CM73F2H180J CHIP C 18PF J

C73,74 CK73FB1H102K CHIP C 1000PF K

C75,76 CK73FB1H103K CHIP C 0.010UF K

C77,78 CK73FB1E104K CHIP C 0.10UF K

C79 CK73FB1H103K CHIP C 0.010UF K

C80 CK73FB1E104K CHIP C 0.10UF K

C81 CK73FB1H103K CHIP C 0.010UF K

C82 CK73FB1E104K CHIP C 0.10UF K

CN1,2 E04-0154-05 PIN SOCKET

CN3,4 E23-1116-05 RELAY TERMINAL

W1,2 E37-0783-05 PROCESSED LEAD WIRE

W4 E37-0706-05 LEAD WIRE WITH CONNECTOR

W5 E37-0701-05 LEAD WIRE WITH CONNECTOR

L1 L34-1039-05 AIR-CORE COIL

L2 L39-0421-04 COIL

L3,4 L34-1231-15 AIR-CORE COIL

L5 L34-1246-15 AIR-CORE COIL

L6 L34-1247-05 AIR-CORE COIL

L7,8 L34-1232-15 AIR-CORE COIL

L9 L34-1231-15 AIR-CORE COIL

L10 L34-1088-05 AIR-CORE COIL

L11 L40-1885-34 SMALL FIXED INDUCTOR (180NH)

R1 RK73FB2A100J CHIP R 10 J 1/10W

R2 RK73FB2A473J CHIP R 47K J 1/10W

R4 RK73FB2A103J CHIP R 10K J 1/10W

R5 RK73FB2A471J CHIP R 470 J 1/10W

R6 RK73FB2A472J CHIP R 4.7K J 1/10W

FINAL UNIT (X45-3560-10) : TK-790H(B)

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

FINAL UNIT (X45-3560-10) : TK-790H(B)

TX-RX UNIT (X57-5610-12) : TK-790H(B)

R7 RK73FB2A392J CHIP R 3.9K J 1/10W

R8 RD14DB3A3R3J SMALL-RD 3.3 J 1W

R9,10 RS14DB3D2R2J

FL-PROOF RS

2.2 J 2W

R11 RK73FB2A182J CHIP R 1.8K J 1/10W

R12 RK73FB2A102J CHIP R 1.0K J 1/10W

R13 RD14DB3A3R3J SMALL-RD 3.3 J 1W

R16,17 R92-1221-05 CHIP R 82 J 1/4W

R18 RK73FB2A122J CHIP R 1.2K J 1/10W

R19 RK73FB2A103J CHIP R 10K J 1/10W

R20 RK73FB2A821J CHIP R 820 J 1/10W

R21 RK73FB2A100J CHIP R 10 J 1/10W

R22 RK73FB2A821J CHIP R 820 J 1/10W

R23 RK73FB2A104J CHIP R 100K J 1/10W

R24 RK73FB2A561J CHIP R 560 J 1/10W

R25 R92-1061-05 JUMPER REST 0 OHM

VR1 R12-6421-05 TRIMMING POT. (4.7K)

K1 S51-1437-05 RELAY

D1,2 HSM88AS DIODE

D3 1SS184 DIODE

D4 22ZR-10D SURGE ABSORBER

D5 1SS193 DIODE

D6 02CZ10(X,Y) ZENER DIODE

D7 SG-5L(R) DIODE

IC1 M67741H-32 IC (RF POWER MODULE)

Q1,2 2SC2712(Y) TRANSISTOR

Q3 2SD2531 TRANSISTOR

Q4 2SA1162(Y) TRANSISTOR

Q5 FMW1 TRANSISTOR

Q6,7 2SC2782 TRANSISTOR

Q8 FMC2 DIGITAL TRANSISTOR

Q9 2SD1624(S) TRANSISTOR

Q10 2SC2712(Y) TRANSISTOR

Q11 DTC144EUA DIGITAL TRANSISTOR

TH1 PTH9M04BC471TS THERMISTOR

C101 CK73GB1H103K CHIP C 0.010UF K

C102,103 CC73GCH1H220J CHIP C 22PF J

C104 CC73GCH1H180J CHIP C 18PF J

C105 CC73GCH1H101J CHIP C 100PF J

C106 CK73GB1H103K CHIP C 0.010UF K

C107 CC73GCH1H101J CHIP C 100PF J

C108 CC73GCH1H100D CHIP C 10PF D

C110 CC73GCH1H100D CHIP C 10PF D

C111 CC73GCH1H020C CHIP C 2.0PF C

C112 CK73GB1H103K CHIP C 0.010UF K

C113 CK73GB1H102K CHIP C 1000PF K

C114 CC73GCH1H100D CHIP C 10PF D

C116 CC73GCH1H020C CHIP C 2.0PF C

C117 CC73GCH1H680J CHIP C 68PF J

C118 CC73GCH1H080D CHIP C 8.0PF D

C119 CC73GCH1H180J CHIP C 18PF J

C120 CC73GCH1H120J CHIP C 12PF J

C121 CC73GCH1H101J CHIP C 100PF J

C123 CC73GCH1H221J CHIP C 220PF J

C124 CC73GCH1H330J CHIP C 33PF J

C125 CK73GB1H103K CHIP C 0.010UF K

C126 CC73GCH1H150J CHIP C 15PF J

C127 CC73GCH1H151J CHIP C 150PF J

C128 CC73GCH1H030C CHIP C 3.0PF C

C129 CC73GCH1H101J CHIP C 100PF J

C130 CC73GCH1H270J CHIP C 27PF J

C131 CK73GB1H102K CHIP C 1000PF K

C132 CC73GCH1H030C CHIP C 3.0PF C

C133 CC73GCH1H270J CHIP C 27PF J

C134,135 CK73GB1H103K CHIP C 0.010UF K

C138-140 CC73GCH1H030C CHIP C 3.0PF C

C141 CC73GCH1H040C CHIP C 4.0PF C

C143 CK73GB1H102K CHIP C 1000PF K

C144 CC73GCH1H101J CHIP C 100PF J

C145,146 CC73GCH1H030C CHIP C 3.0PF C

C147 CC73FCH1H090D CHIP C 9.0PF D

C148 CK73GB1H102K CHIP C 1000PF K

C151,152 CK73GB1H103K CHIP C 0.010UF K

C153,154 CK73GB1H102K CHIP C 1000PF K

C155 CC73GCH1H100D CHIP C 10PF D

C156 CK73FB1E104K CHIP C 0.10UF K

C157 CC73GCH1H090D CHIP C 9.0PF D

C158 CC73GCH1H101J CHIP C 100PF J

C159 CC73GCH1H220J CHIP C 22PF J

C160 CK73GB1H102K CHIP C 1000PF K

C161-163 CK73GB1H103K CHIP C 0.010UF K

C165 C92-0560-05 CHIP-TAN 10UF 6.3WV

C166 CC73GCH1H080D CHIP C 8.0PF D

C167 CC73GCH1H270J CHIP C 27PF J

C168 CK73FB1E104K CHIP C 0.10UF K

C169 CK73GB1H103K CHIP C 0.010UF K

C170,171 CC73GCH1H221J CHIP C 220PF J

C172 CK73GB1H472K CHIP C 4700PF K

C173 CK73GB1H103K CHIP C 0.010UF K

C174 CK73FB1E104K CHIP C 0.10UF K

C175 CK73GB1C333K CHIP C 0.033UF K

C176 C92-0003-05 CHIP-TAN 0.47UF 25WV

C177 CK73GB1H102K CHIP C 1000PF K

C178 CK73GB1H103K CHIP C 0.010UF K

C179-182 CC73GCH1H470J CHIP C 47PF J

C183-185 CC73GCH1H150J CHIP C 15PF J

C186 CC73GCH1H330J CHIP C 33PF J

C187,188 CC73GCH1H120J CHIP C 12PF J

C189 CK73GB1E223K CHIP C 0.022UF K

C190 CK73GB1H102K CHIP C 1000PF K

C191 CK73GB1E223K CHIP C 0.022UF K

C192 CK73FB1C334K CHIP C 0.33UF K

C193 CK73GB1H102K CHIP C 1000PF K

C194 C92-0560-05 CHIP-TAN 10UF 6.3WV

C195 CK73GB1H102K CHIP C 1000PF K

C201 CK73GB1H471K CHIP C 470PF K

C202 CC73GCH1H101J CHIP C 100PF J

C203-205 CK73GB1H102K CHIP C 1000PF K

C206 CK73GB1H103K CHIP C 0.010UF K

C207 C92-0044-05 CHIP-ELE 47UF 10WV

C208 CK73GB1H102K CHIP C 1000PF K

C209 C92-0023-05 CHIP-ELE 1.0UF 50WV

C210 CK73GB1H102K CHIP C 1000PF K

C211 CC73GCH1H270J CHIP C 27PF J

C213,214 CK73GB1H102K CHIP C 1000PF K

TX-RX UNIT (X57-5610-12) : TK-790H(B) K

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-12) : TK-790H(B)

C215 CK73FB1E104K CHIP C 0.10UF K

C216 CK73GB1C473K CHIP C 0.047UF K

C217 C92-0008-05 CHIP-TAN 3.3UF 16WV

C218,219 CK73GB1H102K CHIP C 1000PF K

C220 CC73FCH1H220J CHIP C 22PF J

C221 CK73GB1H102K CHIP C 1000PF K

C222 C92-0044-05 CHIP-ELE 47UF 10WV

C223 CK73GB1H102K CHIP C 1000PF K

C224 CK73FB1E104K CHIP C 0.10UF K

C225-227 CK73GB1H102K CHIP C 1000PF K

C301,302 CK73GB1H102K CHIP C 1000PF K

C303 CK73GB1H103K CHIP C 0.010UF K

C304 CK73FB1E104K CHIP C 0.10UF K

C305 CK73GB1H102K CHIP C 1000PF K

C306,307 CK73GB1H103K CHIP C 0.010UF K

C308,309 CK73FB1E104K CHIP C 0.10UF K

C310 C92-0633-05 CHIP-TAN 22UF 10WV

C311 C90-4016-05 ELECTRO 47UF 16WV

C312 C92-0001-05 CHIP C 0.1UF 35WV

C313 C92-1341-05 ELECTRO 100UF 16WV

C314 C90-4016-05 ELECTRO 47UF 16WV

C315 CC73GCH1H100D CHIP C 10PF D

C316,317 CK73GB1H103K CHIP C 0.010UF K

C318,319 C92-0514-05 CHIP-TAN 2.2UF 10WV

C320 CK73FB1E224K CHIP C 0.22UF K

C321 C92-0003-05 CHIP-TAN 0.47UF 25WV

C322 CK73GB1H102K CHIP C 1000PF K

C323 CC73GCH1H240J CHIP C 24PF J

C324 CK73GB1H102K CHIP C 1000PF K

C325 CC73GCH1H360J CHIP C 36PF J

C326 CC73GCH1H050C CHIP C 5.0PF C

C327 CC73GCH1H470J CHIP C 47PF J

C328 CC73GCH1H180G CHIP C 18PF G

C329 CK73GB1H102K CHIP C 1000PF K

C330 CC73GCH1HR75C CHIP C 0.75PF C

C331 CC73GCH1H150J CHIP C 15PF J

C332 CK73FB1C474K CHIP C 0.47UF K

C333 CC73GCH1H150J CHIP C 15PF J

C334,335 CC73GCH1H120J CHIP C 12PF J

C336 CC73GCH1H150J CHIP C 15PF J

C337-339 CK73GB1H102K CHIP C 1000PF K

C340,341 CC73GCH1H020C CHIP C 2.0PF C

C342,343 CK73GB1H102K CHIP C 1000PF K

C344 CC73GCH1H100D CHIP C 10PF D

C345-349 CK73GB1H102K CHIP C 1000PF K

C350 CC73GCH1H470J CHIP C 47PF J

C351-355 CK73GB1H102K CHIP C 1000PF K

C356 C92-0606-05 CHIP-TAN 4.7UF 10WV

C357 C92-0560-05 CHIP-TAN 10UF 6.3WV

C358 CK73GB1H102K CHIP C 1000PF K

C359 CC73GCH1H100D CHIP C 10PF D

C360 CC73GCH1H050C CHIP C 5.0PF C

C361 CK73FB1C474K CHIP C 0.47UF K

C362 CC73GCH1H270J CHIP C 27PF J

C363,364 CC73GCH1H030C CHIP C 3.0PF C

C365,366 CC73GCH1H150J CHIP C 15PF J

C370 CK73GB1H102K CHIP C 1000PF K

C371 CK73FB1H473K CHIP C 0.047UF K

C501 CC73GCH1H101J CHIP C 100PF J

C524 CK73GB1H102K CHIP C 1000PF K

C525 CK73FB1E683K CHIP C 0.068UF K

C526,527 CK73GB1H471K CHIP C 470PF K

C528 CC73GCH1H101J CHIP C 100PF J

C529 C92-0585-05 CHIP-TAN 4.7UF 16WV

C530 CK73GB1E123K CHIP C 0.012UF K

C531 C92-0560-05 CHIP-TAN 10UF 6.3WV

C532 CK73GB1H222K CHIP C 2200PF K

C533 C92-0560-05 CHIP-TAN 10UF 6.3WV

C534 CK73FB1E104K CHIP C 0.10UF K

C535 C92-0560-05 CHIP-TAN 10UF 6.3WV

C536,537 CK73FB1E104K CHIP C 0.10UF K

C538 CK73GB1E223K CHIP C 0.022UF K

C539 CC73GCH1H470J CHIP C 47PF J

C540 CK73FB1E104K CHIP C 0.10UF K

C541 CK73GB1H102K CHIP C 1000PF K

C542 CK73FB1E104K CHIP C 0.10UF K

C543 CK73GB1H102K CHIP C 1000PF K

C544 CC73GCH1H121J CHIP C 120PF J

C545 CK73GB1E103K CHIP C 0.010UF K

C546 CK73FB1E104K CHIP C 0.10UF K

C547 CK73GB1E223K CHIP C 0.022UF K

C548 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C549 CK73GB1H222K CHIP C 2200PF K

C550 CK73FB1E104K CHIP C 0.10UF K

C551 CK73FB1E333K CHIP C 0.033UF K

C552 CC73GCH1H470J CHIP C 47PF J

C553,554 CK73FB1E104K CHIP C 0.10UF K

C555 CK73GB1H102K CHIP C 1000PF K

C557 CK73GB1E223K CHIP C 0.022UF K

C558 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C559 C92-0036-05 CHIP-ELE 4.7UF 16WV

C562 CK73GB1E103K CHIP C 0.010UF K

C563 CK73GB1H102K CHIP C 1000PF K

C565 C92-0003-05 CHIP-TAN 0.47UF 25WV

C566 CC73GCH1H100D CHIP C 10PF D

C567 CK73GB1E223K CHIP C 0.022UF K

C568 CK73GB1H102K CHIP C 1000PF K

C570 C92-0036-05 CHIP-ELE 4.7UF 16WV

C571 C92-0585-05 CHIP-TAN 4.7UF 16WV

C572,573 CC73GCH1H030C CHIP C 3.0PF C

C574 CK73GB1H472K CHIP C 4700PF K

C575 C92-0628-05 CHIP-TAN 10UF 10WV

C576 CC73GCH1H470J CHIP C 47PF J

C578 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C579 CK73GB1H472K CHIP C 4700PF K

C580-582 CK73GB1H102K CHIP C 1000PF K

C583 C92-0546-05 CHIP-TAN 68UF 6.3WV

C584 CK73FB1E104K CHIP C 0.10UF K

C585 CC73FCH1H751J CHIP C 750PF J

C586 CC73GCH1H180J CHIP C 18PF J

C587 CK73GB1H122K CHIP C 1200PF K

C588 CC73GCH1H070D CHIP C 7.0PF D

C589 CC73GCH1H181J CHIP C 180PF J

C590 CK73GB1H332K CHIP C 3300PF K

C591 CC73GCH1H180J CHIP C 18PF J

C592 CK73GB1H102K CHIP C 1000PF K

C593 C92-0633-05 CHIP-TAN 22UF 10WV

C594 CK73GB1E103K CHIP C 0.010UF K

C595-597 CK73GB1H102K CHIP C 1000PF K

C598,599 CK73FB1E104K CHIP C 0.10UF K

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-12) : TK-790H(B)

C600 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C601 CK73GB1H102K CHIP C 1000PF K

C602 CK73GB1H562K CHIP C 5600PF K

C603 CK73GB1H102K CHIP C 1000PF K

C604,605 CK73GB1H562K CHIP C 5600PF K

C606 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C607 CK73GB1H102K CHIP C 1000PF K

C608 CK73GB1H332J CHIP C 3300PF J

C609 CK73GB1H272J CHIP C 2700PF J

C610 CK73FB1E104K CHIP C 0.10UF K

C611 CK73GB1H272J CHIP C 2700PF J

C612 C92-1341-05 ELECTRO 100UF 16WV

C613 C92-0040-05 CHIP-ELE 47UF 16WV

C614 CK73GB1H102K CHIP C 1000PF K

C615 CK73GB1H272J CHIP C 2700PF J

C616 CK73GB1E103K CHIP C 0.010UF K

C617 CK73FB1E104K CHIP C 0.10UF K

C618 CK73GB1H272J CHIP C 2700PF J

C619 C92-0721-05 ELECTRO 330UF 25WV

C620 CK73GB1E103K CHIP C 0.010UF K

C621 CK73FB1E104K CHIP C 0.10UF K

C622 CK73GB1H102K CHIP C 1000PF K

C623 C92-0040-05 CHIP-ELE 47UF 16WV

C624 CK73GB1H102K CHIP C 1000PF K

C625 CK73GB1E103K CHIP C 0.010UF K

C626 C92-0004-05 CHIP-TAN 1.0UF 16WV

C627,628 CK73FB1E104K CHIP C 0.10UF K

C629,630 CK73GB1H102K CHIP C 1000PF K

C631 CC73GCH1H101J CHIP C 100PF J

C632-639 CK73GB1H102K CHIP C 1000PF K

C640 C92-0560-05 CHIP-TAN 10UF 6.3WV

C641,642 CK73FB1E104K CHIP C 0.10UF K

C666-680 CC73GCH1H101J CHIP C 100PF J

C681 CK73GB1H102K CHIP C 1000PF K

C682,683 CC73GCH1H101J CHIP C 100PF J

C684 CK73GB1H102K CHIP C 1000PF K

C685 CC73GCH1H101J CHIP C 100PF J

C686 CK73GB1H102K CHIP C 1000PF K

C687 CK73GB1E103K CHIP C 0.010UF K

C688,689 CC73GCH1H101J CHIP C 100PF J

C690 CK73FB1E104K CHIP C 0.10UF K

C691,692 CC73GCH1H101J CHIP C 100PF J

C693 CK73GB1E103K CHIP C 0.010UF K

C694 C92-0633-05 CHIP-TAN 22UF 10WV

C695 CC73GCH1H101J CHIP C 100PF J

C696 C92-0628-05 CHIP-TAN 10UF 10WV

C697 CK73GB1E103K CHIP C 0.010UF K

C698-700 C92-0560-05 CHIP-TAN 10UF 6.3WV

C701 C92-0566-05 CHIP-TAN 10UF 6.3WV

C703-705 CK73FB1E104K CHIP C 0.10UF K

C706 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C707 CC73GCH1H560J CHIP C 56PF J

C708 CK73FB1E104K CHIP C 0.10UF K

C709 CC73GCH1H560J CHIP C 56PF J

C710 CK73GB1E123K CHIP C 0.012UF K

C711 CC73GCH1H101J CHIP C 100PF J

C712 CK73GB1E473J CHIP C 0.047UF J

TC301,302 C05-0393-05 CERAMIC TRIMMER CAP (8PF)

CN101 E04-0154-05 PIN SOCKET

CN102,103 E40-5538-05 PIN ASSY

CN104 E04-0154-05 PIN SOCKET

CN201 E40-5752-05 PIN ASSY

CN202 E40-5978-05 FLAT CABLE CONNECTOR

CN203 E04-0154-05 PIN SOCKET

CN501 E40-5703-05 PIN ASSY

CN504 E40-5661-05 PIN ASSY SOCKET

CN505 E40-5960-05 PIN ASSY

CN506 E40-5066-05 PIN ASSY

CN507 E40-5751-05 PIN ASSY

CN508 E40-5701-05 PIN ASSY

W501 E37-0707-05 LEAD WIRE WITH CONNECTOR

A102 F10-2278-04 SHIELDING PLATE (MCF)

F501 F53-0128-05 FUSE (0.5A)

F502 F53-0108-05 FUSE (1.8A)

CF101 L72-0916-05 CERAMIC FILTER (455KHZ)

CF102 L72-0939-05 CERAMIC FILTER (455KHZ)

CF103 L72-0916-05 CERAMIC FILTER (455KHZ)

CF104 L72-0939-05 CERAMIC FILTER (455KHZ)

L101 L40-8272-48 SMALL FIXED INDUCTOR

L102 L40-3382-48 SMALL FIXED INDUCTOR

L103 L40-3372-48 SMALL FIXED INDUCTOR

L104 L40-3382-48 SMALL FIXED INDUCTOR

L105 L40-8272-48 SMALL FIXED INDUCTOR

L107 L40-2782-48 SMALL FIXED INDUCTOR

L109 L40-6885-34 SMALL FIXED INDUCTOR (680NH)

L110-112 L34-4080-05 COIL

L114,115 L40-3375-34 SMALL FIXED INDUCTOR (33NH)

L117 L34-4527-05 COIL

L118,119 L34-4526-05 COIL

L120 L34-4527-05 COIL

L121 L40-3975-34 SMALL FIXED INDUCTOR (39NH)

L122 L34-4526-05 COIL

L123 L34-4527-05 COIL

L126 L40-1095-34 SMALL FIXED INDUCTOR (1UH)

L127 L34-4530-05 COIL

L128 L40-1885-34 SMALL FIXED INDUCTOR (180NH)

L129 L40-1281-37 SMALL FIXED INDUCTOR (0.120UH)

L130 L40-3381-37 SMALL FIXED INDUCTOR (0.330UH)

L131 L40-3375-34 SMALL FIXED INDUCTOR (33NH)

L132,133 L40-2772-48 SMALL FIXED INDUCTOR

L134 L40-1095-34 SMALL FIXED INDUCTOR (1UH)

L135,136 L40-1005-34 SMALL FIXED INDUCTOR (10UH)

L201 L40-6875-34 SMALL FIXED INDUCTOR (68NH)

L202 L40-8271-34 SMALL FIXED INDUCTOR (82NH)

L301-304 L33-1268-15 SMALL FIXED INDUCTOR

L305,306 ✽L34-4592-05 AIR-CORE COIL

L307-309 L33-1268-15 SMALL FIXED INDUCTOR

L310 L40-8271-34 SMALL FIXED INDUCTOR (82NH)

L311 L40-1085-34 SMALL FIXED INDUCTOR (100NH)

L312 L92-0148-05 FERRITE CHIP

L313,314 L40-3975-34 SMALL FIXED INDUCTOR (39NH)

L501,502 L40-1005-34 SMALL FIXED INDUCTOR (10UH)

X101 L77-1736-05 CRYSTAL RESONATOR (45.305MHZ)

X301 ✽L77-1798-05 VCXO (16.8MHZ)

X501 L77-1708-05 CRYSTAL RESONATOR (3.579545MHZ)

X502 L77-1863-05 CRYSTAL RESONATOR (12.0MHZ)

XF101 L71-0512-05 MCF (44.85MHZ WIDE)

XF102 L71-0513-05 MCF (44.85MHZ NARROW)

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-12) : TK-790H(B)

R101 RK73GB1J470J CHIP R 47 J 1/16W

R102 RK73GB1J472J CHIP R 4.7K J 1/16W

R103 RK73GB1J102J CHIP R 1.0K J 1/16W

R104 RK73GB1J120J CHIP R 12 J 1/16W

R105 RK73GB1J821J CHIP R 820 J 1/16W

R106 RK73GB1J330J CHIP R 33 J 1/16W

R107 RK73GB1J821J CHIP R 820 J 1/16W

R108 RK73GB1J334J CHIP R 330K J 1/16W

R109 RK73GB1J332J CHIP R 3.3K J 1/16W

R110,111 RK73GB1J104J CHIP R 100K J 1/16W

R112 RK73GB1J102J CHIP R 1.0K J 1/16W

R113-115 RK73GB1J104J CHIP R 100K J 1/16W

R116 R92-1252-05 CHIP R 0 OHM

R117 RK73GB1J101J CHIP R 100 J 1/16W

R118 RK73GB1J473J CHIP R 47K J 1/16W

R119 RK73GB1J560J CHIP R 56 J 1/16W

R120 RK73GB1J102J CHIP R 1.0K J 1/16W

R121 RK73FB2A821J CHIP R 820 J 1/10W

R122 RK73FB2A5R6J CHIP R 5.6 J 1/10W

R123 RK73GB1J270J CHIP R 27 J 1/16W

R124 RK73FB2A821J CHIP R 820 J 1/10W

R125-127 RK73GB1J222J CHIP R 2.2K J 1/16W

R128 RK73GB1J223J CHIP R 22K J 1/16W

R129 R92-1252-05 CHIP R 0 OHM

R132 RK73GB1J103J CHIP R 10K J 1/16W

R133 RK73GB1J472J CHIP R 4.7K J 1/16W

R134 RK73GB1J330J CHIP R 33 J 1/16W

R135 RK73GB1J220J CHIP R 22 J 1/16W

R136-138 RK73GB1J222J CHIP R 2.2K J 1/16W

R139 RK73GB1J473J CHIP R 47K J 1/16W

R141 RK73GB1J102J CHIP R 1.0K J 1/16W

R142 RK73GB1J472J CHIP R 4.7K J 1/16W

R143 RK73GB1J470J CHIP R 47 J 1/16W

R144 RK73GB1J153J CHIP R 15K J 1/16W

R145,146 RK73GB1J223J CHIP R 22K J 1/16W

R148 RK73GB1J223J CHIP R 22K J 1/16W

R149 RK73GB1J274J CHIP R 270K J 1/16W

R150,151 RK73GB1J223J CHIP R 22K J 1/16W

R152 RK73GB1J472J CHIP R 4.7K J 1/16W

R153 RK73GB1J182J CHIP R 1.8K J 1/16W

R155 RK73GB1J472J CHIP R 4.7K J 1/16W

R156,157 RK73GB1J332J CHIP R 3.3K J 1/16W

R158 RK73GB1J821J CHIP R 820 J 1/16W

R159 RK73GB1J5R6J CHIP R 5.6 J 1/16W

R160 RK73GB1J821J CHIP R 820 J 1/16W

R161 R92-1252-05 CHIP R 0 OHM

R162 RK73GB1J682J CHIP R 6.8K J 1/16W

R163 RK73GB1J182J CHIP R 1.8K J 1/16W

R164 RK73GB1J101J CHIP R 100 J 1/16W

R165 RK73GB1J393J CHIP R 39K J 1/16W

R166 RK73GB1J220J CHIP R 22 J 1/16W

R167 RK73GB1J102J CHIP R 1.0K J 1/16W

R201 RK73GB1J271J CHIP R 270 J 1/16W

R202 RK73GB1J180J CHIP R 18 J 1/16W

R203 RK73GB1J102J CHIP R 1.0K J 1/16W

R204 RK73GB1J271J CHIP R 270 J 1/16W

R205 RK73GB1J222J CHIP R 2.2K J 1/16W

R206 RK73GB1J103J CHIP R 10K J 1/16W

R207 RK73GB1J100J CHIP R 10 J 1/16W

R208 RK73GB1J222J CHIP R 2.2K J 1/16W

R209 RK73GB1J560J CHIP R 56 J 1/16W

R210 RK73GB1J470J CHIP R 47 J 1/16W

R211 RK73GB1J152J CHIP R 1.5K J 1/16W

R212 RK73GB1J472J CHIP R 4.7K J 1/16W

R213 RK73GB1J473J CHIP R 47K J 1/16W

R214 RK73GB1J100J CHIP R 10 J 1/16W

R215 RK73GB1J473J CHIP R 47K J 1/16W

R216 R92-0685-05 CHIP R 22 J 1/2W

R217 RK73GB1J472J CHIP R 4.7K J 1/16W

R218 RK73FB2A821J CHIP R 820 J 1/10W

R219,220 RK73FB2A100J CHIP R 10 J 1/10W

R221 RK73FB2A821J CHIP R 820 J 1/10W

R301-304 RK73GB1J103J CHIP R 10K J 1/16W

R305 R92-1252-05 CHIP R 0 OHM

R306 RK73GB1J560J CHIP R 56 J 1/16W

R307,308 RK73GB1J100J CHIP R 10 J 1/16W

R309 R92-1252-05 CHIP R 0 OHM

R310,311 RK73GB1J152J CHIP R 1.5K J 1/16W

R312 RK73GB1J682J CHIP R 6.8K J 1/16W

R313 RK73GB1J223J CHIP R 22K J 1/16W

R314,315 RK73GB1J221J CHIP R 220 J 1/16W

R316 RK73GB1J222J CHIP R 2.2K J 1/16W

R317 RK73GB1J474J CHIP R 470K J 1/16W

R318 RK73FB2A152J CHIP R 1.5K J 1/10W

R319 RK73GB1J102J CHIP R 1.0K J 1/16W

R320-323 R92-1252-05 CHIP R 0 OHM

R324 RK73GB1J223J CHIP R 22K J 1/16W

R325 RK73GB1J103J CHIP R 10K J 1/16W

R326 RK73GB1J330J CHIP R 33 J 1/16W

R327 RK73GB1J104J CHIP R 100K J 1/16W

R328 RK73GB1J330J CHIP R 33 J 1/16W

R329 RK73GB1J471J CHIP R 470 J 1/16W

R330 RK73GB1J331J CHIP R 330 J 1/16W

R331,332 RK73GB1J472J CHIP R 4.7K J 1/16W

R333 RK73GB1J470J CHIP R 47 J 1/16W

R334 RK73GB1J472J CHIP R 4.7K J 1/16W

R335 RK73GB1J470J CHIP R 47 J 1/16W

R336,337 RK73GB1J472J CHIP R 4.7K J 1/16W

R338 RK73GB1J473J CHIP R 47K J 1/16W

R339 RK73GB1J103J CHIP R 10K J 1/16W

R340 RK73GB1J330J CHIP R 33 J 1/16W

R341 RK73GB1J331J CHIP R 330 J 1/16W

R342 RK73GB1J223J CHIP R 22K J 1/16W

R343 RK73GB1J103J CHIP R 10K J 1/16W

R344 RK73GB1J223J CHIP R 22K J 1/16W

R345 RK73GB1J103J CHIP R 10K J 1/16W

R346 RK73GB1J330J CHIP R 33 J 1/16W

R347 RK73GB1J471J CHIP R 470 J 1/16W

R348 RK73GB1J331J CHIP R 330 J 1/16W

R349 RK73GB1J330J CHIP R 33 J 1/16W

R350 RK73GB1J101J CHIP R 100 J 1/16W

R351,352 RK73GB1J102J CHIP R 1.0K J 1/16W

R354,355 RK73GB1J220J CHIP R 22 J 1/16W

R357 R92-1252-05 CHIP R 0 OHM

R358 RK73GB1J331J CHIP R 330 J 1/16W

R361 RK73GB1J102J CHIP R 1.0K J 1/16W

R366 R92-1252-05 CHIP R 0 OHM

R501 RK73GB1J333J CHIP R 33K J 1/16W

R502 RK73GB1J471J CHIP R 470 J 1/16W

R504 R92-0670-05 CHIP R 0 OHM

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-12) : TK-790H(B)

R505 RK73GB1J103J CHIP R 10K J 1/16W

R507 RK73GB1J223J CHIP R 22K J 1/16W

R508 RK73GB1J102J CHIP R 1.0K J 1/16W

R509-511 RK73GB1J473J CHIP R 47K J 1/16W

R512 RK73GB1J184J CHIP R 180K J 1/16W

R513 RK73GB1J223J CHIP R 22K J 1/16W

R514 RK73GB1J184J CHIP R 180K J 1/16W

R515 R92-0670-05 CHIP R 0 OHM

R516 RK73GB1J104J CHIP R 100K J 1/16W

R517 ✽RK73GH1J104D CHIP R 100K D 1/16W

R518 R92-1252-05 CHIP R 0 OHM

R519 RK73GB1J104J CHIP R 100K J 1/16W

R520 ✽RK73GH1J334D CHIP R 330K D 1/16W

R521 RK73GB1J102J CHIP R 1.0K J 1/16W

R522 RK73GH1J913D CHIP R 91K D 1/16W

R523 RK73GB1J474J CHIP R 470K J 1/16W

R524 RK73GH1J224D CHIP R 220K D 1/16W

R525 RK73GB1J472J CHIP R 4.7K J 1/16W

R526 RK73GB1J104J CHIP R 100K J 1/16W

R527 RK73GB1J223J CHIP R 22K J 1/16W

R528 RK73GB1J104J CHIP R 100K J 1/16W

R529,530 RK73GB1J334J CHIP R 330K J 1/16W

R531 RK73GB1J154J CHIP R 150K J 1/16W

R532 RK73GB1J474J CHIP R 470K J 1/16W

R533 RN73GH1J473D CHIP R 47K D 1/16W

R534 RN73GH1J563D CHIP R 56K D 1/16W

R535 RK73GB1J103J CHIP R 10K J 1/16W

R536 RK73GB1J681J CHIP R 680 J 1/16W

R537 RK73GB1J472J CHIP R 4.7K J 1/16W

R539 RK73GB1J561J CHIP R 560 J 1/16W

R541 R92-0670-05 CHIP R 0 OHM

R542 RK73GB1J470J CHIP R 47 J 1/16W

R543 RK73GB1J220J CHIP R 22 J 1/16W

R545 RK73GB1J564J CHIP R 560K J 1/16W

R546 R92-0670-05 CHIP R 0 OHM

R547 R92-1252-05 CHIP R 0 OHM

R549 RK73GB1J153J CHIP R 15K J 1/16W

R550 RK73GB1J683J CHIP R 68K J 1/16W

R552 RK73GB1J101J CHIP R 100 J 1/16W

R553 RK73GB1J822J CHIP R 8.2K J 1/16W

R557,558 RK73GB1J104J CHIP R 100K J 1/16W

R559 RK73GB1J473J CHIP R 47K J 1/16W

R561 RK73GB1J102J CHIP R 1.0K J 1/16W

R562 RK73GB1J274J CHIP R 270K J 1/16W

R563 RK73GB1J104J CHIP R 100K J 1/16W

R564 RK73GB1J474J CHIP R 470K J 1/16W

R565 RK73GB1J123J CHIP R 12K J 1/16W

R566 RK73GB1J153J CHIP R 15K J 1/16W

R567 RK73GB1J224J CHIP R 220K J 1/16W

R568 R92-1252-05 CHIP R 0 OHM

R570 RK73GB1J223J CHIP R 22K J 1/16W

R572 RK73GB1J104J CHIP R 100K J 1/16W

R573 RK73GB1J274J CHIP R 270K J 1/16W

R574 RK73GB1J102J CHIP R 1.0K J 1/16W

R575,576 RK73GB1J104J CHIP R 100K J 1/16W

R577 RK73GB1J122J CHIP R 1.2K J 1/16W

R578 RK73GB1J102J CHIP R 1.0K J 1/16W

R579,580 RK73GB1J823J CHIP R 82K J 1/16W

R581,582 RK73GB1J683J CHIP R 68K J 1/16W

R583 R92-0670-05 CHIP R 0 OHM

R584 RK73GB1J333J CHIP R 33K J 1/16W

R586 RK73GB1J104J CHIP R 100K J 1/16W

R587 R92-0670-05 CHIP R 0 OHM

R588 RK73GB1J473J CHIP R 47K J 1/16W

R589 RK73GB1J223J CHIP R 22K J 1/16W

R591,592 RK73GB1J124J CHIP R 120K J 1/16W

R594-597 RK73GB1J473J CHIP R 47K J 1/16W

R598 RK73GB1J332J CHIP R 3.3K J 1/16W

R599,600 RK73GB1J473J CHIP R 47K J 1/16W

R601 RK73GB1J472J CHIP R 4.7K J 1/16W

R602 RK73FB2A473J CHIP R 47K J 1/10W

R603 RK73GB1J103J CHIP R 10K J 1/16W

R604 R92-0670-05 CHIP R 0 OHM

R605 RK73GB1J333J CHIP R 33K J 1/16W

R606 RK73GB1J154J CHIP R 150K J 1/16W

R607 R92-1252-05 CHIP R 0 OHM

R608 RK73GB1J123J CHIP R 12K J 1/16W

R609 RK73GB1J153J CHIP R 15K J 1/16W

R611 RK73GB1J474J CHIP R 470K J 1/16W

R612 RK73GB1J823J CHIP R 82K J 1/16W

R613 RK73GB1J393J CHIP R 39K J 1/16W

R615 RK73GB1J122J CHIP R 1.2K J 1/16W

R616 RK73GB1J152J CHIP R 1.5K J 1/16W

R617 RN73GH1J274D CHIP R 270K D 1/16W

R618 RN73GH1J334D CHIP R 330K D 1/16W

R619,620 RN73GH1J274D CHIP R 270K D 1/16W

R621 RK73GB1J472J CHIP R 4.7K J 1/16W

R622 RK73GB1J473J CHIP R 47K J 1/16W

R623 RN73GH1J274D CHIP R 270K D 1/16W

R624 RK73GB1J103J CHIP R 10K J 1/16W

R625 RK73GB1J684J CHIP R 680K J 1/16W

R626 RK73GB1J822J CHIP R 8.2K J 1/16W

R627 RN73GH1J274D CHIP R 270K D 1/16W

R628 R92-0670-05 CHIP R 0 OHM

R629 RN73GH1J563D CHIP R 56K D 1/16W

R630 RN73GH1J473D CHIP R 47K D 1/16W

R631 RK73GB1J104J CHIP R 100K J 1/16W

R632 RK73GB1J102J CHIP R 1.0K J 1/16W

R633,634 RK73GB1J103J CHIP R 10K J 1/16W

R635 R92-0670-05 CHIP R 0 OHM

R636 ✽RK73GH1J104D CHIP R 100K

R638 RK73GH1J223D CHIP R 22K

R639 RK73GB1J473J CHIP R 47K J 1/16W

R641 R92-0670-05 CHIP R 0 OHM

R642-648 RK73FB2A102J CHIP R 1.0K J 1/10W

R652 RK73FB2A102J CHIP R 1.0K J 1/10W

R654-656 RK73FB2A102J CHIP R 1.0K J 1/10W

R657 R92-0670-05 CHIP R 0 OHM

R658 RK73GB1J473J CHIP R 47K J 1/16W

R659 RK73GB1J563J CHIP R 56K J 1/16W

R661 R92-0670-05 CHIP R 0 OHM

R662 RK73GB1J472J CHIP R 4.7K J 1/16W

R663 RK73GB1J473J CHIP R 47K J 1/16W

R664 RK73GB1J333J CHIP R 33K J 1/16W

R665 RK73GB1J104J CHIP R 100K J 1/16W

R666,667 R92-0670-05 CHIP R 0 OHM

R668 R92-1252-05 CHIP R 0 OHM

R670 R92-0670-05 CHIP R 0 OHM

R671 RK73GB1J683J CHIP R 68K J 1/16W

R672 RK73GB1J473J CHIP R 47K J 1/16W

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-12) : TK-790H(B)

R674,675 RK73GB1J472J CHIP R 4.7K J 1/16W

R676 RK73GB1J473J CHIP R 47K J 1/16W

R677 RK73GB1J472J CHIP R 4.7K J 1/16W

R678,679 RK73GB1J332J CHIP R 3.3K J 1/16W

R680 RK73GB1J104J CHIP R 100K J 1/16W

R690,691 R92-0670-05 CHIP R 0 OHM

R693 RK73GB1J103J CHIP R 10K J 1/16W

R695 R92-1252-05 CHIP R 0 OHM

R697 R92-1252-05 CHIP R 0 OHM

R698 RK73GB1J472J CHIP R 4.7K J 1/16W

R699 R92-1252-05 CHIP R 0 OHM

R700 RK73GB1J220J CHIP R 22 J 1/16W

R701 RK73GB1J103J CHIP R 10K J 1/16W

R702 RK73GB1J472J CHIP R 4.7K J 1/16W

R703 RK73GB1J473J CHIP R 47K J 1/16W

R706 R92-0670-05 CHIP R 0 OHM

R707-713 RK73GB1J474J CHIP R 470K J 1/16W

R714 RK73GB1J104J CHIP R 100K J 1/16W

R715 RK73GB1J474J CHIP R 470K J 1/16W

R716 RK73GB1J104J CHIP R 100K J 1/16W

R717 RK73GB1J102J CHIP R 1.0K J 1/16W

R718 RK73GB1J333J CHIP R 33K J 1/16W

R719 RS14DB3D2R2J

FL-PROOF RS

2.2 J 2W

R720 R92-0670-05 CHIP R 0 OHM

R721 RK73GB1J393J CHIP R 39K J 1/16W

R722 RK73GB1J184J CHIP R 180K J 1/16W

R723 R92-0670-05 CHIP R 0 OHM

R724 RK73GB1J683J CHIP R 68K J 1/16W

R725 RK73GB1J333J CHIP R 33K J 1/16W

R726 RK73GB1J122J CHIP R 1.2K J 1/16W

R727 RK73GB1J473J CHIP R 47K J 1/16W

R728 R92-0670-05 CHIP R 0 OHM

R729-736 RK73GB1J472J CHIP R 4.7K J 1/16W

R740,741 RK73GB1J103J CHIP R 10K J 1/16W

R742 R92-0670-05 CHIP R 0 OHM

R744 RK73GB1J104J CHIP R 100K J 1/16W

R746 R92-1252-05 CHIP R 0 OHM

R747 R92-0670-05 CHIP R 0 OHM

R748 R92-1252-05 CHIP R 0 OHM

VR501 R12-6417-05 TRIMMING POT. (1K)

D101 1SS355 DIODE

D102 1SV269 VARIABLE CAPACITANCE DIODE

D103 MA742 DIODE

D104,105 1SV269 VARIABLE CAPACITANCE DIODE

D106-109 DAN235K DIODE

D201,202 DA204K DIODE

D301-304 1SV282 VARIABLE CAPACITANCE DIODE

D305 1SV214 VARIABLE CAPACITANCE DIODE

D306 DAN235K DIODE

D501 02CZ18(X,Y) ZENER DIODE

D502,503 1SS355 DIODE

D504 02CZ5.6(X,Y) ZENER DIODE

D505 1SS355 DIODE

D506 1SS301 DIODE

D507 02CZ15(X,Y) ZENER DIODE

D508 1SS355 DIODE

D511 1SS301 DIODE

D512 1SS355 DIODE

D513-517 DA204U DIODE

D519 DA204U DIODE

D521 DA204U DIODE

D523,524 DA204U DIODE

D526,527 DA204U DIODE

D528,529 1SS355 DIODE

IC101 TA31136FN IC (FM IC)

IC201 BU4094BCF IC (SHIFT REGISTER)

IC202 NJM78L05UA IC (AVR)

IC203 AN8009M IC (AVR)

IC301 SA7025DK IC (PLL IC)

IC501 TC4013BF(N) IC (D FF)

IC502 NJM4558M IC (LPF)

IC503 TA7808S IC (AVR)

IC504 TC35453F IC (AUDIO PROCESSOR)

IC505 NJM4558M IC (HPF/IDC)

IC506 L78LR05B-FA IC (AVR)

IC508 NJM4558M IC (LIMITER/BUFFER AMP)

IC509 MC33172D IC (BUFFER AMP)

IC510 NJM4558M IC (SUMMING AMP/LPF)

IC511 PCD3312CT IC (DTMF ENCODER)

IC512 M62364FP IC (D/A CONVERTER)

IC513 NJM4558M IC (LPF/SUMMING AMP)

IC514 AT24C64N10SI27 IC (EEPROM)

IC515 BU4066BCF IC (ANALOG SWITCH)

IC516 ✽784214GC0518EU IC (CPU)

IC517 BU4094BCF IC (SHIFT REGISTER)

IC518 NJM4558M IC (BUFFER AMP)

IC519 AT29C020-90TI IC (FLASH ROM)

IC520 TC7S02F IC (NOR GATE)

IC521 NJM4558M IC (BUFFER AMP)

IC522 TDA8561Q IC (AUDIO POWER AMP)

IC523 BU4094BCF IC (SHIFT REGISTER)

IC524 NJM4558M IC (BUFFER AMP/DE-EMPHASIS)

IC525 LC73872M IC (DTMF DECODER)

IC526 TA75S01F IC (COMPANDER AMP)

Q101,102 2SC3357 TRANSISTOR

Q104 2SC3357 TRANSISTOR

Q105 DTA144EUA DIGITAL TRANSISTOR

Q106 DTC144EUA DIGITAL TRANSISTOR

Q107 2SC4215(Y) TRANSISTOR

Q108 DTC144EUA DIGITAL TRANSISTOR

Q109 2SC4617(S) TRANSISTOR

Q201 2SC3357 TRANSISTOR

Q202 2SB1132(Q,R) TRANSISTOR

Q203 DTC114EUA DIGITAL TRANSISTOR

Q204 2SC2954 TRANSISTOR

Q205 DTC114EUA DIGITAL TRANSISTOR

Q206 2SB1132(Q,R) TRANSISTOR

Q301,302 2SC4116(GR) TRANSISTOR

Q303,304 2SC3722K(S) TRANSISTOR

Q305,306 2SK508NV(K52) FET

Q307,308 2SC4116(Y) TRANSISTOR

Q309 DTC114EUA DIGITAL TRANSISTOR

Q310,311 2SC4215(Y) TRANSISTOR

Q312 2SC3120 TRANSISTOR

Q501 DTA114EUA DIGITAL TRANSISTOR

Q502,503 DTC114EUA DIGITAL TRANSISTOR

Q504 DTC363EK DIGITAL TRANSISTOR

Q505 DTC144EUA DIGITAL TRANSISTOR

Q506 DTA114YUA DIGITAL TRANSISTOR

Q507 DTC114YUA DIGITAL TRANSISTOR

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

TX-RX UNIT (X57-5610-12) : TK-790H(B)

KCH-10

DISPLAY UNIT (X54-3190-20) : KCH-10

Q509-513 DTC144EUA DIGITAL TRANSISTOR

Q514 DTA144TKA DIGITAL TRANSISTOR

Q516 DTA114TUA DIGITAL TRANSISTOR

Q517 DTC144EUA DIGITAL TRANSISTOR

Q518 DTA114EUA DIGITAL TRANSISTOR

Q519 2SJ506(S) FET

Q520 DTD114EK DIGITAL TRANSISTOR

Q522 2SC4215(Y) TRANSISTOR

Q523,524 DTC114TU DIGITAL TRANSISTOR

Q525 DTC144EUA DIGITAL TRANSISTOR

Q526 DTA114TUA DIGITAL TRANSISTOR

Q527 DTC144EUA DIGITAL TRANSISTOR

Q528 DTA114TUA DIGITAL TRANSISTOR

Q529,530 DTC144EUA DIGITAL TRANSISTOR

Q531 DTA114TUA DIGITAL TRANSISTOR

Q532-536 DTC144EUA DIGITAL TRANSISTOR

Q537-540 DTD114EK DIGITAL TRANSISTOR

Q541 DTC114EUA DIGITAL TRANSISTOR

Q542 DTA114EUA DIGITAL TRANSISTOR

Q543,544 DTC114EUA DIGITAL TRANSISTOR

TH101 157-503-53006 THERMISTOR

TH501 157-302-53008 THERMISTOR

A101 W02-1939-05 DBM

201 3E ✽A62-0606-13 PANEL ASSY

203 1F E37-0787-05 LEAD WIRE WITH CONNECTOR (SP)

205 3F G53-0838-03 PACKING (PANEL ASSY)

206 1E G53-0839-14 PACKING (SP)

207 3E ✽G53-1523-04 PACKING (VOL)

208 2N H10-6622-02 POLYSTYRENE FOAMED FIXTURE

209 1M H11-0894-04 POLYSTYRENE FOAMED BOARD

210 1N H13-1059-04 CARTON BOARD

211 1N H25-0029-04 PROTECTION BAG (60/110/0.07)

212 2M H25-0103-04 PROTECTION BAG (125/250/0.07)

213 2N H25-0117-04 PROTECTION BAG (80/250/0.07)

214 3M H52-1271-02 ITEM CARTON CASE

217 2E ✽J21-8417-04

HARDWARE FIXTURE (MIC CONNECTOR)

216 2E J39-0625-04 SPACER (TX-BUSY)

218 3E K29-4664-04 KNOB (VOL,UP/DOWN)

219 2N K29-4704-04 KNOB ACSY

220 2E K29-5251-12 KEY TOP

221 2N K29-5276-03 KNOB ACSY

222 2N K29-5277-03 KNOB ACSY

223 2N K29-5305-03 KNOB ACSY

U 1E N87-2605-46 BRAZIER HEAD TAPTITE SCREW

V 1E,1F N87-2608-46 BRAZIER HEAD TAPTITE SCREW

W 2E,2F N87-3006-46 BRAZIER HEAD TAPTITE SCREW

225 1N N99-0364-05 SCREW SET ACSY

227 2F T07-0265-05 SPEAKER

- B11-1148-14 ILLUMINATION GUIDE

- B11-1149-04 FILTER

D6-11 B30-2140-05 LED (YEL)

D12 B30-2194-05 LED (GREEN)

D13 B30-2193-05 LED (RED)

ED1 B38-0800-05 LCD

C11 CC73GCH1H101J CHIP C 100PF J

C17 CC73GCH1H101J CHIP C 100PF J

C20 CK73GB1H102K CHIP C 1000PF K

C22 CK73GB1E103K CHIP C 0.010UF K

C23,24 CC73GCH1H101J CHIP C 100PF J

C25 CK73GB1E103K CHIP C 0.010UF K

C27 CK73GB1E223K CHIP C 0.022UF K

C28,29 CK73GB1E103K CHIP C 0.010UF K

C30 CC73GCH1H101J CHIP C 100PF J

C32 CC73GCH1H101J CHIP C 100PF J

C35-37 CK73GB1E103K CHIP C 0.010UF K

C43-47 CC73GCH1H101J CHIP C 100PF J

C48-50 CK73GB1H102K CHIP C 1000PF K

-✽E29-1192-04 INTER CONNECTOR

CN1 E40-5953-05 PIN ASSY

CN2 E40-5704-05 PIN ASSY

CN3 E40-5952-05 PIN ASSY

CN4 E40-5738-05 PIN ASSY

CN5 E40-5957-05 PIN ASSY SOCKET

CN6 E40-5958-05 PIN ASSY

J1 ✽E56-0410-15

RF COAXIAL RECEPTACLE (MIC CONNECTOR)

W1 E37-0703-05 LEAD WIRE WITH CONNECTOR

X1 L78-0043-05 RESONATOR (4.19MHZ)

R1,2 RK73GB1J102J CHIP R 1.0K J 1/16W

R5 RK73FB2A561J CHIP R 560 J 1/10W

R7 RK73FB2A331J CHIP R 330 J 1/10W

R8 R92-2023-05 CHIP R 820 J 1/2W

R9 RK73FB2A181J CHIP R 180 J 1/10W

R10 R92-0670-05 CHIP R 0 OHM

R11 RK73FB2A331J CHIP R 330 J 1/10W

R12 RK73FB2A181J CHIP R 180 J 1/10W

R13,14 RK73GB1J102J CHIP R 1.0K J 1/16W

R15 RK73FB2A151J CHIP R 150 J 1/10W

R16 RK73GB1J103J CHIP R 10K J 1/16W

R17 RK73GB1J331J CHIP R 330 J 1/16W

R18 R92-1281-05 FUSE R 4.7 J 1/4W

R21 RK73GB1J473J CHIP R 47K J 1/16W

R23 RK73GB1J473J CHIP R 47K J 1/16W

R24 RK73GB1J101J CHIP R 100 J 1/16W

R26 RK73GB1J102J CHIP R 1.0K J 1/16W

R29-33 RK73GB1J102J CHIP R 1.0K J 1/16W

R34,35 RK73GB1J473J CHIP R 47K J 1/16W

R36 RK73GB1J102J CHIP R 1.0K J 1/16W

R38 R92-1252-05 CHIP R 0 OHM

R39,40 RK73GB1J102J CHIP R 1.0K J 1/16W

R41-43 RK73GB1J473J CHIP R 47K J 1/16W

R45 R92-2063-05 CHIP R 680 J 1/2W

R47 R92-2023-05 CHIP R 820 J 1/2W

R48 RK73GB1J472J CHIP R 4.7K J 1/16W

R49-51 RK73GB1J473J CHIP R 47K J 1/16W

KCH-10

DISPLAY UNIT (X54-3190-20) : KCH-10

TK-790/(B)/H(B)

PARTS LIST

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

R52 RK73GB1J822J CHIP R 8.2K J 1/16W

R54 RK73GB1J103J CHIP R 10K J 1/16W

R55 RK73GB1J682J CHIP R 6.8K J 1/16W

R67 R92-1252-05 CHIP R 0 OHM

VR1 R31-0607-05 VARIABLE RESISTOR (10K)

S1 S40-1420-05 TACT SWITCH

S2,3 S70-0410-15 TACT SWITCH

S5-9 S70-0410-15 TACT SWITCH

D1,2 DA204U DIODE

D5 02CZ9.1(X,Y) ZENER DIODE

D16,17 DA204U DIODE

D19-21 DA204U DIODE

D24 1SS301 DIODE

D25 MA2S111 DIODE

IC1 NJM78L05UA IC (AVR)

IC2 RH5VL42C IC (RESET)

IC3 AT24C64N10SI27 IC (EEPROM)

IC4 ✽78064GCA458EU IC (CPU/LCD DRIVER)

Q1 2SC2873(Y) TRANSISTOR

Q3-7 DTC144EU DIGITAL TRANSISTOR

Q9 DTC144EU DIGITAL TRANSISTOR

Q11 DTC144EU DIGITAL TRANSISTOR

Q12,13 DTC114TU DIGITAL TRANSISTOR

Q14,15 DTD114EK DIGITAL TRANSISTOR

S4 W02-0393-05 ENCODER

301 3G ✽A62-0607-13 PANEL ASSY

303 3H G53-0838-03 PACKING (PANEL ASSY)

304 3G ✽G53-1523-04 PACKING (VOL)

305 2P H10-6622-02 POLYSTYRENE FOAMED FIXTURE

306 1O H11-0894-04 POLYSTYRENE FOAMED BOARD

307 1P H13-1059-04 CARTON BOARD

308 2P H25-0029-04 PROTECTION BAG (60/110/0.07)

309 2O H25-0103-04 PROTECTION BAG (125/250/0.07)

310 2P H25-0117-04 PROTECTION BAG (80/250/0.07)

311 3O H52-1271-02 ITEM CARTON CASE

312 1G ✽J21-8417-04

HARDWARE FIXTURE (MIC CONNECTOR)

313 1G J39-0625-04 SPACER (TX-BUSY)

315 3G K29-4664-04 KNOB (VOL,UP/DOWN)

316 2P K29-4704-04 KNOB ACSY

317 2H K29-5252-12 KEY TOP

318 2P K29-5276-03 KNOB ACSY

319 2P K29-5277-03 KNOB ACSY

320 2P K29-5305-03 KNOB ACSY

X 1G N87-2605-46 BRAZIER HEAD TAPTITE SCREW

Y 1G,1H N87-2608-46 BRAZIER HEAD TAPTITE SCREW

Z 1G,2H N87-3008-46 BRAZIER HEAD TAPTITE SCREW

322 1P N99-0364-05 SCREW SET ACSY

KCH-11

D6 B30-2194-05 LED (GREEN)

D7 B30-2193-05 LED (RED)

ED1 ✽B38-0801-15 LCD ASSY

C9 CC73GCH1H101J CHIP C 100PF J

C14 CC73GCH1H101J CHIP C 100PF J

C20 CK73GB1H102K CHIP C 1000PF K

C22 CK73GB1E103K CHIP C 0.010UF K

C23,24 CC73GCH1H101J CHIP C 100PF J

C25 CK73GB1E103K CHIP C 0.010UF K

C27 CK73GB1E223K CHIP C 0.022UF K

C28,29 CK73GB1E103K CHIP C 0.010UF K

C30 CC73GCH1H101J CHIP C 100PF J

C32 CC73GCH1H101J CHIP C 100PF J

C35,36 CK73GB1E103K CHIP C 0.010UF K

C40 CK73GB1E103K CHIP C 0.010UF K

C50-60 CC73GCH1H101J CHIP C 100PF J

C61-67 CK73GB1H102K CHIP C 1000PF K

CN1 E40-5953-05 PIN ASSY

CN2 E40-5704-05 PIN ASSY

CN3 E40-5952-05 PIN ASSY

CN4 E40-5738-05 PIN ASSY

CN5 E40-5823-05 FLAT CABLE CONNECTOR

J1 ✽E56-0410-15

RF COAXIAL RECEPTACLE (MIC CONNECTOR)

W1 E37-0703-05 LEAD WIRE WITH CONNECTOR

X1 L78-0043-05 RESONATOR (4.19MHZ)

R1,2 RK73GB1J102J CHIP R 1.0K J 1/16W

R5 RK73FB2A561J CHIP R 560 J 1/10W

R6 R92-2023-05 CHIP R 820 J 1/2W

R7 R92-0670-05 CHIP R 0 OHM

R8,9 RK73GB1J102J CHIP R 1.0K J 1/16W

R10 RK73FB2A151J CHIP R 150 J 1/10W

R11 RK73GB1J103J CHIP R 10K J 1/16W

R12 RK73GB1J331J CHIP R 330 J 1/16W

R13 R92-1281-05 FUSE R 4.7 J 1/4W

R14 RK73GB1J473J CHIP R 47K J 1/16W

R16 RK73GB1J473J CHIP R 47K J 1/16W

R19,20 RK73GB1J473J CHIP R 47K J 1/16W

R21 RK73GB1J102J CHIP R 1.0K J 1/16W

R22 RK73GB1J101J CHIP R 100 J 1/16W

R24 RK73GB1J102J CHIP R 1.0K J 1/16W

R26 RK73GB1J472J CHIP R 4.7K J 1/16W

R28-32 RK73GB1J102J CHIP R 1.0K J 1/16W

R33,34 RK73GB1J473J CHIP R 47K J 1/16W

R35 RK73GB1J102J CHIP R 1.0K J 1/16W

R37,38 RK73GB1J102J CHIP R 1.0K J 1/16W

R39 RK73FB2A331J CHIP R 330 J 1/10W

R40,41 R92-2063-05 CHIP R 680 J 1/2W

R42 RK73FB2A181J CHIP R 180 J 1/10W

R43 R92-2063-05 CHIP R 680 J 1/2W

R44 R92-2023-05 CHIP R 820 J 1/2W

R45-56 RK73GB1J473J CHIP R 47K J 1/16W

R57-62 RK73GB1J102J CHIP R 1.0K J 1/16W

R63 RK73GB1J473J CHIP R 47K J 1/16W

R65 RK73GB1J103J CHIP R 10K J 1/16W

R66 RK73GB1J682J CHIP R 6.8K J 1/16W

R67 R92-1252-05 CHIP R 0 OHM

DISPLAY UNIT (X54-3200-20) : KCH-11

DISPLAY UNIT (X54-3190-20) : KCH-10

KCH-11

DISPLAY UNIT (X54-3200-20) : KCH-11

TK-790/(B)/H(B)

PARTS LIST

VR1 R31-0607-05 VARIABLE RESISTOR (10K)

S1 S40-1420-05 TACT SWITCH

S2,3 S70-0410-15 TACT SWITCH

S5-15 S70-0410-15 TACT SWITCH

D1,2 DA204U DIODE

D5 02CZ9.1(X,Y) ZENER DIODE

D11,12 DA204U DIODE

D14-16 DA204U DIODE

D18 1SS301 DIODE

D19 MA2S111 DIODE

IC1 NJM78L05UA IC (AVR)

IC2 RH5VL42C IC (RESET)

IC3 AT24C64N10SI27 IC (EEPROM)

IC4 ✽78064GCA458EU IC (CPU)

Q1 2SC2873(Y) TRANSISTOR

Q2-8 DTC144EU DIGITAL TRANSISTOR

Q9,10 DTC114TU DIGITAL TRANSISTOR

Q14,15 DTD114EK DIGITAL TRANSISTOR

S4 W02-0393-05 ENCODER

Ref. No.

Address

Parts No. Description Ref. No.

Address

Parts No. Description

New

Desti-

parts

nation

New

Desti-

parts

nation

DISPLAY UNIT (X54-3200-20) : KCH-11

TK-790/(B)/H(B)

Parts with the exploded numbers larger than 700 are not supplied.

EXPLODED VIEW (TK-790/(B))

Cx2

Gx2 Gx2

Gx2

Ex2

Lx2

Ax2

Bx2

Gx5

Cx2

Gx2

Jx2

700

TX-RX

(A/3)

Control

(B/3)

Final

(C/3)

KCH-10

KCH-11

A : N09-2292-05

B M3 x 6 (F) : N32-3006-46

C M3 x 6 (OC) BLK : N33-3006-45

D M3 x 6 (Bi) : N35-3006-46

E M3 x 8 : N67-3008-46

G M2.6 x 6 (Br-Tap) : N87-2606-46

J M2.6 x 12 (Br-Tap) : N87-2612-46

L M3 x 8 (Br-Tap) : N87-3008-46

TK-790/(B)/H(B)

Parts with the exploded numbers larger than 700 are not supplied.

EXPLODED VIEW (TK-790H(B))

102

133 124

148x2

116

147

115

114

129

123

117

111

103

118

128

127

106

132

106

101

113 113

Nx2

Rx6

Ox2

Rx4

Rx3

Px5 Tx2

Tx2

Mx2

Rx5

Nx3

Rx2

Sx2

701

TX-RX

(A/3)

Control

(B/3)

Final

KCH-10

KCH-11

M : N09-2292-05

N M3 x 6 (OC) BLK : N33-3006-45

O M3 x 6 (Bi) : N35-3006-46

P M3 x 8 : N67-3008-46

Q M4 X 8 : N68-4006-46

R M2.6 x 6 (Br-Tap) : N87-2606-46

S M2.6 x 12 (Br-Tap) : N87-2612-46

T M3 x 8 (Br-Tap) : N87-3008-46

TK-790/(B)/H(B)

Parts with the exploded numbers larger than 700 are not supplied.

EXPLODED VIEW (KCH-10)

203

206

216

217

227

220

201

205

218x2

Vx4

702

X54 (B/3)

X54 (C/3)

703

Vx2

X54 (A/3)

207

U M2.6 x 5 (Br-Tap) : N87-2605-46

V M2.6 x 8 (Br-Tap) : N87-2608-46

W M3 x 6 (Br-Tap) : N87-3006-46

Wx2

TK-790/(B)/H(B)

Parts with the exploded numbers larger than 700 are not supplied.

EXPLODED VIEW (KCH-11)

313 312

317

303

301

315x2

X54 (B/2)

Yx3

Yx2

X54 (A/2)

Zx2

704

304

X M2.6 x 5 (Br-Tap) : N87-2605-46

Y M2.6 x 8 (Br-Tap) : N87-2608-46

Z M3 x 8 (Br-Tap) : N87-3008-46

TK-790/(B)/H(B)

Parts with the exploded numbers larger than 700 are not supplied.

PACKING (TK-790/(B))

35 Polystyrene foamed fixture

(H11-0896-04)

7 Warranty card

(B46-0470-00)

8 Instruction manual

(B62-0970-10)

37 Polystyrene

foamed board

(H11-0892-04)

: TK-790(B)

44 Protection bag

(H25-0194-04)

39 Carton board

(H13-1066-04)

36 Polystyrene foamed fixture

(H10-6621-02)

45 Item carton case

(H52-1227-02) : TK-790

(H52-1228-12) : TK-790(B)

UPC code label

38 Packing fixture

(H12-1403-04)

12 DC cord assy

(E30-3318-15) : TK-790

62 Microphone

(T91-0587-25) : TK-790

(1)

(2)

(3)

40 Protection bag

(H25-0029-04) : TK-790

21 Fuse (Blade)

(F05-1537-05) x 3

: TK-790

59 Screw set

(N99-0321-05) : TK-790

(N99-0365-05) : TK-790(B)

41 Protection bag

(H25-2063-04)

16 Short plug (SP)

(E37-0733-05)

22 Insulating cover

(F29-0472-04)

50 Band

(J61-0307-05) 46 Holder (MIC)

(J19-1584-05) : TK-790

42 Protection bag

(H25-0103-04)

(1) : TK-790

43 Protection bag

(H25-0117-04)

55 Knob

(K29-5276-03)

56 Knob

(K29-5277-03)

57 Knob

(K29-5305-03)

(2) : TK-790

48 Bracket

(J29-0422-13)

(3) : TK-790

40 Protection bag

(H25-0029-04)

53 Knob

(K29-4704-04) x 5

TK-790/(B)/H(B)

Parts with the exploded numbers larger than 700 are not supplied.

PACKING (TK-790H(B))

107 Warranty card

(B46-0470-00)

108 Instruction manual

(B62-0970-10)

135 Inner packing case

(H02-0604-03)

145 Protection bag

(H25-0724-04)

140 Packing fixture

(H12-1410-04)

139 Polystyrene

foamed board

(H11-0892-04)

142 Carton board

(H13-1066-04)

UPC code label

146 Item carton case

(H52-1229-12)

136 Polystyrene foamed fixture

(H10-6617-11)

141 Packing fixture

(H12-1422-04)

138 Polystyrene

foamed board

(H11-0853-04)

144 Protection bag

(H25-0103-04)

159 Screw set

(N99-0365-05)

143 Protection bag

(H25-2063-04)

116 Short plug (SP)

(E37-0733-05)

122 Insulating cover

(F29-0472-04)

150 Band

(J61-0307-05)

137 Polystyrene foamed board

(H11-0815-04)

TK-790/(B)/H(B)

Parts with the exploded numbers larger than 700 are not supplied.

PACKING (KCH-10)

210 Carton board

(H13-1059-04)

225 Screw set

(N99-0364-05)

213 Protection bag

(H25-0117-04)

221 Knob

(K29-5276-03)

222 Knob

(K29-5277-03)

223 Knob

(K29-5305-03)

211 Protection bag

(H25-0029-04)

219 Knob

(K29-4704-04) x 5

208 Polystyrene foamed fixture

(H10-6622-02)

209 Polystyrene foamed board

(H11-0894-04)

212 Protection bag

(H25-0103-04)

214 Item carton case

(H52-1271-02)

TK-790/(B)/H(B)

Parts with the exploded numbers larger than 700 are not supplied.

PACKING (KCH-11)

307 Carton board

(H13-1059-04)

322 Screw set

(N99-0364-05)

310 Protection bag

(H25-0117-04)

318 Knob

(K29-5276-03)

319 Knob

(K29-5277-03)

320 Knob

(K29-5305-03)

308 Protection bag

(H25-0029-04)

316 Knob

(K29-4704-04) x 5

305 Polystyrene foamed fixture

(H10-6622-02)

306 Polystyrene foamed board

(H11-0894-04)

309 Protection bag

(H25-0103-04)

311 Item carton case

(H52-1271-02)

TK-790/(B)/H(B)

ADJUSTMENT

Key Functions in Panel Test Mode and

Panel Tune Mode

Knob/Key Test mode Tune mode

GRP UP Test mode/Tune mode changeover

GRP DOWN Monitor ON/OFF

UP/DOWN Narrow/Wide changeover

PF1 Frequency CH down Tuning item down

PF2 Frequency CH up TUning item up

PF3 Signalling CH down Tuning value down

PF4 Signalling CH up Tuning value up

PF5 Not used Tuning value backup

GRP

VOL

POWER

BUSY

POWER

VOL UP/DOWN PF1 PF2 PF3 PF4 PF5

GRP DOWN

GRP UP

GRP

POWER

VOL

BUSY

SCAN OPT OSTA B CMON

CALL

MON

SCN

POWER

VOL UP/DOWN PF1 PF2 PF3 PF4 PF5

GRP UP

GRP DOWN

Panel Test Mode

The transceiver’s transmission output, receive sensitiv-

ity, and other items are measured and QT, DQT, 2tone and

DTMF signaling is decoded in this mode.

• To enter the panel test mode

Hold down [PF1] and turn the power switch on to enter

this mode. The test frequency channel and test signalling

channel will be displayed.

Basic function panel

Full function panel

Narrow Test frequency CH

Test signalling CH

Note : When a key other than GRP down is pressed, the

optional signalling is reset.

• Test frequency channel (MHz)

K : TK-790/(B), 790H(B) K2 : TK-790(B)

CH TX RX TX RX

1 161.000 161.100 146.000 146.100

2 148.000 148.100 136.000 136.100

3 174.000 173.900 156.000 155.900

4 161.000 161.000 146.000 146.000

5 161.200 161.200 146.200 146.200

6 161.400 161.400 146.400 146.400

7 – – 162.000 161.900

• Test signalling channel

CH No. Encode tone Decode tone

1 None None

2 100Hz square wave None

3 QT 67.0Hz QT 67.0Hz

4 QT 151.4Hz QT 151.4Hz

5 QT 250.3Hz QT 250.3Hz

6 DQT 023N DQT 023N

7 Single tone 1633Hz 2 tone 321.7/928.1Hz

8 DTMF [9] DTMF [159]

9 MSK None

Panel Tune Mode

The transceiver is adjusted in this mode.

• To enter the panel tune mode

Press the [GR ] key in the panel test mode.

In this mode, QT and DQT signalling is decoded, but

2tone and DTMF signalling is not decoded.

The adjustment items, the frequency and signalling,

other than the maximum deviation and sensitivity, return to

the values that were effective for the test frequency chan-

nel and test signalling channel before entering the panel

tune mode.

TK-790/(B)/H(B)

• Tuning item and display (XXX : 0~255)

Tuning item Basic display Full display Note

Frequency FREQ_XXX FREQUENCY_XXX_

RF power _POW_XXX POWER_ _ _ _ _XXX_

RF low power LPOW_XXX LOW_POWER_XXX_

Max. deviation MXDV_XXX MAX_DEV_ _ _XXX_ Wide/Narrow item

Max. deviation MXDV_XXX MAX_DEV_ _ _XXX_ Three digits on the upper left side: “_ _ L”

(Low) Transmission and reception at the low edge

Max. deviation MXDV_XXX MAX_DEV_ _ _XXX_ Three digits on the upper left side: “_ _ C”

(Center) Transmission and reception at the center

Max. deviation MXDV_XXX MAX_DEV_ _ _XXX_ Three digits on the upper left side: “_ _ H”

(High) Transmission and reception at the high edge

DQT balance BLNC_XXX DQT_BLNCE_XXX_ Wide/Narrow item

QT deviation QTDV_XXX QT_DEV_ _ _ _XXX_ Wide/Narrow item

DQT deviation DQDV_XXX DQT_DEV_ _ _XXX_ Wide/Narrow item

DTMF deviation DTDV_XXX DTMF_DEV_ _XXX_ Wide/Narrow item

MSK deviation MSDV_XXX MSK_DEV_ _ _XXX_ Wide/Narrow item

Sensitivity SENS_XXX RX_SENSE_ _XXX_ Wide/Narrow item

Sensitivity SENS_XXX RX_SENSE_ _XXX_ Three digits on the upper left side: “_ _ L”

(Low) Transmission and reception at the low edge

Sencitivity SENS_XXX RX_SENSE_ _XXX_ Three digits on the upper left side: “_ _ C”

(Center) Transmission and reception at the center

Sensitivity SENS_XXX RX_SENSE_ _XXX_ Three digits on the upper left side: “_ _ H”

(High) Transmission and reception at the high edge

Squelch tight point SQ_T_XXX SQL_TIGHT_XXX_ Wide/Narrow item

Squelch open point SQ_O_XXX SQL_OPEN_ _XXX_ Wide/Narrow item

: Use the [PF1] and [PF2] keys.

: Use the [PF5] key.

Use the [PF3] or [PF4] key to set an

adjustment value (0 to 255) for each

adjustment item.

Use the [PF5] key to move to the next

item.

SCAN OPT OSTA B CMON

CALL SP

Basic display

Full display

ADJUSTMENT

[PF1] + Power ON

Panel test mode [GRP ] Frequency

RF power

RF low power

Max. deviation Max. deviation (Low)

DQT balance

QT deviation

DQT deviation

DTMF deviation

MSK deviation

Sensitivity

Squelch tight

Squelch open

Max. deviation (Center)

Max. deviation (High)

Sensitivity (Low)

Sensitivity (Center)

Sensitivity (High)

TK-790/(B)/H(B)

Test Equipment Required for Alignment

No. Test Equipment Major Specifications

1 Standard Signal Generator Frequency Range 100 to 200MHz.

(SSG) Modulation Frequency modulation and external modulation.

Output 0.1µV to greater than 1mV.

2 Power Meter Input Impedance 50Ω.

Operation Frequency 100 to 200MHz or more.

Measurement Capability Vicinity of 200W.

3 Deviation Meter Frequency Range 148 to 174MHz.

4 Digital Volt Meter Measuring Range 1 to 20V DC.

(DVM) Accuracy High input impedance for minimum circuit loading.

5 Oscilloscope DC through 30MHz.

6 High sensitivity Frequency Range 10Hz to 200MHz.

Frequency Counter Frequency Stability 0.2ppm or less.

7 Ammeter 30A.

8 AF Volt Meter Frequency Range 50Hz to 10kHz.

(AF VTVM) Voltage Range 3mV to 3V.

9 Audio Generator (AG) Frequency Range 50Hz to 5kHz or more.

Output 0 to 1V.

10 Distortion Meter Capability 3% or less at 1kHz.

Input Level 50mV to 10Vrms.

11 Voltmeter Measuring Range 10 to 1.5V DC or less.

Input Impedance 50kΩ/V or greater.

12 4Ω Dummy Load Approx. 4Ω 30W.

13 Regulated Power Supply (Adjustable from 9 to 17V, 30A).

Useful if ammeter equipped.

Caution

Since the RX AF output is a BTL output, there is a DC

Component. Isolate this with a capacitor or transformer as

shown in the figure.

2 : HOOK (GRY)

4 : MIC (WHT)

3 : MICG (Shield) 10 : PTT (BLU)

5 : PTT (BLK)

To AG

AF VTVM

Cut PTT SW

E30-3313-08

MIC connector

(Front view)

1 : SB

2 : HOOK

3 : MICG

4 : MIC

5 : Earth

6 : TRD

7 : NC

8 : DM

9 : BLC

10 : PTT

11 : NC

12 : NC

Test cable for speaker outputTest cable for microphone input

ADJUSTMENT

11 12

TK-790/(B)/H(B)

ADJUSTMENT

Adjustment Points

• TK-790/(B) • TK-790H(B)

ANT

TH1

W4 CN1

CN2

VR1

Power module

CN104

L112 L111 L110

CN201

CN103

CN202

L117

L118

L119

L120 L123

L127

L122

CN203

CN101

CN102

FIANL UNIT

X45-356

TX-RX UNIT

X57-561 A/3

ANT

CN1

W2 CN3 VR1

CN4

Power module

FINAL UNIT

X57-561 C/3

CN104

L112 L111 L110

CN201

CN103

CN202

L117

L118

L119

L120 L123

L127

L122

CN203

CN101

CN102

TX-RX UNIT

X57-561 A/3

CN505

CN501

CN506

CN502

CN504 W501

VR501

MIC SENS

CN508 CN507

CONTROL UNIT

X57-561 B/3

CN505

CN501

CN506

CN502

CN504 W501

VR501

MIC SENS

CN508 CN507

CONTROL UNIT

X57-561 B/3

ADJUSTMENT

Measurement

Test-

equipment Unit Terminal

Adjustment

Unit Parts Method Specifications/RemarksConditionItem

TK-790/(B)/H(B)

Common Section

1. Frequency • Frequency range (MHz)

list K : 148~174 (TK-790/(B), 790H(B))

K2 : 136~156 (TK-790(B))

• Adjustment frequency (MHz) • Signalling

2. Setting • Receiver section • Transmitter section

The indicated SSG output level are for maximum output.

Whenever there is no modulation desingnation,

standard modulation (MOD : 1kHz, DEV : 3kHz (Wide),

DEV : 1.5kHz (Narrow)) is indicated.

Connect the front panel (KCH-10) to the transceiver’s body.

3. PLL lock 1) CH-SIG : 3-1 KDC VM TX-RX CV TX-RX

A (TC301)

1.5V ±0.1V

voltage CH-SIG : 7-1 K2

Power meter

(A/3) (A/3)

2) CH-SIG : 3-1 K

C (TC302)

CH-SIG : 7-1 K2

PTT : ON

3) CH-SIG : 2-1 Check 8.0V or less

4) CH-SIG : 2-1

PTT : ON

4. Transmit 1) CH-SIG : 1-1

Power meter

Rear ANT Panel

PF3 key

CH-1 frequency ±70Hz

frequency Select FREQ_XXX f. counter

PF4 key

in tune mode

PTT : ON

4Ω dummy load

AF VTVM

Oscilloscope

Distortion meter

SSG

ACC

(SP)

ANT

AG AF VTVM

MIC

PTT

Power meter

Coupler

Deviation

meter

Frequency

counter

ANT

–+

–

AmmeterPower

supply

DC IN

KK2

CH TX RX TX RX

1 161.000 161.100 146.000 146.100

2 148.000 148.100 136.000 136.100

3 174.000 173.900 156.000 155.900

4 161.000 161.000 146.000 146.000

5 161.200 161.200 146.200 146.200

6 161.400 161.400 146.400 146.400

7 – – 162.000 161.900

CH No.

Encode tone Decode tone

1 None None

2 100Hz square wave None

3 QT 67.0Hz QT 67.0Hz

4 QT 151.4Hz QT 151.4Hz

5 QT 250.3Hz QT 250.3Hz

6 DQT 023N DQT 023N

7 Single tone 1633Hz 2 tone 321.7/928.1Hz

8 DTMF [9] DTMF [159]

9 MSK None

ADJUSTMENT

Measurement

Test-

equipment Unit Terminal

Adjustment

Unit Parts Method Specifications/RemarksConditionItem

TK-790/(B)/H(B)

5. BPF 1) CH-SIG : 2-1 Spectrum TX-RX CN101 TX-RX L112 Adjust the coils in

Spectrum analyzer analyzer (A/3) (A/3) L111 the following order

Span : 50MHz L110 : L112, L111, L110

Scale : 5dB div Tracking Rear ANT

Tracking generator generator

Output : –20dBm

6. MCF 1) CH-SIG : 1-1 Spectrum TX-RX CN103 TX-RX L118 Adjust it to make gain maximum, and make the

• Wide Spectrum analyzer analyzer (A/3) (A/3) L119 band flat as shown in the below.

Span : 25kHz L122

Scale : 2dB div Tracking CN102

Center frequency : 44.850MHz

generator

Tracking generator

Output : –20dBm

• Narrow 1)

Up/down knob : Set the narrow

L117

“n_ _” appear on the LCD L120

L123

7. Distortion 1) CH-SIG : 1-1 (Wide) SSG Rear ANT Check 3% or less

SSG output : –53dBm/501µV Distortion EXT.SP If the distortion value

AF output : 2V/4Ωmeter exceeds 3%, you must

AF VTVM adjust L127 to obtain a

Oscilloscope

minimum distortion value.

4Ω dummy

load

8. RF power 1) CH-SIG : 1-1

Power meter

Rear ANT Final VR1 Maximum clockwise 115W or more

• High power Select _POW_XXX Ammeter

model in tune mode 110W adj. 110W±5W, 25A or less

(High power) PTT : ON

Panel

PF3 key

Check 110W ±5W

PF4 key

(Low power) 1) CH-SIG : 1-1 45W adj. 45W±1W

Select LPOW_XXX

in tune mode

PTT : ON

REF 4.0dBm

5dB/

MARKER

22.00MHz

–18.70dB

RBW

300kHz

VBW

100kHz

–1.05dBm

SWP

50ms

SPAN 50.0MHz CENTER 148.0MHz (K)

136.0MHz (K2)

ATT 10dB

10dB

or more

–22MHz +22MHz

–5

MHz +5

MHz

10dB

or more

5dB

REF –20.0dBm

2dB/

MARKER

4.50kHz

–0.28dB

RBW

300Hz

VBW

300Hz

–22.02dBm

SWP

1.3s

SPAN 25.0kHz CENTER 44.8500MHz

ATT 10dB

3dB or more

(±10kHz)

–4.5kHz +4.5kHz

–10kHz +10kHz

1.5dB max.

REF –20.0dBm

2dB/

MARKER

3.00kHz

–0.42dB

RBW

300Hz

VBW

300Hz

–22.02dBm

SWP

1.0s

SPAN 20.0kHz CENTER 44.8500MHz

ATT 10dB

3dB or more

(±7kHz)

–7kHz

–3kHz

+7kHz

+3kHz

1.5dB max.

ADJUSTMENT

Measurement

Test-

equipment Unit Terminal

Adjustment

Unit Parts Method Specifications/RemarksConditionItem

TK-790/(B)/H(B)

• Med power 1) CH-SIG : 1-1

Power meter

Rear ANT TX-RX VR1 Maximum clockwise 47W or less

model Select _POW_XXX Ammeter (C/3)

(High power) in tune mode 45W adj. 45W±1W, 12A or less

PTT : ON

Panel

PF3 key

Check 45W±1W

PF4 key

(Low power) 1) CH-SIG : 1-1 5W adj. 5W±1W

Select LPOW_XXX

in tune mode

PTT : ON

9. Maximum 1) Select _ _L

Power meter

Rear ANT Panel

PF3 key

Wide ±4.1kHz ±0.1kHz

deviation MXDV_XXX Deviation

PF4 key

• Wide in tune mode meter

PTT : ON AF VTVM Panel MIC

Deviation meter filter AG

HPF : OFF

Oscilloscope

LPF : 15kHz

De-emphasis : OFF

AG : 1kHz/50mV

2) Select _ _C

MXDV_XXX

in tune mode

PTT : ON

3) Select _ _H

MXDV_XXX

in tune mode

PTT : ON

• Narrow 1)

Up/down knob : Set the narrow

Narrow ±2.05kHz ±0.05kHz

n_L

MXDV_XXX in tune mode

PTT : ON

2) Select n_C

MXDV_XXX

in tune mode

PTT : ON

3) Select n_H

MXDV_XXX

in tune mode

PTT : ON

10. MIC 1) CH-SIG : 1-1 TX-RX VR501 Check 2.75~3.25kHz

sensitivity PTT : ON (B/3)

Wide only Deviation meter filter

HPF : OFF

LPF : 15kHz

De-emphasis : OFF

AG : 1kHz/5mV

ADJUSTMENT

Measurement

Test-

equipment Unit Terminal

Adjustment

Unit Parts Method Specifications/RemarksConditionItem

TK-790/(B)/H(B)

11. DQT 1) CH-SIG : 1-2

Power meter

Rear ANT Panel

PF3 key

Wide/Narrow Flat the a parts.

balance Select BLNC_XXX Deviation

PF4 key

Make the

in tune mode meter demodulation wave-

PTT : ON AF VTVM Panel MIC form neat.

Deviation meter filter AG

HPF : OFF

Oscilloscope

LPF : 3kHz

De-emphasis : OFF

Up/down knob : Set the narrow

n_ _

BLNC_XXX in tune mode

PTT : ON

12. QT 1) CH-SIG : 1-4 Wide ±0.75kHz ±0.05kHz

deviation Select QTDV_XXX

in tune mode

PTT : ON

Deviation meter filter

HPF : OFF

LPF : 3kHz

De-emphasis : OFF

Up/down knob : Set the narrow

Narrow ±0.35kHz ±0.025kHz

n_ _

QTDV_XXX in tune mode

PTT : ON

13. DQT 1) CH-SIG : 1-6 Wide ±0.75kHz ±0.05kHz

deviation Select DQDV_XXX

in tune mode

PTT : ON

Deviation meter filter

HPF : OFF

LPF : 3kHz

De-emphasis : OFF

Up/down knob : Set the narrow

Narrow ±0.35kHz ±0.025kHz

n_ _

DQDV_XXX in tune mode

PTT : ON

14. DTMF 1) CH-SIG : 1-8 Wide ±3.0kHz ±0.1kHz

deviation Select DTDV_XXX

in tune mode

PTT : ON

Deviation meter filter

HPF : OFF

LPF : 15kHz

De-emphasis : OFF

Up/down knob : Set the narrow

Narrow ±1.5kHz ±0.05kHz

n_ _

DTDV_XXX in tune mode

PTT : ON

ADJUSTMENT

Measurement

Test-

equipment Unit Terminal

Adjustment

Unit Parts Method Specifications/RemarksConditionItem

TK-790/(B)/H(B)

15. MSK 1) CH-SIG : 1-9

Power meter

Rear ANT Panel

PF3 key

Wide ±3.0kHz ±0.1kHz

deviation Select MSDV_XXX Deviation

PF4 key

in tune mode meter

PTT : ON AF VTVM Panel MIC

Deviation meter filter AG

HPF : OFF

Oscilloscope

LPF : 15kHz

De-emphasis : OFF

Up/down knob : Set the narrow

Narrow ±1.5kHz ±0.05kHz

n_ _

MSDV_XXX in tune mode

PTT : ON

16. Sensitivity 1) CH-SIG : 2-1 SSG Rear ANT Wide low check SINAD 12dB or more

Select _ _L

SENS_XXX AF VTVM EXT.SP

in tune mode Distortion

SSG output : –116dBm/0.35µV

meter

AF output : 2V/4Ω

Oscilloscope

4Ω dummy

2) CH-SIG : 1-1 load Wide center check

Select _ _C

SENS_XXX

in tune mode

3) CH-SIG : 3-1 Wide high check

Select _ _H

SENS_XXX

in tune mode

CH-SIG : 1-1

Narrow center check

Up/down knob : Set the narrow

n_C

SENS_XXX in tune mode

17. Squelch 1) CH-SIG : 1-1 Adjust to point of Set the value to 255.

tight point Select SQ_T_XXX opening squelch Adjust the SSG output to

in tune mode “Condition”.

SSG output : Value when 6dB

Then, decrease the value to

is added from the sensitivity

the point of opening the

value of 12dB SINAD. squelch.

Up/down knob : Set the narrow

n_ _

SQ_T_XXX in tune mode

18. Squelch 1) CH-SIG : 1-1

open point Select SQ_O_XXX

in tune mode

SSG output : Value when 3dB

is subtracted from the

sensitivity value of 12dB

SINAD.

Up/down knob : Set the narrow

n_ _

SQ_O_XXX in tune mode

3) SSG output : OFF Wide/Narrow check Squelch must be closed.

TK-790/(B)/H(B)

Connector Terminal

Terminal

I/O Terminal Function

No. No. Name

CN1 1 DO I Transmission drive input.

To Coaxial connector.

TX-RX

unit

CN2 1 RA O Receiver signal output.

To Coaxial connector.

TX-RX

unit

CN3 1 +B I Power supply input (13.4V±15%).

CN4 1 E – Earth.

W4 1 E – Earth.

To 2 +B O

Power supply output (13.4V±15%).

Control 3 +B O

Power supply output (13.4V±15%).

unit

W5 1 DB O Transmission drive control

To voltage output (APC).

TX-RX 2 E – Earth.

unit 3 8R I 8V input during reception.

4 8T I 8V input during transmission.

5 PC I TX power control signal input.

CN104 1 RA I Receiver signal input.

To Coaxial connector.

Final

unit

CN201 1 PC O TX power control signal output.

To 2 8T O 8V output during transmissioin.

Final 3 8R O 8V output during reception.

unit 4 E – Earth.

5 DB I Tranmission drive control voltage

input (APC).

CN202 1 NC – Not used.

To 2 UL O Lock detect output for PLL.

Control “H” : Lock, “L” : Unlock

unit 3 EP I ENABLE input for PLL.

4 CP I CLOCK input for PLL.

5 MO I Modulation signal input for VCO.

6 MB I Modulation and frequency control

signal input for VCXO.

7 SB I Power output after power switch

(13.6V or 13.4V±15%).

8 DT I DATA input.

9 ES I ENABLE input for shift register.

10 CK I CLOCK input for shift register.

11 KEY I KEY signal input. “H” : TX

12 8C I Common 8V (8V±5%).

13 E – Earth.

14 DET O Detection signal output.

15 SQL O Squelch signal output.

16 RSI O RSSI signal output.

17 TV I

Tuning voltage signal input for RX BPF.

18 PC I TX power control signal input.

CN203 1 DO O Transmission drive output.

To Coaxial connector.

Final

unit

FINAL UNIT (X45-3560-10) : TK-790H(B)

TX-RX UNIT (X57-5610-XX) (A/3)

Connector Terminal

Terminal

I/O Terminal Function

No. No. Name

W501 1 RS2 O Output for remote speaker.

To 2 RS1 O Output for remote speaker.

Display 3 SB O Power output after power switch

unit (13.6V or 13.4V±15%).

4 IGN I Ignition input.

5 PS I Power swith control signal input.

6 TRD I/O TX data output/RX data input.

7 1/2 O Remote head 1 signal output.

8 RST O RESET signal output.

9 E – Earth.

10 MIC I MIC signal input.

11 ME – MIC earth.

CN501 1 +B I

Power supply input (13.6V or 13.4V±15%).

To 2 +B I

Power supply input (13.6V or 13.4V±15%).

Final 3 E – Earth.

unit

CN502 1 PC O TX power control signal output.

To 2 TV O

Tuning voltage signal output for RX BPF.

TX-RX 3 RSI I RSSI signal input.

unit 4 SQL I Squelch signal input.

5 DET I Detection signal input.

6 E – Earth

7 8C O Common 8V (8V±5%).

8 KEY O KEY signal output. “H” : TX

9 CK O CLOCK output for shift register.

10 ES O ENABLE output for shift register.

11 DT O DATA output.

12 SB O Power output after power switch

(13.6V or 13.4V±15%).

13 MB O Modulation and frequency control

signal output for VCXO.

14 MO O Modulation signal output for VCO.

15 CP O CLOCK output for PLL.

16 EP O ENABLE output for PLL.

17 UL I Lock detect input for PLL.

“H” : Lock, “L” : Unlock.

18 NC – Not used.

CN504 1 AFO O RX audio signal output for head 2.

To 2 DE3 I/O

Detection signal input from Radio 2.

Control 3 E – Earth

cable 4 EI O ENABLE output for shift register.

(Remote

5 CK O CLOCK output for shift register.

kit) 6 DT O DATA output for shift register.

7 RST I/O RESET signal output for Radio 2.

8 5C O Common 5V (5V±5%).

9 PSC I/O Power switch control signal

input/output.

10 CS O

Chip select output for D/A converter.

CN505 1 RSI O RSSI signal output.

To Acc 2 NC (SB) O Non connection.

25 pin 3 AI1 I Auxiliary input 1 (FPU selectable).

D-sub 4 RSV1 O Reserved

connector

5 AI2 I Auxiliary input 2 (FPU selectable).

6 RSV2 I Reserved.

7 AI3 I Auxiliary input 3 (FPU selectable).

8 AFO O RX audio signal output.

9 AI4 I Auxiliary input 4 (FPU selectable).

10 E – Earth.

11 AI5 I Auxiliary input 5 (FPU selectable).

12 DEO O Detector signal output.

13 E – Earth.

CONTROL UNIT (X57-5610-XX) (B/3)

TERMINAL FUNCTION

TK-790/(B)/H(B)

Connector Terminal

Terminal

I/O Terminal Function

No. No. Name

14 AO1 O Auxiliary output 1 (FPU selectale).

15 AO2 O Auxiliary output 2 (FPU selectale).

16 AO3 O Auxiliary output 3 (FPU selectale).

17 TXD2 O Serial data output.

18 AO4 O Auxiliary output 4 (FPU selectale).

19 RXD2 I Serial data input.

20 SQ O Squelch signal output.

“H” : Busy, “L” : Not busy

21 TXS O TX sense signal output.

“H” : TX, “L” : Another

22 SPM I Speaker mute signal input.

“H” : Mute on

23 MCM I

MIC mute signal input. “H” : Mute on

24 ME – MIC earth.

25 MI/DI I

Mic/Data signal input 1. (Default : DI)

26~30 – – Non connection.

CN506 1 IGN I Ignition sense input.

To Acc 2 E – Earth.

9 pin 3 HR1 O Horn alert signal output 1.

connector

4 HR2 O Horn alert signal output 2.

5 OS1 O

BTL output for external speaker B (PA).

6 OS2 O

BTL output for external speaker B (PA).

7 ES2 O BTL output for external speaker A.

8 ES1 O BTL output for external speaker A.

9 RS1 I Remote speaker switch.

CN507 1 SQ O Squelch signal output.

To “H” : Busy, “L” : No signal

ANI 2 EMG O Emergency signal output.

board 3 EPT I External PTT signal input.

4 IO I/O Auxiliary input/output.

5 SEL – Non connection.

6 AS2 I Audio mute input.

“HiZ” : No change, “L” : Mute

7 MCM I MIC mute input.

“HiZ” : No change, “L” : Mute

8 TON I Sidetone input.

9 TCN I Speaker mute input.

“HiZ” : No change, “L” : Unmute

10 DTI I Data input.

CN508 1 MCI I MIC signal input.

To 2 MCO O MIC signal output.

voice 3 DEI I Detection signal input.

scrambler

4 AC O Audio control signal output.

“H” : OPT SW off, “L” : On

5 BC1 O Scramble code output.

6 BC2 O Scramble code output.

7 BC3 O Scramble code output.

8 BC4 O Scramble code output.

9 TXD2 O TX data output 2.

10 RXD2 I RX data input 2.

11 DEO O Detection signal output.

12 PTO O PTT signal output.

13 8C O Common 8V output.

14 E – Earth.

CN1 1 DO I Transmission drive input.

To Coaxial connector.

TX-RX

unit

CN2 1 +B I Power supply input (13.6V±15%).

FINAL UNIT (X57-5610-XX) (C/3) : TK-790/(B)

Connector Terminal

Terminal

I/O Terminal Function

No. No. Name

CN3 1 RA O Receiver signal output.

To Coaxial connector.

TX-RX

unit

W1 1 E – Earth.

To 2 +B O

Power supply output (13.6V±15%).

Control 3 +B O

Power supply output (13.6V±15%).

unit

W2 1 DB O Transmission drive control

To voltage output (APC).

TX-RX 2 E – Earth

unit 3 8T I 8V input during transmission.

4 PC I TX power control signal input.

CN1 1 ME – MIC earth.

To 2 MIC O MIC signal output.

Control 3 E – Earth.

unit 4 RST I RESET signal input.

5 1/2 I Remote head 1/2 signal input.

“L” : Head 1, “H” : Head 2

6 TRD I/O TX data output/RX data input.

7PSO

Power switch control signal output.

8 IGN O Ignition sense output.

9 SB I Power input after power switch

(13.6V or 13.4V±15%).

10 RS1 I Remote speaker input.

11 RS2 I Remote speaker input.

CN2 1 RS1 O Remote speaker output.

To 2 RS2 O Remote speaker output.

Remote

speaker

CN3 1 IGN I Ignition sense input.

To Acc 2 SB O Power output after power switch

12 pin (13.6V or 13.4V±15%).

connector

3 E – Earth.

4 MIC I MIC signal input.

5 ME – MIC earth.

6 AI1 I Auxiliary input 1 (FPU selectable).

7 AI2 I Auxiliary input 2 (FPU selectable).

8 AO1 O

Auxiliary output 1 (FPU selectable).

9 AO2 O

Auxiliary output 2 (FPU selectable).

J1 1 SB O Power output after power switch

(MIC (13.6V or 13.4V±15%)

jack) 2 HK I Hook signal input.

“L” : On hook, “H” : Off hook

3 ME – MIC eearth.

4 MIC I MIC signal input.

5 E – Earth.

6 TRD I/O TX data output/RX data input.

7 NC – Not used.

8 DM I/O

Serial data input/output for keypad MIC.

9 BLC O

MIC backlight control signal output.

“H” : On, “L” : Off

10 PTT I PTT signal input.

“L” : TX, “OPEN” : RX

11 NC – Not used.

12 NC – Not used.

DISPLAY UNIT (X54-3190-20) : KCH-10

(X54-3200-20) : KCH-11

TERMINAL FUNCTION

TK-790/(B)/H(B)

TERMINAL FUNCTION

Connector Terminal

Terminal

I/O Terminal Function

No. No. Name

1 RSI O RSSI signal output.

2 AI1 I Auxiliary input 1 (FPU selectable).

3 AI2 I Auxiliary input 2 (FPU selectable).

4 AI3 I Auxiliary input 3 (FPU selectable).

5 AI4 I Auxiliary input 4 (FPU selectable).

6 AI5 I Auxiliary input 5 (FPU selectable).

7 E – Earth

8 AO2 O

Auxiliary output 1 (FPU selectable).

9 TXD2 O Serial data output.

10 RXD2 I Serial data input.

11 TXS O TX sense signal output.

“H” : TX, “L” : Another

12 MCM I MIC mute signal imput.

“L” : Mute on, “H” : No change

13 MI/DI I

MIC/Data signal input 1. (Default : DI)

Input impedance

DI : 10kΩ or more

MI : 600Ω

Coupling

DI : DC coupling

MI : DC coupling

Frequency response

DI : ~9.6kHz +1/–3dB (1kHz=0dB)

MI : Compliance with TIA/EIA-603

Deviation

DI : 60% deviation or more.

(1kHz 2.5Vp-p input)

MI : 60% deviation

(1kHz 5mV±1.5mV input)

14 NC (SB) O Non connection.

(SB : 13.6V or 13.4V 0.5A max.

Refer to page 20)

15 RSV1 – Reserved.

16 RSV2 – Reserved.

17 AFO O RX audio signal output (Same as

CN504 pin No.1)

RX condition : RX audio output.

Output level 125mVrms.

(Standard modulation)

PA copndion : MIC output.

Output level 300mVrms.

(1kHz 5mV input)

18 E – Earth

19 DEO O Detector signal output.

Output impedance

1kΩ or less

Coupling

DC coupling

Output level : 100mVrms

(Standard modulation)

Acc 25 pin D-sub connector

Connector Terminal

Terminal

I/O Terminal Function

No. No. Name

Output frequency response :

Wide : 300~4.8kHz +1/–2dB

4.8~9.6kHz +1/–24dB

Narrow : 300~4.8kHz +1/–10dB

(1kHz=0dB)

20 AO1 O

Auxiliary output 1 (FPU selectable).

21 AO3 O

Auxiliary output 3 (FPU selectable).

22 AO4 O

Auxiliary output 4 (FPU selectable).

23 SQ O Squelch signal output.

“L” : Busy, “H” : Not busy

24 SPM I Speaker mute signal input.

“L” : Mute on

25 ME – MIC earth.

Acc 9 pin connector

1 IGN I Ignition sense input.

2 SB O Power output after power switch

(13.6V or 13.4V±15%).

3 E – Earth.

4 MIC I MIC signal input.

5 ME – MIC earth.

6 AI1 I Auxiliary input 1 (FPU selectable).

7 AI2 I Auxiliary input 2 (FPU selectable).

8 AO1 O

Auxiliary output 1 (FPU selectable).

9 AO2 O

Auxiliary output 2 (FPU selectable).

10 RS1 O Remote speaker output.

11 RS2 O Remote speaker output.

12 – – Non connection.

Acc 12 pin connector (Remote kit)

1 IGN I Ignition sense input.

2 ES2 O

BTL output for external speaker A.

3 RS1 I Remote speaker switch

4 HR1 O Horn alert signal output 1.

5 HR2 O Horn alert signal output 2.

6 ES1 O

BTL output for external speaker A.

7 OS1 O

BTL output for external speaker B (PA).

8 OS2 O

BTL output for external speaker B (PA).

9 E – Earth.

–130 –120 –110 –100 –90

ANT input level [dBm]

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

RSSI [V]

Wide

Narrow

RSSI vs ANT input (Typical value)

TK-790/(B)/H(B)

WIRING

C11

C20

C23

C24

C36

C48

D10 D11

R13

R14

R17

R38

R41 R42 R43

R49

R50

POW

DOWN

VR1

IC4

CN5

C22

C25

IC1

R10

R51

R52

C43

C44

C45 C46 C47

C49

C50

PF1 S6

PF2 S7

PF3 S8

PF4 S9

PF5

Q11

R45

R47

D12

D13

R15

J72-0561-22 (A/3)

J72-0561-22 (C/3)

(B/3)

SB NC NC

PTT

BLC

TRD

MIC

ME HK

MIC

100

75 51

ED1

C11

C20

C23

C24

C36

C48

D10

D11

D7 D8

R13

R14

R17

R38

R41 R42 R43

R49

R50

POW

DOWN

VR1

IC4

CN5

C22

C25

IC1

R10

R51

R52

C43

C44

C45 C46 C47

C49

C50

PF1 S6

PF2 S7

PF3 S8

PF4 S9

PF5

Q11

R45

R47

D12

D13

R15

J72-0561-22 (A/3)

J72-0561-22 (C/3)

(B/3)

SB NC NC

PTT

BLC

TRD

MIC

ME HK

MIC

100

75 51

ED1

C17

C27

C30

C32

C35

CN4

IC2

IC3

4 5

R16

R18

R21

R23

R24

R26

R29

R30

R31

R32

R33

R34

R35

R36 R39

R40

R48

C37

CN2

C28

C29

Q12

Q13

R54

CN6 81

D16

D17

D19

D20

D21

D24

CN3

CN1

R55

Q14

Q15

R12

R11

R7 D25

R67

IGN

MIC

AI1

AI2

AO1

AO2

RS2

RS1

IGN

TRD

1/2

RST

MIC

RS11

2 RS2

C17

C27

C30

C32

C35

CN4

IC2

IC3

R16

R18

R21

R23

R24

R26

R29

R30

R31

R32

R33

R34

R35

R36 R39

R40

R48

C37

CN2

C28

C29

Q12

Q13

R54

CN6 81

D16

D17

D19

D20

D21

D24

CN3

CN1

R55

Q14

Q15

R12

R11

R7 D25

R67

IGN

MIC

AI1

AI2

AO1

AO2

11 RS2

RS1

IGN

TRD

1/2

RST

MIC

RS11

2 RS2

PC BOARD VIEWS

DISPLAY UNIT (X54-3190-20) Component side view : KCH-10

DISPLAY UNIT (X54-3190-20) Foil side view : KCH-10

TK-790/(B)/H(B)

Component side

Foil side

A C E G I

B D F H J

J72-0562-12 A/2

B/2

POW

C61

C24

DOWN

C23

C20

C65

C64

C63

C62

C58

C50 C51 C52

C57

C56

C60

C59

C53 C54 C55

C22

IC1

C25

VR1

R30 R32 R35

R12

R38 R37

R5 W1

R57 R58 R59

R60 R61 R62

S10

MON S11

PF6 S12

PF7

S13

SCN S14

PF8 S15

PF9

PF1 S6

PF2 S7

PF3 S8

PF4 S9

PF5

R41

R43

R44

R40

R10

MIC

NC NC

PTT

BLC

TRD

MIC

ME HK

ED1

J72-0562-12 A/2

B/2

POW

C61

C24

DOWN

C23

C20

C65

C64

C63

C62

C58

C50 C51 C52

C57

C56

C60

C59

C53 C54 C55

C22

IC1

C25

VR1

R30 R32 R35

R12

R38 R37

R5 W1

R57 R58 R59

R60 R61 R62

S10

MON

S11

PF6 S12

PF7

S13

SCN S14

PF8 S15

PF9

PF1 S6

PF2 S7

PF3 S8

PF4 S9

PF5

R41

R43

R44

R40

R10

MIC

NC NC

PTT

BLC

TRD

MIC

ME HK

ED1

R55

R53

R51

R49

R47

R45

R46

R48

R50

R52

R54

R56

IC4

IC3

C67

C66

R26

C35

C27

IC2

C36

C32

C40

CN4

R42

R20

R19

R14

R16

R34

R33

R31

R21

R22

R11

R2 R1

R24 R28

R29

R39

CN2

C30

C14

C28 C29

R63

R13

Q10

R65

D11

D12

D14

D15

D16

D18

CN1

CN3

CN5

R66

Q14

Q15

D19

R67

IGN

MIC

AI1

AI2

AO1

AO2

RS2

RS1

OGN

TRD

1/2

RST

MIC

RS1

RS2

VCC

LEDA

LEDK

4 5

100 125

R55

R53

R51

R49

R47

R45 R46

R48

R50

R52

R54

R56

IC4

IC3

C67 C66

R26

C35

C27

IC2

C36

C32

C40

CN4

R42

R20

R19

R14

R16

R34

R33

R31

R21

R22

R11

R2 R1

R24

R28

R29

R39

CN2

C30

C14

C28

C29

R63

R13

Q10

R65

D11

D12

D14

D15

D16

D18

CN1

CN3

CN5

R66

Q14

Q15

D19

R67

IGN

MIC

AI1

AI2

AO1

AO2

RS2

RS1

OGN

TRD

1/2

RST

MIC

RS1

RS2

VCC

LEDA

LEDK

4 5

100 125

PC BOARD VIEWS

DISPLAY UNIT (X54-3200-20) Component side view : KCH-11

DISPLAY UNIT (X54-3200-20) Foil side view : KCH-11

TK-790/(B)/H(B)Component side

Foil side

TRPNLJHFDB SQ

OMKIGECA

CIRCUIT DIAGRAM TK-790/(B)/H(B)

Note : Components marked with a dot (·) are parts of pattern 1.

ACEGI K MOQS

BDF H J L N P R T

TK-790/(B)/H(B) CIRCUIT DIAGRAM

Note : Components marked with a dot (·) are parts of pattern 1.

RQP

NMLK

IHGF

C525

C526

C528

C530

C531

C532

C533

C535

C536

C539

C541

C544

C546

C550

C551

C553

C558

C559

C562

C570

C572C573

C578

C584

C586

C588

C591

C594

C595

C599

C600

C601

C602

C603

C604 C605

C606

C608

C609

C611

C612

C613

C615

C616

C617

C618

C620

C621

C623

C624

C625

C626

C628

C629

C630

C631

C637 C666

C667 C668

C669 C670

C671

C672

C673 C674

C675 C676

C677 C678

C679

C680

C681

C682

C683

C684

C685

C687

C688

C689

C690

C691

C693

CN508

F501

F502

IC503

G IO

IC511

5 1

IC516

IC520

3 4

R504

R507

R508

R512R514

R515

R516

R517

R518

R519

R520

R522

R524

R529 R530

R531

R542

R543

R546

R552

R565

R566

R574

R583

R587

R594

R595

R604

R605 R606

R608

R609

R611

R612

R613

R615 R616

R621

R624

R625

R626

R628

R719

R631

R632

R633

R634

R635

R636

R638

R639

R641

R657

R661

R662

R663

R667

VR501

MIC SENS

X501

R695

R697

IC504

W501

CN506

CN505 R668

R674

R602

CN501

CN502

Q519

IC525

7 8

IC514

R536

R617

R618

R620

R619

R623

R629

R630R627

L501

R607

R659

C640 R658

R691

R537

R509

C527

IC522

R700

C700

C524

Q503

Q514

Q520

Q516

Q517

Q522

CN504

C619

CN507

R717

C598

R713

R714

R716

R676

R718

C703

R690

R720

C704

C705

C706

C707

R721

R722

C708

R723

Q526

Q527

Q530

IC526

R724

R725

C709

R726C710

C711

R727

Q531

Q532

R728

IC518

IC521

IC524 IC502

4 5

Q541

R742

X502

R746

R748

R747

RSI

SQL

DET

KEY

DE3

1 11

2333

AFO

DE3

RST

PSC

SID

SIH

SIA

SIE

DEO

AO1

AO3

AO4

SPM

RSSI

AI1

AI2

AI3

AI4

AI5

AO2

TXD2

RXD2

TXS

MCM

MI/DI

30 29

IN2

IN1

MCI

MCO

DEI

BC1

BC2

BC3

BC4

TXD2

RXD2

DEO

PTO

RS2

RS1

IGN

TRD

1/2

RST

MIC

4 5

26 50

100

DTI

TCN

TON

MCM

AS2

EPT

EMG

SQ 1

IGN

HR1

HR2

OS2

OS1

ES2

ES1

RS1

5C RST

17 16

J72-0567-42 B/3

PC BOARD VIEW TK-790/(B)/H(B)

91 92

CONTROL UNIT (X57-5610-XX) (B/3) -10 : TK-790/(B) K -11 : TK-790(B) K2 -12 : TK-790H(B) K Component side view

Component side

Foil side

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Ref No. Address

 IC502 3B

 IC503 5R

 IC504 7F

 IC511 7H

 IC514 2L

 IC516 4M

Ref No. Address

 IC518 5B

 IC520 3N

 IC521 5C

 IC522 8R

 IC524 7B

 IC525 5H

Ref No. Address

 IC526 8G

 Q503 4Q

 Q514 10R

 Q516 7B

 Q517 7C

 Q519 4R

Ref No. Address

 Q520 10O

 Q522 3K

 Q526 9G

 Q527 9G

 Q530 9H

 Q531 8H

Ref No. Address

 Q532 9H

 Q541 3R

ABCD E F G H I J K L M N O P Q R S

C501

C529

C534

C537

C538

C540

C542

C543

C545

C547

C548

C549

C552

C554

C555

C557

C563

C565

C566

C567

C568

C571

C575

C576

C579

C580

C581

C582

C583

C585

C587

C589

C590

C592

C596

C597

C607

C610

C614

C622

C627

C632

C633

C634

C635

C636

C638

C639

C686

C692

D502

D505 D508

D512

IC512

1213

IC515

IC519

R501

R502

R505

R513

R521

R523

R525

R526

R527

R528

R532

R535

R539

R541 R545

R549

R550

R553

R557

R558

R559

R561

R562

R563

R564

R567

R568

R570

R572

R573

R575 R576

R577 R578

R579

R580 R581

R582

R584

R701

R586

R588 R589

R591

R592

R596

R597

R598

R599 R600

R601

R603

R622

R642

R643

R644

R645

R647

R646

R648

R652

R654

R656

R664

R665

R666

R670

TH501

C695

C696

R671

R547

R672

D528

R675

IC506

D529

R677

IC501

IC509

Q504

D506

D511

R533

R534

C574

C593

C694

L502

R680

R679 R678

C642 C641

D503

C697

R693

R510

R511

D513D517D519D516

D521D523

D515

D524

D514

D527

D526

Q501

Q502

Q518

Q506 Q507

Q505

Q509

Q510

Q511

Q512

Q513

Q524

Q523

D504

D507

D501

R698

C698

R699

C699

R706

R702

C701

R703

Q525

R707

R708

R709

R710

R711

R712

IC523

IC517

R715

Q528

Q529

C712

R655

Q538

Q540

Q537

Q539

Q534

Q536Q533

Q535

R734

R730

R736

R732

R733

R729

R731

R735

IC513

IC505

IC508

4 5

IC510

R741

R744

Q542

Q544

Q543

R740 J72-0567-42 B/3

16 17

93 94

CONTROL UNIT (X57-5610-XX) (B/3) -10 : TK-790/(B) K -11 : TK-790(B) K2 -12 : TK-790H(B) K Foil side view

Component side

Foil side

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Ref No. Address

 IC501 3B

 IC505 8L

 IC506 5D

 IC508 9Q

 IC509 8R

 IC510 8M

TK-790/(B)/H(B) PC BOARD VIEW

Ref No. Address

 IC512 7Q

 IC513 8O

 IC515 5P

 IC517 6N

 IC519 4G

 IC523 7H

Ref No. Address

 Q501 4D

 Q502 4D

 Q504 9L

 Q505 7J

 Q506 3A

 Q507 3A

Ref No. Address

 Q509 5O

 Q510 6O

 Q511 5O

 Q512 6O

 Q513 5N

 Q518 3C

Ref No. Address

 Q523 5F

 Q524 5F

 Q525 7H

 Q528 8M

 Q529 8M

 Q533 3I

Ref No. Address

 Q534 2I

 Q535 3I

 Q536 3I

 Q537 3J

 Q538 2K

 Q539 4J

Ref No. Address

 Q540 3J

 Q542 2B

 Q543 2B

 Q544 2B

 D501 4D

 D502 4D

Ref No. Address

 D503 10E

 D504 4C

 D505 5C

 D506 7K

 D507 4B

 D508 4C

Ref No. Address

 D511 5N

 D512 2J

 D513 2M

 D514 4L

 D515 2J

 D516 2L

Ref No. Address

 D517 2M

 D519 2L

 D521 2K

 D523 2K

 D524 4J

 D526 5K

Ref No. Address

 D527 4K

 D528 6R

 D529 6G

RQP

NMLK

IHGF

C501

C529

C534

C537

C538

C540

C542

C543

C545

C547

C548

C549

C552

C554

C555

C557

C563

C565

C566

C567

C568

C571

C575

C576

C579

C580

C581

C582

C583

C585 C587

C589

C590

C592

C596

C597

C607

C610

C614

C622

C627

C632

C633

C634

C635

C636

C638

C639

C686

C692

D502

D505 D508

D512

IC512

1213

IC515

IC519

R501

R502

R505

R513

R521

R523

R525

R526

R527

R528

R532

R535

R539

R541

R545

R549

R550

R553

R557

R558

R559

R561

R562

R563

R564

R567

R568 R570

R572

R573

R575R576

R577 R578

R579

R580

R581

R582

R584

R701

R586

R588

R589

R591

R592

R596

R597

R598

R599R600

R601

R603

R622

R642

R643

R644

R645

R647

R646

R648

R652

R654

R656

R664

R665

R666

R670

TH501

C695

C696

R671

R547

R672

D528

R675

IC506

D529

R677

IC501

IC509

Q504

D506

D511

R533

R534

C574

C593

C694

L502

R680

R679

R678 C642

C641

D503

C697

R693

R510

R511

D513 D517 D519 D516 D521 D523 D515

D524

D514

D527

D526

Q501

Q502

Q518

Q506

Q507

Q505

Q509

Q510

Q511

Q512

Q513

Q524

Q523

D504

D507

D501

R698

C698

R699

C699

R706

R702

C701

R703

Q525

R707

R708 R709

R710 R711

R712

IC523

IC517

8 9

R715

Q528

Q529

C712

R655

Q538

Q540

Q537

Q539

Q534

Q536Q533

Q535

R734

R730

R736

R732

R733

R729R731

R735

IC513

IC505

IC508

4 5

IC510

R741 R744

Q542

Q544

Q543

R740

4 5

C525

C526

C528

C530

C531

C532

C533

C535

C536

C539

C541

C544

C546

C550

C551

C553

C558

C559

C562

C570

C572C573

C578

C584

C586

C588

C591

C594

C595

C599

C600

C601

C602

C603

C604 C605

C606

C608

C609

C611

C612

C613

C615

C616

C617

C618

C620

C621

C623

C624

C625

C626

C628

C629

C630

C631

C637 C666

C667 C668

C669 C670

C671

C672

C673 C674

C675 C676

C677 C678

C679

C680

C681

C682

C683

C684

C685

C687

C688

C689

C690

C691

C693

CN508

F501

F502

IC503

G IO

IC511

5 1

IC516

IC520

3 4

R504

R507

R508

R512R514

R515

R516

R517

R518

R519

R520

R522

R524

R529 R530

R531

R542

R543

R546

R552

R565

R566

R574

R583

R587

R594

R595

R604

R605 R606

R608

R609

R611

R612

R613

R615 R616

R621

R624

R625

R626

R628

R719

R631

R632

R633

R634

R635

R636

R638

R639

R641

R657

R661

R662

R663

R667

VR501

MIC SENS

X501

R695

R697

IC504

W501

CN506

CN505 R668

R674

R602

CN501

CN502

Q519

IC525

7 8

IC514

R536

R617

R618

R620

R619

R623

R629

R630R627

L501

R607

R659

C640 R658

R691

R537

R509

C527

IC522

R700

C700

C524

Q503

Q514

Q520

Q516

Q517

Q522

CN504

C619

CN507

R717

C598

R713

R714

R716

R676

R718

C703

R690

R720

C704

C705

C706

C707

R721

R722

C708

R723

Q526

Q527

Q530

IC526 R724

R725

C709

R726C710

C711

R727

Q531

Q532

R728

IC518

IC521

IC524 IC502

4 5

Q541

R742

X502

R746

R748

R747

RSI

SQL

DET

KEY

DE3

1 11

2333

AFO

DE3

RST

PSC

SID

SIH

SIA

SIE

DEO

AO1

AO3

AO4

SPM

RSSI

AI1

AI2

AI3

AI4

AI5

AO2

TXD2

RXD2

TXS

MCM

MI/DI

30 29

IN2

IN1

MCI

MCO

DEI

BC1

BC2

BC3

BC4

TXD2

RXD2

DEO

PTO

RS2

RS1

IGN

TRD

1/2

RST

MIC

4 5

26 50

100

DTI

TCN

TON

MCM

AS2

EPT

EMG

SQ 1

IGN

HR1

HR2

OS2

OS1

ES2

ES1

RS1

5C RST

17 16

J72-0567-42 B/3

PC BOARD VIEW TK-790/(B)/H(B)

CONTROL UNIT (X57-5610-XX) (B/3) -10 : TK-790/(B) K -11 : TK-790(B) K2 -12 : TK-790H(B) K Component side view + Foil side

Component side

Foil side

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Connect 1 and 4

Ref No. Address

 IC501 3R

 IC502 3B

 IC503 5R

 IC504 7F

 IC505 8H

 IC506 5P

 IC508 9C

Ref No. Address

 IC509 8B

 IC510 8G

 IC511 7H

 IC512 7B

 IC513 8E

 IC514 2L

 IC515 5D

Ref No. Address

 IC516 4M

 IC517 6F

 IC518 5B

 IC519 4N

 IC520 3N

 IC521 5C

 IC522 8R

Ref No. Address

 IC523 7L

 IC524 7B

 IC525 5H

 IC526 8G

 Q501 4P

 Q502 4P

 Q503 4Q

Ref No. Address

 Q504 9H

 Q505 7J

 Q506 3S

 Q507 3S

 Q509 5E

 Q510 6E

 Q511 5E

Ref No. Address

 Q512 6E

 Q513 5F

 Q514 10R

 Q516 7B

 Q517 7C

 Q518 3Q

 Q519 4R

Ref No. Address

 Q520 10O

 Q522 3K

 Q523 5N

 Q524 5N

 Q525 7L

 Q526 9G

 Q527 9G

Ref No. Address

 Q528 8G

 Q529 8G

 Q530 9H

 Q531 8H

 Q532 9H

 Q533 3K

 Q534 2K

Ref No. Address

 Q535 3K

 Q536 3K

 Q537 3J

 Q538 2I

 Q539 4J

 Q540 3J

 Q541 3R

Ref No. Address

 Q542 2R

 Q543 2R

 Q544 2R

 D501 4P

 D502 4P

 D503 10O

 D504 4Q

Ref No. Address

 D505 5Q

 D506 7I

 D507 4R

 D508 4Q

 D511 5F

 D512 2J

 D513 2G

Ref No. Address

 D514 4H

 D515 2J

 D516 2H

 D517 2G

 D519 2H

 D521 2I

 D523 2I

Ref No. Address

 D524 4J

 D526 5I

 D527 4I

 D528 6B

 D529 6M

ABCD E F G H I J K L M N O P Q R S

E 1

VR1

PC 4

IC1

C23

C30

C33

C29

C26

C19

C16

C40

C41

C42

C22

C32

C13

C17

C18

C7 C10

C11

R12

C36

R15

CN2

C25

CN1

CN3

+1 2 3 4

E C B PC

CN4

J72-0567-42 C/3

R7 R9

C21

C24

C27

C28

R10

C31

C12

C20

R11

R14

R13C38

C34 C39

C15

C14

C37

3 4

Q3 Q6

TK-790/(B) PC BOARD VIEWS

FINAL UNIT (X57-5610-XX) (C/3) -10 : TK-790/(B) K -11 : TK-790(B) K2 Component side view

FINAL UNIT (X57-5610-XX) (C/3) -10 : TK-790/(B) K -11 : TK-790(B) K2 Foil side view

97 98

Component side

Foil side

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Ref No. Address

 Q1 9I

 Q3 9I

 Q4 9I

 Q5 9P

 Q6 9P

 D5 10N

 D6 12P

Ref No. Address

 IC1 3H

 Q2 6H

 D1 5B

 D2 6B

 D3 5L

 D4 6N

Component side

Foil side

Pattern 1

Pattern 2

Pattern 3

Pattern 4

RQP

NMLK

IHGF

R7 R9

C21

C24

C27

C28

R10

C31

C12

C20

C1 C8

R11

R14

R13

C38

C34 C39

C15

C14

C37

3 4

Q3 Q6

E 1

VR1

PC 4

IC1

C23

C30

C33

C29

C26

C19

C16

C40

C41

C42

C22

C32

C13

C17

C18

C7 C10

C11

R12

C36

R15

CN2

C25

CN1

CN3

+1 2 3 4

E C B PC

CN4

J72-0567-42 C/3

PC BOARD VIEW TK-790/(B)

99 100

FINAL UNIT (X57-5610-XX) (C/3) -10 : TK-790/(B) K -11 : TK-790(B) K2 Component side view + Foil side

Component side

Foil side

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Connect 1 and 4

Ref No. Address Ref No. Address Ref No. Address

 IC1 3H Q5 6Q D4 6N

 Q1 6I Q6 6Q D5 4O

 Q2 6I D1 5B D6 3P

 Q3 6J D2 6B

 Q4 6J D3 5M

2SD2399

DTA144EUA

DTC114TU

DTC114YUA

DTC144EU

DTC363EK

DTD114EK

2SA1162

2SC2712

2SB1132

2SC2873

2SC2954

2SC3357

2SD1624

FMC2

FMW1 DTA114EUA

DTA114TUA

DTA144TKA

PCD3312CT

L78LR05B-FA AT24C64N10SI27

NJM4558M

2SK508NV

BU4094BCF

TC4013BF BU4066BCF M68702H

M68702L

MC33172D TDA8561Q

AN8009M AT29C020-90TI

TC35453F 78064GCA458EU

784214GC0518EU

TC7S02F

SA7025DK

NJM78L05UA

RH5VL42C TA7808S

M62364FP

TA31136FN

LC73872M

2SC2782 TA75S01F M67741H-32 2SD2531

2SC3120

2SC3722K

2SC4116

2SC4215

2SC4617

DTC114EUA

DTC144EUA

2SJ506

ABCD E F G H I J K L M N O P Q R S

L127

XF101

(W)

XF102

(N)

L117

L120

L123

L118

L119

L122

X101

L112

1PC

L111 L110

C313

C222

C207

R142

R155

C162

R146

C161 R145

C169

R151

C174

C156

R150C173

C163

R148

C152

C135

C134

A102

R137

R136

R127

R126

CN102

CN103

C165

IC301

R314 R315

R316 R319

C371

C304

C308

R320

R321

R322

R323

D301

D302

D303

D304

C324

C325

C326

C327

TC302

(C)

TC301

(A)

C331

C335

C333

C334C336

C329 R326

R334

5C 5C

OUT

R330

R335 C340

R332

R336

C322

C323

C315

C328

8CL

C339

R328

R333 C341

R331

R329

C338

R340

R338

R339

R341

C343

C345

C344

L310

R358

R346

R347

R344

R345

R348

C360

C349

C347

C359

C346

C350

C351

R349

R342

R343

R350

R351

L311

Q201

Q204

Q104

R203

8R 8R

9CL

R202

R201

C201

R204

R205

R207

C204

C202

C205

C208

C211

L201

L202 R134

R135

R132

C148

C144

L121

R133

C143

A101

C183

C132 C128

L131 L115 L114

R210 C213

R158

R159

R160

R143

C117

C123

C195

C178

Q102

R163

R161 R120

R123

C337

R312

R313

R324 C356

C203

R302

R303

R304

R301

R119

C125 R162

C124

R166

C133 C130

C126

C363C364

C310

C361 C332

L312

R121

R122

R124

CN202

C217

R164

C193

R108

R109 Q109

R112

C189

C191

C190

R114

18 PC

RSSI

SQL

DET

KEY

D103

C321

C319

C318

C312

L128

C147

L129

L130

Q307

Q308

Q310

Q311

D108 D109

D201

D202

D306

C220

C311

C314

R165

TH101

C194

L135

CN201

R167

C192

Q305 GS

DGS

Q306

L305

L306

C209

L301

L303

L302

L304

L307

L309

L308

Q312

CF102

(G)

CF104

(G)

CF103

(E)

CF101

(E)

CN104

CN101

CN203

X301

++ + +

10 11

CP DT EP UL

RF RN

+ +

STR DT

CK ES

J72-0567-42 A/3

TK-790/(B)/H(B) PC BOARD VIEW

101 102

TX-RX UNIT (X57-5610-XX) (A/3) -10 : TK-790/(B) K -11 : TK-790(B) K2 -12 : TK-790H(B) K Component side view

Component side

Foil side

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Ref No. Address

 IC301 10D

 Q102 6I

 Q104 4E

 Q109 9P

 Q201 2D

 Q204 2E

 Q305 5D

Ref No. Address

 Q306 8D

 Q307 9C

 Q308 6C

 Q310 7B

 Q311 9B

 Q312 6B

 D103 9P

Ref No. Address

 D108 7R

 D109 9R

 D201 3C

 D202 3E

 D301 8F

 D302 5F

 D303 8F

Ref No. Address

 D304 5F

 D306 4B

RQP

NMLK

IHGF

IC101

IC203

IC202

Q202

Q206

R144 L126

C157

C160 C159

C168 C170

R149

R153

C171

R152

C172

C177

R156

C167 C175

C176 R157

C214

C210

C218

C221

C225

C206

R217

R215

R212

R213

C140

C145

C139

C141

C146

C179

C181

C182

C180

C138

R125

R138

C153

C155

C158

R139

R141

C154

R311

R307

R308

C352

C353

R310

C307

C306

C317

C355

C316

C354

L102 L104

L107

L105

L101

L103

Q101 E

C101

C102

C104

C103

C105

C107

R104

R102

R103

L109

R101

C106

R105

R107

R106 C108

C121

R117

R118

R116

D102 D104

C111

C110

R113

C113

C112

C116

C118

C114

R110

R111

C119

C120

C227

C223

C226

R309

R317 C303

R354

R357

R355

C358

C357

C302

C301

C348

R206

R209

R211

R208

R352

C129

C131

R216

R218

R219

R220

R221

C219

R337

R327

R325

C320

R214

C216

R305

C342

C366

C362

L314

C215

C224

C127

C330

D305

C370

R361

L313

C365

R318

R129

C309

R306 C305

C166

L134

L132 L133

C187 C188

C184

C186

C185

R115

D101

C151

D105

R128

Q105

Q106

Q107

Q108

Q203

Q205

Q301

Q302

Q303

Q304

Q309

D106

D107

L136

IC201

R366

J72-0567-42 A/3

103 104

TX-RX UNIT (X57-5610-XX) (A/3) -10 : TK-790/(B) K -11 : TK-790(B) K2 -12 : TK-790H(B) K Foil side view

Component side

Foil side

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Ref No. Address

 IC101 8D

 IC201 10J

 IC202 10F

 IC203 10H

 Q101 3D

 Q105 9F

 Q106 9F

PC BOARD VIEW TK-790/(B)/H(B)

Ref No. Address

 Q107 8F

 Q108 9C

 Q202 6E

 Q203 6E

 Q205 6F

 Q206 6F

 Q301 9L

Ref No. Address

 Q302 9L

 Q303 10N

 Q304 10N

 Q309 8Q

 D101 10C

 D102 4F

 D104 4G

Ref No. Address

 D105 3H

 D106 8J

 D107 8F

 D305 8P

ABCD E F G H I J K L M N O P Q R S

IC101

IC203

IC202

Q202

Q206

R144 L126

C157

C159

C160

C168

C170

R149

R153

C171

R152

C172

C177

R156

C167 C175

C176

R157

C214

C210

C218

C221

C225

C206

R217

R215

R212

R213

C140

C145

C139

C141

C146

C179

C181 C182

C180

C138

R125

R138

C153

C155

C158

R139

R141

C154

R311

R307

R308

C352

C353

R310

C307

C306

C317

C355

C316

C354

L102L104

L107

L105

L101

L103

Q101 E

C101

C102

C104

C103

C105

C107

R104

R102

R103

L109

R101

C106

R105

R107

R106

C108

C121

R117

R118

R116 D102

D104

C111

C110

R113

C113

C112

C116

C118

C114

R110

R111

C119

C120

C227

C223

C226

R309

R317

C303

R354

R357

R355

C358

C357

C302

C301

C348

R206

R209

R211

R208

R352

C129

C131

R216

R218

R219

R220

R221

C219

R337

R327

R325

C320

R214

C216

R305

C342

C366

C362

L314

C215

C224

C127

C330

D305

C370

R361

L313

C365

R318

R129

C309

R306 C305

C166

L134

L132 L133

C187 C188

C184

C186

C185

R115 D101

C151

D105

R128

Q105

Q106

Q107

Q108

Q203

Q205

Q301

Q302

Q303

Q304

Q309

D106

D107

L136

IC201

R366

L127

XF101

(W)

XF102

(N)

L117

L120

L123

L118

L119

L122

X101

L112

1PC

L111 L110

C313

C222

C207

R142

R155

C162

R146

C161 R145

C169

R151

C174

C156

R150

C173

C163

R148

C152

C135

C134

A102

R137

R136

R127

R126

CN102

CN103

C165

IC301

R314 R315

R316 R319

C371

C304

C308

R320

R321

R322

R323

D301

D302

D303

D304

C324

C325

C326

C327

TC302

(C)

TC301

(A)

C331

C335

C333

C334C336

C329 R326

R334

5C 5C

OUT

R330

R335 C340

R332

R336

C322

C323

C315

C328

8CL

C339

R328

R333 C341

R331

R329

C338

R340

R338

R339

R341

C343

C345

C344

L310

R358

R346

R347

R344

R345

R348

C360

C349

C347

C359

C346

C350

C351

R349

R342

R343

R350

R351

L311

Q201

Q204

Q104

R203

8R 8R

9CL

R202

R201

C201

R204

R205

R207

C204

C202

C205

C208

C211

L201

L202 R134

R135

R132

C148

C144

L121

R133

C143

A101

C183

C132 C128

L131 L115 L114

R210 C213

R158

R159

R160

R143

C117

C123

C195

C178

Q102

R163

R161 R120

R123

C337

R312

R313

R324 C356

C203

R302

R303

R304

R301

R119

C125 R162

C124

R166

C133 C130

C126

C363

C364

C310

C361 C332

L312

R121

R122

R124

CN202

C217

R164

C193

R108

R109 Q109

R112

C189

C191

C190

R114

18 PC

RSSI

SQL

DET

KEY

D103

C321

C319

C318

C312

L128

C147

L129

L130

Q307

Q308

Q310

Q311

D108

D109

D201

D202

D306

C220

C311

C314

R165

TH101

C194

L135

CN201

R167

C192

Q305 GS

DGS

Q306

L305

L306

C209

L301

L303

L302

L304

L307

L309

L308

Q312

CF102

(G)

CF104

(G)

CF103

(E)

CF101

(E)

CN104

CN101

CN203

X301

++ + +

10 11

CP DT EP UL

RF RN

+ +

STR DT

CK ES

J72-0567-42 A/3

TK-790/(B)/H(B) PC BOARD VIEW

105 106

TX-RX UNIT (X57-5610-XX) (A/3) -10 : TK-790/(B) K -11 : TK-790(B) K2 -12 : TK-790H(B) K Component side view + Foil side

Component side

Foil side

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Connect 1 and 4

Ref No. Address

 IC101 8P

 IC201 10J

 IC202 10N

 IC203 10L

 IC301 10D

 Q101 3P

 Q102 6I

Ref No. Address

 Q104 4E

 Q105 9N

 Q106 9N

 Q107 8N

 Q108 9Q

 Q109 9P

 Q201 2D

Ref No. Address

 Q202 6O

 Q203 6O

 Q204 2E

 Q205 6N

 Q206 6N

 Q301 9H

 Q302 9H

Ref No. Address

 Q303 10F

 Q304 10F

 Q305 5D

 Q306 8D

 Q307 9C

 Q308 6C

 Q309 8C

Ref No. Address

 Q310 7B

 Q311 9B

 Q312 6B

 D101 10Q

 D102 4N

 D103 9P

 D104 4M

Ref No. Address

 D105 3L

 D106 8J

 D107 8N

 D108 7R

 D109 9R

 D201 3C

 D202 3E

Ref No. Address

 D301 8F

 D302 5F

 D303 8F

 D304 5F

 D305 8D

 D306 4B

TRPNLJHFDB SQ

OMKIGECA

CIRCUIT DIAGRAM TK-790/(B)

110

Note : Components marked with a dot (·) are

parts of pattern 1.

111

ACEGI K MOQS

BDF H J L N P R T

TK-790H(B) CIRCUIT DIAGRAM Note : Components marked with a dot (·) are parts of pattern 1.

IC1

C72

L10

C71

C53

R24

R16

C51

C58 C70

C49

C66

R17

C60

L11

C64

VR1

APC

C80

C79

C36

C77

C75

C26

R11

C76

C78

C27

C17

C20

C12

R23

Q11

Q10

C6C4

2 3

R12

C10

C14

C68

C82

C62

C59

C69

C55 C61

C57

C81

C9 C63

R19

R18

C11C8

R22

R20

R21

R1 CN1

CN2

E C B

C18

C15

C13

43 2 1

C74

C65 +

C67

C52

C19

C47

C16

C23

C21

C22

C25

C73

CN3

CN4

GND

C24

R10

C28

C29

C33 C32

C30

C31

C35 C34

C48

C45

C50

C42

R13

C40

C41

C43

C46

C38

C39

C37

W1 C44

TH1

J72-0568-02

2 3

116

PC BOARD VIEW TK-790H(B)

Component side

Foil side

FINAL UNIT (X45-3560-10) Component side view : TK-790H(B)

TK-790/(B)/H(B)

BLOCK DIAGRAM

117

119

TK-790/(B)/H(B)

SPECIFICATIONS

GENERAL

Frequency Range ............................................... TK-790 : 148 to 174MHz (K), 136 to 156MHz (K2) TK-790H : 148 to 174MHz (K)

Number of Channels ......................................... 160 channels

Channel Spacing ................................................ 30kHz, 25kHz (Wide) / 15kHz, 12.5kHz (Narrow)

Operating Voltage .............................................. TK-790 : 13.6V DC±15%, TK-790H : 13.4V DC±15% negative ground

Current Drain ..................................................... 0.6A on standby

2.2A on receive

TK-790 : 12A, TK-790H : 25A on transmit

Duty Cycle ......................................................... Transmit 20%

Frequency Stability ............................................ ±0.0002% (–30°C to +60°C)

Operating Temperature Range .......................... –30°C to +60°C (–22°F to +140°F)

Dimensions & Weight ....................................... TK-790 : 7.01" (178mm) W x 2.36" (60mm) H x 7.68" (195mm) D, 5.61lbs (2.3kg)

7.01" (178mm) W x 2.36" (60mm) H x 8.98" (228mm) D, 5.72lbs (2.6kg) with KCH-10

TK-790H : 7.01" (178mm) W x 2.36" (60mm) H x 12.88" (327mm) D, 7.92lbs (3.6kg)

RECEIVER (Measurements made per EIA standard EIA/TIA-240-D)

Antenna Impedance .......................................... 50Ω

Sensitivity .......................................................... 12dB SINAD : 0.25µV, 20dB Quieting : 0.35µV

Selectivity .......................................................... 85dB (Wide) / 80dB (Narrow)

Intermodulation ................................................. 80dB (Wide) / 75dB (Narrow)

Spurious and Image Rejection .......................... 90dB

Audio Output ..................................................... 13W at 4Ω less than 5% distortion (12W at 4Ω less than 3% distortion)

Band Spread ...................................................... TK-790 : 26MHz (K), 20MHz (K2) TK-790H : 26MHz (K)

TRANSMITTER (Measurements made per EIA standard EIA-152-C)

RF Power Output ............................................... TK-790 : 45W adjustable to 5W, TK-790H : 110W adjustable to 45W

Antenna Impedance .......................................... 50Ω

Spurious Response ........................................... 80dB

Type of Emission ............................................... 16K0F3E (Wide) / 11K0F3E (Narrow)

FM Hum and Noise ........................................... 53dB (Wide) / 47dB (Narrow)

Microphone Impedance .................................... 600Ω

Audio Distortion ................................................. Less than 2% at 1000Hz

Band Spread ...................................................... TK-790 : 26MHz (K), 20MHz (K2) TK-790H : 26MHz (K)

KENWOOD follows a policy of continous advancement in development. For this reason, specifications may be changed without notice.

APPLICABLE (MIL-STD)

Military Standard Method/Procedures

810C 810D 810E

Low Pressure 500.1/Procedure I500.2/Procedure I, II 500.3/Procedure I, II

High temperature 501.1/Procedure I, II 501.2/Procedure I, II 501.3/Procedure I, II

Cat, A1 Cat, A1

Low Temperature 502.1/Procedure I502.2/Procedure I, II 502.3/Procedure I, II

Cat, C1 Cat, C1

Temperature Shock 503.1/Procedure I503.2/Procedure I503.3/Procedure I

Cat, A1,C1 Cat, A1,C1

Solar Radiation 505.1/Procedure I505.2/Procedure I505.3/Procedure I

Rain (Procedure I : Control head only) 506.1/Procedure I, II 506.2/Procedure I, II 506.3/Procedure I, II

Humidity 507.1/Procedure II 507.2/Procedure II 507.3/Procedure II

Salt Fog 509.1/Procedure I509.2/Procedure I509.3/Procedure I

Dust 510.1/Procedure I510.2/Procedure I510.3/Procedure I

Vibration 514.2/Procedure

VIII

514.3/Procedure I514.4/Procedure I

Cat, 8 Cat, 8

Shock 516.2/Procedure I, II,

516.3/Procedure I, I

516.4/Procedure I, I

TK-790/(B)/H(B)

KENWOOD CORPORATION

14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo 150-8501, Japan

KENWOOD SERVICE CORPORATION

P.O. BOX 22745, 2201 East Dominguez Street, Long Beach, CA 90801-5745, U.S.A.

KENWOOD ELECTRONICS CANADA INC.

6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

KENWOOD ELECTRONICS DEUTSCHLAND GMBH

Rembrücker Str. 15, 63150 Heusenstamm, Germany

KENWOOD ELECTRONICS BELGIUM N.V.

Mechelsesteenweg 418 B-1930 Zaventem, Belgium

KENWOOD ELECTRONICS FRANCE S.A.

13, Boulevard Ney, 75018 Paris, France

KENWOOD ELECTRONICS U.K. LIMITED

KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB United Kingdom

KENWOOD ELECTRONICS EUROPE B.V.

Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands

KENWOOD ELECTRONICS ITALIA S.p.A.

Via G. Sirtori, 7/9 20129 Milano, Italy

KENWOOD IBERICA S.A.

Bolivia, 239-08020 Barcelona, Spain

KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.

(A.C.N. 001 499 074)

16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia

KENWOOD ELECTRONICS (HONG KONG) LTD.

Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Kwai Fong, N.T., Hong Kong

KENWOOD ELECTRONICS TECHNOLOGIES(S) PTE LTD.

Sales Marketing Division

1 Ang Mo Kio Street 63, Singapore 569110

TK 790_(B)_H(B) (REV) (K,K2) TK790

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