Kenwood TM 271A_271E Service Manual TM271

User Manual: TM271

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© 2003-10 PRINTED IN JAPAN
B51-8663-00 (N) 743
VHF FM TRANSCEIVER
TM-271A/271E
SERVICE MANUAL
CIRCUIT DESCRIPTION ............................ 2
SEMICONDUCTOR DATA ........................ 8
COMPONENTS DESCRIPTION ................ 9
PARTS LIST ............................................. 10
EXPLODED VIEW.................................... 17
PACKING ................................................. 18
RESETTING THE TRANSCEIVER ........... 19
ADJUSTMENT ........................................ 20
TERMINAL FUNCTION ........................... 27
PC BOARD
DISPLAY UNIT (X54-3450-10) ............ 28
TX-RX UNIT (X57-685X-XX)............... 30
SCHEMATIC DIAGRAM.......................... 34
BLOCK DIAGRAM ................................... 38
LEVEL DIAGRAM .................................... 40
SPECIFICATION ................... BACK COVER
CONTENTS
Microphone
(T91-0624-05)
Cabinet
(A01-2193-01)
Panel assy
(A62-1088-03)
Knob (Encoder)
(K29-9293-03)
Knob (Volume)
(K29-9292-03)
Key top
(K29-9291-01)
Microphone
(T91-0641-05)
Cabinet
(A01-2193-01)
Panel assy
(A62-1088-03)
Knob (Encoder)
(K29-9293-03)
Knob (Volume)
(K29-9292-03)
Key top
(K29-9291-01)
TM-271A (M2,M4)
TM-271A/E (K,M3,E)
TM-271A/271E
2
Frequency Configuration
The receiver utilizes double conversion. The first IF is
49.95MHz and the second IF is 450kHz. The first local oscil-
lator signal is supplied from the PLL circuit.
The PLL circuit in the transmitter generates the necessary
frequencies. Figure 1 shows the frequencies.
CIRCUIT DESCRIPTION
Receiver System
The receiver is double conversion superheterodyne. The
frequency configuration is shown in Figure 1.
■ Front-end RF Amplifier
An incoming signal from the antenna is applied to an RF
amplifier (Q353) after passing through a transmit/receive
switch circuit (D603, D605 are off) and a band pass filter
(L357, L356 and varactor diodes : D353, D354). After the
signal is amplified (Q353), the signal is filtered through a band
pass filter (L354, L355 and varactor diodes: D351, D352) to
eliminate unwanted signals before it is passed to the first
mixer.
The voltage of these diodes are controlled by tracking the
CPU (IC101) center frequency of the band pass filter. (See
Fig. 2.)
■ First Mixer
The signal from the RF amplifier is heterodyned with the
first local oscillator signal from the PLL frequency synthesizer
circuit at the first mixer (Q352) to create a 49.95MHz first
intermediate frequency (1st IF) signal. The first IF signal is
then fed through one pair of monolithic crystal filter (MCF :
XF351) to further remove spurious signals.
ANT
SW
RF
AMP
1st
MIX
AF
PA
TCXO
MIC
AMP
X3
multiply
RF
AMP
POWER
AMP
CF 450kHz
MCF
49.95MHz
IF SYSTEM
PLL/VCO
16.8MHz
50.4MHz
ANT
RX
TX
SP
MIC
1/2
Fig. 1 Frequency configuration
■ IF Amplifier
The first IF signal is amplified by Q351, and then goes to
IC301 (FM processing IC). The signal is heterodyned again
with a second local oscillator signal within IC301 to create a
450kHz second IF signal. The second IF signal is then fed
through a 450kHz ceramic filter (Wide : CF301, Narrow :
CF302) to further eliminate unwanted signals before it is am-
plified and FM detected in IC301.
Item Rating
Nominal center frequency 49.95MHz
Pass bandwidth ±5.0kHz or more at 3dB
35dB stop bandwidth ±20.0kHz or less
Ripple 1.0dB or less
Insertion loss 5.0dB or less
Guaranteed attenuation 80dB or more at fo±1MHz
Spurious 40dB or more
Terminal impedance 350Ω / 5.5pF
Table 1 Crystal filter (L71-0620-05) : XF351
Item Rating
Nominal center frequency 450kHz
6dB bandwidth ±6.0kHz or more
50dB bandwidth ±12.5kHz or less
Ripple 2.0dB or less
Insertion loss 6.0dB or less
Guaranteed attenuation 35.0dB or more within fo±100kHz
Terminal impedance 2.0kΩ
Table 2 Ceramic filter (L72-0993-05) : CF301
Item Rating
Nominal center frequency 450kHz
6dB bandwidth ±4.5kHz or more
50dB bandwidth ±10.0kHz or less
Ripple 2.0dB or less
Insertion loss 6.0dB or less
Guaranteed attenuation 60.0dB or more within fo±100kHz
Terminal impedance 2.0kΩ
Table 3 Ceramic filter (L72-0999-05) : CF302
ANT
L357,356
D353,354
BPF
Q353
RF AMP
Q351
IF AMP
IC161
D/A CONVERTER
Q352
MIX
XF351
MCF
D602
D603
D605
ANT
SW
IC161
D/A
IC203
DC AMP
Q302
X3 multiply
IC402
1/2 divider X401
TCXO
IC301
IF system
1st local
OSC (VCO/PLL)
W/NO
(EVOL2)
CF301 (Wide)
CF302 (Narrow)
TV
CPU
L354,355
D351,352
BPF
Fig. 2 Receiver system
TM-271A/271E
3
■ Wide/Narrow Switching Circuit
The Wide port (pin 65) and Narrow port (pin 64) of the CPU
is used to switch between ceramic filters. When the Wide
port is high, the ceramic filter SW diodes (D303, D302) cause
CF301 to turn on to receive a Wide signal.
When the Narrow port is high, the ceramic filter SW di-
odes (D303, D302) cause CF302 to turn on to receive a Nar-
row signal. (See Fig. 3.)
■ AF Signal System
The detection signal from IF IC (IC301) goes to D/A con-
verter (IC161) to adjust the gain and is output to AF filter
(IC251) for characterizing the signal. The AF signal output
from IC251 and the DTMF signal, BEEP signal are summed
and the resulting signal goes to the D/A converter (IC161).
The AFO output level is adjusted by the D/A converter. The
signal output from the D/A converter is input to the audio
power amplifier (IC252). The AF signal from IC252 switches
between the internal speaker and speaker jack (J1) output.
(See Fig. 4.)
■ Squelch Circuit
The detection output from the FM IF IC (IC301) passes
through a noise amplifier (Q301) to detect noise. A voltage is
applied to the CPU (IC101). The CPU controls squelch ac-
cording to the voltage (SQIN) level. The signal from the RSSI
pin of IC301 is used for S-meter. The electric field strength of
the receive signal can be known before the SQIN voltage is
input to the CPU, and the scan stop speed is improved.
Narrow
IC101 64pin
IF_IN MIX_O
IC301
IF System
CF302
(Narrow)
CF301
(Wide)
R320
R319
R317
R318
D303 D302
Wide
IC101 65pin
AF
Filter
D/A
CONV.
D/A
CONV.
IC161 IC251 IC161
W/NO
(EVOL2) AF PA
IC252 SP
IF IC
IC301
Q301
NOISE AMP D301IC301 IC101
AFO
RSSI
DET
CPU
IF
SYSTEM
SQIN
RSSI
Fig. 3 Wide/Narrow switching circuit
Fig. 4 AF signal system
Fig. 5 Squelch circuit
PLL Frequency Synthesizer
The PLL circuit generates the first local oscillator signal for
reception and the RF signal for transmission.
■ PLL
The frequency step of the PLL circuit is 5 or 6.25kHz. A
16.8MHz reference oscillator signal is divided at IC401 by a
fixed counter to produce the 5 or 6.25kHz reference fre-
quency. The voltage controlled oscillator (VCO) output signal
is buffer amplified by Q410, then divided in IC401 by a dual-
module programmable counter. The divided signal is com-
pared in phase with the 5 or 6.25kHz reference signal in the
phase comparator in IC401. The output signal from the
phase comparator is filtered through a low-pass filter and
passed to the VCO to control the oscillator frequency. (See
Fig. 6.)
■ VCO
The operating frequency is generated by Q406 in transmit
mode and Q405 in receive mode. The oscillator frequency is
controlled by applying the VCO control voltage, obtained
from the phase comparator, to the varactor diodes (D405 and
D406 in transmit mode and D403 and D404 in receive mode).
The TX/RX pin is set high in receive mode causing Q408 and
Q407 to turn Q406 off, and turn Q405 on. The TX/RX pin is
set low in transmit mode. The outputs from Q405 and Q406
are amplified by Q410 and sent to the RF amplifiers. (See Fig.
6.)
D405,406
Q406
TX VCO
Q410
BUFF
AMP
D403,404
Q405
RX VCO
Q407,408
T/R SW
Charge
pump
LPF
Phase
comparator
1/M
1/N 5kHz/6.25kHz
5kHz/6.25kHz
REF
OSC
16.8MHz
PLL
DATA
IC401 : PLL IC
Q404
AMP
RF amplifiers
Q402,403
TX/RX (CPU)
Fig. 6 PLL circuit
CIRCUIT DESCRIPTION
TM-271A/271E
4
■ Unlock Circuit
During reception, the 8RC signal goes high, the 8TC signal
goes low, and Q34 turns on. Q33 turns on and a voltage is
applied to 8R. During transmission, the 8RC signal goes low,
the 8TC signal goes high and Q36 turns on. Q35 turns on and
a voltage is applied to 8T.
The CPU monitors the PLL (IC401) LD signal directly.
When the PLL is unlocked during transmission, the PLL LD
signal goes low. The CPU detects this signal and makes the
8TC signal low. When the 8TC signal goes low, no voltage is
applied to 8T, and no signal is transmitted. (See Fig. 7.)
IC101
CPU
Q34
SW
Q33
SW
IC401
PLL
Q36
SW
Q35
SW
LD
8RC
8C
8R 8T
8TC
PLL lock
: LD “H”
Fig. 7 Unlock circuit
Transmitter System
■ Outline
The transmitter circuit produces and amplifies the desired
frequency directly. It FM-modulates the carrier signal by
means of a varicap diode.
■ Power Amplifier Circuit
The transmit output signal from the VCO passes through
the transmission/reception selection diode (D409) and ampli-
fied by Q501, Q502 and Q503. The amplified signal goes to
the final amplifier (Q504) through a low-pass filter. The low-
pass filter removes unwanted high-frequency harmonic com-
ponents, and the resulting signal is transmitted through the
antenna terminal. (See Fig. 8.)
■ APC Circuit
The automatic transmission power control (APC) circuit
detects part of a final amplifier output with a diode (D606,
D607) and applies a voltage to IC501. IC501 compares the
APC control voltage (PC) generated by the D/A converter
(IC161) and DC amplifier (IC203) with the detection output
voltage. IC501 generates the voltage to control Q503 and
Q504 and stabilizes transmission output.
The APC circuit is configured to protect over current of
Q503 and Q504 due to fluctuations of the load at the antenna
end and to stabilize transmission output at voltage and tem-
perature variations. (See Fig. 9.)
RF
AMP
Q501
DRIVE
AMP
Q503
FINAL
AMP
Q504
PRE
DRIVE
AMP
Q502
DC
AMP
IC203
ANT
SW
D602,D603
D605
LPF
ANT
POWER
DET
D606
D607
IC501
VR601
APC
CONTROL
D409
IC161
(PC/TVO)
(PC)
Q411
RF AMP
Q501
RF AMP
Q502
PRE
DRIVE AMP
Q503
ANT
DRIVE
AMP
Q504
FINAL
AMP
IC402
1/2
DIVIDER
IC161 Q406
D/A
CONVERTER
D/A
CONVERTER
D/A
CONVERTER
X401
TCXO
16.8MHz
VCO
IC401
PLL
Q410
BUFFER
Q404
RF AMP
IC203
BUFFER
IC101
IC161
MIC KEY
INPUT CPU
IC161
IC203
SUM
AMP
IC202IC201
MIC
MIC/IDC SPLATTER
FILTER
Fig. 9 APC circuit
Fig. 8 Transmitter system
CIRCUIT DESCRIPTION
TM-271A/271E
5
Control Circuit
The CPU carries out the following tasks (See Fig. 10.):
1) Controls the WIDE, NARROW, TX/RX outputs.
2) Adjusts the AF signal level of the AF filter (IC251) and
turns the filter select compounder on or off.
3) Controls the display unit.
4) Controls the PLL (IC401).
5) Controls the D/A converter (IC161) and adjusts the vol-
ume, modulation and transmission power.
■ Memory Circuit
The transceiver has an 64k-bit EEPROM (IC66). The
EEPROM contains adjustment data. The CPU (IC101) con-
trols the EEPROM through three serial data lines. (See Fig.
11.)
IC161
D/A
converter
IC401
PLL
IC101
CPU
LD
DT
CK
PLLE
EEPCK
IC101
CPU
IC66
EEPROM
EEPSDT
EEPWP
■ Display Circuit
The CPU (IC101) controls the display LCD and LEDs.
When power is on, the LCD driver will use the BL line to con-
trol the LCD illumination and key backlight LEDs.
The brightness function is controlled by the switch Q12.
The LCD driver (IC3) and CPU (IC101) communicate through
the CE, CL, DI, DO lines. (See Fig. 12.)
■ Key Matrix Circuit
The TM-271 front panel has function keys. Each of them
is connected to a cross point of a matrix of the KI1 to KI3 and
KSI to KS2 ports of the LCD driver.
The LCD driver monitors the status of the KI1 to KI3 and
KS1 to KS2 ports. If the state of one of the ports changes,
the LCD driver assumes that the key at the matrix point corre-
sponding to that port has been pressed.
■ Encode
The DCS and CTCSS signals are output from QT/DQT of
the CPU (IC101) and summed with the external pin DI line by
the summing amplifier (IC203) and the resulting signal goes
to the D/A converter (IC161). The DTMF signal is output from
DTMF pin of the CPU and summed with a MIC signal by the
summing amplifier (IC203), and the resulting signal goes to
the D/A converter (IC161).
The D/A converter (IC161) adjusts the MOD level and the
balance between the MOD and CTCSS/DCS levels. Part of a
CTCSS/DCS signal is summed with MOD and the resulting
signal goes to the VCOMOD pin of the VCO. This signal is
applied to a varicap diode in the VCO for direct FM modula-
tion.
IC3
LCD
driver
KI1
KI2
KI3
KS2
KS1
FUNC
REV
CALL
VFO
MR
MHz
(Encoder)
X401
TCXO
IC161
D/A VCO
IC203
SUM
AMP
IC203
SUM
AMP
IC401
PLL
TCXO
MOD
VCO
MOD
Amp
DI
QT/DQT
(CPU1)
DTMO
(EVOL15)
IC101
CPU
TONE
DTMF
Fig. 10 Control circuit
Fig. 11 Memory circuit
Q10
SW
Q6
SW
IC101
CPU
D2~D4
Q9
SW D19~D30
Q12
SW
IC3
LCD
driver
CE
CL
DI
DO
BL
COM0~
COM3
SEG0~
SEG30
LCD
BRI
Fig. 12 Display circuit
Fig. 13 Key matrix circuit
Fig. 14 Encoder
CIRCUIT DESCRIPTION
TM-271A/271E
6
■ Decode
• CTCSS/DCS
The signal (W/NO (EVOL2)) goes to DTMF IN (pin 95) of
CPU (IC101). The CTCSS/DCS signal will pass through the
low-pass filters in the CPU (IC101) and be decoded within the
CPU (IC101). The DTMF signal will be decoded within the
CPU (IC101).
■ D/A Converter
The D/A converter (IC161) is used to adjust MO modula-
tion, AF volume, TV voltage, FC reference voltage, and PC
POWER CONTROL voltage level.
Adjustment values are sent from the CPU as serial data.
The D/A converter has a resolution of 256 and the following
relationship is valid:
D/A output = (Vin – VDAref) / 256 x n + VDAref
Vin: Analog input
VDAref: D/A reference voltage
n: Serial data value from the microprocessor (CPU)
Power Supply Circuit
When the power switch on the display unit is pressed, the
power port on the display unit which is connected port 17
(POWER), goes low, then port 82 (SBC) goes high, Q32 turns
on, SB SW (Q31) turns on and power (SB) is supplied to the
radio.
When the DC power supplied to the radio, the voltage
regulator IC (IC33) supply into the CPU VDD and reset voltage
detect IC (IC34). IC34 will generate signal (RESET) in to the
reset terminal on the CPU (IC101) to carry out a power ON
reset. If DC power is less than about 9.5V, the radio is unable
to power on.
When the DC power voltage deceases from normal volt-
age, the INT voltage detector IC (IC35) will set to high on CPU
port 18 (INT) if B line will became less than about 9.5V. Then
CPU send to EEPROM (IC66) the backup data and go into
STOP mode.
This circuit has an overvoltage protection circuit. If a DC
voltage of 18V or higher is applied to the base of Q61, this
voltage turns Q61 on and will set to high on CPU port 18
(INT). Then CPU send to EEPROM (IC66) the backup data
and go into stop mode. (See Fig. 16.)
IC101
CPU
DTMF IN W/NO (EVOL2)
95
Q71
SW
Q31
SW
Q32
SW
Q61
SW
IC33
AVR
D61D62
B
IC34
RST
SBC
IGN
R77R76
R39R40
INT
5M
BATT
IC101
CPU
POWER
SW
POWER
RESET
5M
IC35
INT
SB
IGN
Fig. 15 Decode
Fig. 16 Power supply circuit
CIRCUIT DESCRIPTION
Data Terminal and Peripheral Circuits
CN2 (data terminal) is the data communications terminal
on the TX/RX PCB. It handles transmission control, data in-
put/output, and squelch signals.
There are two data communications modes : 9600bps
mode and 1200bps mode. Unlike with 1200bps AFSK, with
this type of high-speed modulation, frequency modulation is
carried out after the digital base band signals (rectangular
wave) are passed through a band limiting filter. For 9600bps
GMSK for example, compared to 4800Hz signals (nearly sine
wave signals passed through a filter), these signals have a
hissing sound like digital modulation when listened to by ear.
Different types of modulation, such as GMSK is distin-
guished by the type of band limiting filter.
Pin Pin Specification
No. Name
1PKD bps switching 1200bps 9600bps
Modulation input 400mVp-p 4Vp-p
Frequency shift 3±0.5kHz 2.2±0.5kHz
4PR9 Output level 500mVp-p/10kΩ
Always output during reception
5PR1 Output level 500mVp-p/10kΩ
Not output when squelch off
Table 4 Data terminal input/output level
TM-271A/271E
7
■ Transmission Signals
Transmission modulation signals enter from PKD of the
data terminal (CN2). The path to the modulation depends on
whether communications are 1200bps or 9600bps mode.
For 1200bps mode, the transmission modulation signals
from single analog switch (IC204) pass through MIC amplifier
(IC201,202) and summing amplifier (IC203), and go to VCO
(X401) through D/A converter (IC161).
For 9600bps mode, the transmission modulation signals
from single analog switch (IC205) pass through summing
amplifier (IC303), go to TCXO (X401) and VCO through D/A
converter (IC161). (See Fig. 17.)
■ Reception Signals
PR9 is the 9600bps data communications reception out-
put. It outputs the FM detection circuit output through an AF
filter (IC251). These signals are always output whether the
squelch is open or closed.
PR1 is the 1200bps data communications reception out-
put. It outputs the FM detection circuit output through an AF
filter (IC251). Output is controlled with the mute switch
(Q252) according to whether squelch is open or closed. (See
Fig. 17.)
■ Squelch Signal Output Circuit
The squelch circuits is input to the TNC to prevents con-
flicts from occurring between simultaneous receive mode
and transmit mode traffic during packet communications
(only during 1200bps). The signal is output from pin 29 of
IC101 to the data terminal. The logic is as shown in the table
below.
SQC terminal output L : SQ CLOSE
CN2 H : SQ BUSY
IC204
Analog
switch
IC201,202
MIC amp
IC203
Sum amp
IC205
Analog
switch
IC251
AF filter
76
75
IC101
CPU
1200bps
9600bps VCO, TCXO,
D/A converter
D/A converter
Q252
Mute SW
D6
D5
PKS (CPU) pin 30
SQC (CPU) pin 29
PKD
PR9
PR1
PKS
SQC
CN2
CIRCUIT DESCRIPTION
Fog. 17 Data terminal and peripheral circuits
TM-271A/271E
8
SEMICONDUCTOR DATA
■ Terminal Function
Pin No. Name I/O Function
1TONE O CTCSS/DCS/Clone output
2DTMF O DTMF/BEEP/1750Hz output
3PLLE O PLL IC chip select
4,5 NC I
6GND - GND.
7CNVSS -
8EVLLD O
9BSHIFT O Beat shift
10 RESET - Reset
11 XOUT - X’tal (8MHz)
12 VSS - GND
13 XIN - X’tal (8MHz)
14 VCC - +5V
15 NMI - (Input only)
16 NC I
17 POWER I Power key input
18 INT I µcom stop
19 NC I
20 TX/RX O TX/RX
21 UL I PLL unlock detect
22,23 NC I
24 EEPSDT I/O EEPROM data
25 EEPCK O EEPROM clock
26 EEPWP O EEPROM write protect
27,28 NC I (Nch open drain)
29 SQC O Squelch signal output for TNC
(TxD for flash)
30 PKS I PTT input for TNC (RxD for flash)
31 CLKFLS I (GND)
32 BSYFLS O (Vcc)
33 TXD O To PC
34 RXD I From PC
35 PTT I PTT input
36~38 NC I
39 EMPFLS I/O (GND)
40~43 NC I
44 CEFLS I/O (Vcc)
45~49 NC I
50 AFM O AF mute
51 SPM O Speaker mute
52 AMPSW O AF AMP switch
Pin No. Name I/O Function
53 DT O Common data
54 CK O Common clock
55 NC I
56 DST1 I Destination 1
57~59 DST2~DST4 I Destination 2~4
60 VCC - +5V
61 NC I
62 VSS - GND
63 ADJ I For adjustment mode
64 NARROW O Wide/Narrow 2
65 WIDE O Wide/Narow
66,67 NC I
68 LCDCL O Clock for LCD
69 LCDCE O Chip enable for LCD
70 LCDDO O Output data to LCD
71 LCDDI I Input data from LCD
72 NC I
73 ENCB I Encoder input B
74 ENCA I Encoder input A
75 TNC9600 O TNC speed H : 9600, L : 1200
76 TNC1200 O TNC speed L : 9600, H : 1200
77 MICMT O MIC mute
78 NC I NC
79 8RC O 8R control
80 8TC O 8T control
81 NC I
82 SBC O Battery switch
83~85 NC I
86 CM I/O MIC key check
87 I For AMR DTMF keypad MIC
88 I For AMR DTMF keypad MIC
89 VOL I Volume encoder
90 TEMP2 I Temperature 2
91 TEMP1 I Temperature 1
92 RSSI I RSSI input
93 SQIN I Squelch input
94 AVSS - GND
95 DTMF IN I CTCSS/DCS/Clone/1050Hz input
96 VREF - +5V
97 AVCC - +5V
98~100
NC I
Microprocessor : 30622MAA-B85GP (TX-RX Unit IC101)
TM-271A/271E
9
Display Unit (X54-3450-10)
Ref. No. Parts name Description
IC3 IC LCD controller
Q6 Transistor DC switch
Q9 Transistor LCD backlit switch
Q10 Transistor Key backlit switch
Q12 Transistor Brightness function switch
D2~4 LED Key backlit
D19~30 LED LCD backlit
D31 Diode Reverse connection protection
TX-RX Unit (X57-685X-XX)
Ref. No. Parts name Description
IC31 IC Voltage regulator (8C)
IC32 IC Voltage regulator (5C)
IC33 IC Voltage regulator (5M)
IC34 IC Voltage detector (reset)
IC35 IC Voltage detector (int)
IC66 IC EEPROM
IC101 IC CPU
IC161 IC Digital potentiometer
IC201 IC MIC amplifier / IDC
IC202 IC MIC amplifier / Splatter filter
IC203 IC Buffer amplifier / SUM amplifier
/ DC amplifier / 1/2 Vcc
IC204,205
IC Single analog switch
IC251 IC Audio filter
IC252 IC Audio amplifier
IC301 IC FM demodulation
IC401 IC PLL synthesizer
IC402 IC Divider (Hetero)
IC501 IC APC controller
Q31,32 Transistor
DC switch (SB) / Active when power is on
Q33,34 Transistor DC switch (8R) / Active while RX
Q35,36 Transistor DC switch (8T) / Active while TX
Q61 Transistor Over voltage detection / Active when
PS voltage is more than 18V
Q86,87 Transistor Beat shift / Active while beat shift is on
Q201 Transistor AGC / MIC mute
Q251 Transistor Buffer amplifier / RX audio
Q252,253
FET AF mute / Active while AFM is H
Q254
Digital transistor
AF mute / Active while SPM is H
Q255 Transistor AF mute / Active while AMPSW is H
Q301 Transistor Noise amplifier / SQL amplifier
Ref. No. Parts name Description
Q302 Transistor Buffer amplifier / 16.8MHz 3rd over tone
Q351 Transistor IF amplifier
Q352 FET Mixer
Q353 FET RF amplifier / LNA
Q354 Transistor PC/TV switch
Q402,403
Transistor Charge pump
Q404 Transistor RF amplifier / PLL F in
Q405 FET RX VCO
Q406 FET TX VCO
Q407 FET T/R switch
Q408 Transistor T/R switch
Q410 Transistor Buffer amplifier / Output of VCO
Q411 Transistor RF amplifier / Output of VCO
Q440 Transistor Lipple filter
Q501,502
Transistor RF amplifier / Drive stage
Q503 FET RF amplifier / Drive amplifier
Q504 FET RF amplifier / Final amplifier
D1 Diode Surge absorption / CM
D2 Diode Surge absorption / MIC key
D3 Diode Surge absorption / RXD
D4 Diode Surge absorption / PTT
D5 Diode Surge absorption / SQC
D6 Diode Surge absorption / PKS
D31 Diode Reverse connection protection
D32 Poly switch Current protection
D61,62 Diode Over voltage detection
D201 Diode OR gate / MIC mute, AGC
D202 Diode AGC
D251 Diode Limiter
D301 Diode Detection
D302,303
Diode IF switch (Wide/Narrow)
D351~354
Varicap RF BPF tuning
D401 Diode Ripple filter
D402 Diode Voltage dropped
D403,404
Varicap RX VCO
D405,406
Varicap TX VCO
D407 Varicap Modulation
D408 Diode Lipple filter
D409 Diode RF switch (TX/RX)
D501,502
Diode Temperature compensation
D503 Diode Voltage protection
D602,603
Diode ANT switch
D605 Diode ANT switch
D606,607
Diode APC voltage detect
D608 Diode Temperature compensation
COMPONENTS DESCRIPTION
TM-271A/271E
10
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
K,M2,M3,M4 : TM-271A
E: TM-271E
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
TM-271A/E
DISPLAY UNIT (X54-3450-10)
11B✽A01-2193-01 CABINET
23BA10-4048-21 CHASSIS
33A✽A62-1088-03 PANEL ASSY
51D✽B62-1738-10 INSTRUCTION MANUAL K,M2,M3
51D✽B62-1738-10 INSTRUCTION MANUAL E
51D✽B62-1739-10 INSTRUCTION MANUAL K,M2,E
51D✽B62-1745-10 INSTRUCTION MANUAL M3
51D✽B62-1746-10 INSTRUCTION MANUAL M4
51D✽B62-1784-10 INSTRUCTION MANUAL E
63B✽B72-2171-04 MODEL NAME PLATE K
63B✽B72-2172-04 MODEL NAME PLATE M2
63B✽B72-2173-04 MODEL NAME PLATE M3
63B✽B72-2174-04 MODEL NAME PLATE M4
63B✽B72-2175-04 MODEL NAME PLATE E
83BE04-0167-05 RF COAXIAL PECEPTACLE (M) K,M2,M3
83BE04-0167-05 RF COAXIAL PECEPTACLE (M) M4
93BE04-0170-05 RF COAXIAL RECEPTACLE (N) E
10 3C E30-2111-15 DC CORD ACCESSORY K,M2,M3
10 3C E30-2111-15 DC CORD ACCESSORY M4
11 3C ✽E30-3452-05 DC CORD ACCESSORY E
12 2B ✽E30-7501-05 TNC CABLE E
13 2B ✽E30-7512-05 DC CORD (RADIO) K,M2,M3
13 2B ✽E30-7512-05 DC CORD (RADIO) M4
14 2B ✽E30-7513-05 DC CORD (RADIO) E
15 3A E37-1082-05 SPEAKER WIRE
16 2A ✽E37-1097-05 FLAT CABLE
17 3C ✽F51-0024-05 FUSE (BLADE) (15A/32V) E
18 2B F10-2449-01 SHIELDING COVER
20 3C F51-0017-05 FUSE (6✽30) (15A) K,M2,M3
20 3C F51-0017-05 FUSE (6✽30) (15A) M4
23 2B G02-0894-04 EARTH SPRING (FINAL FET)
24 2A ✽G10-1324-04 FIBROUS SHEET (DISPLAY UNIT)
25 3B G11-4127-14 RUBBER SHEET (CHASSIS)
26 2B G11-4240-04 RUBBER SHEET (DRIVE FET)
27 3B G13-1468-04 CUSHION (CHASSIS) K,M2,M3
27 3B G13-1468-04 CUSHION (CHASSIS) M4
28 3A G53-1525-03 PACKING (PANEL)
29 2B G53-1542-03 PACKING (PHONE JACK)
30 1B G53-1544-01 PACKING (SHIELDING COVER)
31 1A G53-1548-02 GASKET
33 2C,1D H12-3112-05 PACKING FIXTURE
34 3D H13-1190-02 CARTON BOARD
36 1D H25-2341-04 PROTECTION BAG
37 2D ✽H52-1995-12 ITEM CARTON CASE K,M2
37 2D ✽H52-2027-02 ITEM CARTON CASE M3
37 2D ✽H52-2028-02 ITEM CARTON CASE M4
37 2D ✽H52-2029-12 ITEM CARTON CASE E
39 3C J19-1584-05 MIC HOLDER ACCESSORY
40 3D J29-0662-03 BRACKET ACCESSORY
42 3A ✽K29-9291-01 KEY TOP
43 3A ✽K29-9292-03 KNOB (VOLUME)
44 3A ✽K29-9293-03 KNOB (ENCODER)
A2BN67-2608-46 PAN HEAD SEMS SCREW
B2AN80-2010-45 PAN HEAD TAPTITE SCREW
C2B,3B N87-2606-46 BRAZIER HEAD TAPTITE SCREW
D1B,2B N87-2614-46 BRAZIER HEAD TAPTITE SCREW
46 3D N99-0395-05 SCREW SET ACCESSORY
48 3A T07-0739-05 SPEAKER
49 2C T91-0624-05 MICROPHONE ACCESSORY M2,M4
50 2C ✽T91-0641-05 MICROPHONE ACCESSORY K,M3,E
101 2A ✽B11-1809-03 ILLUMINATION GUIDE (LCD)
102 2A ✽B38-0885-05 LCD
D2-4 B30-2205-05 LED (YG)
D19-30 B30-2205-05 LED (YG)
C4 CC73GCH1H101J CHIP C 100PF J
C15,16 CC73GCH1H101J CHIP C 100PF J
C19 CK73GB1H681K CHIP C 680PF K
C22 CK73GB1H102K CHIP C 1000PF K
C24 CK73GB1C104K CHIP C 0.10UF K
C25 CK73GB1H102K CHIP C 1000PF K
C27 CK73GB1H102K CHIP C 1000PF K
C30 CK73GB1C104K CHIP C 0.10UF K
C31-33 CK73GB1H102K CHIP C 1000PF K
C34,35 CK73GB1H472K CHIP C 4700PF K
C36 CK73GB0J105K CHIP C 1.0UF K
C38 CK73GB1H471K CHIP C 470PF K
C39,40 CK73GB1C104K CHIP C 0.10UF K
103 2A ✽E29-1201-04 INTER CONNECTOR (LCD)
CN1 E40-6005-05 FLAT CABLE CONNECTOR
J1 E08-0877-05 MODULAR JACK
104 2A ✽J21-8463-03 HARDWARE FIXTURE (LCD)
L1 L92-0138-05 FERRITE CHIP
CP1 R90-0724-05 MULTI-COMP 1K X4
R8 RK73GB1J102J CHIP R 1.0K J 1/16W
R10 RK73GB1J122J CHIP R 1.2K J 1/16W
R21-23 RK73GB1J103J CHIP R 10K J 1/16W
R25 RK73GB1J563J CHIP R 56K J 1/16W
R26 RK73GB1J392J CHIP R 3.9K J 1/16W
R41 RK73FB2A560J CHIP R 56 J 1/10W
R42 RK73GB1J272J CHIP R 2.7K J 1/16W
R43 RK73GB1J821J CHIP R 820 J 1/16W
R44 RK73GB1J183J CHIP R 18K J 1/16W
R45 RK73GB1J333J CHIP R 33K J 1/16W
R46 RK73GB1J101J CHIP R 100 J 1/16W
R47,48 RK73GB1J473J CHIP R 47K J 1/16W
R49,50 RK73FB2A560J CHIP R 56 J 1/10W
R51-53 R92-1252-05 CHIP R 0 OHM J 1/16W
R54 RK73FB2A560J CHIP R 56 J 1/10W
DISPLAY UNIT (X54-3450-10)
TM-271A/E
TM-271A/271E
11
K,M2,M3,M4 : TM-271A
E: TM-271E
PARTS LIST
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
DISPLAY UNIT (X54-3450-10)
TX-RX UNIT (X57-685X-XX)
R55 R92-1252-05 CHIP R 0 OHM J 1/16W
VR1 ✽R31-0646-05 VARIABLE RESISTOR
D31 1SS355 DIODE
IC3 ✽LC75854W MOS IC
IC3 PT6554LQ MOS IC
Q6 KRC102S DIGITAL TRANSISTOR
Q9 2SB1132(Q,R) TRANSISTOR
Q10 KRA225S DIGITAL TRANSISTOR
Q12 UMG3N TRANSISTOR
S1 ✽W02-3665-05 ENCODER
C10 CK73GB1H102K CHIP C 1000PF K
C13-20 CK73GB1H471K CHIP C 470PF K
C28 CK73GB1H221K CHIP C 220PF K
C29 CK73GB1H471K CHIP C 470PF K
C30 CK73GB1H102K CHIP C 1000PF K
C33 CK73GB1H102K CHIP C 1000PF K
C34 ✽CE04EQ1E331M ELECTRO 330UF 25WV
C35-38 CK73GB1H102K CHIP C 1000PF K
C39,40 CK73GB1C104K CHIP C 0.10UF K
C41 C92-0795-05 CHIP-TAN 22UF 10WV
C42 CK73GB1H103K CHIP C 0.010UF K
C43-45 C92-0795-05 CHIP-TAN 22UF 10WV
C49,50 CK73GB1H103K CHIP C 0.010UF K
C51 C92-0589-05 CHIP-TAN 47UF 6.3WV
C52,53 CK73GB1H102K CHIP C 1000PF K
C54,55 CK73GB1C104K CHIP C 0.10UF K
C56 CK73GB1H102K CHIP C 1000PF K
C61 CK73GB1H102K CHIP C 1000PF K
C66 CK73GB1H102K CHIP C 1000PF K
C82 CK73GB1H102K CHIP C 1000PF K
C83 CK73GB1C104K CHIP C 0.10UF K
C87 CC73GCH1H030C CHIP C 3.0PF C
C88,89 CC73GCH1H040C CHIP C 4.0PF C
C90 CC73GCH1H030C CHIP C 3.0PF C
C97,98 CK73GB1H102K CHIP C 1000PF K
C101 CK73GB1H102K CHIP C 1000PF K
C102 CK73GB1C104K CHIP C 0.10UF K
C104 CK73GB1C104K CHIP C 0.10UF K
C128 CK73GB1H102K CHIP C 1000PF K
C151 CK73GB1H182K CHIP C 1800PF K
C152 CK73GB1H392K CHIP C 3900PF K
C161 CK73GB1H102K CHIP C 1000PF K
C162 C92-0507-05 CHIP-TAN 4.7UF 6.3WV
C163 CK73GB1H102K CHIP C 1000PF K
C164 C92-0560-05 CHIP-TAN 10UF 6.3WV
C165 CK73GB1A105K CHIP C 1.0UF K
C201 CK73GB1C104K CHIP C 0.10UF K
C202 CK73GB1H102K CHIP C 1000PF K
C203 CK73GB1C273K CHIP C 0.027UF K K,M2,M3
C203 CK73GB1C273K CHIP C 0.027UF K M4
C203 CK73GB1C473K CHIP C 0.047UF K E
C204 C92-0514-05 CHIP-TAN 2.2UF 10WV
C205 CK73GB1C104K CHIP C 0.10UF K
C206 CK73GB1H102K CHIP C 1000PF K K,M2,M3
C206 CK73GB1H102K CHIP C 1000PF K M4
C206 CK73GB1H681K CHIP C 680PF K E
C207 CK73GB1C223K CHIP C 0.022UF K K,M2,M3
C207 CK73GB1C223K CHIP C 0.022UF K M4
C207 CK73GB1C393K CHIP C 0.039UF K E
C208 CK73GB1H103K CHIP C 0.010UF K
C209 CC73GCH1H680J CHIP C 68PF J
C210 CK73GB1C104K CHIP C 0.10UF K
C211 CK73GB1H821K CHIP C 820PF K
C212 CK73GB1H122K CHIP C 1200PF K
C213 CK73GB1H332K CHIP C 3300PF K
C214 CC73GCH1H151J CHIP C 150PF J
C215 CK73GB1C104K CHIP C 0.10UF K
C216 CC73GCH1H390J CHIP C 39PF J
C217,218 C92-0560-05 CHIP-TAN 10UF 6.3WV
C220 C92-0507-05 CHIP-TAN 4.7UF 6.3WV
C222 CK73GB1C104K CHIP C 0.10UF K
C225 C92-0004-05 CHIP-TAN 1.0UF 16WV
C226 CK73GB1H472K CHIP C 4700PF K
C227 CK73GB1E103K CHIP C 0.010UF K
C228 C92-0560-05 CHIP-TAN 10UF 6.3WV
C230 CK73GB1C104K CHIP C 0.10UF K
C231,232 CK73GB1H102K CHIP C 1000PF K
C233 C92-0507-05 CHIP-TAN 4.7UF 6.3WV
C235 CK73GB1A105K CHIP C 1.0UF K
C249 C92-0507-05 CHIP-TAN 4.7UF 6.3WV
C250 CK73GB1C104K CHIP C 0.10UF K
C251 C92-0714-05 CHIP-TAN 4.7UF 6.3WV
C252 CC73GCH1H390J CHIP C 39PF J
C253,254 CK73GB1A224K CHIP C 0.22UF K
C255 CK73GB1H822K CHIP C 8200PF K
C256 CK73GB1E183K CHIP C 0.018UF K
C257 CK73GB1C393K CHIP C 0.039UF K
C258-261 CK73GB1H103J CHIP C 0.010UF J
C262 CK73GB1H102K CHIP C 1000PF K
C263,264 CK73GB1C333K CHIP C 0.033UF K
C265 CK73GB1C104K CHIP C 0.10UF K
C266 CK73GB1A105K CHIP C 1.0UF K
C267 CK73GB1A474K CHIP C 0.47UF K
C268 CK73GB1A105K CHIP C 1.0UF K
C270 C92-0507-05 CHIP-TAN 4.7UF 6.3WV
C271 CK73GB1H122K CHIP C 1200PF K
C272 CK73GB1H102K CHIP C 1000PF K
C273 CK73GB1A105K CHIP C 1.0UF K
C274 CK73FB1C224K CHIP C 0.22UF K
C275 CK73GB1A105K CHIP C 1.0UF K
C276,277 CK73GB1H102K CHIP C 1000PF K
C278 CK73GB1C104K CHIP C 0.10UF K
C279 C92-0516-05 CHIP-TAN 4.7UF 16WV
C280 C92-0040-05 CHIP-ELE 47UF 16WV
C281 CK73GB1H102K CHIP C 1000PF K
C282 ✽CE04EQ1E331M ELECTRO 330UF 25WV
C283 CK73GB1H102K CHIP C 1000PF K
C301 C92-0507-05 CHIP-TAN 4.7UF 6.3WV
C302 CK73GB1H102K CHIP C 1000PF K
C303 CK73GB1H472K CHIP C 4700PF K
C304,305 CC73GCH1H331J CHIP C 330PF J
C306 CK73GB1H102K CHIP C 1000PF K
C307 CK73GB1E223K CHIP C 0.022UF K
C308 CK73GB1H102K CHIP C 1000PF K
C309 CK73GB1E223K CHIP C 0.022UF K
TX-RX UNIT (X57-685X-XX)
0-10 : K 0-21 : M2 0-22 : M3 0-23 : M4 2-71 : E
TM-271A/271E
12
PARTS LIST
K,M2,M3,M4 : TM-271A
E: TM-271E
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
TX-RX UNIT (X57-685X-XX)
C310 CK73FB1C334K CHIP C 0.33UF K
C311,312 CK73GB1C104K CHIP C 0.10UF K
C313 C92-0662-05 CHIP-TAN 15UF 6.3WV
C314 CK73GB1H103K CHIP C 0.010UF K
C315-318 CK73GB1C104K CHIP C 0.10UF K
C319 CK73GB1H102K CHIP C 1000PF K
C321 CC73GCH1H680J CHIP C 68PF J
C322 CC73GCH1H560J CHIP C 56PF J
C323 CC73GCH1H271J CHIP C 270PF J
C324 CK73GB1H103K CHIP C 0.010UF K
C326 CK73GB1H103K CHIP C 0.010UF K
C350 CK73GB1H471K CHIP C 470PF K
C351 CC73GCH1H330J CHIP C 33PF J
C353 CK73GB1H103K CHIP C 0.010UF K
C354 CC73GCH1H4R5B CHIP C 4.5PF B
C355 CC73GCH1H180J CHIP C 18PF J
C356 CC73GCH1H030B CHIP C 3.0PF B
C357 CK73GB1H103K CHIP C 0.010UF K
C358 CK73GB1H102K CHIP C 1000PF K
C359 CC73GCH1H080B CHIP C 8.0PF B
C360-362 CK73GB1H102K CHIP C 1000PF K
C363 CK73GB1H103K CHIP C 0.010UF K
C364 CK73GB1H102K CHIP C 1000PF K
C366 CK73GB1C104K CHIP C 0.10UF K
C367 CC73GCH1H151J CHIP C 150PF J
C368 CC73GCH1H270J CHIP C 27PF J
C369 CC73GCH1H030B CHIP C 3.0PF B
C370 CK73GB1H102K CHIP C 1000PF K
C371 CC73GCH1H020B CHIP C 2.0PF B
C372 CK73GB1H102K CHIP C 1000PF K
C373 CC73GCH1H060B CHIP C 6.0PF B
C374 CC73GCH1H270J CHIP C 27PF J
C375-379 CK73GB1H102K CHIP C 1000PF K
C380 CC73GCH1H101J CHIP C 100PF J
C381 CC73GCH1H4R5B CHIP C 4.5PF B
C382 CC73GCH1H270J CHIP C 27PF J
C383 CK73GB1H102K CHIP C 1000PF K
C384 CC73GCH1H020B CHIP C 2.0PF B
C385 CC73GCH1H080B CHIP C 8.0PF B
C386 CC73GCH1H360J CHIP C 36PF J
C387 CK73GB1H102K CHIP C 1000PF K
C388 CC73GCH1H070B CHIP C 7.0PF B
C389 CK73GB1H102K CHIP C 1000PF K
C390 CC73GCH1H090B CHIP C 9.0PF B
C391 CC73GCH1H160G CHIP C 16PF G
C400 CK73GB1C104K CHIP C 0.10UF K
C401-403 CC73GCH1H101J CHIP C 100PF J
C404 C92-0662-05 CHIP-TAN 15UF 6.3WV
C406 CK73GB1H102K CHIP C 1000PF K
C408 CC73GCH1H220J CHIP C 22PF J
C409 CK73GB1C104K CHIP C 0.10UF K
C410 C92-0560-05 CHIP-TAN 10UF 6.3WV
C411 CK73GB1C104K CHIP C 0.10UF K
C412 C92-0560-05 CHIP-TAN 10UF 6.3WV
C413 CK73GB1H103K CHIP C 0.010UF K
C414 CK73GB1C104K CHIP C 0.10UF K
C416-418 CK73GB1H102K CHIP C 1000PF K
C421,422 CK73GB1H471K CHIP C 470PF K
C423 C92-0555-05 CHIP-TAN 0.047UF 35WV
C424 C92-0004-05 CHIP-TAN 1.0UF 16WV
C425 C92-0001-05 CHIP C 0.1UF 35WV
C426 CC73GCH1H300J CHIP C 30PF J
C427 CC73GCH1H080B CHIP C 8.0PF B
C428 CK73GB1H471K CHIP C 470PF K
C429 CC73GCH1H010B CHIP C 1.0PF B
C430 CC73GCH1H4R5B CHIP C 4.5PF B
C431 CC73GCH1H050B CHIP C 5.0PF B
C432 CC73GCH1H0R3B CHIP C 0.3PF B
C434 CC73GCH1H151J CHIP C 150PF J
C435 CC73GCH1H100C CHIP C 10PF C
C436 CC73GCH1HR75B CHIP C 0.75PF B
C437 CK73GB1H471K CHIP C 470PF K
C438 CC73GCH1H0R5B CHIP C 0.5PF B
C439 CC73GCH1H100C CHIP C 10PF C
C440 CC73GCH1H110G CHIP C 11PF G
C441 CC73GCH1H0R5B CHIP C 0.5PF B
C442 C92-0560-05 CHIP-TAN 10UF 6.3WV
C444 CK73GB1H471K CHIP C 470PF K
C448,449 CK73GB1H471K CHIP C 470PF K
C450 C92-0795-05 CHIP-TAN 22UF 10WV
C451,452 CK73GB1H471K CHIP C 470PF K
C453 CK73GB1H221K CHIP C 220PF K
C454 CC73GCH1H060B CHIP C 6.0PF B
C455 CC73GCH1H030B CHIP C 3.0PF B
C456 CC73GCH1H020B CHIP C 2.0PF B
C457 CK73GB1H102K CHIP C 1000PF K
C458 CK73GB1H221K CHIP C 220PF K
C459 CK73GB1H102K CHIP C 1000PF K
C460 CC73GCH1H180J CHIP C 18PF J
C461 CK73GB1H102K CHIP C 1000PF K
C462 CC73GCH1H100C CHIP C 10PF C
C463,464 CK73GB1H102K CHIP C 1000PF K
C465 CC73GCH1H220J CHIP C 22PF J
C466 CC73GCH1H101J CHIP C 100PF J
C467 CK73GB1H102K CHIP C 1000PF K
C468 CK73GB1H221K CHIP C 220PF K
C471 CC73GCH1H100C CHIP C 10PF C
C473-476 CK73GB1H102K CHIP C 1000PF K
C501,502 CK73GB1H102K CHIP C 1000PF K
C503 CC73GCH1H101J CHIP C 100PF J
C504-507 CK73GB1H102K CHIP C 1000PF K
C509 CC73GCH1H150J CHIP C 15PF J
C510 CC73GCH1H080B CHIP C 8.0PF B
C511-514 CK73GB1H102K CHIP C 1000PF K
C515 CC73GCH1H270J CHIP C 27PF J
C516 CK73GB1H821K CHIP C 820PF K
C517 CC73GCH1H030B CHIP C 3.0PF B
C518 CC73GCH1H330J CHIP C 33PF J
C519 CC73GCH1H820J CHIP C 82PF J
C522 CK73FB1H102K CHIP C 1000PF K
C525 CK73GB1H102K CHIP C 1000PF K
C526 CK73GB1H681K CHIP C 680PF K
C527 CK73GB1H102K CHIP C 1000PF K
C528 CK73GB1H221K CHIP C 220PF K
C529 CK73FB1H102K CHIP C 1000PF K
C530 CK73FB1C474K CHIP C 0.47UF K
C531 C92-0719-05 CHIP-TAN 47UF 25WV
C533 C93-0572-05 CHIP C 100PF J
C536 CK73FB1H102K CHIP C 1000PF K
C541,542 CM73F2H120J CHIP C 12PF J
TM-271A/271E
13
K,M2,M3,M4 : TM-271A
E: TM-271E
PARTS LIST
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
TX-RX UNIT (X57-685X-XX)
C543,544 CM73F2H150J CHIP C 15PF J
C545 C93-0603-05 CHIP C 1000PF K
C546 CK73FB1C474K CHIP C 0.47UF K
C549 CM73F2H221J CHIP C 220PF J
C550 CM73F2H680J CHIP C 68PF J
C552 C93-0564-05 CHIP C 22PF J
C553 C93-0553-05 CHIP C 3.0PF C
C554 C93-0603-05 CHIP C 1000PF K
C555 C93-0555-05 CHIP C 5.0PF C
C556 C93-0603-05 CHIP C 1000PF K
C557,558 CK73GB1H103K CHIP C 0.010UF K
C559 CK73GB1C104K CHIP C 0.10UF K
C560 CK73GB1H102K CHIP C 1000PF K
C574 CK73GB1H102K CHIP C 1000PF K
C576 CK73GB1H221K CHIP C 220PF K
C602 C93-0561-05 CHIP C 12PF J
C603 C93-0603-05 CHIP C 1000PF K
C605 C93-0562-05 CHIP C 15PF J
C606 CC73GCH1H0R5B CHIP C 0.5PF B
C607 CC73GCH1H020B CHIP C 2.0PF B
C608 C93-0565-05 CHIP C 27PF J
C610 CC73GCH1H0R5B CHIP C 0.5PF B
C611 CC73GCH1H020B CHIP C 2.0PF B
C613 C93-0565-05 CHIP C 27PF J
C614 C93-0553-05 CHIP C 3.0PF C E
C615 C93-0564-05 CHIP C 22PF J
C616,617 CK73GB1H102K CHIP C 1000PF K
C623 C93-0553-05 CHIP C 3.0PF C
TC401 C05-0399-05 CERAMIC TRIMMER (6PF)
TC402 C05-0245-05 CERAMIC TRIMMER (10PF)
-E11-0425-05 3.5D PHONE JACK (3P)
-E37-1127-05 PROCESSED LEAD WIRE
CN1 E40-6268-05 FLAT CABLE CONNECTOR
CN2 E40-5705-05 PIN ASSY
CN5 E40-3246-05 PIN ASSY
F1 F53-0246-05 FUSE (4.0A/32V)
F501 F53-0108-05 FUSE (1.8A/50V)
CF301 L72-0993-05 CERAMIC FILTER
CF302 L72-0999-05 CERAMIC FILTER
L101 L92-0443-05 FERRITE CHIP
L201 L92-0443-05 FERRITE CHIP
L301 L34-4554-05 COIL
L302 L41-3385-08 SMALL FIXED INDUCTOR
L303,304 L40-3381-86 SMALL FIXED INDUCTOR (0.33UH)
L351 L41-8285-08 SMALL FIXED INDUCTOR
L352 L41-5685-08 SMALL FIXED INDUCTOR
L354-356 L34-4612-05 AIR-CORE COIL
L357 L34-4610-05 AIR-CORE COIL
L401 L92-0443-05 FERRITE CHIP
L403 L41-1005-08 SMALL FIXED INDUCTOR
L404 L92-0442-05 FERRITE CHIP
L405 L92-0443-05 FERRITE CHIP
L406,407 L40-2785-92 SMALL FIXED INDUCTOR (270NH)
L408 L40-3378-67 SMALL FIXED INDUCTOR (33NH)
L409,410 L40-2702-86 SMALL FIXED INDUCTOR (27UH)
L411,412 L40-2785-92 SMALL FIXED INDUCTOR (270NH)
L413 L40-4778-67 SMALL FIXED INDUCTOR (47NH)
L414,415 L40-2702-86 SMALL FIXED INDUCTOR (27UH)
L416,417 L92-0443-05 FERRITE CHIP
L418 L41-3375-06 SMALL FIXED INDUCTOR
L419 L41-1085-06 SMALL FIXED INDUCTOR
L420 L41-1585-06 SMALL FIXED INDUCTOR
L421 L41-1085-06 SMALL FIXED INDUCTOR
L422 L40-5675-92 SMALL FIXED INDUCTOR (56NH)
L423 L92-0443-05 FERRITE CHIP
L501,502 L41-6875-08 SMALL FIXED INDUCTOR
L503,504 L41-2775-06 SMALL FIXED INDUCTOR
L505 L34-4645-05 AIR-CORE COIL
L506 L34-4693-05 AIR-CORE COIL
L507 L34-4732-05 AIR-CORE COIL
L508 L34-4669-05 AIR-CORE COIL
L509 L34-4667-05 AIR-CORE COIL
L601 ✽L34-4737-05 AIR-CORE COIL
L602-604 ✽L34-4736-05 AIR-CORE COIL
L605 L34-4667-05 AIR-CORE COIL
X86 ✽L78-1409-05 RESONATOR (8.00MHZ)
X401 ✽L77-1944-05 TCXO (16.8MHZ)
XF351 L71-0620-05 MCF (49.95MHZ)
R1 R92-1252-05 CHIP R 0 OHM J 1/16W
R2,3 RK73GB1J101J CHIP R 100 J 1/16W
R4-8 RK73GB1J102J CHIP R 1.0K J 1/16W
R31 RK73GB1J472J CHIP R 4.7K J 1/16W
R32 R92-1215-05 CHIP R 470 J 1/2W
R33 RK73GB1J473J CHIP R 47K J 1/16W
R34 RK73GB1J472J CHIP R 4.7K J 1/16W
R35 RK73GB1J473J CHIP R 47K J 1/16W
R36 RK73GB1J152J CHIP R 1.5K J 1/16W
R37 R92-1252-05 CHIP R 0 OHM J 1/16W
R38 RK73GB1J334J CHIP R 330K J 1/16W
R39 RK73GB1J474J CHIP R 470K J 1/16W
R40 RK73GB1J394J CHIP R 390K J 1/16W
R41 RK73GB1J334J CHIP R 330K J 1/16W
R61 RK73GB1J471J CHIP R 470 J 1/16W
R62,63 R92-1252-05 CHIP R 0 OHM J 1/16W
R70 RK73GB1J473J CHIP R 47K J 1/16W
R81 RK73GB1J473J CHIP R 47K J 1/16W
R82 R92-1252-05 CHIP R 0 OHM J 1/16W
R86 R92-1252-05 CHIP R 0 OHM J 1/16W
R87 RK73GB1J102J CHIP R 1.0K J 1/16W
R91,92 RK73GB1J102J CHIP R 1.0K J 1/16W
R93 RK73GB1J682J CHIP R 6.8K J 1/16W
R94 RK73GB1J103J CHIP R 10K J 1/16W
R101,102 RK73GB1J473J CHIP R 47K J 1/16W
R103-106 RK73GB1J102J CHIP R 1.0K J 1/16W
R109 RK73GB1J152J CHIP R 1.5K J 1/16W
R110 RK73GB1J473J CHIP R 47K J 1/16W
R111 RK73GB1J102J CHIP R 1.0K J 1/16W
R114 RK73GB1J473J CHIP R 47K J 1/16W
R118 R92-1252-05 CHIP R 0 OHM J 1/16W
R119 R92-0670-05 CHIP R 0 OHM K,M3,M4
R119 R92-0670-05 CHIP R 0 OHM E
R120 R92-1252-05 CHIP R 0 OHM J 1/16W M4
R120-123 R92-1252-05 CHIP R 0 OHM J 1/16W K
R121-123 R92-1252-05 CHIP R 0 OHM J 1/16W E
R122,123 R92-1252-05 CHIP R 0 OHM J 1/16W M2,M3,M4
R124-127 RK73GB1J473J CHIP R 47K J 1/16W
R151 RK73GB1J103J CHIP R 10K J 1/16W
R152 RK73GB1J472J CHIP R 4.7K J 1/16W
TM-271A/271E
14
PARTS LIST
K,M2,M3,M4 : TM-271A
E: TM-271E
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
TX-RX UNIT (X57-685X-XX)
R161 RK73GB1J122J CHIP R 1.2K J 1/16W
R162 RK73GB1J152J CHIP R 1.5K J 1/16W
R164-166 RK73GB1J102J CHIP R 1.0K J 1/16W
R200 RK73GB1J681J CHIP R 680 J 1/16W
R203 RK73GB1J104J CHIP R 100K J 1/16W
R204 RK73GB1J103J CHIP R 10K J 1/16W E
R204 RK73GB1J183J CHIP R 18K J 1/16W K,M2,M3
R204 RK73GB1J183J CHIP R 18K J 1/16W M4
R205 RK73GB1J821J CHIP R 820 J 1/16W
R206 RK73GB1J101J CHIP R 100 J 1/16W
R207 RK73GB1J105J CHIP R 1.0M J 1/16W E
R207 RK73GB1J754J CHIP R 750K J 1/16W K,M2,M3
R207 RK73GB1J754J CHIP R 750K J 1/16W M4
R208 RK73GB1J152J CHIP R 1.5K J 1/16W
R209 RK73GB1J244J CHIP R 240K J 1/16W
R210 RK73GB1J183J CHIP R 18K J 1/16W
R211,212 RK73GB1J823J CHIP R 82K J 1/16W
R213 RK73GB1J334J CHIP R 330K J 1/16W
R214,215 RK73GB1J683J CHIP R 68K J 1/16W
R216 RK73GB1J274J CHIP R 270K J 1/16W
R217 RK73GB1J224J CHIP R 220K J 1/16W
R218 RK73GB1J823J CHIP R 82K J 1/16W
R219 RK73GB1J124J CHIP R 120K J 1/16W
R220,221 RK73GH1J153D CHIP R 15K D 1/16W
R222 RK73GB1J103J CHIP R 10K J 1/16W
R224 RK73GB1J561J CHIP R 560 J 1/16W
R225 RK73GB1J154J CHIP R 150K J 1/16W
R226 RK73GB1J104J CHIP R 100K J 1/16W
R227 RK73GB1J223J CHIP R 22K J 1/16W
R228 RK73GB1J103J CHIP R 10K J 1/16W
R229 RK73GB1J684J CHIP R 680K J 1/16W
R230 RK73GB1J224J CHIP R 220K J 1/16W
R231 RK73GB1J124J CHIP R 120K J 1/16W
R232 RK73GB1J912J CHIP R 9.1K J 1/16W
R233 RK73GB1J682J CHIP R 6.8K J 1/16W
R234 R92-1252-05 CHIP R 0 OHM J 1/16W
R236 RK73GB1J103J CHIP R 10K J 1/16W
R237 R92-1252-05 CHIP R 0 OHM J 1/16W
R246 RK73GB1J154J CHIP R 150K J 1/16W
R247 RK73GB1J124J CHIP R 120K J 1/16W
R248 RK73GB1J562J CHIP R 5.6K J 1/16W
R249 RK73GB1J153J CHIP R 15K J 1/16W
R250 RK73GB1J123J CHIP R 12K J 1/16W
R251 RK73GB1J473J CHIP R 47K J 1/16W
R252 RK73GB1J474J CHIP R 470K J 1/16W
R253 R92-1252-05 CHIP R 0 OHM J 1/16W
R254 RK73GB1J272J CHIP R 2.7K J 1/16W
R255,256 RK73GB1J562J CHIP R 5.6K J 1/16W
R257 RK73GB1J105J CHIP R 1.0M J 1/16W
R258 RK73GB1J272J CHIP R 2.7K J 1/16W
R259 RK73GB1J123J CHIP R 12K J 1/16W
R260 RK73GB1J224J CHIP R 220K J 1/16W
R261 RK73GB1J124J CHIP R 120K J 1/16W
R262 RK73GB1J183J CHIP R 18K J 1/16W
R263 RK73GH1J913D CHIP R 91K D 1/16W
R264 RK73GH1J124D CHIP R 120K D 1/16W
R265 RK73GH1J562D CHIP R 5.6K D 1/16W
R266 RK73GB1J562J CHIP R 5.6K J 1/16W
R268 RK73GB1J102J CHIP R 1.0K J 1/16W
R269 RK73GB1J393J CHIP R 39K J 1/16W
R271 RK73GB1J332J CHIP R 3.3K J 1/16W
R272 RK73GB1J392J CHIP R 3.9K J 1/16W
R273 RK73GB1J123J CHIP R 12K J 1/16W
R274,275 RK73GB1J153J CHIP R 15K J 1/16W
R276 RK73GB1J473J CHIP R 47K J 1/16W
R277 RK73GB1J683J CHIP R 68K J 1/16W
R278 RK73GB1J123J CHIP R 12K J 1/16W
R279 RK73GB1J472J CHIP R 4.7K J 1/16W
R280 RK73GB1J391J CHIP R 390 J 1/16W
R281 R92-0670-05 CHIP R 0 OHM
R301,302 RK73GB1J472J CHIP R 4.7K J 1/16W
R303 RK73GB1J223J CHIP R 22K J 1/16W
R304 RK73GB1J472J CHIP R 4.7K J 1/16W
R305 RK73GB1J182J CHIP R 1.8K J 1/16W
R306 RK73GB1J274J CHIP R 270K J 1/16W
R308 RK73GB1J334J CHIP R 330K J 1/16W
R309 RK73GB1J332J CHIP R 3.3K J 1/16W
R310 RK73GB1J102J CHIP R 1.0K J 1/16W
R311 RK73GB1J333J CHIP R 33K J 1/16W
R312 RK73GB1J473J CHIP R 47K J 1/16W
R313 RK73GB1J104J CHIP R 100K J 1/16W
R314 RK73GB1J222J CHIP R 2.2K J 1/16W
R315 RK73GB1J183J CHIP R 18K J 1/16W
R316 RK73GB1J223J CHIP R 22K J 1/16W
R317-320 RK73GB1J103J CHIP R 10K J 1/16W
R321 RK73GB1J223J CHIP R 22K J 1/16W
R322 RK73GB1J101J CHIP R 100 J 1/16W
R323 RK73GB1J124J CHIP R 120K J 1/16W
R324 R92-1252-05 CHIP R 0 OHM J 1/16W
R325 RK73GB1J333J CHIP R 33K J 1/16W
R349 RK73GB1J473J CHIP R 47K J 1/16W
R350 RK73GB1J273J CHIP R 27K J 1/16W
R351 RK73GB1J471J CHIP R 470 J 1/16W
R352 RK73GB1J101J CHIP R 100 J 1/16W
R353 RK73GB1J104J CHIP R 100K J 1/16W
R354 RK73GB1J331J CHIP R 330 J 1/16W
R355 RK73GB1J471J CHIP R 470 J 1/16W
R356 RK73GB1J102J CHIP R 1.0K J 1/16W
R358 RK73GB1J221J CHIP R 220 J 1/16W
R359 RK73GB1J224J CHIP R 220K J 1/16W
R360 RK73GB1J474J CHIP R 470K J 1/16W
R361 RK73GB1J181J CHIP R 180 J 1/16W
R362 RK73GB1J474J CHIP R 470K J 1/16W
R363 RK73GB1J334J CHIP R 330K J 1/16W
R364 R92-1252-05 CHIP R 0 OHM J 1/16W
R365 RK73GB1J104J CHIP R 100K J 1/16W
R366 RK73GB1J471J CHIP R 470 J 1/16W
R367 RK73GB1J101J CHIP R 100 J 1/16W
R368 RK73GB1J104J CHIP R 100K J 1/16W
R369 R92-1252-05 CHIP R 0 OHM J 1/16W
R370 RK73GB1J560J CHIP R 56 J 1/16W
R371 RK73GB1J393J CHIP R 39K J 1/16W
R372,373 RK73GB1J473J CHIP R 47K J 1/16W
R374 RK73GB1J273J CHIP R 27K J 1/16W
R375,376 RK73GB1J104J CHIP R 100K J 1/16W
R379 RK73GB1J104J CHIP R 100K J 1/16W
R401-403 RK73GB1J102J CHIP R 1.0K J 1/16W
R404 RK73GB1J103J CHIP R 10K J 1/16W
R406 RK73GB1J103J CHIP R 10K J 1/16W
R407 RK73GB1J152J CHIP R 1.5K J 1/16W
TM-271A/271E
15
K,M2,M3,M4 : TM-271A
E: TM-271E
PARTS LIST
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
TX-RX UNIT (X57-685X-XX)
R408 RK73GB1J100J CHIP R 10 J 1/16W
R409 RK73GB1J104J CHIP R 100K J 1/16W
R410 RK73GB1J822J CHIP R 8.2K J 1/16W
R411 RK73GB1J562J CHIP R 5.6K J 1/16W
R412,413 RK73GB1J103J CHIP R 10K J 1/16W
R414 RK73GB1J471J CHIP R 470 J 1/16W
R415 R92-1252-05 CHIP R 0 OHM J 1/16W
R416 RK73GB1J471J CHIP R 470 J 1/16W
R417 RK73GB1J224J CHIP R 220K J 1/16W
R418 RK73GB1J102J CHIP R 1.0K J 1/16W
R419 RK73GB1J272J CHIP R 2.7K J 1/16W
R420 RK73GB1J102J CHIP R 1.0K J 1/16W
R421 RK73GB1J152J CHIP R 1.5K J 1/16W
R422 RK73GB1J103J CHIP R 10K J 1/16W
R423 RK73GB1J221J CHIP R 220 J 1/16W
R424 RK73GB1J101J CHIP R 100 J 1/16W
R425,426 RK73GB1J473J CHIP R 47K J 1/16W
R427 RK73GB1J104J CHIP R 100K J 1/16W
R428 RK73GB1J473J CHIP R 47K J 1/16W
R429 RK73GB1J271J CHIP R 270 J 1/16W
R430 RK73GB1J221J CHIP R 220 J 1/16W
R431 RK73GB1J104J CHIP R 100K J 1/16W
R432 RK73GB1J102J CHIP R 1.0K J 1/16W
R433 RK73GB1J472J CHIP R 4.7K J 1/16W
R434 R92-1252-05 CHIP R 0 OHM J 1/16W
R435 RK73GB1J101J CHIP R 100 J 1/16W
R436 RK73GB1J124J CHIP R 120K J 1/16W
R437 RK73GB1J102J CHIP R 1.0K J 1/16W
R438 RK73GB1J223J CHIP R 22K J 1/16W
R439 RK73GB1J473J CHIP R 47K J 1/16W
R440-442 RK73GB1J101J CHIP R 100 J 1/16W
R443 RK73GB1J222J CHIP R 2.2K J 1/16W
R444 RK73GB1J102J CHIP R 1.0K J 1/16W
R501 RK73GB1J102J CHIP R 1.0K J 1/16W
R502 RK73GB1J271J CHIP R 270 J 1/16W
R503 RK73GB1J180J CHIP R 18 J 1/16W
R504 RK73GB1J271J CHIP R 270 J 1/16W
R505 RK73GB1J222J CHIP R 2.2K J 1/16W
R506 RK73GB1J103J CHIP R 10K J 1/16W
R507 RK73GB1J100J CHIP R 10 J 1/16W
R509 RK73GB1J220J CHIP R 22 J 1/16W
R510 RK73GB1J152J CHIP R 1.5K J 1/16W
R511 RK73FB2A470J CHIP R 47 J 1/10W
R512 RK73FB2A100J CHIP R 10 J 1/10W
R513 RK73FB2A222J CHIP R 2.2K J 1/10W
R514 R92-1217-05 CHIP R 0 OHM
R516 R92-0670-05 CHIP R 0 OHM
R518 RK73EB2B330J CHIP R 33 J 1/8W
R519 RK73GB1J333J CHIP R 33K J 1/16W
R520 RK73GB1J183J CHIP R 18K J 1/16W
R521 RK73GB1J101J CHIP R 100 J 1/16W
R522 RK73EB2B331J CHIP R 330 J 1/8W
R523 RK73GB1J393J CHIP R 39K J 1/16W
R524 R92-1215-05 CHIP R 470 J 1/2W
R525 RK73GB1J563J CHIP R 56K J 1/16W
R526 R92-1261-05 CHIP R 150 J 1/2W
R527 RK73GB1J224J CHIP R 220K J 1/16W
R528,529 RK73GB1J471J CHIP R 470 J 1/16W
R530 RK73GB1J102J CHIP R 1.0K J 1/16W
R531 RK73GB1J473J CHIP R 47K J 1/16W
R532,533 R92-1252-05 CHIP R 0 OHM J 1/16W
R601,602 RK73GB1J223J CHIP R 22K J 1/16W
R605 RK73GB1J153J CHIP R 15K J 1/16W
R606 RK73GB1J221J CHIP R 220 J 1/16W
R607 RK73GB1J331J CHIP R 330 J 1/16W
R800 R92-1061-05 JUMPER
VR601 R12-6427-05 TRIMMING POT. (47K/12)
D1-6 DA221 DIODE
D31 ZSH5MA27 SURGE ABSORBER
D32 1812L110PR VARISTOR
D61 02DZ18(X,Y) ZENER DIODE
D62 MA2S077 DIODE
D201 DAN222 DIODE
D202 1SS372 DIODE
D251 MA742 DIODE
D301 MA742 DIODE
D302,303 DAN222 DIODE
D351-354 HVC376B VARIABLE CAPACITANCE DIODE
D401 MA2S111 DIODE
D402 HZU5ALL DIODE
D403-406 MA2S304 VARIABLE CAPACITANCE DIODE
D407 1SV278 VARIABLE CAPACITANCE DIODE
D408 MA2S111 DIODE
D409 DAN235E DIODE
D501 1SS355 DIODE
D502 DA221 DIODE
D503 02DZ5.1(Y) ZENER DIODE
D602 MA4PH633 DIODE
D603 XB15A709 DIODE
D605 XB15A709 DIODE
D606,607 MA742 DIODE
D608 1SS355 DIODE
IC31 KIA7808AF ANALOG IC
IC32,33 NJM78L05UA BI-POLAR IC
IC34 ✽BD4732G MOS IC
IC35 BD4740G MOS IC
IC66 AT24C64A10SI18 ROM IC
IC66 ✽CAT24WC64JI ROM IC
IC101 ✽30622MAA-B85GP MPU
IC161 M62363FP MOS IC
IC201 NJM2100V MOS IC
IC202 ✽BA10358FV MOS IC
IC203 ✽BA10324AFV MOS IC
IC204,205 BU4S66 MOS IC
IC251 ✽BA10324AFV MOS IC
IC252 2B LA4600 BI-POLAR IC
IC301 TK14489V BI-POLAR IC
IC401 MB15A02 MOS IC
IC402 UPB1509GV BI-POLAR IC
IC501 TA75W01FU MOS IC
Q31 2SA1641(S,T) TRANSISTOR
Q32 KRC102S DIGITAL TRANSISTOR
Q33 2SA1745(6,7) TRANSISTOR
Q34 KRC102S DIGITAL TRANSISTOR
Q35 KTA1664(Y) TRANSISTOR
Q36 KRC102S DIGITAL TRANSISTOR
Q61 KRC404RTK DIGITAL TRANSISTOR
Q86,87 2SK1830 FET
Q201 2SC4919 TRANSISTOR
TM-271A/271E
16
PARTS LIST
K,M2,M3,M4 : TM-271A
E: TM-271E
Q251 2SC2412K TRANSISTOR
Q252,253 2SK3019 FET
Q254 DTC363EU DIGITAL TRANSISTOR
Q255 KRC102S DIGITAL TRANSISTOR
Q301,302 2SC2412K TRANSISTOR
Q351 ✽2SC5488 TRANSISTOR
Q352,353 3SK318 FET
Q354 2SK1830 FET
Q402 2SA1832(GR) TRANSISTOR
Q403 2SC4738(GR) TRANSISTOR
Q404 2SC4649(N,P) TRANSISTOR
Q405,406 2SK508NV(K52) FET
Q407 2SJ347 FET
Q408 KRX102U TRANSISTOR
Q410 2SC5108(Y) TRANSISTOR
Q411 2SC4649(N,P) TRANSISTOR
Q440 2SC2412K TRANSISTOR
Q501,502 2SC3357 TRANSISTOR
Q503 PD55003TR DRIVE FET
Q504 2B RD70HVF1-01 FINAL FET
TH97,98 ✽NCP18WF104J03 THERMISTOR
TH301 ✽NCP18WF104J03 THERMISTOR
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
Ref. No.
Address
Parts No. Description Desti-
nation
New
parts
TX-RX UNIT (X57-685X-XX)
TM-271A/271E
17
EXPLODED VIEW
Parts with the exploded numbers larger than 700 are not supplied.
3
2
1
BA
1
30
31
18
2
3
Dx8
12
13,14
29
Ax2
ACx12 26 23
13
14
IC252
Q504
25 27
9
8Cx2
Cx2
6
701
S/No. label
702
Standard label
: K
700
Caution label
703
Sticker : M3
28
44
43
48
15
42
24
24
Bx2
16
103
101
104
102
TX-RX unit
Display unit
A M2.6 x 8 : N67-2608-46
B M2 x 10 BLK : N80-2010-45
C M2.6 x 6 (Br-Tap) : N87-2606-46
D M2.6 x 14 (Br-Tap) : N87-2614-46
TM-271A/271E
18
PACKING
Parts with the exploded numbers larger than 700 are not supplied.
3
2
1
DC
17 Fuse (Blade, 15A/32V)
(F51-0024-05) : E
5 Instruction manual
(B62-1738-10) : K,M2,M3,E
(B62-1739-10) : K,M2,E
(B62-1745-10) : M3
(B62-1746-10) : M4
(B62-1784-10) : E
10 DC cord
(E30-2111-15) : K,M2,M3,M4
46 Screw set
(N99-0395-05)
49 Microphone
(T91-0624-05) : M2,M4
704 Pamphlet
705 Warranty card
36 Protection bag
(H25-2341-04)
36 Protection bag
(H25-2341-04)
33 Packing fixture
(H12-3112-05)
33 Packing fixture
(H12-3112-05)
34 Carton board
(H13-1190-02)
40 Bracket
(J29-0662-03)
39 MIC holder
(J19-1584-05)
37 Item carton case
(H52-1995-12) : K,M2
(H52-2027-02) : M3
(H52-2028-02) : M4
(H52-2029-12) : E
50 Microphone
(T91-0641-05) : K,M3,E
11 DC cord
(E30-3452-05) : E
20 Fuse (6x30, 15A)
(F51-0017-05) : K,M2,M3,M4
TM-271A/271E
19
Resetting the Tansceiver
If your transceiver seems to be malfunctioning, resetting
the microprocessor may solve the problem. The following 2
reset modes are available. When performing the reset, you
may lose memory data and stored information. Back up or
write down important data before performing the reset.
■ Initial Settings
The factory defaults for the operating frequencies are as
follows.
Transceiver : 144.000MHz
The Memory Channels have no data stored. The Weather
Radio frequency (AL channel) is restored as 162.550MHz (K
market model only). The Call Channel and frequency step
size default values.
Note : When in Channel Display Mode or while Key Lock is
activated, you cannot perform VFO reset or Full reset.
■ Full Reset
This resets all transceiver parameters to the factory de-
fault values. There are two methods available for resetting
the transceiver.
• Full Reset Method 1:
1. With the transceiver power OFF, press [F]+[ ] (Power).
• All indicators light momentarily, followed by the full reset
confirmation message.
■ VFO Reset
This resets the transceiver parameters excluding the
DTMF Memory, the Memory channel contents, and the Call
channel contents. There are two methods available for reset-
ting the transceiver.
Note : Menu No. 7 (P.VFO) and Menu No. 10 (OFFSET) re-
turn to the factory default values.
• VFO Reset Method 1:
1. With the transceiver power OFF, press [VFO]+[ ]
(Power).
• The VFO reset confirmation message appears.
2. Press [F].
• “SURE ?” appears.
• Press any key other than [F] to cancel.
3. Press [F] again to reset the transceiver.
• “WAIT” appears momentarily.
• Full Reset Method 2:
1. Press [F], [MENU] and turn the Tuning control to select
Menu No. 99 (RESET).
2. Press [MENU] and turn the Tuning control to select
“FULL”.
3. Press [MENU].
• “SURE ?” appears.
• Press any key other than [MENU] to cancel.
4. Press [MENU] to reset the transceiver.
• “WAIT” appears momentarily.
2. Press [VFO].
• “SURE ?” appears.
• Press any key other than [VFO] to cancel.
3. Press [VFO] again to reset the transceiver.
• “WAIT” appears momentarily.
• VFO Reset Method 2:
1. Press [F], [MENU] and turn the Tuning control to select
Menu No. 99 (RESET).
2. Press [MENU] and turn the Tuning control to select
“VFO”.
3. Press [MENU].
• “SURE ?” appears.
• Press any key other than [MENU] to cancel.
4. Press [MENU] to reset the transceiver.
RESETTING THE TRANSCEIVER
TM-271A/271E
20
ADJUSTMENT
Adjustment Mode
In Adjustment Mode, the transceiver can adjusted using
its panel keys.
■
Items that can be adjusted in Adjustment Mode
*1
1. Frequency Tune
2. Transmit High Power *2
3. Transmit Low Power *2
4. DCS Balance *3
5. Max Deviation *3
6. CTCSS Fine Deviation *3
qBlinks in Adjustment Mode.
wAdjustment item display
eAdjustment value display. Can be adjusted while it is
“blinking”.
Displayed as a hexadecimal number from 00 to FF.
rAdjustment value stored in memory.
When an adjustment value is determined, it is equal to the
value in “3”.
■
Panel Key Operation Method in Adjustment Mode
qPower switch/Volume control
wWhen the knob is pressed once, the adjustment value dis-
play blinks. (Select an adjustment item with “4” or “5”
key before performing the operation. It cannot be per-
formed while transmitting.)
When the knob is rotated while the adjustment display is
blinking, the adjustment value changes. (Adjust transmis-
sion items while transmitting.)
When the knob is pressed again, the adjustment value
stops blinking and lights, and the adjustment value is
saved in the memory of the transceiver. (For transmission
item adjustment, enter receive mode before performing
the operation.)
eChanging between adjustment value display and fre-
quency display
The display changes as follows : Adjustment value display
→ Transmit frequency display → Receive frequency dis-
play → Adjustment value display.
The frequency for adjustment can be confirmed.
rMoves the adjustment item backward. (If it is operated
when a frequency is displayed, the adjustment item dis-
play returns.)
tMoves the adjustment item forward. (If it is operated
when a frequency is displayed, the adjustment item dis-
play returns.)
yIf it is pressed before determining the adjustment value,
the adjustment value of the Adjustment item returns to its
original value.
uNot used in Adjustment Mode.
Note :
If Max Power for transmission is low, check the DC cable.
If the DC cable connector has poor contact due to rust or
stain, voltage may drop occur frequently and correct trans-
mission power may not be supplied.
In this case, polish the DC cable connector. If the problem
still persists, replace the DC cable with a new one.
r
we
q
TM-271 MENU
qw
erty u
TX-RX unit
Component side
7. DCS Fine Deviation *3
8. DTMF Fine Deviation
9. Band Pass Tuning *4
10. Squelch Tight *5
11. Squelch Open *5
12. S-Meter S1 Level
13. S-Meter Full Level
Note :
*1 : The PLL lock voltage and Max Power Alignment for
transmission cannot be adjusted in Adjustment Mode.
*2 : Adjusted in 5 points in the transmission operating fre-
quency range.
*3 : Adjusted in 3 points for the Wide Band Width in the
transmission operating frequency range.
Adjusted in 1 point for the Narrow Band Width
*4 : Adjusted in 3 points in the reception operating frequency
range.
*5 : Adjusted in 3 points for the Wide Band Width in the re-
ception operating frequency range.
Adjusted in 1 point for the Narrow Band Width
■ How to Enter Adjustment Mode
To perform adjustments with transceiver panel keys, the
transceiver must be set to “Adjustment Mode”.
While shorting the following figure terminals on the PCB
with tweezers, etc., turn the power switch ON to enter Ad-
justment Mode. (See Fig. 1.)
■ LCD Display When Adjustment Mode is Enabled
Example of Frequency Tune. See “Table 1” for an LCD
display list.
Fig. 1
Fig. 2
Fig. 3
TM-271A/271E
21
Adjustment Item Adjustment On the Note Transmit Receive Signalling
Frequency Point
Display (MHz) (MHz)
Frequency Tune Center 155.10 155.05
TX High Power Low “H” icon appear 136.10 136.05
Low’ 142.10 142.05
Center 150.10 150.05
High’ 156.10 156.05
High 173.90 173.95
TX Low Power Low “L” icon appear 136.10 136.05
Low’ 142.10 142.05
Center 150.10 150.05
High’ 156.10 156.05
High 173.90 173.95
DCS Balance Low “DCS” icon appear 136.10 136.05 DCS : 023N
Center 155.10 155.05
High 173.90 173.95
DCS Balance (Narrow) Center “DCS” and “N” icon appear 155.10 155.05
Max Deviation Low 136.10 136.05
Center 155.10 155.05
High 173.90 173.95
Max Deviation (Narrow) Center “N” icon appear 155.10 155.05
CTCSS Fine Deviation Low “CT” icon appear 136.10 136.05 CTCSS : 88.5Hz
Center 155.10 155.05
High 173.90 173.95
CTCSS Fine Deviation (Narrow)
Center “CT” and “N” icon appear 155.10 155.05
DCS Fine Deviation Low “DCS” icon appear 136.10 136.05 DCS : 023N
Center 155.10 155.05
High 173.90 173.95
DCS Fine Deviation (Narrow)
Center “DCS” and “N” icons appear 155.10 155.05
DTMF Fine Deviation Center 155.10 155.05 DTMF : 9
DTMF Fine Deviation (Narrow)
Center “N” icon appear 155.10 155.05
Band Pass Tuning Low “BUSY” icon appear 136.10 136.05
Center 155.10 155.05
High 173.90 173.95
Squelch Tight Low 136.10 136.05
Center 146.10 146.05
High 173.90 173.95
Squelch Tight (Narrow) Center “N” icon appear 146.10 146.05
Squelch Open Low 136.10 136.05
Center 146.10 146.05
High 173.90 173.95
Squelch Open (Narrow) Center “N” icon appear 146.10 146.05
S-Meter S1 Level
Center 146.10 146.05
S-Meter Full Level
Center 146.10 146.05
ADJUSTMENT
Table 1 Adjustment items, display and test frequency list
TM-271A/271E
22
Test Equipment Required for Alignment
Test Equipment Major Specifications
1. Standard Signal Generator Frequency Range 136 to 175MHz
(SSG) Modulation Frequency modulation and external modulation
Output –127dBm/0.1µV to greater than –7dBm/100mV
2. Power Meter Input Impedance 50Ω
Operation Frequency 136 to 175MHz or more
Measurement Capability Vicinity of 100W
3. Deviation Meter Frequency Range 136 to 175MHz
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 1000MHz
Frequency Counter Frequency Stability 0.2ppm or less
7. Ammeter 20A
8. AF Volt Meter Frequency Range 50Hz to 10kHz
(AF VTVM) Voltage Range 1mV to 3V
9. Audio Generator (AG) Frequency Range 20Hz to 20kHz or more
Output 0 to 1V
10. Distortion Meter Capability 3% or less at 1kHz
Input Level 50mV to 10Vrms
11. 8Ω Dummy Load Approx. 8Ω, 10W or more
12. Regulated Power Supply 13.8V, approx. 20A (adjustable from 9 to 17V)
Useful if ammeter requipped
13. Spectrum Analyzer Center frequency 50KHz to 1000MHz
14. Tracking Generator Output Voltage 100mV or more
Tuning cable (E30-3383-05)
Adapter cable (E30-3383-05) is required for
injecting an audio if adjustment mode is
used.
MIC connector
(Front view)
Test cable for microphone input (E30-3360-08)
1 : BLC
2 : PSB
3 : E
4 : PTT
5 : ME
6 : MIC
7 : HOOK
8 : CM
ADJUSTMENT
Lead wire +
MIC
Shield wire –
3
2
4
5
6
7
8
3
1
2
4
5
6
7
8
1GREEN
RED
BLACK
BLUE
SHIELD
WHITE
GRAY
YELLOW
PTT
E
MIC-E
MIC
HK
1
8
TM-271A/271E
23
ADJUSTMENT
Adjustment Location
■ Adjustment Points
■ Notes
• EEPROM
The tuning data (Deviation, Squelch, etc.) for the EEP-
ROM, is stored in memory. When parts are changed, re-
adjust the transceiver.
• AF PA IC (IC252)
How to mounting the IC252.
• Speaker Cable
The speaker cable should be formed before mounting the
shield cover as below.
• Fuse
To mount the fuse, the cable terminal direction must be as
follow.
• Except the E type models
Locator
Speaker
cable
This side up This side up
Cable terminal Cable terminal
Fuse
Pin 1 marker
Part name label face down
IC252
TX-RX UNIT
Component side
ANT
TC401
TC402
L301
BPF
+B E
TX-RX unit
Foil side
F501
VR601
Q503 Q504
R516
R518
R524
IC252
GND
PR9
PR1
PKS
SQC
PKD
5M
CNVSS
RESET
POWER
RXD TXD
CV
RF
DC
+B
E
TEMP1
PC
8T
BPF
AFV
8T
TEMP2
TX-RX unit
Component side
• E type models
TM-271A/271E
24
ADJUSTMENT
PCB Section
1. Setting 1) Power supply voltage
DC Power supply terminal : 13.8V
2. VCO lock 1) CH : TX high Digital voltmeter CV TC402 5.5V ±0.2V
voltage*
2) CH : RX high TC401 5.5V ±0.2V
3) CH : TX low Check 0.5V or more
4) CH : RX low
3. IF coil 1) CH : RX center (Wide) SSG AFV L301 3.25~3.35V (DC)
2) SSG output : –53dBm (501µV) Digital voltmeter
Mod : 1kHz
Dev : 3kHz
* Adjustment of TX VCO lock voltage
1. Remove R516, F501, R518 and R524 (all on component side).
2. Remove PCB from chassis.
3. Transmit and check voltage at [CV] point.
Warning : Do not transmit if step “1.” is not complete.
4. Adjust of voltage can be done by tuning TC402.
Item Condition Test equipment
Terminal
Parts Method
Specifications/
Remarks
Measurement Adjustment
Transmitter Section
1. Frequency 1) CH : TX center Frequency counter ANT Encoder Adjust to center frequency Within ±50Hz
2) Transmit knob
2. Maximum 1) CH : TX high Power meter VR601 55W ±1W
power 2) Adjustment HEX value : FF
alignment 3) Transmit
3. High 1) CH : TX low Encoder Low : 50W ±1.0W
power CH : TX low’ knob Low’ : 60W
CH : TX center Center : 60W
CH : TX high’ High’ : 50W
CH : TX high High : 50W
2) Transmit
4. Low 1) CH : TX low 25W ±1.0W
power CH : TX low’
CH : TX center
CH : TX high’
CH : TX high
2) Transmit
5. DCS 1) CH : TX low (Wide) Modulation analyzer
Adjust the waveform as below
balance CH : TC center (Wide/Narrow) or Linear detector
CH : TX high (Wide) (LPF : 3kHz)
2) Transmit Oscilloscope
Item Condition Test equipment
Terminal
Parts Method
Specifications/
Remarks
Measurement Adjustment
TM-271A/271E
25
Item Condition Test equipment
Terminal
Parts Method
Specifications/
Remarks
Measurement Adjustment
ADJUSTMENT
If normal power is not obtained, please follow the
step below
Open the shielding cover (upper), and screw 3 locations
around ANT pin.
1. Switch off the transceiver.
Impedance of Final FET (Q504) and Drive FET (Q503) can
be measured easily using DVM Ω mode.
Normal condition – Gate : 20kΩ~50kΩ, Drain : 1MΩ~2MΩ
The above impedance values are rough estimations.
2. Switch on the transceiver. Check the voltage at F501 out-
put point.
The voltage is around 13.8V in receiving condition. The
voltage will be 12.6V~ in transmitting condition. If found
0V at this point then F501 is broken.
3. Remove R516.
4. Connect 50Ω load at the ANT location.
Transmit and check current drain at High power mode.
If the current drain is less than 1A, then Final FET is bro-
ken.
If the current drain is less than 5.0A, short the Drive FET
gate to ground, and check the current drain.
If the current drain is not 0.1A less than the original value,
then the Drive FET is broken.
5. Check input power level at Drive FET gate location.
Connect the wire to [RF] location.
Transmit and check for power to be within the range of
0.3W~0.6W.
If power found is less than 0.3W, check the circuit before
the Drive FET.
6. MAX 1) CH : TX low (Wide) Modulation analyzer ANT Encoder ±4.0kHz (Wide) ±100Hz (Wide)
deviation CH : TX center (Wide/Narrow) or Linear detector MIC knob ±2.0kHz (Narrow) ±50Hz (Narrow)
CH : TX high (Wide) (LPF : 15kHz) According to the large +, –
2) AG : 1kHz/50mV Oscilloscope
3) Transmit AG
AF V.M
7. MIC 1) CH : TX center (Narrow) Check ±1.2~1.9kHz
sensitivity 2) AG : 1kHz/5.4mV (TM-271A) (Narrow)
AG : 1kHz/2.4mV (TM-271E)
3) Transmit
8. CTCSS 1) CH : TX low (Wide) Modulation analyzer Encoder ±0.75kHz (Wide) ±50Hz
fine CH : TX center (Wide/Narrow) or Linear detector knob ±0.35kHz (Narrow)
deviation CH : TX high (Wide) (LPF : 3kHz)
2) Transmit Oscilloscope
9. DCS fine 1) CH : TX low (Wide) ±0.75kHz (Wide) ±50Hz (Wide)
deviation CH : TX center (Wide/Narrow) ±0.35kHz (Narrow) ±40Hz (Narrow)
CH : TX high (Wide)
2) Transmit
10. DTMF 1) CH : TX center (Wide/Narrow) ±3.0kHz (Wide) ±200Hz (Wide)
fine 2) Transmit ±1.5kHz (Narrow) ±100Hz (Narrow)
deviation
Receiver Section
1.
Band pass
1) CH : RX low (Wide) SSG ANT Encoder Adjust to maximum SINAD. SINAD
tuning CH : RX center (Wide/Narrow) Oscilloscope EXT. SP knob : 12dB or higher
CH : RX high (Wide) AF V.M
2) SSG output Distortion meter
: –121dBm (0.2µV) (Wide)
: –119dBm (0.25µV) (Narrow)
Mod : 1kHz
Dev : ±3.0kHz (Wide)
Dev : ±1.5kHz (Narrow)
Item Condition Test equipment
Terminal
Parts Method
Specifications/
Remarks
Measurement Adjustment
TM-271A/271E
26
2. Squelch 1) CH : RX low (Wide) SSG ANT Encoder Adjust to open the squelch
tight CH : RX center (Wide/Narrow) Oscilloscope EXT. SP knob
CH : RX high (Wide) AF V.M
2) SSG output Distortion meter
:
–115dBm (0.4µV) (Wide/Narrow)
Mod : 1kHz
Dev : ±3.0kHz (Wide)
Dev : ±1.5kHz (Narrow)
3. Squelch 1) CH : RX low (Wide)
open CH : RX center (Wide/Narrow)
CH : RX high (Wide)
2) SSG output
:
–125dBm (0.126µV) (Wide/Narrow)
Mod : 1kHz
Dev : ±3.0kHz (Wide)
Dev : ±1.5kHz (Narrow)
4. RSSI 1) CH : RX center (Wide) Push RSSI value writing is per-
writing 2) SSG output : –53dBm (501µV) encoder formed by the “Squelch
Mod : 1kHz knob open” item (center wide).
Dev : ±3.0kHz SSG output level is changed
and adjusted after SQ
adjustment.
This adjustment should not
turn the encoder.
5. S-meter 1) CH : RX center (Wide)
S1 2) SSG output : –118dBm (0.28µV)
Mod : 1kHz
Dev : ±3.0kHz
6. S-meter 1) CH : RX center (Wide)
full scale 2) SSG output : –96dBm (3.54µV)
Mod : 1kHz
Dev : ±3.0kHz
Item Condition Test equipment
Terminal
Parts Method
Specifications/
Remarks
Measurement Adjustment
ADJUSTMENT
TM-271A/271E
27
TX-RX UNIT (X57-685X-XX)
CN No. Pin No.
Name Function
CN1 1 ENC A Encoder A
2CM Microphone Key Check
3ENC B Encoder B
4MIC KEY Microphone Key
5DI Data Out from LCD
6CE Chip Enable for LCD
7CL Clock for LCD
8DO Data transfer to LCD
95C 5V DC power supply
10 8C 8V DC supply
11 VOL Volume
12 POWER Power Key
13 RXD RXD
14 BRI Brightness Control
15 PTT PTT
16 GND Ground
17 GND Ground
18 MIC Microphone
CN2 1 GND Ground
2SQC Squelch Signal
3PKS Transmission Control
4PR1 1200bps Receive Data
5PR9 9600bps Receive Data
6GND Ground
7PKD Transmission Modulation
CN No. Pin No.
Name Function
CN5 1 INT SP Internal speaker
2GND Ground
DISLAY UNIT (X54-3450-10)
CN No. Pin No.
Name Function
CN1 1 ENC A Encoder A
2CM Microphone Key Check
3ENC B Encoder B
4MIC KEY Microphone Key
5DI Data Out from LCD
6CE Chip Enable for LCD
7CL Clock for LCD
8DO Data transfer to LCD
95C 5V DC power supply
10 8C 8V DC supply
11 VOL Volume
12 POWER Power Key
13 RXD RXD
14 BRI Brightness Control
15 PTT PTT
16 GND Ground
17 ME ME
18 MIC Microphone
TERMINAL FUNCTION
JIHGFEDCBA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D2
COM3
COM2
COM3
COM0
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SG
D3
J1
MIC JACK
D19D20D21
CALL VFO MR
D22 D23
D25D26D27 D28 D29
VR1
POWER/VOL
C24
C27
C30
C31
C32
C33
C36
C38
C39
8C
8C
PTT
PTT
MIC
MIC
CM
CM
MBL
MBL
GND
GND
ME
ME
HOOK
HOOK
C40R55
C4
L1
D31
IC3
1
16
17
32
33
48
49 64
R21
R22
R23
R25
R46
R51
R52
R53
CP1
C15
C16
C19
LCD
28
TM-271A/271E
PC BOARD
DISPLAY UNIT (X54-3450-10) Component side view (J72-0905-09)
DISPLAY UNIT (X54-3450-10) Foil side view (J72-0905-09)
JKLMNOPQRS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
D3
D4
REV
FUNCTION
D
23 D24
D
29 D30 S1
ENCODER
J72-0905-09
J72-0905-09
R47
R48
C22
C25
C27
C32
C34
C35
Q10
Q12
1
23
5
L1
R10
R26
Q6
Q9
B
C
E
R8
R41
R42
R43
R44
R45
R49
R50
R54
CN1
1
18
ENCA
CM
ENCB
MIC KEY
DI
CE
CL
DO
5C
8C
VOL
POWER
RXD
BRI
PTT
GND
ME
MIC
29
Component side
Foil side
Layer 1
Layer 2
Component side
Foil side
Layer 1
Layer 2
DISPLAY UNIT (X54-3450-10) Foil side view (J72-0905-09)
DISPLAY UNIT (X54-3450-10) Component side view (J72-0905-09)
PC BOARD
TM-271A/271E
Ref. No. Address
D2 6F
D3 6J
D4 5O
D19 4G
D20 4P
D21 4E
D22 4I
D23 4J
D24 4K
D25 3G
D26 3F
D27 3E
D28 3I
D29 3J
D30 3K
Ref. No. Address
IC3 11H
Q6 10M
Q9 11M
Q10 10N
Q12 10N
D31 9C
JKLMNOPQRSIHGFEDCBA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D2
COM3
COM2
COM3
COM0
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
D3
D4
J1
MIC JACK
D19D20D21
CALL VFO MR REV
FUNCTION
D22 D23 D24
D25D26D27 D28 D29 D30 S1
ENCODER
J72-0905-09
J72-0905-09
VR1
POWER/VOL
R47
R48
C22
C24
C25
C27
C30
C31
C32
C33
C34
C35
C36
C38
C39
8C
8C
PTT
PTT
MIC
MIC
CM
CM
MBL
MBL
GND
GND
ME
ME
HOOK
HOOK
C40R55
Q10
Q12
1
23
5
C4
L1
D31
IC3
1
16
17
32
33
48
49 64
R10
R21
R22
R23
R25
R26
Q6
Q9
B
C
E
R8
R41
R42
R43
R44
R45
R46
R49
R50
R51
R52
R53
R54
CN1
CP1
C15
C16
C19
LCD
1
18
ENCA
CM
ENCB
MIC KEY
DI
CE
CL
DO
5C
8C
VOL
POWER
RXD
BRI
PTT
GND
ME
MIC
28 29
TM-271A/271E
PC BOARD
Component side
Foil side
Layer 1
Layer 2
Component side
Foil side
Layer 1
Layer 2
DISPLAY UNIT (X54-3450-10) Component side view (J72-0905-09)
DISPLAY UNIT (X54-3450-10) Foil side view (J72-0905-09) DISPLAY UNIT (X54-3450-10) Foil side view (J72-0905-09)
DISPLAY UNIT (X54-3450-10) Component side view (J72-0905-09)
PC BOARD
TM-271A/271E
Ref. No. Address
D2 6F
D3 6J
D4 5O
D19 4G
D20 4P
D21 4E
D22 4I
D23 4J
D24 4K
D25 3G
D26 3F
D27 3E
D28 3I
D29 3J
D30 3K
Ref. No. Address
IC3 11H
Q6 10M
Q9 11M
Q10 10N
Q12 10N
D31 9C
JIHGFEDCBA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C20
R401
R402
R403
R408
C28
R409
C29
J1
EXT. SP
R410 R411
R412
R413
R414
R418
R419
IC33
O
G
B
C
E
I
R420
R421
R422
C44
C45
C49
R236
R237
C50
C201
C51
C52
R246
R248
C400
C401
R249
C402
C403
C408
R250
C410
C411
C412
C413
C414
C416
C417
R268
R269
C422
C423
C424
C425
C82
C83
C235
R271
R272
R273
R274
F501
Q35
R275
R276
Q36
R277
R278 R279
R280
C249
C250
D3
D4
D5
D6
C267
C268
D401
D402
C270 +
+
+
+
+
+
+
C271
C272
C273
Q503
S
S
GD
C274
C275
C276
C277
C278
F1
C281
C475
C476
IC204
IC205
1
34
5
1
34
5
L503 L504
L505
IC401
D251
R101
R105
R106
R118
R119
E
SP
R120
R121
R122
R125
R516
R518
R519
R520
R521
R523
R524
R525
R527
R
5
R529
R
R151
R152
C514
C516
C517
C518
C519
C522
C525
C527
C528
C529
R35
R1
R36
R2
R37
R3
C530
C531
C533
C536
C151
C152
C559
Q402
Q403
C560
L201
D503
L404
R81
R82
IC252
1
10
IC
5
5
8
CN1
CN2
CN5
Q252
Q253
DS
GDS
G
Q254
Q255
C10
1
17
18
2
CM
MIC KEY
CE
DO
8C
POWER
BRI
GND
MIC
ENCA
ENCB
DI
CL
5C
VOL
RXD
PTT
ME
C13
R200
C15
C16
C17 C18
C19
GND
PR9
PR1 PKS
SQC
PKD
5M
CNVSS
RESET
1
7
POWER
RXD
TXD
CV
RF
DC
+B
E
8T
+
+
+
PKD
GND
PR9
PR1
PKS
SQC
GND
+
1
1011
20
30
TM-271A/271E
PC BOARD
TX-RX UNIT (X57-685X-XX) Component side view (J72-0906-09)
0-10 : TM-271A (K) 0-21 : TM-271A (M2) 0-22 : TM-271A (M3)
0-23 : TM-271A (M4) 2-71 : TM-271E (E)
JKLMNOPQRS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R210
R404
R211
R212
R406
R213
R407
R214
R408
R215
R409
R216
R217
R218
R219
IC161
1
12 13
24
R605
R606
R607
R220
R221
R222
R224
R225
R226
J72-0906-09
R227 R228
R229
R230
R231
R232
R233
R234
C202
C203
C204
C205
C206
C207
C208
C209
R247
C400
C210
C404
C211
C212
C406
C213
C214
C408
C215
C409
C216
C217
C218
C602
C603
C410
X401
C605
C411
C412
C413
C608
C220
C222
C225
C226
C227
C228
C613
C614
C615
C230
C231
C232
C233
C623
VR601
C97
C98
C442
D201
D202
Q302
+
+
+
+
Q504 DG
L302
D602
D603
L303
L304
C473
D608
IC201
1
45
8
1
45
8
IC202
IC203
L506
L507
L508
L509
Q351
Q354
G
SD
R302
R303
R304
R305
R306
R311
R312
R313
R314
R315
R316
R317
R318
R319
R320
R321
1
78
14
R322
R323
R324
R
521
R524
R527
R528
R529
R530
R531
R532
C303
R533
C304
TH301
C305
R349
C310
C311
C312
C313
C314
R350
C315
R351
C316
R352
R353
C317
C318
R354
C319
R355
R161
R162
R164
C128
R165
R166
C321
C322
C323
C324
C525
R379
C536
C541
C542
C350
C351
C545
C546
C353
C354
C161
C355
C549
C162
C356
C163
C164
Q201
C165
C550
C552C553
C554 C555
D302
D303
C559
C560
L401
L403
L404
C574
C576
C389
IC501
1
45
8
TH97
TH98
R203
R204
R205
R206
R207
R208
R209
TEMP1
PC
8T
BPF
AFV
8T
TEMP2
1
1
0
+
+
+
+
+
+
+
+
+
+
31
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
TX-RX UNIT (X57-685X-XX) Component side view (J72-0906-09)
0-10 : TM-271A (K) 0-21 : TM-271A (M2) 0-22 : TM-271A (M3)
0-23 : TM-271A (M4) 2-71 : TM-271E (E)
PC BOARD
TM-271A/271E
Ref. No. Address
IC33 12B
IC161 1N
IC201 10P
IC202 11P
IC203 12P
IC204 10I
IC205 11I
IC252 10B
IC401 12J
IC501 8J
Q35 13C
Q36 12C
Q201 11O
Q252 12F
Q253 12F
Q254 11D
Q255 10D
Q302 13K
Q351 12N
Q354 9O
Q402 12H
Q403 13H
Q503 6G
Q504 5K
D3 12E
D4 12E
D5 11E
D6 11E
D201 11O
D202 10O
D251 9E
D302 12O
D303 12O
D401 12J
D402 13I
D503 8J
D602 7P
D603 7Q
D608 8L
JKLMNOPQRSIHGFEDCBA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C20
R401
R402
R403
R210
R404
R211
R212
R406
R213
R407
R214
R408
C28
R215
R409
C29
J1
EXT. SP
R216
R217
R218
R219
R410 R411
IC161
1
12 13
24
R605
R412
R606
R413
R607
R414
R220
R221
R222
R418
R224
R225
R419
R226
J72-0906-09
R227
IC33
O
G
B
C
E
I
R228
R229
R420
R421
R422
C44
R230
C45
R231
R232
R233
R234
C49
R236
R237
C50
C201
C51
C52
C202
C203
C204
C205
C206
C207
C208
C209
R246
R247
R248
C400
C401
R249
C402
C403
C210
C404
C211
C212
C406
C213
C214
C408
R250
C215
C409
C216
C217
C218
C602
C603
C410
X401
C605
C411
C412
C413
C608
C414
C220
C416
C222
C417
C225
C226
C227
C228
C613
R268
C614
R269
C615
C422
C423
C424
C230
C425
C231
C232
C82
C233
C83
C235
R271
R272
R273
R274
F501
Q35
R275
R276
Q36
R277
C623
R278
VR601
R279
R280
C97
C98
C249
C442
C250
D3
D4
D5
D6
D201
D202
Q302
C267
C268
D401
D402
C270 +
+
+
+
+
+
+
+
+
C271
C272
C273
Q503
S
S
GD
C274
Q504 DG
C275
C276
C277
C278
F1
L302
D602
D603
L303
L304
C473
D608
C281
IC201
1
45
8
1
45
8
C475
IC202
C476
IC203
IC204
IC205
1
34
5
1
34
5
L503 L504
L505
L506
L507
L508
IC401
L509
D251
Q351
Q354
G
SD
R101
R105
R106
R302
R303
R304
R305
R306
R118
R119
E
SP
R311
R312
R313
R120
R314
R121
R315
R316
R122
R317
R318
R125
R319
R320
R321
1
78
14
R322
R516
R323
R324
R518
R519
R520
R521
R523
R524
R525
R527
R528
R529
R530
R531
R532
C303
R533
C304
TH301
C305
R151
R152
R349
C310
C311
C312
C313
C314
R350
C315
R351
C316
R352
R353
C317
C318
R354
C319
R355
R161
R162
R164
C128
R165
R166
C514
C321
C322
C516
C323
C517
C324
C518
C519
C522
C525
C527
C528
C529
R35
R1
R36
R2
R37
R3
C530
R379
C531
C533
C536
C151
C152
C541
C542
C350
C351
C545
C546
C353
C354
C161
C355
C549
C162
C356
C163
C164
Q201
C165
C550
C552C553
C554 C555
D302
D303
C559
Q402
Q403
C560
L201
D503
L401
L403
L404
C574
C576
R81
R82
IC252
1
10
C389
IC501
1
45
8
CN1
CN2
CN5
TH97
TH98
Q252
Q253
DS
GDS
G
Q254
Q255
C10
1
17
18
2
CM
MIC KEY
CE
DO
8C
POWER
BRI
GND
MIC
ENCA
ENCB
DI
CL
5C
VOL
RXD
PTT
ME
C13
R200
C15
C16
C17
R203
C18
R204
C19
R205
R206
R207
R208
R209
GND
PR9
PR1 PKS
SQC
PKD
5M
CNVSS
RESET
1
7
POWER
RXD
TXD
CV
RF
DC
+B
E
TEMP1
PC
8T
BPF
AFV
8T
TEMP2
+
+
+
PKD
GND
PR9
PR1
PKS
SQC
GND
+
1
1011
20
+
+
+
+
+
+
+
+
+
+
30 31
TM-271A/271E
PC BOARD
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
TX-RX UNIT (X57-685X-XX) Component side view (J72-0906-09)
0-10 : TM-271A (K) 0-21 : TM-271A (M2) 0-22 : TM-271A (M3)
0-23 : TM-271A (M4) 2-71 : TM-271E (E)
TX-RX UNIT (X57-685X-XX) Component side view (J72-0906-09)
0-10 : TM-271A (K) 0-21 : TM-271A (M2) 0-22 : TM-271A (M3)
0-23 : TM-271A (M4) 2-71 : TM-271E (E)
PC BOARD
TM-271A/271E
Ref. No. Address
IC33 12B
IC161 1N
IC201 10P
IC202 11P
IC203 12P
IC204 10I
IC205 11I
IC252 10B
IC401 12J
IC501 8J
Q35 13C
Q36 12C
Q201 11O
Q252 12F
Q253 12F
Q254 11D
Q255 10D
Q302 13K
Q351 12N
Q354 9O
Q402 12H
Q403 13H
Q503 6G
Q504 5K
D3 12E
D4 12E
D5 11E
D6 11E
D201 11O
D202 10O
D251 9E
D302 12O
D303 12O
D401 12J
D402 13I
D503 8J
D602 7P
D603 7Q
D608 8L
JIHGFEDCBA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CF301
CF302
R601
R602
R415
R416
R417
R423
R424 R425
R426
R427
R429
R800
ANT
R430
R431
R432
R433
R434
R435
R436
R437
R438
R439
R440
R441
R442
R443
R444
R251
R252
R253
R254
R255
R256
R257
R258
R259
C606C607
C418
R260
TC401
R261
R262
R263
R264
C610
R265
C611
R266
C421
C616
C617
C
4
C427
C428
C429
C430
C431
C432
C
C43
7
C43
8
C439
C440
C441
C444
C251
C252
C253
C448
C254
C255
C449
C256
C257
C258
C259
C450
C451
C452
C453
C260
C454
C261
C455
C262
C456
C263
C457
C264
C458
C265
C459
Q301
C266
C460
C461
C462
C463
C464
C465
Q501
B
C
E
C466
C467
D408
C468
D409
L301
C471
D605
D606
D607
C474
L501
IC402
Q352
Q353
S
DG2
G1
R301
L351
BPF
L352
R308
L354
L355
R309
L356
L357
R501
IC251
1
78
14
R502
R503
R504
R310
R505
R506
R507
R509
R510
R325
R526
C301
C302
C306
C307
C308
C309
C501
C502
C503
C504
C505
C506
C507
C50
9
R356
R358
R359
C511
R360
R361
XF351
C326
R362
R363
R364 R365
R366
R367
R368
R369
R370
R371
R372
R373
R374
R375
R376
C357
C358
C359
C360
C361
D301
C362
C556
C363
C557
C544 C543
C364
C558
C366
C367
C368
Q404
C369
Q405
G
S
D
Q406
G
S
D
Q407
G
S
D
Q408
1
23
5
D501
D5
0
C370
C371
C372
C373
Q410
C374
Q411
C375
C376
C377
C378
C379
L407
L408
C380
C381
IC301
1
1011
20
L409
C382
C383
C384
C385
L601
C386
L602
C387
L603
C388
L410
L604
L605
L
4
L414
L415
L416
L417
L418
C390
L419
C391
L420 L421
L422
L423
Q440
Q251
D351
D352
D353
D354
+
S
DG2
G1
1
45
8+
32
TM-271A/271E
PC BOARD
TX-RX UNIT (X57-685X-XX) Foil side view (J72-0906-09)
0-10 : TM-271A (K) 0-21 : TM-271A (M2) 0-22 : TM-271A (M3)
0-23 : TM-271A (M4) 2-71 : TM-271E (E)
JKLMNOPQRS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C30
C33
C34
+
C35
C36
C37
C38
C39
IC31
IC32
IC34
IC35
1
34
5
1
34
5
C40
C41
C42
C43
R426
R
427
R428
R429
C53
C54
C55
C56
C61
C66
IC66
1
45
8
TC401
TC402
C426
C427
Q31
E
B
C
Q32
C87
Q33
Q34
C88 C89
C434
C90
C435
C436
C437
C438
C439
R281
C440
1
C444
D1
D2
2
Q61
L101
D403
D404
Q501
D405
Q502
B
C
E
D406
D407
C279
C280
C282
C283
L501
L502
Q86
G
DS
GD
S
Q87
R102
R103
R104
R109
R110
R111
R114
R507
R509
R123
R124
R126
R127
D31
R511
D32
R512
R513
R514
R522
C101
C102
C104
D61
D62
C507
C509 C510
C511
C512
C513
C515
C526
R31
R32
R33
R34
R4
R38
R5
R39
R6
R7
R8
R40
R41
R61
R62
R63
Q406
G
S
D
D502
R70
0
IC101
L405
L406
L407
L408
L411
L412
R86
L413
R87
L414
5
L416 R91
R92
R93
R94
X86
C14
J72-0906-09
1
25
26
50
51 75
76
100
+B E
+
+
+
+
+
O
G
I
I
O
G
33
PC BOARD
TM-271A/271E
Ref. No. Address
IC31 12Q
IC32 13O
IC34 13M
IC35 13L
IC66 11L
IC101 11N
IC251 12B
IC301 12E
IC402 13G
Q31 5P
Q32 4P
Q33 12P
Q34 12P
Q61 4P
Q86 10N
Q87 10N
Q251 11B
Q301 13E
Q352 10F
Q353 10B
Q404 12I
Q405 12I
Q406 13J
Q407 12I
Q408 11H
Q410 12I
Q411 12G
Q440 12H
Q501 10I
Q502 10K
D1 12O
D2 11O
D31 4N
D32 5Q
D61 4P
D62 4P
D301 13F
D351 10D
D352 10C
D353 9B
D354 8B
D403 11K
D404 11J
D405 13K
D406 12K
D407 12K
D408 12H
D409 10G
D501 10I
D502 10J
D605 7B
D606 5B
D607 4B
TX-RX UNIT (X57-685X-XX) Foil side view (J72-0906-09)
0-10 : TM-271A (K) 0-21 : TM-271A (M2) 0-22 : TM-271A (M3)
0-23 : TM-271A (M4) 2-71 : TM-271E (E)
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
JKLMNOPQRSIHGFEDCBA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CF301
CF302
R601
R602
C30
C33
C34
+
R415
C35
C36
R416
C37
R417
C38
C39
IC31
IC32
IC34
IC35
1
34
5
1
34
5
C40
C41
C42
R423
C43
R424 R425
R426
R427
R428
R429
R800
ANT
R430
R431
R432
R433
C53
R434
C54
C55
R435
C56
R436
R437
R438
R439
R440
R441
C61
R442
R443
R444
R251
C66
R252
R253
R254
R255
R256
R257
R258
R259
C606
IC66
1
45
8
C607
C418
R260
TC401
R261
R262
TC402
R263
R264
C610
R265
C611
R266
C421
C616
C617
C426
C427
C428
C429
Q31
E
B
C
Q32
C87
Q33
Q34
C88 C89
C430
C431
C432
C434
C90
C435
C436
C437
C438
C439
R281
C440
C441
C444
C251
C252
C253
C448
C254
C255
C449
C256
C257
C258
C259
D1
D2
C450
C451
C452
C453
C260
C454
C261
C455
C262
C456
C263
C457
C264
C458
C265
Q61
C459
Q301
C266
C460
C461
L101
C462
D403
C463
C464
D404
C465
Q501
B
C
E
D405
C466
Q502
B
C
E
D406
C467
D407
D408
C468
D409
L301
C279
C471
D605
D606
D607
C280
C474
C282
C283
L501
L502
Q86
G
DS
GD
S
Q87
IC402
Q352
Q353
S
DG2
G1
R102
R103
R104
R109
R301
R110
R111
L351
BPF
L352
R308
R114
L354
L355
R309
L356
L357
R501
IC251
1
78
14
R502
R503
R504
R310
R505
R506
R507
R509
R123
R124
R126
R127
R510
D31
R511
D32
R512
R513
R514
R325
R522
C101
C102
R526
C104
C301
C302
C306
C307
C308
C309
C501
C502
C503
C504
C505
D61
C506
D62
C507
C509
R356
C510
R358
R359
C511
C512
C513
C515
R360
R361
XF351
C326
R362
R363
R364 R365
R366
R367
R368
R369
C526
R370
R31
R371
R32
R372
R373
R33
R374
R34
R375
R376
R4
R38
R5
R39
R6
R7
R8
R40
R41
C357
C358
C359
C360
C361
D301
C362
C556
C363
C557
C544 C543
C364
C558
R61
C366
R62
C367
R63
C368
Q404
C369
Q405
G
S
D
Q406
G
S
D
Q407 G
S
D
Q408
1
23
5
D501
D502
C370
C371
C372
C373
R70
Q410
C374
Q411
IC101
C375
C376
C377
C378
C379
L405
L406
L407
L408
C380
C381
IC301
1
1011
20
L409
C382
C383
C384
C385
L601
C386
L602
C387
L603
C388
L410
L604
L411
L605
L412
R86
L413
R87
L414
L415
L416
L417
L418
C390
L419
C391
R91
R92
R93
R94
L420 L421
L422
L423
Q440
Q251
X86
D351
D352
D353
D354
C14
J72-0906-09
+
S
DG2
G1
1
45
8+
1
25
26
50
51 75
76
100
+B E
+
+
+
+
+
O
G
I
I
O
G
32 33
TM-271A/271E
PC BOARD PC BOARD
TM-271A/271E
Ref. No. Address
IC31 12Q
IC32 13O
IC34 13M
IC35 13L
IC66 11L
IC101 11N
IC251 12B
IC301 12E
IC402 13G
Q31 5P
Q32 4P
Q33 12P
Q34 12P
Q61 4P
Q86 10N
Q87 10N
Q251 11B
Q301 13E
Q352 10F
Q353 10B
Q404 12I
Q405 12I
Q406 13J
Q407 12I
Q408 11H
Q410 12I
Q411 12G
Q440 12H
Q501 10I
Q502 10K
D1 12O
D2 11O
D31 4N
D32 5Q
D61 4P
D62 4P
D301 13F
D351 10D
D352 10C
D353 9B
D354 8B
D403 11K
D404 11J
D405 13K
D406 12K
D407 12K
D408 12H
D409 10G
D501 10I
D502 10J
D605 7B
D606 5B
D607 4B
TX-RX UNIT (X57-685X-XX) Foil side view (J72-0906-09)
0-10 : TM-271A (K) 0-21 : TM-271A (M2) 0-22 : TM-271A (M3)
0-23 : TM-271A (M4) 2-71 : TM-271E (E)
TX-RX UNIT (X57-685X-XX) Foil side view (J72-0906-09)
0-10 : TM-271A (K) 0-21 : TM-271A (M2) 0-22 : TM-271A (M3)
0-23 : TM-271A (M4) 2-71 : TM-271E (E)
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
TM-271A/271E
SCHEMATIC DIAGRAM
34
7
6
5
4
3
2
1
ABCDE
-t
-t
C422
470p
C408
22p
R427
100k
C218
10u6.3
C444
470p
R422
10k
C438
0.5p
C437
470p
C212
1200p
R161
1.2k
C453
220p
C164
10u6.3
C88
4p
C232
1000p
R200
680
R227
22k
C220
4.7u6.3
C163
1000p
C441
0.5p
TC401
10p
R416
470
R229
680k
C215
0.1u
C432
0.3p
R166 1k
8C
C213
3300p
5C
C231
1000p
C233
4.7u6.3
L404
R162
1.5k
R419
2.7k
R218
82k
C87
3p
R208
1.5k
C450
22u10
R211
82k
R426
47k
R233
6.8k
C227
0.01u
R230
220k
R421
1.5k
5C
R207
*
D404
MA2S304
D403
MA2S304
C428
470p
5M
C421
470p
C410
10u6.3
C448
470p
R203
100k
R412
10k
D405
MA2S304
2SC4919
Q201
C205
0.1u
2SC4738(GR)
Q403
2SA1832(GR)
Q402
D406
MA2S304
R212
82k
L416
C403
100p
L201
R205
820
R409
100k
D401
MA2S111
C409
0.1u
C436
0.75p
R165 1k
R425
47k
R435
100
R415
0
C161
1000p
L405
C414
0.1u
D201
DAN222
5C
C452
470p
5M
R86
0
C230
0.1u
R436
120k
R164 1k
C402
100p
C208
0.01u
C207
*
IC201
NJM2100V
1
2
3
45
6
7
8
V+
R430
220
TC402
10p
C455
3p
R87
1k
R434
0
R410
8.2k
C416
1000p
R217
220k
C413
0.01u
D202
1SS372
C228
10u6.3
R413
10k
C411
0.1u
C204
2.2u10
R220
15k
C203
*
C418
1000p
C425
0.1u35
R221
15k
8C
R407
1.5k
C89
4p
R232
9.1k
C423
0.047u35
C217
10u6.3
C430 4.5p
R417
220k
L417
R401 1k
C406
1000p
R231
120k
R433
4.7k
8C
C214
150p
R411
5.6k
R402 1k
R213
330k
R214
68k
R414
470
R403 1k
C451
470p
C424
1u16
IC401
MB15A02
11
12
13
14
15
16
17
18
19
20
R219
180k
C210
0.1u
C454
6p
C417
1000p
R228
10k
L403
10u
R226
100k
D408
MA2S111
D402
HZU5ALL
C401
100p
C206
*
R215
68k
C201
0.1u
C90
3p
C226
4700p
C431
5p
C202
1000p
C211
820p
C404
15u6.3
C162
4.7u6.3
R216
270k
R432
1k
R408
10
R204
*
C449
470p
R418
1k
8C
R431
100k
R206
100
C225
1u16
R404
10k
R209
240k
R420
1k
R225
150k
C412
10u6.3
R210
18k
C442
10u6.3
R428
47k
CN2
1
2
3
4
5
6
7
D5
DA221
C16 470p
D6
DA221
C19 470p
C17 470p
C18 470p
C20 470p
IC205
BU4S66
1I/O
2O/I
3VSS 4
5
R237
0
R236
10k
C235
1u
PR9
PR1
PKS
SQC
5C
R234
0
IC204
BU4S66
1I/O
2O/I
3VSS 4
CONT
5
VDD
C222
0.1u
R224
560
PKD
PKD
5C
R93
6.8k
R94
10k
TH98
100k
C97
1000p
TH97
100k
C98
1000p
C216
39p
IC161
M62363FP
1
2
3
4
5
6
7
8
9
10
11
12 13
14
15
16
17
18
19
20
21
22
23
24
R222
10k
IC203
BA10324AFV
VCC VEE
C209 68p
C165
1u
X401
L77-1944-05
R406
10k
C475
1000p
C476
1000p
C473
1000p
C400
0.1u
L406
270n
L407
270n
C426
30p
L409
27u
L408
33n
C427
8p
L410
27u
R423
220
C429
1p
R429
270
L411
270n
C434
150p L413
47n
C435
10p
L412
270n
L414
27u
C439
10p
R424
100
L415
27u
C440
11p
L401
L418
33n
D407
1SV278
IC202
BA10358FV
1
2
3
45
6
7
8VCC
SPLATTER FILTER
OR GATE
W/NI(EVOL1)
5C
RX VCO
TX VCO
CV
VOTAGE
DROPPED
CHARGE PUMP
MIC AMP/
IDC
TCXO
IDC
AGC
BUFFER AMP
CK(CPU54)
DT(CPU53)
DT(CPU53)
HPF
TX-RX UNIT (X57-685X-XX)
W/NO(EVOL2)
DI
PLLE(CPU3)
FROO(EVOL23)
UL(CPU21)
CK(CPU54)
PLLE(CPU3)
8CL
8CL
LIPPLE
FILTER
DIGITAL
POTENTIOMETER
RX VCO
MODI(EVOL9)
TX VCO
KDC
Q402,403
D405,406
BEAT
SHIFT
BUFFER AMP
8C
D403,404
CV
MIC AMP/
SPLATTER
FILTER
MOD
MODULATION
8C
1/2Vcc
AGC/
MIC MUTE
T/R SW
PLL IC
D407
T/R SW
16.8MHz
BEAT
SHIFT
MOD
LIPPLE
FILTER
RF AMP
MOD
SUM AMP
PLL SYNTHESIZER
SQC
PKS
PR1
PR9
PKD
SINGLE
ANALOG SW
SINGLE
ANALOG SW
MOD BUFFA1/2Vcc
DC
AMP
Q201
SURGE ABSORPTION
D5,6
RIPPLE
FILTER
1
2
3
4
5
6
7
8
9
10 CLK
NC3
DATA
LE
FC
NC4
FOUT
P
NC5
ROSCIN
NC1
OSCOUT
VP
VCC
DO
GND
LD
NC2
FIN
2SC4649(N,P)
Q404 2SK508NV(K52)
Q406
2SJ347
Q407
2SK508NV(K52)
Q405 2SC5108(Y)
Q410
Q408
KRX102U
2SC2412K
Q440
CONT
VDD
2SK1830
Q87
X86
8.00MHz
L78-1409-05
2SK1830
Q86
8
9
10
11
12
13
14
1
2
3
4
5
6
7
2VOLI
2VOLO
BLO
BLI
1VOLI
1VOLO
DO
VDFref
RESET
GND
FRQI
FRQO
PC/TVO
PC/TVI
VDD
LD
CLK
DAT
MODI
MODO
W/NO
W/NI
BRII
BRIO
QT/DQT(CPU1)
1/2Vcc
EVLLD(CPU8)
UL(CPU21)
PLLE(CPU3)
M1MT(CPU76)
XOUT(CPU11)
XIN(CPU13)
TX DTMF
BSHIFT
P9MT(CPU75)
MICMT(CPU77)
TX/RX (CPU20)
W/NO(EVOL2)
W/NI(EVOL1)
MIC
VOLO(EVOL11)
VOLI(EVOL12)
DT(CPU53)
CK(CPU54)
BRI
PLLE(CPU3)
MODO(EVOL10)
PC/TV
UL(CPU21)
PC/TVO(EVOL3)
EVLLD(CPU8)
P9MT(CPU75)
MICMT(CPU77)
MOD
TX/RX (CPU20)
T:4.16V
T:0.82V
R:1.8mV(BS OFF)
5V(BS ON)
R:4.92V
T:3.9mV
R:7.04V
R:4.90V
R:0.74V
T:0.62V
R:3.37V
R:6.11V
R:6.17V
R:7.9V
R:0.71V
R:2.48V
R:7.7V
4.97V
R:4.98V
R:6.96V
T:6.8V
R:0.97V
R:4.96V
R:2.8mV
R:0.1mV
R:0.76V
R:4.05V
R:7.98V
R:7.01V
X57-685 1/3
SCHEMATIC DIAGRAM
TM-271A/271E
35
JIHGF
X57-685 2/3
35
C461
1000p
C377
1000p
R118 0
C511
1000p
R322
100
R301
4.7k
2SC3357
Q502
R371
39k
L504
27n
C514
1000p
R103
1k
L421
100n
C301
4.7u6.3
C376
1000p
C502
1000p
R353
100k
R324
0
C458
220p
C268
1u
C361
1000p
R101
47k
R376
100k
C319
1000p
R509
22
C312 0.1u
R514
0
L304
330n
C467
1000p
C515
27p
D409 DAN235E
8T
C465
22p
C372
1000p
C363
0.01u
R268
1k
R359
220k
R319
10k
C456
2p
C507
1000p
C459
1000p
C324
0.01u
C366
0.1u
C387
1000p
R360
470k
R351
470
8R
69
R106 1k
C314
0.01u
34
L302
330n
CNVSS
D303
DAN222
R366
470
R438
22k
C311 0.1u
C364
1000p
R370
56
C504
1000p
R510
1.5k
L501
68n
C384
2p
5M
C463
1000p
C151
1800p
5M
R315 18k
C519 82p
C383
1000p
R369
0
R444
1k
C101
1000p
R109
1.5k
IC66
AT24C64A10SI18
or CAT24WC64JI
1A0
2A1
3A2
4GND 5
6
7
8
R442
100
IC402
UPB1509GV
1
2
3
45
6
7
8
R516
0
C104
0.1u
R356
1k
5M
R317
10k
5M
R105 1k
L303
330n
8R
R504
270
C371
2p
R111
1k
R102
47k
R511
47
C505
1000p
R437
1k
R325
33k
C513
1000p
R503
18
C358
1000p
L101
C322
56p
C460
18p
C512
1000p
5C
L301
L34-4554-05
8C
8C
R81
47k
5C
R123
0
C378
1000p
D502
DA221
C302
1000p
R70
47k
71
R104
1k
L420
150n
R321
22k
C351
33p
R502
270
R82
0
R314 2.2k
C516
820p
L352
560n
C326
0.01u
C509
15p
D501
1SS355
C379
1000p
R151
10k
C518 33p
R513
2.2k
C466
100p
C313
15u6.3
C66 1000p
L503
27n
70
C323
270p
R512
10
8R
C510
8p
R364
0
R250
12k
R505
2.2k
8R
C267
0.47u
C464
1000p
5M
5M
C360
1000p
C357
0.01u
R152
4.7k
D302
DAN222
C462
10p
R373
47k
L422
56n
C316
0.1u
C250
0.1u
C375
1000p
C83
0.1u
C468
220p
C315
0.1u
L502
68n
C380
100p
L419
100n
R110
47k
R443
2.2k
R441
100
8R
C457
1000p
C501
1000p
R352
100
R362
470k
C506
1000p
R316
22k
C82
1000p
C362
1000p
R354
330
R249
15k
C503
100p
C517 3p
C370
1000p
R318
10k
R501
1k
C359
8p
R439
47k
R365
100k
C152
3900p
R368
100k
R506
10k
L351
820n
R323
120k
R507
10
2SC4649(N,P)
Q411
2SC3357
Q501
C102
0.1u
R302
4.7k
R320
10k
R269
39k
C317
0.1u
R375
100k
C353
0.01u
R440
100
17
5M
C318
0.1u
TONE
DTMF
PLLE
NC
NC
GND
CNVSS
EVLLD
BSHIFT
RESET
XOUT
VSS
XIN
VCC
GND
NC
POWER
INT
NC
TX/RX
UL
NC
NC
EEPSDT
EEPCK
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
P1MT
77
MICMT
78 NC
79 8RC
80 8TC
81 NC
82 SBC
83 NC
84 NC
85 NC
86 CM
87 MICKEY2
88 MICKEY
89 VOL
90 TEMP2
91 TEMP1
92 RSSI
93 SQIN
94 AVSS
95 DTMF IN
96 VREF
97 AVCC
98 NC
NC
NC
74
73
R124
47k
R92
1k
R91
1k
87
R127
47k
88
89
2SC2412K
Q302
C321
68p
C474
1000p
SQC
PKS
PR1
5M
68
R125
47k
R119
*
R120
*
R122 0
R121
*
R246
150k
R247
120k
R248
5.6K
C249
4.7u6.3
2SC5488
Q351
R355
470
C355
18p
C354
4.5p
C356
3p
R358
220
R361
180
C367
150p
R363
330k
C369
3p
L354
50n
L355
50n
D351
HVC376B
C368
27p
R367
100
C373
6p
C374
27p
D352
HVC376B
3SK318
Q352
G1
D
S
G2
3SK318
Q353
G1
D
S
G2
R372
47k
R374
27k
L356
50n
C382
27p
C386
36p
L357
35.5n
D353
HVC376B
D354
HVC376B
C471
10p
C128
1000p
R126
47k
L423
R114
47k
5M
C385
8p
C381
4.5p
2SK3019
Q252
2SK3019
Q253
8TC(CPU80)
FM DEMODULATION
TP
TEMPERATURE
COMPENSATION
TEMPERATURE
COMPENSATION
5M
WIDE(CPU65)
TXDRXD
RF SWITCH
NARROW
NARROW(CPU64)
D351,352
IF SWITCH
RF BPF TUNING
D353,354
IF AMP
50,4MHz
D501
8R 8R
IF SWITCH
W/NI(EVOL1)
EEPROM
RF AMP
CPU
AFV
AF MUTE
AF MUTE
AFI(EVOL12)
DIVIDER
(HETERO)
AFM(CPU50)
WIDE
RF AMP/
DRIVE STAGE
BUFFER AMP
RF BPF TUNING
MIXER RF AMP
8RC(CPU76)
8TC(CPU80)
AMPSW(CPU52)
SPM(CPU51)
BRI
8RC(CPU76)
VOLO(EVOL11)
W/NO(EVOL2)
MIC
PC/TV
RF AMP/
DRIVE STAGE
CM
MICKEY
VOL
TV
TX/RX (CPU20)
QT/DQT(CPU1)
EVLLD(CPU8)
TX DTMF
UL(CPU21)
PLLE(CPU3)
XOUT(CPU11)
XIN(CPU13)
POWER
M1MT(CPU76)
P9MT(CPU75)
MICMT(CPU77)
CK(CPU54)
DT(CPU53)
W/NO(EVOL2)
PC/TV
W/NI(EVOL1)
MIC
VOLI(EVOL12)
VOLO(EVOL11)
BRI
SQIN(CPU93)
RSSI(CPU92)
SBC(CPU82)
1/2Vcc
DTMF IN(CPU95)
BSHIFT
IC101
30622MAA-B85GP
NC
SQC
PKS
CLKFLS
BSYFLS
TXD
RXD
PTT
NC
NC
NC
EMPFLS
NC
NC
NC
NC
CEFLS
NC
NC
NC
NC
NC
AFM
EEPWP
NC
SPM
AMPSW
DT
CK
NC
DST1
DST2
DST3
DST4
VCC
NC
VSS
ADJ
NARROW
WIDE
NC
NC
CL
CE
DO(to LCD)
DI(from LCD)
NC
ENCB
ENCA
P9MT
99
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
SPM(CPU51)
AMPSW(CPU52)
W/NI(EVOL1)
VOLI(EVOL12)
SW1
SW2
OUT
VCC2VCC1
IN
IN
GND
SDA
SCL
WP
VCC
SQIN(CPU93)
SBC(CPU82)
RESET(CPU10)
INT(CPU18)
1/2Vcc
DTMF IN(CPU95)
RSSI(CPU92)
IC301
TK14489V
SCAN
SCAN
SQLIN
FLAMPO
RFIN
GND
Hy_C
FLAMPI
RSSI
AFO
VCC
IF_IN
DEC1
DEC2
PH_S
QUCO
OSC(B)
OSC(E)
NC
MIX_O
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
XF351
49.95MHz
L71-0620-05
CF301
L72-0993-05
CF302
L72-0999-05
R:3.22V
R:4.65V
R:4.27V
R:0.66V
T:0.48V
N:5V
W:0V
T:1.23V
R:2.46V
R:4.98V
R:7.99V
R:7.42V
R:4.84V
T:5.73V
4.98V
R:0.75V
R:0.56V
R:4.7mV(SQ OFF)
4.97V(SQ ON)
R:1.44V
R:6.34V
R:6.64V
N:0V
W:5V
T:1.26V
T:6.8V
T:0.88V
T:7.82V
R:1.23V
R:5V
R:2.7V
R:7.84V
T:5.61V
R:2.88VR:5.86VR:3.16V
TX-RX UNIT (X57-685X-XX)
TM-271A/271E
SCHEMATIC DIAGRAM
36
KLMNO
X57-685 3/3
-t
C33
1000p
C559
0.1u
R305
1.8k
L603
5T
C43
22u10 L601
6T
C527
1000p
R304
4.7k
B
5M
R259
12k
C617
1000p
IC33
NJM78L05UA
2
COM
3
IN
1
OUT
2
COM
3
IN
1
OUT
R252
470k
2SA1641(S,T)
Q31
R261
120k
C263
0.033u
C55
0.1u
R36
1.5k
5C
R258
2.7k
C29
470p
R527
220k
R350
27k
BSB
C603
1000p
C257
0.039u
R41
330k
C41
22u10
R606
220
C307
0.022u
C45
22u10
C530
0.47u
C281 1000p
R526
150
R37
0
TH301
100k
8R
5C
C310
0.33u
R278
12k
C52
1000p
8T
L604
5T
R34
4.7k
R521
100
C44
22u10
R271
3.3k
8T
C34
330u 25
L509
9.5T
R39
470k
Q254
DTC363EU
R257
1M
R255
5.6k
C278 0.1u
KTA1664(Y)
Q35
68
C54
0.1u
L508
2.5T
D608
1SS355
D602
MA4PH633
R306
270k
C606
0.5p
R265
5.6k
R308
330k
C254
0.22u
SB
73
R275
15k
R33
47k
R276
47k
C36
1000p
C306
1000p
R273
12k
C258
0.01u
C536
1000p
C350
470p
C274
0.22u
C546
0.47u
R800
F501
R520
18k
R605
15k
C39
0.1u
D61
02DZ18(X,Y)
R531
47k
C272
1000p
R251
47k
70
Q36
KRC102S
R519
33k
C28
220p
B
C276
1000p
R281
0
C49
0.01u
34
C550
68p
C526
680p
R266
5.6k
C266
1u
C277
1000p
2SA1745(6,7)
Q33
C557
0.01u
R61
470
C615
22p
8C
R349
47k
C251
4.7u6.3
R530
1k
D301
MA742
Q32
KRC102S
C531
47u25
C38
1000p
D251
MA742
74
C545
1000p
R533
0
D606
MA742
L605
9.5T
C522
1000p
C610
0.5p
C308
1000p
C608
27p
71
R277
68k
C271
1200p
CN5
C616
1000p
C42
0.01u
69
35
C529
1000p
C275
1u
C61
1000p
D32
1812L110PR
L602
5T
R254
2.7k
89
C574
1000p
C554
1000p
R312
47k
C53
1000p
C560
1000p
C613
27p
C576
220p
C265
0.1u
R256
5.6k
C51
10u6.3
D503
02DZ5.1(Y)
C280 47u16
R602
22k
R313
100k
17
5C
C389
1000p
L506
9.5T
C279 4.7u16
R601
22k
R279
4.7k
87
R310
1k
R263
91k
BSB
L507
1T
R379
100k
C253
0.22u
C262
1000p
R532
0
D607
MA742
R518
33
R35
47k
Q34
KRC102S
C40
0.1u
R274
15k
R62
0
C273
1u
C611
2p
C56
1000p
R525
56k
R529
470
R253
0
8T
C558
0.01u
R31
4.7k
C549
220p
R40
390k
Q255
KRC102S
R528
470
C35
1000p
C525
1000p
D31
ZSH5MA27
R272
3.9k
R524
470
Q61
KRC404RTK
R264
120k
R38
330k
8T
2
COM
1
IN
3
OUT
C556
1000p
C252
39p
8R
C50
0.01u
C255
8200p
8C
C309
0.022u
C283
1000p
C37 1000p
R303
22k
IC501
TA75W01FU
1
2
3
4
VEE
5
6
7
8
VCC
D605
XB15A709
C261
0.01u
R309
3.3k
R262
18k
C256
0.018u
R311
33k
C607
2p
C303
4700p
R260
220k
C30
1000p
C528
220p
R32
470
C264
0.033u
R280
390
C555
5p
R4 1k
R2 100
R3 100
CN1
R7 1k
R5 1k
R8 1k
R6 1k
C13 470p
C14 470p
C10 1000p
C15 470p
R1 0
D3
DA221
D2
DA221
D4
DA221
D1
DA221
8C
5C
5M
88
R522
330
R523
39k
C533
100p
L505
15n
C542
12p
C541
12p
C552
22p
C553
3p
C614
*
C623
3p
C602
12p
C605
15p
D603
XB15A709
VR601
47k
R607
330
PR9
C305
330p
C304
330p
1
2
3
4VCC
5
6
7
VEE
2SC2412K
Q251
FB
R63
0
D62
MA2S077
1NC
2SUB
3GND 4
VOUT
5
VCC
IC34
BD4732G
1NC
2SUB
3GND 4
VOUT
5
VCC
J1
F1
FB
C282
330u25
C388
7p
C390
9p
C391
16p
2SK1830
Q354
PD55003TR
Q503
C544
15p
C543
15p
KEC
8TC
CURRENT
PROTECTION
BUFFER
AMP
MIC
AUDIO
FILTER
SQIN(CPU93)
B
OVER VOLTAGE
DETECTION
E
VOLTAGE
REGULATOR
(8C)
REVERSE
CONNECTION
PROTECTION
APC CONTROLLER
FINAL AMP
D603,605
TEMPERATURE
COMPENSATION
1/2Vcc
D31
TV
5M
LIMITTER
PC/TV SW
KEC
PC
8T
KEC
Q35,36
APC VOLTAGE
DETECT
VOLTAGE
DETECTOR
(RESET)
D606,607
ANT SW
ANT SW
D1-4
VOLTAGE
REGULATOR
(5M)
8TC(CPU80)
8RC(CPU76)
D32
DRIVE AMP
RX
1,1A
5C
DETECTION
VOLTAGE
DETECTOR
(INT)
DC SW (SB)
8C
W/NO(EVOL2)
NOISE AMP/
SQL AMP
VOLTAGE
PROTECTION
KEC
Q33,34
KEC
8C
SB
OVER VOLTAGE
DETECTION
VOLTAGE
REGULATOR
(5C)
SURGE ABSORPTION
KEC
AF MUTE
AF MUTE
8R
POWER
IC252
LA4600
12345678910
PTT
BRI
RXD
POWER
VOL
8C
5C
DO
CL
CE
DI
MICKEY
ENCB
CM
ENCA
MIC
DC SW (SB)
DC SW (8R)
DC SW (8T)
OVER VOLTAGE
DETECTION
BRI
AUDIO AMP
RD70HVF1-01
Q504
AMPSW(CPU52)
MIC
8TC(CPU80)
SPM(CPU51)
8RC(CPU76)
BRI
PC/TV
VOLO(EVOL11)
W/NO(EVOL2)
2SC2412K
Q301
8
9
10
11
12
13
14
IC251
BA10324AFV
DTMF IN(CPU95)
INT(CPU18)
RESET(CPU10)
SBC(CPU82)
1/2Vcc
SQIN(CPU93)
INT(CPU18)
RESET(CPU10)
SBC(CPU82)
IC35
BD4740G
IC31
KIA7808AF
IC32
NJM78L05UA
AMPSW(CPU52)
VOLO(EVOL11)
SPM(CPU51)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
C259
0.01u
C260
0.01u
C270
4.7u6.3
T:1.6V
R:4.02V
R:13.8V
T:13.45V
T:1.45V
R:4.98V
R:2.7V
R:7.9V
R:13.8V
R:4.98V
T:7.55V
R:13.66V
T:12.94V
R:4.31V
R:1.15V
R:3.37V
R:4.98V
R:1.74V
R:3.3V
R:7.9V
T:0.76V
T:7.84V
R:7.95V
T:2.5V
T:1.46V
T:7.85V
R:0.87V
T:4.97V
T:7.84V
TX-RX UNIT (X57-685X-XX)
SCHEMATIC DIAGRAM
TM-271A/271E
37
7
6
5
4
3
2
1
TSRQP
X54-345 1/1
C25
1000p
C15
100p
R43
820
C33
1000p
C19
680p
C4
100p
D26
B30-2205-05
Q12
UMG3N
D21
B30-2205-05
J1
1
8
R41
56
CP1
R90-0724-05
C35
4700p
D24
B30-2205-05
R54
56
C39
0.1u
D2
C22
1000p
Q6
KRC102S
C40
0.1u
L1
R44
18k
CN1
R21
10k
D30
B30-2205-05
R46
100
D31
1SS355
C27
1000p
R51
0
D3
B30-2205-05
R23
10k
R25
56k
D4
C38
470p
D22
B30-2205-05
C36
1u
D23
B30-2205-05
R10
1.2k
R48
47k
R26
3.9k
D19
B30-2205-05
R49
56
C32
1000p
C24
0.1u
C31
1000p
R42
2.7k
Q10
KRA225S
R47
47k
D25
B30-2205-05
R45
33k
C16
100p
BL
NC
NC
NC
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
NC
50
KI1
51
KI2
52
KI3
53
NC
54
NC
55
NC
56
VDD
57
VDD1
58
VDD2
59
VSS
60
OSC
61
DO (to cpu)
62
CE
63
CL
64
DI (from cpu)
C34
4700p
D29
B30-2205-05
D20
B30-2205-05
R53
0
D27
B30-2205-05
R22
10k
VR1
R31-0646-05
R50
56
C30
0.1u
R52
0
D28
B30-2205-05
R8
1k
S1
W02-3665-05
SEG9
SEG15
SEG7
SEG10
SEG23
SEG3
SEG21
SEG11
COM2
SEG13
COM1
RESISTOR
COM3
SEG24
KEY ILLUMINATION
SEG1
LCD (B38-0885-05)
SEG17
SEG27
SEG29
SEG4
SEG26
SEG31
SEG5
SEG14
SEG18
SEG19
VARIABLE
SEG8
SEG12
SEG2
SEG20
LCD ILLUMINATION
DISPLAY UNIT (X54-3450-10)
SEG22
MR
SEG0
SEG16
COM0
SEG6
SEG28
SEG25
SEG30
ENCODER
LCD CONTROLLER
KEY BACKLIT SWITCH
DIMMER
FUNCTION
SWITCH
LCD BACKLIT
D2-4
LCD BACKLIT SWITCH
DC SWITCH
KEY BACKLIT
D19-30
MHz & MENU
ADJUASTMENT
ON/OFF & VOLUME
ADJUASTMENT
144-148MHz
144-146MHz
TM-271A
TM-271E E
K
M3
M2
M4
X57-685X-XX
0-23
0-10
0-21
0-22
2-71
Func
CALLVFO
REV
CM
HOOK
MIC
ME
PTT
GND
8C
MBL(Key A)
ENCODER A
CM
ENCODER B
MIC KEY
DI(from LCD)
CE
CL
DO
5C
8C
VOL
POWER
RXD
BRI
PTT
GND
ME
MIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
2SB1132(Q,R)
Q9
IC3
LC75854W
or
PT6554LQ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 SEG28
SEG29
SEG30
SEG31
NC
NC
NC
COM0
COM1
COM2
COM3
KS1
KS2
NC
NC
NC
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG20
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
C203
0.027u
0.027u
0.047u
0.027u
0.027u
1000p
1000p
680p
1000p
C206
1000p 0.022u
0.022u
0.022u
0.022u
C207
0.039u
NO
C614
3p
NO
NO
NO
0
0
R119
0
NO
00
0
NO
R120
NO
NO
0
R121
0
NO
NO
NO
10k
18k
R204
18k
18k
18k
1M
750k
750k
750k
750k
R207
R55
0
7.30V
7.90V 7.10V
4.96V
4.94V
4.96V
5.02V
7.90V
4.80V(BRIGHTNESS MAX)
0V(BRIGHTNESS OFF)
Note : The components marked with a dot (•) are parts of layer 1.
-t
-t
-t
C422
470p
C33
1000p
C559
0.1u
35
C408
22p
R427
100k
R305
1.8k
C461
1000p
C377
1000p
L603
5T
C218
10u6.3
C43
22u10
R118 0
C444
470p
L601
6T
C527
1000p
R422
10k
C438
0.5p
R304
4.7k
C511
1000p
C437
470p
C212
1200p
R161
1.2k
C453
220p
R322
100
B
5M
C164
10u6.3
R259
12k
R301
4.7k
C617
1000p
IC33
NJM78L05UA
2
COM
3
IN
1
OUT
2
COM
3
IN
1
OUT
2SC3357
Q502
R371
39k
C88
4p
R252
470k
L504
27n
2SA1641(S,T)
Q31
R261
120k
C263
0.033u
C55
0.1u
R36
1.5k
C232
1000p
5C
C514
1000p
R200
680
R103
1k
R258
2.7k
L421
100n
R227
22k
C29
470p
C301
4.7u6.3
C376
1000p
R527
220k
C502
1000p
R350
27k
C220
4.7u6.3
R353
100k
BSB
C163
1000p
C603
1000p
C441
0.5p
R324
0
C458
220p
C257
0.039u
R41
330k
TC401
10p
R416
470
C41
22u10
C268
1u
R229
680k
C361
1000p
C215
0.1u
R606
220
C432
0.3p
R101
47k
R376
100k
C307
0.022u
R166 1k
C45
22u10
C530
0.47u
8C
C319
1000p
C281 1000p
R509
22
C213
3300p
C312 0.1u
R526
150
R37
0
TH301
100k
R514
0
L304
330n
8R
5C
5C
C231
1000p
C233
4.7u6.3
C310
0.33u
C467
1000p
L404
R162
1.5k
R278
12k
C52
1000p
C515
27p
8T
D409 DAN235E
L604
5T
8T
R419
2.7k
R218
82k
C465
22p
R34
4.7k
R521
100
C87
3p
C44
22u10
C372
1000p
C363
0.01u
R268
1k
R359
220k
R319
10k
C456
2p
C507
1000p
R208
1.5k
C459
1000p
R271
3.3k
8T
C34
330u 25
C324
0.01u
C450
22u10
L509
9.5T
R211
82k
R39
470k
Q254
DTC363EU
C366
0.1u
R257
1M
C387
1000p
R426
47k
R233
6.8k
R360
470k
R255
5.6k
C278 0.1u
KTA1664(Y)
Q35
C227
0.01u
R230
220k
R421
1.5k
R351
470
68
5C
R207
*
D404
MA2S304
C54
0.1u
D403
MA2S304
L508
2.5T
C428
470p
8R
69
5M
D608
1SS355
C421
470p
R106 1k
C314
0.01u
34
D602
MA4PH633
R306
270k
L302
330n
CNVSS
C410
10u6.3
C606
0.5p
D303
DAN222
C448
470p
R366
470
R438
22k
R203
100k
R265
5.6k
R308
330k
C311 0.1u
C254
0.22u
C364
1000p
SB
73
R275
15k
R33
47k
R276
47k
R370
56
C36
1000p
R412
10k
D405
MA2S304
2SC4919
Q201
C306
1000p
R273
12k
C205
0.1u
C258
0.01u
C504
1000p
2SC4738(GR)
Q403
C536
1000p
R510
1.5k
2SA1832(GR)
Q402
L501
68n
C384
2p
5M
C350
470p
C274
0.22u
C463
1000p
C151
1800p
D406
MA2S304
5M
R212
82k
L416
R315 18k
C546
0.47u
R800
F501
C403
100p
R520
18k
R605
15k
C519 82p
C383
1000p
R369
0
R444
1k
C101
1000p
R109
1.5k
C39
0.1u
IC66
AT24C64A10SI18
or CAT24WC64JI
1A0
2A1
3A2
4GND 5
6
7
8
D61
02DZ18(X,Y)
L201
R531
47k
R442
100
C272
1000p
R251
47k
R205
820
R409
100k
70
IC402
UPB1509GV
1
2
3
45
6
7
8
D401
MA2S111
R516
0
Q36
KRC102S
R519
33k
C28
220p
C409
0.1u
B
C104
0.1u
C276
1000p
R281
0
R356
1k
5M
R317
10k
C49
0.01u
34
C550
68p
C526
680p
5M
R105 1k
C436
0.75p
L303
330n
R165 1k
R266
5.6k
C266
1u
R425
47k
8R
R435
100
C277
1000p
2SA1745(6,7)
Q33
C557
0.01u
R61
470
R415
0
C161
1000p
C615
22p
L405
8C
R349
47k
R504
270
C371
2p
C414
0.1u
R111
1k
C251
4.7u6.3
R530
1k
R102
47k
D301
MA742
Q32
KRC102S
R511
47
C531
47u25
C38
1000p
D251
MA742
74
C505
1000p
R437
1k
C545
1000p
R325
33k
R533
0
D201
DAN222
5C
C452
470p
D606
MA742
5M
L605
9.5T
C513
1000p
R503
18
C358
1000p
L101
C522
1000p
R86
0
C610
0.5p
C230
0.1u
C308
1000p
R436
120k
C322
56p
C608
27p
71
R277
68k
R164 1k
C460
18p
C271
1200p
CN5
C512
1000p
C402
100p
5C
C616
1000p
C208
0.01u
L301
L34-4554-05
C207
*
IC201
NJM2100V
1
2
3
45
6
7
8
V+
C42
0.01u
69
R430
220
35
C529
1000p
C275
1u
TC402
10p
C455
3p
C61
1000p
D32
1812L110PR
8C
L602
5T
8C
R87
1k
R254
2.7k
89
R434
0
C574
1000p
C554
1000p
R312
47k
C53
1000p
C560
1000p
C613
27p
C576
220p
C265
0.1u
R410
8.2k
R256
5.6k
R81
47k
5C
C51
10u6.3
R123
0
D503
02DZ5.1(Y)
C416
1000p
C378
1000p
C280 47u16
R602
22k
R313
100k
D502
DA221
17
5C
R217
220k
C389
1000p
C302
1000p
R70
47k
L506
9.5T
71
R104
1k
L420
150n
C413
0.01u
C279 4.7u16
R601
22k
R321
22k
D202
1SS372
C351
33p
C228
10u6.3
R413
10k
R502
270
R82
0
C411
0.1u
R314 2.2k
C516
820p
R279
4.7k
C204
2.2u10
87
L352
560n
R220
15k
R310
1k
C326
0.01u
C203
*
C418
1000p
C425
0.1u35
R263
91k
C509
15p
BSB
D501
1SS355
L507
1T
C379
1000p
R221
15k
R151
10k
R379
100k
8C
R407
1.5k
C89
4p
C253
0.22u
C262
1000p
R232
9.1k
R532
0
C518 33p
C423
0.047u35
D607
MA742
R518
33
R513
2.2k
C217
10u6.3
R35
47k
C466
100p
C430 4.5p
C313
15u6.3
C66 1000p
Q34
KRC102S
C40
0.1u
L503
27n
70
C323
270p
R274
15k
R62
0
C273
1u
C611
2p
R512
10
C56
1000p
8R
R417
220k
L417
C510
8p
R525
56k
R364
0
R401 1k
R250
12k
R505
2.2k
R529
470
8R
C406
1000p
R253
0
C267
0.47u
C464
1000p
R231
120k
5M
5M
C360
1000p
C357
0.01u
8T
R152
4.7k
C558
0.01u
D302
DAN222
R433
4.7k
R31
4.7k
C549
220p
C462
10p
R373
47k
R40
390k
L422
56n
8C
Q255
KRC102S
C214
150p
R528
470
C35
1000p
R411
5.6k
C525
1000p
C316
0.1u
R402 1k
D31
ZSH5MA27
R213
330k
R214
68k
C250
0.1u
R272
3.9k
R414
470
C375
1000p
R403 1k
C83
0.1u
C451
470p
C468
220p
C315
0.1u
C424
1u16
L502
68n
IC401
MB15A02
11
12
13
14
15
16
17
18
19
20
C380
100p
L419
100n
R219
180k
R110
47k
C210
0.1u
C454
6p
R443
2.2k
C417
1000p
R441
100
R524
470
Q61
KRC404RTK
8R
R228
10k
C457
1000p
L403
10u
R264
120k
R38
330k
C501
1000p
R352
100
R362
470k
8T
C506
1000p
2
COM
1
IN
3
OUT
R316
22k
C556
1000p
R226
100k
C82
1000p
C362
1000p
R354
330
R249
15k
C503
100p
D408
MA2S111
D402
HZU5ALL
C401
100p
C206
*
R215
68k
C252
39p
8R
C517 3p
C50
0.01u
C255
8200p
C370
1000p
8C
R318
10k
R501
1k
C201
0.1u
C309
0.022u
C283
1000p
C359
8p
C37 1000p
R303
22k
C90
3p
R439
47k
C226
4700p
R365
100k
IC501
TA75W01FU
1
2
3
4
VEE
5
6
7
8
VCC
D605
XB15A709
C152
3900p
C261
0.01u
C431
5p
R368
100k
R506
10k
L351
820n
C202
1000p
R323
120k
C211
820p
C404
15u6.3
R309
3.3k
R507
10
2SC4649(N,P)
Q411
C162
4.7u6.3
R216
270k
R432
1k
R408
10
R262
18k
R204
*
C256
0.018u
R311
33k
C449
470p
C607
2p
C303
4700p
R418
1k
2SC3357
Q501
8C
R431
100k
C102
0.1u
R260
220k
R302
4.7k
R206
100
C30
1000p
R320
10k
C225
1u16
C528
220p
R404
10k
R269
39k
R32
470
R209
240k
C264
0.033u
R280
390
C317
0.1u
R420
1k
R375
100k
C353
0.01u
R440
100
17
5M
C555
5p
R225
150k
C412
10u6.3
R210
18k
C442
10u6.3
C318
0.1u
R428
47k
C25
1000p
C15
100p
R43
820
C33
1000p
C19
680p
C4
100p
D26
B30-2205-05
Q12
UMG3N
D21
B30-2205-05
J1
1
8
R41
56
CP1
R90-0724-05
C35
4700p
D24
B30-2205-05
R54
56
C39
0.1u
D2
C22
1000p
Q6
KRC102S
C40
0.1u
L1
R44
18k
CN1
R21
10k
D30
B30-2205-05
R46
100
D31
1SS355
C27
1000p
R51
0
D3
B30-2205-05
R23
10k
R25
56k
D4
C38
470p
D22
B30-2205-05
C36
1u
D23
B30-2205-05
R10
1.2k
R48
47k
R26
3.9k
D19
B30-2205-05
R49
56
C32
1000p
C24
0.1u
C31
1000p
R42
2.7k
Q10
KRA225S
R47
47k
D25
B30-2205-05
R45
33k
C16
100p
BL
NC
NC
NC
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
NC
50
KI1
51
KI2
52
KI3
53
NC
54
NC
55
NC
56
VDD
57
VDD1
58
VDD2
59
VSS
60
OSC
61
DO (to cpu)
62
CE
63
CL
64
DI (from cpu)
C34
4700p
D29
B30-2205-05
D20
B30-2205-05
R53
0
D27
B30-2205-05
R22
10k
VR1
R31-0646-05
R50
56
C30
0.1u
R52
0
D28
B30-2205-05
R8
1k
R4 1k
R2 100
R3 100
CN1
R7 1k
R5 1k
R8 1k
R6 1k
C13 470p
C14 470p
C10 1000p
C15 470p
R1 0
D3
DA221
D2
DA221
D4
DA221
D1
DA221
CN2
1
2
3
4
5
6
7
D5
DA221
C16 470p
D6
DA221
C19 470p
C17 470p
C18 470p
C20 470p
IC205
BU4S66
1I/O
2O/I
3VSS 4
5
R237
0
R236
10k
C235
1u
PR9
PR1
PKS
SQC
TONE
DTMF
PLLE
NC
NC
GND
CNVSS
EVLLD
BSHIFT
RESET
XOUT
VSS
XIN
VCC
GND
NC
POWER
INT
NC
TX/RX
UL
NC
NC
EEPSDT
EEPCK
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
P1MT
77
MICMT
78 NC
79 8RC
80 8TC
81 NC
82 SBC
83 NC
84 NC
85 NC
86 CM
87 MICKEY2
88 MICKEY
89 VOL
90 TEMP2
91 TEMP1
92 RSSI
93 SQIN
94 AVSS
95 DTMF IN
96 VREF
97 AVCC
98 NC
NC
NC
74
73
5C
R234
0
IC204
BU4S66
1I/O
2O/I
3VSS 4
CONT
5
VDD
C222
0.1u
R224
560
PKD
PKD
5C
R124
47k
R93
6.8k
R92
1k
R94
10k
R91
1k
TH98
100k
C97
1000p
TH97
100k
C98
1000p
87
R127
47k
88
89
C216
39p
IC161
M62363FP
1
2
3
4
5
6
7
8
9
10
11
12 13
14
15
16
17
18
19
20
21
22
23
24
R222
10k
IC203
BA10324AFV
VCC VEE
C209 68p
C165
1u
X401
L77-1944-05
R406
10k
2SC2412K
Q302
C321
68p
8C
5C
5M
88
C475
1000p
C476
1000p
C473
1000p
C400
0.1u
L406
270n
L407
270n
C426
30p
L409
27u
L408
33n
C427
8p
L410
27u
R423
220
C429
1p
R429
270
L411
270n
C434
150p L413
47n
C435
10p
L412
270n
L414
27u
C439
10p
R424
100
L415
27u
C440
11p
L401
L418
33n
C474
1000p
R522
330
R523
39k
C533
100p
L505
15n
C542
12p
C541
12p
C552
22p
C553
3p
C614
*
C623
3p
C602
12p
C605
15p
D603
XB15A709
VR601
47k
R607
330
SQC
PKS
PR1
PR9
5M
68
R125
47k
R119
*
R120
*
R122 0
R121
*
R246
150k
C305
330p
C304
330p
1
2
3
4VCC
5
6
7
VEE
R247
120k
R248
5.6K
C249
4.7u6.3
2SC2412K
Q251
FB
R63
0
D62
MA2S077
1NC
2SUB
3GND 4
VOUT
5
VCC
IC34
BD4732G
1NC
2SUB
3GND 4
VOUT
5
VCC
J1
F1
FB
C282
330u25
2SC5488
Q351
R355
470
C355
18p
C354
4.5p
C356
3p
R358
220
R361
180
C367
150p
R363
330k
C369
3p
L354
50n
L355
50n
D351
HVC376B
C368
27p
R367
100
C373
6p
C374
27p
D352
HVC376B
3SK318
Q352
G1
D
S
G2
3SK318
Q353
G1
D
S
G2
R372
47k
R374
27k
L356
50n
C382
27p
C386
36p
L357
35.5n
D353
HVC376B
D354
HVC376B
C388
7p
C390
9p
C391
16p
C471
10p
S1
W02-3665-05
C128
1000p
R126
47k
L423
R114
47k
5M
D407
1SV278
IC202
BA10358FV
1
2
3
45
6
7
8VCC
2SK1830
Q354
C385
8p
C381
4.5p
2SK3019
Q252
2SK3019
Q253
PD55003TR
Q503
C544
15p
C543
15p
KEC
SPLATTER FILTER
8TC(CPU80)
FM DEMODULATION
OR GATE
W/NI(EVOL1)
TP
5C
8TC
RX VCO
TX VCO
CV
VOTAGE
DROPPED
CHARGE PUMP
MIC AMP/
IDC
TCXO
CURRENT
PROTECTION
IDC
AGC
BUFFER
AMP
BUFFER AMP
TEMPERATURE
COMPENSATION
MIC
CK(CPU54)
TEMPERATURE
COMPENSATION
DT(CPU53)
5M
AUDIO
FILTER
SQIN(CPU93)
WIDE(CPU65)
B
TXD
DT(CPU53)
HPF
RXD
TX-RX UNIT (X57-685X-XX)
OVER VOLTAGE
DETECTION
E
VOLTAGE
REGULATOR
(8C)
W/NO(EVOL2)
RF SWITCH
REVERSE
CONNECTION
PROTECTION
DI
PLLE(CPU3)
NARROW
FROO(EVOL23)
APC CONTROLLER
UL(CPU21)
CK(CPU54)
FINAL AMP
PLLE(CPU3)
8CL
D603,605
8CL
LIPPLE
FILTER
DIGITAL
POTENTIOMETER
TEMPERATURE
COMPENSATION
NARROW(CPU64)
1/2Vcc
D31
TV
RX VCO
MODI(EVOL9)
TX VCO
5M
D351,352
LIMITTER
KDC
PC/TV SW
IF SWITCH
RF BPF TUNING
KEC
PC
D353,354
IF AMP
8T
KEC
Q402,403
Q35,36
APC VOLTAGE
DETECT
D405,406
BEAT
SHIFT
BUFFER AMP
VOLTAGE
DETECTOR
(RESET)
D606,607
8C
D403,404
50,4MHz
ANT SW
ANT SW
D1-4
VOLTAGE
REGULATOR
(5M)
8TC(CPU80)
8RC(CPU76)
D32
CV
D501
DRIVE AMP
8R
RX
8R
IF SWITCH
1,1A
W/NI(EVOL1)
EEPROM
RF AMP
MIC AMP/
SPLATTER
FILTER
5C
MOD
DETECTION
MODULATION
8C
VOLTAGE
DETECTOR
(INT)
1/2Vcc
CPU
DC SW (SB)
8C
AGC/
MIC MUTE
AFV
AF MUTE
AF MUTE
W/NO(EVOL2)
NOISE AMP/
SQL AMP
T/R SW
AFI(EVOL12)
DIVIDER
(HETERO)
VOLTAGE
PROTECTION
PLL IC
KEC
AFM(CPU50)
D407
T/R SW
Q33,34
KEC
8C
SB
OVER VOLTAGE
DETECTION
16.8MHz
BEAT
SHIFT
MOD
LIPPLE
FILTER
RF AMP
VOLTAGE
REGULATOR
(5C)
WIDE
SURGE ABSORPTION
KEC
RF AMP/
DRIVE STAGE
AF MUTE
MOD
BUFFER AMP
SUM AMP
RF BPF TUNING
AF MUTE
MIXER RF AMP
8R
PLL SYNTHESIZER
SEG9
SEG15
SEG7
SEG10
SEG23
SEG3
SEG21
SEG11
COM2
SEG13
COM1
RESISTOR
COM3
SEG24
KEY ILLUMINATION
SEG1
LCD (B38-0885-05)
SEG17
SEG27
SEG29
SEG4
SEG26
SEG31
SEG5
SEG14
SEG18
SEG19
VARIABLE
SEG8
SEG12
SEG2
SEG20
LCD ILLUMINATION
DISPLAY UNIT (X54-3450-10)
SEG22
MR
SEG0
SEG16
COM0
SEG6
SEG28
SEG25
SEG30
POWER
SQC
PKS
PR1
PR9
PKD
8RC(CPU76)
IC252
LA4600
12345678910
PTT
BRI
RXD
POWER
VOL
8C
5C
DO
CL
CE
DI
MICKEY
ENCB
CM
ENCA
MIC
ENCODER
8TC(CPU80)
AMPSW(CPU52)
SPM(CPU51)
BRI
8RC(CPU76)
VOLO(EVOL11)
W/NO(EVOL2)
MIC
PC/TV
LCD CONTROLLER
KEY BACKLIT SWITCH
DIMMER
FUNCTION
SWITCH
LCD BACKLIT
D2-4
LCD BACKLIT SWITCH
DC SWITCH
KEY BACKLIT
D19-30
MHz & MENU
ADJUASTMENT
ON/OFF & VOLUME
ADJUASTMENT
SINGLE
ANALOG SW
SINGLE
ANALOG SW
DC SW (SB)
DC SW (8R)
DC SW (8T)
MOD BUFFA1/2Vcc
DC
AMP
Q201
RF AMP/
DRIVE STAGE
OVER VOLTAGE
DETECTION
SURGE ABSORPTION
D5,6
BRI
CM
MICKEY
VOL
TV
AUDIO AMP
RIPPLE
FILTER
144-148MHz
144-146MHz
TM-271A
TM-271E E
K
M3
M2
M4
X57-685X-XX
0-23
0-10
0-21
0-22
2-71
1
2
3
4
5
6
7
8
9
10 CLK
NC3
DATA
LE
FC
NC4
FOUT
P
NC5
ROSCIN
NC1
OSCOUT
VP
VCC
DO
GND
LD
NC2
FIN
2SC4649(N,P)
Q404 2SK508NV(K52)
Q406
2SJ347
Q407
2SK508NV(K52)
Q405 2SC5108(Y)
Q410
Q408
KRX102U
2SC2412K
Q440
CONT
VDD
2SK1830
Q87
X86
8.00MHz
L78-1409-05
2SK1830
Q86
8
9
10
11
12
13
14
1
2
3
4
5
6
7
2VOLI
2VOLO
BLO
BLI
1VOLI
1VOLO
DO
VDFref
RESET
GND
FRQI
FRQO
PC/TVO
PC/TVI
VDD
LD
CLK
DAT
MODI
MODO
W/NO
W/NI
BRII
BRIO
QT/DQT(CPU1)
1/2Vcc
EVLLD(CPU8)
UL(CPU21)
PLLE(CPU3)
M1MT(CPU76)
XOUT(CPU11)
XIN(CPU13)
TX DTMF
BSHIFT
P9MT(CPU75)
MICMT(CPU77)
TX/RX (CPU20)
W/NO(EVOL2)
W/NI(EVOL1)
MIC
VOLO(EVOL11)
VOLI(EVOL12)
DT(CPU53)
CK(CPU54)
BRI
PLLE(CPU3)
MODO(EVOL10)
PC/TV
UL(CPU21)
PC/TVO(EVOL3)
EVLLD(CPU8)
P9MT(CPU75)
MICMT(CPU77)
MOD
TX/RX (CPU20)
TX/RX (CPU20)
QT/DQT(CPU1)
EVLLD(CPU8)
TX DTMF
UL(CPU21)
PLLE(CPU3)
XOUT(CPU11)
XIN(CPU13)
POWER
M1MT(CPU76)
P9MT(CPU75)
MICMT(CPU77)
CK(CPU54)
DT(CPU53)
W/NO(EVOL2)
PC/TV
W/NI(EVOL1)
MIC
VOLI(EVOL12)
VOLO(EVOL11)
BRI
SQIN(CPU93)
RSSI(CPU92)
SBC(CPU82)
1/2Vcc
DTMF IN(CPU95)
BSHIFT
IC101
30622MAA-B85GP
NC
SQC
PKS
CLKFLS
BSYFLS
TXD
RXD
PTT
NC
NC
NC
EMPFLS
NC
NC
NC
NC
CEFLS
NC
NC
NC
NC
NC
AFM
EEPWP
NC
SPM
AMPSW
DT
CK
NC
DST1
DST2
DST3
DST4
VCC
NC
VSS
ADJ
NARROW
WIDE
NC
NC
CL
CE
DO(to LCD)
DI(from LCD)
NC
ENCB
ENCA
P9MT
99
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
SPM(CPU51)
AMPSW(CPU52)
W/NI(EVOL1)
VOLI(EVOL12)
SW1
SW2
OUT
VCC2VCC1
IN
IN
GND
RD70HVF1-01
Q504
AMPSW(CPU52)
MIC
8TC(CPU80)
SPM(CPU51)
8RC(CPU76)
BRI
PC/TV
VOLO(EVOL11)
W/NO(EVOL2)
2SC2412K
Q301
8
9
10
11
12
13
14
IC251
BA10324AFV
DTMF IN(CPU95)
INT(CPU18)
RESET(CPU10)
SBC(CPU82)
1/2Vcc
SQIN(CPU93)
INT(CPU18)
RESET(CPU10)
SBC(CPU82)
IC35
BD4740G
IC31
KIA7808AF
IC32
NJM78L05UA
AMPSW(CPU52)
VOLO(EVOL11)
SPM(CPU51)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Func
CALLVFO
REV
CM
HOOK
MIC
ME
PTT
GND
8C
MBL(Key A)
ENCODER A
CM
ENCODER B
MIC KEY
DI(from LCD)
CE
CL
DO
5C
8C
VOL
POWER
RXD
BRI
PTT
GND
ME
MIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SDA
SCL
WP
VCC
SQIN(CPU93)
SBC(CPU82)
RESET(CPU10)
INT(CPU18)
1/2Vcc
DTMF IN(CPU95)
RSSI(CPU92)
IC301
TK14489V
SCAN
SCAN
SQLIN
FLAMPO
RFIN
GND
Hy_C
FLAMPI
RSSI
AFO
VCC
IF_IN
DEC1
DEC2
PH_S
QUCO
OSC(B)
OSC(E)
NC
MIX_O
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
2SB1132(Q,R)
Q9
IC3
LC75854W
or
PT6554LQ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 SEG28
SEG29
SEG30
SEG31
NC
NC
NC
COM0
COM1
COM2
COM3
KS1
KS2
NC
NC
NC
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG20
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
C203
0.027u
0.027u
0.047u
0.027u
0.027u
1000p
1000p
680p
1000p
C206
1000p 0.022u
0.022u
0.022u
0.022u
C207
0.039u
NO
C614
3p
NO
NO
NO
0
0
R119
0
NO
00
0
NO
R120
NO
NO
0
R121
0
NO
NO
NO
10k
18k
R204
18k
18k
18k
1M
750k
750k
750k
750k
R207
XF351
49.95MHz
L71-0620-05
CF301
L72-0993-05
CF302
L72-0999-05
C259
0.01u
C260
0.01u
C270
4.7u6.3
R55
0
R:3.22V
R:4.65V
T:1.6V
R:4.02V
R:4.27V
T:4.16V
R:13.8V
T:13.45V
T:1.45V
R:0.66V
T:0.48V
R:4.98V
R:2.7V
R:7.9V
R:13.8V
T:0.82V
N:5V
W:0V
T:1.23V
R:2.46V
R:4.98V
R:1.8mV(BS OFF)
5V(BS ON)
T:7.55V
R:4.98V
R:7.99V
R:4.92V
T:3.9mV
R:13.66V
T:12.94V
R:7.04V
R:7.42V
R:4.90V
R:0.74V
T:0.62V
R:4.31V
R:3.37V
R:6.11V
R:6.17V
R:4.84V
T:5.73V
4.98V
R:7.9V
R:0.75V
R:1.15V
R:0.71V
R:0.56V
R:3.37V
R:4.7mV(SQ OFF)
4.97V(SQ ON)
R:2.48V
R:1.44V
R:7.7V
R:6.34V
R:6.64V
R:4.98V
N:0V
W:5V
T:1.26V
R:1.74V
T:6.8V
R:3.3V
T:0.88V
4.97V
R:4.98V
R:6.96V
T:6.8V
T:7.82V
R:0.97V
R:7.9V
R:4.96V
T:0.76V
T:7.84V
R:1.23V
R:7.95V
R:2.8mV
R:0.1mV
R:0.76V
R:4.05V
R:7.98V
R:5V
R:7.01V
R:2.7V
7.30V
7.90V 7.10V
4.96V
4.94V
4.96V
5.02V
R:7.84V
T:5.61V
T:2.5V
T:1.46V
T:7.85V
R:0.87V
T:4.97V
R:2.88VR:5.86VR:3.16V
7.90V
T:7.84V
4.80V(BRIGHTNESS MAX)
0V(BRIGHTNESS OFF)
TM-271A/271E
38
Q440
2SC2412K
DT
P1
M
IC202
BA10358FV
SB
D201
DAN222
D202
1SS372
KI1
IC20
3
BA1032
4
(3/4
)
IC203
BA10324AFV
(1/4)
D/A
CONV
MIC KEY
M
PLL
E
TCXOMOD
AGC
DET
TX-RX UNIT (X57-685X-XX)
CK LOOP
FILTER
KS1
8C
ELV
BUF
MIC
MUTE
CE
8CL
IC201
NJM2100V
PLL IC
8R
C
CK
RF
SB
C
SUM
SW
5C
CM(MIC KEY2)
DI
V
MIC
8C
LIPPLE
FILTER
D2~4
B30-2205-05
KEY BACK LIGHT
ENCA
SW
BS
H
KS2
RXD
HOOK(RXD)
AGC
DTMF
Q201
2SC4919
VC
O
Q403
2SC4738(GR)
TCXO
D/A
CONV
WI
D
POWER
NA
R
MIC
IC161
M62363FP
(3/8)
CHARGE
PUMP
CHARGE
PUMP
16.8MHz
IC161
M62363FP(8/8)
8TC
BRI
SQIN
8C
CM
SPLATTER
FILTER
8C
8C
MIC KEY
MIC/IDC
Q404
2SC4649(N,P)
16.8MHz
MI
C
PTT(TXD)
DO
ENCB
KI3
ME
Q407
2SJ34
7
IC401
MB15A02
LD
DT
VOL
T
CV
5C
Q402
2SA1832(GR)
CL
KI2
DT
M
Q10
KRA225S
5C
Q6
KRC102S
V
PLLE
DISPLAY UNIT (X54-3450-10)
Q
2SK5
0
MICMT
D19~30
B30-2205-05
LCD BACK LIGHT
Q9
2SB1132(Q,R)
Q12
UMG3N
SW
MBL
BRI
IC3
LCD DRIVER
LC75854W/
LC75854W/
CL
CE
DI
COM0~3
SEG0~31
MBL
DO
LCD
GND
ME
MIC
Q1
2SK1824
X401
QT/
D
TX/
R
SP
M
AF
M
AM
P
PTT(TXD)
Func
CALL
VFO
REV
MR
KI1
KI2
KI3 KS2
KS1
SQC
PKS
PR1
PR9
PKD
VR1
R31-0649-05
VIARIABLE RESISTOR
POWER
D/A
CONV
IC161
M62363FP
(4/8)
P9MT
P1MT
PKD1200
PKD9600
VOL
P9
M
QT/DQT
PKD9600
IC205
BU4S66
SW
IC204
BU4S66
SW
ENCB
MHz
ENCA
S1
W02-3665-05
ENCODER
PKD1200
BLOCK DIAGRAM
TM-271A/271E
39
BLOCK DIAGRAM
DT
Q33
2SA1745(6,7)
CF302
(NARROW)
D303
DAN222
P1MT
SW
8TC
AVR
5V
X351
49.95MHz
8RC
OVER
VOLTAGE
DETECT
IC66
AT24C64A10SI18 or
CAT24WC64J1
RF
IC402
UPB1509GV
DIVIDER
D302
DAN222
PC
ANT
Q87
2SK1830
IC203
BA10324AFV
(3/4)
BUFF
Vg
V
BUFFER
D301
MA742
PLLE
INT
Vg
450kHz
SW
BPF
IC252
LA4600
NOISE
D/A
CONV
IC501
TA75W01FU
(1/2)
IC501
TA75W01FU
(2/2)
WIDE
ANT SW
ELVLLD
SW
POWER
PRE
DRIVE
AMP
RF
BUFF
Q351
2SC5108(Y)
VCOMOD
C
L
SW
CF301
(WIDE)
D351,352
HVC376B
8RC
CK
IC251
BA10324AFV
Q353
3SK318
SBC
TXRX
8C
IC31
KIA7808AF
AVR
8V
TEMP2
MIX
SW
5M
AF
FILTER
TX
VCO
SW
Q411
2SC4649
(N,P)
Q410
2SC5108(Y)
SW
8T
8CL
D353,354
HVC376B
5C
BSHIFT
BSHIFT
8R
SW
SW
Q504
RD70HVF1
E
Q35
KTA1664(Y)
D607
MA742
D606
MA742
50.4MHz
B
DET
SW
8R
IC32
NJM78L05UA
5M
SW
VCOMOD
R
)
WIDE
NARROW
EEPROM
Q252,253
2SK3019
8R
RESET
NARROW
D/A
CONV
IC33
NJM78L05UA
AVR
IC161
M62363FP
(7/8)
3
FP
BPF
Q36
KRC102S
Q254
DTC363EU
IC161
M62363FP(2/8)
8T
Q406
2SK508NV(K52)
IC35
BD4740G
5C
RESET
X86
IC161
M62363FP
(5/8)(6/8)
IC161
M62363FP
(1/8)
IC34
BD4732G
DTMF/BEEP
8TC
SQIN
Q32
KRC102S
SBC
Q251
2SC2412K
PTT
FINAL
AMP
8C
SPM
MICMT
SIGNAL Q34
KRC102S
8T
DRIVE
AMP
SB
+B
IF
DEMODULATOR
AF
PA
AFM
SW
CPU
IC101
30622MAA-B85GP
MCF
INT
Q407
2SJ347
D602
MA4PH633
D603,605
XB15A709
SW
8T
8T
Q61
KRC404RTK
Q302
2SC2412K
TRIPLER
INT
TEMP1
APC
CONTROL
SW
RXD
TCXOMOD
D/A
CONV
CM
CV
R
)LPF
8R
POW.
DET
POW.
DET
SW
D/A
CONV
RF
Q503
PD55003
Q408
KRX102U
Q86
2SK1830
T/R
SW
HPF
DTMF
5M
Q301
2SC2412K IF
Q501
2SC3357
D409
DAN235E
EXT.
SP
16.8MHz
Q352
3SK318
Q31
2SA1641(S,T)
RX
VCO
RF BPF
TUNE
RF BPF
TUNE
8R
SP
Q502
2SC3357
Q405
2SK508NV(K52)
EEPWP
EEPCK
EESDT
IC301
SW
Q255
KRC102S
AMPSW
Q354
2SK1830
SW
8T
QT/DQT
TX/RX
SPM
AFM
AMPSW
CL
CE
DI
RSSI
SQIN
8C
8M
PKS
SQC
ENCA
ENCB
VOL
P9MT
DO
MICKEY2
MICKEY
RESET
TM-271A/271E
40
LEVEL DIAGRAM
To make
G2
Q351
3
IC201 IC203
Q353 XF1
7
IC202 IC202
BPF BPF
68
Q406
ANT
X54-345
G2
91
To make measurements in the RF section, connect the RF level meter
.
In the RF section, use a 0.01µF coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SIN
A
1
G1
22
S
Q352
10
Display
Unit
D
IC161
TX-RX
U
MIC
To make measurements in the AF section, connect the AC level meter.
AG is set so that MIC input becomes 3kHz/1.5kHz (Wide/Narrow) DEV at 1kHz MOD.
D
CF1
/CF2
450kHz
7
IC203
TX-RX Unit
S
IC301
5
49.95MHz
9
IC201
G1
20
1
Center Frequency
W: –124.0dBm
N: –123.5dBm
W: –119.5dBm
N: –119.0dBm
W: –104.7dBm
N: –103.7dBm
W: –103.9dBm
N: –103.4dBm
W: 0.75Vrms
N: 0.36Vrms
W: 0.30Vrms
N: 0.18Vrms
W: –112.3dBm
N: –111.5dBm
W: –92.1dBm
N: –90.7dBm
W: –77.6dBm
N: –74.2dBm
W/N
5.0mVrms (2.0mVrms for E-type)
W/N
0.12Vrms
W/N
1.40Vrms
W/N
1.16Vrms
W/N
1.26Vrms
W/N
1.04Vrms
Receiver Section
Transmitter Section
TM-271A/271E
41
LEVEL DIAGRAM
S
To make measurements in the RF section, connect the RF Wattmeter (50Ω).
D
Q504
To make measurements in the AF section, connect the AC level meter.
(ANT input : –53dBm, 1kHz FM, 3kHz DEV (Wide)/1.5kHz DEV (Narrow))
The AF output level is adjusted for a 0.64V/8Ω by the front panel AF VOL control.
Q406
v
el meter.
1
2dB SINAD.)
TX-RX Unit
Q410
1
11
Q411
FINAL Amp
Q503
2
D409
TX-RX Unit
S
IC402
Audio Frequency
Q501
D
TX-RX Unit (VCO)
CF1
/CF2
450kHz
Q502
G
IC301
D602
G
ANT
–5.3dBm –10dBm –4.8dBm 12.5dBm 26.5dBm–8.8dBm 60W
W: –85.0dBm
N: –84.5dBm
W/N
0.33Vrms
W/N
0.32Vrms
W/N
0.26Vrms
W/N
0.30Vrms
W/N
0.31Vrms
W/N
10mVrms
W/N
0.50Vrms
W/N
0.64Vrms
14 J1
IC161
12
Q251
8
912
8ohm
10
IC251
7
IC252
IC251
51
IC251IC251
1113
KENWOOD CORPORATION
2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan
KENWOOD U.S.A. 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.
Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium
KENWOOD ELECTRONICS FRANCE S.A.
13, Boulevard Ney, 75018 Paris, France
KENWOOD ELECTRONICS U.K. LIMITED
KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB 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
TM-271A/E
SPECIFICATIONS
GENERAL
Frequency Range
TX ............................................................................................ K,M4 : 144~148MHz E : 144~146MHz M2,M3 : 136~174MHz
RX ............................................................................................ K,E,M2,M3 : 136~174MHz M4 : 144~148MHz
Mode .......................................................................................... F3E (FM)
Antenna Impedance .................................................................. 50Ω
Usable Temperature Range ...................................................... –20°C~+60°C (–4°F~+140°F)
Power Supply ............................................................................. 13.8V DC±15% (11.7~15.8V)
Grounding Method .................................................................... Negative ground
Current
Transmit (max.) ...................................................................... K,E,M2,M3 : 13A or less M4 : 8A or less
Receive (at 2W output) ......................................................... 1.0A or less
Frequency Stability (–20°C~+60°C) ......................................... Within ±2.5ppm
Dimensions (W x H x D projections not included) ..................... 160 x 43 x 137 mm / 6-5/16 x 1-11/16 x 5-13/32 inch
Weight ........................................................................................ Approx. 1.2kg / 2.6lb
RECEIVER
Circuitry ....................................................................................... Double conversion superheterodyne
Intermediate Frequency (1st / 2nd) ............................................ 49.95MHz / 450kHz
Sensitivity (12dB SINAD) ............................................................ Wide : 0.18µV or less Narrow : 0.22µV or less
Selectivity
–6dB ........................................................................................ Wide : 12kHz or more Narrow : 10kHz or more
–60dB ...................................................................................... Wide : 30kHz or less Narrow : 24kHz or less
Squelch Sensitivity ..................................................................... 0.1µV or less
Audio Output (8Ω, 5% distortion) .............................................. 2W or higher (5% distortion)
Audio Output Impedance ........................................................... 8Ω
TRANSMITTER
Power Output
High ......................................................................................... K,E,M2,M3 : 60W M4 : 25W
Low ......................................................................................... K,E,M2,M3 : Approx. 25W
Modulation .................................................................................. Reactance modulation
Spurious Emissions .................................................................... –60dB or less
Maximum Frequency Deviation ................................................. Wide : ±5kHz Narrow : ±2.5kHz
Audio Distortion (at 60% modulation) ........................................ 3% or less
Microphone Impedance ............................................................. 600Ω
Note : All specifications (General,
Transmitter and Receiver) are guaran-
teed within the amateur radio band.
Guarantee K,M2,M3,M4 E
frequency range 144~148MHz 144~146MHz

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