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TECHNICAL MANUAL
FOR
MODEL 844
FM MODULATION AND
STEREO MONITOR
STEAM POWERED RADIO.COM
P/N 5004-0844 Rev C
October 16, 1985
Equipment Serial No .
Shipping Date
------------
TECHNICAL MANUAL
FOR
MODEL 844
FM MODULATION AND
STEREO MONITOR
Inc.
3090 Oakmead Village Drive
Santa Clara, CA 95051
(408) 727-7272 TWX 910-338-0584
T F T
STEAM POWERED RADIO.COM
TABLE OF CONTENTS
SECTION 1
GENERAL INFORMATION
1.1
1.2
1. 3
1. 3 .1
1. 3. 2
1.4
1.5
SECTION 2
3
3
5
5
6
6
6
INSTALLATION
2.1
2.2
2. 3
2.4
2.4.1
2.4.2
2.5
SECTION 3
General Description
Spec if i catio ns
Accessory Equipment
Model 730A SCA Monitor •
Model 804 Remote Metering Panel
Warranty . • . . .
Claim for damage in Shipment
Unpacking and Inspection . . . .
Power Requirements
. . . . .
Insta llatio n and Connections
Connection of Accessory Equipment
Connection of Model 730A SCA Monitor .
Connection of Model 804 Remote Metering
Panel . . . . . . . . .
Field Insta llatio n of Options . . . . .
7
7
7
7
8
.
8
8
OPERATION
3.1
3.2
3.3
3.3.1
3.3.2
3.4
3.4.1
3.4.2
3.5
3.5.1
3.5 . 2
3.5.3
3.5.4
3.5.5
3.5.5 .1
3.5.5 .2
3.5.6
3.5.7
3.5.8
3.5.9
3.5 . 10
3. 5.11
3.5.1 2
3.5.1 3
3.6
3.7
3.8
STEAM POWERED RADIO.COM
..
.
General .
. . . .
.. .
Turn-On and Warm-Up . . . . . . . .
Contr ols, Connectors and Indic ators .
Model 844 Front Panel
Model 844 Rear Panel
Calib ration .
. ... .....
Meter Calib ration . . . .
Peak Modulation Calib ration . .
.
Measurements .
.. ..
Main Channel Modulation (L + R)
.
Stereo Subchannel Modulation (L - R).
Pilot Carri er Modulation
38 KHz Subcarrier Suppression
.
Stereo Separation . . . .
Stereo Channel Separation (Left Channel
Modulated)
.... . . . .
Stere o Ch anne 1 Separation (Right Channel
Modulated)
. . . . . .
Main Channel to Subca rrier Crosstalk
Subcarrier to Main Channel Crosstalk
FM Noise
Disto rtion . . . . . .
Pilot Frequ ency . . . .
Peak Modulation
. .
Incid ental And Residual AM
Multipath Noise . . . .
. . ....
Absence of Modulation Alarm (Opti onal) . .
Carri er Failu re Alarm (Optional). . . .
Use of Remote Metering Panel. Model 804
..
.
.. .
.
. .....
-2-
9
9
9
9
12
13
14
14
14
14
14
15
15
15
15
16
16
16
17
17
17
18
18
18
19
19
19
SECTION 1
GENERAL INFORMATION
1.1
General Description
The TFT Model 844 FM Modulation stereo monitor
provides both on-the-air and off-the-air monitoring of FM broadcast
stations operating in the frequency range of 88 to 108 MHz.
The three meter format allows stereo measurements
while monitoring total modulation, Left and Right channels. Push
button switches allow monitoring of the following functions on the
LEFT/TEST Meter: left Channel, Right Channel, 38 kHz, 19 kHz pilot,
L+R, l-R, Total modulation, AM noise, and multipath.
Front panel indicators show when a preset
modulation percentage is exceeded on either positive or negative
peaks.
Front panel controls allow the monitoring of two
different frequencies without resetting.
Absence of modulation and carrier failure alarms
are available as options.
1.2
Specifications
RF SECTION
Frequency range . . . . .
On-site RF input voltage
Antenna input voltage
Tuning . . . . . . . . .
AGC range . . . . . . . .
Input impedance, antenna
Input connector, antenna
88-108 MHz, tunable in 50 KHz steps
. 1 to 10 volts rms
250 uV to lOOmV
Two 4-digit switches and a pushbutton switch for selecting station
A or 8 •
. 60 dB
75 ohms
. Type F
MODULATION METERS, TOTAL
Deviation for 100% indication
Meter Range . • . . . • •
AC Voltmeter range .
Accuracy (5-KHz tone)
Frequency response
Characteristics .
Remote output .
. + 75 KHz peak to peak
. U to 133% modulation
. Oto -50 dB in 10 dB steps
. + 2% at all modulation levels
+ 0. 1 dB typical,+ 0. 25 dB max from
50 Hz to 120 KHz Quasi-peak reading circuit
Suitable for driving remote readout
meter panels.
-3STEAM POWERED RADIO.COM
MODULATION METERS, RIGHT
Right channel modulation
Indicates and measures right channel
modulation
MODULATION METER, LEFT/TEST
Left channel modulation.
. • Indicates and measures left channel
Modulation
. Same as r i ght modulation meter
Right channel modulation
. Same as total modulation meter
Main channel . . • .
• + 0.35 dB, 50 Hz to 15 KHz
L+R• • • •
. + 0.35 dB, 23 KHz to 53 KHz
L - R • • • •
38 KHz 1eve 1• • • • • • • • • . • Neasure down to -60 dB
• Measure down to -60 dB
Pilot level • .
. For optimization of stereo
Phase calibration .
measurements
• . Measures AM noise
AM noise . . • .
. For adjustment of antenna to minim i ze
Multipath indicator
multipath distortion
PEAK MODULATION INDICATORS
Deviation for 100% indication • • + 75 KHz
. ~et by a front panel 3-digit thumbPeak level . • . •. . . . .
wheel switch in 1% steps from 0% to
199% on both positive and negative
peaks
• + 2% at 100% modulation
Accuracy (5-KHz tone) . .
. + 2% from 30 Hz to 120 KHz
Frequency response
Response time accuracy . . •• . Adjustable, 10 cycles of 10 KHz or
faster
Suitable for dr i ving two remote meter
Remote flasher output
panels
• Registers number of peaks per minute
Peak counter
MODULATION CALIBRATOR
Built in frequency synthesized calibrator for meter and peak flasher
calibration of 100% modulation from the front panel . Accuracy .:!:_1% .
MEASUREMENT OF RESIDUAL AM
Range . . . . • . . • . .
Accuracy (at -30dB) . . . .
OUTPUTS, FRONT AND REAR PANEL
Main channel output with
75 sec de-emphasis
*Signal to noise ratio . . .
*Harmonic distortion . . . .
*Intermodulation distortion
*Frequency response . . . .
STEAM POWERED RADIO.COM
. 0 to 70 dB
• +
1 dB
5 volts rms into 5K ohms at 400 Hz
• 78 dB at 400 Hz with de-emphasis
. 0. 1% max (de-emphasized)
• 0. 1% max per SMPTE standard
+0 . 25 dB f rom 30 Hz to 120 KHz
composite
- 4-
*Balanced audio output level . . .
*Balanced audio frequency
response . . . . . . . .
.
SCA output at rear panel
Audio (with de-emphasis)
.
left and right . . . . •
0 dBm into 600 ohms.
+0.5 dB from 30 Hz to 120 KHz
T volt rms into 600 ohms
1 V RMS. 600 ohms unbalance at 100%
modulation (400 Hz)
Audio (without de-emphasis)
left and right
. 1 V RMS. 600 ohms unbalanced at 100%
modulation.
600 mV RMS. available on front panel
Pilot carrier (19 KHz).
5
V RMS, lOK ohms at 100% modulation
Composite . .
.
For
Model 804 remote meter panel
Remote meter
BNC
Connectors
Main meter selected signal available
Meter output
on front panel.
Carrier-failure alarm. optional . Relay drive output capable of sinking
50 mA to 30 V DC when RF carrier
drops below 50% of nominal.
Absence of modulation
An output capable of sinking 50 mA at
alarm, optional . .
30 V DC when composite signal drops
below 30% modulation for a period of
time between 2 sections and 1 minute.
internally adjustable.
STEREO SEPARATION AND CROSSTALK
Separation L-to-R and R-to-L .
Crosstalk (L+R) to (L-R)
or (L-R) to (L+R) • • .
Crosstalk SCA to (L+R)
or SCA to (L-R) . . . •
Pilot carrier measurement
level accuracy . . . .
MECHANICAL AND ENYIR0tf4ENTAL
Input power . . . . .
Operating temperature
Size . . . . .
Net Weight
Shipping weight .
60 dB typical, 55 dB minim um,
50 Hz to 15 KHz
. 65 dB min
70 dB min
+0.5% from 6% to 12% injection
117/230 +10% VAC, 50 to 400 Hz.
40 watts-max
. 0°C to 50°C (32°F to 122°F)
. 7" (17.78cm) high x 19" (48.26cm)
wide x 15" (38.10cm) deep
. Approximately 18.5 pounds (8.4 Kg)
Approximately 22.5 pounds (10. 2Kg)
1.3
Accessory Equipment
1.3. 1
Model 730A SCA Monitor
The Model 730A enables FM stations broadcasting SCA
information on the carrier to meet all FCC SCA requ irements. The model
844 provides a composite input to the mod e l 730A.
STEAM POWERED RADIO.COM
-5-
Model 804 Remote Metering Panel
1.3.2
The Model 804 duplicates flasher and meter readings
and comes with 50 feet of cable (TFT Part No. 51160-0804)
Warranty
1.4
TIME &FREQUENCY TECHNOLOGY, INC., warrants each of
the instruments of its manufacture to be produced to meet the
specifications delivered to the BUYER; and to be free from defects in
material and workmanship and will repair or replace, at its expense,
for a period of one year from the date of delivery of equipment, any
parts which are defective from faulty material or poor workmanship.
Instruments found to be defective during the
warranty period shall be returned to the factory with transportation
charges prepaid by BUYER. It is with respect to any nonconforming
equipment and parts thereof and shall be in lieu of any other remedy
available by applicable law. All returns to the factory must be
authorized by the SELLER, prior to such returns. Upon examination by
the factory, if the instrument is found to be defective, the unit will
be repaired and returned to the BUYER, with transportation charges
prepaid by SELLER.
Transportation charges for instruments found to be
defective within the first thirty (30} days of the warranty period will
be paid both ways by the SELLER.
Transportation charges for warranty returns,
wherein failure is found not to be the fault of the SELLER, shall be
paid both ways by the BUYtR.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED.
NOT LIABLE FOR CONSEQUENTIAL DAMAGES.
TFT IS
Claim for Damage in shipment
1.5
Your instrument should be inspected and tested as
soon as it is received. The instrument is insured for safe delivery.
If the instrument is damaged in any way or fails to operate properly,
file a claim with the carrier, or if insured separately, with the
insurance company.
WE SINCERELY PLEDGE OUR IMMEDIATE AND FULLEST COOPERATION TO ALL USERS
OF OUR PRECISION ELECTRONICS INSTRUMENTS.
PLEASE ADVISE US IF WE CAN ASSIST YOU IN ANY MANNER.
T FT
Inc.
3090 Oakmead Village Drive
Santa Clara, CA 95051
(408) 727-7272
-6STEAM POWERED RADIO.COM
SECTION 2
INSTALLATION
2.1
Unpacking and Inspection
Upon receiving the instrument, inspect the packing
box and instrument for signs of possible shipping damage. After
installation, operate the instrument in accordance with the procedures
of Section 3 of this manual. If the instrument is damaged or fails to
operate properly, file a claim with the transportation company, or with
the insurance company if insured separately.
2.2
Power Requirements
The model 844 is factory wired to operate, from
either a 117 volt or 230 volt source. The line frequency must be
between 50 and 400 Hz. Maximum Power required is 40 watts.
2.3
through J13.
operation.
Installation and Connection
(A) Mount the Model 844 in the equipment rack.
(B) AC Power is applied to rear of the unit
Either 117 VAC or 230 VAC are required for proper
CAUTION
THE CIRCUIT BOARD BELOW THE FUSE IN Jl3 MUST READ THE VOLTAGE TO BE
USED AS PRIMARY POWER. 117 VAC OR 230 VAC. THIS BOARD MAY BE REMOVED
AND TURNED FOR PROPER VOL TAGL
CAUTION
FUSE VALUES DIFFER AT THE VARIOUS OPERATING VOLTAGES AND MUST BE
CHANGED WHEN CHANGING INPUT POWER CONNECTION IN Jl3 .
(C) For
to low level RF input Jll on
{D) For
RF high level input (1 to 10
rear panel . Adjust RF input
continuous monitoring, connect FM
monitor rear panel.
off air {high Level) measurements
V RMS) to high level RF input J12
set until green LED on rear panel
NOTE
HIGH LEVEL INPUT REQUIRES PROPER CRYSTAL TO BE INSTALLED IN THE
MONITOR
2. 4
Connection of Accessory Equipment
-7-
STEAM POWERED RADIO.COM
antenna
connect
on 844
is on.
2.4.1
Connection of Model 730A SCA Monitor
Connection to Model 730A SCA Monitor is made by
taking composite output at J4 (to SCA Monitor) and applying to the
Model 730A.
2.4.2
Connection of Model 804 Remote Metering Panel
Connection to Model 804 Remote Metering Panel is
made to TBl on 844 Rear Panel.
2.5
Field Installation of Options
TO BE PUBLISHED.
-8STEAM POWERED RADIO.COM
SECTION 3
OPERATION
General
3.1
The Model 844 FM Modulation and Stero Monitor
to
enables FM statio n personnel to monitor FM and Stereo Transmissions
the
comply with FCC rules and regula tions. The monitor provides all
formance
test functi ons requir ed for modulation and stereo proof-of-permance
tests. When used with model 730A SCA Monitor SCA proof-of-Per
test may also be made.
Monitor displa ys the modulation percentage of the
e a
select ed carrie r being monitored. Two front- panel LED s sprovid
set
pre
a
exceed
tage
percen
ation
modul
flashi ng indica tion when the
l can
channe
left
and
Right
.
peaks
ve
limit on either positi ve or negati
of
any
r
monito
can
meter
EST
LEFT/T
the
be monitored simultaneously or
r.
monito
the other test functi ons of th
1
Turn-On and Warm-Up
3.2
The monitor contains no On-Off switch, and is on
tions
whenever it is plugged into the appropriate power source . Indica
the
of
One
2)
.
on
lights
Meter
1)
of the unit having power on are
two green channel select LED's on. 3) Peaks/Min digita l readout on.
3.3
Controls, connectors and Indica tors
3.3. 1
Model 844 Front Panel
1.
Function
Name
Ref. No.
TOTAL MODULATION meter
11
11
3.
PEAK CAL I adjust
-
peaks 1amp shows
whenever the negative
modulation peaks exceed the
percentage which the thumbwheel switchs has been set .
-
11
and +
Calibr ate the
peak lamps on point.
11
-9STEAM POWERED RADIO.COM
Indica tes modulation
percentage of carrie r being
monitored.
11
PEAKS lamp
2.
(See Fig . 3-1)
-
11
11
11
11
+ 11 peak 1amp shows whenever
4.
"+" PEAK l amp
5.
ThlJTlbwheel switches
Sets the percent of
modu 1at ion at which the "+"
and 11 - 11 peak 1amps on point.
6.
PEAK/MIN counter
Counts the number of times
the peak lamps on over a
given period.
7.
LEFT/TEST meter
Indicate s the function
switched in by the LEFT/TEST
METER function switche s.
Input to this meter is
always applied through a
selected attenua tor.
Measurements can be made
down to 70 dB below 100%.
8.
RIGHT Channel meter
Indicate s right channel
modulation independent of
selected function switch
position .
9.
RIGHT OUTPUT jack
Right channel signal
supplied to front panel BNC
jack.
10.
LEFT/TEST OUTPUT jack
Signal selected by
LEFT/TEST METER function
switches is supplied to
front panel BNC j ack.
11.
STEREO PILOT lamp
Lights when 19 KHz pilot
signal is present.
12.
LEFT/TEST METER function
Selects the function and
attenuat ion to be indicate d
on the LEFT/TEST METER up to
four switches may be in uses
the positive modulation
peaks exceed the percentage
which the thumbwheel
switches has been set.
at a time.
or 11 - 11 select
positive or negative
modulation peaks.
2) Deemph switches in the
deemphassis circuit.
1)
-10STEAM POWERED RADIO.COM
11
+ 11
3) Attenuation switches
from odb to -50 (100% to
.3%) inserts the attenuatio n
marked resulting in the
algebraic sum of signal and
attenuatio n .
4) Signal select provides
the selected signal to the
meter.
13.
METER CAL adjust
Used to calibrate the all
three meters to 100%
modulation.
14.
PHASE CAL adjust
When the phase cal switch is
depressed the phase cal
control can be adjusted for
a null on the LEFT/TEST
meter. To indicate that the
internal 38 KHz signal is in
phase with the 19 KHz pilot
signal. This insures that
the best channel separatio n
has been attained so that
the best stereo measurements
can be made.
15.
ANT INPUT LEVEL
Indicates the level of the
RF from the antenna on the
total modulation meter.
(Push to read switch).
16.
PEAKS/MIN RESET
Resets the peaks min
counter.
17.
CHAN SELECT switch
Allow selection of one of
the two channels selected by
the programmable thLJTibwheel
switches .
18.
Channel Indicator 1ights
Lighted lamp indicates which
frequency has been selected.
Read thumbwheel switches.
19.
FREQ ADJ
Control to adjust the
frequency of the 9.80 KHz
oscillato r circuit.
20.
FREQ COUNTER
Selects from 3 frequencies
which can be supplied to the
freq. counter BNC on front
panel: 1) 900 KHz,
2) 9.80 KHz and 3) 19.0 KHz.
-11STEAM POWERED RADIO.COM
21.
FREQ. COUNTER jack
BNC connector suppli es
select ed frequency for
connection to a frequency
counte r.
22.
Th umbwhee l switches
The two rows of thumbwheel
switches allow of two
channels.
Model 844 Rear Panel
3.3.2
Ref. No.
(See Fig. 3-2)
Function
Name
23.
RF INPUT-LOW LEVEL jack
Used to connect an antenna
input with signal level
between 10 and 100 MV (75
ohm)
24.
HI LEVEL RF INPUT SET Lamp
Lamp indica tes when the high
level RF input level has
properly been adjusted .
25.
RF INPUT-HIGH LEVEL jack
Used to connect signal input
with level between 1 Volt to
10 Volts. (50 ohms)
26.
HIGH LEVEL RF INPUT SET
control
Control adjust s attenu ation
to the high level RF input
for proper operat ing level .
27.
FUSE and AC VOLTAGE SET
Fuse holder and terminal
board which allows settin g
of AC input voltage to 120
VAC or 240 VAC.
28.
AC POWER CORD CONNECTOR
Connect 120 VAC or 240 AVG
to monitor.
29.
High level operating
frequency
Shows the RF input - high
level preset frequency (To
change this frequency, a
intern al crysta l must be
replaced for high level
input only) .
30.
COMPOSITE jack
Allows connection of the
composite signal to external
monitoring.
31.
To SCA Monitor jack
Provides composite output to
drive a model 730A SCA
monitor.
_12STEAM POWERED RADIO.COM
32.
MAIN CH. DE-EMPHASIS
Provides composite output
which has been passed
through a 75 s de-emphasis
network for external
monitoring.
33.
75us DE -EMPH Switch
Allows the 75us DE-EMPHASIS
circuit to be switched into
the LEFT and RIGHT channel
demodulated output.
34.
RIGHT AND LEFT output, TB3
Provides demodulated left
and right channel
informa tion.
35.
Composite and alann
outputs , TB2
Provides a balanced
composite out signal and the
outputs for the optional
alarm circuits .
36.
Remote meter outputs, TBl
Provides flasher and
meter ing data for the Model
804 Remote Metering Panel.
37.
EXT COMPOSITE IN Jack
Provides metering
capabil iti es for mon i toring
an external composite signal
(8Vpp)
38.
Composite level Control
Adjust the Level of the EXT
Composite Input.
39.
Composite Select Switch
Select internal External
Composite Signal to be
applied to the metering
circuits .
3.4
Calibra tion
Calibra tion of the meter circuits and peak detector
are the only calibrat ion required for the model 844.
-13STEAM POWERED RADIO.COM
Meter Calibra tion
3.4.1
1)
2)
Set up:
3)
4)
Meter Cal Button in
out
De Emph Button
0db/100% Buttonin
Total Mod Button in
Adjust Meter Cal Control for 100% or 0db on the LEFT/TEST meter.
Peak Modulation Calibra tion
3.4.2
1)
2)
3)
4)
5)
6)
7)
8)
Measurements
3.5
set the
Set Meter Cal Push ButtonSwitch to the in
posit ion.
Set% peak to 100.
Set peak duration to 0.
11
Adjust Peak Cal Control until 11 + 11 and - 11
lightsar e on and peaks/min is in the constan t
count mode.
Set% peak to 101.
Press the PEAKS/MIN RESET Switch.
If 11 - 11 and 11 +11 lights are on and PEAKS/MIN is
in the constan t count mode, readjus t PEAK CAL
until light go out and counter stops counting .
(A delay of 2 sec. may be encountered.)
Repeat steps 2 through 7 as required .
11
-
11
3.5.1
Set thumbwheel switches to desired frequency and
or +" push button in as required .
11
Main Channel Modulation (L+R)
Press the L+R function switch and the odb/100%
attenuat ion switch. The LEFT/TEST meter will indicate the main channel
modulation directly in percent. A fully modulated right or left
channel only signal will indicate 45% on the meter. A fully modulated
L=R signal will indicate 90% and a fully modulated L=-R signal will
indicate 0.
3.5.2
Stereo Subchannel Modulation
Press the L-R function switch and the odb/100%
The LEFT/TEST meter will indicate the stereo
switch.
ion
attenuat
directly in percent. A fully modulated right or
ion
modulat
el
subchann
left channel only will indicate 45% on the meter. A fully modulatd
L=-R signal will indicate 90% and a fully modulated modulation L=R
signal will indicate 0.
-14STEAM POWERED RADIO.COM
3.5.3
Pilot Carri er Modulation
Press the 19KHz function switch and the -20db/10%
atten uatio n switch. The LEFT/TEST meter will indic ate the pilot
ing 10%
modulation level , with the 100% mark on the meter denot
and 10%.
8%
en
betwe
is
level
lation
modu
modulation. Correct pilot
.
This measurement can be made in the presence of program modulation
3.5.4
3.5.5
3.5.5 .1
38 KHz Subca rrier Suppression
a.
Apply a modulating between 5 KHz and 15 KHz to
the left channel of the trans mitte r under
test, and adjus t its level to indic ate 90% on
the LEFT/TEST meter.
b.
Press the 38 KHz function switch.
c.
With the meter atten uatio n switches, selec t an
attenu ation that provides a usable reading on
the LEFT/TEST meter. The 38 KHz subca rrier
suppression is then the algeb raic sum of the
meter reading and the atten uatin inser ted.
For example, a meter reading of -2 dB with the
-50 dB meter atten uatio n switch depressed
denotes a 38 KHz subca rrier suppression of
52 dB below 100% modulation .
Stereo Separation
Stereo Channel Separation (Left Channel Modulated)
a. Apply a modulating signal between 50 Hz and 15
KHz to the left channel of the trans mitte
under test and adjus t its level to indic ate
90% on the LEFT TEST meter.
b.
Press the R function switch.
c.
With the meter attenu ation switches, selec t an
attenu ation that provides a usable reading on
the LEFT/TEST meter.
d.
The channel separ ation is the algeb raic sum of
the meter reading and the attenu ation
inser ted, less approximately 1 dB (0.915 dB)
to account for the 90% left-c hanne l modulation
level . For example, a meter reading of -2 dB
with the 1%/-40 dB meter attenu ation switch
depressed denotes a stereo channel separ ation
of 41 dB.
-15STEAM POWERED RADIO.COM
3.5.5.2
3. 5.6
3.5.7
Stereo Channel Separation (Right Channel Modulated)
a.
Press the R function switch.
b.
Press the 100%/0 dB meter attenuatio n switch.
c.
Apply a modulating signal between 50 Hz and
15 KHz to the right channel of the transmitt er
under test and adjust its level to indicate
90% on the LEFT/TEST meter.
d.
Press the L function switch.
e.
With the meter attenuatio n switches, select an
attenuatio n that provides a usable reading on
the LEFT/TEST meter.
f.
The channel separatio n is the algebraic sum of
the meter reading and the attenuatio n
inserted, less 1 dB to account for the 90%
right-chan nel modulation level.
Main Channel to Subchannel Crosstalk
a.
Press the L+R function switch and the 100%/0
dB meter attenuatio n switch.
b.
Apply an L+R modulating signal to the
transmitt er under test and adjust the level
for a 90% reading on the LEFT/TEST meter.
c.
Press the L-R function switch.
d.
With the meter attenuatio n switches, select an
attenuatio n that provides a usable reading on
the LEFT/TEST meter.
e.
The crosstalk measure is the algebraic sum of
the selected attenuatio n and the meter
reading, less 1 dB to account for the 90%
modulation setting.
Subchannel to Main Channel Crosstalk
a.
Press the L-R function switch and the 100%/0
dB meter attenuatio n switch.
b.
Apply an L-R modulating signal to the
transmi tter under test and adjust the level
for 90% reading on the LEFT/TEST meter .
c.
Press the L+R function switch.
-16STEAM POWERED RADIO.COM
3.5.8
3.5 . 9
3.5.10
d.
With the meter attenua tion switch es, select an
attenua tion that provides a usable reading on
the LEFT/TEST meter.
e.
The crossta lk measured is the algebra ic sum of
the selecte d attenua tion and the meter
reading , less 1 dB to account for the 90%
modulation setting .
FM Noise
a.
Apply L+R Modulating signal of the transm itter
under test and adjust the level for a 90%
reading on the LEFT/TEST meter .
b.
Turn off all transm itter modulation.
c.
Press total modulation switch.
d.
With the meter attenua tion switches, select an
attenua tion that provides a usable reading on
the LEFT/TEST meter.
e.
The algebra ic sum of the selecte d attenua tion
and the meter reading is the FM signal to
noise ratio.
----NOTE---IF A DE-EMPHASIZED READING IS REQUIRED, THE
DE -EMPH FUNCTION SWITCH MUST BE DEPRESSED.
Distort ion
a.
Apply a modulating signal to the transm itter
channel to be measured.
b.
Connect a distort ion analyzer to the
approp riate rear panel connector . RIGHT
channel connector J4, LEFT channel connector
JS, if de-emphasis is desired ; or RIGHT
channel connector J6, LEFT channel connector
J7, if de-emphasis is not require d.
Pilot Frequency
a.
Connect frequency counter to the "FREQ.
COUNTER" jack on the monitor front panel.
b.
Place the frequency selecto r switch to the
19.0 KHz positio n . The transm itted pilot
frequency is counted directl y on the counte r.
-17STEAM POWERED RADIO.COM
3.5.11
Peak Modulation
Peak modulation is directl y read on the peak light
circui t. Peak modulation can be determined by adjusti ng the thumbwheel
switches so that lights and counter just come on.
3.5.12
Incidental and Residual AM
a.
b.
3.5.13
Applysignal of transm itters under test to the
RF INPUT HI LEVEL jack.
Adjust HI LEVEL INPUT SET until the SET LED ON
1 amp 1ights.
c.
Depress AM NOISE function switch .
d.
With the meter attenua tor switches select an
attenua tion that provides a usable reading on
the LEFT/TEST meter.
e.
The algebraic sum of the selecte d attenua tion
and the meter readinq is the AM noise level.
----NOTE---THE AM NOISE CAN BE READ FRQ\1 THE HIGH LEVEL
RF INPUT ONLY.
Multipath Noise
a.
Depress the MULTIPATH function switch.
b.
With the meter attenua tion switches select an
attenua tion that provides a usable reading on
the LEFT/TEST meter.
c.
The algebraic sum of the selecte d attenua tion
and the meter reading is the multipath noise
1eve 1 •
----NOTE---CAN BE READ FROM THE LOW LEVEL
NOISE
MULTIPATH
ONLY.
RF INPUT
-18STEAM POWERED RADIO.COM
3.6
Absence of Modulation Alarm (Optional)
The alarm is triggered when the composite signal drops below 30 percent
modulation for a period of time between 2 seconds and 30 seconds. Time
is a user adjustment. The output supplied is an open collector circuit
that supplies a ground when alann is present. Output is available on
rear panel terminal board.
3.7
Carrier Fail Alarm (Optional}
The alarm is triggered when the RF carrier drops below 250 V. The
output supplied is an open collector circuit that supplies a ground
when the alarm is present. Output is available on TB2 on the rear
panel.
3.8
Use of Remote Metering Panel .
Model 804
The cable supplied with the Remote Metering Panel is connected to a
Terminal Board on the monitor rear panel and wi ll duplicate the flasher
and meter reading appearing on the monitor.
-19STEAM POWERED RADIO.COM
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PAGE 1 OF 7
LIST OF MATERIALS
ASSEMBLY ti • 6608-3403
REV. II C
Al RF PRESELECTOR BDASSY
CKT.REF.
DESCRIPTION
TFT PART II
--------------------------------------------------------------------------Cl
C2
C3
C4
C5
C6
C7
CB
C9
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Cl4
Cl5
Cl6
Cl7
Cl8
Cl9
C20
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
C40
C41
C42
C43
C44
C45
C46
C47
C48
STEAM POWERED RADIO.COM
CERAMIC CK05 .OlMFD
MICA 3PF
CERAMIC CK05 • lMF
CERAMIC CK05 .lMF
CERAMIC CK05 .OOlMF
CERAMIC CK05 .OlMFD
MINI CERAMIC 1.0MF
MINI CERAMIC l.OMF
CERAMIC CK05 • IMF
CERAMIC CK05 • IMF
CERAMIC CKOS • lMF
CERAMIC CK05 • lMF
MINI CERAMIC 1 .OMF
CERAMIC CK05 .OlMFD
CERAMIC CK05 .OlMFD
CERAMIC CK05 .OlMFD
USED
VARIABLE 5-55pf
CERAMIC CK05 .OOlMF
CERAMIC CK05 470pf
CERAMIC CK05 • lMF
MINI CERAMIC 1 .OMF
CERAMIC CK05 • 01 MFD
MINI CERAMIC l.OMF
MINI CERAMIC l.OMF
MINI CERAMIC l.OMF
CERAMIC CK05 .OOlMF
CERAMIC CK05 .OlMFD
CERAMIC CK05 • IMF
CERAMIC CK05 • lMF
CERAMIC CKOS .OlMFD
CERAMIC CKOS • lMF
CERAMIC CK05 • IMF
CERAMIC CK05 .O IMF
MICA 150PF
MICA 36PF
MICA lOPF
MICA 150pf
CERAMIC CK05 .lMF
CERAMIC CK05 • lMF
CERAMIC CK05 • IMF
CERAMIC CK05 • IMF
CERAMIC CKOS • lMF
CERAMIC CKOS • lMF
CERAMIC CKOS • lMF
CERAMIC CK05 .0012MF
CAP CERAMIC CKOS .OlMFD
CAP CERAMIC CKOS • IMF
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
NOT
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
1015-0002
1001-0030
1015-0001
1015-0001
1015-0010
1015-0002
1005-0001
1005-0001
1015-0001
1015-0001
1015-0001
1015-0001
1005-0001
1015-0002
1015-0002
1015-0002
1012-0555
1015-0010
1015-0470
1015-0001
1005-0001
1015-0002
1005-0001
1005-0001
1005-0001
1015-0010
1015-0002
1015-0001
1015-0001
1015-0002
1015-0001
1015-0001
1015-0002
1001-0151
1001-0360
1001-0100
1001-0151
1015-0001
1015-0001
1015-0001
1015-0001
1015-0001
1015-0001
1015-0001
1015-0040
1015-0002
1015-0001
LIST OF MATERIALS
ASSEMBLY II.
REV. II C
Al RF PRESELECTOR BDASSY
CKT.REF.
PAGE 2 OF 7
DESCRIPTION
6608-3403
TFT PART II
--------------------------------------------------------------------------C49
C50
C51
C52
C53
C54
C55
C56
C57
C58
C59
C60
C61
C62
C63
C64
C65
C66
C67
C68
C69
C70
C71
C72
C73
C74
C75
C76
C77
C78
C79
C80
C81
C82
C83
C84
C85
C86
C87
C88
C89
C90
C91
C92
C93
C94
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CAP
CAP
CAP
CAP
CAP
CAP
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CAP
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CAP
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CAP
CAP
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CERAMIC CKOS • lMF
CERAMIC CK05 .OlMFD
CERAMIC CKOS .OlMFD
CERAMIC CKOS .OlMFD
CERAMIC CKOS • 0 lMFD
CERAMIC CK05 • lMF
CERAMIC CK05 .OlMFD
MICA CMOS 270PF
MICA 150pf
ELECT VERT MT 16V 47MF
CERAMIC CK05 • IMF
CERAMIC CK05 • IMF
CERAMIC CKOS • !MF
CERAMIC CK05 .OOlMF
MINI CERAMIC l.OMF
CERAMIC CK05 .OOlMF
CERAMIC CK05 .IMF
CERAMIC CK05 .IMF
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CERAMIC CK05 .IMF
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MICA 750PF
CERAMIC CK05 .IMF
CERAMIC CKOS • IMF
MICA 24PF
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1015-0002
1015-0001
1005-0001
1010-0099
1015-0001
1015-0002
1015-0002
1015-0002
1015-0002
1015-0001
1015-0002
1001-0271
1001-0151
1010-0049
1015-0001
1015-0001
1015-0001
1015-0010
1005-0001
1015-0010
1015-0001
1015-0001
1015-0002
1015-0001
1015-0001
1001-0680
1015-0001
1001-0751
1015-0001
1015-0001
1001-0240
1015-0002
USED
USED
USED
MICA 820PF
MICA lOOOPF
MICA CMOS 270PF
MICA 750PF
CERAMIC CKOS .IMF
CERAMIC CK05 .IMF
CERAMIC CKOS • IMF
CERAMIC CKOS • IMF
CERAMIC CKOS • lMF
CERAMIC CK05 • IMF
VARIABLE 5-SSpf
1001-0821
1001-0102
1001-0271
1001-0751
1015-0001
1015-0001
1015-0001
1015-0001
1015-0001
1015-0001
1012-0555
LIST OF MATERIALS
Al RF PRESELECTOR BDASSY
CKT.REF.
C97
C98
C99
ClOO
ClOl
CRl
CR2
CR3
CR4
CRS
CR6
CR7
CR8
CR9
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J2
J3
J4
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J6
J7
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PAGE 3 OF 7
ASSEMBLY#.
REV.# C
DESCRIPTION
6608-3403
TFT PART II
CAP MINI CERAMIC 1.0MF
NOT USED
CAP CERAMIC CKOS .IMF
CAP CERAMIC CKOS .OlMFD
CAP ELECT lOUF 35V VERT MT
LED GREEN - LEDCO
LED GREEN - LEDCO
DIODE 1N4001
DIODE HP2800
NOT USED
DIODE 1N3064
DIODE 1N3064
DIODE 1N3064
NOT USED
NOT USED
DIODE VARICAP BB105G
IF FILTER 178BBR-3132A 10.7MHz
HEAT SINK WAVESOLDERABLE
HEAT SINK WAVESOLDERABLE
NOT USED
NOT USED
CONN MOLEX 12 PIN
CONN MOLEX 8 PIN
CONN MOLEX 10 PIN
CONN MOLEX 6 PIN
CONN MOLEX 2 PIN
CONN CRYSTAL MOLEX 3 PIN
CONN MOLEX 2 PIN
RELAY 12V 2A AT 28V
INDUCTOR 220uH
INDUCTOR lOOuH
INDUCTOR 2.2UH
INDUCTOR 85NH
2250-6012
2250-6508
2250-6510
2250-6506
2250-6002
2250-8803
2250-6002
1880-0022
1530-0220
1531-0101
1531-0021
1501-0085
1005-0001
1015-0001
1015-0002
1010-0099
1285-4951
1285-4951
1284-4001
1282-2800
1281-3064
1281-3064
1281-3064
1290-0105
1052-0053
2010-0637
2010-0637
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L3
L4
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L6
L7
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1530-0680
INDUCTOR 47uH
INDUCTOR 47uH
INDUCTOR 47uH
INDUCTOR 47UH
INDUCTOR 2.2UH
INDUCTOR 47uH
INDUCTOR .47UH
PCB
TRANSISTOR 2N3563
TRANSISTOR 2N3563
TRANSISTOR 2N3563
1530-0470
1530-0470
1530-0470
1930-0470
1531-0021
1530-0470
1530-0047
1600-3403
1271-3563
1271 - 3563
1271-3563
Q4
TRANSISTOR 2N2222
1271-2222
QS
Q6
TRANSISTOR 2N3563
TRANSISTOR 2N3563
1271-3563
1271-3563
STEAM POWERED RADIO.COM
LIST OF MATERIALS
ASSEMBLY II.
REV. II C
Al RF PRESELECTOR BDASSY
CKT.REF.
PAGE 4 OF 7
DESCRIPTION
6608-3403
TFT PART II
--------------------------------------------------------------------------Q7
Q8
Q9
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R3
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Rl5
Rl6
Rl7
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R19
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R25
R26
R27
R28
R29
R30
R31
R32
R33
R34
R35
R36
R37
R38
R39
R40
STEAM POWERED RADIO.COM
TRANSISTOR 2N3563
TRANSISTOR 2N3563
TRANSISTOR 2N2907
TRANSISTOR 2N3563
TRANSISTOR 2N3563
TRANSISTOR 2N3563
TRANSISTOR 2N3563
TRANSISTOR 2N3563
RES CAR COMP lK l/4W 5%
RES CAR COMP l/4W 100K 5%
RES CAR COMP l/4W lOK 5%
RES CAR COMP l/4W 4.7K 5%
RES CAR COMP l/4W lOK 5%
RES CAR COMP l/4W 470 5%
RES CAR COMP l/4W 1.2K 5%
RES CAR COMP l/4W 4.7K 5%
RES CAR COMP l/4W 2 . 2K 5%
RES CAR COMP l/4W 4.7K 5%
RES CAR COMP l/4W 47 5 %
RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W 270 5%
RES CAR COMP l/4W 150 5%
RES CAR COMP 1/ 4W 100 5%
RES CAR COMP l/4W 330 5%
RES CAR COMP l/4W 3.3K 5%
RES CAR COMP l/4W 1.8K 5%
RES CAR COMP l/4W 910 5%
RES CAR COMP l/4W 10 5%
RES CAR COMP l/4W 390 5%
RES CAR COMP l/4W 470 5%
RES c.c. l/4W 100 5%
RES CAR COMP l/4W 390 5%
RES CAR COMP l/4W 820 5%
RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W 470 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 6.8K 5%
RES CAR COMP l/4W 100K 5%
RES CAR COMP l/4W !OK 5%
RES CAR COMP l/4W 4 . 7K 5%
RES c.c. l/4W 270 5%
RES CAR COMP 1/ 4W 100 5%
RES CAR COMP 1/ 4W lOK 5%
RES CAR COMP l/4W 4.7K 5%
RES CAR COMP 1/ 4W 390 5%
RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W 51 5%
RES CAR COMP l/4W 47K 5%
1271-3563
1271-3563
1271-2907
1271-3563
1271-3563
1271-3563
1271-3563
1271-3563
1065-1001
1065-1003
1065-1002
1065-4701
1065-1002
1065-0470
1065-1201
1065-4701
1065-2201
1065-4701
1065-0047
1065-1001
1065-0270
1065-0150
1065-0100
1065-0330
1065-3301
1065-1801
1065-0910
1065-0010
1065-0390
1065-0470
1065-0100
1065-0390
1065-0820
1065-1001
1065-0470
1065-0100
1065-6801
1065-1003
1065-1002
1065-4701
1065-0270
1065-0100
1065-1002
1065-4701
1065-0390
1065-1001
1065-0051
1065-4702
STEAM POWERED RADIO.COM
LIST OF MATERIALS
Al RF PRESELECTOR BDASSY
CKT.REF.
PAGE 5 OF 7
ASSEMBLY # •
REV. II
C
DESCRIPTION
6608-3403
TFT PART#
--------------------------------------------------------------------------R41
R42
R43
R44
R45
R46
R47
R48
R49
R50
RSI
R52
R53
R54
R55
R56
R57
R58
R59
R60
R61
R62
R63
R64
R65
R66
R67
R68
R69
R70
R71
R72
R73
R74
R75
R76
R77
R78
R79
R80
R81
R82
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
NOT
NOT
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
NOT
RES
RES
RES
CAR COMP 1/4W 560 5%
1065-0560
1065-0047
1065-1002
1065-1502
1065-0120
1065-1002
1065-0150
1065-0510
1065-1002
1065-3301
1065-0330
1065-0010
1065-0470
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RES
RES
RES
RES
RES
RES
RES
RES
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CAR COMP l/4W !OK 5%
CAR COMP 1/4W 15K 5%
CAR COMP l/4W 120 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 150 5%
CAR COMP 1/4W 510 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 3.3K 5%
CAR COMP 1/4W 330 5%
CAR COMP l/4W 10 5%
CAR COMP l/4W 470 5%
USED
USED
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CAR COMP 1/4W 100 5%
CAR COMP l/4W lOK 5%
VARIABLE lT lK
CAR COMP 1/4W 100 5%
CAR COMP 1/4W 100K 5%
CAR COMP 1/ 4W 22K 5%
CAR COMP l/4W 2.2K 5%
CAR COMP l/4W 22K 5%
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VARIABLE lT SK
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CAR COMP l/4W 8.2K 5%
CAR COMP 1/4W 2.2K 5%
CAR COMP 1/4W lK 5%
MT FILM 1/8W 1.27K 1%
MT FILM 1/8W 1.27K 1%
MT FILM 1/BW 1.27K 1%
1065-1001
1065-1002
1065-1003
1065-8201
1065-2201
1065-1001
1061-1271
1061-1271
1061-1271
R84
RES MT FILM l/8W 1.27K 1%
1061-1271
R85
R86
R87
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RESISTOR CAR
RES CAR COMP
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1065-1003
1065-0150
1065-1002
1065-2701
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COMP
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1065-0100
1065-1002
1072-1001
1065-0100
1065-1003
1065-2202
1065- 2201
1065-2202
1072-1001
1065-1001
1065-1502
1072-5001
1065-1003
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1065-1002
LIST OF MATERIALS
Al RF PRESELECTOR BDASSY
CKT.REF.
PAGE 6 OF 7
ASSEMBLY#.
REV.If C
DESCRIPTION
6608-3403
TFT PART II
--------------------------------------------------------------------------R89
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LIST OF MATERIALS
ASSEMBLY# . 6608-3403
REV .II C
Al RF PRESELECTOR BDASSY
CKT . REF.
PAGE 7 OF 7
DESCRIPTION
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ASSEMBLY II • 6608-3405
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DESCRIPTION
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GER CK05 • 1 MF
CER CK05 .IMF
MICA lOOOPF
MICA 270PF
MICA 1700PF
MICA 200PF
MICA lOOOPF
MICA 270PF
ELECT VERT MT 25V 470MF
MINI CER IMF
MINI CER lMF
MICA 18PF
MICA 270PF
MICA 33PF
MICA 470PF
MICA 470PF
MICA 240PF
MICA SPF
MICA 22PF
MICA lOOPF
MICA 75PF
MINI CER lMF
MINI CER IMF
GER CK05 . 1 MF
MICA SlPF
MICA lOOOPF
MICA 470PF
1005-0001
1005-0001
1005-0001
1005 - 0001
1001-0560
1001-0100
1001-0100
1010-0012
1015-0001
1001-0100
1001-0100
1015-0039
1001-0241
1015-0082
1010-0011
1015-0001
1015-0001
1006-0002
1001-0910
1015-0001
1015-0001
1015-0001
1015-0001
1001-0102
1001-0271
1001-0172
1001-0201
1001-0102
1001-0271
1010-0045
1005-0001
1005-0001
1001-0180
1001-0271
1001-0330
1001-0471
1001-0471
1001-0241
1001-0050
1001-0220
1001-0101
1001-0 7 50
1005-0001
1005-0001
1015-0 00 1
100 1 -051 0
1001-0102
1001-0471
PAGE 2 OF
LIST OF MATERIALS
ASSEMBLY It • 6608-3405
REV .It C
A3 FM DEMODULATOR BD
DESCRIPTION
CKT.REF.
9
TFT PART It
--------------------------------------------------------------------------C49
C50
C51
C52
C53
C54
C55
C56
C57
C58
C59
C60
C61
C62
C63
C64
C65
C66
C67
C68
C69
C70
C71
C72
C73
C74
C75
C76
C77
C78
C79
C80
C81
C82
C83
C84
C85
C86
C87
C88
C89
C90
C91
C92
C93
C94
C95
C96
STEAM POWERED RADIO.COM
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CAP
CER CK05 .1 MF
MINI CER lMF
MINI CER lMF
CER CK06 .22MF
CER CK05 • lMF
CER CK05 • lMF
TAN 35V 10% lQMF
TAN 35V 10% 4. 7 MF
MINI CER lMF
MINI CER lMF
TAN 35V 10% 4.7MF
TAN 35V 10% lOMF
CER CK05 • lMF
CER CK05 • lMF
MINI CER lMF
MINI CER lMF
MINI CER lMF
MINI CER lMF
CER CK05 .068MF
ELECT lOMFD 35V VERT MT
MINI CER lMF
ELECT VERT MT 25V 470MF
CER CK06 . 22MF
CER CK05 . lMF
CER CK05 • lMF
MINI CER lMF
MINI CER lMF
MINI CER lMF
MINI CER lMF
MET POLY • 01 MF
MINI CER lMF
MINI CER lMF
MET POLY .O lMF
MINI CER lMF
MINI CER lMF
MET POLY .OlMF
CER CK06 .22MF
MINI CER lMF
MINI CER lMF
CER CK06 .22MF
CER CKOS • lMF
CER CK05 • lMF
TAN 35V 10% lOMF
TAN 35V 10% 4.7MF
ELECT 8000MF
CER CKOS • 1 MF
ELECT 4700MF
CER CK05 • lMF
1015-0001
1005-0001
1005-0001
1015-0003
1015-0001
1015-0001
1008-0101
1008-0047
1005-0001
1005-0001
1008-0047
1008-0101
1015-0001
1015-0001
1005-0001
1005-0001
1005-0001
1005-0001
1015-0013
1010-0099
1005-0001
1010-0045
1015-0003
1015-0001
1015-0001
1005-0001
1005-0001
1005-0001
1005-0001
1006-0002
1005-0001
1005-0001
1006-0002
1005-0001
1005-0001
1006-0002
1015-0003
1005 - 0001
1005-0001
1015-0003
1015-0001
1015-0001
1008-0101
1008-0047
1010-8000
1015-0001
1010-0472
1015-0001
PAGE 3 OF 9
LIST OF MATERIALS
ASSEMBLY #.6608-3405
REV • II C
A3 FM DEMODULATOR BD
CKT.REF.
DESCRIPTION
TFT PART II
--------------------------------------------------------------------------C97
C98
C99
ClOO
ClOl
Cl02
Cl03
Cl04
Cl05
Cl06
Cl07
Cl08
Cl09
CllO
Clll
CRl
CR2
CR3
CR4
CR5
CR6
CR7
CR8
CR9
CRlO
CRl 1
CR12
CR13
HSl
HSll
Jl
J2
J3
J4
JS
J6
J7
J8
J9
JlO
Jll
Jl2
Jl3
Jl4
Jl5
Kl
Ll
12
STEAM POWERED RADIO.COM
CAP MINI CER lMF
CAP MINI CER lMF
CAP ELECT VERT MT lOOMF
CAP ELECT VERT MT lOOMF
CAP ELECT VERT MT lOOMF
CAP ELECT AXIAL MT 6V 25MF
CAP ELECT VERT MT lOOMF
CAP ELECT VERT MT lOMF
CAP ELECT VERT MT lOOMF
CAP CER CK05 .1 MF
CAP CER CK05 • lMF
CAP MICA 91PF
CAP MICA 27PF
CAP VERB 9-35PF
FACTORY SELECT
DIODE HP2800
DIODE HP2800
DIODE HP2800
DIODE HP2800
DIODE HP2800
DIODE HP2800
DIODE HP2800
DIODE 1N3064
DIODE HP2800
DIODE SILICONE RECTIFIER MDA97
DIODE SILICONE RECTIFIER MDA97
DIODE HP2800
DIODE 1N4001
HEAT SINK
NOT USED
CONN MOLEX PLUG 2 PIN
CONN MOLEX PLUG 8 PIN
CONN MOLEX PLUG 7 PIN
CONN MOLEX PLUG 14 PIN
CONN MOLEX PLUG 10 PIN
CONN MOLEX PLUG 8 PIN
CONN MOLEX PLUG 2 PIN
CONN MOLEX PLUG 12 PIN
CONN MOLEX PLUG 6 PIN
CONN MOLEX PLUG 6 PIN
CONN MOLEX PLUG 6 PIN
CONN MOLEX PLUG 3 PIN
CONN MOLEX PLUG 3 PIN
CONN MOLEX PLUG 3 PIN
CONN MOLEX PLUG 4 PIN
RELAY Wll7 SlP-8
CHOKE RF 2 1/2 T
INDUCTOR lmHY VARIABLE
1005-0001
1005-0001
1010-0110
1010-0110
1010-0110
1010-0250
1010-0110
1010-0099
1010-0110
1015-0001
1015-0001
1001-0910
1001-0270
1012-9035
1282-2800
1282-2800
1282-2800
1282-2800
1282-2800
1282-2800
1282-2800
1281-3064
1282-2800
1284-9702
1284-9702
1282-2800
1284-4001
2010-1401
2250-6002
2250-6508
2250-6507
2250-6014
2250-6510
2250-6508
2250-6002
2250-6012
2250-6506
2250-6506
2250-6506
2250-6003
2250-6003
2250-6003
2250-6504
1880-0019
1530-0025
1577-0920
PAGE 4 OF 9
LIST OF MATERIALS
ASSEMBLY ti • 6608-3405
REV. ti ~
A3 FM DEMODULATOR BD
CKT.REF.
DESCRIPTION
TFT PART fl
---------------------------------------------------------------------------
-
L3
L4
L5
L6
17
MFl
MMl
PC3
Ql
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
QlO
Rl
R2
R3
R4
RS
R6
R7
R8
R9
RlO
Rll
Rl2
Rl3
Rl4
Rl5
Rl6
Rl7
Rl8
Rl9
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
STEAM POWERED RADIO.COM
INDUCTOR lmHY VARIABLE
CHOKE RF 560uH
CHOKE RF 470uH
CHOKE RF 27uH
CHOKE RF 470uH
NUT SELF LOCK 4-40
SCREW P.H. 4-40Xl/2
PCB
TRANSISTOR 2N4275
TRANSISTOR 2N4121
TRANSISTOR 2N4275
TRANSISTOR 2N4275
TRANSISTOR 2N4121
TRANSISTOR 2N3563
TRANSISTOR 2N4275
TRANSISTOR 2N2222
TRANSISTOR 2N3643
TRANSISTOR 2N3643
RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W 150K 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 100 5%
RES MT FILM 1/BW lOK 1%
RES c.c. l/4W lM 5%
RES CAR COMP l/4W 4.7K 5%
RES CAR COMP l/4W 4.7K 5%
RES CAR COMP l/4W 4.7K 5%
5%
RES CAR COMP l/4W 470
5%
COMP
l/4W
470
RES CAR
l/4W
2.2K
5%
COMP
RES CAR
l/4W
2.2K
5%
COMP
RES CAR
OHM
1%
37.4
l/8W
RES MT FILM
OHM
1%
l/8W
37.4
RES MT FILM
750
1%
RES MT FILM l/8W
RES CAR COMP l/4W 3.3K 5%
RES CAR COMP l/4W 27K 5%
RES CAR COMP l/4W 27K 5%
RES CAR COMP l/4W 27K 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 27K 5%
RES CAR COMP l/4W 27K 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP 1/ 4W 100 5%
RES CAR COMP l/4W 56K 5%
RES VAR lT ZOK
RES CAR COMP l/4W 39K 5%
1577-0920
1530-0561
1530-0471
1530-0270
1530-0471
2111-0002
2104-0040
1600-3405
1271-4275
1271-4121
1271-4275
1271-4275
1271-4121
1271-3563
1271-4275
12 71-2222
1271-3643
1271-3643
1065-1001
1065-1001
1065-1503
1065-0100
1065-0100
1061-1002
1065-1004
1065-4701
1065-4701
1065-4701
1065-0470
1065-0470
1065-2201
1065-2201
1061-0037
1061-0037
1061-0750
1065-3301
1065-2702
1065-2702
1065-2702
1065-0100
1065-0100
1065-2702
1065-2702
1065-0100
1065-0100
1065-5602
1072-2002
1065-3902
PAGE 5 OF
LIST OF MATERIALS
ASSEMBLY II • 6608-3405
REV. II C
A3 FM DEMODULATOR BD
CKT.REF.
9
DESCRIPTION
TFT PART II
--------------------------------------------------------------------------R31
R32
R33
R34
R35
R36
R37
R38
R39
R40
R41
R42
R43
R44
R45
R46
R47
R48
R49
R50
RS I
R52
R53
R54
R55
R56
R57
R58
R59
R60
R61
R62
R63
R64
R65
R66
R67
R68
R69
R70
R71
R72
R73
R74
R75
R76
R77
R78
STEAM POWERED RADIO.COM
CAR COMP l/4W 27K 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
MT FILM l/8W lK 1%
MT FILM l/8W 2.43K 1%
CAR COMP l/4W 7.5K 5%
CAR COMP l/4W 75K 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
MT FILM l/8W 1.15K 1%
MT FILM l/8W lK 1%
VAR lOT lOK
CAR COMP 1/ 4W 7.5K 5%
CAR COMP l/4W 75K 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W lK 5%
CAR COMP l/4W lOK 5%
CAR COMP 1/ 4W 3.3K 5%
CAR COMP l/4W I.SK 5%
CAR COMP l/4W 390 5%
CAR COMP l/4W 2.2K 5%
CAR COMP 1/ 4W lK 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 470 5%
CAR COMP l/4W 4.7K 5%
VAR lT lOK
CAR COMP l/4W lOK 5%
MT FLIM l/8W lOK 1%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5 %
CAR COMP l/4W 680K 5%
CAR COMP l/4W 330K 5%
CAR COMP 1/ 4W lK 5%
CAR COMP l/4W 1.5K 5%
CAR COMP l/4W 100 5%
CAR COMP 1/ 4W 100 5%
CAR COMP l/4W 5.6K 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 5.6K 5%
CAR COMP l/4W 5.6K 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 5.6K 5%
CAR COMP l/4W 2.2K 5%
CAR COMP l/4W lK 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W 100 5%
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
1065-2702
1065-0100
1065-0100
1061-1001
1061-2431
1065-7501
1065-7502
1065-0100
1065-0100
1061-1151
1061-1001
1069-1002
1065-7501
1065-7502
1065-0100
1065-0100
1065-1001
1065-1002
1065-3301
1065-1501
1065-0390
1065-2202
1065-1001
1065-1002
1065-0470
1065-4701
1072-1002
1065-1002
1061-1002
1065-0100
1065-0100
1065-6803
1065-3303
1065-1001
1065-1501
1065-0100
1065-0100
1065-5601
1065-1002
1065-5601
1065-5601
1065-1002
1065 - 5601
1065-2201
1065-1001
1065-0100
1065-1001
1065-0100
PAGE 6 OF
LIST OF MATERIALS
I,..,
ASSEMBLY fl • 6608-3405
REV.If C
A3 FM DEMODULATOR BO
DESCRIPTION
CKT.REF.
9
TFT PART fl
--------------------------------------------------------------------------R79
R80
R81
R82
R83
R84
R85
R86
R87
R88
R89
R90
R91
R92
R93
R94
R95
R96
R97
R98
R99
RlOO
RlOl
Rl02
Rl03
Rl04
Rl05
Rl06
Rl07
Rl08
Rl09
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RllO
RES
Rlll
Rll2
Rll3
R114
Rll5
Rll6
Rll7
Rl18
Rll9
Rl20
Rl21
Rl22
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
Rl23
RES
Rl24
R l2 5
Rl26
RES
RES
RES
STEAM POWERED RADIO.COM
MT FILM l/8W lOK • 1 %
MT FILM l/8W lOK • 1 %
MT FILM l/8W lOK • 1 %
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 7..5K 5%
CAR COMP l/4W lK 5%
VAR IT lK
CAR COMP l/4W I.SK 5%
CAR COMP l/4W 6.8K 5%
CAR COMP l/4W 1 00 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W lOK 5%
CAR COMP 1/ 4W 62K 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 2.7K 5%
CAR COMP l/4W 2K 5%
CAR COMP l/4W 56K 5%
CAR COMP l/4W 2K 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
VAR lT lK
CAR COMP l/4W 680K 5%
CAR COMP 1/ 4W 330K 5%
MT FILM l/8W 1.37K 1%
MT FILM l/8W 432 1%
MT FILM l /8W 137 1%
MT FILM l/8W 43.2 1%
MT FILM l/8W 1 3 • 7 1%
MT FILM l/8W 12. 7 1 %
MT FILM l/8W 12. 7 1 %
CAR COMP l/4W lOK 5%
CAR COMP l/4W 4.7K 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 12K 5%
CAR COMP l/4W 2.2K 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 13K 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 7.SK 5%
CAR COMP l/4W 5.6K 5%
CAR COMP l/4W 100 5%
CAR COMP 1/ 4W 100 5%
1058-1002
1058-1002
1058-1002
1065-0100
1065-0100
1065-1002
1065-7501
1065-1001
1072-1001
1065-1501
1065-6801
1065-0100
1065 - 0100
1065-1002
1065-6202
1065-0100
1065-0100
1065-2701
1065-2001
1065-5602
1065-2001
1065-0100
1065-0100
1072-1001
1065-6803
1065-3303
1061-1370
1061-0432
1061-0137
1061-0043
1061- 0013
1061-0012
1061-0012
1065-1002
1065-4701
1065-1002
1 065-1202
1065-2201
1065-0100
1065-0100
1065-1302
1065-1002
1065-0100
1065-0100
1065-7501
1065-5601
1065-0100
1065-0100
PAGE 7 OF
LIST OF MATERIALS
ASSEMBLY It. 6608-3405
REV.It C
A3 FM DEMODULATOR BD
CKT.REF.
9
DESCRIPTION
TFT PART II
- ---- ------------------------------------------------------
Rl27
Rl28
Rl29
Rl30
Rl31
Rl32
Rl33
Rl34
Rl35
Rl36
Rl37
Rl38
R139
Rl40
Rl41
Rl42
Rl43
Rl44
Rl45
Rl46
Rl47
Rl48
R149
RISO
Rl51
Rl52
Rl53
Rl54
Rl55
Rl56
Rl57
Rl58
Rl59
Rl60
Rl61
Rl62
Rl63
Rl64
Rl65
Rl66
Rl67
Rl68
Rl69
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
R170
RES
R171
Rl 7 2
R173
Rl74
RES
RES
RES
RES
STEAM POWERED RADIO.COM
MT FILM l/8W lOK 1%
MT FILM l/8W lOK 1%
MT FILM 1/8W lOK 1%
CAR COMP 1/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
MT FLIM l/8W lOK 1%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
MT FLIM 1/8W lOK 1%
CAR COMP 1/4W lOK 5%
VAR lT !OK
CAR COMP l/4W lOK 5%
CAR COMP 1/4W 20K 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 680K 5%
CAR COMP l/4W 330K 5%
CAR COMP l/4W lK 5%
CAR COMP 1/4W 6.8K 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 5.6K 5%
CAR COMP l/4W lOK 5%
CAR COMP 1/ 4W 5.6K 5%
CAR COMP l/4W 100K 5%
CAR COMP l/4W lK 5%
MT FILM l/8W 7.SK 1%
CAR COMP 1/ 4W 100 5%
CAR COMP l/4W 100 5%
VAR IT lOK
CAR COMP l/4W lOK 5%
CAR COMP l/4W 75K 5%
MT FILM l/8W lOK 1%
CAR COMP l/4W 7.5K 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 4.7K 5%
MT FILM l/8W lOK 1%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 4.7K 5%
CAR COMP l/4W 4.7K 5%
CAR COMP l/4W 100 5%
CAR COMP 1/ 4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
1061-1002
1061-1002
1061-1002
1065-0100
1065-0100
1065-0100
1065-0100
1061-1002
1065-0100
1065-0100
1061-1002
1065-1002
1072-1002
1065-1002
1065-2002
1065-0100
1065-0100
1065-6803
1065-3303
1065-1001
1065-6801
1065-0100
1065-0100
1065-5601
1065-1002
1065-5601
1065-1003
1065-1001
1061-7501
1065-0100
1065-0100
1072-1002
1065-1002
1065-7502
1061-1002
1065-7501
1065-1002
1065-4701
1061-1002
1065-1002
1065-4701
1065-4701
1065-0100
1065-0100
1065-0100
1065-0100
1065-0100
1065-0100
PAGE 8 OF
LIST OF MATERIALS
9
ASSEMBLY /1.661)8-3405
REV.II C
A3 FM DEMODULATOR BD
TFT PART II
DESCR IPTION
--------------------------------------------------------------------------CKT.R EF.
Rl7S
Rl76
Rl77
Rl78
Rl79
Rl80
R181
R182
Rl83
Sl
S6
SP!
Ul
U2
U3
U4
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U6
U7
U8
U9
UlO
Ull
Ul2
Ul3
Ul4
UlS
Ul6
U17
Ul8
Ul9
U20
U21
U22
U23
U24
U25
U26
U27
U28
U29
U30
U31
XI!
XT3
XUl
XU2
XU3
STEAM POWERED RADIO.COM
RES CAR COMP 1/4W 100 5%
RES CAR COMP 1/4W 100 5%
1065- 0100
1065- 0100
NOT USED
5%
1065- 0010
RES CAR COMP l/4W 100 5%
5%
RES CAR COMP l/4W 10
5%
RES CAR COMP l/4W 10
RES M.F. !MEG 1% l/8W
SWITCH DPDT 10 POSIT ION
1065- 0100
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IC LM361
IC 74221
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IC LF356
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1102- 4518
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1102- 4001
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1100- 0356
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1100- 0356
1100- 0356
1100- 5534
1100- 0356
1100- 0356
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1100- 0356
1100- 0356
1100- 0353
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1100- 7912
1100 - 0353
1100- 0353
1100- 4205
1100- 4080
1100- 5534
2140- 0103
2140- 0011
2250- 1008
2250- 1014
2250- 1016
PAGE 9 OF
LIST OF MATERIALS
ASSEMBLY II.
REV.II C
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PAGE 1 OF 7
LIS T OF MATERIALS
ASSEMBLY II • 6608-3'106
RE V. II D
A4 FM STEREO BOARD
TFT PART II
---------------------------------------------------------101 0-0 045
25V 470 MF
CK T.R EF.
Cl
C2
C3
C4
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--
C6
C7
C8
C9
ClO
Cl l
Cl2
Cl3
Cl4
Cl5
Cl6
Cl7
Cl8
Cl9
C20
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
C40
C41
C42
C43
C44
C45
C46
C47
C48
STEAM POWERED RADIO.COM
DE SCR IPT ION
CAP ELECT VERT MT
CAP ELECT VERT MT lOOMF
CAP ELECT VERT MT lMF
CAP ELECT VERT MT IMF
MF
CAP ELECT VERT MT 25V 470
lMF
CAP ELECT VERT MT
CAP ELECT VERT MT lMF
MF
CAP ELECT VERT MT 25V 470
CAP CER lMF
NOT USED
CAP ELECT VERT MT IMF
CAP CER CKOS .IM F
CAP CER CK05 .IM F
CAP ELECT 470 0M F
CAP CER DIS C .2M F
CAP POLY .22 MF
CAP ELECT VERT MT lOMF
CAP ELECT VERT MT lOMF
CAP ELECT VERT MT lOMF
CAP ELECT VERT MT lOMF
CAP CER CK05 • lMF
CAP ELECT VERT MT lOMF
CAP ELECT VERT MT lOMF
CAP ELECT 15MF
CAP ELECT l 5MF
CAP ELECT 15MF
CAP CER CKOS • lMF
CAP POLY .22 MF
CAP POLY . 22MF
CAP CER DIS C .OSMF
CAP MICA lOO Opf
CAP ELECT 15MF
CAP CER DIS C .05 MF
CAP ELECT 15MF
CAP GER DIS C .OSMF
CAP ELECT 15MF
CAP CER DIS C .05 MF
CAP CER CKOS .Ol MF
CAP ELECT 15MF
CAP ELECT 15MF
CAP CER DIS C .05 MF
CAP CERAMIC DIS C .OSMF
CAP ELECT VERT MT lMF
CAP MICA lOP F
CAP ELECT 15MF
CAP CER DIS C .05 MF
CAP CER DIS C .OSMF
CAP ELECT lSM F
101 0-0 110
101 0-0 009
101 0-0 009
101 0-0 045
101 0-0 009
101 0-0 009
101 0-0 045
100 5-0 001
101 0-0 009
101 5-0 001
101 5-0 001
101 0-0 472
100 5-2 029
100 2-0 220
101 0-0 099
101 0-0 099
101 0-0 099
101 0-0 099
101 5-0 001
101 0-0 099
101 0-0 099
101 0-0 150
101 0-0 150
101 0-0 150
101 5-0 001
100 2-0 220
100 2-0 220
100 5-5 039
100 1-0 102
101 0-0 150
100 5-5 039
101 0-0 150
100 5-5 039
101 0-0 150
100 5-5 039
101 5-0 002
101 0-0 150
101 0-0 150
100 5-5 039
100 5-5 039
101 0-0 009
100 1-0 100
101 0-0 150
100 5-5 039
100 5-5 039
101 0-0 1 50
PAGE 2 OF 7
LIST OF MATERIALS
ASSEMBLY II.
REV • II D
A4 FM STEREO BOARD
CKT.R EF.
DESCR IPTION
6608-3406
TFT PART II
--------------------------------------------------------------------------C49
C50
C51
C52
C53
C54
C55
C56
C57
C58
C59
C60
C61
C62
C63
C64
C65
C66
C67
C68
C69
C70
C71
C72
C73
C74
C75
C76
C77
C78
C79
C80
C81
C82
C83
C84
C85
C86
C87
C88
C89
C90
C91
C92
C93
C94
C95
C96
STEAM POWERED RADIO.COM
CAP CER CK05 • lMF
CAP CER CK05 .lMF
NOT USED
NOT USED
NOT USED
CAP MICA 6800PF
CAP MICA 910PF
CAP CER CKOS .039MF
CAP MICA 150PF
CAP MICA 180PF
CAP MICA 6200PF
CAP MICA 750PF
CAP MET POLY .OlMF
CAP MICA 6200PF
CAP MET POLY .OlMF
CAP MICA 2400PF
CAP MICA 4700PF
CAP MICA 22PF
CAP MICA 1500PF
CAP MICA 27PF
CAP MICA 2400PF
CAP MICA 4700PF
CAP MICA 2000PF
CAP MICA 220PF
CAP MICA lOOOp f
CAP MICA 82PF
CAP MICA 2000PF
CAP MICA 1500PF
CAP MICA 2000PF
CAP MICA 1500PF
CAP MICA 820PF
CAP MICA 2000PF
CAP MICA 300PF
CAP MICA 22PF
CAP MICA 1700PF
CAP MICA 220PF
CAP MICA l000pf
CAP MICA 120PF
CAP MICA 1500PF
CAP MICA 820PF
CAP MICA 3000PF
CAP MICA 560PF
CAP MICA 2000PF
CAP MICA lOOOpf
CAP MICA 470PF
CAP MICA 300PF
CAP MICA 22PF
CAP MICA 1500PF
1015-0 001
1015-0 001
1001-0 682
1001-0 911
1015-0 041
1001-0 151
1001-0 181
1001-0 622
1001-0 751
1006-0 002
1001-0 622
1006-0 002
1001-0 242
1001-0 472
1001-0 220
1001-0 152
1001-0 270
1001-0 242
1001-0 472
1001-0 202
1001-0 221
1001-0 102
1001-0 820
1001-0 202
1001-0 152
1001-0 202
1001-0 152
1001-0 821
1001-0 202
1001-0 301
1001-0 220
1001-0 172
1001-0 221
1001-0 102
1001-0 121
1001-0 152
1001-0 821
1001-0 302
1001-0 561
1001-0 202
1001-0 102
1001-0 471
1001-0 301
1001-0 220
1001-0 152
PAGE 3 OF 7
LIST OF MATERIALS
ASSEMBLY fl.
REV.fl
A4 FM STEREO BOARD
CKT.REF.
DESCRIPTION
6608-3406
D
TFT PART fl
--------------------------------------------------------------------------C97
C98
C99
ClOO
ClOl
Cl02
Cl03
Cl04
Cl05
Cl06
Cl07
Cl08
Cl09
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Clll
CRl
CR2
CR3
CR4
CRS
CR6
CR7
CR8
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L4
LS
L6
L7
L8
L9
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112
Ll3
114
Ll5
Ll6
117
118
STEAM POWERED RADIO.COM
CAP MICA 820PF
CAP MICA 220PF
CAP MICA 1700PF
CAP MICA 3000PF
CAP MICA 560PF
CAP MICA 2000PF
CAP MICA lOOOpf
CAP MICA 120PF
CAP MICA lOOOpf
CAP MICA 470PF
NOT USED
CAP ELECT VERT MT lOOMF
CAP CER CK05 .lMF
CAP CER CK05 .lMF
NOT USED
DIODE IN3064
DIODE IN3064
DIODE ZENER 1N4737
DIODE ZENER 1N4737
DIODE HP2800
DIODE IN3064
DIODE IN3064
DIODE LED RED LEDCO
FILTER 23-53 KHZ
CONN MOLEX PLUG 2 PIN
CONN MOLEX PLUG 15 PIN
CONN MOLEX PLUG 2 PIN
CONN MOLEX PLUG 2 PIN
CONN MOLEX PLUG 2 PIN
CONN MOLEX PLUG 4 PIN
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
INDUCTOR VARIABLE 10.7mHY
INDUCTOR VARIABLE 10.7mHY
INDUCTOR VARIABLE l0.7mHY
INDUCTOR VARIABLE 10.7mHY
INDUCTOR VARIABLE 10.7mHY
INDUCTOR VARIABLE 10.7mHY
INDUCTOR VARIABLE 370T
INDUCTOR VARIABLE 330T
INDUCTOR VARIABLE 330T
INDUCTOR VARIABLE 370T
INDUCTOR VARIABLE 288T
INDUCTOR VARIABLE 300T
1001-0821
1001-0221
1001-0172
1001-0302
1001-0561
1001-0202
1001-0102
1001 - 0121
1001 - 0102
1001-0471
1010-0110
1015-0001
1015-0001
1281-3064
1281-3064
1283-4737
1283-4737
1282-2800
1281 - 3064
1281-3064
1285-4952
1052-0025
2250-6002
2250-6015
2250-6002
2250-6002
2250-6002
2250-6004
1550-0250
1550-0250
1550-0250
1550-0250
1550-0250
1550-0250
1550-0370
1550-0330
1550-0330
1550-0370
1550-0288
1550-0300
PAGE 4 OF 7
LIST OF MATERIALS
ASSEMBLY II.
REV.II D
A4 FM STEREO BOARD
DESCRIPTION
CKT.REF.
6608- 3406
TFT PART II
--------------------------------------------------------------------------119
120
121
MFl
MMl
PCl
Ql
Q2
Q3
Rl
R2
R3
R4
RS
R6
R7
R8
R9
RlO
Rll
Rl2
Rl3
Rl4
Rl5
Rl6
Rl7
Rl8
Rl9
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R33
R34
R35
R36
R37
R38
R39
STEAM POWERED RADIO.COM
INDUCTOR VARIABLE 370T
INDUCTOR VARIABLE 288T
INDUCTOR VARIABLE 300T
NUT SELF LOCK 4-40
SCREW PH 4 - 40Xl/2
PCB
TRANSISTOR 2N4275
TRANSISTOR 2N4 2 75
TRANSISTOR 2N2222
RES VERIABLE IT lK
RES CAR COMP l/4W lOK 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 47K 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 47K 5%
RES CAR COMP l/4W lOK 5%
RES CAR COMP l/4W !OK 5%
RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W 9 . lK 5%
RES CAR COMP l/4W 5.6K 5%
RES MT FILM l/ 8W lK 1%
RES MT FILM l/8W 6.98K 1%
RES CAR COMP l/4W lOK 5%
RES CAR COMP 1/4W lOK 5%
RES VARIABLE lT 2K
RES CAR COMP l/4W 8.2K 5%
RES VARIABLE lT SK
RES CAR COMP l/4W 330 5%
RES CAR COMP l/4W 2K 5%
RES VARIABLE lT 2K
RES CAR COMP l/4W 3.3K 5%
RES MT FLIM l/8W 681 1%
RES VERIABLE lT 200
RES MT FLIM 1/8W 121 1%
RES CAR COMP l/4W 10 5%
RES VERIABLE lT 2K
RES MT FLIM 1/ 8 W 2.32K 1%
RES CAR COMP l/4W 10 5%
RES VERIAB LE lT 2K
RES MT FLIM l/8W 2.32K 1%
RES CAR COMP l/4W 4.7K 5%
RES CAR COMP l/4W lOK 5%
RES CAR COMP l/4W lOK 5%
RES CAR COMP l/4W 100K 5%
RES CAR COMP l/4W 620
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 100 5%
1550-0370
1550-0288
1550-0300
2111-0002
2104-0040
1600-3406
1271-4275
1271-4275
1271-2222
1072-1001
1065-1002
1065-0100
1065-4702
1065-0100
1065-0100
1065-4702
1065-1002
1065-1002
1065-1001
1065-9101
1065-5601
1061-100 1
1061-6981
1065-1002
1065-1002
1072-2001
1065-8201
1072- 5001
1065-0330
1065-2001
1072-2001
1065-3301
1061-0681
1072-0200
1061-0121
1065-0010
1072-2001
1061-2321
1065-0010
1072-2001
1061-2321
1065-4701
1065-1002
1065-1002
1065-1003
1065-0620
1065-0100
1065 - 0100
PAGE 5 OF 7
LIST OF MATERIALS
ASSEMBLY II.
REV.II 0
A4 FM STEREO BOARD
DESCRI PTION
CKT.RE F.
R40
R41
R42
R43
R44
R45
R46
R47
R48
R49
RSO
RSl
RS2
R53
R54
R55
R56
R57
R58
R59
R60
R61
R62
R63
R64
R65
R66
R67
R68
R69
R70
R71
R72
R73
R74
R75
R76
R77
R78
R79
R80
R8l
R82
R83
R84
R85
R86
R87
STEAM POWERED RADIO.COM
CAR COMP l/4W 4.7K 5%
CAR COMP l/4W lK 5%
CAR COMP l/4W 2.7K 5%
CAR COMP l/4W 680K 5%
CAR COMP l/4W !OK 5%
CAR COMP l/4W lK 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W 100 5%
MT FILM l/8W 7.5K 1%
MT FILM l/8W 3.4K 1%
CAR COMP l/4W 100 5%
VARIABLE lT lK
CAR COMP l/4W 4.7K 5%
CAR COMP l/4W 4.7K 5%
CAR COMP l/4W 100 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W lOK 5%
VARIABLE lT 50
MT FILM l/8W 825 1%
MT FILM l/8W 825 1%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 4.7K 5%
CAR COMP l/4W lK 5%
CAR COMP l/4W lK 5%
CAR COMP l/4W 3.3K 5%
CAR COMP l/4W 5.lK 5%
CAR COMP l/4W 5.lK 5%
CAR COMP l/4W 18K 5%
CAR COMP l/4W 330 5%
USED
USED
USED
VARIABLE 10T lK
RES CAR COMP l/4W 2.7K 5%
RES CAR COMP l/4W lK 5%
THERMISTOR lK
RES CAR COMP l/4W 4.7K 5%
RES CAR COMP l/4W 3.3K 5%
RES CAR COMP l/4W 3.3K 5%
RES CAR COMP l/4W 3.3K 5%
RES CAR COMP l/4W 27K 5%
RES CAR COMP l/4W 390 5%
RES CAR COMP l/4W lK 5%
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RES VARIABLE lT lOK
RES MT FILM l/8W 47.SK 1%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 100 5%
RES
RES
RES
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RES
RES
RES
RES
RES
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RES
RES
RES
RES
RES
RES
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RES
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RES
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NOT
NOT
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6608-340 6
TFT PART#
1065-47 01
1065-10 01
1065-27 01
1065-68 03
1065-10 02
1065-10 01
1065-01 00
1065-01 00
1061-75 01
1061-34 01
1065-01 00
1072-10 01
1065-47 01
1065-47 01
1065-01 00
1065-10 02
1065-10 02
1072-00 50
1061-08 25
1061-08 25
1065-10 02
1065-47 01
1065-10 01
1065-10 01
1065-33 01
1065-51 01
1065-51 01
1065-18 02
1065-03 30
1069-10 01
1065-27 01
1065-10 01
1080-00 13
1065-47 01
1065-33 01
1065-33 01
1065-33 01
1065-27 02
1065-03 90
1065-10 01
1061-47 52
1072-10 02
1061-47 52
1065-01 00
1065-01 00
PAGE 6 OF 7
LIST OF MATERIALS
ASS EMBLY II.
REV.II I)
A4 FM STEREO BOARD
CKT.REF.
DESCRIPTION
6608-3406
TFT PART U
--------------------------------------------------------------------------R88
R89
R90
R91
R92
R93
R94
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R96
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R98
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RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W lK 5%
NOT USED
NOT USED
NOT USED
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RES CAR COMP l/4W 4.7K 5%
RES CAR COMP l/4W 36K 5%
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RES CAR COMP l/4W 33K 5%
RES CAR COMP l/4W lK 5%
RES CAR COMP l/4W 3.3K 5%
RES CAR COMP l/4W 8.2K 5%
RES CAR COMP 1/4W I.SK 5%
RES CAR COMP 1/ 4W 390 5%
NOT USED
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RES CAR COMP 1/4W 270 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP l/4W 220 5%
RES CAR COMP l/4W 100 5%
RES CAR COMP SW 22 5%
SWITCH 10 POS SCHADOW
SPACER 3/16"
SOLID PIN
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SOLID PIN
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IC LF353
IC LF356
IC CA3054
IC LF353
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IC LF356
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IC LM710CN
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IC SN7400N
IC SN7400N
IC SN7400N
IC LM741
1065-1001
1065-1001
1065-1001
1065-3301
1065-4701
1065-3602
1072-1002
1065-3302
1065-1001
1065-3301
1065-8201
1065-1501
1065-0390
1065-1001
1065-0270
1065-0100
1065-0220
1065-0100
1068-0022
1850-0102
2130-1875
2140-0071
2140-0071
2140-0071
2140-0071
2140-0071
2140-0071
2140-0071
1100-0353
1100- 0356
1100-3054
1100-0353
1101-1458
1100-0356
1100-0565
1100-7476
1100-0710
1100-7400
1100-7400
1100-7400
1100-7400
1100-0741
PAGE 7 OF 7
LIST OF MATERIALS
ASSEMBLY II.
REV .II D
A4 FM STEREO BOARD
CKT.REF.
6608-3406
TFT PART II
DESCRIPTION
--------------------------------------------------------------------------Ul6
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LIST OF MATERIALS
AS FRONT PANEL DISPLAY
CKT.REF.
PAGE 1 OF 1
ASSEMBLY #.6608-3409
REV.# 8
DESCRIPTION
TFT PART#
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IC CD4033BE
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IC SOCKETS 14 PIN
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1285-0704
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1600-3409
1065-1002
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PAGE 1 OF 3
LIST OF MATERIALS
ASSEMBLY (I. 6608-3410
REV.II B
A6 DISPLAY DRIVER
CKT.REF.
DESCRIPTION
TFT PART#
--------------------------------------------------------------------------Cl
C2
C3
C4
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C6
C7
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Cl0
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Cl3
Cl4
Cl5
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C27
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CAP
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CAP
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CAP
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CAP
CAP
CAP
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ELECT VERT MT lMF
ELECT VERT MT 47MF
ELECT VERT MT lMF
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MET POLY .OlMF
ELECT VERT MT lMF
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ELECT VERT MT lOMF
ELECT VERT MT 47MF
ELECT VERT MT lMF
ELECT VERT MT lMF
MET POLY .OlMF
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ELECT VERT MT lOMF
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CER CK05 .lMF
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1010-0009
1010-0009
1010-0048
1010-0009
1010-0009
1006-0002
1010-0009
1010-0099
1010-0099
1010-0470
1010-0009
1010-0009
1006-0002
1010-0009
1010-0099
1010-0099
1010-0048
1015-0001
1015-0001
1010-0099
1010-0099
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1010-0099
1008-0011
1015-0002
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CAP ELECT VERT MT lMF
DIODE HP2800
DIODE HP2800
LED HP5082-4487
DIODE ZENER 1N4734A
DIODE 1N4001 RECT
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CONN MOLEX PLUG 14 PIN
SOCKET MOLEX 6 PIN
PCB
TRANSISTOR 2N4121
TRANSISTOR 2N4275
TRANSISTOR 2N4121
TRANSISTOR 2N4275
TRANSISTOR 2N4121
TRANS!STOR 2N2222
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1271-4275
1010-0009
1282-2800
1282-2800
1285-4487
1283-4734
1283-4001
2250-6507
2250-6014
2250-5206
1600-3410
1271-4121
1271-4275
1271-4121
1271-4275
1271-4121
1271-2222
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PAGE 2 OF 3
LIST OF MATERIALS
ASSEMBLY II. 6608-3410
REV.II B
A6 DISPLAY DRIVER
DESCRIPTION
CKT.REF.
TFT PART II
--------------------------------------------------------------------------Rl
R2
R3
R4
R5
R6
R7
R8
R9
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Rl2
Rl3
Rl4
Rl5
Rl6
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Rl8
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R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R33
R34
R35
R36
R37
R38
R39
R40
R41
R42
R43
R44
R45
R46
R47
R48
STEAM POWERED RADIO.COM
MT FILM l/8W lOK .1%
MT FILM l/8W lOK .1%
MT FILM l/8W lOK .1%
COMP l/4W 100 5%
CAR
COMP l/4W 100 5%
CAR
MT FILM l/8W 200 1%
MT FILM l/8W 10.2K 1%
COMP l/4W 100 5%
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l/4W lOK 5%
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l/4W lOK 5%
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MT FILM l/8W 10.2K 1%
COMP l/4W 100 5%
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COMP l/4W 100 5%
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MT FILM l/8W 4.02K 1%
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COMP l/4W 100 5%
CAR
CAR COMP l/4W lOK 5%
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CAR COMP l/4W 270 5%
CAR COMP l/4W 270 5%
CAR COMP l/4W 200K 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 220 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W lK 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W lOK 5%
CAR COMP l/4W 220 5%
CAR COMP l/4W lK 5%
MT FILM l/8W 110 1%
CAR COMP l/4W lK 5%
CAR COMP l/4W lK 5%
VARIABLE lT lK
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CAR COMP l/4W lK 5%
CAR COMP l/4W 820 5%
CAR COMP l/4W 2.4K 5%
CAR COMP l/4W lOK 5%
COMP l/4W 100 5%
CAR
1058-1002
1058-1002
1058-1002
1065-0100
1065-0100
1061-0200
1061-1022
1065-0100
1065-0100
1065-1002
1061-4021
1061-4022
1065-0100
1065-1002
1061-0200
1061-1022
1065-0100
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1065-0100
1061-4021
1061-4022
1065-0100
1065-1002
1065-2003
1065-0270
1065-0270
1065-2003
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1065-0220
1065-1002
1065-1002
1065-1001
1065-1002
1065-1002
1065-1002
1065-0220
1065-1001
1061-0110
1065-1001
1065-1001
1072-1001
1065-1002
1065-1002
1065-1001
1065-0820
1065-2401
1065-1002
1065-0100
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PAGE 3 OF _3
LIST OF MATERIALS
ASSEMBLY II. 6608-3410
REV.II B
A6 DISPLAY DRIVER
CKT.REF.
TFT PART II
DESCRIPTION
--------------------------------------------------------------------------R49
RSO
R51
R52
R53
R54
R55
R56
R57
ll'58
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R60
R61
R62
R63
R64
R65
R66
R67
R68
R69
R70
R71
R72
R73
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R75
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RES
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CAR
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CAR COMP l/4W 27 5%
CAR COMP l/4W 4.7K 5%
RES
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CAR COMP l/4W 1.8K 5%
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MT FILM l/8W 634 1%
RES
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IC LF356
IC LM319
IC LM319
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IC CD4011
IC MC14538
IC MC14538
IC LM340T-5
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IC CD4518
IC SOCKET 8 PIN
IC SOCKET 14 PIN
IC SOCKET 16 PIN
5%
1065-0100
1065-4702
1065-0027
1065-4701
1065-2001
1065-8203
1065-1801
1065-1002
1065-1002
1065-4701
1072-2503
1065-0100
1061-0634
1065-1001
1100-0356
1100-0319
1100-0319
1100-1458
1100-0319
1102-4011
1102-4538
1102-4538
1100-7805
1100-0555
1102-4001
1102-4518
2250-1008
2250-1014
2250-1016
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Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.5 Linearized : Yes Author : TFT - Time and Frequency Technology Create Date : 2018:05:12 14:39:59-07:00 Keywords : TFT Model 844 FM Modulation Monitor and Stereo Monitor Manual, TFT 844 Mod Mon, TFT 844 FM Mod Mon, TFT 844 FM Modulation Monitor, TFT 844 Stereo Monitor Modify Date : 2018:05:12 15:18:37-07:00 Has XFA : No XMP Toolkit : Adobe XMP Core 5.6-c015 84.159810, 2016/09/10-02:41:30 Producer : Adobe Acrobat Pro DC 18 Paper Capture Plug-in Format : application/pdf Title : TFT Model 844 FM Modulation Monitor and Stereo Monitor Manual Description : TFT Model 844 FM Modulation Monitor and Stereo Monitor Manual Creator : TFT - Time and Frequency Technology Subject : TFT Model 844 FM Modulation Monitor and Stereo Monitor Manual, TFT 844 Mod Mon, TFT 844 FM Mod Mon, TFT 844 FM Modulation Monitor, TFT 844 Stereo Monitor Metadata Date : 2018:05:12 15:18:37-07:00 Document ID : uuid:278516b5-c597-483f-8308-344a7c047844 Instance ID : uuid:384eea53-bbbc-4b7e-abec-0e5861a1e16a Page Count : 78EXIF Metadata provided by EXIF.tools