Wireless Intercom System Service Manual
PCB
Receive Assembly 878522
M
*
(Continued)
o
Ref
No.
Description
Part
No.
Crystals
and
Filters
Crystal Filter Insulator
450471
MX301
Mixer, ASK-1
760382
Y301'
Crystal, Receive, 171.905 MHz
780089-1
Y301
2
Crystal, Receive, 207.800 MHz
780089-2
Y301
3
Crystal, Receive, 213.800 MHz
780089-3
FL301
1
FL302
Filter, 10.7 Crystal
780087-0
FL303
Filter, 11.56 MHz Crystal
780087-4
FL303
2
,3
Filter, 11.075 MHz Crystal
780087-7
FL304'
Filter, 11.56 MHz
Cryst31
780087-4
FL304
2
,3
Filter, 11.075 MHz Crystal
780087-7
FL305'
Filter, 12.36 MHz Crystal
780087-5
FL305
2
,3
Filter, 11.7 MHz Crystal
780087-2
FL306'
Filter, 12.36 MHz Crystal
780087-5
FL306
2
,3
Filter, 11.7
MHz
Crystal
780087-2
FL307'
Filter, 13.1
MHz
Crystal
780087-6
FL307
2
,3
Filter, 12.5
MHz
Crystal
780087-3
FL308'
Filter, 13.1
MHz
Crystal
780087-6
FL308
2
,3
Filter, 12.5 MHz Crystal
780087-3
FL309
Filter, SFE 10.7 MHz
J red
52990001
All resistors in ohms, 1/8
Watt,
5%,
unless noted.
Resistors
R301
lK
52154060
R302 10K
52154036
R303
130
52154081
R304
10
52154108
R305
lK
52154060
R306
i
R307 100
52154084
R308
470
52154068
R308
2
,3
180
52154078
R309-R311 10K
52154036
R312 22
52154100
R313
240
52154075
R314 4.7K
52154044
R315 1.5K
52154056
R316 16K
52154031
R317
220
52154076
R318
330
52154072
R319
l.5K
52154056
R320
10M, 1/4 watt
52154185
R321
10K
52154036
R322
22K
52154028
R323
lOOK
52154012
R324
220K
52154004
R325-R327 10K
52154036
R328
68K
52154016
R329-R331 10K
52154036
R332
4.7K
52154044
R333 1.5K
52154056
R334
16K
52154031
R335, R336
220
52154076
R337
l.5K
52154056
R338
10M, 1/4 watt
52154185
R339
10K
52154036
R340 22K
52154028
R341
lOOK
52154012
R342 220K
52154004
R343-R345 10K
52154036
R346 68K
52154016
R347-R349 10K
52154036
R350 4.7K
52154044
Ref
No.
Description
Part
No.
R351
l.5K
52154056
R352 16K
52154031
R353, R354 220
52154076
R355
l.5K
52154056
R356
10M, 1/4 watt
52154185
R357
10K
52154036
R358
22K
52154028
R359
lOOK
52154012
R360 220K
52154004
R361-R363 10K
52154036
R364 68K
52154016
R365-R367 10K
52154036
R368 4.7K
52154044
R369
l.5K
52154056
R370
16K
52154031
R371, R372 220
52154076
R373
l.5K
52154056
R374
10M, 1/4 watt
52154185
R375
10K
52154036
R376
22K
52154028
R377
lOOK
52154012
R378
220K
52154004
R379-R381
10K
52154036
R382 68K
52154016
R383-R385 10K
52154036
R386 2.2K
52154052
R387-R390
10K
52154036
Connectors
P301-P307
(Not Used)
P308"P311
3 Pin Header
670062
P312
(Not Used)
P313
3 Pin Header
670062
Transformers
1'301-1'303
Transformer
724770
1'304,1'305 Transformer
724774
1'306,1'307 (Not Used)
1'308-1'324
Transformer 724774
Diodes
D301-D304 Diode, IN4148
52228000
878522-*
Frequency
*Dash No. Reference No.
169.505-171.905 MHz
-171 1
206.000-207.800 MHz
-207 2
212.000-213.800 MHz
-213 3
3-23