Motorola Vhf Schematics Manual

VHF 1-25W PCB 8486172B07 / Schematics4-23
4.0 VHF 1-25W PCB 8486172B07 / Schematics
C0101
C0102 C0104
C0106
C0107
C0131
C0132 C0211
C0212
C0221C0222
C0223
C0224
C0225
C0226
C0227
C0228
C0231
C0232
C0233
C0234C0235
C0236
C0237
C0241
C0242
C0243
C0244C0245 C0246
C0251
C0252 C0253 C0256
C0261
C0262
C0421
C0441
C0442
C0443
C0445
C0446
C0447
C0448
C0449
C0470
C0471
C0472
C0473
C0474
C0476
C0477
C0478
C0482
C0483
C0484
C0486
C0487
C0488
C0490
C0493
C0494
C0495 C0496
C0501C0502
C0503
C0504
C0505
C0506
C0508...

4-24VHF 1-25W PCB 8486172B07 / Schematics
C0103C0105
C 0 111 C0112C0121
C0122
C0123
C0141
C0151 C0201C0202
C0203
C0204
C0205
C0254C0255
C0265
C0266 C0267
C0271C0272
C0273C0274 C0275
C0276 C0277
C0301
C0302
C0303C0304
C0305 C0324
C0325
C0331
C0341
C0342
C0343
C0344
C0351
C0352
C0353 C0354 C0422 C0423
C0426
C0427
C0428
C0429
C0430
C0431
C0485 C0491 C0492
C0497
C0499C0541C0554 C0558C0559
C0560C0575
C0576 C0591
C0592C0593
C0611
C0621C0622 C0641
C0644C0645
C0661C0662
C0663
C0671 C3000
C3001C3003
C3022C3023...

VHF 1-25W PCB 8486172B07 / Schematics4-25
ZWG0130565-O
9180469V03
3.9VDC
 12.5kHz  0VDC
20/25kHz  5VDC
0.75VDC
0.75VDC
3VDC9180469V069180469V04
9180468v04
9180468V06
3VDC
6.8K R3107 9V3
R3135
1.2K 390
1
GND1
GND2 2
GND3 4
5
GND4
3
IN6
OUTR3115
FL3101
12R16R3117
27K
Q3102Q3151
680 R3146 620nH L3111 620 R3108
R3118
6.8K
R3111
12K C31015V_VHF_IF_1
GND24
1
IN2
OUT
NU 2.2pFFL31113GND1
U3115-1CNTL
131 2VDD
14VSS7
DISCAUDIO_VHF_IF_1 15K R31320.1uF C3144
120pF C3143
C3139
C3141
0.1uF 0.1uF
131 2VDD
14VSS7
Q3141...

4-26VHF 1-25W PCB 8486172B07 / Schematics
0VDC 5VDC 5VDC
(SOURCE)
-2 to +7dBm 13.30VDC
6.83VDC
4.52VDC (R)
+1dBm
0VDC (R) 4.95VDC (R)
2.90VDC
3.42VDC3.63VDC
2.5VDC 1.1-4.1VDC
0VDC (T)
2.62VDC (T)
4.91VDC (T)
Temp.
Comp.
Xtal
Ref.Osz.
11.28VDC4.97VDC
2.5-11VDC
5VDC (LOCKED)
0VDC (UNLOCKED)
R3203A15
A24
A3
K1 1K2 2K3 3
47 D32016
47K
NU
TRBL3232
2.2uH
NUR3228
C3231 C3225
.01uF L3201
390nH
0.1uF C3202
.01uF
100 R3223C3229
D3221
0.1uF.047uF
CLK
C3251 C3207
22pF
NU47K
VCOBIAS_2 R3225
C3226
8.2pF
MODIN_VHF_FN_1...

VHF 1-25W PCB 8486172B07 / Schematics4-274.1 VHF PCB 8486172B07 Parts List 1-25W
Circuit 
RefMotorola Part 
No.DescriptionC3000
2113741F37
3.3nF 50V
C3001 2113740F19 4.7pF 5%
C3002
2113740F26
9.1pF 5%
C3003 2113741F37 3.3nF 50V
C3004
2113740F45
56pF 5%
C3005 2113740F51 100pF 5%
C3006
2113740F45
56pF 5%
C3007 2113741F37 3.3nF 50V
C3008
2113741F25
1nF 50V
C3009 2113741F13 330pF 50V
C3010
2113741F13
330pF 50V
C3011 2113741F37 3.3nF 50V
C3012
2113741F25
1nF 50V
C3013 2113740F45 56pF 5%
C3014
2113740F24
7.5pF...

4-28VHF 1-25W PCB 8486172B07 / SchematicsD3004 4805649Q13 VCTR 1SV228 SOT23D3011
4880142L01
PIN
D3031 4886143B01 MIXER DIODE CROSSOVER
D3101
4880154K03
DIODE DUAL SCHOTTKY
D3201 4802233J09 TRIPLE SOT143-RH
D3221
4880236E05
CHIP SCHOTTKY
D3341 4805649Q13 VCTR 1SV228 SOT23
D3361
4805649Q13
VCTR 1SV228 SOT23
D3362 4862824C01 VARACTOR CHIP
D3401
4813833C02
DUAL SOT MMBD6100
D3451 4880236E05 CHIP SCHOTTKY
D3471
4802482J02
PIN MA/COM
D3472 4802482J02 PIN MA/COM
FL3101
9180112R16
44.85 MHZ CRYSTAL FLTR 
80dB...

VHF 1-25W PCB 8486172B07 / Schematics4-29
* Motorola Depot Servicing only
Reference designators with an asterisk indicate 
components which are not fieldreplaceable 
because they need to be calibrated with 
specialized factory equipment after installation. 
Radios in which these parts have been replaced in 
the field will be off frequency at temperature 
extremes. R3426 0662057C13 2R7 1/10W 5%
R3427
0662057C13
2R7 1/10W 5%
R3428 0662057A58 2k4 1/16W 5%
R3429
0662057A33
220 1/16W 5%
R3431 0680194M18 51 1W...

4-30VHF 25-45W PCB 8486140B12 / Schematic
5.0 VHF 25-45W PCB 8486140B12 / Schematic
C0101C0102 C0104
C0106
C0107
C0131
C0132 C0211
C0212
C0221C 0222
C0223 C0224
C0225
C0226
C0227
C0228
C0231
C0232
C 0233
C0234C0235
C0236
C0237
C0241
C0242
C0243
C0244
C0245 C0246
C0251
C0252 C0253C0256
C0261
C0262
C0421C0441 C0442 C0443
C0445C0446
C0447
C0448
C0449 C0451
C0452
C0453
C0455
C0456
C0457
C0458
C0459
C0460
C0461
C0462
C0463
C0464
C0466
C0467
C0468
C0470
C0471
C0472
C0473
C0474
C0476
C0477
C0478
C0482
C0483...

VHF 25-45W PCB 8486140B12 / Schematic4-31
C0103C0105
C 0 111 C0112C0121
C0122 C0123
C0141
C0151 C0201C0202
C0203
C0204 C0205
C0254C0255
C0265
C0266C0267
C0271C0272
C0273C0274
C0275
C0276 C0277
C0301
C0302
C0303C0304
C0305 C0324C0325
C0331
C0341
C0342
C0343
C0344
C0351
C0352
C0353 C0354
C0401
C0402
C0403
C0406
C0407
C0408
C0409
C0410
C0411C0422
C0423C0426
C0427C0428
C0429C0430
C0431 C0485C0491 C0492
C0497
C0499C0541C0554 C0558C0559
C0560C0575
C0576 C0591
C0592C0593
C0611
C0621C0622 C0641
C0644 C0645...

4-32VHF 25-45W PCB 8486140B12 / Schematic
4.953x8.763
0 to 5 dBm
J3401
1.524x8.751
Spacing: 0.254
2.68V (28W) 0.75V
3.77V (50W) 8.87V
2.77V (50W)
2.65V (28W) 5.20V (28W) 5.45V (50W)3.70V-3.90V2.75V-2.90V2.66V (28W) 3.71V (50W)
1.524x20.696
1.905x15.685
C3489
130pF
.022uFC3471 C3409
390pF C3442 2200pF
NU RT3471
50K
NU R3476
220Q3471NU R3459
0
NU R3409
4.7KDATAR3509
10KC3492
470pF
R3441
51
150K R3408C3429
20pFC3451
18pF
NUC3430
33pF1000pFC3466
5.6K R3417
NU11pF C3464 D3451 C3468
18pF
82K5.6K
R3410220pF...