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Motorola Pro3100 Detailed Service Manual
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UHF Band 1 (403–
470 MHz) 1–25 W PCB
8485670Z02, Sch
ematics, and Parts
Lists
Section 5: 4-13
6881091C63-F
NU
NU
NU
0 VDC (Tx)
NU
NU
NU
NU
2.5 - 11 VDC
0 VDC (Rx)
4.58 VDC
4.58 VDC
NU
NU
13.5 to 16 dBm
NU
0 VDC (Tx)
3.1 VDC (Rx)
0 VDC (Tx)
4.7 VDC (Rx)
NU
(Tx)
4.54 VDC
0 VDC (Tx)
2.35 VDC
NU
0 VDC (Rx)
4.42 VDC (Rx)
NU
NU
NU
NU
NU
NU
NU
NU
NU
NU
NU
NU
NU
NU
NU
NU
4.97 VDC (Tx)
-18 to -16 dBm (Rx)
-16 to -11 dBm (Tx)
4 to 6 dBm
4.54 VDC
4.54 VDC (Tx)
2.6 VDC (Tx)
1.91 VDC (Tx)
0 VDC (Rx)
2.45 VDC (Rx)
(Rx)
2.43 VDC (Rx)
NU
NU
GND
C4301
100pF
30
R4313
C4372
VCTRL_UHF_VCO
L4331
33nH
VSF_UHF_VC0
C4318
0.1uF
Q4301
R4361
180
C4305
51pF
C4337
R4332
CR4303
C4382
VCOBIAS_2
5V_UHF_VCO
C4332
0
R4315
CR4311
C4381
C4313
.022uF
C4336
R4345
SH4301
SHIELD
R4302
10K
C4383
C4363
R4333
R4312
5.6K
C4309
100pF
C4315
100pF
19
TRB_IN
16
TX_BASE
15
TX_EMITTER
1
TX_IADJ
10
TX_OUT
13
TX_SWITCH
14
VCC_BUFFERS
18
VCC_LOGIC
GND_LOGIC
17
12
PRESC_OUT
5
RX_BASE
6
RX_EMITTER
2
RX_IADJ
8
RX_OUT
7
RX_SWITCH
3
SUPER_FLTR
U4301
4
COLL_RFIN
20
FLIP_IN
11
GND_BUFFERS
9
GND_FLAG
R4346
10K
50U54
L4312
RESONATOR
1P
1
2
P2
3
P3
C4314
1.5pF
C4307
100pF
C4352
0.1uF
C4321
Q4331
1pF
4
1
3
CR4301
Q4333
2
6
C4339
C4375
L4332
L4361
390nH
VCTRL
0
R4341
C4324
2.4pF
2.2K
R4342
6.8pF
TRB_UHF_VCO
C4331
C4304
3.9pF
C4333
C4374
C4335
100pF
270
R4314
7.5K
R4311
TXINJ_UHF_VCO
R4334
R4301
L4301
390nH
R4323
5.6K
100K
1K
R4343
C4353
0.1uF
C4312
12pF
390nH
L4305
C4323
R4337
C4317
PRESC
Q4332
68nH
L4333
390nH
L4371
56K
R4321
R4305
C4316
10
0
5V
0.1uF
R4347
C4338
R4336
51pF
2.2uF
C4354
C4351
100pF
22
R4331
C4373
R4339
PRESC_UHF_VCO
390nH
L4311
R4335
180
R4304
CR4321
10K
R4322
100pF
C4311
100pF
C4361
30
R4303
L4302
390nH
C4362
C4303
8.2pF
R4338
RXINJ
RXINJ_UHF_VCO
L4303
RESONATOR
1P
1
2
P2
3
P3
0.1uF
C4371
TXINJ
390nH
L4313
SHIELD
SH4302
TRB
C4334
C4306
2pF
C4355
2.2uF
VSF
VCOBIAS_2_UHF_VCO
VCOMOD
C4308
0.1uF
390nH
L4304
C4302
8.2pF
CR4302
10
R4344
C4322
4.7uF
C4325
VCOMOD_UHF_VCO
GROUND
R4340
5V
VSF
TXSW
TXSW
RXSW
RXSW
VSF
UHF Band 1 (403–470 MH
z) 1–25 W V
oltage Controlled Oscillator
ZWG0130523-A
262
264
Table of Contents
Product Safety and RF Exposure Compliance
2
Foreword
2
Manual Revisions
2
Computer Software Copyrights
2
Document Copyrights
2
Disclaimer
2
Trademarks
2
Document History
3
Section 1: Service Maintainability
7
Introduction
9
1.0 About this Manual
9
2.0 Warranty and Service Support
9
3.0 Radio Model Information
11
Maintenance
13
1.0 Introduction
13
2.0 Preventive Maintenance
13
3.0 Safe Handling of CMOS and LDMOS
14
4.0 General Repair Procedures and Techniques
14
5.0 Notes For All Schematics and Circuit Boards
17
Service Aids
23
1.0 Recommended Service Tools
23
2.0 Recommended Test Equipment
25
Section 2: Control Head Service Information
27
Overview
29
1.0 CDM750 / PRO3100 Model (GCN6112_)
29
2.0 CDM1250 / PRO5100 Model (GCN6113_)
29
3.0 CDM1550 Series / PRO7100 Model (GCN6114_)
30
4.0 Data Radio Series (GCN6116_)
30
Theory of Operation
31
1.0 Introduction
31
2.0 Control Head (CDM750 / PRO3100)
31
3.0 Control Head (CDM1250 / PRO5100 / CDM1550 Series / PRO7100)
34
Troubleshooting Charts
39
1.0 Control Head CDM750 / PRO3100 Troubleshooting Flow Charts
39
2.0 Control Head CDM1250 / PRO5100 / CDM1550 Series / PRO7100 Troubleshooting Flow Charts
41
Control Head PCBs, Schematics, and Parts Lists
45
1.0 Allocation of Schematics and Circuit Boards
45
2.0 Control Head CDM750 / PRO3100 PCB 8486146B07, Schematics, and Parts Lists
47
Control Head PCB 8486146B07 Parts List†
50
3.0 Control Head CDM1250 / PRO5100 / CDM1550 Series / PRO7100 PCB 8486155B06, Schematics, and Parts Lists
51
Control Head PCB 8486155B06 Parts List†
56
Section 3: Controller Service Maintainability
57
Theory of Operation
59
1.0 Controller Circuits
59
2.0 Controller Board Audio and Signaling Circuits
68
Troubleshooting Charts
79
1.0 Troubleshooting Flow Chart for Controller
79
Controller Schematics and Parts Lists
81
1.0 Allocation of Schematics and Circuit Boards
81
2.0 Controller T2 Schematics and Parts Lists
85
Controller T2 Parts List
90
3.0 Controller T5 Schematics and Parts Lists
92
Controller T5 Parts List
98
4.0 Controller T6/T7/T9 Schematics and Parts Lists
100
Controller T6/7 Parts List
109
Controller T9 Parts List (8471224L01)
111
5.0 Controller T11 Schematics and Parts Lists
113
Controller T11 Parts List
117
6.0 Controller T12 Schematics and Parts Lists
119
Controller T12 Parts List
124
7.0 Controller T12 Schematics and Parts Lists (8471224L04)
126
Controller T12 Parts List (8471224L04)
132
8.0 Controller T6/T7 Schematics and Parts Lists (8471235L06))
136
Controller T6/T7 Parts List (8471235L06)
142
Section 4: VHF (136–174 MHz) 1–25 W Service Information
147
Model Charts and Technical Specifications
149
1.0 VHF (136–174 MHz) 1–25W Model Charts
149
2.0 Technical Specifications
150
Theory of Operation
153
1.0 Introduction
153
2.0 VHF (136–174 MHz) 1–25W Receiver Front-End
153
3.0 VHF (136–174 MHz) 1–25W Transmitter Power Amplifier (PA) 25W
155
4.0 VHF (136–174 MHz) 1–25W Frequency Synthesis
157
Troubleshooting Charts
161
1.0 Troubleshooting Flow Chart for Receiver
161
2.0 Troubleshooting Flow Chart for 25 W Transmitter
163
3.0 Troubleshooting Flow Chart for Synthesizer
166
4.0 Troubleshooting Flow Chart for VCO
167
VHF (136–174 MHz) 1–25 W PCBs, Schematics, and Parts Lists
169
1.0 Allocation of Schematics and Circuit Boards
169
2.0 VHF (136–174 MHz) 1–25 W LDMOS PCB 8471235L04, Schematics, and Parts Lists
173
VHF 1–25 W PCB 8471235L04 Parts List†
177
3.0 VHF (136–174 MHz) 1–25 W PCB 8486172B04, Schematics, and Parts Lists
180
VHF 1–25 W PCB 8486172B04 Parts List†
187
4.0 VHF (136–174 MHz) 1–25 W PCB 8486172B06, Schematics, and Parts Lists
190
VHF 1–25 W PCB 8486172B06 Parts List†
197
5.0 VHF (136–174 MHz) 1–25 W PCB 8486172B07, Schematics, and Parts Lists
200
VHF 1–25 W PCB 8486172B07 Parts List†
204
6.0 VHF (136–174 MHz) 1–25 W PCB 8486172B08, Schematics, and Parts Lists
207
VHF 1–25 W PCB 8486172B08 Parts List†
211
7.0 VHF (136–174 MHz) 1–25 W PCB 8471235L06 Schematics, and Parts Lists
215
VHF 1–25 W PCB 8471235L06 Parts List†
222
Section 5: UHF Band 1 (403–470 MHz) 1–25 W Service Information
227
Model Charts and Technical Specifications
229
1.0 UHF Band 1 (403–470 MHz) 1–25 W Model Charts
229
2.0 Technical Specifications
230
Theory of Operation
233
1.0 Introduction
233
2.0 UHF Band 1 (403–470 MHz) 1–25 W Receiver Front-End
233
3.0 UHF Band 1 (403–470 MHz) 1–25W Transmitter Power Amplifier (PA) 25 W
235
4.0 UHF Band 1 (403–470 MHz) 1–25 W Frequency Synthesis
238
Troubleshooting Charts
243
1.0 Troubleshooting Flow Chart for Receiver
243
2.0 Troubleshooting Flow Chart for 25 W Transmitter
245
3.0 Troubleshooting Flow Chart for Synthesizer
248
4.0 Troubleshooting Flow Chart for VCO
249
5.0 Troubleshooting Flow Chart for PassPort
250
UHF Band 1 (403–470 MHz) 1–25 W PCBs, Schematics, and Parts Lists
251
1.0 Allocation of Schematics and Circuit Boards
251
2.0 UHF Band 1 (403–470 MHz) 1–25 W LDMOS PCB 8471224L03, Schematics, and Parts Lists
253
UHF B1 25–40 W PCB 8471224L03 Parts List†
256
3.0 UHF Band 1 (403–470 MHz) 1–25 W PCB 8485670Z02, Schematics, and Parts Lists
259
UHF B1 1–25 W PCB 8485670Z02 Parts List†
266
4.0 UHF Band 1 (403–470 MHz) 1–25 W PCB 8485670Z03, Schematics, and Parts Lists
269
UHF B1 1–25 W PCB 8485670Z03 Parts List†
276
5.0 UHF Band 1 (403–470 MHz) 1–25 W PCB 8471224L04, Schematics, and Parts Lists
279
UHF 1–25 W PCB 8471224L04 Parts Lists†
286
Section 6: UHF Band 2 (450–512/527 MHz) 1–25W Service Information
291
Model Charts and Technical Specifications
293
1.0 UHF Band 2 (450–512/527 MHz) 1–25 W Model Charts
293
2.0 Technical Specifications
294
Theory of Operation
297
1.0 Introduction
297
2.0 UHF Band 2 (450–512/527 MHz) 1–25W Receiver Front-End
297
3.0 UHF Band 2 (450–512/527 MHz) 1–25 W Transmitter Power Amplifier (PA) 25 W
299
4.0 UHF Band 2 (450–512/527 MHz) 1–25 W Frequency Synthesis
302
Troubleshooting Charts
307
1.0 Troubleshooting Flow Chart for Receiver
307
2.0 Troubleshooting Flow Chart for 25 W Transmitter
309
3.0 Troubleshooting Flow Chart for Synthesizer
312
4.0 Troubleshooting Flow Chart for VCO
313
5.0 Troubleshooting Flow Chart for PassPort
314
UHF Band 2 (450–512/527 MHz) 1–25 W PCBs, Schematics, and Parts Lists
315
1.0 Allocation of Schematics and Circuit Boards
315
2.0 UHF Band 2 (450–512/527 MHz) 1–25 W PCB 8485671Z03, Schematics, and Parts Lists
317
UHF B2 1–25 W PCB 8485671Z03 Parts List†
324
Section 7: Low Band Service Information
329
Model Charts and Technical Specifications
331
1.0 Low Band Range 1 (29.7–36 MHz) Model Charts
331
2.0 Low Band Range 2 (36–42 MHz) Model Charts
332
3.0 Low Band Range 3 (42–50 MHz) Model Charts
333
4.0 Technical Specifications
334
Theory of Operation
337
1.0 Introduction
337
2.0 Low Band Receiver Front-End
337
3.0 Low Band Transmitter Power Amplifier (PA) 60 W
340
4.0 Low Band Frequency Synthesis
343
Troubleshooting Charts
347
1.0 Troubleshooting Flow Chart for Receiver
347
2.0 Troubleshooting Flow Chart for Transmitter
349
3.0 Troubleshooting Flow Chart for Synthesizer
350
4.0 Troubleshooting Flow Chart for VCO
351
Low Band PCBs, Schematics, and Parts Lists
353
1.0 Allocation of Schematics and Circuit Boards
353
2.0 Low Band Range 1 (29.7–36 MHz) PCBs, Schematics, and Parts Lists
357
Low Band R1 PCB 8486206B06 Parts List†
371
Low Band R1 PCB 8486206B08 Parts List†
374
3.0 Low Band Range 2 (36–42 MHz) PCBs, Schematics, and Parts Lists
380
Low Band Range 2 PCB 8486207B07 Parts List
400
Low Band Range 2 PCB 8486207B08 Parts List
406
Low Band Range 2 PCB 8486207B11 Parts List
413
4.0 Low Band Range 3 (42–50 MHz) PCBs, Schematics, and Parts Lists
418
Low Band R3 PCB 8485908Z02 Parts List†
432
Low Band R3 PCB 8485908Z04 Parts List†
435
Low Band Range 3 PCB 8485908Z05 Parts List
441
Low Band Range 3 PCB 8485908Z08 Parts List
448
Section 8: VHF (136–174 MHz) 25–45 W Bipolar Service Information
453
Model Charts and Technical Specifications
455
1.0 VHF (136–174 MHz) 25–45 W Bipolar Model Charts
455
2.0 Technical Specifications
456
Theory of Operation
459
1.0 Introduction
459
2.0 VHF (136–174 MHz) 25–45 W Bipolar Receiver Front-End
459
3.0 VHF (136–174 MHz) 25–45 W Bipolar Transmitter Power Amplifier (PA) 45 W
461
4.0 VHF (136–174 MHz) 25–45 W Bipolar Frequency Synthesis
463
Troubleshooting Charts
467
1.0 Troubleshooting Flow Chart for Receiver
467
2.0 Troubleshooting Flow Chart for 45 W Transmitter
469
3.0 Troubleshooting Flow Chart for Synthesizer
471
4.0 Troubleshooting Flow Chart for VCO
472
VHF (136–174 MHz) 25–45 W Bipolar PCBs, Schematics, and Parts Lists
473
1.0 Allocation of Schematics and Circuit Boards
473
2.0 VHF (136–174 MHz) 25–45 W Bipolar PCB 8486140B12, Schematics, and Parts Lists
475
VHF 25–45 W PCB 8486140B12 Parts List†
482
3.0 VHF (136–174 MHz) 25–45 W Bipolar PCB 8486140B13, Schematics, and Parts Lists
485
VHF 25–45 W PCB 8486140B13 Parts List†
488
Section 9: UHF Band 1 (403–470 MHz) 25–40 W Bipolar Service Information
491
Model Charts and Technical Specifications
493
1.0 UHF Band 1 (403–470 MHz) 25–40 W Bipolar Model Charts
493
2.0 Technical Specifications
494
Theory of Operation
497
1.0 Introduction
497
2.0 UHF Band 1 (403–470 MHz) 25–40 W Bipolar Receiver Front-End
497
3.0 UHF Band 1 (403–470 MHz) 25–40 W Bipolar Transmitter Power Amplifier (PA) 40W
499
4.0 UHF Band 1 (403–470 MHz) 25–40 W Bipolar Frequency Synthesis
501
Troubleshooting Charts
505
1.0 Troubleshooting Flow Chart for Receiver
505
2.0 Troubleshooting Flow Chart for 40W Transmitter
507
3.0 Troubleshooting Flow Chart for Synthesizer
508
4.0 Troubleshooting Flow Chart for VCO
509
5.0 Troubleshooting Flow Chart for PassPort
510
UHF Band 1 (403–470 MHz) 25–40 W Bipolar PCBs, Schematics, and Parts Lists
511
1.0 Allocation of Schematics and Circuit Boards
511
2.0 UHF Band 1 (403–470 MHz) 25–40 W Bipolar PCB 8480643Z06, Schematics, and Parts Lists
513
UHF B1 25–40 W PCB 8480643Z06 Parts List†
520
Section 10: UHF Band 2 (450–512/520 MHz) 25–40W Bipolar Service Information
525
Model Charts and Technical Specifications
527
1.0 UHF Band 2 (450–512/520 MHz) 25–40 W Bipolar Model Charts
527
2.0 Technical Specifications
528
Theory of Operation
531
1.0 Introduction
531
2.0 UHF Band 2 (450–512/520 MHz) 25–40 W Bipolar Receiver Front- End
531
3.0 UHF Band 2 (450–512/520 MHz) 25–40 W Bipolar Transmitter Power Amplifier (PA) 40W
533
4.0 UHF Band 2 (450–512/520 MHz) 25–40 W Bipolar Frequency Synthesis
535
Troubleshooting Charts
539
1.0 Troubleshooting Flow Chart for Receiver
539
2.0 Troubleshooting Flow Chart for 40 W Transmitter
541
3.0 Troubleshooting Flow Chart for Synthesizer
542
4.0 Troubleshooting Flow Chart for VCO
543
5.0 Troubleshooting Flow Chart for PassPort
544
UHF Band 2 (450–512/520 MHz) 25–40 W Bipolar PCBs, Schematics, and Parts Lists
545
1.0 Allocation of Schematics and Circuit Boards
545
2.0 UHF Band 2 (450–512/520 MHz) 25–40 W Bipolar PCB 8480645Z04, Schematics, and Parts Lists
547
UHF B2 25–40 W PCB 8480645Z04 Parts List†
554
Section 11: VHF (136–174 MHz) 25–45 W LDMOS Service Information
559
Model Charts and Technical Specifications
561
1.0 VHF (136–174 MHz) 25–45 W LDMOS Model Charts
561
2.0 Technical Specifications
562
Theory of Operation
565
1.0 Introduction
565
2.0 VHF (136–174 MHz) 25–45 W LDMOS Receiver Front-End
565
3.0 VHF (136–174 MHz) 25–45W LDMOS Transmitter Power Amplifier (PA) 45 W
567
4.0 VHF (136–174 MHz) 25–45 W LDMOS Frequency Synthesis
569
Troubleshooting Charts
573
1.0 Troubleshooting Flow Chart for Receiver
573
2.0 Troubleshooting Flow Chart for 45 W Transmitter
575
3.0 Troubleshooting Flow Chart for Synthesizer
578
4.0 Troubleshooting Flow Chart for VCO
579
VHF (136–174 MHz) 25–45 W LDMOS PCBs, Schematics, and Parts Lists
581
1.0 Allocation of Schematics and Circuit Boards
581
2.0 VHF (136–174 MHz) 25–45 W LDMOS PCB 8486140B15, Schematics, and Parts Lists
583
VHF 25–45 W PCB 8486140B15 Parts List†
590
4.0 VHF (136–174 MHz) 25–45 W LDMOS PCB 8471234L02, Schematics, and Parts Lists
593
VHF PCB 8471234L02 Parts List
600
Section 12: UHF Band 1 (403–470 MHz) 25–40 W LDMOS Service Information
603
Model Charts and Technical Specifications
605
1.0 UHF Band 1 (403–470 MHz) 25–40 W LDMOS Model Charts
605
2.0 Technical Specifications
606
Theory of Operation
609
1.0 Introduction
609
2.0 UHF Band 1 (403–470 MHz) 25–40 W LDMOS Receiver Front-End
609
3.0 UHF Band 1 (403–470 MHz) 25–40 W LDMOS Transmitter Power Amplifier (PA) 40W
611
4.0 UHF Band 1 (403–470 MHz) 25–40 W LDMOS Frequency Synthesis
613
Troubleshooting Charts
617
1.0 Troubleshooting Flow Chart for Receiver
617
2.0 Troubleshooting Flow Chart for 40 W Transmitter
619
3.0 Troubleshooting Flow Chart for Synthesizer
621
4.0 Troubleshooting Flow Chart for VCO
622
5.0 Troubleshooting Flow Chart for PassPort
623
UHF Band 1 (403–470 MHz) 25–40 W LDMOS PCBs, Schematics, and Parts Lists
625
1.0 Allocation of Schematics and Circuit Boards
625
2.0 UHF Band 1 (403–470 MHz) 25–40 W LDMOS PCB 8486127Z01, Schematics, and Parts Lists
627
UHF B1 25–40 W PCB 8486127Z01 Parts List†
634
3.0 UHF Band 1 (403–470 MHz) 25–40 W LDMOS PCB 8471223L02, Schematics, and Parts Lists
638
UHF B1 25–40 W PCB 8471223L02 Parts List
645
Section 13: UHF Band 2 (450–512/520 MHz) 25–40 W LDMOS Service Information
649
Model Charts and Technical Specifications
651
1.0 UHF Band 2 (450–512/520 MHz) 25–40 W LDMOS Model Charts
651
2.0 Technical Specifications
652
Theory of Operation
655
1.0 Introduction
655
2.0 UHF Band 2 (450–512/520 MHz) 25–40 W LDMOS Receiver Front- End
655
3.0 UHF Band 2 (450–512/520 MHz) 25–40 W LDMOS Transmitter Power Amplifier (PA) 40 W
657
4.0 UHF Band 2 (450–512/520 MHz) 25–40 W LDMOS Frequency Synthesis
660
Troubleshooting Charts
665
1.0 Troubleshooting Flow Chart for Receiver
665
2.0 Troubleshooting Flow Chart for 40 W Transmitter
667
3.0 Troubleshooting Flow Chart for Synthesizer
668
4.0 Troubleshooting Flow Chart for VCO
669
5.0 Troubleshooting Flow Chart for PassPort
670
UHF Band 2 (450–512/520 MHz) 25–40 W LDMOS PCBs, Schematics, and Parts Lists
671
1.0 Allocation of Schematics and Circuit Boards
671
2.0 UHF Band 2 (450–512/520 MHz) 25–40 W LDMOS PCB 8486250Z02, Schematics, and Parts Lists
673
UHF B2 25-40 W PCB 8486250Z02 Parts List†
680
Appendix A Replacement Parts Ordering
685
A.1 Basic Ordering Information
685
A.2 Motorola Online
685
A.3 Mail Orders
685
A.4 Telephone Orders
685
A.5 Fax Orders
685
A.6 Parts Identification
686
A.7 Product Customer Service
686
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Motorola Pro3100 Specifications
General
Brand
Motorola
Model
Pro3100
Category
Two-Way Radio
Language
English
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