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1-2 Bluetooth (PMLN7252_S) Troubleshooting Chart

1.1 Bluetooth (PMLN7252_S)Troubleshooting Chart (Sheet 2 of 4)

A

0-1.8V square

wave

@32.768kHz

present?

Yes

No

Replace Y7101

Use oscilloscope to

check 26MHz clock

output on pin 3 of

Y8302_3

26MHz

present?

Yes

No

Replace

Bluetooth/Wifi/GNSS

Expansion Board

Replace Y8302_3

Table of Contents

Front Cover1
Foreword3
Document History5
Commercial Warranty7
Table of Contents11
Summary of Printed Circuit Boards and Bands available13
Chapt1_Service Maintainability15
- Section 1 Introduction17
- Section 2 Maintenance17
- Section 3 Test Equipment and Service Aids17
- Section 4 Power-Up Self Test17
- Introduction19
  - 1.0 Notations Used in This Manual19
  - 2.0 Radio Description19
- Maintenance21
- Test Equipment and Service Aids27
- Power-Up Self Test31
  - 1.0 Power-Up Error Codes31
Chapt2_Radio Block Diagram33
- Section 135
- 1.0 MOTOTRBO XPR 5350e/XPR 5550e Mobile Radio Block Diagram37
Chapt3_Control Head39
- Section 1 Overview41
- Section 2 Troubleshooting Charts41
- Section 3 Control Head PCBs/Schematics/Parts lists41
- Overview43
  - 1.0 Numeric Display Model43
  - 2.0 Color Display Model44
- Troubleshooting Charts45
  - 1.0 Numeric Display Model Control Head Troubleshooting Flow Chart45
    - 1.1 On/Off45
  - 2.0 Color Display Model Control Head Troubleshooting Flow Chart46
- Control Head PCBs/Schematics/Parts lists49
Chapt4_Bluetooth/WiFi/GNSS57
- Section 1 Troubleshooting Charts59
- Section 2 Bluetooth/Wi-Fi/GNSS PCBs/Schematics/Parts Lists59
- Troubleshooting Charts61
- Bluetooth/Wi-Fi/GNSS PCBs/Schematics/Parts Lists71
Chapt5_GOB81
- Section 1 Troubleshooting Chart83
- Section 2 Generic Option Board (GOB) PCBs/Schematics/Parts List83
- Troubleshooting Chart85
  - 1.0 Generic Option Board (GOB) Troubleshooting Chart85
- Generic Option Board (GOB) PCBs/Schematics/Parts List87
Chapt6_Controller93
- Section 1 Troubleshooting Charts95
- Section 2 Controller Schematics/Parts Lists95
- Troubleshooting Charts97
- Controller Schematics/Parts Lists103
Chapt7_VHF_Low Power117
- Section 1 Troubleshooting Charts119
- Section 2 VHF PCB/Schematics/Parts List119
- Troubleshooting Charts121
- VHF PCB/Schematics/Parts List135
  - 1.0 Allocation of Schematics and Circuit Boards135
    - 1.1 VHF 25W Circuits135
  - 2.0 VHF (136–174 MHz) 1–25W PCB/Schematics/Parts List137
Chapt8_VHF_High Power155
- Section 1 Troubleshooting Charts157
- Section 2 VHF PCB/Schematics/Parts Lists157
- Troubleshooting Charts159
- VHF PCB/Schematics/Parts Lists173
  - 1.0 Allocation of Schematics and Circuit Boards173
    - 1.1 VHF 45W Circuits173
  - 2.0 VHF (136–174 MHz) 25–45W PCB/Schematics/Parts List175
Chapt9_UHF_1 Low Power193
- Section 1 Troubleshooting Charts195
- Section 2 UHF1 PCB/Schematics/Parts List195
- Troubleshooting Charts197
- UHF1 PCB/Schematics/Parts List211
  - 1.0 Allocation of Schematics and Circuit Boards211
    - 1.1 UHF1 25W Circuits211
  - 2.0 UHF1 (403–470 MHz) 1–25W PCB/Schematics/Parts List213
Chapt10_UHF_1 High Power231
- Section 1 Troubleshooting Charts233
- Section 2 UHF1 PCB/Schematics/Parts Lists233
- Troubleshooting Charts235
- UHF1 PCB/Schematics/Parts Lists249
  - 1.0 Allocation of Schematics and Circuit Boards249
    - 1.1 UHF1 40W Circuits249
  - 2.0 UHF1 (403–470 MHz) 25–40W PCB/Schematics/Parts List251
Chapt11_UHF_2269
- Section 1 Troubleshooting Charts271
- Section 2 UHF2 PCB/Schematics/Parts Lists271
- Troubleshooting Charts273
- UHF2 PCB/Schematics/Parts Lists287
  - 1.0 Allocation of Schematics and Circuit Boards287
    - 1.1 UHF2 40W Circuits287
  - 2.0 UHF2 (450–512 MHz) 1–40W PCB/Schematics/Parts List289
Chapt12_800/900 MHz311
- Section 1 Troubleshooting Charts313
- Section 2 800/900 MHz PCB/Schematics/Parts Lists313
- Troubleshooting Charts315
- 800/900 MHz PCB/Schematics/Parts Lists331
  - 1.0 Allocation of Schematics and Circuit Boards331
    - 1.1 800/900 MHz 35W/30W Circuits331
  - 2.0 800/900 MHz (806–941 MHz) 10–35/30W PCB/Schematics/Parts List333
Appendix A Replacement Parts Ordering351
- Appendix A Replacement Parts Ordering351
Appendix B Motorola Service Centers353
- Appendix B Motorola Service Centers353
Glossary355
- Glossary355
Back Cover358

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