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Troubleshooting Flow Chart for 40 W Transmitter
Section 10: 3-3
2.0
Troubleshooting Flow Chart for 40 W Transmitter
No
Is Q5441 OK?
Yes
I
s drive from VCO
>+4dBm?
No
Is voltage drop across
R5497 >4.5V?
No
Check Q5431 gate(open)
and drain resistances
(11kohm)
No
Check Q5421 gate(open)
and drain resistances
(11kohm)
No
PCIC_MOSBIAS_1
Check
No
No
Change
Q4573
START
No power
Is Vctrl
there?
Is Q5573
OK?
Check voltage
on U5501, pin 4
Check voltage
on U5501, pin 5
Check R5422-5
and go back to top
Troubleshoot
ASFIC
Change
PCIC
Check R5409 and
R5473 and go back
to top
Check
MOSBIAS_2
Check
ASFIC
Are D5471 &
D5472 OK?
Change
D5471 &
D5472
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Check
PCIC
Yes
Change Q5421
Change Q5431
Yes
Change U5401
Yes
Do visual check
on all components
No
Change Q5441
Troubleshoot
VCO
Check voltage
on TP5531
Содержание PRO Series
Страница 1: ...CDM Series and PRO Series Two Way Mobile Radios Detailed Service Manual 6881091C63 F ...
Страница 4: ...Notes ...
Страница 6: ...Notes ...
Страница 8: ...Section 1 ii 6881091C63 F Notes ...
Страница 12: ...Section 1 1 4 Radio Model Information 6881091C63 F Notes ...
Страница 22: ...Section 1 2 10 Notes For All Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 46: ...Section 2 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 78: ...Section 3 1 20 Controller Board Audio and Signaling Circuits Section 6881091C63 F Notes ...
Страница 80: ...Section 3 2 2 Troubleshooting Flow Chart for Controller 6881091C63 F Notes ...
Страница 84: ...Section 3 3 4 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 146: ...Section 3 3 66 Controller T6 T7 Schematics and Parts Lists 8471235L06 Notes 6881091C63 F ...
Страница 152: ...Section 4 1 4 Technical Specifications 6881091C63 F Notes ...
Страница 168: ...Section 4 3 8 Troubleshooting Flow Chart for VCO 6881091C63 F Notes ...
Страница 172: ...Section 4 4 4 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 214: ...Section 4 4 46 VHF 136 174 MHz 1 25 W PCB 8486172B08 Schematics and Parts Lists Notes 6881091C63 F ...
Страница 232: ...Section 5 1 4 Technical Specifications 6881091C63 F Notes ...
Страница 242: ...Section 5 2 10 UHF Band 1 403 470 MHz 1 25 W Frequency Synthesis 6881091C63 F Notes ...
Страница 296: ...Section 6 1 4 Technical Specifications 6881091C63 F Notes ...
Страница 306: ...Section 6 2 10 UHF Band 2 450 512 527 MHz 1 25 W Frequency Synthesis 6881091C63 F Notes ...
Страница 316: ...Section 6 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 328: ...Section 6 4 14 UHF Band 2 450 512 527 MHz 1 25 W PCB 8485671Z03 Schematics and Parts Lists Notes 6881091C63 F ...
Страница 352: ...Section 7 3 6 Troubleshooting Flow Chart for VCO 6881091C63 F Notes ...
Страница 356: ...Section 7 4 4 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 458: ...Section 8 1 4 Technical Specifications Section 6881091C63 F Notes ...
Страница 474: ...Section 8 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 496: ...Section 9 1 4 Technical Specifications Section 6881091C63 F Notes ...
Страница 512: ...Section 9 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 524: ...Section 9 4 14 UHF Band 1 403 470 MHz 25 40 W Bipolar PCB 8480643Z06 Schematics and Parts Lists Notes 6881091C63 F ...
Страница 530: ...Section 10 1 4 Technical Specifications Section 6881091C63 F Notes ...
Страница 546: ...Section 10 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 558: ...Section 10 4 14 UHF Band 2 450 512 520 MHz 25 40 W Bipolar PCB 8480645Z04 Schematics and Parts Lists Notes 6881091C63 F ...
Страница 564: ...Section 11 1 4 Technical Specifications 6881091C63 F Notes ...
Страница 580: ...Section 11 3 8 Troubleshooting Flow Chart for VCO 6881091C63 F Notes ...
Страница 582: ...Section 11 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 608: ...Section 12 1 4 Technical Specifications 6881091C63 F Notes ...
Страница 624: ...Section 12 3 8 Troubleshooting Flow Chart for PassPort 6881091C63 F Notes ...
Страница 626: ...Section 12 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 648: ...Section 12 4 24 UHF Band 1 403 470 MHz 25 40 W LDMOS PCB 8471223L02 Schematics and Parts Lists Notes 6881091C63 F ...
Страница 654: ...Section 13 1 4 Technical Specifications 6881091C63 F Notes ...
Страница 664: ...Section 13 2 10 UHF Band 2 450 512 520 MHz 25 40 W LDMOS Frequency Synthesis 6881091C63 F Notes ...
Страница 672: ...Section 13 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Страница 684: ...Section 13 4 14 UHF Band 2 450 512 520 MHz 25 40 W LDMOS PCB 8486250Z02 Schematics and Parts Lists Notes 6881091C63 F ...