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VX9100
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved
Only for training and service purposes
CHAPTER 4. Trouble Shooting
CHAPTER 4. Trouble Shooting
4.1 Rx Part Trouble
4.1.1 DCN Rx
Test Point
Test Point
Check flow
Check flow
1. Check
DC Power Supply circuit
2. Check
VCTCXO
Rx TEST SETUP (Joyphone)
- Test C hannel: 384
- Test Band : US C ellular
- SID:
2004
- Sect or Power: - 30 dB m Spectrum Analyzer Setting
Oscilloscope Setting
Start
3. Check
Control signal
Redownload S /W , Cal
NO
4. Check
RF Signal path
5. Check
Rx I/Q data
Mobile S/W
VC
TC
X
O
Quintplexer
RFR6500
Содержание VX9100 Maroon
Страница 135: ...1 VX9100 Assembly Disassembly Diagram ...
Страница 136: ......
Страница 137: ......
Страница 138: ...2 VX9100 Block Circuit Diagram Main Key Pad FPCB ...
Страница 139: ...Block Diagram ...
Страница 141: ...Circuit Diagram Main Key Pad ...
Страница 142: ...Main Board Circuit ...
Страница 149: ...Keypad Circuit ...
Страница 151: ...3 VX9100 Part List Main Key Pad FPCB ...
Страница 161: ...4 VX9100 Component Layout ...
Страница 164: ...5 VX9100 BGA Pin Map ...
Страница 165: ...BOTTOM VIEW Unit mm USED NOT USED 1 MSM6550A U202 A1 Index Mark ...
Страница 166: ...2 HYC0SGH0MF3P 6S60E U300 Unit mm A1 Index Mark USED NOT USED BOTTOM VIEW All Pins assigned to Logic Signal and GND ...
Страница 167: ...3 MAX9775EBX T U301 TOP VIEW USED NOT USED ...
Страница 168: ...4 LP3922 U401 USED NOT USED BOTTOM VIEW ...
Страница 169: ...5 BD6085GUL U500 USED NOT USED BOTTOM VIEW ...