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VX9100
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved
Only for training and service purposes
Checking Flow
Checking Flow
START
Voltage at R306 is
Check audio signal at R301, R302
Check the state of contact of speaker
Speaker will work properly
YES
NO
NO
YES
Replace MSM or Main Board
Check the soldering at
R301, R302
Resolder R301, R302
Replace speaker
NO
YES
YES
Replace U301
NO
NO
YES
YES
about 3.4~4.2V
NO
Check the Battery Voltage
Check audio signal at C314, C315
Check the soldering at
C314, C315
Resolder C314, C315
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 ...