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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
Check pin2(TP1) at U100
Check if there is any major difference referring
To Figure 4.1.1 (e). Is any signal detected at
that point?
Start
Replace U100
RF signal path is OK. See next page to Rx I/Q data signal
NO
YES
YES
Is any signal detected at
that point?
Check L101,C101,L132
NO
Check pin3(TP2) at DP100
Check if there is any major difference referring
To Figure 4.1.1 (f ). Is any signal detected at
that point?
YES
Replace DP100
NO
YES
Is any signal detected at
that point?
Check L114,C126,L118,C127
NO
YES
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 ...