LG GX200 - Page 66

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4.5.3 Checking Flow
SIM LED will
operate properly
Start
Enter the Engineer Mode and
set Starus LED ON
Re-work or change
SIM1 (LED1308)
SIM2 (LED1307)
And Try again
Check Voltage of
TP1 (SIM1) TP2(SIM2)
stauts ?
Re-work or change
CPU (401)
Try again
Check Voltage of
TP3,TP4 stauts ?
NO
YES
YES
YES
NO
Re-work or change
U1401 and around
Component Try again
Check Voltage of
TP1,TP2 stauts ?
NO
YES