LG XA64 - Ic600 Troubleshooting

6. IC600 TROUBLESHOOTING
IC600 troubleshooting
Refer to power supply no 3.3V
or check and replace Q600
Check or replace L600
YES
YES
YES
YES
NO
NO
Check
both end voltage
Q600 (3.3V)
Check
IC604 pin13 is 3.3V
Check IC603 pin5 is "H",
check and replace Q601
Check or replace X601
NO
NO
Check Q601 is "H"
Check
IC600 pin1, 6 and X601
operation
OK
3-7
ELECTRICAL TROUBLESHOOTING GUIDE