LG SJ2 - Usb Part

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ELECTRICAL TROUBLESHOOTING GUIDE
6. USB PART
YES YES
NO
NO
YES
YES
Turn on USB
OK
Refer to
Power part troubleshooting.
Check JK302 pin1 5.2 V.
Check JK302 pin2(D-), pin3 (D+).
Check IC305 pin62, 64.
NO
NO
Check IC302 pin1
5.2 V input.
Check IC302
pin5 5.2 V input.
Check
Reading OK.