Usb Part - LG SJ2 Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE

6. USB PART

Turn on USB
Check IC302 pin1
5.2 V input.
Check
Reading OK.
OK
YES
YES
YES
Power part troubleshooting.
NO
Check JK302 pin1 5.2 V.
NO
Check JK302 pin2(D-), pin3 (D+).
Check IC305 pin62, 64.
3-11
Refer to
NO
Check IC302
pin5 5.2 V input.
YES
NO