Usb Trouble - LG CF360 Service Manual

4. TROUBLE SHOOTING

4.2 USB Trouble

(Measure during the state of
VDDE_1V8 (C523) is same to 1.8V?
ACC_USB_PUEN is 1.8V?
LGE Internal Use Only
START
USB module running)
Yes
Yes
Yes
Finish
< Main Board – Bottom side >
No
Resolder C523
No
Change main board
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USB module
C523
Only for training and service purposes