LG FH6 - Page 44

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ELECTRICAL TROUBLESHOOTING GUIDE
POWER SUPPLY ON MAIN BOARD
YES
YES
YES
No 5 V (USB)
Check 5 V output of IC305.
Check IC306 and replace.
Check IC501 pin22 (USB_PCTRL).
NO
NO
Is the VCC supplied to IC306 pin1?
Is there signal at IC306 pin3?