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14. USB Trouble Shooting
Check USB 2.0 Cable
Y
Check USB device
If devuce is 2.5 inch HDD,
Check power adaptor
Y
Check P704
Y
Check 5V voltage level at L703
Y
Maybe BCM3556(IC100)
has problems. Replace It.
• Exception
- USB power could be disabled by inrushing current
- In this case, remove the device and try to reboot the TV (AC power off/on)
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
N
Replace Jack
Replace one of
N
IC701/L703/IC806/Q810/L819
& Recheck
LGE Internal Use Only
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