Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2-11
6. AMP Protection
YES
NO
OK.
"PROTECTION"
appears continuously on the FLD.
YES
NO
Replace IC101.
Is the IC101 pin54
"LOW" signal(0V)?
YES
NO
Replace the Q701 and Q702.
Is the Q701 and Q702 normal?
YES
YES
After unplug power cord, connect again.
YES
Power on.
"PROTECTION" appears on the FLD.
Replace ST AMP IC(IC702 and IC703)
To Next Page
Loading...
