Trouble Shooting - LG Flatron 27UD68P Service Manual

IC401-#2
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TROUBLESHOOTING GUIDE
1. NO POWER
No power issue
Check JK400
PIN 4
YES
Is IC401
PIN2(19V),PIN
3(5V)
YES
Is IC 400
PIN2(3.3V)
YES
Is IC200
PIN95,PIN96
PULSE
CHECK IC200
IC401-#3
NO
CHECK ADAPTER
NO
CHECK IC401
NO
CHECK IC400
NO
CHECK CRYSTAL X200
X200
IC400
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