LG FLATRON 27UD68WG - Product Troubleshooting Guide; Troubleshooting No Power Issues

TROUBLESHOOTING GUIDE
-34 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. NO POWER
`
No power issue
Check JK400
PIN 4
Is IC401
PIN2(19V),PIN
3(5V)
CHECK ADAPTER
CHECK IC401
Is IC 400
PIN2(3.3V)
CHECK IC400
Is IC200
PIN95,PIN96
PULSE
CHECK CRYSTAL X200
YES
YES
YES
NO
NO
NO
NO
CHECK IC200
IC401-#2 IC401-#3 IC400
X200