AOC LE19K097 - 5 Repair Flow Chart

20
5. Repair Flow Chart
No Picture (LED Orange)
Change key board/IR board
Check U401
Change U401
Check key board/IR board
No picture
OK
NG
OK
NG
Check 43V power supply
OK
Check the power supply circuit
NG
Check main board standby power supply Change U751
OK
NG
Check I
2
C bus
Check I
2
C communication
NG
OK