Specifications

20” LCD TV Color Monitor AOC L20S421
20
2. No Display (LED indicator green)
Check the source
Reset source
Check LVDS cable
NG
Replace LVDS cable
Check 12V power supply
Return to “1”
Check U406
Replace U406
Check panel
Replace panel
Check main board power supply
Check I
2
C communication
Repair I
2
C communication relative circuit
No display
OK
NG
OK
NG
OK
OK
NG
OK
NG
OK
NG