Repair Flow Chart - AOC L19W631 Service Manual

19'' LCD TV

5. Repair Flow Chart

1. No Power (No LED indicator)
Check power cord and board interface
Check F901, BD901, C905
Check the start voltage of IC901 pin8
Check D902, C906, ZD905
Check the output wave of IC901 PIN5
Check the feedback circuit& protect circuit
2. Can not start (LED indicator green)
Check the source
OK
Check the 12V Supply
OK
Check IC801
OK
Check Q801， Q802， Q803， Q806,Q805
OK
Check PT801,PT802, Q804,Q807
Check LVDS cable
Check Panel
OK
OK
OK
NG
Check T901
OK
OK
OK
NG
Reset source
NG
Repair the power
NG
NG
OK
NG
OK
NG
NG
Plug in power cord and interface
NG
Replace F901 or BD901 or C905
NG
Replace IC901, R931, R904, R938
Replace T901
NG
Replace D902 or C906 or ZD905
NG
Replace D901 or Q903 or ZD904
Replace IC801
NG
Replace Q801 or Q802 or Q803 or Q806, Q806
Replace PT801,PT802,Q804,Q807
Replug or replace the cable
Replace panel
20
AOC L19W631