AOC 931SW series Service Manual page 31

Service Manual
No Backlight of panel
Check voltage of J810-14V？
OK
Check ON/OFFsignal
OK
Check IC801 -11pin=5V
pinRT waveform?
OK
Check IC801-3pin CT waveform?
OK
Check IC801-out6/8/9/10pin?
OK
Check Q802
OK
Check T801 out voltage?
OK
Check feedback circuit
NG
NG
Check main board
NG
NG
?
waveform
NG
Check flow chart for the
Inverter No Backlight
Open J810, voltage-14V
OK
After Power off,check
C816/C804/Q805/Q80
6
After Power off,check
ZD802/ZD803/R804
Check aroud component
Replace IC801
NG
Check around component
NG
Replace device
Check /Replace
C817-C819-C820-C8
21-C822
31
NG
Return check Power
AOC 931SW+