AOC 2036Sa Service Manual page 38

(2). No Picture
No picture
Check U404 Vout=3.3V
Q410 Vc=1.8V
NG
OK
Check CN404, U404, Q410
X401 oscillate waveforms are normal
OK
NG
Replace X401
Check if the Hsync signal from CN101 is normally
NG Input the sync signal of computer,
OK
or change the cable
Replace U401
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