Trouble Shooting Chart; Panel Control Circuit Trouble Shooting - AOC TV1764W-2E Series Service Manual

5-1. Panel Control Circuit:
Check CN101 pin 42-45
is 5V and signal on pin
35,37,39,40,25-28,30-
33,15-18,20-23,5-8,10-13

5.TROUBLE SHOOTING CHART

No Display
NG
Check U300 Output to
CN101 relative circuit
and CN101 VCC at
Q300, Q301, L309 (5V)
NG
Check U300 crystal
X300 (12MHZ)
NG
Check 2.5V L301-L304
3.3V L305-L308
NG
Replace U300
OK
Replace panel or FPC
OK
Replace L118, C317
OK
OK
16
TV1764W-2E
cable to panel
Replace X300
Replace components
if it has problem