AOC 196V Service Manual page 34

4. U4-DATA OUTPUT
Measured X401 waveform
normal?
OK
Check MST8011 (U401)
Signal output (PIN102-103, 106-113,118-125,128,1)
Is the waveform ok?
NG
Check HS/VS input signal are normal?
Replace U401
NG
NG
OK
Page 34 of 54
AOC 176V
Replace X401(14.318MHz)
OK
Check relative circuit to panel
Check relative component