Daewoo DVN-14F6N - Vertical, Horizontal Unit

86
2. VERTICAL, HORIZONTAL UNIT.
A.
Horizontal Line is only
appeared on the screen.
Are 25V and 9V supplied
at pin 7 and pin 1 of I301 ?
check a waveform at pin
5 of I301
check a waveform at pin
11 of I301
Checking connecting
part of DY
Be all right
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Is waveform at pin 2 of I301
normal ?
Check I701 pin 2
Check C312
Check I 301
Resolder
Check power circuit