Daewoo DTH-14Q1FS Service Manual page 35

§ OUT OF VERTICAL SIZE
CHECK Q502
CHECK/REPLACE I301
§ NO VERTICAL SCAN (ONE HORIZ. LINE RASTER)
MEASURE THE VOLTAGE
OF PIN 8, 13 OF I301
CHECK THE WAVEFORM
OF PIN 12, OF I301
CHECK THE CONNECTING
OF P401
CHECK/REPLACE D.Y
CHECK THE VOLTAGE OF PIN 21 OF I501
N.B. : NTSC / PAL-M:H/PAL-N:L
OK
NG
OK
CHECK WAVEFORM OF PIN20 OF I501
OK
NG
OK
NG
OK
OK
REPLACE Q502
DISCONNECT D302 AND
MEASURE THE VOLTAGE
NG
OK
REPLACE I301
33
NG
CHECK THE NTSC/PAL SW
OK
REPLACE I501
NG
CHECK/REPLACE I501
CHECK/REPLACE R318
OK
CHECK/REPLACE T402