Daewoo DTH-14Q1FS Service Manual page 41

§ POWER FAILS TO TURN ON (NO RASTER, NO SOUND DOES NOT TURN ON)
OK
CHECK 5.1V LINE OF
MAIN PCB
NG
CHECK/REPLACE
D809 AND D704
CHECK FUSE F801
ON MAIN PCB
NG
REPLACE THE FUSE
NG
NEW FUSE ALSO OPENS
CHECK AND REPLACE
D802, I801
CHECK/REPLACE
T801 AND I801
OK
CHECK/REPLACE +11V,
+9V AND +180V
OK
CHECK/REPLACE Q801,
Q802 AND I802
OK
CHECK/REPLACE I701
OK
CHECK/REPLACE I501
OK
CHECK/REPLACE HORIZ.
OUTPUT DRIVE CIRCUIT
39
OK
NG(OV)
(140V OR MORE)
CHECK THE VOLTAGE
CHECK/REPLACE I801
CHECK +123V LINE
ON MAIN PCB
NG
AT PIN 9 OF I801
NG
CHECK/REPLACE
D827 AND Q827
NG