Video Circuit - Daewoo DQD-6100D Service Manual

TROUBLESHOOTING

4. VIDEO circuit

Caution
Before the VIDEO circuit test, check SETUP MENU setting first by remote controller.
No VIDEO output from JK301 yellow
pin
TV setting on SETUP MENU is PAL
mode?
YES
Is there Video signal from P205 pin #20?
YES
Is there Video signal from
Q100,Q101 emitter ?
YES
Check D100,101,102,103
No Component Video output from
JK101
TV setting on SETUP MENU is PAL mode?
YES
VIDEO output of SETUP MENU is
set on Component?
YES
Is there Video signal from P205 pin
#17,18,19?
YES
Is there Video signal from
Q104,Q105,Q106 emitter ?
YES
Check D116,117,118,119,120,121
NO
Change setting to PAL mode
Check FFC CABLE connected to P205
NO
and MPEG Decoder IC pin #100-#106
NO
Check Q100, Q101
NO
Change setting to PAL mode
NO
Change setting to Component
Check FFC CABLE connected to P205
NO
and MPEG Decoder IC pin #100-#106
NO
Check Q104,Q105,Q106
30