Video Unit - Daewoo DVN-14F6N Service Manual

4. VIDEO UNIT

A.
EE MODE Picture NG
Is video signal input into pin 42
(Video jack) and 45 of I501
Is 5V supplied at pin 10
and 9V supplied at pin 12 of I501
Is signal output from pin
43 of I501
Is signal input into pin 4 of I503
Is signal input into pin 38 of I501
Check P504 and CRT PCB
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Check PIF circuit and
LINE IN JACK
Check ON/OFF
9V circuit.
Check I501
Check Y/C PCB
Check pin 5 of I503
EE MODE : L, PLAY : High
Yes
Change I501
93
No
Check Q706
and I503