Daewoo DV-F24S, Service Manual

Page: 38 / 110

36
4-6. VIDEO CIRCUIT
Is the signal obtained from pin
‘
of ICL01 (A/V circuit)?
A. Troubleshooting of EE mode.
NO
Check A/V circuit
YES
Is the video signal from pin
‘
fed to pin
2
of IC301?
NO
Check C316
YES
Is ON/OFF 5V supplied to pin
3
and pin
t
of IC301 at 5 volts?
NO
Check ON/OFF 5V
YES
Is EE(L) supplied to anode of
D302 at zero volt?
NO
Check EE(L)
YES
Is the signal from pin
2
of
IC301 fed to pin
6
of IC301?
NO
Check TRICK(H)
and IC301
YES
Is the video signal obtained
from pin
)
of ICS01 (OSD)
NO
Check Q309 and R323
YES
To OSD circuit