Daewoo DV6T712D Service Manual page 24

E. No NORMAL AUDIO playback (PLAY MODE)
No Normal Audio in
playback mode
Is there siganl at IC252
pin#3,13?
NO
Signal at IC251 pin#21 is
transferred to IC301 pin#13,15,17?
YES
Is there playback Audio
signal at IC301 pin#11?
YES
Is about 3.5V obtained at IC252
pin#9, 10?
YES
Replace IC252.
23
TROUBLESHOOTING
NO
Check POWER circuit.
NO
Check A/C HEAD.
Check IC301.
NO
Check
R646,R647,R911,R913