Daewoo DV- K504N-SJ, Technical Manual

Page: 90 / 123

89
TROUBLESHOOTING GUIDES (Continued)
B.
Is pin
f
of IC301 0V?
Is the output at pin
H
of IC301?
Check R221, R222, R203,
C221.
Is 5V applied to pin
y
,
]
,
J
of IC301?
Is 5V applied to pin
F
of
IC301?
Is 0V collector of Q201?
Check Pin
%
,
$
of P201
NO NO
Check power circuit
NO
Check IC601
NO
Check Q201, Q202, Q204
YES YES
YES
YES
YES
No sound in the playback mode.