Daewoo DV- K504N-SJ, Technical Manual

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88
TROUBLESHOOTING GUIDES (Continued)
A.
NO
NO
NO
Check Power circuit
Check INPUT JACK
Is 0V of Pin
d
,
F
,
f
Check SYSCON circuit
Is there output at pin
H
of IC301?
Change IC301
Check OUTPUT JACK
Is 5V applied to pin
y
,
]
,
J
?
of IC301?
Is signal input pin
G
of IC301
in Line mode?
YES
YES
YES
YES
NO
No sound in the E-E mode
AUDIO CIRCUIT 2-Head 4-Head model