No Output - Samsung MX-F730 Service Manual

4. Troubleshooting

4.1.2. No Output

AUDIO no output
Che ck Me nu →
Music Fu nction a nd Volume
knob ON.
Ye s
Che ck ALQ31,
ALQ41, ARQ31 & ARQ41(IRF6645)
input s igna l on
MAIN P CB.
Ye s
Che ck ALQ31,
ALQ41, ARQ31 & ARQ41(IRF6645)
output s igna l on
MAIN P CB.
Ye s
Che ck L2001/L2002.
Ye s
Che ck L2001/L2002
pa tte rn.
4-4
Choos e
the corre ct function, or
turn on the Volume .
Ye s
Copyright© 1995-2013 SAMSUNG. All rights reserved.
Cha nge the function.
Re pla ce MIC1
on MAIN P CB. (ES 8396)
Re pla ce AIC2
on MAIN P CB. (IRF6645)
Re pla ce L2001/L2002.