Samsung DVD-907 Service Manual page 97

Troubleshooting
DVD center output error
Normal DATA2 is input in AIC3?
Analog output(pin14) of AIC3 is
AIC12(pin1,7) output is normal?
AIC13(pin1) output is normal?
Base ferminal level of AQ21,22 are ÒLÓ?
Check AL15 peripheral soldering and short
8-14
5.1 channel is contained
in playing disc?
Yes
Yes
normal?
Yes
Yes
Yes
Yes
No
Outputted only in 2
channel(stereo channel)
No
Check BIC1(pin128) ouput
No
Check AIC3(pin2) 18.432MHz
No
Check AIC12 peripheral circuit
No
Check AIC13 peripheral circuit
No
Check DCN1(pin26)
peripheral circuit
Samsung Electronics