Samsung 730MP - 5-8 No Sound(VIDEO,S-VIDEO,SCART)

5 Troubleshooting
5-8 730MP
Does a signal appear at R726,
R727(VIDEO/S-VIDEO) or
R722, R723(SCART)?
Check related CN707, CN705
or AV DEVICE.
Yes
No
Does a signal appear at
R759, R760?
Check related circuit
IC700(TEA6422).
Yes
No
Does a signal appear at
L500, L501, L503, L504?
(SL/SROUT)
Check related circuit
IC501.(TPA3002)
Yes
No
Check the Speaker L/R.
5-8 No Sound(VIDEO,S-VIDEO,SCART)
Yes
Does a signal appear at
R511, R516?
Check related circuit
IC701.(VCTI)
No
11
12
11
12
WAVEFORMS