Samsung 730MP - 5-9 No Sound(PC)

5 Troubleshooting
730MP 5-9
Does a signal appear at R143,
R144(PC-AL/AR)?
Check CN100 and
PC sound input cable.
Yes
No
Does a signal appear at
R511, R516?
Check related circuit
IC701.(VCTI)
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.
5-9 No Sound(PC)
Does a signal appear at
R759, R760?
Yes
Check related circuit
IC700(TEA6422).
No
11
12
11
12
WAVEFORMS