Picture Is Display, No Sound. - Samsung LA26R71B Service Manual

4-2-7 No Sound

Picture is display, no sound.

Yes
Does the signal appear at
Pin #10, #16(CH1_L, R Sound)
6
and Pin #3, #9
(CH2_L, R Sound)
of IC603?
Yes
Check the DC 12V
of IC603?
Yes
Does the signal appear at
7
L609_OP, L611_OP,
L612_OP, L614_OP?
Yes
Replace the speaker ass'y?
No
Connect a sound cable.
control a volume.
No
Check a connection harness and
headphone jack / Side AV.
No
Check a IC603.
Change a main PCB ass'y.
No
Change a main PCB ass'y.
4 Troubleshooting
4-13