Samsung LE23R32B Service Manual page 45

4 Troubleshooting
4-7 No Sound
Picture is displayed, no sound.
Yes
Does the signal appear at
Pin 12, 1(CH1_L, R Sound)
7
and Pin 15, 2
(CH2_L, R Sound)
of IC613?
Yes
Does the DC 8V
8
appear at C653?
Yes
Does the signal appear at
9
L624_OP, L625_OP?
Yes
Replace the speaker ass'y?
4-12
No
Check sound cable and
volume control.
No
Check connection harness and
headphone jack.
No
Check IC813.
Change main PCB ass'y.
No
Check IC611.
Change main PCB ass'y.