Samsung UE32D55-R Series Service Manual page 94

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No Sound
„
Symptom
Major
checkpoints
Diagnostics
Caution
Video is normal but there is no sound..
-
When the speaker connectors are disconnected or damaged.
-
When the sound processing part of the Main Board is not functioning.
-
Speaker defect.
-
Check the source and
check the connection of sound cable
(Comp/PC/DVI to HDMI) ?
Yes
Does the sound data appear at
PIN - COMP1_SR_IN,
COMP1_SL_IN
VIA - PC_DVI_SR_IN,
PC_DVI_SL_IN (PC/DVI) ?
Yes
Does the DC B12VS appear at
CN201 PIN 7,9 - B12VS_PW ?
Yes
Does the sound data appear at
7
TP - SPK_ L-, SPK_L+, SPK_R-, SPK_R+ ?
Yes
Replace speaker ?
Make sure to disconnect the power before working on the IP board.
Digitized in Heiloo Netherland
No
Input the sound source properly.
Check CN503, CN402.
No
Change the Main Assy.
No
Change the Main Assy.
Check IC1111 (X5).
No
Check IC301 (Sound AMP).
No Please, Contact Tech support.
4/30/2017
4. Troubleshooting
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