Samsung LE32C63 Series Service Manual page 71

4-1-8. No Sound (1.Speaker 2.Monitor_out, 3.Optical)
Symptom Video is normal but there is no sound..
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When the speaker connectors are disconnected or damaged.
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Major
When the sound processing part of the Main Board is not functioning.
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checkpoints
Speaker defect.
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0
Diagnostics
!
Caution Make sure to disconnect the power before working on the IP board.
Check the source and check the connection
of sound cable (Comp/PC/DVI to HDMI) ?
Yes
Check the signal at input of Main board ?
SIED AV R : C331 / L : C332
AV1, COMP1 R : C339 / L : C340
PC, DVI R : C333 / L : C334
SC1 R : C335 / L : C336
SC2 R : C337 / L : C338
Yes
Check the Power of Audio codec IC ?
BD302 : B3.3V
BD301 : B9V
Yes
Check the I2C DATA between the Audio IC's ?
Pin #6 of IC302 : VAL_MCLK
Pin #7 of IC302 : VAL_LRCLK
Pin #10 of IC302 : PCM_I2C_DATA
Yes
1. Check the Speaker sound data at ?
BD304, BD303 (R +/-)
BD306, BD305 (L +/-)
2. Check the Monitor out sound data at ?
L507 ( R )
L506 ( L )
3. Does the SODIF OUT sound data appear at ?
TP302 (SPDIF_OUT)
Yes
Replace speaker ?
No
Input the sound source properly.
Check CN402, CN501, CN502.
No
Change the Main Assy.
No Change the Main Assy.
No
Check IC1101, IC302.
Change the Main Assy.
No
Check IC1101, IC301, IC302 .
Change the Main Assy.
No
Please, Contact Tech support.
4. Troubleshooting
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