Samsung LA19C350D1, Руководство по обслуживанию

Страница: 60 / 79

4-11
4. Troubleshooting
4-1-6. No Sound
Symptom Video is normal but there is no sound.
-
Major
checkpoints
When the speaker connectors are disconnected or damaged.
-
When the sound processing part of the Main Board is not functioning.
-
Speaker defect.
-
Diagnostics
19"/22"_C350 26"/32"_C350
No
Check JA5004/JA5005/JA5001/JA4001.
Change the Main Assy.
BN94-02709A
No
No
Check the source and check the
connection of sound cable
(Comp/PC/DVI to HDMI)?
Replace speaker?
Change the Main Assy.
BN94-02709A
Check IC6003 (SEMS03).
Check IC2001 (Sound AMP).
Change the Main Assy.
BN94-02709A
No
No
Does the sound data appear at
R5032, R5031(AV2 R/L), R5036,
R5037(AV1 R/L), R5017, R5018
(Comp1 R/L), R5009, R5010 ?
Does the DC B3.3VD, B13VS
appear at R2013, BD1006?
Does the sound data appear at
C2056, C2054 (R +/-)
C2053, C2055 (L +/-)?
Yes
Input the sound source properly.
Please, Contact Tech support.
Yes
Yes
Yes
Caution Make sure to disconnect the power before working on the IP board.