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4-1-6. No Sound
Symptom
Video is normal but there is no sound..
-
When the speaker connectors are disconnected or damaged.
-
Major
When the sound processing part of the Main Board is not functioning.
-
checkpoints
Speaker defect.
-
1
Diagnostics
1
2
Caution
Make sure to disconnect the power before working on the IP board.
1
2
Picture is display, no sound.
Yes
Does the signal appear at
R832, R833, R834 (I2S_LRCLK,
_I2S_BCLK, _I2S_DATA) of IC801?
Yes
Check the B 3.3V, B 1.2V of IC801?
Yes
Does the signal appear at
L1465_FL1466_F,L2002 near IC1401?
Yes
Replace the speaker ass'y?
Connect a sound cable.
No
control a volume.
No
Check a connection harness and
headphone jack./Side AV.
Check Sound Processor IC1102(SX1).
Change a DRXK IC IC801.
No
Change a main PCB ass'y.
Change a DRXK IC IC1401.
No
Change a main PCB ass'y.
4. Troubleshooting
4-11
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