Product specifications

4-11
4. Troubleshooting
4-1-6. No Sound (SX1)
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
No
Check a connection harness and
headphone jack./Side AV.
Check Sound Processor IC1102(SX1).
No
Picture is display, no sound.
Change a DRXK IC IC801.
Change a main PCB ass’y.
No
Does the signal appear at
R832, R833, R834 (I2S_LRCLK,
_I2S_BCLK, _I2S_DATA) of IC801?
Check the B 3.3V, B 1.2V of IC801?
Change a DRXK IC IC1401.
Change a main PCB ass’y.
No
Does the signal appear at
L1465_F, L1466_F near IC1401?
Replace the speaker ass’y?
Yes
Connect a sound cable.
control a volume.
Yes
Yes
Yes
Caution Make sure to disconnect the power before working on the IP board.