4-1-8. 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
Change the IC301 or the main PCB assy.
No
Yes
No sound
Yes
Check the sound source and
check the connection of
sound cable?
No
Input a sound signal.
Check the connected cable.
Yes
Replace the speaker.
Please, contact Tech support.
No
Does the digital data appear at
R318, R319, R320, R321 ?
No
Change the IC1101 or
the main PCB assembly.
Does the signal appear at
BD309, BD312?
Yes
Caution Make sure to disconnect the power before working on the PD board.
Notice Refer to the next page for detailed locations.
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