Panasonic DMR EH50 - Total loss of sound

I have a Panasonic DMR EH50 which has no sound being output whatsoever - whether from feeding through a tv signal or simply playing a DVD. I'm pretty certain it's not simply a connection issue, or even a particular issue with a specific output connection as I've tried connecting via scart and also by Audio Video and RF options. Does anyone know if there is anything on the circuit board/connections internally that might be causing this? I've looked at basic things like the capacitors and all look fine. Thanks.


Sound problems are usually caused by failure of IC3001.

It is a 100 pin chip.
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