Hi everyone,

So, this has been happening for a while. It's been random enough so I forget to do it but it's now irritating and I want it fixed.

My "Doctor Who" machine is having sound issues. When powered on, during the test sequence, incorrect sounds are being triggered. I have a short video on YouTube of the problem here:

The sound board looks fine. There aren't any obvious problems of blown components so I'm wondering if it might be a chip?

I have the sound board's schematics but I'm not that good when it comes to diagnosing problems that go beyond passive components.

Any ideas?

Thanks.

-Bob

Update:

I re-seated the sound chip (U18), fired it up, and the error had resolved itself.

I'm glad I have one of chip-removing tools because that sucker was jammed in there and took a lot of subtle coaching to remove it.

So, yeah, the chip just needed a little jiggle and a very light once-over with denatured alcohol on the legs.

Problem solved.