PC Engine Duo R - No Audio

[TelcoSurveyor]

So I bought a not working Duo R off eBay listed with no sound and no video from the cd drive. I was able to get the cd working beautifully with minor pot adjustments. I ordered a cap kit from Console5 and was looking over the cap diagram and noticed it didn't look like the duo r diagram I had printed out, so I googled the motherboard number and it's a duo rx motherboard inside a duo r shell. Looks like I have a couple less audio circuit caps to replace. Hope it works since I've not heard of the caps needing replaced very often on the duo r's.

[Keith Courage]

Most likely some thing else is at fault. It extremely rare for R or RX systems to have audio issues do to bad caps. Good luck with trying to caps first though.

[TelcoSurveyor]

First thing I did was check the connector for loose solder and discovered there had been an rgb mod done to this, so I swapped the 8 pin for a 5 pin. Still no sound, so my next thought was caps. The board looks in decent shape, but I'm new to looking at it from a troubleshooting standpoint.

[Keith Courage]

Might be a broken trace somewhere or a bad 4558 op amp. rarely ever caps.

[TelcoSurveyor]

I am noticing five of the 4558 op amps that are mounted 2x on the top and 3x on the bottom in the area where the laser is, am I missing any, and should I replace all of them?

[TelcoSurveyor]

Well, I burnt a pad trying to swap C325 and now I think I should send it out to someone who can possibly fix it over me screwing it up further.. Any takers?