(Topic ID: 234074)

Xenon sound board.... is it repairable?


By timab2000

4 months ago



Topic Stats

  • 52 posts
  • 6 Pinsiders participating
  • Latest reply 9 days ago by Zablon
  • Topic is favorited by 2 Pinsiders

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#51 21 days ago

Also make sure jumper J is in and U3 is a 6808 chip. If its a 6802, a jumper needs to be changed.

1 week later
#52 9 days ago

Finally got this fixed. U6 was bad and so was the R1 on the vocalizer.

Ultimately what was replaced was:

Soundplus - U4 (bad), U10 (bad), U3 (don't think this was bad)

All the big chip sockets.

Both pentiometers were bad

U6 on Sound plus

R1 on Vocalizer
The 3 diodes on the vocalizer that were cracked.

The various caps that are normally replaced.

Took awhile yes, but I really only worked on it probably 8 or so hours total. Most of it was waiting on time to actually dig into it and waiting on parts.

I started out really not understanding how the 2 boards communicated and I am pretty sure I was looking at it backwards in terms of flow. It was a good learning experience as I researched many chip diagrams and learned more about gates and such that I didn't know before.

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