(Topic ID: 230320)

Data East left speaker not working

By Jakers

5 years ago



Topic Stats

  • 4 posts
  • 2 Pinsiders participating
  • Latest reply 5 years ago by wayout440
  • No one calls this topic a favorite

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#1 5 years ago

I’ve got a Robocop that has no sound coming from the left speaker. I’ve checked all connections including the ribbon cable. My guess is a dead left channel amplifier. I can’t find schematics for the sound board. In this picture, which is the left speaker amplifier? 1,2 or 3?

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#3 5 years ago
Quoted from wayout440:

Looks to be the same as Secret Service. Left would be number 2. Get the full schematics for Secret Sevice from IPDB.com Also while looking at your pic, I noticed you have a bent pin at CN1 speaker output connector at the top. That could be your problem right there.
[quoted image]

Thanks for the info. I should have mentioned in my original post that the picture isn't my actual board. I wasn't near my machine at the time of posting to take a picture. Here is my actual sound board. I guess I'll try ordering a new amplifier chip for the left channel and see if that helps. Is there a way to test an amplifier chip to see if it's bad or not?

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