(Topic ID: 242823)

System 11A music/sound problem

By Gnatty

4 years ago


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#13 4 years ago

you can also swap the sound board ribbon cable around end to end and see if it persists.

Seen a bad ribbon cable cause this exact issue . Do as Kbliznick says and reseat socketed chips like the eproms etc. Plus reseating the cable many times may help as it cleans the terminals off the more you do it.
Never hurts to get a new ribbon cable though. Cheap way to make sure its not the problem. You should inspect the pins on the boards too. Seen the odd pin missing before and some not making connection due to poor factory solders.

#17 4 years ago
Quoted from wayout440:

Better to get a new ribbon cable. Reseating the cable also wears and stretches out the female sockets of the connector, which can make a poor connection just worse. These are not meant to be plugged and unplugged repeatedly. http://www.pinrepair.com/connect/#worn

yes thats why I said to get a new cable if reseating helps. Its always best to replace it. they are cheap.

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