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Author Topic: Amiga 500+ No sound only Static  (Read 8611 times)

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Offline spirantho

Re: Amiga 500+ No sound only Static
« on: February 28, 2013, 08:07:35 PM »
I just repaired an A1200 with the same problem.

The capacitors had leaked (as usual) which was half of the problem - the other half of the problem was that the leaking capacitor had dissolved the +12V line going to the op-amp chip. Make sure the op-amp has +12V and -12V supplies.

A short wire fixed it right up for me (along with a couple of new caps, naturally)
--
Ian Gledhill
ian.gledhill@btinternit.com (except it should be internEt of course...!)
Check out my shop! http://www.mutant-caterpillar.co.uk/shop/ - for 8-bit (and soon 16-bit) goodness!
 

Offline spirantho

Re: Amiga 500+ No sound only Static
« Reply #1 on: February 28, 2013, 09:12:00 PM »
You can still resurrect that board - you just need to know which links have been broken and install wires there instead.

Of course knowing which lines are dead is the tricky bit, but that's why God invented schematics and multimeters. :)
--
Ian Gledhill
ian.gledhill@btinternit.com (except it should be internEt of course...!)
Check out my shop! http://www.mutant-caterpillar.co.uk/shop/ - for 8-bit (and soon 16-bit) goodness!