Super Sprint Lock up

mikenicee

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Jun 12, 2011
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I have a SUper Sprint machine.

The machine used to work, then all of sudden it didnt boot up.
Then I cleaned the connectors, and got it to boot up
But it locks up

see this video
http://www.youtube.com/watch?v=y8gNzVRUVEk

I read one of the other posts that said to put into test mode. Theres a switch on the audio board.

So I did that and got a RAM ERROR: 3T

So I saw the which chip that was, I took it out again, and used electronic circuit cleaner, put it back in, same thing. Then I took them all out, and clean them all, same thing, but then I messed up and damaged a pin on one of the chips.

So I purchased 12 new NEC chips (i forgot the #, but it was the same type, something like D446C)

I plugged them in, no luck, now it goes to blank screen.

So now I have 12 new RAM chips, 11 old ram chips that are fine and 1 chip w/a bad pin.

What do I do?

thanks
mike
 
Where do I get the yamaha audio chips for a super sprint machine?

During the self check, I get audio error for the yamaha chips.
Where do I get these?

thanks
 
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