Re: Gauntlet pcb woes

this is a good general starting process.

1. Verify DC voltages, the +12/15V controls the reset line usually on
Atari boards
2. Verify no AC ripple on the power supply (usually not an issue with
switching power supplies but sometimes)
3. Check for CPU clock signal (pulsing)
4. Check that Reset pin is high. If low, then check reset logic.
5. Pull all ROMs that are not required for self test to run (generally
noted in manual)
6. Start replacing all socketed chips on at a time
7. Replace all excessively hot IC's
8. Get out the schems!! :-)

Christopher Bedwell wrote:

>I got my hot hands on a gauntlet pcb - its not firing
>up at all, no sound - no picture..
>
>Suggestions for where I should start ?
>
>Some socketed rams ( I assume ) are getting hot, the
>processor is warm.. theres power getting in, the led's
>are firing up..
>
>- Chris.
>
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>
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Received on Fri Oct 17 02:14:08 2003