Re: Best way to test a POKEY?

Hi Doug! There are three possible causes for random POKEY failure - a bad POKEY, a good POKEY with dirty pins and a flaky socket. The list has discussed various ways to clean the pins (dremel with a wire brush, eraser and contact burnisher). Look at the list archives for details.

If the Gravitar pcb that sometimes fails the POKEYs consistently fails them with a NOS/known good POKEY, then I'd replace the 40 pin socket and see if that clears it up. Atari sockets cause lots of issues. Good luck!

________________________________
 From: gauck.com <douglas@gauck.com>
To: vectorlist@vectorlist.org
Sent: Saturday, January 14, 2012 9:40 AM
Subject: VECTOR: Best way to test a POKEY?
 
Hi all,

Just repaired two Gravitar boards and one of them sometimes tells me its POKEYs are bad... but only sometimes. Is there a preferred way to do a more thorough test of these chips? Do any other games (i.e. Star Wars or Missile Command) do a more thorough test?

-Douglas---------------------------------------------------------------------------
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Received on Sat Jan 14 18:27:38 2012