Re: Tempest Eats EPROMs

From: John Robertson <jrr_at_flippers.com>
Date: Sun Oct 08 2000 - 22:28:20 EDT

Um, your power supply might be "spiking" the board. I would REALLY suggest
that you replace it with a nice computer grade switching supply, at least
for the +5 section!

John :-#)#

At 06:57 PM 10/8/00, chumblespuzz wrote:
>My vectors are hungry!
>
>I'm working on a Tempest board. Self test indicated a bad EPROM. Changed it.
>Self test indicated another. Changed it. It worked. Played it. Powered down.
>Powered up later, another bad EPROM. Changed it. All worked ok. Put the
>board away.
>
>A week or two later (now), put the board in a machine - bad EPROM. Changed
>it. All works ok.
>
>WHY? Why are the EPROMs dying? All are original Atari labelled EPROMs. Do
>they "just go bad"? Should I expect the others to go? Should I replace them
>all on general principals? What would you do?
>
>Thanks,
>-roy-
>
>---------------------------------------------------------------------------
>** To UNSUBSCRIBE from vectorlist, send a message with "UNSUBSCRIBE" in the
>** message body to vectorlist-request@synthcom.com. Please direct other
>** questions, comments, or problems to neil@synthcom.com.

  John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
  Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
  http://www.flippers.com
         "Old pinballers never die, they just flip out."

---------------------------------------------------------------------------
** To UNSUBSCRIBE from vectorlist, send a message with "UNSUBSCRIBE" in the
** message body to vectorlist-request@synthcom.com. Please direct other
** questions, comments, or problems to neil@synthcom.com.
Received on Sun Oct 8 22:36:06 2000

This archive was generated by hypermail 2.1.8 : Fri Aug 01 2003 - 00:32:51 EDT