Re: William PS Failure Question

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Let's hope his power supply did not fail HIGH. Sometimes Williams supplies
can fail where the logic board gets about 10VDC. This is not very good...

Has he connected all the voltages to the switcher correctly? There are two
+12VDC connections, a -5 and +5 all are required for the board to work.

Why not introduce your friend to the list so questions can go directly...

John :-#)#

At 05:25 PM 11/7/00, Chris Loggans wrote:
>I just got an email from someone asking what can happen to a board when the
>power supply goes out in a Williams Defender game. He says that the +5 was
>dead, and he has since replaced the original with a switcher, but now he
>doesn't get anying from the game boards. (blank screen and no LED activity
>on the ROM board) I don't know if the failure occurred while the boards
>were attached or not, but it sounds like they might have taken a pretty big
>hit. Anybody have experience with these types of failures? What if the
>board wasn't attached during the failure, but run with whatever voltage was
>present afterwards. Any thoughts?
>
>Thanks,
>-Chris
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Received on Tue Nov 07 11:08:36 2000