good point!! ROMS do not like overvoltage as much as TTL can
handle...A quick test is too see if any of them run hotter than the
rest - if it is scorching it is most likely toast (or trying to be;-)
John :-#)#
At 5:26 AM -0700 6/1/04, Chris Loggans wrote:
> > On Mon, 31 May 2004 22:52:35 -0500, you wrote:
>>
>> >So, even if a chip's tolerance is listed as +5.25V
>> on it's data sheet, it
>> >can still "survive" at the higher voltage?
>
>Even though the TTL chips may survive, others might
>not. Specifically, I'd check the bipolar proms. I
>recently repaired a Black Widow that was accidentially
>run at 7v (bad A/R II) and the only thing that I found
>that had been affected were the bipolar proms. They
>were all dead. I replaced thouse and everything was
>up and running.
>
>Good luck,
>-Chris
>ons, comments, or problems to chris@westnet.com
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Received on Tue Jun 1 14:16:38 2004
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