Re: Vcc buss rails being pulled down.

First step, disconnect electrolytic capacitors and tantalum capacitors
conected Vcc. If you have a very good ohmmeter you may be able to trace it
to an area.
On Oct 16, 2011 4:38 PM, <litterbox99@mchsi.com> wrote:

> I'm working on a Slot machine MPU, with
> similar 74xxx components like our arcade
> games.
>
> The Vcc buss is being pulled down to about 50mv.
> The LM340T5 runs very warm, so were keeping the
> power on time very low.
>
>
> Besides removing the IC's one at a time (and
> of course their not socketed ) is there a way
> to ID which component is at fault ?
>
> We've removed the IC's that are socketed, and
> checked for warm or hot components.
>
>
> Todd
>
>
>
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Received on Sun Oct 16 18:04:29 2011