Re: Fluke 9010A and Space Invaders

My guess is that the voltage levels are slightly lower on the L-shaped
boardsets. The voltage threshold that triggers the the UUT Power fail
is probably too high such that even the subtle lower voltage between
one boardset and another causes the fail to trigger. (Even though the
voltage is high enough to run the board logic) I typically disable
this check as well, or tweak my adjustable power supply up a few
hundred millivolts.
-Adam

On 4/13/05, Phillip Eaton <inbox@phillipeaton.com> wrote:
> I've had similar problems on PCBs that run fine with a CPU. I think it may
> have happened on my L-shaped SI.
>
> As Martin said, I just disabled the UUT test and it worked fine.
>
> Phil
>
> -----Original Message-----
> From: techtoolslist-bounces@flippers.com
> [mailto:techtoolslist-bounces@flippers.com]On Behalf Of Phil Morris
> Sent: 13 April 2005 21:30
> To: techtoolslist@lists7.flippers.com
> Subject: [Techtoolslist] Fluke 9010A and Space Invaders
>
> I have a Fluke 9010A with an 8080 pod - said combination works fine with
> every '3-layer' Taito Space Invaders boardset that I've used it with, but
> if I try it on *good, working* 'L-shaped' Taito boards I get the error:
>
> UUT Power Fail
>
> This has me puzzled - why should the Fluke work fine with one type of
> boardset, yet not the L-shaped set, even though said L-shaped sets work
> perfectly with an 8080 in the CPU socket?
>
> Thanks,
> Phil
>
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Received on Thu Apr 14 11:03:46 2005