Test your meter:
Set your DVM to DC volts and see if it will measure a battery, like a 9
volt. Any good AA, A , C, or D cell should read around 1.5 volts.
Dave Bradley
Principal Software Engineer
Engineering Animation, Inc.
daveb@... > -----Original Message-----
> From: Brousseau, Paul E (Paul) [mailto:PaulBr@...]
> Sent: Monday, December 20, 1999 4:16 PM
> To: 'motm@onelist.com'
> Subject: [motm] MOTM-900 debugging advice...
>
>
> From: "Brousseau, Paul E (Paul)" <PaulBr@...>
>
> So I finally got a chance to test my MOTM-900 this weekend. And
> of course,
> my DVM reports 0 volts across the COM / -15V or COM / +15V
> terminals on the
> power supply. I'm testing them by putting the DVM leads up
> against the base
> of the terminals, since the rest is covered in shrink wrap. I'm not sure
> what's going on, but here's what I've tried so far:
>
> 1) Changed batteries in DVM.
> 2) Changed power cords and sockets going into MOTM-900, including
> using one
> known to be good.
> 3) Visually checked and rechecked all wirings / configurations against the
> pictures on the last page of the instructions.
> 4) Made sure it was turned on.
>
> At this point, I'm unconvinced that the DVM is working properly. I'm
> thinking I'm going to test it on a wall-wart that I know is good.
> Is there
> any danger in doing this? Does anyone have any other debugging advice? I
> don't think I have any other +15 / -15 devices that I can simply plug in,
> and I want to get this handled before starting on the other modules. (I
> don't even want to imagine the frusteration of debugging a kooky power
> supply AND module at the same time...)
>
> Thanks!
>
> --PBr
>
> >