John Bennett
Senior Member
Re: [ukvac] Tech: 1942 troubles
Also make sure that if the 2 boards are screwed together with PCB
posts they are plastic, or have plastic washers. I had great fun
(not) with mine when i was shorting between the 2 boards.
On 4 Oct 2000, at 15:31, Martin White wrote:
> I'll check those connections tonight, but as it was playing fine one minute,
> duff the next, unfortunately me thinks it could well be a logic probe
> jobbie....
>
> Guddler.
>
> >With modern (relatively) boards like 1942 you can put quite a lot
> >more voltage than the chips specify and still be ok, so dont worry
> >about that - not enough voltage is a bigger problem, but youve
> >tested for that and you're ok. 1942 will run fine with only 5v
> >supplied, so its not a power problem. Looks like the board has
> >gone belly up - check the conections between the 2 boards - try
> >some different cables if you have them - make sure they are in
> >tightly. Other than that - its a matter of fault finding with a logic
> >probe.
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Gavin Yuill
Dept Of Mining and Mineral Engineering
Houldsworth School
University of Leeds
Leeds
LS2 9JT
Email: mingjy@leeds.ac.uk
Tel : 0113 233 2808
DATA Imported from archives: originally posted by G.J. YUILL (mingjy@ecu-01.novell.leeds.ac.uk)
Also make sure that if the 2 boards are screwed together with PCB
posts they are plastic, or have plastic washers. I had great fun
(not) with mine when i was shorting between the 2 boards.
On 4 Oct 2000, at 15:31, Martin White wrote:
> I'll check those connections tonight, but as it was playing fine one minute,
> duff the next, unfortunately me thinks it could well be a logic probe
> jobbie....
>
> Guddler.
>
> >With modern (relatively) boards like 1942 you can put quite a lot
> >more voltage than the chips specify and still be ok, so dont worry
> >about that - not enough voltage is a bigger problem, but youve
> >tested for that and you're ok. 1942 will run fine with only 5v
> >supplied, so its not a power problem. Looks like the board has
> >gone belly up - check the conections between the 2 boards - try
> >some different cables if you have them - make sure they are in
> >tightly. Other than that - its a matter of fault finding with a logic
> >probe.
> _________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
>
> Share information about yourself, create your own public profile at
> http://profiles.msn.com.
>
>
>
>
Gavin Yuill
Dept Of Mining and Mineral Engineering
Houldsworth School
University of Leeds
Leeds
LS2 9JT
Email: mingjy@leeds.ac.uk
Tel : 0113 233 2808
DATA Imported from archives: originally posted by G.J. YUILL (mingjy@ecu-01.novell.leeds.ac.uk)