Re: Tempest boards playing blind (and worse)...help!

Curtis H. Wilbar Jr. wrote:

>Oh, one more tempest thing... I have a spare set of tempest boards that
>work great... just one problem... no red gun... turns out the pin on the
>edge connector for the red gun is gone ! peeled right up and off.....
>
>Now I don't want to relocate the signal to an unused pin... as that makes
>it wiring specific....
>
>So...
>
>Anyone ever restore a missing "pin" ? I was thinking of using one from
>a scrap board... using a razor blade to peel up a "replacement" one, and
>epoxying it to the location of the missing "pin" on the tempest board.
>
>Comments, ideas, etc welcome.
>
>-- Curt
>
>

At my Real Job pads (or in your case, an edge connector) are reattached
using Hysol.

There are also peel and stick pads, lines, and connector pads available.

>
>
>>Content-Disposition: inline
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>>From: "Travis Shire" <boardjunkie@techie.com>
>>To: vectorlist@synthcom.com
>>Date: Tue, 07 Jan 2003 08:55:30 +0800
>>Subject: Re: VECTOR: Tempest boards playing blind (and worse)...help!
>>X-Originating-Ip: 24.236.175.66
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>>
>>VoSsy VoS!!!
>>
>>With the one drawing crazy lines I'd start with the dac's, one or the other (or
>>
>>
>both for that matter) is probably bad. The one with no video kicking the spot
>killer should be a bad op amp in the output section. Check with a meter on each
>axis' test loop to see if its stuck (they should normally fluctuate as the pix
>is drawn).
>
>
>>Follow the schem to see where you get a good input to an op amp stage and a
>>
>>
>stuck output.
>
>
>>Shouldn't be much of a problem to get them both back in action again.
>>
>>Laterz
>>Travis
>>
>>
>>
>>
>>Hey guys, I was unconverting my MH last night to sell as a Tempest...got one of
>>
>>
>my dead Tempest boards going and popped it in. Machine is working great.
>Figured while I was at it, I should try to get some others going. I've got two
>sets that play fine blind, but no video (spot killer on)...have another that
>plays blind, but draws a few crazy random vectors, with the spot killer going on
>and off rapidly. Monitor sounds like hell during this, so I only ran it a few
>seconds.
>
>
>>Any suggestions on where to start? This is the first time I've delved into
>>
>>
>anything more than bad solder joints at the interconnect, as far as Tempest
>boards go.
>
>
>>Thanks,
>>Richard
>>--
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>
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Received on Mon Jan 6 23:18:06 2003