Re: Tempest

I use a weller desolder station Iron, don't have to much issue on Tempest
boards. Solder wick I wouldn't use. Could solder sucker and time.

I don't personally like the round machine pinned sockets. They are hard to
insert chips into, They are great if you have new chips going. Plus they
are more expensive.

On Wed, Jul 11, 2012 at 4:47 PM, Robert Bayes <robertab@swbell.net> wrote:

> Thanks for the input. I guess socket replacement is the best course of
> action. I'm not sure if the sockets on my board are single- or double wipe
> (you would think I'd remember having had to deal with them so often) but,
> they are clearly not gold. What about the round sockets, are they
> recommended as well or should I avoid them?
>
> Also, what is the most recommended desoldering method? As you know, these
> boards are over thirty years old and, I'm fearful of removing the board
> traces if I use a solder sucker and, I've not had much success with the
> solder wick.
> Thanks again.
>
> ------------------------------
> *From:* Kevin Moore <talon.k@gmail.com>
> *To:* vectorlist@vectorlist.org
> *Sent:* Wed, July 11, 2012 3:57:38 PM
> *Subject:* Re: VECTOR: Tempest
>
> Agreed, if you are having problems that are fixed by re-seating eproms
> every month, then they have most likely lost or are loosing tension. Either
> that or your sockets/ and or eprom legs are corroded or dirty.
>
> I've personally not had any issues with the original gold double wipes,
> but the single wipes they used suck and should always be-replaced.
>
> As for which eproms contain game data, I think it's pretty much spread
> through the majority of them.
>
>
>
> On Wed, Jul 11, 2012 at 3:46 PM, Chuck <chuck@localsurfer.com> wrote:
>
>> I would just replace all the sockets instead of reflowing them. I lot of
>> games had cheap sockets in them that failed over the years. It will drive
>> you crazy chasing things like that again and again. If the interconnect
>> cable is still the IDC connector, I would replace that also. I think Bob
>> Roberts sells a kit for that.
>>
>>
>> On Jul 11, 2012, at 4:19 PM, Robert Bayes wrote:
>>
>> I have a Tempest game that (surprise) has been difficult to keep
>> running. When it fails, I'll pull the boards out, remove all the socketed
>> proms, clean them and the sockets and reseat them and, it'll be good for
>> another month or so. Last time, I was seeking a more permanent solution
>> so I reflowed all the solder connections on the prom sockets and the
>> interboard connectors. It worked for a couple of months but now, it has
>> failed again. I know it's the proms again because the self test works
>> fine. It's just when I switch to game mode that the screen goes blank.
>>
>> Two questions:
>>
>> 1.) I don't have a memory map so could someone suggest to me which proms
>> contain the game software? I don't want to bother those proms that are
>> still working by reseating them again.
>>
>> 2.) Would replacing all the proms help? I mean, besides the external
>> connections do proms actually fail where they become flaky? I've always
>> thought that proms either work or they don't--not that they can only work
>> sometimes.
>>
>> Thanks.
>>
>>
>>
>>
>>
>

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Received on Wed Jul 11 17:51:51 2012