[vcf-midatlantic] ADM-3A repaired

corey cohen coreyvcf at gmail.com
Sat Dec 23 18:23:13 EST 2017



corey cohen
uǝɥoɔ ʎǝɹoɔ

> 
>> On Sat, Dec 23, 2017 at 5:36 PM corey cohen via vcf-midatlantic <vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:
>> 
>> 
>> > On Dec 22, 2017, at 2:55 PM, corey cohen <coreyvcf at gmail.com> wrote:
>> >
>> >
>> >
>> >> On Dec 22, 2017, at 2:41 PM, Paul Rickards via vcf-midatlantic <vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:
>> >>
>> >> Hi Folks,
>> >>
>> >> I picked up a LSI ADM-3A from the lot that Jonathan brought to Festivus
>> >> this year. I posted the repair progress as a thread on Twitter for all to
>> >> see.
>> >>
>> >> https://twitter.com/paulrickards/status/941494883247968257
>> >>
>> >> Hope it helps someone else in their repairs.
>> >>
>> >> Cheers,
>> >> Paul
>> >
>> > I got the blue ADM that was a kit and socketed.  so far 10 bad sockets.  There was some sticky goo inside and under the sockets which I tried cleaning out but gave up and found the exact replacements on eBay.   14 pin arrived yesterday and 16 pin are scheduled for tomorrow.   Hopefully that’s all my problems.
>> >
>> > Oh and I also recapped everything.
>> >
>> > I also sealed the edges of the CRT which was already de-cataract’d with aquarium silicone.  The double sided tape wasn’t holding the glass to the tube well.
>> >
>> > Then next step is getting touch up paint made.  The batch I had made last week was too light.  I can adjust it myself or go have it remade.
>> >
>> > Juggling this project and my Lisa 2/10 restoration.
>> >
>> > Cheers,
>> > Corey
>> Well an update on my socketed ADM-3A repair.
>> 
>> Replaced the 10 bad sockets with matching replacements and had one bad 2102 and now everything works perfectly.
>> 
>> Cheers,
>> Corey
> On Dec 23, 2017, at 5:44 PM, Dean Notarnicola <dnotarnicola at gmail.com> wrote:
> 
> Nice! What did you attach it to for testing?

I used a laptop with terminal software and a usb serial connected to a null modem cable. 

I also checked it with a breakout box setup as a loop back before I bothered with the laptop.  

Cheers,
Corey 




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