Search found 16 matches

by jsweinrich
Fri Jul 23, 2021 12:07 am
Forum: Hardware
Topic: Keyboard Repair
Replies: 11
Views: 3541

Re: Keyboard Repair

The silver plating on the keyboard flex cable is very fragile, a couple of in/out of the original connectors and the plating would be ruined. My guess, the original flex cable ends were plated with a thick layer of copper... But, I'm sure there are many other variation on this theme.
by jsweinrich
Thu Jul 22, 2021 2:24 pm
Forum: Hardware
Topic: Keyboard Repair
Replies: 11
Views: 3541

Re: Keyboard Repair

Here it is in a nutshell. I trim the ribbons even. about 2" from the keyboard. Using a paper towel I then apply denatured alcohol to the side of the ribbon that is not the plastic carrier. I found that one side seems to have a removable coating. Being careful not to rub to hard or long. You can chec...
by jsweinrich
Tue Jul 20, 2021 3:10 pm
Forum: Hardware
Topic: Keyboard Repair
Replies: 11
Views: 3541

Re: Keyboard Repair

Thanks all. Although I developed a great method to connect to the trimmed ribbon cables using conductive adhesive copper foil my keyboard was damaged inside... So, yea, I ordered one...
by jsweinrich
Mon Jul 19, 2021 3:10 am
Forum: Hardware
Topic: Composite to VGA
Replies: 6
Views: 2066

Re: Composite to VGA

how/where do I get the four .bin files required?
by jsweinrich
Sun Jul 18, 2021 7:27 pm
Forum: Hardware
Topic: Composite to VGA
Replies: 6
Views: 2066

Re: Composite to VGA

Will this ESP32 work?
It appears that the ESP in the picture is obsolete...
Screenshot 2021-07-18 102425.png
by jsweinrich
Sun Jul 18, 2021 3:03 am
Forum: Hardware
Topic: Composite to VGA
Replies: 6
Views: 2066

Composite to VGA

what are you folks using to convert a ZXvid output to VGA? I bought two converters and neither work well. The first one works OK but glitches randomly. The second one I bought shows two images like a blur.

Thanks,
John
by jsweinrich
Thu Jul 08, 2021 2:44 pm
Forum: Hardware
Topic: Keyboard Repair
Replies: 11
Views: 3541

Re: Keyboard Repair

I was hoping some could provide a method to remove the plastic covering from one side of the ribbons to exposed the conductors of a shortened ribbon.
by jsweinrich
Fri Jun 25, 2021 3:54 pm
Forum: Hardware
Topic: Keyboard Repair
Replies: 11
Views: 3541

Keyboard Repair

Found an old Zedy in my junk pile that has a keyboard that was never mounded but has damaged lead ends. One end is cut off and the other is folded where it probably cannot conduct electrons. Can the conductors be re-exposed?
by jsweinrich
Tue Jun 15, 2021 3:21 pm
Forum: Welcome Area
Topic: Hello from OR
Replies: 3
Views: 1740

Re: Hello from OR

Thanks! I ordered a ZXvid and plan to mount it in the Bud box with the ZX81 and add another RCA jack for that composite output.
by jsweinrich
Fri Jun 11, 2021 4:18 pm
Forum: Hardware
Topic: ZXvid Install
Replies: 1
Views: 904

ZXvid Install

Can the ZXvid be installed in tandem with the existing UHF modulator from an electrical perspective?

This, of course, assumes that one finds a location to mount the ZXvid and provide another RCA connector for output. My ZX81 is mounted in a Bud box so mounting is not an issue.
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