Re: Restoring rubber keyboard on a logic analyzer

http://tabalabs.com.br/videogames/atari/controle_5200/ - that is how I solved this problem 2018-05-02 15:02 GMT-03:00 Paul Koning via cctalk : > > > > On Apr 29, 2018, at 11:44 PM, Tony Duell via cctalk < > cctalk@classiccmp.org> wrote: > > > > ... > > It's not cheap (and

Re: Restoring rubber keyboard on a logic analyzer

> On Apr 29, 2018, at 11:44 PM, Tony Duell via cctalk > wrote: > > ... > It's not cheap (and IIRC you have to use the whole lot in one go), but > Chemtronics make a kit to repair such keypads. Possibly worth it for > a useful instrument though. > > In the UK you can

Re: Restoring rubber keyboard on a logic analyzer

Answered my own question. The repair stuff is called "Aquadag E": https://semicro.org/products/carbon-paint-conductive https://www.ebay.com/itm/AQUADAG-CARBON-PAINT-ARCADE-MONITOR-TV-CRT-CATHODE-REPAIR-SPARES-30-ML-BRUSH-/261808496366 Should work a treat in this application. --Chuck

Re: Restoring rubber keyboard on a logic analyzer

On 04/29/2018 08:44 PM, Tony Duell via cctalk wrote: > It's not cheap (and IIRC you have to use the whole lot in one go), but > Chemtronics make a kit to repair such keypads. Possibly worth it for > a useful instrument though. > > In the UK you can get it here : > >

Re: Restoring rubber keyboard on a logic analyzer

On Mon, 30 Apr 2018, Tony Duell via cctalk wrote: In the UK you can get it here : https://uk.rs-online.com/web/p/conductive-adhesives/3888673/ and I guess it's also available across the Pond. Silly thought: Half a century ago, there used to be a conductive glue that was peddled to the general

Re: Restoring rubber keyboard on a logic analyzer

On Sun, Apr 29, 2018 at 11:29 PM, Maciej W. Rozycki via cctalk wrote: > On Sun, 29 Apr 2018, Paul Koning via cctalk wrote: > >> So that's the answer: graphite powder. I now have a working analyzer >> again. It will be interesting to see if the graphite wears off >>

Re: Restoring rubber keyboard on a logic analyzer

On Sun, 29 Apr 2018, Paul Koning via cctalk wrote: > So that's the answer: graphite powder. I now have a working analyzer > again. It will be interesting to see if the graphite wears off > eventually, I suppose it might but that's ok, I can just do it again. Many years ago I used graphite

Re: Restoring rubber keyboard on a logic analyzer

> On Apr 26, 2018, at 12:32 PM, Electronics Plus via cctalk > wrote: > > Easier solution is to apply some conductive light lube. Radio Shack used to > carry it, and I repaired a LOT of remote controls with it! > > Cindy I made a successful repair. Here are the steps

Re: Restoring rubber keyboard on a logic analyzer

nt: Thursday, April 26, 2018 12:09:49 PM To: cct...@classiccmp.org Subject: Re: Restoring rubber keyboard on a logic analyzer Hello, this kind of keyboards was made using small pieces of conductive rubber to close the circuit designed on the PCB. The rubber was an uniform compound, so even with

Re: Restoring rubber keyboard on a logic analyzer

Hello, this kind of keyboards was made using small pieces of conductive rubber to close the circuit designed on the PCB. The rubber was an uniform compound, so even with severe usage, i.e. high consumption, the conductivity remained constant. However, in more recent / cheaper products, the rubber

RE: Restoring rubber keyboard on a logic analyzer

PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Restoring rubber keyboard on a logic analyzer > > I have a Philips logic analyzer (PM3585) which is about 20 years old at this point. It seems to be basically functional except for the keyboard, which unfortunately is a cr