Not CPC related, but i have an old Ti 85 with a column of key which doesn't work.
Looking at the board, i saw that a part of a track "disappeared" and have to be redrawn.
I bought a conductive silver pen (i'am totally unable to solder anything let alone something precise), please someone can confirm what i need to do.
* I have to scratch the surface to remove the isolator
* i have to draw a thin line in the hole crated with the pen
* Let dry, protect with adhesive
Am I right ?
(photos possible if needed).
I used silver to fix the membrane of my Plus not so long ago:
Keyboard problem in my Plus. (http://www.cpcwiki.eu/forum/technical-support/keyboard-problem-in-my-plus/)
If you have a board, I would expose the track a little bit, clean the area, use mask tape and apply the silver on top. In my case I used a very liquid varnish that lets a thick silver layer once it dries. It worked very well.
Quote from: ||C|-|E|| on 14:38, 04 May 16
I used silver to fix the membrane of my Plus not so long ago:
Keyboard problem in my Plus. (http://www.cpcwiki.eu/forum/technical-support/keyboard-problem-in-my-plus/)
If you have a board, I would expose the track a little bit, clean the area, use mask tape and apply the silver on top. In my case I used a very liquid varnish that lets a thick silver layer once it dries. It worked very well.
By mask tape, you mean to put a bit of tape to avoid "writing" to far away from the track right?
Cause i'm also thinking, once the silver will have dryied, to put a bit of tape on top to protect it.
Yup, the mask tape is to make it nicer and avoid the silver going everywhere, possibly touching other tracks :). In my case it was necessary because the varnish is very very liquid :)