130 XE keyboard membrains
Both of my 130 XE's have failed on the keyboard membrain the tracks have cracked , I tried using the the conductive pens but it only last for about a hour or so before they crack some where else or in the same place, so I am looking for a supplier or some one who has some spare membrain matrix sheets.
The type of keyboard used is known as a "Low-resistance contact", the
resistance being about 1000 ohms or so. As you use the keyboard, the
resistance of the contacts tend to go up. For the regular keyboard and
the RESET key, this increase in resistance causes no problems. But the
console keys (OPTION, SELECT, and START) are read by a different IC, and
the change in resistance will eventually keep the console keys from
working. (The HELP key is actually read as just another letter key).
