Hi, very good. May i ask you if the problem was in the connectivity between the keys d/t oxydation and you fixed with that bridge? But in tris case why it didn’t affect all keyboard? Are Just those keys in series? Or The problem was in the the magnets of the rub contacts?
You need to know how keyboard matrix circuit works. An open in the circuit may affect just one or many keys, depending where the open is on the circuit.
It depends of how much the carbon layer is preserved. For several deterioration, rubber alcohol won’t work and could even aggravates the problem. In this case you must use some conductive paint (carbon, silver or nickel solution). There’s a plenty of options in stores.
@iamVn0neshow you must use multimeter bro.use continuity mode with the beep sound. Then follow the strip lines on the circuit board.. Step 2. Use magnifying glass or microscope see the connections if have corosion or decaying line. If have just cut a small strip of wire then solder.
Hi, very good. May i ask you if the problem was in the connectivity between the keys d/t oxydation and you fixed with that bridge? But in tris case why it didn’t affect all keyboard? Are Just those keys in series? Or The problem was in the the magnets of the rub contacts?
You need to know how keyboard matrix circuit works. An open in the circuit may affect just one or many keys, depending where the open is on the circuit.
How to get carbon circuit board.?
What mixture are using to clean the carbon on keys.
@@K.s.richardson6922 100% Isopropyl alcohol or contact cleaner easy dry.
Great thanks
It depends of how much the carbon layer is preserved. For several deterioration, rubber alcohol won’t work and could even aggravates the problem. In this case you must use some conductive paint (carbon, silver or nickel solution). There’s a plenty of options in stores.
If only I know also how to find faulty key terminals, I could fix my Casio SA-35 with dead keys..but I don't 😔
See if you can find service manuals for Casio keyboards, which usually have keyboard matrix circuit diagrams.
@iamVn0neshow you must use multimeter bro.use continuity mode with the beep sound. Then follow the strip lines on the circuit board..
Step 2. Use magnifying glass or microscope see the connections if have corosion or decaying line.
If have just cut a small strip of wire then solder.