Some keys do not work on the Amiga 1200

[skofrant]

I have one more question.
My Amiga 1200 keys stopped working.
The keys that don't work are:
a s d f g h j k l : "
z x c v b n m < > ?
spacebar

I checked these keys in the bootmenu.
Has the keyboard foil damaged itself?

 

[miggymad]

check to see if the ribbon is in the mainboard connector properly

 

[miggygossip]

Static load can break the traces on the KB membrane. Can be fixed with conductive paint/glue or membrane replaced. Membranes avail on ebay and SellMyRetro

 

[skofrant]

The keyboard worked perfectly, but something may have been damaged when I removed it from the keyboard connector on the Amiga 1200 motherboard.

And if I slightly cut the keyboard tape to about 1mm - 2mm and inserted it into the keyboard connector on the Amiga motherboard, maybe all the keys would work?
it is worth a try?

Just a question, if I cut the keyboard connector slightly, do I need to do anything else? Will these pins on the tape have contact?

 

[Xanxi]

Maybe time to get rid of the membrane and use a new keyboard PCB and you will be fine forever.

Ifyou still wan't to fiddle with the ribbon, i once get it back to work with a contact cleaner spray into the header, because it seems the problem was there that day instead of on the ribbon.

 

[IAmAddicted]

It might be also or just the key stamps itself which need a fresh graphite paint.

 

[miggymad]

Check the end of the ribbon cable carefully for splits or damage.

Trimming off 1-2mm from the end of the cable has indeed cured problems in the past so you may as well try it and see if it helps. Use a craft knife or scalpel and cut as straight as possible (use a metal ruler).

If that does not help then as previously mentioned by Xanxi, it might be best to get a new keyboard PCB.

Good luck!