Dilwyn Jones wrote:
> I've just been upgrading an old QL from JM ROM to JS ROM and
> accidentally broke one of the keyboard membrane tails.
>
> This QL has been in use from 1984 without a single change of keyboard
> membrane (although it's only had light use in the last 3 or 4 years).
> Is this some form of record, nearly 22 years from a single keyboard
> membrane?
Probably.
Usage does not govern the life. The plastic gets brittle and cracks is
moved. All the original QLs had their tails bent right back where they
emerged. They usually break there. If the curve there is gentle and
the QL is not opened, they should last for ever.
>
> After inserting the JS ROM I noticed that pin 1 was missing on the
> base (0000) JS ROM. The QL still seems to work OK, which implies it's
> probably an unused pin - anyone know?
Quite normal (8-)#
Tony
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