> so replying to my request, looks like no
> one here knows an answer to the named issue,
> it never happend before?
> any repair address in berlin?

Harald - the 'switches' on the panel are actually just sandwiches of plastic
and conductive layers. These sandwiches are right inside the overlay on the
panel. If you want to 'get at' the switch, you'd need to peel it off the
panel.

That having been said, there's really not too much to 'see' there. If
you're very lucky, it might just be that the button is permanenly stuck
down. If so, you might be able to use something 'sticky' to put it back up.

It would be important to know if this is the _only_ switch which is
affected, or if others are also affected. If there's more than one switch
which is not behaving properly, then it is less likely the membrane in the
panel itself and more likely a sick part or a bad connection on one of the
plastic connections. (While these connections looked good in the pictures
you provided, it would only take a hair-line crack further down the neck of
the cable to cause problems).

If the membrane switch is found to be bad, then:

1) You could keep your eyes open for a replacement Polaris panel/switch
(they do come up on Ebay every now and then).
2) you could make connections directly to the circuit board yourself and add
your own switch (either drilling a hole in the panel where the LF switch
location current is - or simply mounting it somewhere else.

David Clarke