HP48G assistance request

[unixronin]

I have a HP48G graphing calculator on which the on/off/cancel button has gone very flaky.  It will no longer power on just by pressing on -- at minimum, a warm-start (on-c) is required; I can't power it off -- I have to wait for it to shut itself off; and I can't cancel operations or clear error messages.

HP no longer offers service on the HP48G, and it's pretty tough right now to justify the cost of replacing it with a HP48GII (around $110) or HP49G+ (around $150).  Does anyone know of a repair procedure for a flaky HP48G key (above and beyond the non-trivial problem of getting the never-intended-to-be-opened-after-manufacture case open)?

Comments

Re: this may be too much info, if so just ignore me

[koyote.livejournal.com]

not sure where to find 48X right now. It is a complete and truly fine emulator for most Xfree86 systems. google that one :)

a lot of good programming info is on the hpcalc website, too. But there is always the question of do you really want to get into it.