48G+ Case Crunching



#5

48G+ passes self-test including keys, but any key pressed along the mid-right side causes a creaking crunchy squeeking noise, reproduced by pressing on the top case there too. I don't see any cracks, but do note that that there is an stepped edge along the right side where the top case lip slightly overhangs the bottom side (or the bottom is squeezed in) although the plastics all seem fairly stiff and sturdy.

This isn't a huge bother, but slightly annoying, and I'd fix it if the fix were simple. I doubt machines came from the factory this way, but never know...

The calculator is new to me and otherwise has no signs of wear or abuse.

I read but did not completely understand http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=125 "HP48 Disassembly," especially step 6 to separate the case halves. I surmise there are alignment tabs but don't how they are oriented or re-engaged.

Anything relatively non-destructive to try? Thanks!


#6

Non destructive. I think not Warren. You must be living in a dream world. Sorry, thats just my bit of sarcasm to get me over the fact that I too, have to drill apart my unit for some major surgery. Sorry that i cant comfort you any more than that. I'm afraid its "the drill" for your unit too if you want to pry the halves apart.

Paul

PS If I succeed I'll let you know.

#7

Hi Warren,

My 48G does the very same thing...I think it's just the way the
case is designed. In my opinion, it's certainly not worth
the risk of prying the case apart just to fix that.

Best regards, Hal

#8

http://www.math.uiuc.edu/~handuong/hp48/open

The creakiness, however, is normal. It simply has to do with the fact that the case is made of a hard yet flexible plastic. So don't open your calculator if that's the only reason to do so.


Possibly Related Threads...
Thread Author Replies Views Last Post
  Best HP calculator for crunching numbers rpn fan 51 5,031 08-05-2013, 03:17 PM
Last Post: rpn fan
  Resuming an old post......................while crunching numberes aurelio 11 1,306 09-25-2012, 08:31 AM
Last Post: Frido Bohn
  HP 48GX and 48SX and 48G and 48S and 48G+ Mad Dog ebaycalcnut 2 516 04-17-2007, 08:55 PM
Last Post: James M. Prange (Michigan)
  HP48GX crashing while crunching numbers Jeff 1 391 05-20-2005, 05:03 PM
Last Post: James M. Prange (Michigan)
  48gx = 48g +96k ? = 48g+ +32k? Eric Lundgren 2 460 02-21-2005, 03:44 AM
Last Post: James M. Prange (Michigan)

Forum Jump: