HP33E how to input numbers  Printable Version + HP Forums (https://archived.hpcalc.org/museumforum) + Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum1.html) + Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum2.html) + Thread: HP33E how to input numbers (/thread242905.html) 
HP33E how to input numbers  RalfGeiger  04292013 Hi all,
I got a working HP33E in my hands :)
The calculator starts with:
Is there something wrong with the display, or
*EDIT* I think I solved it. There must be a broken
Edited: 29 Apr 2013, 3:31 p.m.
Re: HP33E how to input numbers  Dieter  04292013 The 33E  as well as the other models of the Spice series  come in two flavours: as opposed to the later versions, these calculators originally were built in a solderless manufacturing process. Many of these, including my own 34C, suffer from missing display digits due to bad contact inside the device. In this case you might try this: First, turn on your 33E and press [STO] and then [ENTER]. After a few seconds the complete display should light up (i.e. all digits display "8" and all decimal markers between them as well as the minus sign on the left will light up). This way you can easily tell if and where a digit does not work. The mentioned key sequence initiates the internal Spice series selftest. If an error message appears, something went wrong. If a digit is missing, you can try to apply some gentle pressure below the display and see if something changes. You may also try twisting the whole case with both hands (gently and carefully!). Since you said the 33E starts with a 0, 000 display, obviously the second digit does not work  standard mode is FIX 4, so the initial display should read 0,0000.
Dieter
Re: HP33E how to input numbers  RalfGeiger  04302013 Hi Dieter,
thank you for the hint with the self test.
Thanks Re: HP33E how to input numbers  Michael de Estrada  04302013 Try squeezing the case together at the top and see if the missing display digit lights up. If it does, open the case and place some thin electrical tape in the case grooves for the display contacts so that they press harder against the circuit board traces.
Re: HP33E how to input numbers  RalfGeiger  04302013 ... it doesn't ... Hope to have some time next Weekend to
Thanks Ralf
Re: HP33E how to input numbers  RalfGeiger  05072013 Finally managed to open the calc without damaging the case.
Best regards Re: HP33E how to input numbers  Ron Ross  05072013 You might consider using fixthatcalc.com to have your calculator repaired. I have an Hp33C and it is a nice calculator to use for most of my work (no factorial key and that is a must for some types of number crunching).
