HP Forum Archive 16

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48GX Repair Question Message #1 Posted by Ron on 8 Nov 2006, 10:46 a.m. Is the "press above the D to make all the keys work" problem easy to remedy, or a permanent condition?

Re: 48GX Repair Question Message #2 Posted by Maximilian Hohmann on 8 Nov 2006, 11:19 a.m., in response to message #1 by Ron Hello! Quote: Is the "press above the D to make all the keys work" problem easy to remedy, or a permanent condition? Not easy to remedy ... but with a lot of patience and skill and some luck it can be cured. So they say. Look here: http://www.hpcalc.org/hp48/docs/opening/ I din't dare to perform this kind of surgery on my HP-48 yet, I rather keep the housing pressed with my other hand ... or use a different calculator! Greetings, Max

Re: 48GX Repair Question Message #3 Posted by Han on 8 Nov 2006, 10:06 p.m., in response to message #1 by Ron Opening the HP48 Repairing the HP48 These are my own docs on how to open and do repairs on the HP48. However, please be warned. MANY, and I do mean MANY, people have broken their HP48 because they have no idea what they are doing. I've seen a quite a few "for parts only" calculators on eBay that even refer to my two links above. If you plan to open up the calculator, make sure you what it is you're getting into. The most fragile parts are the six twist-tabs that hold the PCB and keep it tightly pressed against the key contacts. Twist these too many times and you will break them, oftentimes rendering your semi-working HP48 quite useless except for parts. Edited: 8 Nov 2006, 10:06 p.m.

Re: 48GX Repair Question Message #4 Posted by Ron on 9 Nov 2006, 12:30 a.m., in response to message #3 by Han Thank you, Max and Han! This is just what I'm looking for.

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