Question about HP 32sII Calculator
I carefully opened my HP 32S but this has not be useful for fixing it: there isn't serviceable parts inside, only a big IC and a lo of thin wires that start from IC's leads.
I could have opened the keyboard assembly too, but I think that the problem is more serious and it depends from the CPU.
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Posted on Jan 02, 2017
lala linda is right. . . repairing the power pin isn't that expensive ... In fact I've fixed some myself and it's really not that hard. It is time consuming and tedious to make sure that all the bits and pieces fo back in the right place. Take some pix as you take it apart and you will find that's it much easier when you go to re-assemble the unit. btw . . . The power pins are available on the net for $ 10 or less usually.
Also . . .Once you get it fixed get a Cable retention device to make sure you don't damage the pin a second time. Personally I recommend (and use) this one.
Posted on Sep 24, 2008
Majority of time it's the lcd that has a problem which creates the red line, otherwise it's the GPU (video processor).
Try hooking up your computer to an external monitor. If you see the line on the external chances are it's the lcd.
This method of testing isn't fool proof but either way the problem is hardware related.
Let me know if you have any other questions.
Posted on Mar 04, 2009
Left side keys - moon-hibernating mode, club+hp - takes you to hp internet club (lots of resources,free classes, etc on hp), globe spinning-takes you to internet-yourhomepage, envelope-takes you to windows email, magnifying glass- takes you to windows live search, ?-takes you to help
right side keys- arrowup1-opens disk drive, arrow up 2-opens 2nd disk drive if you have two, solid dot-opens dvd suite, arrows left-rewind, arrow right -fast forward slow, 2 arrows right-fast forward fast, and solid square -pause these are all media functions
I discovered all of this by taking a chance and pushing the key to see what happened. really wish they put a manual, or screen showing functions for the keyboard. hope this helps someone else!
Posted on May 05, 2009
Very possibly, yes. Usually the internal parts of RF keyboards are heavily customized and a shop would need to keep tons of parts for every different keyboard under the sun.
Also, replacement plus spares will often cost more than a new keyboard, so there's little advantage in repairing.
Depending on the spillage, sometimes you can repair the keyboard. RF keyboards are much more difficult to fix because the spillage may have shorted circuits or oxidised contacts and tracks.
But if you've nothing to lose, and especially if some keys are working (indicating that the transmitter electronics, the most delicate part, is still alive), then you can take apart the keyboard (screws underneath, and retainer clips too). Under the shell there are other screws holding the typing surface. Removing them, the back of the surface comes off, revealing a contact membrane and a wealth of printed curlicues.
Wipe the curlicues with a lint-free cloth and alcohol to remove coffee and sugary liquids. Inspect carefully for oxidation and rust; sometimes you can remove it with a pencil rubber. Spray with a contact enhancer spray such as DeoxIT.
The membrane is the tricky part: usually lukewarm water or alcohol will do, but it depends on the formulation of the contact pads (usually black round thingies). Sometimes you can see which pads have been affected by the spillage and clean them with a cotton swab.
With RF keyboards priced around US$ 30, frankly I'd do that only for the fun of it.
Posted on Oct 29, 2009
HP LaserJet 2840 is an old machine. I would like to propose Canon imageCLASS MF8050 to suit your requirement.
Posted on May 26, 2010
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