Hpc Owner’s Manual Volume 2. Two (2) hewlett-packard soft cases for hp 41c hp 41cv or hp 41cx calculators. Both have stuck. Vintage Hp 41c Experienced. Title: HP CX Owner’s Manual: Volume 2: Operation in Detail; Author: Hewlett- Packard; Book condition: Used, Very Good; Quantity available: 1. Title. HPCX Owner’s Manual Vol2. Operation in Detail. Catalog Number. Type. Text. Date. Publisher. Hewlett-Packard Company ( HP).

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The repair consisted of a few drops of cyanoacrylate glue, and a wrap of fine wire around the posts until the glue had thoroughly set. The HPA “X-memory” module increased the extended memory space by registers bytes. The Pi key has been Shift-zero for so many years I don’t need to think about it.

The listing you’re looking for has ended. I found that the CPU board is connected to the keyboard by a set of flexible connectors which rely on pressure to maintain contact. Learn More – opens in a hp-41vx window or tab. There are four screw posts in the HP, two near the bottom and two just above the battery hatch.

Notice the two rows of contact fingers between the top screw posts, and the two long rows and one short row between the bottom screw posts. Ownerz similar arrangement connects the module back-plane and battery connectors to the keyboard circuit.

Wrapping Up Well, that’s all that I needed to do to get this calculator working again. Sell one like this. I will assume you have at least hobbyist-level skills in electronic equipment repair.

Also remove the three flexible interconnects, and the plastic frame that holds them in place be careful not to crack the frame.

First disassemble the machine and remove the CPU board. Just be careful when tightening not to strip or crack the screw posts. Also, HP provided a respectable number of software packages as well as ROM modules with pre-programmed solutions. The cover for the charging jack is missing although the calculator didn’t ownerx with a rechargeable battery.


Note that the printer A can power the HP Peripherals such as printers, disk drives, cassette drives, add on program modules outclass anything available in todays products and enable you to print solutions or save it in a variety of owndrs media. I then proceeded to give the machine a thorough cleaning. Sell now – Have one to sell?

Of course the fact that I was dreaming of owning one when I was a teenager but had no money for it, is largely responsible for my opinion today and the fact that I bought one from ebay. I had used a 32E before and I knew I had to have this Especially the possibility to access ROM code made it the preferred toy for “hackers”.

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And although it looks mxnual it is rather slow. On the other hand, if you’re not comfortable disassembling electronic equipment or working with a soldering iron, you might be better off getting a more experienced friend or colleague to help you out.

This item will ship to United Statesbut the seller has not specified shipping options. Failure of my earlier HP 11C calculator due to keyboard deterioration you may substitute 12C or 15C here after only about 5 years led me to buy a 41CV. Arguably the most capable calculator ever made It was love at first sight, when I saw this shiny new HP 41CV in a store window back when I was Any jolts received by the calculator take their toll on the screw posts.

Apply some cyanoacrylate to the wire around the top posts and trim off any excess wire. Without most of the keyboard labels, to be used with keyboard overlays. About ownets magnetic mqnual for the magnetic card reader.

HP-41 CX Owner’s Manual : Volume 2 : Operation in Detail

The one I bought is in perfect condition. Email to friends Share on Facebook – opens in a new window or tab Share on Twitter – opens in a new window or tab Share on Pinterest – opens in a new window or tab Add to watch list. After the listing has been stopped when this “END” is displayed switching to PRGM mode will display the program and it is possible to delete it step-by-step to reclaim program memory.


The battery contacts are part of the module port back-plane, and the whole assembly is just a friction fit into the back of the case.

Under no circumstances will Stefan Vorkoetter or the Museum of HP Calculators be liable for any loss or damage resulting from use of this information. Sanding the contacts merely got right down to the plastic under the contacts. Thousands of user-written programs are available for it, it still has active internet groups and several websites dedicated to it. Image not available Photos not available for this variation.

The remaining registers can be used for program code. This amount is subject to change until you make payment.

HP 41CX Calculator Owner’s Manuals : Volume 1 & 2 | eBay

Apparently, only two such modules could be installed. Refer to eBay Return policy for more details. Reportedly, HP never built this power supply but rather release a rechargeable battery pack that had the connector built-in. This pressure is provided by the screws that hold the calculator together, but the plastic posts that the screws mnual into had cracked interestingly enough, my Braun shaver suffered hp-411cx same failure on the very same day.

You can also see the foam rubber strips on which the CPU board is resting.