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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No scratches on the back, keys feel a bit worn from extensive use, front dirty seems someone glued a keyboard overlay to the unit. Cut 16 pieces of gauge wirewrap wire to the appropriate length to reach from the bottommost contacts on the keyboard to the corresponding contacts on the CPU board. I will assume you have at least hobbyist-level skills in electronic equipment repair.

Memory space is shared between programs and data storage, allocation is performed using the SIZE command. Learn more – opens in new window or tab. Ownere module HPA, serial number lwners Magnetic program card holder with 39 unmarked magnetic cards.

HP CX Owner’s Manual : Volume 2 : Operation in Detail by Hewlett-Packard

The iron will heat the strip, and the solder behind it, and fasten it to the tinned copper area. This time I didn’t install a little spring which obstructed the card slot – now it works!!

It’s fairly easy to pull out to work on it. The HPA quad memory module added registers giving a total of registers. It was most likely lost during a previous repair attempt the rubber feet were also missing. Subject to credit approval. Be sure to orient the board correctly. Get the item you ordered or mabual your money back.


When the glue has set thoroughly a few minutes for cyanoacrylate, or overnight for styrene solventunwrap the bottom posts.

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Also, there isa label reading “34 03 “. Then lift off the bezel, being careful to note its orientation. Also at the bottom is the CPU board, which is connected to the keyboard by flexible interconnects, aligned with the keyboard by the bottom screw posts, and held in place by the back of the calculator.

To disassemble the calculator, lay it face down on a soft surface and remove the battery. One of the port covers is missing the card reader was plugged into it when I got it. Most relevant reviews See all 19 reviews.

Solved: HPCX manuals – HP Support Community –

Just be careful, check all your work as you finish each step, and your chances of success are very high. First disassemble the machine and remove the CPU board. For additional information, see the Global Shipping Program terms and conditions – opens in a new window or tab No additional import charges on delivery Delivery: It helps to lay a narrow metal ruler over the wires at the place where they will bend half way between the corresponding sets of pads to get them all to bend in the same place.

This amount is subject to change until you make payment. At this point, if there’s nothing else to repair, you can reassemble your HP as described in the previous section. 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 A very popular calculator.


Failure of my earlier HP 11C calculator due to keyboard deterioration you may substitute 12C or 15C here after only about 5 years h-41cx me to buy a 41CV.

Push the CPU board down over the screw posts until it is sitting on the foam rubber, parallel to the keyboard.

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

Back to home page Return to top. To solder the new contacts in up-41cx, first tin the copper areas and apply a small amount of solder. Without most of the keyboard labels, to be used with keyboard overlays. I’m not an EE by any stretch of the imagination, but I’ve been tinkering with electronics since I was a little kid, so I don’t mind taking things apart to try and fix them.

A package of blank magnetic cards. Of course the fact h-41cx 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. Any international shipping and import charges are paid in part to Pitney Bowes Inc.

I used a very slightly dampened rag to clean all the keys, and the spaces between them.