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Calculadoras Calculator blog HP Repair book
Publicado el por JGD
HP Repair book
Finally it is here!! 133 pages of our repair experiences and methods. Thanks also to the help and advices of Ignacio Sánchez, who suggested many of the repair methods and helped testing them.
You can click on the link below:
It is also available on all amazon country sites.
Here is the chapter list:
1. The HP41C family of calculators
Some History
Special features
Serial number and places of production
Peripherals
The HP-IL loop
2. Identify your HP41
C, CV and CX
Full nut and half nut
Tall keys and normal keys
Screen revisions
Special models
3. Tools and Parts
Tools - Required
Tools – nice to have but not required
Contact enhancers
Glues
Conductive inks
Cleaning
Documentation
Other tools
Spare Parts – replacement parts
4. Modes of Failure (or typical problems in HP41c Calculators)
Types of failures
5. Opening and Closing the calculator
Opening
Closing
6. Battery and ports module replacement
7. Zebra replacement
Installation instructions
8. Broken lower post repair
Material needed
Use longer screws.
Cyanoacrylate over the inner part of the post.
Broken post repair
9. Upper Post repair
10. Broken screw head supports
Instructions: first method: back repair piece.
Alternative Method: integral piece.
10. Corroded Circuit Traces
11. Screen Problems
Dirty screen
Screen repair
Damaged Screen Protection
12. Damaged Keyboard
13. Calculator Testing
Test with a Service Module (C or CV/CX)
HP41c
HP41cv/cx
Test without Service module
14. New: CL module installation
15. Peripheral repairs and other items.
Hp 82104A Card Reader
Vinyl Case
Missing port covers
Battery holder
16. Conclusion
Aknowledgements
Appendix 1: The Calculator Store Spare Parts
Appendix 2:HP41C List of parts
Appendix 3: Full-nut circuits
Appendix 4: list of software modules
References and interesting websites.
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