HP HP-41 C

HP-41 C repair guide
A simple instruction to get a HP 41C working when battery contact strip is broken.
Requirements:
A small size screw driver
Aluminium for connecting the batteries
Two wires for minus / plus connectors
Cohesive scotch

HP HP-41 C Specifications

General

Model	HP-41C
Memory	63 registers (expandable)
Year Released	1979
Type	Scientific / Programmable
Display	12-character LCD alphanumeric
Programming	Keystroke

Summary

HP-41 C Repair Guide for Broken Battery Contacts

Problem Identification: HP-41 C Failure

Describes the HP 41C calculator not working, indicating a need for repair due to a broken battery contact strip.

Root Cause: Battery Contact Strip Corrosion

Identifies battery corrosion as the cause of the broken strip, noting its potential for connecting external modules.

Repair Procedure: Opening and Wiring

Instructions cover opening the calculator case and connecting wires to specific contacts on the mainboard.

Battery Connection and Case Reassembly

Details connecting wires to batteries using aluminum and reassembling the calculator cover after repairs.

Confirming Successful Repair

Confirms the HP 41C calculator is operational after the repair by pressing the ON button.