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HP HP-41 C, Repair Manual

The HP HP-41 C Service Manual is available for free download at our website, providing users with detailed instructions and insights into the functionality of this classic calculator. Obtain a comprehensive manual to better understand and optimize the performance of your HP-41 C.

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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

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Summary of Contents for HP-41 C

Page 1: ...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 ...

Page 2: ...The HP 41C calculator not working anymore ...

Page 3: ...The broken strip battery corrosion This strip can still be used to connect external modules ...

Page 4: ...h the third copper contact from the left and the plus wire with the 11th copper contact on the main board of the calculator by using the scotch Remark The main board of the calculator has 21 copper contacts The third from the left is the minus contact the 11th is the plus contact Other contacts are used for connecting additional modules see picture to the right ...

Page 5: ...connect the second and third battery Remark The connector between the both batteries in the middle connect the four batteries in serie Attach the cover back with the screws The broken connector still helps to connect the wires to the mainboard contacts When the back cover is attached to the calculator again then it presses the wires down on the mainboard contacts 5 4 3 ...

Page 6: ...Press the ON button you re HP41C calculator is back working ...

Page 7: ...Contact stephang at bluewin ch ...

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