HP-41 Card Reader 82104A repair questions

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HP-41 Card Reader 82104A repair questions

12-30-2017, 08:39 AM (This post was last modified: 12-30-2017 08:40 AM by AndiGer.)

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AndiGer Offline

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Posts: 594
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RE: HP-41 Card Reader 82104A repair questions

The LED inside is for detecting a clipped / non-clipped card (when writing).
How this really works I didn't care :-)
CHKSUM ERROR often derives from the card running too slow or too fast.
Did you trim the reader by turning the excentric cam?
Sometimes you have to fix the "clutch" as well.
Good luck
Andi

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Messages In This Thread

HP-41 Card Reader 82104A repair questions - Craig Bladow - 12-30-2017, 02:34 AM

RE: HP-41 Card Reader 82104A repair questions - PeterP - 12-30-2017, 05:53 AM

RE: HP-41 Card Reader 82104A repair questions - AndiGer - 12-30-2017 08:39 AM

RE: HP-41 Card Reader 82104A repair questions - Craig Bladow - 12-30-2017, 07:49 PM

RE: HP-41 Card Reader 82104A repair questions - Craig Bladow - 12-31-2017, 04:54 AM

RE: HP-41 Card Reader 82104A repair questions - PeterP - 12-31-2017, 05:47 AM

RE: HP-41 Card Reader 82104A repair questions - Craig Bladow - 01-01-2018, 11:27 PM

RE: HP-41 Card Reader 82104A repair questions - larthurl - 01-02-2018, 07:56 PM

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