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Repairing HP-41CY TURBO from W&W
06-17-2018, 06:03 PM
Post: #1
Repairing HP-41CY TURBO from W&W
Hello all,

Finally, I got the HP-41CY TURBO Smile ... Unfortunately, it doesn't work... Sad

After putting new batteries I see a "MEMORY LOST"-message only. Nothing happens while pressing the buttons.
Any ideas what can be the cause?

Some additional questions:
- what kind of batterie is used for the W&W-Board - a 3V or 5V?
- I found another micro-switch on the W&W-Board - but what for?

Any help or a hint is highly appreciated.

Kind regards,
cellfun


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06-17-2018, 07:33 PM
Post: #2
RE: Repairing HP-41CY TURBO from W&W
(06-17-2018 06:03 PM)cellfun Wrote:  Hello all,

Finally, I got the HP-41CY TURBO Smile ... Unfortunately, it doesn't work... Sad

After putting new batteries I see a "MEMORY LOST"-message only. Nothing happens while pressing the buttons.
Any ideas what can be the cause?

Some additional questions:
- what kind of batterie is used for the W&W-Board - a 3V or 5V?
- I found another micro-switch on the W&W-Board - but what for?

Any help or a hint is highly appreciated.

Kind regards,
cellfun

You may find some pointers here, here and here.

HTH

Greetings,
    Massimo

-+×÷ ↔ left is right and right is wrong
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06-18-2018, 03:31 PM
Post: #3
RE: Repairing HP-41CY TURBO from W&W
CY - Part 1

CY - Part 2


Sorry, all written in German.
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06-18-2018, 03:35 PM
Post: #4
RE: Repairing HP-41CY TURBO from W&W
You can ask Raymond... he offers a full restoring service for the HP-41CY

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