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HP-41CY re-initialization ROM
12-26-2019, 07:54 PM
Post: #43
RE: HP-41CY re-initialization ROM
(12-26-2019 12:42 AM)Sylvain Cote Wrote:  I am still searching how to disable QROM pages with the 41CY like it is possible with the RAMBOX & RAMBOX II.
Short answer: Not possible with the CY.
It's the trade-off for having it all inside instead of mounted externally;-)
The only switches in a CY are the Turbo switch and the write protection switch for page 8,
where the RAM-Box OS resides normally.

To override ill-behaved RAM pages you could try with a couple (better quadruple) of 8K ROM modules,
like the Petroleum or Math/Stat pacs.
However if the calc hangs after trying to switch banks then the best thing
is to wipe out that bank completely, and reinstall using Jürgen's method.


I could also revive your CY easily, but if you have a Clonix,
Jürgen's method may be cheaper, since you can do it yourself;-)

-- Ray
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Messages In This Thread
RE: HP-41CY re-initialization ROM - PeterP - 11-03-2019, 06:19 PM
RE: HP-41CY re-initialization ROM - PeterP - 11-04-2019, 03:48 PM
RE: HP-41CY re-initialization ROM - PeterP - 11-06-2019, 03:36 PM
RE: HP-41CY re-initialization ROM - CY-CL - 10-27-2019, 04:16 PM
RE: HP-41CY re-initialization ROM - hth - 11-03-2019, 05:59 PM
RE: HP-41CY re-initialization ROM - hth - 11-03-2019, 08:32 PM
RE: HP-41CY re-initialization ROM - PeterP - 11-06-2019, 03:39 PM
RE: HP-41CY re-initialization ROM - hth - 11-06-2019, 07:45 PM
RE: HP-41CY re-initialization ROM - PeterP - 11-06-2019, 07:45 PM
RE: HP-41CY re-initialization ROM - PeterP - 11-09-2019, 08:21 PM
RE: HP-41CY re-initialization ROM - PeterP - 11-09-2019, 08:19 PM
RE: HP-41CY re-initialization ROM - Raymond Del Tondo - 12-26-2019 07:54 PM
RE: HP-41CY re-initialization ROM - CY-CL - 12-27-2019, 07:32 PM



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