[sdiy] Kurzweil K2000 upgrade

[music at artxtek.com]

Thanks for the link to the images. i will try burning them this weekend and see what happens.

Regards Tony

October 6, 2022 11:42 PM, "Andrei Kudryavtsev" <andrei.kudryavtsev at gmail.com (mailto:andrei.kudryavtsev at gmail.com?to=%22Andrei%20Kudryavtsev%22%20<andrei.kudryavtsev at gmail.com>)> wrote:
Hi Tony,
try this. I successfully converted OS1 to OS 3.87 in the past. You may also decide to replace setup roms to v3, but that's not necessary to get it running to the OS.
https://www.dropbox.com/s/5wjalasgexkdtgi/V3.87C.zip?dl=0 (https://www.dropbox.com/s/5wjalasgexkdtgi/V3.87C.zip?dl=0)
On Thu, Oct 6, 2022 at 3:50 PM Nathan Trites <nathan at idmclassics.net (mailto:nathan at idmclassics.net)> wrote: I have a K2000 at my shop that's in the queue, I'll try to see what Pseudo/Godot firmware it has and can copy them for you if they're newer.

Nathan 
On Thu, Oct 6, 2022 at 10:58 AM <music at artxtek.com (mailto:music at artxtek.com)> wrote:
After searching the internets I finally found the info on how to upgrade a Rev A, B or B2 Engine board that does not have JP7 installed.
I noticed a reference to the upgrade on monotanz.de (https://monotanz.de) - a seller of upgrade ROMs and the site owner sent me a PDF containing the info.

So the K2000 is running Calvin v 3.87 with just one small issue - it locks up after booting up unless it is in diagnostic mode.
It runs all the diagnostic tests repeatedly with no issue but when I boot into "regular" mode it freezes after a few minutes.
Further study of the upgrade notes indicates that an upgrade of the Pseudo and Godot GAL chips is highly recommended to fix "stability issues".

I currently have Pseudo v2.0 and Godot V3.0. I found images for the K2000R on DBWBP.com (https://DBWBP.com) for Pseudo v5.0 and Godot v5.0 however when I try either or both of these chips the K2000 will not boot at all.

Does anyone have K2000 images for Pseudo v4.0 and Godot v5.0, or am I missing something when I burn the images?

Regards Tony

January 31, 2022 1:08 PM, music at artxtek.com (mailto:music at artxtek.com) wrote:
Hi All

I recently acquired a Kurzweil K2000 from a local charity shop.
It is in excellent condition, back-light is still bright and functional, however it only has OS version 1.0 Calvin so I decided to try and upgrade it.

I found the site DBWBP.com and downloaded the v3.87C Engine images and the Setup images which I have burned to EPROMS, but when I put them in the K2000, it boots but cannot find the Setup ROMs. I checked the jumper settings and I have a Rev A Engine board that only has JP1 no JP7.

Much searching the internet located a Service document that stated that the PSEUDO and GODOT GAL chips also need an upgrade to PSEUDO v4 and GODOT v5, currently I have PSEUDO v2 and GODOT v3.
The DBWBP.com site has images from a K2000R for PSEUDO v5 and GODOT v5.
Can anyone advise if these will work or where I can find images for PSEUDO v4 and GODOT v5 that will work in a K2000 running OS v3.87?

Regards Tony
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