[sdiy] Kurzweil K2000 upgrade

[Nathan Trites]

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> 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 - 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 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 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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