I found the following picture about a modified (or repaired?) motherboard.
I've already seen something like this, but I can't remember the reason of such modifications... any idea?

Derek_Stewart wrote:but remember the QL display has a overscan, which produces a larger display than most RGB outputs.

Yes it's true. Anyway, also a 20 € Gonbes board can (almost decently) cope with QL overscan. But yes, you're right: this may cause issues.

I've just found this device I didn't know.
It accepts some kind of RGB input. Probably it's worth investigating...

https://www.serdashop.com/MCE2VGA

Thank you again Andrew!

Thank you!

For me, the minimun upgrade requirements would be:
some more colors (not necessarily thousands)
some more CPU speed
some better sound (at least AY sound chip)

So it has some minor corruption, but runs smoothly. Thanks!

What about utilizing an existing (thick) keyboard? Would it be adaptable as a case? https://ae01.alicdn.com/kf/HTB1GYefbu285uJjSZFwxh7.cVXaR/Thick-PBT-62-Keys-Mechanical-Keyboard-Keycaps-White-Black-Blank-Printed-OEM-Profile-ISO-Key-Caps.jpeg_q50.jpeg https://cdn.ecommercedns.uk/files/8/232808/9/913...

Derek_Stewart wrote:Hi,

This also runs on the Q68 under SMSQ/E in DISP_MODE 1 or 512x256

The final fractal zoom sequence is tediously slow. Is it smoother/faster with Q68 instead?