Microvitec Cub with collapsed vertical display

for bbc micro/electron hardware, peripherals & programming issues (NOT emulators!)
User avatar
Posts: 26
Joined: Mon Apr 25, 2016 2:09 pm
Location: Cornwall

Microvitec Cub with collapsed vertical display

Postby Bagpuss » Mon Dec 11, 2017 12:46 pm

Hi All,

I've just dug my Cub out of hibernation, and it has a bit of a problem.
The display has collapsed into a single horizontal line across the middle of the screen.
Looks like vertical scan has gone AWOL.

It's a model 1441 MS4 according to the sticker on the back.

Was just wondering if anyone has any ideas for troubleshooting the issue.


"A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools." - Douglas Adams, Mostly Harmless.