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.
for bbc micro/electron hardware, peripherals & programming issues (NOT emulators!)
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