shit movie, your hand is shaking more than the picture, didnt capture whole screen due to bad phone orientation, and you made it a short so cant even rewind 😒

from what I can (hardly due to above) tell its not shaking, vertical oscillator failing to lock? https://www.repairfaq.org/sam/monfaq.htm#monversq
It looks like late CRT with digital controls, how about revealing the big secret of its make and model? 😀
you can start diagnosing by turning brightness way down, checking other resolutions/video modes, going into monitor setup and changing picture height to minimum and maximum, gently whacking it

Bouncing vertically image means the vertical sweep circuit is starting to break especially solder joints breaking and capacitors.

Cheers,

rasz_pl wrote on 2022-04-11, 18:30:

shit movie, your hand is shaking more than the picture, didnt capture whole screen due to bad phone orientation, and you made it […]
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shit movie, your hand is shaking more than the picture, didnt capture whole screen due to bad phone orientation, and you made it a short so cant even rewind 😒

from what I can (hardly due to above) tell its not shaking, vertical oscillator failing to lock? https://www.repairfaq.org/sam/monfaq.htm#monversq
It looks like late CRT with digital controls, how about revealing the big secret of its make and model? 😀
you can start diagnosing by turning brightness way down, checking other resolutions/video modes, going into monitor setup and changing picture height to minimum and maximum, gently whacking it

Sorry for my hand shaking and the shortness 😅 I'll try that, thank you!

pentiumspeed wrote on 2022-04-11, 19:26:

Bouncing vertically image means the vertical sweep circuit is starting to break especially solder joints breaking and capacitors.

Cheers,

Yeah, it could be that too.
Thank you!