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mste video problem ...
Posted: 31 Dec 2020 18:01
by frank.lukas
I have some video problems with a atari mega ste mainboard. Any ideas?
Re: mste video problem ...
Posted: 31 Dec 2020 18:09
by Tomswork
The video jittering is most likely the psu and or the capacitors in the video circuit.
Tom
Re: mste video problem ...
Posted: 31 Dec 2020 18:10
by exxos
Could be bad connection on a sync ...
Re: mste video problem ...
Posted: 31 Dec 2020 19:30
by frank.lukas
I done all ...
The same fault are also in the RGB Video Mode.
My guess is that the combo chip mmu/glue/blitter is faulty, I dont know? Can I test the chip?
Re: mste video problem ...
Posted: 31 Dec 2020 19:32
by exxos
Can only really test the chips in a different machine...
Though someone else has a odd video issue as well
https://www.exxosforum.co.uk/forum/viewt ... =23&t=3681
Re: mste video problem ...
Posted: 01 Jan 2021 14:44
by frank.lukas
exxos wrote: 31 Dec 2020 19:32
Can only really test the chips in a different machine...
... not practical because it is a 144pin SMD