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Help with Unknown overscan Mod please

General discussions or ideas about hardware.
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PhilC
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Help with Unknown overscan Mod please

Post by PhilC »

Hi all,

Can anyone help me identify this overscan mod and maybe point me in the right direction to any needed software etc.

When switched on it seems to change resolution but everything on my NEC screen is garbage. Not sure if it's my monitor not being compatible or what.
20190517_211130.jpg
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20190517_211219.jpg
20190517_211219.jpg (304.04 KiB) Viewed 2693 times
If it ain't broke, test it to Destruction.
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exxos
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Re: Help with Unknown overscan Mod please

Post by exxos »

Maybe these will give some clues ?

http://atari4ever.free.fr/#video
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PhilC
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Re: Help with Unknown overscan Mod please

Post by PhilC »

exxos wrote: Fri May 17, 2019 9:23 pm Maybe these will give some clues ?

http://atari4ever.free.fr/#video
Thanks. Actually, will have to have a look at that ISA ET4000 adaptor files too :D
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PhilC
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Re: Help with Unknown overscan Mod please

Post by PhilC »

Looks to be a mono mode overscan but my monitor doesn't like the resolution.
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