We try very hard to make it a friendly place, I'm glad you're finding it so.mgi wrote: Tue Jun 06, 2023 3:56 pm This forum is the best - I have no question about it. In few minutes kind people offer to help!
Do you think which chip could still be used?
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Atari 65XE Bad GTIA chip
- rubber_jonnie
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Re: Atari 65XE Bad GTIA chip
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: Atari 65XE Bad GTIA chip
I'll need to solder a couple of legs onto it and test it but I suspect so yes.mgi wrote: Tue Jun 06, 2023 3:56 pm This forum is the best - I have no question about it. In few minutes kind people offer to help!
Do you think which chip could still be used?
Failing that I likely have a spare 65XE board that works.
If it ain't broke, test it to Destruction.
Re: Atari 65XE Bad GTIA chip
That would be great big thanks! I will be buying rounds on 8th of October - no question about it!PhilC wrote: Tue Jun 06, 2023 4:00 pmI'll need to solder a couple of legs onto it and test it but I suspect so yes.mgi wrote: Tue Jun 06, 2023 3:56 pm This forum is the best - I have no question about it. In few minutes kind people offer to help!
Do you think which chip could still be used?
Failing that I likely have a spare 65XE board that works.
Re: Atari 65XE Bad GTIA chip
@mgi I had to repair one leg and it boots now.
If it ain't broke, test it to Destruction.
Re: Atari 65XE Bad GTIA chip
Looks great! If someone wanted ever to test in Sysinfo is the option to check for 'Bad GTIA'.
This is how it should look like:
This is how it looks on mine:
This is how it should look like:
This is how it looks on mine:
- rubber_jonnie
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- Posts: 15139
- Joined: Thu Aug 17, 2017 7:40 pm
- Location: Essex
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Re: Atari 65XE Bad GTIA chip
Eeew, rubbish!
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: Atari 65XE Bad GTIA chip
It gets worse 
I was testing on this demo https://demozoo.org/productions/62247/? ... W8iffIYtxw
It should be like this:
And on my CRT looks like this:
I was testing on this demo https://demozoo.org/productions/62247/? ... W8iffIYtxw
It should be like this:
And on my CRT looks like this:
Re: Atari 65XE Bad GTIA chip
I know this GTIA boots, not sure about anything other than that
If it ain't broke, test it to Destruction.
