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hef9800
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hef9800
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February 11th, 2019
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February 14th, 2019
05:29 PM
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February 13th, 2019,
10:32 PM
hef9800
replied to a thread
Atari 400 has power led but no signal to tv
in
Atari
So I feel like a dummy, I had the chip in the Z503 socket backwards since I had it out to resolder the piggy back chip on it and didn't noticed it...
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5 replies | 164 view(s)
February 13th, 2019,
03:26 PM
hef9800
replied to a thread
Atari 400 has power led but no signal to tv
in
Atari
I have no noise and the tv isn't receiving any signal. I also checked the chips and reseated them and found no corrosion either. I tested the...
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5 replies | 164 view(s)
February 12th, 2019,
09:22 PM
hef9800
replied to a thread
Atari 400 has power led but no signal to tv
in
Atari
It's the non-official mod by Claus Buchholz with the hand written schematics. I shall do that and check back.
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5 replies | 164 view(s)
February 11th, 2019,
04:03 PM
hef9800
started a thread
Atari 400 has power led but no signal to tv
in
Atari
Hey everyone. I have an Atari 400 that I modded to have 48k of ram. It worked great on my test bench, played some games on it with the top plastic...
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5 replies | 164 view(s)
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