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Atari 5200 - 4 port - power modification. WARNING: BIG !

User is offline ApolloBoy Icon
Posted Thu Oct 2, 2008 8:39 PM

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I did this mod last weekend and it was a success, but after completing it I realized that I left out the 0.1 uF cap. Presumably this acts as a filter of sorts? I mainly ask this because I also did an S-video mod (the one shown in the 5200 FAQ) and there's a gray bar that rolls across the picture.

EDIT: I was able to solder in the cap today and it made a difference. Never mind.

This post has been edited by ApolloBoy: Sat Oct 4, 2008 7:59 PM

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User is offline jetblue Icon
Posted Sun Jun 14, 2009 11:15 PM


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hi,im about to do this mod and read mitch's thread but i dont understand the wiring on the jack and where the ceramic cap goes. Can someone go into more detail?

The center pin is negative? does that ceramic cap solder onto a wire or the jack itself then a wire? the picture is covered by electrical tape in that area.
thanks
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User is offline carmel_andrews Icon
Posted Mon Jun 15, 2009 6:49 AM


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I didn't have time to read the whole thread (all posts) but am i to understand that atari used exactly everything of the 2 port 5200 in the 4 port 5200 but without modifying the 4 port 5200 to account for additional components etc

if that is so, could'nt that be dangerous, i.e power shortages and outages because the power regulation is only rated for a 2 port 5200, which over time and constant use could irrevicably ruin and damage the 4 port system (i.e the psu itself and also the motherboard components and the part of the motherboard itself that works the power regulation and power input)

Please correct me if i am wrong
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User is offline mellis Icon
Posted Mon Jun 15, 2009 8:22 AM


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View Postcarmel_andrews, on Mon Jun 15, 2009 7:49 AM, said:

I didn't have time to read the whole thread (all posts) but am i to understand that atari used exactly everything of the 2 port 5200 in the 4 port 5200 but without modifying the 4 port 5200 to account for additional components etc

if that is so, could'nt that be dangerous, i.e power shortages and outages because the power regulation is only rated for a 2 port 5200, which over time and constant use could irrevicably ruin and damage the 4 port system (i.e the psu itself and also the motherboard components and the part of the motherboard itself that works the power regulation and power input)

Please correct me if i am wrong


The four port model was the initial design, so no, it's not accurate to state "atari used exactly everything of the 2 port 5200 in the 4 port 5200 but without modifying the 4 port 5200 to account for additional components etc".

The 2 port model was a cost-reduced adaptation of the 4 port, not the other way around. It eliminated the fancy automatic switch box and two of the controller ports, and in doing so, the power adapter connected directly to the 5200 base unit instead of to the auto switch box. It really was not that dramatic of a change.
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User is offline remowilliams Icon
Posted Mon Jun 15, 2009 9:39 AM


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View Postcarmel_andrews, on Mon Jun 15, 2009 8:49 AM, said:

Please correct me reply if i am wrong correct

There, that should save everyone an immense amount of time going forward.
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User is offline jetblue Icon
Posted Thu Jun 18, 2009 10:49 PM


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Thanks guys for the info :)
Completed the mod today works fantastic. Heres a pic of the ceramic cap placement in case anyone has trouble:

Posted Image

ceramic cap soldered on each pin of the jack. Ceramic cap has no polarity. The center pin is + positive.









anyone needs a ceramic cap and diode i have a spare from the radioshaq 2 pack,throw me a pm and il drop it in the mail

This post has been edited by jetblue: Thu Jun 18, 2009 10:52 PM

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User is offline Joeyray Icon
Posted Thu Jun 25, 2009 1:45 PM


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I an amatuer when it comes to electronics and soldering. However, I managed to do this mod and thank fully it worked out great. Those old 4 port switch boxes were pain back in the day (and still are today).
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User is offline Waterborn Icon
Posted Mon Sep 14, 2009 10:06 PM


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I finally got around to modding my 4-port 5200 tonight and it works like a charm. Thanks to everyone who provided content for this thread and the original. It is information like this that makes AA such a tremendous resource.
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User is offline atariksi Icon
Posted Tue Sep 15, 2009 6:13 AM


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View Postjetblue, on Fri Jun 19, 2009 12:49 AM, said:

Thanks guys for the info :)
Completed the mod today works fantastic. Heres a pic of the ceramic cap placement in case anyone has trouble:

Posted Image

ceramic cap soldered on each pin of the jack. Ceramic cap has no polarity. The center pin is + positive.









anyone needs a ceramic cap and diode i have a spare from the radioshaq 2 pack,throw me a pm and il drop it in the mail


Original link to text instructions is not working.
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User is offline Mitch Icon
Posted Tue Sep 15, 2009 11:58 AM

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View Postatariksi, on Tue Sep 15, 2009 5:13 AM, said:

Original link to text instructions is not working.


It seems the forum upgrade killed the link. Try this one: http://www.atariage....wer-mod-success

Mitch
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User is offline atariksi Icon
Posted Thu Nov 19, 2009 7:14 AM


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View PostMitch, on Tue Sep 15, 2009 12:58 PM, said:

View Postatariksi, on Tue Sep 15, 2009 5:13 AM, said:

Original link to text instructions is not working.


It seems the forum upgrade killed the link. Try this one: http://www.atariage....wer-mod-success

Mitch


This is reply to request in another thread.
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