does anyone have a schemtaic for what circuit each cap is in on the original xbox?

[bulkchart32]

i have a 1.1v and i am having issues with faint wavy lines on the screen that i am trying to make perfect so it will be my main xbox.. also have some 1.0v's that are doing it but to a lesser degree. i really don't want to do a full board recap, especially don't want to have to replace those smds, so i want to find which specific caps that filter the video signal. i have already replaced several caps and messed up one of them that caused a dead short(has been repaired). so i really don't want to just do all the caps. plus, those 1.1v boards have a lot of them. i'd really like to just focus on the problem caps. and yes, i have given a visual inspection and replace the 5 in front of the processors with poly caps.

[LaPCon_IT]

All schematics for the original Xbox:

https://consolemods.org/wiki/Xbox:Schematics

[SheldonAshcraft]

I've been mapping out the original Xbox cap circuits too—finding a full schematic is tough. If anyone has high-res scans or diagrams,that could really help the community troubleshoot more accurately.

[stj]

look around the video encoder near the connector
there are some smd caps there.

[Unspun01]

@bulkchart32: Are you using the same video cable for all of your XBOXs?

I had a Monster brand cable years ago that had bad internal grounding/shielding and it caused wavy interference lines on all XBOXs it was connected to. There was no issue with any of my XBOX consoles. It was the bad cable. The cable was fixed by soldering the internal braided shield (rather than the loose crimp that was installed from manufacturer).

I've owned or serviced over 100 original XBOX consoles over the years and in my experience I have never had to repair a video output circuit for this issue due to capacitors. Bad video cable shielding, missing cable shielding, no cable shielding (really cheap no-name cable), damaged cable shielding strands (at the connector where it flexes the most), corrosion on cable pins, bad or missing grounds, broken solder connections, or running a video cable near the AC power cable (where it can pick up interference) are all more likely.

I'm not saying bad caps in video output circuit are not a possibility, but I would try a different cable before re-capping anything.

[bulkchart32]

@bulkchart32: Are you using the same video cable for all of your XBOXs?

I had a Monster brand cable years ago that had bad internal grounding/shielding and it caused wavy interference lines on all XBOXs it was connected to. There was no issue with any of my XBOX consoles. It was the bad cable. The cable was fixed by soldering the internal braided shield (rather than the loose crimp that was installed from manufacturer).

I've owned or serviced over 100 original XBOX consoles over the years and in my experience I have never had to repair a video output circuit for this issue due to capacitors. Bad video cable shielding, missing cable shielding, no cable shielding (really cheap no-name cable), damaged cable shielding strands (at the connector where it flexes the most), corrosion on cable pins, bad or missing grounds, broken solder connections, or running a video cable near the AC power cable (where it can pick up interference) are all more likely.

I'm not saying bad caps in video output circuit are not a possibility, but I would try a different cable before re-capping anything.

mainly happens with that xedusa+ connector. looks great on my 1.6v xbox but i am having issues with the 1.0 and 1.1v xboxs.

[Unspun01]

I've never heard of that xedusa+ connector but found info at this link:

https://www.beharbros.com/product-page/xedusa-plus

That page specifically states to check the VRM capacitors near the CPU:

QUOTE:
"As these consoles are older than 20 years, their VRM and Power Supply related capacitors are aged and leaked most of the time. So they should be replaced with the equivalent ones urgently in order to function without any issues. If you experience glitches, noises or diagonal lines on the video, it's a consequence of this problem. "

Depending on the motherboard version these are 1500uF/16V or 3300uF/6.3V.

As I mentioned before, I've not seen bad caps near video encoder IC, and would focus on the VRM caps near CPU. That being said, I haven't used the xedusa+ cable, but it could have crimped ground/shield cable instead of soldered ground/shield so you might want to pop open the connector and look under the hood. Should be easy to do with a couple of bobby-pins or thin screwdrivers. I've done many and they come apart without damaging them.

[bulkchart32]

I've never heard of that xedusa+ connector but found info at this link:

https://www.beharbros.com/product-page/xedusa-plus

That page specifically states to check the VRM capacitors near the CPU:

QUOTE:
"As these consoles are older than 20 years, their VRM and Power Supply related capacitors are aged and leaked most of the time. So they should be replaced with the equivalent ones urgently in order to function without any issues. If you experience glitches, noises or diagonal lines on the video, it's a consequence of this problem. "

Depending on the motherboard version these are 1500uF/16V or 3300uF/6.3V.

As I mentioned before, I've not seen bad caps near video encoder IC, and would focus on the VRM caps near CPU. That being said, I haven't used the xedusa+ cable, but it could have crimped ground/shield cable instead of soldered ground/shield so you might want to pop open the connector and look under the hood. Should be easy to do with a couple of bobby-pins or thin screwdrivers. I've done many and they come apart without damaging them.

i changed the vrm caps out and put polymer caps in their place. can u show me a video of how to pop open that connector?

[bulkchart32]

i also don't have the problem at all with my xbox2hdmi adapter. and my 1.6v xbox works fine with xedusa.