Topic: Xbox 360 Motherboard Component List (Read 478 times)

veen2011 · « **Reply #120 on:** September 11, 2011, 11:39:00 AM »

Please, can anyone tell me what is the capacitor value of C4N41 and C4N32?
And what is the resistor value of R4N1? Falcon Motherboard.

RDC · « **Reply #121 on:** September 11, 2011, 12:29:00 PM »

@ wholelife - C8U9 isn't on either the Xenon or Falcon boards, what 360 are you working on? A picture of the damaged area would be most helpful in identifying the component. Also, the 0022 error code is more like the 0102, so I'd doubt the Cap is causing your problems, but without knowing which one it is exactly it's hard to tell.

@ veen2011 - R4N1 is 100 ohm, then C4N32 and C4N41 are both DeCoupling Capacitors, and it should be fine with them missing. You'll have to get ones from another Falcon board if you want the exact replacement values.

This post has been edited by RDC: Sep 11 2011, 07:30 PM

veen2011 · « **Reply #122 on:** September 12, 2011, 10:14:00 AM »

Ok, i got it working again, but now when turn the xbox on, the fan goes real fast.
Could this be because Q1G3 is missing, it's a temp. sensor so....

BTW. i left out C4N32 and C4N41. i didn't replace them.

This post has been edited by veen2011: Sep 12 2011, 05:16 PM

RDC · « **Reply #123 on:** September 12, 2011, 10:28:00 AM »

Q1G3 is a Transistor, but it was in there for a reason. So it's either that, the heatsinks aren't seated properly or some other issue.

veen2011 · « **Reply #124 on:** September 12, 2011, 11:03:00 AM »

what i ment was, it's part of the board temperature circuit, as far as i know, so my first guess would be that.
I'll keep you posted when i've replaced the transistor.

This post has been edited by veen2011: Sep 12 2011, 06:06 PM

veen2011 · « **Reply #125 on:** September 12, 2011, 02:50:00 PM »

Because i don't have the transistor at the moment, i decided to partly put back the xbox together.
Everything exept the casing.
Then when i powered on the xbox, everything is normal.
Probably were the heatsinks.

wholelife · « **Reply #126 on:** September 18, 2011, 09:54:00 AM »

RDC,

Mine is a XBOX360 Elite model, not sure what board it is.

Here is a picture of the missing/damaged cap.

(IMG:https://lh5.googleusercontent.com/-lDeoTnjDipE/TnYFODJW6ZI/AAAAAAAAACE/QX5EWY2uAZ4/s912/MissingCap.jpg)

RDC · « **Reply #127 on:** September 18, 2011, 07:08:00 PM »

QUOTE(wholelife @ Sep 18 2011, 09:54 AM)

RDC,

Mine is a XBOX360 Elite model, not sure what board it is.

Here is a picture of the missing/damaged cap.

It's really hard to tell from that pic, but it looks like the pad on the left side has been ripped off. In some cases this is no big deal, and again I can't really tell from that quality of pic and I don't have the same version of board here to check, but it looks like that's what might be causing the issue as the pad was 'in the middle' of a trace run. So you might have an open trace run there that is causing the issue, not the missing Cap. If you can get a much better pic I can probably make it out, or have a good look at it thru a magnifying glass and see if it looks like there is a trace connected to the left and bottom of where that pad should be. Again, I can't make it out from that pic clearly, but from the way it looks there it's something I'd check out.

This post has been edited by RDC: Sep 24 2011, 05:26 PM

wholelife · « **Reply #128 on:** September 19, 2011, 08:25:00 AM »

Thanks for the advice. Here is a clearer (but upside down) image of the damaged area. You should be able to see the threads more clearly.

(IMG:https://lh6.googleusercontent.com/-cHtP8Ou2mcQ/Tnc_Scop4oI/AAAAAAAAACU/G9V1J8dr2PM/s912/MissingCapEdited.jpg)

There doesn't seem to be any other damaged thread.

After checking with the multimeter, I found that the two nodes (see red line connecting both) are at the same potential. Not sure what it suggests though.

Edit: Just checked the datasheet for the ADP3190 chip. Seems like the part that was chipped off is set to GND potential since it had the same potential as the ADP3190 GND output.

Does this mean that its a decoupling cap? I'm really at a lost now.

This post has been edited by wholelife: Sep 19 2011, 03:42 PM

RDC · « **Reply #129 on:** September 19, 2011, 09:48:00 AM »

If one side of the Capacitor goes to Ground then it's most likely a DeCoupling Cap.

From that pic it doesn't look like any trace runs are messed up.

C8U9 isn't connected to the ADP3190, it's connected to pin 2 of the IR3638S there, and since it's the Vp line for that IC then it's most likely just a DeCoupling Cap.

sharpy_uk · « **Reply #130 on:** September 24, 2011, 09:06:00 AM »

hi i have a component missing from a xenon board,a large silver piece about 2 inches behind video out,think it says txc on it,not sure what it is,any info on this cheers

RDC · « **Reply #131 on:** September 24, 2011, 10:25:00 AM »

It's a 27MHZ Xtal. Without it a lot of things aren't going to work.

hlmasterchief93 · « **Reply #132 on:** August 14, 2012, 11:58:00 AM »

i got a dead one yesterday
turn it on, green center light, no ring light, no video
check the board, missing the red cap, the blue cap is soldered to c8c1 (falcon)

what is the value of the red cap and
should blue cap be back to his position ?

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Author Topic: Xbox 360 Motherboard Component List (Read 478 times)