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[DarkMatter]

The most common parts that fail from supplying a 110V console with 240V are the main fuse and main filter capacitor/s. On the odd occasion, the varistor/s.
You really need to remove the PSU from the X-Box and visually inspect to see if any components have cracked or burned. You also need to have a multimeter handy to measure some components.
Please let us know what you find.
Regards,
DarkMatter

[prplehz]

How on earth did you plug it into 220?  220 plugs are huge in comparison to a normal 110. Did you plug a european plug into an american xbox in Europe or something? I would go with thte power supply area first. I would just replace the entire power supply first. And if you are lucky your Motherboard will be fine. If not then you may as well buy another Xbox and use that one for parts.

[DarkMatter]

Going by your picture and what you've pointed at, the mains fuse and varistor are toast. The other componet is a mains interference suppression capacitor and wouldn't need to be replaced, its rated at 275V AC, so don't worry. See your modified pic below:



If you've had some experience in using a soldering iron, then you can try my varistor repair tutorial on another Forum:
http://jansforums.jc...wtopic.php?t=75
Also, a further down the same page there's a tute on replacing the original mains fuse with an easier altenative.
But if you've never soldered a thing in your life, your best off using prplehz's recommendation of replacing the PSU altogether.
Don't worry about the motherboard, it should be ok. It would be extremely rare for it to be damaged due to mains overvoltage of an extra 130 volts.
Please let us know how you get on.
Regards,
DarkMatter

[DarkMatter]

QUOTE

The board is product of Delta but I don't know how to determine it is which version of these following:
* 110 volt Delta V1.0~V1.1 PSU's (2 required) use varistors: 7D151K
* 110 volt Delta V1.2~V1.5 PSU's (1 required) use varistor: 10D241K
* 110 volt Delta V1.6a~V1.6b PSU's (1 required) use varistor: 14D241K

Ok, I'm fairly confident you have the: * 110 volt Delta V1.6a~V1.6b PSU's (1 required) use varistor: 14D241K.
You definately don't have the first one, since you only have one main filter capacitor on your's. And the second one's part number is different in only by the size of varistor i.e. 10D against 14D. The 14D is physically larger than the 10D, but they have identical voltage ratings.

QUOTE

And I don't know do I need to replace the Xbox cord ?

No, you won't need to replace the power cord. So don't worry there.
Just follow my guide step-by-step and you should be able to get your PSU back on track in no time. If you have any other queries or worries, just post them here.
Please let us know how you get on.
Regards,
DarkMatter

[DarkMatter]

QUOTE

27KD10

Are you sure that there isn't an extra number on the end???
I have a strong feeling your getting the wrong part. You need to find the specifications on that varistor, as I was unable to find any specs what-so-ever on the number above.
If you don't get the correct type, it could blow as soon as you power up your PSU or it won't provide any protection at all.
Please find out the ratings on that varistor before you buy one.

QUOTE

I also buy 3AG for the fuse and buy one 3A and one 5A cause I don't know which is suitable with the current in the xbox.

Have a look at the picture below, it shows the location of the fuse rating.
Also, make sure the fuse is a slow blow type and NOT fast blow. Otherwise it will go open circuit as soon as you power up the X-Box.

QUOTE

tend to buy a 220V-to-110V changer but, again, I don't know how many watt (Power P) and how many ampere (Current I) is suit ? They have 50W and 100W type but I am afraid I need the bigger one ?

A 300W step-down transformer would be about right.
Please let us know the varistor specs before buying any.
Regards,
DarkMatter

[DarkMatter]

QUOTE

the varisistor is 271KD10

The varistor is correct, so you can go ahead and get one.

QUOTE

And on the board : T4A 250V.

The 4 Amp fuse is the correct one. The 5 Amp one is a tad too high.
When buying the 4 Amp fuse, just ask for a: "3AG, 4 Amp slow blow fuse" and you should be ok.
The "T" signifies "Time Delay".
Hope the above will sort everything out.
Please keep us posted.
Regards,
DarkMatter

[DarkMatter]

QUOTE

At last, let me give many thanks to Forum xbox-scene, a great forum for Xbox players. Special thanks for great help of DarkMatter, your instructions are so valuable. And thank all !

Your most welcome.  
Regards,
DarkMatter