On start-up, the fan runs quietly, but after a few moments, perhaps 30 seconds, the speed (and noise) increases, and then...

No guides for fixing an xbox 360 power brick? Not worth fixing or not possible to fix?

Could be the laser, could be the motor that rotats the disk. If you can hear the disk spin up to speed it is probably the laser. Both are fairly easy jobs, the guides on here are a big help.

HDD usually stands for Hard Disk Drive. My wii doesn't have one, only the DVD drive. But I also have a wii that doesn't give sound or video, and wondered how hard it is to replace the relevant audio-video encoder chip, which is available on-line.

It could be worth checking the TV settings in the wii menu.

Good guide. Followed it and finally succeeded.

Some points

Step 5 - the camera need not be disturbed, though the screws holding the plate do need to be removed.There was a rubber surround to the camera hole which came loose and had to be put back before the grey plate went back.

Step 6 - the smaller of the display cables (lower left in the picture) is held by a clamp and the screw holding it, visible under the white wire, needs to be undone before the cable is popped off..

The replacement screen assembly I bought did not include the plastic surround. I had to use a spudger to split the 'main' plastic rim (with buttons) from the screen, and a sharp thin- bladed knife to separate the 'inner' rim from the glass part, to which it was firmly glued. The new screen came with adhesive strips, so I carefully cleaned the adhesive remnants off the inner rim, aligned it very carefully and let it stick together. The main rim then clicked back onto this, and I had the screen/rim assembly as shown in step 9.

It works, but seriously overdoes the dismantling required . I just did this on a wifi 3g version (serial number started with B00A) and it took less than 30 minutes.

Steps 2,3 and 4 .You don't need to remove the silver screws holding the battery, the 3g unit or the inner ones on the black bit at lower right. None of them hold the board to the case, but ALL the grey screws do.

Step 5 You only need to undo the ribbon cable to the screen (marked orange) - the others don't need disturbing and are hard to put back correctly.

Steps 6 & 7 - Skip these.

Step 8 - the whole board lifts out - start at the top and be gentle - in case you've missed a screw or two.

Rebuilding - best to test before putting all the screws back, and refit the back starting at the switch end rather than the top or sides.

" Replacing a defective optical drive with a replacement optical drive does not work. The replacement will have a different DVD drive key, which the game console will not accept."

Not entirely accurate, that statement.

Having fixed a PS3 blu-ray drive by following the excellent guide on here, tried the same technique.

I had a bad drive in my xbox, and I replaced it with a new drive (of the same type). I took the daughter-board from the faulty drive and transplanted it to the good drive. It involved stripping down both drives, disconnecting 2 ribbon cables and unsoldering about 8 wires, transplanting the daughter-board - and resoldering the wires. Then reassembling. It worked for me, anyway.

Yes, there is - and It worked for me!

Yellow Light of Death Repair

I have a heat gun with lo (300 C) and hi (600 C) settings. I've fixed 2 PS3 YLOD (excellent IFIXIT guide for that, by the way) and have just tried to fix an XBOX using this guide. Within 2 minutes of starting , using the hi setting and keeping the gun moving , one of the dark areas around the small chips started to bubble. I haven't tested the result, yet, but suspect the worst....

I think the guide should be more informative and precise about the heat requirement.

Next time I'm going to follow the settings (lo) and timings the PS3 guide suggests.

Though the internals are quite different - especially the way the heatsink (fan unit) joins to the mobo, no card reader, no separate control board - following this guide as closely as I could seems to have fixed a YLOD on a CECHG03 PS3 - at least it has fired up and is now updating.

Many thanks.