I was using the ppm42s3 for my xbox 360 and all of a sudden it went completely blank and now the tv wont turn on

you have not said what tv it is and it can be the hdmi cable if it has been damaged. or the grafic chip in the xbox check the xbox on another tv

Your Xbox Rims In Xbox ARE NOT WORKING.

try using a xbox 360 HDMI lead, you can buy one here:
http://www.play.com/Games/Xbox360/4-/12361467/Official-Xbox-360-HDMI-AV-Cable/Product.html?_%24ja=tsid:11518'cat:12361467'prd:12361467

how to formating (sd) memory card n-gage QD????

it might be your tv or your game. try updating your xbox. go to xbox.com/update. that might work.

most likley a cable issue if you are using hdmi make sure its fully homed in same with the others but have you checked the display settings on your xbox? otherwise borrow another cable just to find out

it might bea problem with your actual video cord that plugs into the tv.... umm my xbox has a lot of issues too but ive never had this. id suggest you let it say off for a while and try somebody elses cords that connect the xbox to the tv to see if its an issue with your xbox or if its with your cords. ill also suggest you call microsoft and they can troubleshoot...

please rate my solution :) thanks

Since your sound works, you know the xbox is booting properly.  Check two things: 1) try another television to make sure it's not the tv.  2) try another cable(from a friend?) to see if the cable is bad.
**Also, if the video settings were saved on an unsupported setting, it could cause the screen to not show video.  If you try these 2 things and you think someone might have saved bad settings, I recall a button combination you can use to reset certain things, and I try to help if it comes to that.

Over heating wont turn on
http://forums.xbox-scene.com/index.php?showtopic=599216
http://forums.xbox-scene.com/index.php?showtopic=606431
http://copronymous.com/wp-content/uploads/2007/05/fix-for-the-3rlod.pdf

use the towell trick! Wrap the 360 in 2 towells turn on and leave running for 15 minutes. It gets very hot but after the 15 minutes turn off the console and power it back on again and it should work. Dont know if this is a permanent fix but my 360 hasnt broken again so far. Dont ask me how but it works, google it if you like. It also cures the 3 red lights problem.