White screen,sound is operational and turns on and off

Sounds like T'Con board fault. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

A white screen on an iPod Touch is the sign of a generic error, meaning you won't get a specific error message. Usually when this happens the white screen won't change and the iPod is frozen on that screen. Apple Support outlines a specific series of steps to take to deal with this problem, from turning the iPod Touch off to completely reinstalling the operating system if necessary.

What the White Screen Means The white screen is a sign that a software error has occurred in the iPod Touch. Unless you received an error message first, it's usually something near the root level of the iPod's operating system that caused the iPod to cease functioning normally. Rather than shut off completely, it goes to this white screen to let you know there's been an error. Unfortunately you usually lose unsaved information when this occurs. b> Resetting b> Try turning the iPod Touch off, then on again. This is the simplest way to reset your iPod Touch. If it remains stuck on the white screen, force a reset by holding down the Sleep button (top right corner) for about 10 seconds. The screen will go dark, then the Apple logo will appear. If it turns off and doesn't turn on again, the battery may be too low. b> Restore b> If a manual reset doesn't work and the screen remains stuck on a white screen, you'll need to restore the iPod to reinstall its operating system. Plug your iPod, via its charger cable, into your computer. Open iTunes and click on your iPod, then the "Restore" button on the main screen. b> Problematic Apps b> If you consistently receive a white screen while using a particular app, the app may be faulty or installed incorrectly. Try re-syncing the app to your iPod Touch and see if that solves the problem. Otherwise, you may need to delete the app to avoid the white screen problem.
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Either your data flat wire is disconnected or your data board is defective.If you open the back panel(unplug the unit first)observe the flat wire if it is firmly hooked up to the connectors,if it is your Data board is defective,replace it.Some models have their video/data processor with the main board,if this is the case with you then you have to replace the main board too.White screen means your back lighting is operating well and the sound means the tuner and amplifier is fine too.So concentrate on the Data board and it is found in between the tuner and the LCD screen.

I would reinstall windows sounds like the update corrupted it.

When you say that you "..turned to system factory brand-new", did you do a factory restore?

It sounds like your Hard Disk is failing. Is your system under warrantee?

Turn your phone off, take out the battery for about 15 seconds, then put it back in and power up. Then see if your phone has any updates.

what video card and what monitor are you using????
what operating system???
what make of PC??
need more information.

Bad CRT board.

do you still have this tv? what happens if you hit the info button - does it bring up the banner at the bottom of the screen?

Hello, please contact your Philips Dealer ASAP. If you need more info please advice. Best regards, Arpi