My sony bravia 40 inch tv, almost half the screen is black with vertical bright pink, yellow, green stripes running through it, and almost a shatter effect of white lines in the corner. we have not damaged the tv, and there isn't a mark or chip on it. what's happened?

Hi,

please run a channel scan on your tv before checking for the issue again. If the issue persists, please remove all accessories from the tv before restarting it. If necessary, you can then power cycle the tv. Otherwise, you can move onto running a factory reset on your Sony tv.

Thank you.

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/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

the ribbon flat connection tapes that connect the led panel driver to the panel have prob delaminated
this cant be repaired easily and you would need to replace the panel

try looking through all the settings to find something about the screen brightness then change something, see if there is a difference then reset your tv/ turn it off then on again.
hope this helps :)

Plz send me register key

If you can open LCD Tv than refit all connector of Mother Board

after changing the lamp, I still had the same problem as you. I contacted sony and they offered me a brand new 40 inch bravia flat screen tv replacement...at no cost! If I chose a 46" or 55" there would be a charge between $325

sounds like a video or mains fault.

usualy this problem is cause by the lcd drive board.

If your set is a plasma, this can be one of two problems : either there is a loose connection (one of many, many connections) between the plasma screen and the driver board, or one of the transistor devices has blown. Try GENTLY applying pressure to the opposite ends of the TV to give it a subtle "twist" (please be careful!). Sometimes moving the set to a different location will produce the same effect. If it's still under warranty, call your dealer. Vertical stripes are a common fault with plasma technology I'm afraid! :-( Next time, go for LCD!