No picture and tv turns itself off

Tv probally needed a new tv projection lamp.This tv has not been change it projection lamp like 1 1/2 or 2 years already?Tv been on and used it like 4 or 5 hours everyday?Yes,than the tv flashing or solid on green LED light is on have a word "LAMP" written on it tv bazel frame?Yes,tv 100% require a new tv projection lamp replacement.

When did you replace lamp in tv last time?
Symptom shows its time of lamp replacement in tv, lamp replacement procedure is easy and would be written in user manual.
Please buy Sony original lamp for good picture in tv.
Thanks.

Hi,
When lamp in tv is near to end of working hours life but yet not dead/ broken it starts problem like what happening in your tv. Replace lamp in tv to solve it.
It is time to put new lamp in tv to get it back in business.
Please buy Sony original lamp for good picture in tv.
Thanks.

Replace lamp in tv as this symptom shows existing lamp is near to end of its working hours life span and need to be replaced.
Lamp replacement procedure is easy and would be written in user manual.
Buy Sony original lamp for good picture in tv.
Thanks.

sounds like a bad color wheel

change the lamp is is too weak to operate properly.

the lamp is about to die...

Three blinking LEDs mean lamp may be defective replace the lamp.

Just replace its Lamp and procedure is written in user manual of KDS-R50XBR1
F93087600 XL-5100 LAMP BLOCK
Lamp is available in Sony Accessories and price is $250
Always buy Sony original lamp for good picture in TV and avoid aftermarket / cheap lamps that can cause damage of TV circuits.
Click Sony Support to download Instruction Manual copy, if you want it.

you may check your lamp first. other than that i would say a faulty mains board.