Sony grand wega kf50we620

A1606034B is the part # for thar set

Lamps $99.00 Mats 1-800-628-1118

Go website like You tube type in ur tv model and bulb replacement,will have a tutor video how to do the replacement of the projection bulb.

You have a bad light engine call sony see if it is on their extended warranty list.

Your owner's manual for the television will contain a troubleshooting section that will describe the blinking codes for the various lights, and what they mean.
However, in your case, it probably means the light is burned out.
The bulb on my TV tends to burn out about every 16 months (I watch TV for many hours per day, so your experience may be different). If your TV is still under warranty, I would suggest you contact the store where it was purchased, or contact the manufacturer.

How many times does the red light blink ???

Download user manual of KF-50WE620 from Sony Support and go to page-16 to 19 of user manual, it has clear illustrated details how to access and change the bulb (Lamp) in TV.

I replied your question and can see answer HERE

yes

The accurate number of blinks is very importent as 4 blinks is a different failure code from 5 blinks. Please provide the exact amount of blinks and I can give you a better idea.