Xbrx850c sony 4k tv blinking red light 6 times and then shows screens like a cartoon... with spinning circles then goes back to blinking red lights 6 times .. I Was Told By a Tech panel screen

SOURCE: 60" Sony KDF-E60A20 - Red Light Blinks 6 times

The problem you have is a failed thermal sensor. Depending on how tech savvy you are you can replace it.They have changed the way the thermal sensor looks but it isnt too bad too put in. Any repair shop should also be able to do this for you.

Part number is 1-910-006-44 Themal Fuse Sony Part.

SOURCE: Philips 42 in. Plasma shut down

Thank god we purchases the ADVANCED extended warrenty. This tv has been nothing but problems.

Fuzzy picture, picture shutting off after 20 sec coming back on and now blog of colors shut off never to come on again. 7 blinking red lights on the front. Waiting for the repair man again.......

SOURCE: 42 in SONY LCD flat screen has red light blinking and won't turn on

Does the red light blink in a discernible pattern? How many times does it flash or blink?

SOURCE: Sony KF-50WE610 flahing red light (6 blinks)

Jeff, did you look at the Sony web site? They had a problem with 9 different TV models that were from 2003 and 2004, KF-42WE610, KF-50WE610, KF-60WE610 and 6 other models.
This is what it states: It haas come to our attention that a limited number of Grand WEGA rear projection TV's may exhibit warping to the lamp access door. In rare cases, some additional components may also become damaged as a result. and so on........
You probably have some components melted on the inside around the lamp. I have a 42 inch and I just replaced the lamp at Christmas and the door was melted shut. This is the second lamp that I have replaced, the door was starting to melt the first time. They never sent me anything about this problem, and as of today I am still trying to work something out with them. The repair shop who has it told me that it can't be repaired. The parts that are melted are not in stock and they don't make them anymore. They are supposed to get back with me and make me some kind of offer.
They will only fix this problem through March 31, 2009.

SOURCE: Sony KF-50WE610 Tv won't turn on, red light blinks 6 times

3 times means Lamp and 6 means you have lost a voltage. You may have a thermal fuse blown.
This set has a common trouble with overheating caused by the drum fan located on top of the lamp housing clogged up with dust. When the lamp is getting old it runs hotter and that combined with the fan being clogged the thermal fuse blows. You must replace the lamp and thermal fuse. You must also clean out or replace the lamp fan. This drum type fan should be cleaned out every year or two depending on the environment.