I have a 53 in. sony projection tv,. bowed picture tubes?!?

This TV has had a long life. Your picture is looking more yellow these days because the Blue picture tube is wearing out. Not saying the Green and Red tub are much better, but Blue tube is a major player in the picture brightness and white balance (the color of white which the TV reproduces). The cost involved wouldn't be justified. You should enjoy the balance of the TVs life; when it's time comes... have the new TV delivered and ask them recycle this one. Best wishes.

The blue CRT could be defective on your TV or the CRT assembly.
How many times the LED blinks before shutting the TV down?

This is a good one. Your TV "looks" at the feedback coming from each picture tube in your TV. When it doesn't see what it expects, it kicks out a 5 flash. Most commonly, the correct signals never got to the picture tube(s) and that's why the feedback was abnormal. Which brings us to the most common solution: C boards, they attach directly to the bottom of the picture tubes. Figuring out which one has a problem... that's another matter. Due to the age of the TV, parts costs are rising. Each C board (3 in the TV) runs about $100 so guess work can be expensive. I hope this was helpful.

For CRT projection TV's, this indicates that the Green picture tube is burned (warn out). The less green that strikes the screen, the more redish the image will look. You will need to find an old school TV repair shop that knows how to replace picture tubes.
In the case of a DLP style TV, the color wheel needs replacing.

I think its Sony rear projection TV that has 3 picture tubes.
If that's true then Blue Tube seems bad and requires to be replaced.
Let me know exact model of TV to find out blue tube price info.

It sounds like your Green CRT ( picture tube ) is shorted. That's the one in the middle. Sony had issues with there tubes in those years. Sorry for the bad news. Even if you could locate the tube, it will be a matter of time before the Red or Blue does the same.

The blue CRT (picture tube is bad) These TVs were a real problem. Picture tubes began failing in these sets within 2 years of use. Sony warranted some of these TVs for a short while but has since abandoned their customers so they could build defective LCD projectors which are now the subject of a class action lawsuit.

Kick it to the curb and start lookin' for a new one.

michtech

Good Day, hazzletp;
You may have a bad comb filter or one of the CRT's (picture tubes)(cathod ray tube), are going bad. Call an Authorized Service Center and have them come to your home and give you a written estimate b4 repair. Cost AVG $550.00, if CRT is bad go shopping.
Good Luck, big IRISH.

You have a bad blue picture tube. If you replace it the red and green will be weak and probably go sooner than you think. Everytime I had to replace a tube in a sony projo tv i had to replace all 3 picture tubes at the same time. It's very expensive if you don't have any type of warranty coverage.

C-Dog

In a Sony TV, the most common cause of the picture flashing on and off is a weak picture tube. When the set was new, it took about 5 to 10 seconds for the picture to appear once the set was turned on. This is normal. If you have been noticing that it has been taking longer and longer to first appear, this is the clear signal that one of the picture tubes is getting tired. There is a circuit called IK Blanking that monitors each picture tube and adjusts them as the tubes age, so you always see a good picture. When one of the tubes has weakened so much that it cannot produce enough brightness in the picture, the circuit shuts the picture off completely. I guess Sony does not want you to see a tired, dull picture. When the tube is right on the edge of being too weak to keep the picture on, the picture will flash on and off, and it will also take much longer beofre it first turns on. The good news is that the Sony picture tubes always respond beautifully to reactivation (CRT Recharge) but you will need a qualified tech familiar with Sony projection sets to handle that repair for you.