My screen turns red and than the tv turns itself off. It does that every time I try to turn it on.

Hi! and Welcome to Fixya!

Blinking red lights on the tv are error codes that explains hardware issues on the tv.

However, if after turning ON the tv and you will see the Sony logo on the screen before the picture goes off and then flashes red lights for a number of times, this could mean that tv can still be recovered. Try the option below to isolate possible issue with settings that cause your tv to shut off. Disconnect first all external devices from the tv

1. Turn ON tv first and wait until it flashes the red lights > press and hold down the UP Arrow button ( use remote control ) > while holding down the UP Arrow button, press the POWER button on the tv > tv turns off, wait until it turns on by itself > release the UP Arrow button when tv turns on

Note: reset is successful when you see a welcome screen on the tv and ask you to select your Language. This is the Initial Setup, just follow the on-screen instruction

If that solution did not resolve the issue then a service may be recquired.

Let me know if this helps!

if you take the cover off, then take a look at the capacitors.
check if any have bump ..

Check this out....
http://www.fixya.com/support/t21733332-toshiba_46l5200u_turns_off_after_red

I turn on the tv and nothing comes on the screen. The tv set turns itself off and it blinks red 3 times fast and then 6 times slow....

Basically, the TV is trying to power up the screen. If it fail to do so, the TV will automatically turn itself off to protect other part from being damaged inside. The problem is going to be the Backlight Inverter Board. It's the circuit board that supplies power to the screen. You can usually find a replacement board at a good price at Shopjimmy.com

Symptom shows its time to replace Lamp.
How old is this TV?

Check your CRT boards on the end of the tubes for burn spots, and burnt components, check the resistors to make sure they are not shorted, burnt, and they read the correct resistance. Check the diodes to make sure they conduct in one direction only and are not shorted or open.

or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

you red crt is shorting out.tap the neck of the red crt lightly to try to remove the short.if no go also inspect the neck board.

Red c.r.t is faulty ,needs replacement.