jasontrg wrote:

When turning on the TV it instantly turns off. I am wondering if
anyone can give me some pointers. Also this is the third TV in the
last 5 years that has done this, other brans were sharp, RCA and now
this sony. The TV does sit in an entertainment center. Thanks in
advance.


Although the syptoms - instantly shutting off - are the same, each TV
probably had completely different components failed, causing shutdown.
Usually it's caused by a protect circuit - the TV turns on, detects
somethin wrong, then immediately turns off to try to prevent further
damage until it can be repaired.

If it's in an entertainment center you need to make sure it gets good
ventilation anywhere there are vent holes in the outer case.

Sounds like you need a technician to diagnose and repair the set. If
you keep turning it on hoping it will stay on, you will eventually cause
more components to burn out, increasing the repair cost.