Tv will not turn on have power going to the unit

Common problem with the main board. Only happens after losing main power, not just turning the TV off.
I found that blowing hot air with a heat gun down the vents above the DVD player (don't melt the plastic housing) will warm the main board up enough to get the TV powered up again.
You'll be good to go until the next power outage then back to the heat gun.
Also the spec sheet indicates max humidity at 80% so keep the TV in a space with lower humidity.
The Toshiba 37LX96 is a quality TV, not a throw away if you can keep it running.
Schmidty

CAPS (capacitors) on the power supply board are going bad. TV putting itself into fault protection by turning itself off..... If you can give the model number I can better help you.....

usually means a dead power board/inverter board. need to swap out to confirm.

The only way to reset on a lock code on a Mitsubishi TV is going to be reseting the unit. I believe this unit is reset by holding down the power button for 10 seconds while the unit is turned on. As for the remote being the only way to turn the TV on, does the button on the front of the unit stick, or seem 'smushy' when you press it?

HI:
This is a plasma unit and philips plasma's are nortorious for bad power supplys, your problem may very well be the power suppy in the television, it is possible you blew a low B+ fuse on the power supply. There is also a issue with the Y-sustain board failing in this model, If you open the back and looking at the unit from the rear the y board is on the left side of the unit and the PS is in the center. disconnect the Y-sustain power plug from the power supply and turn on the unit if the unit stays on with no red light then the y board is bad. it does the same then replace the Power Supply.

its a power supply fault the mains caps are not getting enough power to fire the unit up. the clicking noise are the two relays opening and then when there is not enough power to stablize they open again lettting go of the short .. the unit needs to go into a repair shop

sorry

Blown power supply, usually, unit going into PROTECT. Don't keep trying! you'll only damage more components. Change power module or Professional repair..

there a problem on power side.. chage the ic and the resistor going to ic and check also the signal diode.

I had a similar problem where the TV would turn on then shutoff when bumped or over time. The clue was a "tick" sound when it shutoff. Unplugging and reconnecting the power cord go it going again for a few minutes anyway.

I took the unit apart and found the solder connection on the power supply unit was cracked where the main transformer attaches. The solder connection joins the PC board. I suspect the weight causes the joint to stress crack. This is easy to fix by removing the power supply and touching up the solder connections around the transformer. I'd check this first as it is very difficult to locate power supplies and other parts.

this unit is dead ,possoble power supply problem. you must have warranty on this unit if its only 8 months old,if not contact place of purchase and ask wath is the life expectancy of their products and your tv set it start them thinking about repairing or replacing.