My television is stuck in stand by mode.

SOURCE: tv tunrns on then goes to stand by flashes 4 times & repeats

turn tv on picture comes up 2to3 seconds later tv blacks out then stand by red light flashes 4 times in a row repeatedly..can not turn on or off when stand by light starts flashing but before tv blacks out you can turn tv on and off repeatedly and picture and sound work.You have to unplug power cord for 30 seconds after stand by light comes on to get tv to turn on.

SOURCE: Sony Vega KDF-E5OA10,picture will not come on, tv goes off.

There is a real good chance that the lamp fan is not turning. If you look with a flashlight in the vent on the left side looking at the rear of the set and have someone turn on the unit, see if it spins. if it doesnt, the protect circuit in the tv will not let the set turn on. Replacing the fan will cure the proplem if it is not turning.
Hope this helps,
Skyassoc

SOURCE: TV won't turn on or off. Stuck in stand by mode

its a power problem on the electronics board need an tec to open the tv and slve the problem

SOURCE: I have LG 50PC1DR plasma

Without testing I wouldn't suggest the Power supply is not defective: 1st, the control module is working because you gave it an ON command, 2nd the SMPS has received the the start up. The secondary voltages for the Y sustain and Z sustain modules are shutting down, probably due to a shorted IPM on either of the two modules mentioned. This problem is one you should contact your nearest svc center for a complete diagnosis. If I can be of any other assistance please e-mail me.

SOURCE: Power to TV, cant power on, red light flashing

The repetitive blinking light is a trouble code which is used to determine which series of boards may need to be replaced. How many times does the red light blink?