The fan dont turn on when i turn on the tv and the red light is flashing

Had that problem and replace the lamp twice, I finally replaced the optic block.
It is quite involved to replace, if not technical get professional help.

If you have a flashing red light, try this first: The flashing red light is, according to the Hitachi service manual, an indication of exactly one problem. It is that the fan (internal, blows air over the power supply heat sinks) has failed. In my case, it failed by continuing to spin (very confusing), but put out a signal (3V on the white wire of the fan harness) that it has failed (I had to look up the data sheet on the fan to figure this out). A new fan from Arrow $10 fixed the problem. If you suspect your fan, spinning or not, you can safely short the white to the black wire to see if your TV remains on after being turned on (solid red light), and then try turning your TV on (blue light) to see if it works.

Check ur tv fan,if ur cooling fan are runnig,before all these LED lights are flashing.If not that ur tv problems.All these LED lights are flashing the tv making alots of clinking noises too like it trying turn itself on?Yes,than the tv board that called the Ballast board it is dead too,must be replace also.This tv Ballast board only job are to help to ignite the tv projection lamp only and keeping it on and running.

Yeah, it is not lamp problem. Check fans in tv as one of fan is stopped for some reason and causing problem.

Is the light blinking constantly or is there a long pause then more blinking. If constant check the lamp door switch . Usually it is broken or jammed. If you jumper it and the set comes on that it. 4 blinks is bad fan.

THE FOUR BLINKING RED LIGHTS INDICATE A FAN PROBLEM. CHECK IN THE BACK AND MAKE SURE THE FANS ARE SPINNING ON POWER UP.THE PROBABLE CAUSE IS THE LARGE LAMP FAN LOCATED ON THE LOWER LEFT WHEN LOOKING AT THE BACK OF THE TV

Flashing red is a fan fail . It is probly blinking like 3 short and 1 long blink. If so then most likely your tv needs to have a new dmd fan installed.
Also once that tv detects a stopped fan it must be unpluugged from the wall outlet and plugged back in to get it to even try to turn on again. Sometimes fans will kinda work after a few trys or when the tv gets moved around.

If the lamp has been replaced I would think the Lamp ballast would be most likliest followed by the color wheel and then the Digital board. You can get any part needed for your model at www.tvrepairworld.com just leave them a email they respond quickly.

my sony red light flash.but it will not turn on just clicks

Try to replace the Main Power Supply board first.