Panasonic rear projection TV 47 in PT 47WX49

Is the sleep timer on ? Could be that simple

Hi,
Three times red light blinking indicates problem of convergence output chips are bad, tv has 2 chips that need to be replaced.
Let me know if you are handy with electronics stuff repair and can replace/ solder parts in circuit board to provide you technical info OR local tv repairman will do this job for you.
Thanks.

Thats an error code. How many times does the light blink?

it needs to be repair its the main power board inside the tv

You need to replace the convergence ICs they are both STK392-110 you can get replacement ICs at the following link and they provide free installation instructions.
http://servicemanuals.vstore.ca/

im sorry to say but you need to have a IC replaced on the main board to fix this

How many times is the led blinking? and can you verify your model number

how many times does the LED blink ? Thats a error code.

would require some troubleshooting, common problems would be convergence amp ic and high volt transformer transistors

If you are really brave tackle this TV FAQ.
http://repairfaq.ece.drexel.edu/sam/tvfaq.htm

i have the same model and this happened to my set 1 day after yours! i am sending it out for repair on monday so i can let u know what was done and what it cost. i found this: from repairfaq.org:Power-on tick-tick-tick or click-click-click but no other action A variety of power supply or startup problems can result in this or similar behavior. Possibilities include: Lack of startup horizontal drive - see the section: Startup problems - nothing happens, click, or tick-tick-tick sound. The main regulator is cycling on overvoltage due to lack of load. Excessive load or faulty power supply cycling on its overcurrent protection circuit. High voltage shutdown, or some other system detecting an out of regulation condition. However, in this case, there should be some indication that the deflection and HV is attempting to come up - momentary whine, static on the screen, etc. A dried up main filter capacitor or other filter capacitor in the low voltage power supply that is producing an out-of-regulation condition until it warms up. A bad filter capacitor on the output of a series regulator may result in excessive voltage and subsequent shutdown. A problem with the microcontroller, relay or its driver, or standby power supply. One possible test would be to vary the line voltage and observe the set's behavior. It may work fine at one extreme (usually low) or the other. This might give clues as to what is wrong.