I have a sony kp-57ws520 tv dont come on

Problem with Sony KP-57WS520 57 in. Rear Projection

This model is really prone to one problem in particular--screen even briefly comes up bright red, green or blue and set shuts down.

15 seconds from turn on front power light should blink as set checks several things internally---if something wrong it does not let picture show.

Usually after shut down or failure power light will blink a sequence of blinks but not always depending on problem.

Did you see the screen at all go red, green, or blue before?

the more you tell me the better I can help

check lamp first

Hi,
5 times blinks shows incorrect white balance (AKB) error. TV needs Screen Volts (G2) adjustment.
Take off lower front panel, find Focus Block that has 6 control knobs, adjust Screen volts of each CRT (red-green-blue) and problem will be solved.
Be Careful while working in TV.
Let me know if you have further question.
Thanks.

need to know the number of blinks as thats an error code. it should blink a series of blinks pause briefly then repeat the sequence.

the blinking is an error code telling you that tv needs a new power supply.. have your tv serviced...

Diodes are blown on the G board ( POWER BD) replace the G board.

I think I can help you whit this, This is a common problem with the "G" Board (power supply) it will need two diodes one of them is a royal PITA to solder/handle and about 2mm long surface mounted(very small).

Hello,
Please mention how many times standby light blinks on your KP-57WS520
There would be bit long pause between blinks so count the blinks and let me know to help you.

The 9 blinks on your TV means:
+/- 19V line is shorted
IC708 could be defective
PS701 or PS702 is opened.

To do this repair you will need to have basic electronics knowledge that includes hand soldering, use of a DVM and be very careful when working around high voltage.