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if the lamp indicator is blinking and won't turn on which means you will need to replace the lamp.if you don't have an idea how to replace just leave it to the tv technician to fix your tv.
First of all thank you for posting your question here at Fixya. Please confirm if the brand and model number above is correct. Blinking of the the LED (yellow and blue) at the front panel indicating that the lamp door cover is not seated properly. This cover will engaged to a micro switch giving the signal to the processor, once it is in open position, the unit will not power up and will experienced that kind of blinking error code. Go back to the lamp door cover and ensure that it is properly seat-in. 3D, 2D, red/green/blue ghost on the picture and letters means that the convergence circuitry gone bad. Symptoms is not connected to the light engine. The faulty parts is the convergence chips(IC). This chips are mounted on the large aluminum heat sink and starts with STKXXXX-XX (X means number). The most common STK chips used on Projection TV's is the STK392-110. You have to replaced them both on the board to resolve the issue(red ghosting). It is necessary also to check the resistance value of the resistors around its circuitry using the multimeter. For more info how to repair a convergence problem, watch the video below.
Blue led light lit solid and yellow led light flashes is an initial attempt of the set to re-light the lamp.Red led flashes and yellow led light solid means that the lamp won't light up that's why it only has sound without the picture. Since you've replaced the lamp twice and still the symptoms persist, I suspected that the fault came from the ballast board and not on the lamp itself. If the ballast board gone to malfunction, there's no high voltage will produce to light up the lamp and will sensed by the processor and trigger the error code (Flashes/solid led light with color code).
To verify whether the ballast board is faulty or not, check if the lamp will lit by looking through the lamp door louvers at the rear of the cabinet upon turning on the set. Please let me know what you will find to assist you further.
3 blinks indicates lamp door is not on or has not been reinstalled properly. This also could mean the lamp door switch has failed itself. Try removing the lamp door and putting back on, if that doesnt correct the problem then I recommend having the switch replaced.
I'm sorry for the difficulties you're experiencing in locating the lamp door of the TV. The Lamp door is located on the right side of the TV. I'm providing a photo with Lamp door is marked. Please review the below picture.
Thanks for understanding. Please let me know if you require further assistance.
Does the light blink? If it is blinking a 3 code, the IC's need to be replaced. Those three lamps as you called them are not lamps, they are the three picture tubes.
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