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D61W20 61 in. Rear Projection Television: turn on tv ligt blinks 3 times and goes out....

Turn on tv ligt blinks 3 times and goes out.

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  • atelier mj
    atelier mj May 11, 2010

    Having some problem with jumper film sockets. mostly if equip with the white ones.

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Projection TV`s have integrated protection circuits
built into the circuit design, these circuits turn the
power off automatically when a fault has bin detected this
is in order to prevent a more costly repair, these circuits monitor
power supply , vertical and horizontal deflection
over voltage, or x ray, and also faults with convergence circuits.
Diagnosing these faults require test equipment and a good knowledge of
electronic repair techniques, and also a repair manual.

Posted on Apr 28, 2010

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1 Answer

Red light blinks 3 times


I found this with a google search. I will put the link here to give credit to the site. This is not my own info. Full credit goes to the site owner.
  • 3 times, Diagnosis: +B overvoltage (OVP). Possible causes: IC501 is faulty (G board), IC5002 is faulty (G board). Symptoms of the problem: TV has entered standby mode.
http://www.somelifeblog.com/2007/08/sony-tv-led-blinking-codes-what-does-it.html

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The set does use a lamp for a light source and average life is 2 years or 2000 hours---many lamps before they actually fail get to be darker.

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3 flashes means the lamp door is not on correctly or the lamp door switch is broken.

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Power problem


Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.

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