Question about Sony KP-61V90 61" Rear Projection Television

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Sony projection tv model kp-61v90

My tv will come on briefly and then shut off immediately and the red light just keep blinking

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Re: sony projection tv model kp-61v90

Possible power supply or short on the b+ run,check for shorted horiz. o/p tranistor.

Posted on Sep 08, 2007

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II get sound for about 15 sec. but no picture and then shuts off

kp57ws50_57_in_rear_projection_hd_228277.jpg 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

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Older model---it should when you try to turn it on have the red light blink for several seconds (set is checking things inside) and if comes on and shuts off that light should blink a specific sequence of blinks----5 blinks and repeat it endlessly---

I have a stupid question: when it first failed did you hear a small pop or smell a faint odor of something burning?

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SONY KP-61V90 tv will not power on, red light in front,

Its 2 times blink error code that shows +B volt supply (+135 volts) is shorted, most probably horizontal output transistor is shorted, replace it.
If you are good in soldering parts in circuit board then take out horizontal transistor, check it, found shorted then replace it with same number.

Horizontal output Transistor Q502 number is 2SD2578 and available in Part Store for $10
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Dec 19, 2008 | Sony KP-61V90 61" Rear Projection...

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How many times does the light blink in between pauses? Also is your model the KP-61HS10 ? Please respond to this same post and I should be able to help you.

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If the TV will not turn on and the red light blinks on the front of the set, it means that the microprocessor has detected a problem in the set and shut the set down. It then blinks the red light a certain number of times, and the number of blinks is the code for why the set has shut off. How many times does the red light blink before repeating?

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