Sony kp51ws510 has a bowtie

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Calvin W
Sony kp51ws510 has a bowtie

Hello All,

I have control over the red and blue when manually adjusting the convergence, but the corners of the screen are pulled up and the text shows greater separation away from the center giving a green tinted bowtie like effect, could the convergence IC's be good ? if so what else can I check?

Also I get 4 blinks from the stand-by led, the manual say's to check =/- 15v on D board, vertical deflection stop.

I checked the voltage to the D board from the CN8004 block using GND from the connector as REF,

I get 16.3v for the 15v circuit and -17.3v for the -15v circuit, so if voltage is present is it the transformer on board G T6001 (PIT) that is bad are could it be the regulation of this output which is off.

My question is what do i check next if i have voltage supplied to the D board but it is not the correct voltage?    

                                                       Thank's Calvin W.

 

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