Okay if the screen lights up that means you have hv to the y-sustain board the problem would be either the a/v board no signal is been sent to the main logic board thats control the vertical and horizontal image to the y and z board so you may have to replace the a/v board
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Okay if the screen lights up that means you have hv to the y-sustain board the problem would be either the a/v board no signal is been sent to the main logic board thats control the vertical and horizontal image to the y and z board so you may have to replace the a/v board