BLUE POWER LIGHT IS ON BUT NO PICTURE OR SOUND when i on my tv the screen is black, only one line appear on screen.sound is ok.its sanyo 27" tube tv.
It needs repair.
If the line is vertical, then something is damaged on its horizontal circuit section on the mainboard.
If the line is horizontal, the vertical circuit section is damaged.
have it repaired to a qualified service center or person!
avoid switching it to avoid further damage on other parts!
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