Mario Mejia Posted on Nov 02, 2012

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Black screen and no sound - Toshiba 37AV502U 37 in. LCD HDTV

1 Answer

Computer Repairing

Toshiba Master 14,641 Answers
Posted on Nov 03, 2012

Computer Repairing

Toshiba Master

Joined: Aug 04, 2009

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The problem is most likely the the screws are loose on the inverter boards. The screws must be tighted as they provide the ground to the inverter bds. The inverter boards are undet the shields on both sides of the unit after pulling the back cover. One way to make sure that you are losing back lights and not video is when your picture goes black, shine a flash light on the screen at an angle and will see the video is still there. This mean the back lights are out. If you do not see the video it may be another problem

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