Lcd troubleshooting

LCD TV has no picture. sound works fine but no picture.
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More about troubleshooting
  1. Probably the backlight. Try shining a torch at the screen while it's running and see if any image visible. Backlight problem is either power supply or fluorescent tubes/circuitry.

    Of course, start by checking that no-one has selected an impossible combination of contrast and brightness. Access the on-screen display controls and select reset to defaults.
  2. Thanks,
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