Question about LG 42LC2D 42 in. LCD HDTV

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Screen displays no signal after a power failure; can hear sound, no picture

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It's either the backlight lamp or backlight light inverter is busted due to the power failure.Here's how to determine which is which:

  1. Grab a flashlight.
  2. Turn on the TV.
  3. Shine the flashlight onto the screen.
  4. If you cannot see any display even a faint one, the backlight inverter is dead, else the backlight lamps are busted.
  5. Replace which ever is the culprit.

Posted on Sep 25, 2009

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