Question about Televison & Video
Model kdl-405300 pixels on screen break up, more so when watching live sports
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Posted on Jan 02, 2017
SOURCE: Sony KDL-32ML130 lcd tv
Not really that tough. Sounds as though the backlight is shutting down, either from a power supply failure, or a failure of the backlight circuit itself. You can verify this by holding a flashlight to the screen in the area where the menu usually appears to see if it displayed on the LCD panel with no backlight. If you can faintly see the menu displayed, your backlight has shut down and the most likely cause is the backlight inverter board, followed by the power supply and the backlights themselves which are part of the LCD panel. If you found this information answered your questions, please be sure to rate it. Thanks!
Posted on Oct 25, 2008
SOURCE: Sony TV KDL-32L4000 Turns Pink
My Sony tech says it's most likely a bad cable box. Try a DVD and if the DVD is fine then it's for sure your cable box. Needs to be replaced by the cable company.
Posted on Aug 10, 2009
Problems relating to the automatic turn on and turn off of a set like this usually point to the main board being an issue. For this set, I believe Sony refers to that board as the "AU" board.
It's probably not the G/Power Supply board, especially if it turns itself on. Power supplies will turn a set off, but rarely--rarely--turn itself on.
If there's no kind of extended warranty involved here,
you could be looking at $500.00 for parts and labor to repair this kind of problem.
As always, try any software/firmware updates Sony might have available on their website prior to pursuing a repair visit.
Posted on Jan 22, 2010
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