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Sony bravia kdl40s2010u

Red light flashing 4 times was working fine last night cannot turn tv on

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  • psmart Jan 13, 2009

    I have the same issue. I very much appreciate everyone's help, but so far I have received 6 different answers. They include:
    1. Replace BU Mount PCB
    2. Replace ballast transformer
    3. some failed IC or capacitor on the main board
    4. bad inverter
    5. replace pwr supply board
    6. replace LCD drive board

    I checked with my meter to see if there were any obvious failed components on the power supply board. I did find Capacitor C6000 to be shorted. Can I simply try to replace this Cap as a start, or is this thinking way too simplistic?

    Thanks!
    Phil


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  • 320 Answers

A 4 flash indicates you have a backlight problem. Either the backlight inverter boards have failed or you have a backlight that has failed in the LCD panel. You will need a technician to check the set to determine which is the problem.

Posted on Nov 08, 2008

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