TCL 65s425 sound/video working, no backlight

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  • knoxrebel
    Senior Member
    • Oct 2009
    • 168
    #1

    TCL 65s425 sound/video working, no backlight

    Tv shows no issues other than no backlight. Picture was visible with flashlight and menu navigation possible with audible responses.

    Polyester film Capacitor c620 27nf (on power supply board had visible brown discoloration, but is not shorted. Replaced with suitable spare and now working properly. (Apparently this is a known issue with this series.)

    Backlights tested independently with tester and registered ~140vs on each.

    40-L171w4-pwa1g
    Mmkp82 1kv 273 J

    2 Photos
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