panasonic TC-55cx420u back light flashes

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  • nwcs
    Badcaps Veteran
    • Dec 2015
    • 311
    • usa
    #1

    panasonic TC-55cx420u back light flashes

    I am pretty sure this will be another back light failure but I thought I would run it past the forum to see if you agree. TV turns on, one side of the back lights flash and the other side does not. LED1+ and LED2+ will both flash 13v then drop to 0v

    cn203
    bk/n 5v
    adj 3v

    cn202 both 24v are correct

    cn201 all voltages are as marked

    +12v
    +12v
    G
    G
    G
    +5v
    +5v
    +5vsb
    ps/on 4v
    +5v
    +5v
    G
    G

    I am pretty sure that the reason the led1+ and led2+ flash for a couple of seconds is it sees a short and shuts down. I am not sure why it is only reading 13v. Again any insight would be appreciated
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