LG 60PS60 red light, relay clicks, wont turn on. 5vsb present but other v+ are low

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  • triplefour
    Badcaps Legend
    • May 2014
    • 1747
    • USA
    #1

    LG 60PS60 red light, relay clicks, wont turn on. 5vsb present but other v+ are low

    got a nice 60" plasma im trying to fix but i barely know how plasma work.
    it responds to remote and button board requests to power on by a relay click (maybe 2 really fast ones on and then off?) and then after a few seconds a red light comes on the front of the screen (like a standby led but its not on when you first plug in the tv, so i think its more like an error led?)
    i took off the b ack to have a look and i have 5vsb on the psu but it seems to fail when trying to power the other boards. even without them connected, the v+ it should be giving to the zsus and ysus boards is much too low. like .3v and then it falls to like .03 after a while.
    i checked all the fuses i could find but beyond that im not sure where to begin.
    any hints?
    Attached Files
    Last edited by triplefour; 06-04-2016, 11:06 PM.
    Don't fear the repair...
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