LG 50PQ10R Plasma Powersupply

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  • freeman3020
    Member
    • Jun 2019
    • 30
    • Palmo
    #1

    LG 50PQ10R Plasma Powersupply

    Hi all

    i have problem with power supply that not get 17V or va vs

    firstly my power supply not get any output power i can get 4.5 volt for Microcontroller on the secondary side of AUX unit , i don't know how this microcontroller work so i pulled-up some pins to switch main power relay and trigger mosfet gate to get output , i can get 4.5 on 5v pin and 12 volt output , and switched relay to supply main power circuit , ic L6599D work for less than second then switch off , no short on any diode or capacitor

    why microcontroller not switched circuit or relay , is it on protection mode

    any suggestion ??
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