LC70lE660U

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  • charlie555
    Senior Member
    • Feb 2018
    • 76
    • usa

    #1

    LC70lE660U

    I have this TV, standby light comes on with no display. standby lights blinks slowly. please help
  • local
    New Member
    • Jul 2020
    • 4
    • Hungary

    #2
    Re: LC70lE660U

    Hello!

    First round below, then later if there will be more information
    The supply voltages should be checked first.The following is based on the service manual should be checked
    Since the pins are monitored, this can also provide a starting point


    Pins are monitor microcomputer pins unless otherwise
    specified.
    1 flashes once Inverter/Lamp system failure
    2 Power PWB failure Flashes twice
    Flash once Power supply error AC_DET error

    Flash twice Power supply error UR+13.5V error

    Flash 3 times Power supply error D+3.3V error

    Flash 5 times Power supply error Panel power supply error

    Flash 6 times Power supply error power supply error

    Flash 7 times Power supply error power supply
    error
    3 Main PWB failure Communication failure,

    Flashes 3 times

    Flashes once Initial communication error

    Flashes twice Start-up confirmation communication error

    Flashes 3 times Regular communication error

    Flashes 5 times Other communication error

    4. VerUP executing Green flashes continuously. OFF Sub microcomputer version upgrading

    VerUP succeeded POWER (Green) and SLEEP/OPC flash alternately. Sub microcomputer version upgrade succeeded

    VerUP failed Green flashes fast. OFF Version upgrade failed

    ROM data failure Green flashes fast. OFF Start-up after failing version upgrade
    5 Pins are monitor microcomputer pins unless otherwise
    specified.
    Inverter/Lamp failure, details is detected.
    Flashes fast once
    H: On
    L: Off

    Power supply failure, details is detected.
    Flashes fast twice
    H: On
    L: Off

    Main CPU Communication failure, details is detected.
    Flashes fast 3 times
    H: On
    L: Off

    Other failure
    Communication failure details is detected.
    Flashes fast 4 times
    H: On
    L: Off

    Comment

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