Acer AL2216W Repair Question

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  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA
    #61
    Re: Acer AL2216W Repair Question

    When you work on the HOT side (PRIMARY), the cricuits ground for the hot side will be the neagtive leg of the main DC filter cap. If you do read 38vdc with the correct Ground point, then there is something wrong with that pin8 kick start pin of the TEA1532. You may want to trace out that connection to see if it is hooked at the same as shown in the app notes.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

      Comment

      • trains58554
        Senior Member
        • Apr 2012
        • 55
        • USA
        #62
        Re: Acer AL2216W Repair Question

        Checking it the way you said I now get 151 volts DC. Which to me sounds about right as I saw that the power goes though a resistor.

          Comment

          • trains58554
            Senior Member
            • Apr 2012
            • 55
            • USA
            #63
            Re: Acer AL2216W Repair Question

            Ok I got the monitor working again. We had a bad trace from the resistor to the cap it was the leg that went to pin 1 of the SMPS ic. Now the only other problem I see but this more then likely a problem with the display as there are some pixels stuck on in two rows one straight up and down the middle and one horizontal about an inch up.

            Thank you all for helping me.

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA
                #64
                Re: Acer AL2216W Repair Question

                Great, simply bad connections, no parts needed.
                Never stop learning
                Basic LCD TV and Monitor troubleshooting guides.
                http://www.badcaps.net/forum/showthr...956#post305956

                Voltage Regulator (LDO) testing:
                http://www.badcaps.net/forum/showthr...999#post300999

                Inverter testing using old CFL:
                http://www.badcaps.net/forum/showthr...er+testing+cfl

                Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                http://s807.photobucket.com/user/budm/library/

                TV Factory reset codes listing:
                http://www.badcaps.net/forum/showthread.php?t=24809

                  Comment

                  • trains58554
                    Senior Member
                    • Apr 2012
                    • 55
                    • USA
                    #65
                    Re: Acer AL2216W Repair Question

                    Yep just a bad connection no additional parts where needed.

                    Thanks

                      Comment

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