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westinghouse DAC-19M005

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    #1

    westinghouse DAC-19M005

    How it going! My screen was having issue with flickering couple of days ago then on saturday all of an sudden I boot up my pc the bios screen pops up then i get a black screen the light is green so the pc is communicating with the monitor. I did all basic troubleshooting so I went researching the cause of the problem.

    I took apart my screen found both top 200uf was blown so i assumed it was just these to. I went to radio shack and bought two 200uf 35v ( i know I shouldn't use these just wanted to check if will temporarily fix my problem) but didn't work.

    I came across this site and I spent a few hours researching and reading up threads and posts. I tried to test the rectifier it reads 30-50 intermittently and check the big cap and is showing .2volts. I don't know it in doing it right. I'm using digital meter and is on 200 dvc. I'm posting pics as well please disregard the radio shack caps I desolder those already. I'm using 25watt solder I need a new tip is dirty n not soldering correctly. What type of solder is best to use n circuitry work just curious. I'm using a 60/80 I believe I'm at work just guessing.

    Any help is greatly appreciated I'm a dyi type if guy so I'm really doing want to buy a new monitor if I don't have too.

    Thx
    Last edited by mrcableguy; 08-06-2013, 08:14 AM. Reason: forgot the pics
    Tags: None
    #2
    Re: westinghouse DAC-19M005

    First, you need good soldering iron, 40 Watts or more. Only 0.2VDC (should be 160~170VDC) on the main dc filter cap sounds like the main fuse is blown. Not quite clear about your rectifier readings.
    Diagram attached. There are SMD fuses on the power supply/inverter board and the MOSFETs that need to be checked.
    There are many threads on this DAC board, just search for it in this forum.
    Attached Files
    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

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      #3
      Re: westinghouse DAC-19M005

      http://s540.photobucket.com/user/bla.../power%20suppy

      Im having trouble uploading pics straight through the site. Im using my phone so i upload it to photobucket n paste the link.

      Comment

        #4
        Re: westinghouse DAC-19M005

        Thx im going to get a 40 watt then. I appreciate the pdf.

        Comment

          #5
          Re: westinghouse DAC-19M005

          I have a 100 watt solder gun will that be too much to work with?

          Comment

            #6
            Re: westinghouse DAC-19M005

            Ok i found that f200 has 25v but f101 dont have any reading. next to f101 is c100 i tried to get a reading but shows nothing. in the vicinity it looks burnt i took some pics. also right below it i drop some solder on the tracer i try cleaning it up as best as i could. would it affect the circuit? Any input would be great.
            Attached Files

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