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tatatoothy
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Last Activity: 11-03-2010, 03:07 PM
Joined: 10-23-2010
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  • tatatoothy
    replied to Acer AL2216w backlight issue
    in Troubleshooting Computer Displays
    Re: Acer AL2216w backlight issue

    hey bill

    after taking a look at the underside there was no obvious connection to the windings as they were covered in plastic on that side.

    i've been looking for broken models but after taking a look at this board i realized that the same model number used different power inverter boards.

    might be time to sell it on ebay for parts.

    thank you for all of your help. i greatly appreciate it
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  • tatatoothy
    replied to Acer AL2216w backlight issue
    in Troubleshooting Computer Displays
    Re: Acer AL2216w backlight issue

    hey bill. thanks for your hard work so far. really appreciate it.

    any suggestion on what to do next?

    i've googled and googled and haven't found this darfon transformer anywhere. darfons site doesn't work.
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  • tatatoothy
    replied to Acer AL2216w backlight issue
    in Troubleshooting Computer Displays
    Re: Acer AL2216w backlight issue

    80gl20t-23-dn
    darfon 6501f 726041z

    i did some googling for these numbers and came up with nothing
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  • tatatoothy
    replied to Acer AL2216w backlight issue
    in Troubleshooting Computer Displays
    Re: Acer AL2216w backlight issue



    just rechecked. it still reads as open. used the continuity test to verify the leg on top is indeed connected to the solder joint and the connector and all tests well....
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  • tatatoothy
    replied to Acer AL2216w backlight issue
    in Troubleshooting Computer Displays
    Re: Acer AL2216w backlight issue


    there are 4 sockets (s1-s4) and 4 cfl connectors marked as upper and lower blue and pink

    s1: Upper Blue + Upper Pink show nothing
    s2: All CFLs flash when connected here.
    s3: all cfls connected do not flash and the acer logo is not visible however the "no input" box is VERY FAINT but possible to see.
    s4: same as s3

    there is an audible, intermittent very high pitched (above 8Khz) buzzy sound when a cfl is connected to s3 and s4.




    A-A,B-B,C-C,d-D:...
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  • tatatoothy
    replied to Acer AL2216w backlight issue
    in Troubleshooting Computer Displays
    Re: Acer AL2216w backlight issue

    Here are macro pics of the board both top and bottom.

    Thanks for everyone's help so far...
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  • tatatoothy
    started a topic Acer AL2216w backlight issue
    in Troubleshooting Computer Displays

    Acer AL2216w backlight issue

    hey

    my 22" acer flatscreen has just pooped out on me.

    The backlight powers on for about 1-2 seconds then powers off. It comes on when you turn it on to see the acer logo. then again for about a second whilst it shows the desktop then it's off. i can see that the desktop is still functional and displayed in the background.

    I replaced all of the 470uf caps on the power board. no other changes have been made. its still doing the same thing. for the record: none of the caps were bulging or looked bad. i figured this was the easiest possible fix and...
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  • tatatoothy
    replied to New Members - please post your introductions here
    in Announcements & Related News
    Re: New Members - please post your introductions here

    hey all

    new member here

    i'm here because i'm a cheap skate and i love fixing stuff.

    on mondays i often take a garbage/recycling walk in the nice neighborhood about a block away in my high-population density city. i've found a couple of computers, some nice framed art work, really nice place settings from crate and barrel and my most recent find: a busted 19" lcd flat screen. i replaced the caps in the power section and booya! i've now got a second monitor for $10 in caps and about 2...
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