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19" polariod TLA-01511c loses backlight

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    #1

    19" polariod TLA-01511c loses backlight

    been over this one a little, this ones actually my first victim form way back when. At the time it was torn down and checked for bad caps. Thats as far as i went. WHen powered on, it works ok for 10-20 secs then the backlight goes out. Seems to have a hint of pink in the whites for some reason also.

    have any ideas? going to check the inverters now..
    Tags: None
    #2
    Re: 19" polariod TLA-01511c loses backlight

    Originally posted by cadillacman View Post
    Seems to have a hint of pink in the whites for some reason also.
    Pink is an indication that the ccfls are dying.
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      #3
      Re: 19" polariod TLA-01511c loses backlight

      Shows how much i know heh.. not much.

      That would make sense. Ive checked over everything now, all fuses and "0 ohm resistors", checked the primary and secondary of the little transformer for the ccfl, followed the taced back to the trsnsistors that kick it on and they check ok as well ( no shorts)

      i guess im going to take this lcd apart and have a look. Gotta learn sometime. I actually have a 19" dell lcd thats cracked, but thee backlights still work in that... hmmmmmm...

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        #4
        Re: 19" polariod TLA-01511c loses backlight

        Well we have a conformed ccfl failure.

        Bummer is i canot find my parts lcd to rob the ccfls out of. Oh well.
        This thing is toasty man!!!

        SO today ive learned that when ccfls start to go bad, the screen gets pink. Ive also learned how NOT to take a lcd panel apart, howeve ri do still have a good lcd itself. I learned to be very careful with the diffusers, you would almost need to setup a hospital clean room when you mess with those.

        But this tv was free from way back when, mabye someday ill find a compatible lcd assy to jam in there or itll be good for parts to fix other tvs with. Cool man! The more i tinker with these the more i absoultely love it!

        tried to upload pics again and it failed, going to do some homework and figure out why...

        lets try this one more time
        Attached Files
        Last edited by cadillacman; 03-14-2011, 08:01 PM.

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          #5
          Re: 19" polariod TLA-01511c loses backlight

          ***EDIT EDIT**** turns out this is a 15"? looked bigger then that. Mabye becausde of the "landscape" design.. oh well figured i better put it out there.

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            #6
            Re: 19" polariod TLA-01511c loses backlight

            Originally posted by cadillacman View Post
            tried to upload pics again and it failed, going to do some homework and figure out why...
            When using manage attachments, scroll down to see the max resolution and MB size for each type of attachment.

            I never had a problem uploading pics here using manage attachments.
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              #7
              Re: 19" polariod TLA-01511c loses backlight

              yeah my issue was that i have a high end camera, so the pics filesize is super huge. WOrks out ok, i just have to crop the hell out of them to bring the filesize down. Once again the issue is the rookie not the website lol.

              I love this place. I love tinkering with these tvs. I just wish i could make a living working on these units.

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                #8
                Re: 19" polariod TLA-01511c loses backlight

                Originally posted by cadillacman View Post
                yeah my issue was that i have a high end camera, so the pics filesize is super huge.
                I know on my camera, I can choose resolution, fine, superfine, etc so I don't have to crop too much.
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                  #9
                  Re: 19" polariod TLA-01511c loses backlight

                  One of the easiest programs to use is Vueprint. It's free (note the serial number when you download it).

                  It allows you to crop, and allows resizing a picture. So take the picture with your hi-resolution camera, crop off the extra, resize so the largest dimension is 2000 pixels (by default it preserves the aspect ratio), and save.

                  PlainBill
                  For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

                  Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

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                    #10
                    Re: 19" polariod TLA-01511c loses backlight

                    If you're using Windows 7, Vista or 64-bit XP, you might need to turn off Data Execution Protection (DEP) for VuePrint.
                    uhm.. that's a no-go right there..

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