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Thread: fix lcd ribbon

  1. #1
    Maximum Bitrate neon_eddy's Avatar
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    Nov 2004
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    Ham Lake, MN
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    598

    fix lcd ribbon

    I i started another psot today about my cheap LCD I bought from BB, http://www.mp3car.com/vbulletin/show...359#post652359

    so I decided to try and flip in manually, (I am flipping it so I cna use any input signal and it will look normal

    and to do this I needed to extend the rubbon that controls the LCD.. so I cut it, and now I'm having issues soldering new wires in.. mainly I'm having problems removing the protective coating that the wires are sandwiched in. I tried using a small lighter/tourch to burn it off.. and the wire isn't too brittle. but the coating doesn't burn off, what should I do?..

    I feel like I jsut hosed my LCD.. it was perfectly good and I jsut can't leave well enough alone :-).. looks like my wife is right again.

    can anyone offer tips and or help.
    Shawn



    Check out my web company Minneapolis Web Designer | MODx Web Design - Himmelberger Design


  2. #2
    Fusion Brain Creator
    Join Date
    Mar 2005
    Posts
    2,221
    ohhhh mannn, way wrong move

    it's hard enough to keep those things working uncut

    how many wires is it

  3. #3
    Maximum Bitrate neon_eddy's Avatar
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    Nov 2004
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    Ham Lake, MN
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    598
    32 in less than 1 inch :-)..

    I thoguht about it for a while and figured, I can do this.. I got 4 done.. and then they start to crack as I keep working on the others. and taking off the coating is ahrd too..
    Shawn



    Check out my web company Minneapolis Web Designer | MODx Web Design - Himmelberger Design


  4. #4
    Newbie
    Join Date
    Nov 2004
    Posts
    18
    Ouch, tried that once with a faulty PDA display!! If the wires are still contained in a single ribbon then use a very sharp scalpel/knife to scrape the coating back to bare wire. This takes a while cos you need to keep the blade parallel with the ribbon with even pressure - should get the coating off evenly across all wires. Then use a wide solder bit and run fresh solder across all the wires in a single stroke, okay may be more than one . Stick the ribbon to a surface to keep it steady and now for the fun of extending - use another ribbon and repeat the process then line it all up and stick the extension down. With a bit of luck and both sets of wire freshly tinned, use just the heat of the iron to get a join. Search the web for a company called Chipquik and grab a sample of their low heat solder, it can be melted with hot air (not a standard hair-dryer though...I don't think) and by passing the iron above the wire with no actual contact. Good luck.

    BTW when done, fix the joins with a coating of quick set two part adhesive, essentially potting the joint, preventing it from flexing and breaking.

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