http://knol.google.com/k/how-to-repair-damaged-flexible-flat-cable-from-lcd-displays

So it seems you can fix those pesky LCD flex cables by hot bar bonding; too bad the equipment to do it costs more than the LCD is worth.
I have a much easier way: rip out the existing damaged cable, clean the solder pads with VERY fine sandpaper and rubbing alcohol, then solder a row of 30awg wirewrap wire to one side, and then solder them to the other side. Voila.
KermMartian wrote:
I have a much easier way: rip out the existing damaged cable, clean the solder pads with VERY fine sandpaper and rubbing alcohol, then solder a row of 30awg wirewrap wire to one side, and then solder them to the other side. Voila.


Good luck soldering directly to an LCD panel.
Ultimate Dev'r wrote:
KermMartian wrote:
I have a much easier way: rip out the existing damaged cable, clean the solder pads with VERY fine sandpaper and rubbing alcohol, then solder a row of 30awg wirewrap wire to one side, and then solder them to the other side. Voila.


Good luck soldering directly to an LCD panel.
And this is why I should read a post more carefully before I reply to it. I was talking about PCB-to-PCB ribbon cables, like the one that connects the TI-83+'s mainboard to the LCD daughterboard.
KermMartian wrote:
Ultimate Dev'r wrote:
KermMartian wrote:
I have a much easier way: rip out the existing damaged cable, clean the solder pads with VERY fine sandpaper and rubbing alcohol, then solder a row of 30awg wirewrap wire to one side, and then solder them to the other side. Voila.


Good luck soldering directly to an LCD panel.
And this is why I should read a post more carefully before I reply to it. I was talking about PCB-to-PCB ribbon cables, like the one that connects the TI-83+'s mainboard to the LCD daughterboard.


But this is clearly not about that Razz
Yup, and now I see. I must say, I've never seen one of these hot bar machines in my life, and I've been in more than one EE laboratory. They must be a fairly specialty device.
KermMartian wrote:
Yup, and now I see. I must say, I've never seen one of these hot bar machines in my life, and I've been in more than one EE laboratory. They must be a fairly specialty device.


I think it has something to do with the fact that the machine costs $13.5K, whereas a broken LCD is cheaper to replace than the hot bar bonding machine's shipping costs Laughing
I remember seeing sites that claimed you could repair them using a regular soldering iron and some coat hanger wire, though that was for slightly less fiddly pager displays.
  
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