[Ti] Re: tibook 400 stripes on the screen

[Dan K]

AFAIK, your lines are probably caused by the failure of a few connections 
at the edge of the LCD itself. Allegedly these faults can be repaired, 
but the folks who do it charge quite a bit.

The LCD has a builtin circuit board (PCB) which takes the signal from the 
computer and interprets it to drive the actual rows and columns of the 
LCD array. The PCB is connected to the LCD itself with flat ribbon 
cables, The connections at the PCB are soldered, but the end which 
attaches to the LCD edges use an adhesive similar to hot melt glue. Those 
connections can fail after awhile, age?, flexing?, overheating? dunno why 
really. The proper repair, from what I understand, involves replacing the 
adhesive to reattach the ribbon cables to the LCD's edge.

I've never tried it, but in theory one could use some sort of heat source 
to remelt the original adhesive and thus reattach the broken connection. 
You'd have to heat the edge, then press into place the ribbons and hold 
and secure them evenly, then remove the heat to allow the adhesive to 
reset. Easy-peasy, right? :-P

Unfortunately the general cure is to replace the entire LCD. With used 
pre-DVI LCDs selling for $100-$200, that's the route I'd go. Of course, 
you could always try the repair, if it doesn't work you're only out a 
already-failed LCD.

dan k


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