On October 15, 2007 at 13:02, miazza said...
AT the end I did a very inaccurate job and all the 4 pads
were in short with the conductive glue.
Trying to lift the flex I have definitively damaged the
flex.
The only soultin I have now is to dismount the screen
and solder 4 wires.
Do someone of you know a procedure about how to dismount
the touchscreen ?
Thanks in advance
Ciao
miazza
Miazza I fixed several 3000s using conductive silver epoxi. Re-glue the flex will not work because you cant control the glue under the flex and a short circuit is created, you have to change the ribon for 4 wires.
Take the screen out of the main board, pull the black plastic covering the contacts on the back of the screen, unsolder the touchscrren ribon, solder 4 wires in the back of the screen, glue the 4 wires in the touchsreen w/ conductive epoxy, paint will not hold.
In 10% of the cases the touchscreen can not be recovered (has another problems, not only the ribon lost of contact.
I'm wating for a microscope to arrive so I can check about the interruption under the plastic layer, never noticed that before, maybe it can save the 10% that did not worked.
By the way, be careful about cuting the plastic top of the touchscreen, because thats the layer that touch the glass and make the contact. Cut in the sensitive area will make it unresponsive.
Last edited by ossocao
on October 16, 2007 22:55.
