How to repair flexible ribbon interconnects
The camera I'm working on (Panasonic Lumix DMC-TZ35 - not available from the list) has one of the usual flexible ribbon interconnects connecting the lens motors and sensors to the main logic board. I get no continuity between the zoom motor (beneath the ribbon) and the corresponding connector pads and I suspect the track is fractured at the fold (ringed) in one of the spurs.
Repair is going to be difficult. The only way I can think of is to remove the insulating film covering the copper either side of the fold and solder wires to it to bridge the fracture.
But what can I use to remove the insulating film without damaging the track underneath?