Electrical – Glue or soldering

cablesgluesoldering

A 13-pin cable glued to a PCB fell off. The PCB is for the LCD screen of a Canon electronic typewriter. The other end of the cable fits into the main board of the machine.

I brought the PCB and cable to 2 repair shops. One said a special glue is needed to establish contact; the other said the glue doesn't matter but the tips of the pins need to be micro soldered.

Can someone weigh in? I'm wondering if there is an easy fix.

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PS: My intent is to pull the LCD screen off the machine to elevate it at eye level. So the LCD PCB can't be adjacent to the main board.

Best Answer

The cable has broken away from the pins originally attached to it; you can see that the pins are still soldered to the PCB.

There is no practical way to repair the existing cable; the pins were attached during the manufacturing process, and there's no way to replicate that by hand. You would have to get a new cable from the OEM.

Your best bet at this point is to replace the flat flex cable entirely, using discrete wires to make the connections between the two boards, one at a time.