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Looking to isolate a pin in a header

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jamiec:
Hi,I am doing a mod on an NES Kiosk and I am needing to isolate a couple of pins from the connectors.
There is 16 72-pin connectors and I would love to find a way to isolate a couple of pins without having to desolder every one of them. I cannot cut the pins as I cannot gain access to underneath the connector, I also cannot just de-solder 1 pin and slide it out the connector as they are pushed in from the bottom. Also the traces are top side and I really want to avoid cutting them.The holes do have some space around them but not enough for heat shrink tubing.
Does anyone have any tips?
I have included a photo of the pin I am looking to isolate.

tggzzz:
Custom extender PCB, with jumpers to cut/make connections.

nctnico:
What do the connectors look like at the other side? If they are card edge slots, then you can use polyimide (kapton) tape to isolate one of more fingers.

Gyro:
I have some small bits of thin walled heat resistant translucent sleeving that is slim enough to fit between connector pins and 1mm holes. No idea where I got them, but it must be available somewhere.

nctnico:

--- Quote from: Gyro on November 19, 2021, 12:02:41 pm ---I have some small bits of thin walled heat resistant translucent sleeving that is slim enough to fit between connector pins and 1mm holes. No idea where I got them, but it must be available somewhere.

--- End quote ---
Something like this: https://paramounttube.com/kapton-tube-polyimide-tubing/. First hit from Google looking for 'kapton sleeving'. 'Polyimide Tubing' likely results in even more hits.

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