Bulova Driver Led

[mervin_fer]

Hi,
I am here again with another problem and I hope you guys can give some ideas. The last time I was here, you guys were great and I had my hughes module working over a month now. Now the new problem. Just bought a bulova driver's led and it's not working. After replacing the QC and the Trimmer, I got it working. Only problem is the led's have missing segments. After close inspection I notice there were 5 loose bonded wires. Question : How do I secure these wires? I don't think I can have access to a bonding machine here in Malaysia so I've come up with 2 ideas. First Idea is to try soldering the bonded wire but then again I'm not sure if lead will stick to bonding wire. The next idea is to used silver epoxy (or contact paint or whatever you guys call it. I'm open for more ideas. Thanks.

[retroleds]

Mervin:
Soldering is out of the question - soldering irons are too big, too much heat will kill components and/or lift the traces off the substrate. Silver epoxy is what you want, and 10-20X magnification.

Technique:(You will need silver epoxy, fine sewing needle,rubbing alcohol/isopropyl/naptha).

Mix your silver epoxy on a slick piece of paper or plastic - ordinary paper will get the silver dust embedded in it and you will lose a good portion that way while mixing. You now have about 5 minutes to work. About 1-2 minutes after mixing, the epoxy will be at it's softest state, and prime to work with. Take a sharp needle and dip it .5-1 mm into the epoxy, pulling it out slowly to create a thin tip. Start with a shallower "dip" as the epoxy blob will be huge under magnification. Moving slowly toward the wirebond, parralell with the wire, bump into the wire with the epoxy tip maybe 1mm above the connection point and just touch the connection point. Hopefully you will have got a little on the wire AND to the contact point in one shot. You really can't be screwing around with trying to wipe the epoxy around, nor is the idea of cleaning it off in that micro-environment very feasible. Use the alcohol to clean off the needle between "dips". And don't try to use the silver epoxy once it start to dry/curd - it will not stick good and will lead you to damage stuff in the process. Wishing you best results.

Oh, and try to place your work so that you can have your wrist resting on a work surface, as this really requires just fine finger movements, like you were doing eye surgery or such. I worked for an artist for a while and he had this neat stick that was held off his canvas, so he could rest his hand while doing fine details like eyelashs and such....resting your hand will make it much easier.

[mervin_fer]

Ok thanks for info. Search Ebay and this is what I found. Check this out for me and let me know if this is recommended. Ebay Item No: 220657639041.

[mervin_fer]

found 2 other different conductive paint please check this out Ebay item no: 140397688417 and item no: 330456823666 these are called "Wire Glue".