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Help with solder

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SithMaster:

yey another one of these topics.

okay trying to make a keyboard hack just for now and to practice.  i have 2 chips from my boards and they are both different.

the first had he mylar sheet connected directly into a connector block.  this one doesnt have teeth but rather metal contacts that are circles that are beneath the connector block.

the second has teeth.  it cannot solder anything to this one despite using sandpaper to scratch it a little.  the first would solder instantly.  however when i try and use keyhook with it nothing shows up.  so i tried sticking the wire into the block where mylar would dwell and that didnt work either.

so im either thinking i need flux----was going to get some but i just used the solder that came with my 30 watt iron since most newer solder has flux already.  any ideas on what to do?  i know its hard without video of me trying and all but if my description of the chips is confusing ill try and get some.  thanks.

grantspain:

with the greatest respect-what the hell are you talking about ;Dhow about a lovely picture

SithMaster:



heres the chip with the teeth.

and im looking for one with the connector block but it looks like something like an ide connector.

anyway what im wondering is if i need flux or if its something else that needs to be done to get the solder to stick to the teeth on one of the boards.

see on the other it had these circle metal contacts that were really easy to solder to.  the teeth are a problem since it wont stick despite some tips ive found.

and the part about me using wire to connect the contacts was just for a test to see of it would work before soldering.  but it didnt so either the board doesnt work or it did and i ruined it.

sorry if its a little confusing since i have problems wording things.  it seems fine when i write it but makes no sense.

MaximRecoil:

That is a really tiny picture. What do you mean by "teeth"?

Kevin Mullins:

The GOLD colored area?
(they LOOK like teeth?)
Or the silver soldered legs of the components in the green area?

And yeah, that pic showed up super tiny.....

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