Help with Dell 1209S Projector

Jeff Golas · October 27, 2011, 01:45:56 PM

Thats him!

Jeff Zylstra · October 27, 2011, 03:09:51 PM

Quote from: Jeff Golas on October 26, 2011, 03:21:34 PM
Look up a guy named Bob Roberts...if you email him, I'm sure he can send you to someone local that can fix it on the cheap. He is sort of a retired electronics legend in the coin-op world and lives right in N'awlins. Tell him one of his customers referred you even though its not really a coin up related thing.

(He sells parts like capacitors, etc)

Jeff

Why does this sound like a Jimmy Buffet song?

Gene Foraker · October 28, 2011, 11:38:35 AM

Quote from: Jeff Zylstra on October 27, 2011, 09:30:32 AM

The trick with soldering electrical is getting the right amount of heat without frying the plastic circuit board and/or other components around what you're soldering. Almost like "dropping" solder on the joint.

Yikes! That is a bad analogy. Nothing like dropping solder on the joint. That will guarantee a bad connection. You have to never touch the solder to the iron to melt it but heat the joint enough to melt and absorb the solder.

Jeff Zylstra · October 28, 2011, 11:46:50 AM

Quote from: Gene Foraker on October 28, 2011, 11:38:35 AM
Quote from: Jeff Zylstra on October 27, 2011, 09:30:32 AM

The trick with soldering electrical is getting the right amount of heat without frying the plastic circuit board and/or other components around what you're soldering. Almost like "dropping" solder on the joint.

Yikes! That is a bad analogy. Nothing like dropping solder on the joint. That will guarantee a bad connection. You have to never touch the solder to the iron to melt it but heat the joint enough to melt and absorb the solder.

It is a bad analogy. You really have to apply some serious heat to a plumbing joint compared to an electrical connection. Applying that same amount of heat would result in total destruction of the components which is what I meant to say. Sorry for the confusion.

Jim Jensen · October 28, 2011, 02:22:07 PM

I can roast a brass & copper connection quite fully, so probably best to keep me away from circuit board soldering.

I helped a plumber one day, using MAPP gas instead of propane, which I was used to using. MAPP is much hotter - roasted the copper so hot it wouldn't bond with the solder. You gotta move fast with MAPP gas.

Jeff Zylstra · October 28, 2011, 04:04:54 PM

Quote from: Jim Jensen on October 28, 2011, 02:22:07 PM
I can roast a brass & copper connection quite fully, so probably best to keep me away from circuit board soldering.

I helped a plumber one day, using MAPP gas instead of propane, which I was used to using. MAPP is much hotter - roasted the copper so hot it wouldn't bond with the solder. You gotta move fast with MAPP gas.

I was having trouble soldering a shower valve in place, so I went out to get some MAPP gas for the additional heat. It turned out that the shutoff valve wasn't seating fully, and the pipe still had water in it. Once I drained the pipe and stuck a chunk of bread in the pipe to block any residual water, it worked fine.