How not to repair a compass....

[fastblackmerc]

How not to repair the compass in the overhead console.

Incorrect
http://i167.photobucket.com/albums/u133/fastblackmerc/MM%20Mods/Compass%20Repair/20161128_193321_zpsejrjdnbp.jp g (http://s167.photobucket.com/user/fastblackmerc/media/MM%20Mods/Compass%20Repair/20161128_193321_zpsejrjdnbp.jp g.html)

Correct
http://i167.photobucket.com/albums/u133/fastblackmerc/MM%20Mods/Compass%20Repair/20161128_193652_zps3kpusb6q.jp g (http://s167.photobucket.com/user/fastblackmerc/media/MM%20Mods/Compass%20Repair/20161128_193652_zps3kpusb6q.jp g.html)

Had to replace all the resistors as they were damaged by too much heat.

[04 Quicksilver]

Thanks for working on it!

BW

[the fat bastid]

that's adorable.

[Turbov6Bryan]

Funny, I was the one who soldered them

I tested each resistor after a few were cracked joints, it still didn't work


There may be another issue with it

[fastblackmerc]

Funny, I was the one who soldered them

I tested each resistor after a few were cracked joints, it still didn't work


There may be another issue with it

I ended up replacing all the resistors. Works fine.

[crownvic97]

Does anyone here do this repair for a fee?

[the fat bastid]

fastblackmerc does

[justbob]

Damn, that solder didn't flow out too well.


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[Spectragod]

Damn, that solder didn't flow out too well.


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Cold solder joints....

[Spectragod]

Does anyone here do this repair for a fee?

I can, but I don't charge money to help members.

But fastblackmerc(Jim), will charge you for the repair if that's what your looking for.

[Turbov6Bryan]

Cold solder joints....

So which is it? Jim said it got too hot and burned up the resistors, and you say too cold?

The compass was flaking out and there was another spot on the board that looks like it got over heated


Since the guy who owns the compass was over at my house getting bad switches and other minor stuff taken care of, I pulled the compass out and found some issues with it :)
I did it as a favor, and left the compass out so he could send it to Jim for repairs

Maybe I just suck at soldering:lol:

Hope Jim finds the other issue with it

[the fat bastid]

Cold solder joint means the wire/component wasn't heated up so the solder didn't flow to it and just sits there and blobs.
like so:
https://qph.ec.quoracdn.net/main-qimg-ed6c6ad361d1b2a7602a5b43ddfc5e c9?convert_to_webp=true

[Turbov6Bryan]

Cold solder joint means the wire/component wasn't heated up so the solder didn't flow to it and just sits there and blobs.
like so:
https://qph.ec.quoracdn.net/main-qimg-ed6c6ad361d1b2a7602a5b43ddfc5e c9?convert_to_webp=true

So cold solder joints burn up resistors? Lol

[Spectragod]

So which is it? Jim said it got too hot and burned up the resistors, and you say too cold?

The compass was flaking out and there was another spot on the board that looks like it got over heated


Since the guy who owns the compass was over at my house getting bad switches and other minor stuff taken care of, I pulled the compass out and found some issues with it :)
I did it as a favor, and left the compass out so he could send it to Jim for repairs

Maybe I just suck at soldering:lol:

Hope Jim finds the other issue with it

They look cold to me, but hey, it's not my thread....

I can say, you used too much solder, you used to big of a tip on your iron and needed a bit more heat. Perfect practice makes perfect. I'm doubtful that you burned up the resistors......very doubtful.

[justbob]

I'm hit or miss on soldering circuits.. Either it's the best you've ever seen or it's the biggest WTF out of your mouth. LOL

Now soldering pipe? I can run a mile of 4" or a bank of 2" water heaters, pumps, and controls, or even a design build mechanical room like a museum piece and never a leak! [emoji4]


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[fastblackmerc]

The resistors are surface mount type. The solder pads are on the bottom of the resistor..... not the top.
I removed the excess solder from the top of the resistors, tried the compass, it didn't work. Removed the resistors, re-soldered them and it still didn't work. I then replaced the resistors, after tinning the solder pads on both the circuit board and the resistors. By tinning both surfaces to be soldered there is less chance of creating a cold solder joint.
I use an iron with a very small pencil tip and the highest lead content rosin core solder I can buy.

If I get a chance I'll try and post step-by-step pictures.

[fastblackmerc]

They look cold to me, but hey, it's not my thread....

I can say, you used too much solder, you used to big of a tip on your iron and needed a bit more heat. Perfect practice makes perfect. I'm doubtful that you burned up the resistors......very doubtful.

The resistors had the solder pads come off the body of the resistor. Too much heat.

[Spectragod]

The resistors had the solder pads come off the body of the resistor. Too much heat.

Or they were pulled loose without enough heat, seen the pads come off both ways.

And I prefer silver solder on SMC's.

[04 Quicksilver]

Just wanted to say thanks to Bryan and Jim for helping me out.

BW

[lji372]

I'm hit or miss on soldering circuits.. Either it's the best you've ever seen or it's the biggest WTF out of your mouth. LOL

Now soldering pipe? I can run a mile of 4" or a bank of 2" water heaters, pumps, and controls, or even a design build mechanical room like a museum piece and never a leak! [emoji4]


Sent from my iThrone using Tapatalk

Love a guy who can lay the pipe:o

[Curless]

They look cold to me, but hey, it's not my thread....

I can say, you used too much solder, you used to big of a tip on your iron and needed a bit more heat. Perfect practice makes perfect. I'm doubtful that you burned up the resistors......very doubtful.

Too big of a tip??? Need some more heat??? Practice makes perfect??? Dirty porn talk right here... I love it! Hi Darren!:rofl::wave::run:

[Spectragod]

Too big of a tip??? Need some more heat??? Practice makes perfect??? Dirty porn talk right here... I love it! Hi Darren!:rofl::wave::run:

Hi sailor!!!!!!!!:D

[ByronRACE]

Lead free solder probably. It's a lot harder to work with than the old 60/40 lead solder. I use lead for everything.

[04 Quicksilver]

It's alive! Thanks to Jim/FBM

[fastblackmerc]

It's alive! Thanks to Jim/FBM

Your welcome!

Glad I could help out!

[FordNut]

Can the old solder be acquired? I used to solder in my job, so I know (or knew) how to do it. I just tried to solder a circuit board with the new stuff and it just balled up in blobs.

[fastblackmerc]

Can the old solder be acquired? I used to solder in my job, so I know (or knew) how to do it. I just tried to solder a circuit board with the new stuff and it just balled up in blobs.

Yes you can still get 60/40 (lead/tin) solder. If the solder is balling up then it's either a dirty surface or not enough heat. Also make sure the tip is clean.