How not to repair a compass....

fastblackmerc

fastblackmerc

Everything Marauder, LEDs & HI
How not to repair the compass in the overhead console.

Incorrect


Correct


Had to replace all the resistors as they were damaged by too much heat.
 
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
 
Spectragod said:
Cold solder joints....
Click to expand...

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
 
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:
main-qimg-ed6c6ad361d1b2a7602a5b43ddfc5ec9
 
Turbov6Bryan said:
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
Click to expand...

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.
 
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
 
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.
 
Spectragod said:
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.
Click to expand...

The resistors had the solder pads come off the body of the resistor. Too much heat.
 
justbob said:
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
Click to expand...

Love a guy who can lay the pipe:o
 
You must log in or register to reply here.
Back
Top