[WANTED] Someone to repair circuit board
- Thread starter 4spdragtop
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Rather have someone experienced fix it. No idea what part is called that blew off, I'm assuming a diode.
MOPAROFFICIAL
Oogliboogli
Take the diode to a computer shop to identify it...or simply/not so simply get a schematic of the welder circuit board. What brand?
Mastercraft, sold up here by Canadian Tire. I have the manual so I do have a schematic.
No computer shops open here. I figgered let someone here attempt it and put some $ in their pocket.
No computer shops open here. I figgered let someone here attempt it and put some $ in their pocket.
TheGrateRonzini
Well-Known Member
https://www.mouser.com/
Electronic component supplier
Electronic component supplier
69DodgeMan
Well-Known Member
Takes some specialized tools to properly install (SMT) surface mount technology components like those. If your hands are REAL steady and your EYES are really good you may be able to do it with just a soldering iron and tweezers. Mostly though, too much heat can easily damage SMT components along with sensitivity to ESD damage.
That's why I posted a want ad. This isnt like soldering wires or copper plumbing. Everything I attempt lately turns to **** so let someone skilled attempt it.
The bottom of the diode looks fine. Photo the top side. You can also test the food with a multimeter. Typically infinite ohms one way, close to 0 ohms the other way. If you have a pencil type soldering iron and a magnafier you can fix it no issues. I used to resolder surface components smaller then that
Your only concern is if the copper trace on the cir board came off with the diode.
By the way there will be a line on the top of the diode on one end, paint or scribe. It should be on the same side as the line in front of the arrow on the board.
You can do this
Your only concern is if the copper trace on the cir board came off with the diode.
By the way there will be a line on the top of the diode on one end, paint or scribe. It should be on the same side as the line in front of the arrow on the board.
You can do this
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Not as hard as you may think! Google is your friend! Based on the pics the solder and so to say flux is there and light heat will allow you to re-install that piece. JMO
D7 is a huge SMD diode I bet it is a 1206. Look at R3, you could solder that one too, and it is 1/3 the size. I used to do it all the time
Obviously the board is fucked right now. There were issues with welder(possible relay issue)
So diode needs repair and then the relay and rest of board needs checked.
I DONT want to solder/repair this.
I want someone else that is capable to diagnose/repair. It goes beyond soldering the diode.
Anyone interested?
So diode needs repair and then the relay and rest of board needs checked.
I DONT want to solder/repair this.
I want someone else that is capable to diagnose/repair. It goes beyond soldering the diode.
Anyone interested?
A cold solder joint would produce all kinds of symptoms, and when it finally let's go it is done. I understand your hesitance. I'm done pressuring you to fix it your self.
67Dart273
Well-Known Member
I can do that Steve but don't know if I could test it out of the welder. If you can send down the board and any documentation, AND the old component, I'd be happy to give it a try Your inbox is full LOLOL
Thanks Del, lemme get a copy of schematic. Yeah friggin in box full all the time.
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