Cdworks Posted May 30, 2013 Share Posted May 30, 2013 I have one of these I was told the circuit board was bad by a skilled electrician. Do you all know any way to get one and replace it? Thank you! Quote Link to comment Share on other sites More sharing options...
macbruce Posted May 31, 2013 Share Posted May 31, 2013 This is the rub when you buy an import welder, finding parts and consumables is a nightmare....Good luck. Quote Link to comment Share on other sites More sharing options...
Cdworks Posted May 31, 2013 Author Share Posted May 31, 2013 It was free so if its a lost cause so be it Quote Link to comment Share on other sites More sharing options...
jmccustomknives Posted May 31, 2013 Share Posted May 31, 2013 Trust me in this, it will cost more to replace the board than buy a new machine. Quote Link to comment Share on other sites More sharing options...
windancer Posted May 31, 2013 Share Posted May 31, 2013 The wire feeds can be great if you buy a decent brand and buy it from your local welding shop. They will always be able to get parts and do repairs. No so with the imports and the box store models. Dave Quote Link to comment Share on other sites More sharing options...
Backwoods Blacksmith Posted May 31, 2013 Share Posted May 31, 2013 I had a Lincoln SP 250 for many years. The board finally went out right in the middle of a job. The machine had been discontinued, so no board avaliable. To have a board made would have been 1200 bucks. Bought a Miller. Just because you by quality is no gaurentee. Buy the best you can afford based on the type and amount of work. Quote Link to comment Share on other sites More sharing options...
BIGGUNDOCTOR Posted June 1, 2013 Share Posted June 1, 2013 See if you have an electronics class at a local community college, then see if the instructor, or a student, would like a project. You pay for parts, they do the troubleshooting, and repair. May be something simple in the end. Then either use it, or sell it. I love my Lincoln SP-100, and have run a ton of wire through it. I have 4 MIGs 2 Lincolns,and 2 Millers. Look for a brand that you can get serviced locally. Quote Link to comment Share on other sites More sharing options...
evfreek Posted June 2, 2013 Share Posted June 2, 2013 This looks like an infinitely adjustable 120V MIG welder, similar to a Lincoln SP-100. The voltage adjustment comes from an SCR pair triggered by the control board. The PC control board also provides for adjusting the motor speed. If you have some knowledge of electronics, you can fix this unit. It is not as difficult as an inverter welder, but more difficult than a battery charger. Also, if you cannot fix it, you may be able to salvage some interesting parts. If the power supply is good, you have a variable voltage, high current supply, which can be used for electrolytic derusting and various mischief. If the wire feed is good, you can use this as a feeder for a power supply. There are a lot of Millermatic 35 welders with bad guns or drive motors floating around. This could be cobbled together as a feeder if its power stage is out. All the power stage is is a phase control for triggering the SCR's. Diagnosing it is fairly straightforward with a basic SCR manual available from the web. What is the goofing up? Quote Link to comment Share on other sites More sharing options...
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