No one has a NXT250DC to help me to find what was in area where I put "missing parts"?
I checked all the diodes and transistors and there is no sort circuit, so I guess they are ok.
The next step is to check the four circuits that generate the signal for the IGBTs (with an oscilloscope).
I will...
The two capacitors are indeed 680uF/400v and, ofcourse, the solder was disturbed which means that this two ware changed. Also the position of the two green rezistor is "unnatural". Any way, I will change the position of this two parts after I check them.
The second area (with missing parts)...
Hello,
The two big black capacitors are touching the cover of the unit and I assume that this component aren't the right height. Maybe the previous owner has replaced them with others one without tacking into account the max height of the capacitor and maybe the value also.
The second area...
Hello,
In picture below is the board of NXT250DC. Maybe someone can help me:
- what capacitors are fitted by manufacturer (see picture, upper area)
- what are the missing parts ( bottom area of the picture)
Thank you for the help.
Hello,
I saw that manual but my unit is NXT250DC, not NXT250AC/DC like in manual from link above.
On the other hand, looking on manual above, I saw that my unit doesn't have all boards that can be seen in page 16 of 18 from this manual.
Regarding the faulty of my unit, if I can't find the...
I have a Nexus NXT200DC that is faulty and I would like to repair this unit. If anyone has the chematics of this welder, I'd like to send them to me.
Thank you.