The scope? IT only has AC DC and a !with a _ under it. I do remember the wave used to be like photo 1 however the top and bottom were very wavey like an ocean
Just not sure if it's normal for one side to have no wave at all? I had to put a load on the outputs to get it to start switching. The side I just changed the 2x today is the side I'm not getting any wave from.
No this is the 2 pins on the driver board.. marked in the photo. Yes fets are in circuit rectifiers removed.
A few posts back I showed what was on the gates of one side. Similar wave. The other side I just get a bunch of random stuff. ( High side I assume? Due to not seeing a proper wave?)
A few posts back I showed what was on the gates of one side. Similar wave. The other side I just get a bunch of random stuff. ( High side I assume? Due to not seeing a proper wave?)
You need to work through the drive circuit to see where the good signal is lost. The next point I'd check is the output of the optocouplers.
Use pin 5 as the scope's ground.
Use pin 5 as the scope's ground.
I checked the output of it but as the part number has been rubbed off I can't pull up a schematic.
The signal comming out was a bit messy. Would it be best to just swap it out with a known good one?
Edit I didn't however use pin 5 as ground. Just used main ground
The signal comming out was a bit messy. Would it be best to just swap it out with a known good one?
Edit I didn't however use pin 5 as ground. Just used main ground
Did you see the diagram I posted?
The part number is 6N137.
Re-check and compare the output of the optos, using pin 5 as the scope ground.
The part number is 6N137.
Re-check and compare the output of the optos, using pin 5 as the scope ground.
Am I correct in thinking that I'll never see a proper wave on the high side? I should only generally see a square or there abouts on the low side? Because I do see a nice square wave on the low side but just random on the high side?
