NO, NO, NO!Now that I am back at my computer, you will connect the oscilloscope's probe ground to live gnd. Then you can measure the output of the chip as well as ALL the pins on the TIP122 (TR4). Measure the three pins of the FET as well, G, D, and S (TR2).
I understood. Thank you very much!It’s been a while since I took mine apart, so I don’t remember all the details. However, I believe the bottom is attached to the two sides. There are screws in the middle that go into a support that is attached to the top. I believe you can just remove the bottom and the sides in one piece. There may be a wire or two that may get in the way. Good luck!
by Duane Benson
by Aaron Carman
by Duane Benson
by Jake Hertz