Hypertherm Powermax105 Service Manual - Manual (Page 278)

Power SuPPly ComPonent rePlaCement
9-80
powermax
105 Service Manual
Replace the front end panel
1. Remove the current adjustment knob and operating mode switch knob from the front end panel by pulling them
straight off their respective post.
2. Carefully pull the top of the front end panel away from the power supply. The front panel is still attached to the
bottom of the power supply and can only move a short distance.
3. Remove the three screws that secure the control board to the front panel. Two screws are installed at the top of the
control board, one at each end. The third screw (not shown) is installed in the middle of the control board along the
bottom edge.
4. Carefully slide the control board from behind the front end panel toward the power board side of the power supply.
5. Disconnect the ribbon cable from the control board and set aside the control board.
Control board
Front end panel - top
Operating mode knob
Current adjustment knob
Power board
Ribbon cable
Top
mounting
screws