Hypertherm Powermax105 Service Manual - Manual (Page 238)

Power SuPPly ComPonent rePlaCement
9-40
powermax
105 Service Manual
Remove the DSP board
1. Disconnect the DSP connector (1) from the top of the DSP board (3).
Note: This step is only required on systems that have an RS485 communication board installed. Systems
without an RS485 communication board installed will not have a connector plugged into the top of the
DSP board.
2. Remove the two screws (2) from the DSP board.
Two rows of connector pins (4) are located on the back of the DSP board (3) as shown in the figures below. The
dashed rectangle identifies the location of the pins on the back of the board.
3. Carefully pull the DSP board (3) straight out from the power board (5). Do not bend the pins.
4. Disconnect the ribbon cable from the ribbon cable connector (6) on the back of the DSP board. Set the DSP board
aside.
1
4
6
2
3
3
5
DSP back view
DSP front view