HP Designjet 3D Service Manual page 196

5. Using a Phillips screwdriver, remove the 6 controller board mounting
Remove the (6)
mounting screws
6. Gently lift the controller board up from the single board computer (SBC)
-180
Figure 89: Remove the 2 screws that hold the Diagnostics DB-9 cable in
Remove the DB-9
connector
screws. See Figure 90.
Figure 90: Controller board mounting screw locations
at the P104 connector. DO NOT bend any pins on the board.
See Figure 91.
place