Replacing The Engine Board; Removing The Usb/Xd Daughtercard; Replacing The Usb/Xd Daughtercard - Kurzweil PC3x Service Manual

Disassembly/Assembly
Top Enclosure

Replacing the Engine Board

1. Place the Engine Board in position on the top enclosure.
Note: Be sure the blue xD Daughtercard bezel is seated in the rear panel cutout properly.
2. Align the center screw hole on the front panel edge with the thread marks in the extrusion
3. Install the two screws that secure the USB/xD Daughtercard to the rear panel.
4. Connect the flat ribbon cable from the LCD to J15 on the Engine Board.
5. Connect the stranded wire cables from the Connector Board to J5, J21, and J33 on the
6. Connect the shielded wire cable from the Connector Board to J18 on the Engine Board.

Removing the USB/xD Daughtercard

The USB/xD Daughtercard is mounted on the Engine Board and is held in place with a 28-pin
connector.
1. Follow the procedure described on page 3-17 to remove the Engine Board.
2. Lift the USB/xD Daughtercard straight up to disconnect it from J12 on the Engine Board.

Replacing the USB/xD Daughtercard

1. Position the USB/xD Daughtercard over the 28-pin connector at J12 on the Engine Board.
2. Verify that the Engine Board pins are lined up properly with the 28-pin connector on the
3. Follow the procedure described on page 3-18 to install the Engine Board.
3-18
and install the three screws that secure the front panel edge. See Figure 3-14.
Engine Board.
USB/xD Daughtercard. Press the USB/xD Daughtercard down to insert the pins into the
28-pin connector.