Kurzweil K2600 Series, Service Manual

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K2600/K2600X Disassembly/Assembly
Bottom Enclosure
4-15
Bottom Enclosure
Removing the Keyboard Scanner Board
1. All fl at ribbon cables use cable locking clips to secure the cables to the connectors. Remove
the cable locking clips from the fl at ribbon cables at locations J704, J705, and J714 on the
Keyboard Scanner Board. Be sure to set them safely aside so that you can reinstall them
when you reconnect the cables.
2. Disconnect the cables listed in Table 4-6.
3. The Keyboard Scanner Board is mounted onto the rear panel portion of the bottom
enclosure. It is secured to the rear panel with the same nuts and fl at washers that secure
the Switch Pedal and Pedal/Breath jacks.
4. Remove the six nuts and six fl at washers that secure the jacks.
5. Remove the Keyboard Scanner Board.
Replacing the Keyboard Scanner Board
1. Place the Keyboard Scanner Board in position through the rear panel portion of the
bottom enclosure. Be certain that the area is clear of disconnected cables, loose hardware,
and locking cable clips.
2. Install the six fl at washers and six nuts that secure the Switch Pedal and Pedal/Breath
jacks to the rear panel.
3. Connect the fl at ribbon cables listed in Table 4-6. Be sure to install the locking cable clips.
4. Connect the remaining cables listed in Table 4-6.
Removing the DSP Board
The DSP Board is mounted on the CPU Board and held in place with four nylon PC board
standoffs and two 50-pin connectors that connect the DSP Board to the CPU Board. Two styles of
nylon standoffs secure the DSP Board. Those on the left side (as viewed standing at the
keyboard) of the DSP Board have tabs that clip over the top edge of the DSP Board. Those on the
right side of the DSP Board insert through the DSP Board.
Ref. Name Cable Type Destination
J701 Player Control shielded wire Mod/Pitch Wheel Assembly
J702 Slider shielded wire Slider Board
J704 Keyboard flat ribbon Keyboard Assembly
J705 Front Panel flat ribbon Control Panel Board
J709 Scanner Power shielded wire Power Supply Board
J714 CPU flat ribbon CPU Board
Table 4-6 Keyboard Scanner Board cables