Kurzweil PC2 Series, Руководство по обслуживанию

Страница: 57 / 126

PC2/PC2X Disassembly/Assembly
PC2 Keyboard Assembly
4-19
PC2 Keyboard Assembly
This section describes the removal and replacement of the PC2 (76-note) Keyboard Assembly.
See page 4-26 for the corresponding procedures for the PC2X (88-note) Keyboard Assembly.
Removing the PC2 Keyboard Assembly
The following procedure assumes that the PC2 is open and that you have followed the
instructions on page 4-4 to remove the top enclosure.
The PC2 keyboard is mounted onto a wooden spacer and is secured to the wooden spacer with
16 screws. The Keyboard Assembly refers to the keyboard and the wooden spacer. The assembly
is secured to the bottom enclosure with eight screws.
Note : The following steps describe the procedure to remove the keyboard from the PC2 and the
wooden spacer to gain access to the keys, contacts, contact boards, and key weights. If you need
to gain access to the keys only (i.e. key replacement), you can do so by following the procedure
described on page 4-21,
Disconnecting the PC2 Keyboard .
1. Refer to Figure 4-11. This illustration shows the locations of the keyboard and keyboard
wooden spacer screws. Both sets of screws are accessible from the bottom enclosure.
Figure 4-11 PC2 76-note keyboard bottom
2. Tilt the PC2 up and remove the four keyboard rear screws, then lay the PC2
fl
at on your
work surface.
3. Move the PC2 forward so that the front hangs over the edge of your work surface, giving
you access to the remaining screws.
4. Remove the four keyboard front screws.
5. Remove the four Mod Wheel screws and washers. At this point the keyboard is loose in
the bottom enclosure, but it has cables connected to the Mod Wheel Assembly, the
Connector Board, and the Front Panel Board.
6. Slide the PC2 back onto your work surface.
Rear panel
Keyboard
Access panel
front
wooden spacer screws
rear
keyboard rear screws
keyboard front screws