Kurzweil SP5-8 - Program Mode - Favorites and Transposition; Choosing Favorites and Transposition Settings

Bottom Enclosure
Keyboard Contact PCBs
4-18
Keyboard Contact PCBs
The SP5-8 Keyboard Assembly has three Keyboard Contact PCBs: Lo (A0 to E3), Mid (F3-C6),
and Hi (C#6 to C8).
1. Place the keyboard upside down on a at soft surface. Be sure that the keys are resting
on a soft surface to avoid scratching or other damage. The Lo, Mid, and Hi Contact PCBs
are now visible.
Removing the Lo Contact PCB
1. Disconnect the at ex cable that connects the Lo and Mid Contact PCBs. Gently tug on
the at ex cable to disconnect it.
2. Remove the 11 screws that secure the Lo Contact PCB to the keyboard chassis.
3. There is a small at plate connecting the Lo and Mid Contact PCBs. Two screws secure
it. The screw on the Lo side is one of the 11 screws described in Step 2. The second screw
is on the Mid Contact PCB. Remove the screw from the plate on the Mid Contact PCB
and set the plate safely aside.
4. Carefully lift and remove the Lo Contact PCB.
Replacing the Lo Contact PCB
1. Position the Lo Contact PCB over the keyboard chassis. The at ex cable connector and
the keyboard diodes should be positioned closest to the back of the keyboard chassis.
Tab
Post
Figure 4-14 Keyboard chassis tabs and posts
2. Refer to Figure 4-21. In addition to the 11 screws that secure the Lo Contact PCB to the
keyboard chassis, there are tabs positioned along the length of the keyboard chassis and
alignment posts that help secure and correctly position the Lo Contact PCB.
c. Angle the PCB so that its front edge is positioned under the tabs and align the screw
holes in the PCB over their location on the keyboard chassis.