Kurzweil PC88 - Page 74

Chapter
3
Disassembly/Assembly
Removing the Keyboard Contact Boards
This procedure assumes that the PC88 has been opened
and that the Top Cover Assembly has been set safely aside.
Follow the instructions indicated to remove the
keyboard from the chassis.
The keyboard should be out of the bottom chassis at
this point.
Place the keyboard chassis upside down on a flat soft
surface. Be sure that the keys are resting on a soft surface
so that they will not be scratched or damaged.
The Keyboard Electronics spans over two printed
circuit boards and are connected by a small interconnect
cable.
Removing the Treble Contact Board
Remove the 26 screws that secure the board to the
keyboard chassis.
Disconnect the small ribbon cable that connects the
Treble to the Bass Contact Board.
The Treble Contact Board can now be removed from
the keyboard chassis.
You will notice black spacer brackets mounted between
the Keyboard Contact Boards and the keyboard chassis. It
is not necessary to remove them. However, if you need to
remove the spacer brackets, lift them horizontally. The
spacer brackets mount to the chassis by small pegs that fit
into position on the keyboard chassis. If you lift from one
end to the other, you could easily break off one the pegs.
PC88 Service Manual
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