Removing The Slider Board - Kurzweil PC3x Service Manual

3. Connect the stranded wire cable from the Slider Board to J305 on the Connector Board.
4. Connect the stranded wire cable from the Transformer to J324 on the Connector Board.
5. Connect the stranded wire cable from the Wheels Assembly to J308.
6. Connect the flat ribbon cables from the Keyboard Assembly to J306 and J307 on the
Connector Board.
7. Connect the flat ribbon cable from the Front Panel Board to J304 on the Connector Board.
Warning: If you are replacing the Connector Board with a new board, check the flat ribbon cable
at location J202 on the Front Panel Board. Some earlier units have a small PC board attached to
the flat ribbon cable. If the unit has this small PC Board, check the value of RN10 and RN12 on
the new Connector Board. If a 6.8K resistor network is installed in RN10 and RN12, disconnect
the flat ribbon cable from J202, remove the small PC Board, and reconnect the cable directly to
the Front Panel Board.
8. Connect the stranded wire cables from the Engine Board to J301, J303, and J325 on the
Connector Board.
9. Follow the procedure on page 3-8 to install the enclosure support wall.

Removing the Slider Board

1. Follow the procedure described on page 3-8 to remove the enclosure support wall.
2. Follow the procedure described on page 3-9 to remove the Connector Board.
3. Tilt the top enclosure up and remove the ten slider knobs, then lay it flat on your work
surface.
4. Following Steps 5 and 6, disconnect the cables listed in Table 3-3.
Ref.
J303
J304
Table 3-3
5. Disconnect the flat ribbon cable from J303.
6. Disconnect the shielded wire cable from J304.
Note: The stranded wire cable connected to location J302 was disconnected following the
procedure to remove the Connector Board. It is not necessary to disconnect it from the Slider
Board. However, if you are replacing the Slider Board with a replacement board, be sure to
disconnect the cable and connect it to the replacement board.
7. Remove the four screws that secure the front panel edge of the Slider Board.
Name
Slider Bridge
IBBB
Slider Board cables
Cable Type
flat ribbon Front Panel Board
stranded wire Button Board/Wheels Assembly
Disassembly/Assembly
Top Enclosure
Destination
3-11