Replacing A Natural/White Key; Servicing The Keyboard Contact Boards; Removing The Treble Contact Board; Replacing The Treble Contact Board - Kurzweil CUP2 Service Manual

Replacing a Natural/White Key

1. Verify the placement of the key spring.

2. Hook the front end of the key under the keyboard chassis.

3. Lower the key into position. Align the pivot with the hole at the rear of the key.

4. Push down on the key. It should snap into position onto the pivot.

The Keyboard Assembly has nine keyboard stiffening brackets positioned along the underside

of the chassis. Each bracket is secured to the keyboard chassis using three screws: two small

machine screws through the chassis and one black screw through the contact board. To remove

a contact board, you must rst remove the stiffening brackets.

1. Tilt the keyboard up (front edge of the keys facing down) and disconnect the at ribbon

cables that connect the Treble and Bass Contact Boards to the Interface Board. The

connectors are secured with tape. Peel back the tape to free the cables. Set the cables safely

aside and lower the keyboard.

2. 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 stiffening brackets and Treble and

Bass Contact Boards are now visible.

1. Disconnect the small ribbon cable that connects the Treble and Bass Contact Boards.

2. Remove the screws that secure the ve stiffening brackets (three screws per bracket) to the

Treble Contact Board and remove the brackets.

3. Remove the remaining 18 screws that secure the Treble Contact Board to the keyboard

chassis and remove the Treble Contact Board.

1. Position the Treble Contact Board on the keyboard chassis. Be sure that the rubber key

contacts line up properly through the holes in the keyboard chassis.

2. Install the 18 screws that secure the board to the keyboard chassis.

3. Position a stiffening bracket over the board and install the three screws to secure it to the

keyboard chassis. Repeat for the other four brackets.

4. Connect the small ribbon cable that connects the Treble to the Bass Contact Board.

Disassembly/Assembly

Keyboard Assembly

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