Installation; Springs; Mounting - Classic Organ Works CMK-1 User Manual

READ THIS DOCUMENT BEFORE INSTALLATION
Upon receiving this unit, remove any packing material inside the unit that may have been included to
(For internal access, ensure the unit is disconnected from all power sources.)

Springs

The keyboard contact springs are installed at Classic Organ Works. However, the nature of these contacts makes them
sensitive to movements during shipping. A visual inspection of the keyboard should be performed upon receiving to
determine if any of these springs have become displaced. A package of five spare springs is included with every
keyboard. To replace the missing springs you will need tweezers and gloves/paper towel. Then follow these
directions:
NOTE: DO NOT HANDLE THE SPRINGS WITH YOUR BARE FINGERS. THE SPRINGS ARE COATED WITH
A LAYER OF SILVER WHICH CAN DETERIORATE IF HANDLED.
1. Pick up the spring using tweezers to gently grip the middle of the spring.
2. Feed one end of the spring in between the two bus bars. Then slide the other end of the spring into the
upper hole (with the keyboard circuit board facing up) of the keyboard keys plastic actuator.
3. With one end of the spring firmly positioned, use the tweezers to grasp the other end of the spring roughly
0.5cm from the end of the spring.
4. SLOWLY stretch this end and position it into the metal spring holder on the circuit board. THE
SPRINGS DEFORM EASILY. USE EXTREME CAUTION TO AVOID OVER-STRETCHING
THE SPRINGS.

Mounting

Mounting of the CMK is specific to each customized setup. It can be mounted into a wooden case, into an existing
console, or using metal brackets. In the single keyboard configuration, the CMK is a stand-alone unit. In this
configuration, the keyboard is mounted using metal brackets. However, for a professional finish, an optional wooden
_________________________________________________________________________________________________________
CMK-1 Manual (Issue-1)
CLASSIC MIDI KEYBOARD

INSTALLATION

IMPORTANT
prevent movement of components or wiring during shipping.
1
Figure 3: Steps in replacing a dislocated spring
CMK-1
2
Page-15
3 4
October 20, 2004