Waldorf KB 37 User Manual - page 9
6
ATTACHING MODULES
5.3
MIDI
Before connecting and disconnecting the KB37 from a power supply source,
turn your amp’s volume control all the way down to avoid damage due to on/off
switching noise. The KB37 produces a high-level output signal. Please take
care that the connected playback device is suitable for the high level of an elec-
tronic instrument. Never use the mic or phono input of the connected amp!
5.3
MIDI
The DIN jacks provide the classic MIDI connectivity that has been used for
lightyears. Any data received at the MIDI In jack is merged with USB MIDI
and the MIDI Out delivers the same data as sent over USB. It’s also noteworthy
that MIDI Thru is hardwired to MIDI In, so there is no additional latency when
chaining devices.
5.4
USB
Using a USB cable you can connect the KB37 to your computer when observing
the following system requirements:
• Windows PC: Windows 7 or later is recommended, a USB port
• Linux PC: a USB port
• Apple Macintosh: Intel Mac with Mac OS X 10.6 or newer, a USB port
The USB connection can be used for:
• Transmitting and receiving MIDI data
• Dumping firmware updates
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Attaching Modules
Before connecting modules, make sure that the KB37 is turned off. Please also
disconnect the mains plug. You should follow this precaution to minimize the
risk of damage to the unit and your precious modules.
6.1
Connecting Modules
The bus plane of the KB37 features 14 connectors in two sections that are
regulated seperately to distribute the power dissipation more equally. Each
section can deliver up to 1A of current, where a total limit of 1.5A must not be
exceeded. Please consult the documentation of your modules’ manufacturers
for the power consumption of each device.
It is advisable that you also distribute the connectors of your modules over
the whole bus plane, especially if you use modules that draw a lot of current.
However, no damage can occur if you don’t follow this advice.
After connecting all modules, check if the power LEDs at the backplane still
light up when you switch on the unit. If not, there is either a short-circuit or
the total consumption is too high. In both cases, try to find out the cause by
disconnecting modules one a time.
6.2
Mounting Modules
To mount your modules use M3 x 6 screws. Is is advisable to use washers to
protect the surface of your modules’ front panels. The maximum depth of the
modules that can be mounted is 65mm, including the bus connector. Please
also note that modules that are mounted on the right side of the frame are
limited to 25mm depth because of the power supply located below them.
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