Introduction
Thank you for purchasing the Korg MS-20M Kit Monophonic
Synthesizer Module Kit.
To ensure trouble-free enjoyment, please carefully read this
manual and use the product correctly. In addition, be sure to
store this manual in a safe place for future reference.
The MS-20M is a modular synthesizer that recreates the sound
of the MS-20, which was released in 1978. Using similar parts
with comparable specifications on a circuit board of nearly the
same design, the MS-20M recreates the sound of the original
MS-20 when it was first released. The newly added PWM, EG 2
NORMAL OUT, CV IN (V/Oct) and V-TRIG IN jacks provide
greater flexibility. Since the MS-20M is not equipped with a key-
board or modulation wheel, the functions related to those fea-
tures have been removed.
For details on the differences between the MS-20 and MS-20M,
refer to "MS-20M Parts and Their Functions" on page 13.
We recommend reading the reprint of the original Owner's Man-
ual for in-depth descriptions of the original controls and their
functions.
Since this manual contains additional information and details on
new functions, carefully read this manual together with the orig-
inal Owner's Manual.
The original Owner's Manual contains terms and phrases used
*
at the time of the original product release in 1978. The manual
may also contain information that differs from the MS-20M Kit or
may mention products that are no longer available. In addition,
the specifications contain details and measurement standards
from the time of the original MS-20 release, which differ from
those of the MS-20M Kit.
Assembly
Precautions before assembly
Avoiding injuries while handling parts
Carefully handle the circuit boards to avoid injuries that could be
inadvertently caused by protruding parts. Protect your hands by
wearing (cotton) work gloves. In addition, be sure to wash your
hands with soap when finished with the assembly procedure.
Properly aligning screws and nuts before tightening
Tightening screws and nuts inserted at an angle may damage
the threading, preventing them from being fully tightened. Be
sure to align screws properly before tightening them.
In addition, be careful not to tighten screws with excessive force
or over tighten them, otherwise the parts may be damaged.
Preventing injuries and scratches to parts while using tools
When using tools to tighten screws and nuts, be careful to avoid
injuries, for example, to your fingers. In addition, carefully han-
dle tools to avoid scratching panels, etc.
Provide a sufficiently large work space to complete the assem-
bly procedure, and prepare work mats so parts will not be
scratched.
Preventing loss of screws and nuts
Carefully handle the included screws and nuts so they will not
be lost. In addition, do not use screws or nuts other than those
included for assembly, and do not use the included screws and
nuts for any other purpose.
TIP Extra screws and nuts are included. Use them as spares.
Tools to prepare
Phillips (+) screwdrivers: Use a screwdriver that's appropri-
ate for the size of the screw. Using a screwdriver of the wrong
size may damage the screw or may not properly tighten the
screw.
Box-end wrench (included): Use for tightening 11 mm and 12
mm hex nuts.
Mini-wrench (included): Use for tightening knurled nuts.
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