Model 8-436
ver. 1.0
INSTALLATION MANUAL
Rev. 2
7
© 2018 CHD Elekt roserv is
TR2-KBD
MIDI Interface for Korg Trident Keyboard
Model 8-436 ver. 1.0
Contents page
1111 INTR
INTRODUCTION
OD UCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTRINTR
1.1 MIDI INTERFACE KIT PARTS
ODUCTIONODUCTION
MIDI IN TERFA CE KIT PART S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
MIDI INTERFACE KIT PARTSMIDI INTERFACE KIT PARTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3333
1.2 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2222 INSTALLATION OF MIDI INTERFACE
INSTALLATION OF MIDI INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION OF MIDI INTERFACEINSTALLATION OF MIDI INTERFACE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
.
. .
4444
2.1 RELEASING OF THE INSTRUMENT COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 MIDI-IN SOCKET INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 FLAT CABLE MONTAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 INTERFAC E BO ARD INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 INSTRUMENT ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2
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Copyr ight © 2018 CHD E lektroserv is.
TR2-KBD
1111 INTR
INTRODUCTION
ODUCTION
INTRINTR
ODUCTIONODUCTION
Korg Trident / Tri dent Mk II Keyboard MIDI Interface enables the integration of MIDI in your Trident instrument.
The instrument's keyboard can be controlled with this MIDI interface in parallel manner. The interface only
receives MIDI data so it has MIDI input only.
1.1
1.1 MIDI INTERFACE KIT PARTS
MIDI INTERFACE KIT PARTS
1.11.1
MIDI INTERFACE KIT PARTSMIDI INTERFACE KIT PARTS
The supplied MIDI interface kit contains all necessary parts,
materials, and detailed installation instructions. The kit contents:
1. MIDI interface board with self-adhesive supports
2. MIDI connector with bunched cables and screws, nuts and
washers
3. 14-wire flat cable with connector
4. Owner’s and Installation manuals in PDF form
1.2
1.2 GENERAL INFORMATION
GENERAL INFORMATION
1.21.2
GENERAL INFORMATIONGENERAL INFORMATION
The installation of all interface components is very easy. If yo u follow the instruct ion from this manual there will
be no major problems during the installation procedure. The cover of the instrument will not be markedly
damaged during the installation. The physical appearance of the vintage instrument remain s nearly the same as
before the installation. If n ecessary, th e in terface can be removed an d th e instrument restored back to original
appearance. All original features of the Korg Trident (Mk II) are kept. The instrument can be used the same way
as before the retrofitting.
The following tools are necessary for the installation: Phillips screwdri ver, driller, drill s 3,2 and 16 mm, smaller
rasp, pliers, soldering iron (a low heat iron and soldering paste).
Attention !
Attention ! Disconnect the instrument form the mains prior to the installation. Otherwise, there is a
Attention !Attention !
risk of the electric shock!
Attention!
Attention! Observe precautions for handling electrostatic discharge sensitive devices!
Attention!Attention!
Attention!
Attention! The producer is not responsible for any eventual mechanical or electrical damage of the
Attention!Attention!
instrument caused by the infringement of the described installation procedure or by careless
manipulation during the installation of the MIDI interface!
MIDI Interface for Korg Trident Keyboard
Pic. 1
Pic. 1 –––– Parts of MIDI interface
Parts of MIDI interface kit
Pic. 1 Pic. 1
Parts of MIDI interface Parts of MIDI interface
Model 8-436 ver. 1.0
kit
kit kit
3
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Copyr ight © 2018 CHD E lektroserv is.
TR2-KBD
2222 INSTALLATION OF MIDI INTERFACE
INSTALLATION OF MIDI INTERFACE
INSTALLATION OF MIDI INTERFACEINSTALLATION OF MIDI INTERFACE
MIDI Interface for Korg Trident Keyboard
Model 8-436 ver. 1.0
The interface is connected to the keyboard switch matrix on “Key Assigner“ board of the instrument. Label of
this board is KLM-300 in Trident and KLM-377 in Trident Mk II. These boards are different only in details. The
interface is connected to both types of board by the same way.
Pic. 2
Pic. 2 –––– Connection of the in ter face
Conne ction of the interface
Pic. 2 Pic. 2
Conne ction of the interface Conne ction of the interface
2.1
2.1 RELEASING OF THE INSTRUMENT COVER
RELEASING OF THE INSTRUMENT COVER
2.12.1
RELEASING OF THE INSTRUMENT COVERRELEASING OF THE INSTRUMENT COVER
a) Unscrew the six screws from the top of the instrument (pic. 2.1-1) and the six screws on the rear panel (pic.
2.1-2). Do not lose the screws. They will be used again after the MIDI kit installation.
b) Carefully open the instrument - lift off the instrument’s panel (pic. 2.1-3).
Pic. 2.1
Pic. 2.1----1111
Pic. 2.1Pic. 2.1
Pic. 2.1
Pic. 2.1----3333
Pic. 2.1Pic. 2.1
Pic. 2.1
Pic. 2.1----2222
Pic. 2.1 Pic. 2.1
4
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Copyr ight © 2018 CHD E lektroserv is.
TR2-KBD
2.2
2.2 MIDI
MIDI----IN
IN SOCKET
2.22.2
MIDIMIDI
SOCKET INSTALLATION
IN IN
SOCKETSOCKET
INSTALLATION
INSTALLATION INSTALLATION
MIDI Interface for Korg Trident Keyboard
Model 8-436 ver. 1.0
There are two possible ways to install the MIDI-IN DIN socket:
If you do no t want to mechanically damage the rear panel of th e instrument , take out the MIDI cable through
the slot on the left side of the keyboard and solder cable DIN connector on its end (see pic. 2.2-1).
It is better to place the MIDI-In connector on the rear panel of the instrument for easier operation. It is
necessary to drill three holes in the instrument panel however. Th e MIDI-In connector can be i nstalled near
the jack connectors (see pic. 2.2-2). The MIDI-In connector installation procedure is as follows:
Pic. 2.2
Pic. 2.2----1111
Pic. 2.2Pic. 2.2
Pic. 2.2
Pic. 2.2----2222
Pic. 2.2Pic. 2.2
a) Flip the front cover over and return it to its original closed position on top of the synth.
b) Drill three holes in the rear panel as shown on pic. 2.2-3. Work carefully so as to not drill th e parts inside the
instrument (pic. 2.2-4).
Pic. 2.2
Pic. 2.2----3333
Pic. 2.2Pic. 2.2
Pic. 2.2
Pic. 2.2----4444
Pic. 2.2Pic. 2.2
c) Clean the edge of the holes with small rasp (pic. 2.2-5). Also clean the holes from the inside after the
turning over the front cover.
d) Clean all iron sawdust and raspings from the inside of the instrum ents
Cle an all ir on saw dust and raspi ngs from the inside of th e instruments
Cle an all ir on saw dust and raspi ngs from the inside of th e instrumentsCle an all ir on saw dust and raspi ngs from the inside of th e instruments
, they can cause short circuits or
serious electrical damage if left in the instrument. Please clean the instrument carefully!
e) Get flat connector of MIDI cable through the hole in rear panel into the instrument (pic. 2.2-6).
f) Insert the DIN connector into hole in rear panel (pic. 2.2-7) and fix the connector to the panel. Use two
screws, nuts and washers - parts of the kit (pic. 2.2-8). Hold the nuts wi th help of p liers for example during the
fixing.
5
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Copyr ight © 2018 CHD E lektroserv is.
TR2-KBD
Pic. 2.2
Pic. 2.2----5555
Pic. 2.2Pic. 2.2
MIDI Interface for Korg Trident Keyboard
Pic. 2.2
Pic. 2.2----6666
Pic. 2.2Pic. 2.2
Model 8-436 ver. 1.0
Pic. 2.2
Pic. 2.2----7777
Pic. 2.2Pic. 2.2
Pic. 2.2
Pic. 2.2----8888
Pic. 2.2Pic. 2.2
g) You may also want to label the MIDI connector ("MIDI INPU T") using self-adhesive, for example.
Pic. 2.3
Pic. 2.3----1111
Pic. 2.3Pic. 2.3
2.3
2.3 FLAT CABLE MONTAGE
FLAT CABLE MONTAGE
2.32.3
FLAT CABLE MONTAGEFLAT CABLE MONTAGE
Flat cable (part of delivery) has 14-pin connector on one end and
free wires on the other end. Partial wires are numbered
sequentially from 1 to 14, wire Nr. 1 has different color. It is
necessary to solder these wires to instrument’s “Key Assigner“
board – to leads of processor IC1 (pic. 2.3-1).
The wires can be soldered to leads of IC1 directly (from top side)
but it can ev ocate a prob lems – IC1 is placed in socket which can
be damaged during soldering. Beter method is to solder the wires
to pads on bottom side of”„Key Assigner“ board:
a) Unscrew eight screws from “Key Assigner“ board (pic. 2.3-2).
Do not lose them. They will be used again after the cable
montage.
b) Flip the board bottom side to top (pic. 2.3-3). Be careful that
original bunched cables connected to the board are not damaged
– disconnect their connectors from the board if necessary.
6
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Copyr ight © 2018 CHD E lektroserv is.
TR2-KBD
Pic. 2.3
Pic. 2.3----2222
Pic. 2.3Pic. 2.3
MIDI Interface for Korg Trident Keyboard
Pic. 2.3
Pic. 2.3----3333
Pic. 2.3 Pic. 2.3
Model 8-436 ver. 1.0
c) Solder pads on bottom side of “Key Assigner“ board (KLM-300 / KLM-377) for partial wires of flat cable are
shown on pic. 2.3-4 and described in table below.
Pic. 2.3
Pic. 2.3----4444
Pic. 2.3Pic. 2.3
7
All ri ghts re served. No part of t his pub licati on may be r eproduced in any form with out the wri tten per miss ion of CHD Elektr oservis .
Copyr ight © 2018 CHD E lektroserv is.
TR2-KBD
MIDI Interface for Korg Trident Keyboard
Model 8-436 ver. 1.0
Table
Table –––– Solder pads on KLM
Solde r pads on KLM----300 / KLM
Table Table
Solde r pads on KLM Solde r pads on KLM
300 / KLM----377 board
300 / KLM300 / KLM
377 board
377 board377 board
Wire Nr. Signal Solder pad Pin of IC1 Nr. Remarks
1111
2222
3333 Address 0 P10 27
4444 Address 1 P11 28
5555 Address 2 P12 29
6666 Address 3 P13 30
7777 Data 5 P 25 36
8888 Data 4 P 24 35
9999 Data 3 P 23 24
10
10 Data 2 P 22 23
1010
11
11 Data 1 P 21 22
1111
12
12 Data 0 P 20 21
1212
13
13
1313
14
14
1414
+5V VCC 40
GND VSS 2 0
40
4040
27
2727
28
2828
29
2929
30
3030
36
3636
35
3535
24
2424
23
2323
22
2222
21
2121
20 both wires (13+14) are soldered to this pad
2020
both wires (1+2) are soldered to th is pad, wire
Nr. 1 has different color
Solder partial wires of flat cable to required pads on “Key Assigner“ board (pic. 2.3-5). Solder carefully so that
no sh ort connecti on occurs between solder pads. This can d isal lo w right function of the instrument. In extreme
case, some components on “Key Assigner“ board can be damaged!
Pic. 2.3
Pic. 2.3----5555
Pic. 2.3Pic. 2.3
8
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Copyr ight © 2018 CHD E lektroserv is.
TR2-KBD
MIDI Interface for Korg Trident Keyboard
Model 8-436 ver. 1.0
d) Flip “Key Assigner“ board back to its original position. Be sure that flat cable isn’t cl awed by the board – the
cable must go vi a slot between wood suppo rts in upper l eft corner of place for “K ey Assigner“ board (pic. 2.3-6,
2.3-7).
Pic. 2.3
Pic. 2.3----6666
Pic. 2.3Pic. 2.3
Pic. 2.3
Pic. 2.3----7777
Pic. 2.3 Pic. 2.3
e) Fit “Key Assigner“ board back to bottom part of the instrument with previously removed screws (pic. 2.3-8).
Pic. 2.3
Pic. 2.3----8888
Pic. 2.3Pic. 2.3
2.4
2.4 INTERFACE BOARD
INTERFACE BOARD INSTAL
2.42.4
INTERFACE BOARD INTERFACE BOARD
INSTALLATION
LATION
INSTALINSTAL
LATIONLATION
a) Cleanse (degrease) the part of rear panel inside of instrument to place there the interface board (pic. 2.4-1).
b) Remove the protective foil form the self-adhesive supports of the interface board (pi c. 2.4-2).
9
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Copyr ight © 2018 CHD E lektroserv is.
TR2-KBD
Pic. 2.4
Pic. 2.4----1111
Pic. 2.4Pic. 2.4
MIDI Interface for Korg Trident Keyboard
Pic. 2.4
Pic. 2.4----2222
Pic. 2.4 Pic. 2.4
Model 8-436 ver. 1.0
c) Apply the interface board to the part of the instrument’s panel so that connectors are on right side (pic. 2.4.-
3). Than fix the self-adhesive supports by pressing down.
d) Pu t two-pin connector o f MIDI cable (X 1 connector – see pic. 2) to plug on the interface’s board. Orientation
of the connector is unambiguously given by the connector locks (p ic. 2.4-4).
Pic. 2.4
Pic. 2.4----3333
Pic. 2.4Pic. 2.4
Pic. 2.4
Pic. 2.4----4444
Pic. 2.4 Pic. 2.4
Pic.
Pic. 2.4
2.4----5555
Pic. Pic.
2.42.4
e) Put the 14-pin connector of flat cable (X2 connector
– see pic. 2) to plug on the interface’s board.
Orientation of the connector is unambiguously given
by the connector lock (pic. 2.4-5).
10
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TR2-KBD
2.5
2.5 INSTRUMENT ASSEMBLY
INSTRUMENT ASSEMBLY
2.52.5
INSTRUMENT ASSEMBLYINSTRUMENT ASSEMBLY
MIDI Interface for Korg Trident Keyboard
Model 8-436 ver. 1.0
a) Turn over the front panel of the instrument.
b) Reattach the front panel to the sides of the instrument with si x screws (pi c. 2.5-1) and reattach six screws to
the rear side of the cover (pic. 2.5-2). This is the reverse procedure of that described in the chapter 2.1.
Pic.
Pic. 2.5
2.5 ----1111
Pic.Pic.
2.5 2.5
Pic. 2.5
Pic. 2.5----2222
Pic. 2.5 Pic. 2.5
The installation of the MIDI kit is now complete and the instrument is ready to communicate over the
MIDI. Please read carefully the user manual first.
Document :
8436_install_rev2
Manufacturer :
CHD Elektroservis
CHD Elektroservis
CHD ElektroservisCHD Elektroservis
Nad kundratkou 27, 19000 Praha 9, Czech Republic
info@chd-el.cz www.chd-el.cz
All ri ghts re served. No part of t his pub licati on may be r eproduced in any form with out the wri tten per miss ion of CHD Elektr oservis .
Copyr ight © 2018 CHD E lektroserv is.
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