CHD Elektroservis SY2-KBD User manual

SY2
SY2SY2
SY2-
--
-KBD
KBDKBD
KBD
MIDI Interface for
MIDI Interface forMIDI Interface for
MIDI Interface for
Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1)
1)1)
1)
Keyboard Control
Keyboard ControlKeyboard Control
Keyboard Control
Model 8
Model 8Model 8
Model 8-
--
-439
439439
439
Version 1.0
Version 1.0Version 1.0
Version 1.0
Installation Manual
Installation ManualInstallation Manual
Installation Manual
© 2019 CHD Elektroservis
© 2019 CHD Elektroservis© 2019 CHD Elektroservis
© 2019 CHD Elektroservis

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
2
2
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2
Contents:
Contents:Contents:
Contents:
1
11
1
GENERAL INFORMATION
GENERAL INFORMATIONGENERAL INFORMATION
GENERAL INFORMATION ................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................ 3
33
3
1.1 MIDI INTERFACE KIT PARTS............................................................................................................................. 3
2
22
2 MIDI INTERFACE INSTALLATION
MIDI INTERFACE INSTALLATIONMIDI INTERFACE INSTALLATION
MIDI INTERFACE INSTALLATION ................................
................................................................
................................................................
................................................................
................................................................
................................................................
.......................................................
..............................................
....................... 4
44
4
2.1 OPEN THE INSTRUMENT................................................................................................................................. 4
2.2 DRILLING OF HOLES FOR MIDI SOCKETS............................................................................................................ 5
2.3 MIDI SOCKETS MOUNTING............................................................................................................................. 5
2.4 DRILLING OF HOLES FOR BUTTON AND INDICATION LED..................................................................................... 6
2.5 BUTTON AND INDICATION LED MOUNTING...................................................................................................... 6
2.6 POWER SUPPLY CABLE MOUNTING.................................................................................................................. 7
2.7 KEYBOARD CONTROL SIGNALS CABLE MOUNTING............................................................................................. 8
2.8 THE INTERFACE BOARD MOUNTING .............................................................................................................. 10
2.9 INTERFACE ADJUSTMENT ............................................................................................................................. 11
2.10 FINISHING OF THE INSTALLATION.................................................................................................................. 12
3
33
3 INSTALLATION TIPS
INSTALLATION TIPSINSTALLATION TIPS
INSTALLATION TIPS................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
......................................
............
...... 13
1313
13
3.1 MIDI – THRU/OUT OUTPUT .......................................................................................................................... 13
3.2 RESET BUTTON AND INDICATION LED ............................................................................................................ 13
4
44
4 APPENDIX
APPENDIXAPPENDIX
APPENDIX................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
...................................................
......................................
................... 14
1414
14

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
3
3
3
3
1
11
1
GENERAL INFORMATION GENERAL INFORMATIONGENERAL INFORMATION
GENERAL INFORMATION
Figure 1.1
Figure 1.1 Figure 1.1
Figure 1.1 –
––
– Connection to instrument circuits
Connection to instrument circuits Connection to instrument circuits
Connection to instrument circuits
SY2-KBD MIDI interface controls VCO and GATE
generator of the Yamaha SY-1 / SY-2 synthesizer.
Simplified block schematics of the interface installation
in the instrument shows fig. 1.1.
The interface board is the same for both SY-1 and SY-2
instruments. This manual describes only installation into
installation into installation into
installation into
SY
SYSY
SY-
--
-2
22
2. SY-1 is electrically the same but mechanical
construction is a little different from SY-2. So you have
to adapt the montage of MIDI sockets and LED / Reset
button and also placement of the interface board.
Wiring of the interface to instrument’s keyboard circuit
and to SM-1 board remain the same for both SY-1 and
SY-2 instruments (see appendix).
Figure 1.2
Figure 1.2 Figure 1.2
Figure 1.2 –
––
– Identification labels
Identification labels Identification labels
Identification labels
The interface firmware can be revised. Actual version of the
firmware is printed on the identification label on the interface’s
processor (see fig. 1.2). It is also possible to read the actual
version of firmware from the interface by MIDI System Exclusive
message.
1.1
1.11.1
1.1
MIDI INTERFACE KIT PARTS MIDI INTERFACE KIT PARTSMIDI INTERFACE KIT PARTS
MIDI INTERFACE KIT PARTS
MIDI interface kit contents all necessary parts for installation
incl. all support and coupling elements. The delivery also
includes both installation and operation manuals in printed
form. Please check if the delivery is complete before the installation (see fig. 1.1.1).
Figure 1.1.1
Figure 1.1.1 Figure 1.1.1
Figure 1.1.1 –
––
– Parts of the interface kit
Parts of the interface kit Parts of the interface kit
Parts of the interface kit
The SY2-KBD interface kit
delivery contents:
(1) MIDI Interface board
(2) 2x DIN-5 socket with cable
(3) Bunched cables for power
supply
(4) Bunched cables with LED
(5) Bunched cables of
keyboard control signals
(6) Next parts and coupling
elements (button, LED
holder, screws, nuts,
washers, insulation tubes
and tightening strips)
(7) Owner’s and Installation
manuals in printed form

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
4
44
4
2
22
2
MIDI INTERFACE MIDI INTERFACE MIDI INTERFACE
MIDI INTERFACE INSTALLATION
INSTALLATIONINSTALLATION
INSTALLATION
Mounting the interface in the Yamaha SY-2 synthesizer is very easy. If you follow the instructions from this
manual, there should be no major problems during the installation. The interface installation procedure is
thoroughly described in the following chapters. Please follow these instructions accurately to avoid any damage
of the instrument.
Attention! Disconnect the instrument form the mains prior to the installation. There is a risk of the
Attention! Disconnect the instrument form the mains prior to the installation. There is a risk of the Attention! Disconnect the instrument form the mains prior to the installation. There is a risk of the
Attention! Disconnect the instrument form the mains prior to the installation. There is a risk of the
electric shock!
electric shock!electric shock!
electric shock!
Attention! Observe precaution
Attention! Observe precautionAttention! Observe precaution
Attention! Observe precautions for handling electrostatic discharge sensitive devices!
s for handling electrostatic discharge sensitive devices!s for handling electrostatic discharge sensitive devices!
s for handling electrostatic discharge sensitive devices!
The
The The
The manufacturer
manufacturer manufacturer
manufacturer is not responsible for any eventual mechanical or electrical damage of the Yamaha
is not responsible for any eventual mechanical or electrical damage of the Yamaha is not responsible for any eventual mechanical or electrical damage of the Yamaha
is not responsible for any eventual mechanical or electrical damage of the Yamaha
instrument caused by the infringement of the described installation procedure or by care
instrument caused by the infringement of the described installation procedure or by careinstrument caused by the infringement of the described installation procedure or by care
instrument caused by the infringement of the described installation procedure or by careless
less less
less
manipulation during the installation of the MIDI interface!
manipulation during the installation of the MIDI interface!manipulation during the installation of the MIDI interface!
manipulation during the installation of the MIDI interface!
It is recommended to calibrate the instrument accordingly to the instructions in service manual of the
It is recommended to calibrate the instrument accordingly to the instructions in service manual of the It is recommended to calibrate the instrument accordingly to the instructions in service manual of the
It is recommended to calibrate the instrument accordingly to the instructions in service manual of the
instrument prior the interface installation. This ensures trouble
instrument prior the interface installation. This ensures troubleinstrument prior the interface installation. This ensures trouble
instrument prior the interface installation. This ensures trouble-
--
-free operation of th
free operation of thfree operation of th
free operation of the interface.
e interface.e interface.
e interface.
2.1
2.12.1
2.1
OPEN THE INSTRUMENT OPEN THE INSTRUMENTOPEN THE INSTRUMENT
OPEN THE INSTRUMENT
a) Unscrew two screws on the bottom side of the instrument (fig. 2.1.1). Keep the screws and washers - they
will be used again after the MIDI kit installation is finished. Then place the instrument to normal position.
b) Lift top panel of the instrument up and then flip it back. Carefully remove plastic cover from instrument’s
keyboard switches (fig. 2.1.2) so that it is not damaged during disassembly.
Figure 2.1.1
Figure 2.1.1Figure 2.1.1
Figure 2.1.1
Figure 2.1.2 Figure 2.1.2Figure 2.1.2
Figure 2.1.2
Figure. 2.1.3
Figure. 2.1.3Figure. 2.1.3
Figure. 2.1.3

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
5
5
5
5
c) All instrument’s parts and boards needed for the interface installation are now accessible (fig. 2.1.3).
2.2
2.22.2
2.2
DRILLING OF HOLES FOR MIDI SOCKETS DRILLING OF HOLES FOR MIDI SOCKETSDRILLING OF HOLES FOR MIDI SOCKETS
DRILLING OF HOLES FOR MIDI SOCKETS
The interface has both MIDI input and output. Only MIDI input is necessary for the basic interface operation.
MIDI output has not to be installed – see chapter 3.1. Nevertheless, having both MIDI input and output (MIDI-IN
and MIDI-THRU/OUT sockets) is more convenient for an easy integration in a more advanced MIDI system.
a) The suitable place for the MIDI sockets montage is on the right side of the metal panel on rear side of the
instrument (fig. 2.2.1). You have to drill six holes to the panel.
b) Drill two holes with diameter 16 mm and four holes with diameter 3,2 mm to the metal panel as shown on
fig. 2.2.2 (all dimensions are in mm). Use sharp drills and work carefully
work carefullywork carefully
work carefully so that the cover is not scratched and
other parts and cables inside the instrument are not damaged
are not damaged are not damaged
are not damaged
1
11
1
!
Figure 2.2.1
Figure 2.2.1Figure 2.2.1
Figure 2.2.1
Figure 2.2.2 Figure 2.2.2Figure 2.2.2
Figure 2.2.2
c) Clean the edge of the holes with small rasp or tip of bigger drill from both sides of the panel after the holes
are drilled.
c) Clean all iron sawdust and raspings from the inside of the instrument
Clean all iron sawdust and raspings from the inside of the instrumentClean all iron sawdust and raspings from the inside of the instrument
Clean all iron sawdust and raspings from the inside of the instrument, they can cause short circuits or serious
electrical damage if left inside the instrument. Please clean the instrument carefully!
2.3
2.32.3
2.3
MIDI SOCKETS MOUNTING MIDI SOCKETS MOUNTINGMIDI SOCKETS MOUNTING
MIDI SOCKETS MOUNTING
a) Pull flat connectors of MIDI cables (from the interface accessory) through 16 mm holes in the metal panel
from outer side and insert DIN sockets into the holes. Both MIDI cables are identical and can be swapped.
Figure 2.3.1
Figure 2.3.1 Figure 2.3.1
Figure 2.3.1
Figure 2.3.2 Figure 2.3.2 Figure 2.3.2
Figure 2.3.2
1
If you want to be sure that the instrument parts will not be damaged during the drilling, you can remove the switch and the c onnectors from the
panel and then you can remove the whole met al panel from the instrument. Now, it is allowed to drill the panel outside the instrument. After all
holes are drilled and cleaned, the panel can be placed back to the instrument.

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
6
6
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b) Fix DIN sockets to the drilled holes using screws, nuts and tooth-lock washers from the interface accessory
(fig. 2.3.1).
c) It is recommended to label the DIN sockets ("MIDI IN", "MIDI THRU/OUT" for example) with self-adhesive foil
glued near the sockets (fig. 2.3.2).
2.4
2.42.4
2.4
DRILLING OF HOLES FOR BUTTON AND INDICATION LED DRILLING OF HOLES FOR BUTTON AND INDICATION LEDDRILLING OF HOLES FOR BUTTON AND INDICATION LED
DRILLING OF HOLES FOR BUTTON AND INDICATION LED
Figure 2.4.1
Figure 2.4.1Figure 2.4.1
Figure 2.4.1
There are two control elements on the interface –
Reset button and bi-color LED. They are not necessary
for the interface operation, so they need not to be
installed (if you prefer to maintain the vintage status of
the instrument) – see chapter 3.2. Nevertheless having
both of them installed is more convenient for easier
device control.
a) If you decide to install the LED and the button, the
suitable place for them is on the right side of the top
panel of the instrument (fig. 2.4.1). In that case, you
have to drill two holes in the panel as shown on fig.
2.4.2 (all dimensions are in mm).
Figure 2.4.2
Figure 2.4.2Figure 2.4.2
Figure 2.4.2
a) Drill one hole with diameter 12 mm (for Reset button) and one hole with diameter 8 mm (for indication LED)
to the panel – see pic. 2.4.2. Use sharp drills and work very carefully
work very carefullywork very carefully
work very carefully (do not press on the drill) so that the
instrument's cover is not scratched and edges of the holes are not chipped
edges of the holes are not chippededges of the holes are not chipped
edges of the holes are not chipped during the drilling!
b) Clean the edge of all holes with small rasp or with point of bigger drill after the holes are drilled. Work very
carefully again. Clean all sawdust and raspings from the inside of the instrument.
2.5
2.52.5
2.5
BUTTON AND INDICATION LED MOUNTING BUTTON AND INDICATION LED MOUNTINGBUTTON AND INDICATION LED MOUNTING
BUTTON AND INDICATION LED MOUNTING
The LED and Reset button cable from the interface accessory is fitted with 4-pin flat connector (fig. 2.5.1). Two
wires outgoing from this connector must be soldered to the button after it is fitted to instrument’s panel.
a) Pull the LED (on cable from the interface accessory) through the 8 mm hole in the instrument’s panel from
the inner side and insert it into the LED holder from interface accessory (fig. 2.5.2).
b) Insert the LED holder to the hole and push it untill collar of the holder reaches the panel surface (fig. 2.5.3).

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
7
7
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7
Figure 2.5.1
Figure 2.5.1Figure 2.5.1
Figure 2.5.1
c) Insert the Reset button from interface accessory into the 12 mm hole in the instrument’s panel from the
outer side and push it untill collar of the button reaches the panel surface (fig. 2.5.3).
Figure 2.5.2
Figure 2.5.2 Figure 2.5.2
Figure 2.5.2
Figure 2.5.3 Figure 2.5.3 Figure 2.5.3
Figure 2.5.3
d) Place heat-shrink insulation tubes φ 2 mm (length 10 mm, from the interface accessory) on yellow wire Nr. 2
and black wire Nr. 1 of the bunched cables (fig. 2.5.4).
e) Solder the yellow (+V) and black (BTN) wires to soldering lugs of the Reset button. Then isolate the
connections with the insulation tubes and heat them (with a hot-flue pistol for example) until they shrink tightly
to the wires (fig. 2.5.5). Work carefully – the soldering lugs are less accessible.
Figure 2.5.4
Figure 2.5.4Figure 2.5.4
Figure 2.5.4
Figure 2.5.5 Figure 2.5.5Figure 2.5.5
Figure 2.5.5
2.6
2.62.6
2.6
POWER SUPPLY CABLE MOUNTING POWER SUPPLY CABLE MOUNTINGPOWER SUPPLY CABLE MOUNTING
POWER SUPPLY CABLE MOUNTING
The power supply cable from the interface accessory is fitted with 3-pin flat connector (fig. 2.6.1). Wires
outgoing from this connector must be connected to several places at the instrument’s SM-1 board (fig. 2.6.2).
Figure 2.6.1
Figure 2.6.1Figure 2.6.1
Figure 2.6.1
a) Solder the red wire Nr. 3 “+15V“ to “+15” labeled pad on the SM-1 instrument’s board (fig. 2.6.3 and fig. 4-1).
A thick brown wire of original bunched cables is already soldered here.

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
8
8
8
8
Figure 2.6.2
Figure 2.6.2Figure 2.6.2
Figure 2.6.2
b) Solder the black wire Nr. 2 “GND“ to “E” labeled pad on the SM-1 instrument’s board (fig. 2.6.4 and fig. 4-1).
A thick black wire of original bunched cables is already soldered here.
c) Solder the blue wire Nr. 1 “-15V“ to “-15” labeled pad on the SM-1 instrument’s power supply board (fig.
2.6.4 and fig. 4-1). Two yellow wires of the original bunched cables are already soldered here.
Figure 2.6.3
Figure 2.6.3Figure 2.6.3
Figure 2.6.3
Figure 2.6.4 Figure 2.6.4Figure 2.6.4
Figure 2.6.4
2.7
2.72.7
2.7
KEYBOARD CONTROL SIGNALS CABLE MOUNTING KEYBOARD CONTROL SIGNALS CABLE MOUNTINGKEYBOARD CONTROL SIGNALS CABLE MOUNTING
KEYBOARD CONTROL SIGNALS CABLE MOUNTING
The keyboard control signals cable from the interface accessory is fitted with 4-pin flat connector (fig. 2.7.1).
Wires outgoing from this connector must be connected to the instrument’s keyboard and between the
instrument’s keyboard and SM-1 board (fig. 2.7.2).
Figure 2.7.1
Figure 2.7.1Figure 2.7.1
Figure 2.7.1
2
3
4
1
2
3
4
1To X4 plug
on the interface
board
Nr. 1 - green (IN)
To instrument's
keyboard
Nr. 2 - yellow (OUT)
Nr. 3 - red (REF)
Nr. 4 - black (GND)
a) Unsolder the blue wire (hot wire of shielded blue cable) from soldering pad on the instrument’s keyboard
(fig. 2.7.3 and fig. 4-2).
b) Place heat-shrink insulation tube
φ 2 mm (length 25 mm, from the interface accessory) on blue wire Nr. 2
“OUT” of the keyboard control signals cable and solder the blue wire to blue wire freed from the soldering pad
(fig. 2.7.4 and fig. 4-2).

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
9
9
9
9
Figure. 2.7.2
Figure. 2.7.2Figure. 2.7.2
Figure. 2.7.2
Figure 2.7.3
Figure 2.7.3Figure 2.7.3
Figure 2.7.3
Figure 2.7.4 Figure 2.7.4Figure 2.7.4
Figure 2.7.4
c) Isolate the connection with the insulation tube and heat it (with a hot-flue pistol for example) until it shrinks
tightly to the cables.
d) Solder red wire Nr. 1 “IN” of the interface cable to the soldering pad where the blue wire was connected
previously (fig. 2.7.5 and fig. 4-2).
e) Solder black wire Nr. 4 “GND“ of the interface cable to soldering pad of the instrument’s keyboard – to pad
where a black wire and shielding of the blue cable are already soldered (fig. 2.7.5 and fig. 4-2).
f) Solder green wire Nr. 3 “REF“ of the interface cable to lug on the instrument’s keyboard where a green wire is
already soldered (fig. 2.7.6 and fig. 4-2).
Figure 2.7.5
Figure 2.7.5Figure 2.7.5
Figure 2.7.5
Figure 2 Figure 2Figure 2
Figure 2.7.6
.7.6.7.6
.7.6

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
10
1010
10
2.8
2.82.8
2.8
THE INTERFACE BOARD MOUNTING THE INTERFACE BOARD MOUNTINGTHE INTERFACE BOARD MOUNTING
THE INTERFACE BOARD MOUNTING
a) The interface board will be placed on the metal cover on the right side, inside the instrument – near the right
side-board (fig. 2.8.1).
Figure. 2.8.1
Figure. 2.8.1Figure. 2.8.1
Figure. 2.8.1
b) Clean the part of rear panel inside of the instrument for the interface board placement (fig. 2.8.1). Use a
chemical cleaner to remove all dirt and grease.
c) Remove the protective foil form the self-adhesive supports of the interface board (fig. 2.8.2).
d) Attach the interface board to the metal cover so that the board side with two connectors X4 (“KBD”) and X5
(“PWR”) points to the back as shown on the figure 2.8.3. Then fix the self-adhesive supports by pressing down
to the metal cover.
Figure 2.8.2
Figure 2.8.2Figure 2.8.2
Figure 2.8.2
Figure 2.8.3 Figure 2.8.3 Figure 2.8.3
Figure 2.8.3
e) Plug the 3-pin connector of the bunched cables lead from the power supply board to X5 (“PWR”) plug head
on the interface board. Orientation of the connector is given by the connector lock so it cannot be plugged
reversely (fig. 2.8.4).
f) Plug 4-pin connector of the bunched cables lead from keyboard to X4 (“KBD”) plug head on the interface
board. Orientation of the connector is given by the connector lock again (fig. 2.8.4).
g) Plug two 3-pin connectors of the MIDI cables to X1 (“I”) and X2 (“O”) plug heads on the interface board.
Orientation of the connectors is given by the connector lock again but be sure that the connectors are not
exchanged: MIDI input must be plugged to X1 head and MIDI output to X2 head (fig. 2.8.4).
h) Plug the 4-pin connector of the bunched cables leads from Reset button and LED to X3 (“CTRL”) plug head on
the interface board. Orientation of the connector is given by the connector lock again (fig. 2.8.4).
i) Align newly installed MIDI cables and fix them to the original bunched cables with help of three original cable
holders. Fix other interface cables together with four plastic stripes from the interface accessory (fig. 2.8.5).

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
11
1111
11
Figure 2.8.4
Figure 2.8.4Figure 2.8.4
Figure 2.8.4
Figure 2.8.5 Figure 2.8.5 Figure 2.8.5
Figure 2.8.5
2.9
2.92.9
2.9
INTERFACE ADJUSTMENT INTERFACE ADJUSTMENTINTERFACE ADJUSTMENT
INTERFACE ADJUSTMENT
Figure 2.9.1
Figure 2.9.1Figure 2.9.1
Figure 2.9.1
There are two variable resistors on the interface board
labeled “OFFSET” and “RANGE” (fig. 2.9.1). They must be
adjusted before the interface is used. Adjustment
procedure is following
2
22
2
:
a) Connect MIDI output of your MIDI master keyboard (or
PC / sequencer / DAW) to MIDI input of the interface
3
33
3
.
b) Connect audio output of the instrument to a tuner or
to a frequency meter.
c) Set all controllers on the instrument’s panels to a clear
sound without any modulation.
Rear panel:
• OUTPUT OUTPUTOUTPUT
OUTPUT switch Æ to HIGH
HIGHHIGH
HIGH (left position)
Top panel:
• PITCH
PITCHPITCH
PITCH-
--
-BEND
BENDBEND
BEND and PORT
PORTPORT
PORTAMENTO
AMENTOAMENTO
AMENTO switches Æ both off
offoff
off (upper position)
• Tone selector switches Æ FLUTE
FLUTEFLUTE
FLUTE / CLARINET
CLARINETCLARINET
CLARINET tone on
onon
on (lower position), all others off
offoff
off (upper position)
• Tone side selector Æ to SIDE I SIDE ISIDE I
SIDE I (upper position)
• TRANSPOSITION
TRANSPOSITIONTRANSPOSITION
TRANSPOSITION selector Æ NORMAL
NORMALNORMAL
NORMAL switch on
onon
on (lower position)
• TOUC TOUCTOUC
TOUCH CONTROL
H CONTROLH CONTROL
H CONTROL switches Æ all switches off
offoff
off (upper position)
• FOOT CONTROL FOOT CONTROLFOOT CONTROL
FOOT CONTROL switches Æ both switches off
offoff
off (upper position)
• VOLUME VOLUMEVOLUME
VOLUME knob Æ to middle position
Left panel:
• TUNE
TUNETUNE
TUNE knob Æ to middle position
• PULSE WIDTH PULSE WIDTHPULSE WIDTH
PULSE WIDTH knob Æ maximum
maximummaximum
maximum (fully clockwise)
• VIBRATO VIBRATO VIBRATO
VIBRATO -
--
- DEPTH
DEPTH DEPTH
DEPTH knob Æ minimum
minimumminimum
minimum (fully counterclockwise)
• ENVELOPE
ENVELOPEENVELOPE
ENVELOPE sliders Æ ATTACK
ATTACKATTACK
ATTACK, DECAY
DECAYDECAY
DECAY, RELEASE
RELEASERELEASE
RELEASE to SHORT
SHORTSHORT
SHORT (lower position) / SUSTAIN
SUSTAINSUSTAIN
SUSTAIN to MAX
MAXMAX
MAX (upper position)
• FILTER FILTERFILTER
FILTER sliders Æ LOW PASS FREQUENCY
LOW PASS FREQUENCYLOW PASS FREQUENCY
LOW PASS FREQUENCY to HIGH
HIGHHIGH
HIGH (upper position) / HIGH PASS FREQUENCY
HIGH PASS FREQUENCYHIGH PASS FREQUENCY
HIGH PASS FREQUENCY to LOW
LOWLOW
LOW (lower
position) / LOW PASS
LOW PASS LOW PASS
LOW PASS RESONANCE
RESONANCERESONANCE
RESONANCE and HIGH PASS RESONANCE
HIGH PASS RESONANCEHIGH PASS RESONANCE
HIGH PASS RESONANCE to MIN
MINMIN
MIN (lower position)
2
It is suppossed that the interface is in "Factory Reset" status before the adjustment procedure. If it is not, send the F0 00 20 21 7F 52 50 03 7F 5C
F0 00 20 21 7F 52 50 03 7F 5C F0 00 20 21 7F 52 50 03 7F 5C
F0 00 20 21 7F 52 50 03 7F 5C
F7 [hex]
F7 [hex]F7 [hex]
F7 [hex] SysEx message to the intarface first.
3
Set transmitting MIDI Channel to number 1 on the master keyboard.

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
12
1212
12
Positions of other controllers on instrument’s panels are not significant.
d) Plug instrument's power supply cable to a mains socket and switch the instrument on by main switch on right
panel. Atten
AttenAtten
Attention
tion tion
tion -
--
- work very carefully during whole adjustment procedure
work very carefully during whole adjustment procedure work very carefully during whole adjustment procedure
work very carefully during whole adjustment procedure -
--
- there is a risk of electric shock!
there is a risk of electric shock! there is a risk of electric shock!
there is a risk of electric shock!
e) Now, the interface is in "Stand-by" mode - the interface’s indication LED is off. If not, press the "RESET"
button of the interface.
f) Wait a few minutes
Wait a few minutesWait a few minutes
Wait a few minutes to stabilize the temperature of all instrument circuits.
g) Measure the voltage between pins of the "TP" jumper head (fig. 2.9.1) with a quality digital multimeter. It
should be zero volts exactly. If it is not, adjust it with "OFFSET” variable resistor on the interface board (fig.
2.9.1).
h) Press the highest C key on the instrument’s keyboard - indication bi-color LED remains off.
i) Measure the output tone frequency by the tuner (frequency meter). It should be 1046,5 Hz approx.
Remember the measured tone frequency. Then release the highest C key.
j) Press the C4 key on the master keyboard (i.e. send MIDI Note Nr. 96 to the interface) and hold it. The
indication LED will light in green.
k) Check the output tone frequency by the tuner (frequency meter) again. It must be the same as the frequency
measured in paragraph i). If it is not, adjust it with "RANGE” variable resistor on the interface board (fig. 2.9.1).
l) Release the C4 key on the master keyboard. Switch the instrument off and disconnect the power s
disconnect the power sdisconnect the power s
disconnect the power supply cable
upply cable upply cable
upply cable
from mains socket
from mains socketfrom mains socket
from mains socket.
2.10
2.102.10
2.10
FINISHING OF THE INSTALLATION FINISHING OF THE INSTALLATIONFINISHING OF THE INSTALLATION
FINISHING OF THE INSTALLATION
a) Place the plastic cover back over the instrument’s keyboard switches (fig. 2.10.1).
b) Close the instrument - flip top panel of the instrument back to its original position (fig. 2.10.1).
c) Fix the panel to the instrument with original two screws and washers from bottom of the instrument (fig.
2.10.2).
Figure 2.10.1
Figure 2.10.1 Figure 2.10.1
Figure 2.10.1
Figure 2.10.2 Figure 2.10.2 Figure 2.10.2
Figure 2.10.2
The installation of the MIDI interface kit is now finished and the Yamaha SY-2 instrument is prepared for MIDI
communication.
Please read carefully user manual of the interface before usage of modified instrument.
Please read carefully user manual of the interface before usage of modified instrument.Please read carefully user manual of the interface before usage of modified instrument.
Please read carefully user manual of the interface before usage of modified instrument.

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
13
1313
13
3
33
3
INSTALLATION TIPS INSTALLATION TIPSINSTALLATION TIPS
INSTALLATION TIPS
3.1
3.13.1
3.1
MIDI MIDI MIDI
MIDI –
––
– THRU/OUT OUTPUT
THRU/OUT OUTPUT THRU/OUT OUTPUT
THRU/OUT OUTPUT
Figure 3.1
Figure 3.1Figure 3.1
Figure 3.1
SY2-KBD interface has both MIDI input and output.
However, only MIDI input is necessary for basic
operation of the interface (i.e controlling the
instrument by MIDI commands). MIDI THRU/OUT
output connector need not to be installed at all. If you
don’t require transfer of MIDI data to another MIDI
devices (THRU function ) or reverse communication of
the interface with host system (OUT function). In such
case, X2 connector (labeled “O
OO
O”) on the interface board
will remain unused (see pic. 3.1).
3.2
3.23.2
3.2
RESET BUTTON AND INDICATION LED RESET BUTTON AND INDICATION LEDRESET BUTTON AND INDICATION LED
RESET BUTTON AND INDICATION LED
Installation of the Reset button and indication LED isn’t necessary as well. You don´t need to install this
bunched cables if you don’t want to damage the instrument’s panel by drilling. In such case, X3 connector
(labeled “CTRL
CTRLCTRL
CTRL”) will remain unused (see fig. 3.1).
It is also possible to install only the indication LED on instrument’s panel. In such case, cut-off yellow and black
wires from the bunched cables as shown on fig. 3.2).
If the Reset button is not installed, the interface operation is unaffected. The only limitation is that the reset of
the interface can be done only by turning the instrument off and on or by MIDI commands sent to the interface
(see user manual of the interface).
Figure 3.2
Figure 3.2Figure 3.2
Figure 3.2

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
1
4
141
4
14
4
44
4
APPENDIX APPENDIXAPPENDIX
APPENDIX
Figure. 4.1
Figure. 4.1 Figure. 4.1
Figure. 4.1 –
––
– Pads on SM
Pads on SM Pads on SM
Pads on SM-
--
-1 board (both SY
1 board (both SY1 board (both SY
1 board (both SY-
--
-1 and SY
1 and SY1 and SY
1 and SY-
--
-2 instrumen
2 instrumen2 instrumen
2 instruments)
ts)ts)
ts)
Figure. 4.2
Figure. 4.2 Figure. 4.2
Figure. 4.2 –
––
– Manual Keyboard Switches
Manual Keyboard Switches Manual Keyboard Switches
Manual Keyboard Switches –
––
– KM block (both SY
KM block (both SY KM block (both SY
KM block (both SY-
--
-1 and SY
1 and SY1 and SY
1 and SY-
--
-2 instruments)
2 instruments)2 instruments)
2 instruments)

Yamaha SY
Yamaha SYYamaha SY
Yamaha SY-
--
-2 (SY
2 (SY2 (SY
2 (SY-
--
-1) MIDI Interface
1) MIDI Interface 1) MIDI Interface
1) MIDI Interface
SY2
SY2 SY2
SY2-
--
-KBD
KBDKBD
KBD
Installation Manual Installation ManualInstallation Manual
Installation Manual
Model 8
Model 8Model 8
Model 8-
--
-439 / v. 1.00
439 / v. 1.00439 / v. 1.00
439 / v. 1.00
Copyright © 2019 CHD Elektroservis. All rights reserved.
No part of this publication may be reproduced in any form without the written permission of CHD Elektroservis.
15
1515
15
Figure. 4.3
Figure. 4.3 Figure. 4.3
Figure. 4.3 –
––
– Interface board installed in SY
Interface board installed in SY Interface board installed in SY
Interface board installed in SY-
--
-2 instrument
2 instrument2 instrument
2 instrument
Figure. 4.4
Figure. 4.4 Figure. 4.4
Figure. 4.4 –
––
– LED and button installed in SY
LED and button installed in SY LED and button installed in SY
LED and button installed in SY -
--
-2 instrument
2 instrument2 instrument
2 instrument
This manual in PDF form
This manual in PDF formThis manual in PDF form
This manual in PDF form is available at manufacturer’s web pages.
is available at manufacturer’s web pages. is available at manufacturer’s web pages.
is available at manufacturer’s web pages.
YAMAHA SY-2 (SY-1) MIDI Interface
Model SY2-KBD, Nr. 8-439, ver. 1.00
Document: 843910_instal
Manufacturer: CHD Elektroservis, Czech Republic
www.chd-el.cz [e-mail]