User instructions for Kenton MIDI retrofit for

YAMAHA YP-40

These instructions are only for YP-40 MIDI retrofit kits produced after 1 November 2004 Firmware PF155130 or later
N.B. Different instructions apply to earlier Kenton YP-40 MIDI retrofit kits.

USING THE INTERFACE

Just play the YP-40 as normal. Any notes you play and their velocity, along with any operation of the sustain pedal will be transmitted on the selected MIDI channel to your receiving device. Program changes can also be sent from the keyboard in conjuction with the red push button see below. When you turn on the YP-40 for the very first time, it will be transmitting information on MIDI channel 1. If you want to change the transmit channel see below.
USING THE RED PUSH BUTTON TO SEND PROGRAM CHANGES
A short on the red push button enters program change mode. Any key then selects a program change which is transmitted to your receiving device, you are then automatically returned to playing mode. For example, a short press on the red push button followed by the bottom note on the keyboard will send program number 0 (or 1 if your receiving device numbers programs from rather than from 0 127). Whereas a short press on the red push button followed by middle C on the keyboard will send program number 32 (or 33 if your receiving device numbers programs from rather than from 0 127). It is not possible to send program numbers higher than 75 (76).
USING THE RED PUSH BUTTON TO SELECT THE TRANSMIT CHANNEL
Pressing and keeping the red push button pressed for about four seconds or more enters setup mode. After the four seconds you can release the button. Then press the appropriate key to select the MIDI channel you want to use, you are then automatically returned to playing mode. On the following page is a list of what each key will do if pressed during setup mode. The transmit channel is then stored for recall next time the YP-40 is turned on.
TRANSPOSE LEVER (The one already fitted to the YP-40)
When you use the transpose lever of the YP-40, the MIDI information sent to your receiving device will also be transposed by the same amount. Be aware however that this will also affect the program change and MIDI channel setting functions (using red push button). To avoid confusion, ensure that the transpose lever is in its central (nontransposed) position whenever you are going to press the red push button, or at least be mindful of its effect.
RESTORING FACTORY DEFAULT SETTINGS
If you press and hold the red push button while you turn the YP-40 on, the interface will be reset to its default settings
LIST OF KEYS USED IN SETUP MODE
E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C Not Used - - - <bottom note of keyboard> "" "" "" "" "" "" "" Transmit Channel 1 "" 2 "" 3 "" 4 "" 5 "" 6 "" 7 "" 8 "" "" 11 "" "" 14 "" 15 "" 16 Not Used - - "" "" "" "" "" "" "" "" < middle C > "" "" "" "" "" "" "" "" "" "" ""
No more notes used in setup mode from here to the top of the keyboard

SPECIFICATIONS

MIDI transmit only for notes #28 to #103 Velocity information also transmitted Program changes 0 to 75 (1 to 76) can be transmitted in conjunction with the red push button Sustain pedal information transmitted. MIDI channel number selectable and stored in non-volatile memory
GENERAL INFORMATION ABOUT MIDI CONNECTIONS
MIDI IN should be connected to a MIDI OUT or a MIDI THRU similarly MIDI OUT should be connected only to a MIDI IN and a MIDI THRU should also be connected only to a MIDI IN. MIDI OUT is the signal from the synthesizer (or drum machine etc.) that is to be sent to another instrument. MIDI IN is a received signal that contains MIDI information from another synth, and MIDI THRU is an exact copy of information arriving at the MIDI IN socket. This allows several instruments to be connected together. If you want to wire your own MIDI cables the following information may be useful: 1) Although a 5 pin connector is used, only two connections plus an earth connection are required. 2) If you look at the din plug from the wiring side you will see that the pins are numbered. Now with the pins uppermost and numbering from left to right (or clockwise) these are numbered 1 - 4 - 2 - 5 - 3. 3) The pins numbered 1 & 3 are not used. (the two outside ones) 4) The screen (earth) of your cable is connected to pin 2 (centre pin) 5) Pin 4 of one plug should be connected to pin 4 of the other 6) Pin 5 of one plug should be connected to pin 5 of the other 7) You should now have a working MIDI lead 8) It may be helpful to label one end of the cable MIDI IN & the other end MIDI OUT, to avoid confusion.

WARRANTY

All Kenton MIDI Kits come with a 12 month (from purchase date) back to base warranty, (i.e. customer must arrange and pay for carriage to and from Kenton Electronics).
Copyright (c) KENTON Electronics & John Price 1986-2004 E. & O. E.
Brookfarm House, Station Road, South Wimbledon, London, SW19 2LP, UK Tel: +44 (0)9200 Fax: +44 (0)9300 www.kenton.co.uk

INSTRUCTIONS FOR MIDI INTERFACE YAMAHA YP-40
MIDI - - Firstly, a few words about MIDI. MIDI is an acronym of Musical Instrument Digital Interface. It is a system for transferring information between synths or other equipment. The information is sent in digital format using codes laid down by the international MIDI committee.
USING THE INTERFACE - - When you first turn on the YP10, it will be transmitting MIDI information on channel 1. It is possible to change this by using the mode change push button, which also enables you to send patch changes via MIDI.
MODE CHANGE PUSH BUTTON The push button has two functions :1) Pressing once only enters patch change mode. Any key then selects a patch change which is sent through MIDI. You are then automatically returned to playing mode. 2) Pressing once and holding for a couple of seconds enters program mode. This enables you to program in the transmit channel number. You are then automatically returned to playing mode. On the following page is a list of what each key pressed during program mode. will do if
E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C
Not used (BOTTOM E) Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Transmit channel 1 " " 2 " " 3 " " 4 " " 5 " " 6 " " 7 " " 8 " " 9 " " 10 " " 11 " " 12 " " 13 " " 14 " " 15 " " 16 Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used

( MIDDLE C )

No notes used between here and top G
A few words about MIDI connectors
MIDI IN should be connected to a MIDI OUT or a MIDI THRU similarly MIDI OUT should be connected only to a MIDI IN and a MIDI THRU should also be connected only to a MIDI IN.
MIDI OUT is the signal from the synthesiser (or drum machine etc.) that is to be sent to another instrument. MIDI IN is a received signal that contains MIDI information from another synth, and MIDI THRU is an exact copy of information arriving at the MIDI IN socket. This allows several instruments to be connected together.
If you want to wire your own MIDI cables the following information may be useful. 1) Although a 5 pin connector is used, only two connections plus an earth connection are required. 2) If you look at the din plug from the wiring side you will see that the pins are numbered. From left to right (or clockwise) these are 1 - 4 - 2 - 5 - 3. 3) The pins numbered 1 & 3 are not used. 4) The screen (earth) is connected to pin 2 (centre pin) 5) Pin 4 of one plug should be connected to pin 4 of the other 6) Pin 5 of one plug should be connected to pin 5 of the other 7) You should now have a working MIDI lead 8) It is preferable to label one end of the cable MIDI IN & the other end MIDI OUT, to avoid confusion.
Copyright (c) John Price 1986-2001 Kenton Electronics Brookfarm House Station Road South Wimbledon London SW19 2LP UK Tel +44 (0)9200 Fax +44 (0)9300 www.kenton.co.uk YP404001/9110121625/JKP