CLEF Owners Manual
Contents
1. It is recommended this item remain OFF all zeros The Mute feature allows the user to taper the volume of the MIDI sequence data between 1 and 16 steps at start and end of file The taper step is enabled with the LEFT button and the step rate position is incremented with the RIGHT menu button This is a feature intended for audio accompaniment and does not work well for chime volume control The fourth item is the Repeat function It is recommended this item remain OFF for single play The LEFT or RIGHT menu buttons change the state of the setting between OFF and the four menu choices The repeat feature allows for single play recommended repeat of same song play and repeat the entire directory repeat continuously or repeat all songs in random order The fifth item is the MIDI Monitor function It is recommended this item remain in the BOTH setting The MIDI monitor is programmed to display the amplitude of each of sixteen individual MIDI channels during playback recording or both The individual channel volume is represented as a seven step bar graph at each character location on the lower line of the display The LEFT or RIGHT menu buttons change the state of the setting between Off Record Play and Both The sixth item is the Track Delay function It is recommended this item remain at 0 no delay The start of the MIDI sequence file can be delayed after the doorbell button press for up to nine seco2. White Red Black Red Black White Red Green Orange Orange Black Orange Red Orange Green Designates sharp Chime note scale programming 50 51 52 4B 4A 49 48 47 46 45 G5 AS AS D5 D5 C5 C5 B4 A4 A440 V output from controller V output from controller V output from controller V output from controller The default configuration for the CLEF Controller is A440 as the lowest note If your chimes are arranged differently please advise me at the time of order and the controller will be programmed to match your particular chimes Chime hanging pattern If you have ordered a set of 21 chimes with the CLEF Controller the hanging pattern can be configured in any way you desire Popular choices are Inverted V Normal V Lowest note left and Lowest note right Please contact me at Resonant Instruments for more information on the hanging pattern Warranty The Resonant Instruments CLEF MIDI Chime Controller is covered by a one 1 year warranty against defects in materials and workmanship Damage caused by misuse lightning or failure to install blocking diodes for output transistor protection are not covered by the warranty Please contact Resonant Instruments by telephone at 480 516 4523 for assistance or information Or you can email me at jthomas amug org
3. after striking If you believe the timing period may be too short or too long for your particular application the controller can be programmed to any timing period desired Please contact Resonant Instruments for instructions on returning the CLEF Controller for programming Chime driver Voltage adjustment There are three potentiometers related to chime volume control Adjustments are made through holes in the left side of the CLEF Controller to access ten turn micro potentiometers using a small flat blade screwdriver inserted into the slot The CLEF Controller is shipped pre adjusted to provide four linear volume steps If you find that the loudest volume setting is not be appropriate for your environment you can adjust the chime volume to meet your needs The three other volume steps will be scaled in reference to the main volume level and not require any further adjustments The other volume steps only apply if you use volume level commands in your MIDI sequence file data See Programmable Volume Control for information on using this feature in your compositions The main adjustment potentiometer furthest toward the back of the CLEF Controller is the volume control Turning the potentiometer clockwise will increase the voltage volume level and turning counter clockwise will decrease the volume level A trial and error test method is best in small quarter turn adjustments Play a few different MIDI compositions to determine if the new
4. CLEF The MIDI Door Chime Controller May 2013 Introduction The Resonant Instruments CLEF is a MIDI based Door Chime Controller system Integrating a MIDI sequence recorder player MIDI decoding programmable voltage solenoid drivers and a door chime button interface Direct MIDI through play is also supported using the DIN MIDI input on the rear of the controller The CLEF has been designed for use with low voltage electrical DC solenoid driven tubular Chime instruments A maximum of twenty one individual striker and damper solenoids are supported by the CLEF The chimes are DC voltage driven at between 12 and 18 volts using a 5 5 amp rated power supply Feature Summary Completely integrated controller enclosed inside a transparent polycarbonate case Twenty Four 24 Character dual line LCD display with thirty two character scrolling MIDI file name support Menu driven seven button user interface A removable SD Memory card for storage of MIDI sequence files Ability to record and save MIDI sequence files generated by a MIDI enabled keyboard using the DIN connector at back of controller Programmable volume control in four steps using standard MIDI note commands Door bell button interface Accepts standard 16vac transformer input from existing doorbell wiring Specifications The MIDI sequence recorder will auto start at the beginning of the first note received and will save the file data when the stop button is pres
5. ED then reinsert the card into the controller You will not be able to record new MIDI sequence files until the card has been unlocked Configuration Menu Settings The controller includes an extensive list of menu features The CLEF Controller has been preset to function as a door chime system prior to shipping The controller will play the same single MIDI sequence for each doorbell button press with no delay at start In the event you want to review the menu settings simultaneously press the UP and DOWN menu buttons to access the configuration menu Six separate menu items can be modified in the configuration menu If no changes are needed or you have modified a menu setting you can exit the menu by pressing the STOP button Follow the instructions for each menu item to change the corresponding setting Any changes to the item configuration are automatically saved to the internal microprocessor memory when you exit the menu by pressing the STOP button The first item displayed will be Drum Channel function Drum Channel is a feature not supported by the CLEF chime controller Please leave this setting at 10 and ignore it The second item is the Lyric Display function It is recommended this item remain ON This menu item enables or disables the Lyric display song file name on the top line of the LCD The LEFT or RIGHT menu buttons change the state of the setting between OFF and ON The third item is the Mute function
6. EF Controller is compatible with a standard 12 16vac transformer Please use your existing doorbell transformer and wiring to activate the chimes The image below is a standard representation of your doorbell circuit Connect the CLEF controller in place of the original doorbell Transformer Button i Doorbell Button IMPORTANT Use only the LED lighted doorbell button included with your CLEF Controller Do not use an incandescent lamp lighted doorbell button as it will damage the CLEF controller electronics An incandescent lamp consumes too much energy and will overload the sensor electronics inside the controller Solenoid Blocking diode Installation The CLEF Controller is a DC Direct Current output driver device Because it is a DC device blocking diodes must be installed across each of the solenoid coils The blocking diodes serve to protect the output driver transistors in the CLEF Controller from damage by the reverse EMF Electro Motive Force generated by the collapsing electric field If you have purchased the CLEF in a controller only configuration without the chimes a set of twenty one 1N4001 or 1N4004 blocking diodes have been included in the CLEF kit of parts 1N4001 oN Cathode banded end The blocking diodes are a polarized device and must be installed with banded end toward the V positive rail of each solenoid If you are unsure which side is the common positive rail please contact Resonant In
7. ller and the SD card is fully inserted into the controller If the card is removed the display will indicate the following error If the card is installed and repeats the error after the CLEF Controller has been restarted this indicates the SD memory card has experienced an error Please contact Resonant Instruments for instructions on replacing the SD memory card Formatting an SD memory card Any SD memory card with a capacity of 2gb or less can be used with the CLEF controller highly recommend SanDisk brand SD memory cards These appear to have the lowest defect and failure ratio of all the SD memory card brands tested The SD memory card must be formatted as FAT 16 bit data only Do not format using FAT32 as the card will not be recognized during startup by the controller Chime striker timing period The timing period used to activate a single strike of each chime tube is a fixed programming length permanently saved in the MIDI decoder MCU FLASH memory Normally the MIDI note length would be active as long as the key is held down This convention does not work well in a chime application and affects the quality of the strike if held longer than the time necessary to strike the chime tube and release Through extensive testing have determined that a strike pulse period length of 70ms milliseconds provides the best average timing period across all volume levels and minimizes any rattle that may occur with the dampers
8. nds The LEFT or RIGHT menu buttons change the value of the delay between 0 and 9 seconds Direct MIDI through play using the DIN connector The chimes can be directly driven using a MIDI enabled keyboard instrument transmitting sequence data on channel 0 zero whenever the CLEF Controller is idle Connect a DIN cable between the keyboard and CLEF controller for direct through play Your MIDI keyboard device may have channel 1 as the first channel If so use channel 1 The active keys on the MIDI keyboard correspond directly to the MIDI note assigned to each output of your chime scale The note table is located in the Solenoid output assignment at the back of this manual Wireless Infrared Remote Control The CLEF Controller can be operated remotely via the included wireless remote A universal type remote control has been pre programmed to allow for control of song selection Record Play Stop and Pause when set to the AUX DVD control at the top of the remote If the buttons do not seem to work make sure AUX control is selected The CHAN and CHAN are used to change the song selection The lower keys REC PLAY STOP and PAUSE control the operations The configuration menu and file deletion must be performed from the controller buttons No other operation keys on the remote are supported by the CLEF Troubleshooting In the event of problems please check to make certain all connections are securely made on the back of the contro
9. o the standby LED indicator on the lower right corner of the CLEF controller Menu keys are arranged as UP DOWN LEFT RIGHT STOP PLAY and RECORD STOP PLAY RECORD r J Recording MIDI sequence files Pressing the RECORD menu button will place the controller in a ready to record state The default name assigned to each file is MMnnn MID whereas the three digit value represents the file number The file number is dependant on the number of files already saved on the SD card The controller will begin recording immediately on detection of the first note received at the DIN connector When you are finished press the STOP button to end recording The file will be concluded and written up to the last note played before the STOP button was pressed Renaming the MMnnn MID file If you prefer you may remove the SD memory card from the controller and insert it into a computer that includes an SD memory card reader Edit the file name from MMnnn MID to anything you prefer under 32 characters as long as the MID extension remains on the file Deleting a MIDI sequence file Pressing the LEFT and RIGHT menu keys simultaneously will immediately delete the file currently shown on the LCD display WARNING There is no menu safety protection from accidentally deleting a file If you want to protect all of the files on the SD memory card from accidental deletion please remove the SD card and move the memory protection switch to LOCK
10. ress the keyboard keys F6 and G6 at the same time The key press must be timed together perfectly within 50ms of one another To set the volume to the second highest level send the MIDI key commands 5B and 5C simultaneously Alternatively you may press the keyboard keys G6 and G6 at the same time The key press must be timed together perfectly within 50ms of one another To set the volume to the highest level send the MIDI key commands 5A 5B and 5C simultaneously Alternatively you may press the keyboard keys F6 G6 and G6 at the same time The key press must be timed together perfectly within 50ms of one another Solenoid Output Pin assignment The DB25 S connector at the back of the CLEF serves as the output connection to the chime solenoids By default unless otherwise specified prior to shipping the Pin connections MIDI note and color assignment are as follows PIN COLOR 1 Green 2 Green White 3 Green Black 4 Green Black White 5 Blue 6 Blue White 7 Blue Black sequence reverse 8 Blue Red 9 Black 10 Black White 11 Black Red MIDI HEX 59 58 57 56 55 54 53 4C 4D 4E 4F NOTE F6 E6 D6 D6 C6 C6 BS ES F5 F5 G5 12 13 14 Black Red White White White Red sequence reverse 15 16 17 18 19 20 21 22 23 24 25 White Black White Black Red Red Red
11. sed File format is anon standard MIDI channel 0 Existing MIDI files are not compatible with the CLEF player format All new material must be recorded using the CLEF Controller The recorded MIDI file is saved as MMnnn MID Files may be renamed by editing the SD card file name on a PC that includes and SD card slot Solenoid Outputs are DC sink only rated 4 amps per channel maximum Programmable output voltage 12 18 Vdc in four linear steps Operation Voltage 18 20 Vdc 5 5 Amps using the included Power Supply Door Chime input voltage from existing transformer 16 Vac maximum SD Flash Memory Card 2gb Maximum MMC compatible FAT16 format Making Connections to the CLEF Controller Disconnect the two 16 volt AC wires from the original mechanical door chime and attach the two wires to the two screw terminals on the back of the CLEF controller Plug the DB25P cable connector into the DB25S socket on the back of the CLEF Controller Insert the SD memory card The SD card socket is a push push type To insert it simply push the card in until it locks into place make certain the label on the card faces up To remove the card push again to eject it Plug the 2 1mm coaxial power connector from the power supply into the socket at the back of the CLEF controller Insert the AC power cord from the power supply into a 120vac wall receptacle DOOR CHIME INP waer jam wen ai ee MI gamme Doorbell transformer The CL
12. setting is right Voltage adjustments A and B vary the linear divisions of the lower volume levels Do not make any adjustments to the A and B potentiometers as they are interactive and will affect the linear scaling of the lower volume steps aln folum sy Bi Adjustment a aga Robe Peden agia Beds meme et n he Bean Qe regis Programmable Volume Control The CLEF Controller supports four different programmable volume levels by means of MIDI note commands embedded into the sequence file composition When the CLEF is initially powered on the volume level will be defaulted to the highest output If you are in doubt of the current volume setting it is best to power off for a minimum of 15 seconds to allow the power supply to discharge and clear any volume setting and then power back on Alternatively you may send a MIDI note command 5A 5B and 5C hex to manually assign the highest volume setpoint The programmable Volume control is assigned by a two bit latch The most significant bit is 5B hex G6 and the least significant bit is 5A hex F6 To set the volume to the lowest level send the MIDI key commands 5A 5B and 5C simultaneously Alternatively you may press the keyboard keys F6 G6 and G6 at the same time The key press must be timed together perfectly within 50ms of one another To set the volume to the second lowest level send the MIDI key commands 5A and 5C simultaneously Alternatively you may p
13. struments for assistance Chime solenoid racks are typically wired with both the striker and damper solenoid connected in parallel One blocking diode is adequate for each pair of solenoids The banded end of the diode connects to the positive rail side of the solenoid pair and the unbanded end connects to the other side of the solenoid pair Do not attempt to operate the CLEF Controller without blocking diodes installed Permanent damage will occur and the CLEF will need to be returned for repair Operation At power on the CLEF controller will illuminate the LCD and a small green standby LED will be illuminated on the circuit board inside the controller electronics indicating the controller is operational The LCD display will show the name of the first file saved to the SD card along with the file number and the file size in bytes below the name The CLEF Controller is now ready for operation The MIDI sequence file displayed on the LCD will begin playing after pressing the play button on the controller Or after pressing the doorbell button Each of the twenty one solenoid output drivers includes a yellow LED associated with the output When a MIDI sequence file begins playing a yellow LED will illuminate to indicate when a note has been struck on the chimes Additionally another yellow LED serves as the MIDI activity indicator and will flash when decoding the MIDI sequence data The activity indicator is located adjacent t
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