CTK-811EX JUL.
CONTENTS Safety Notice ----------------------------------------------------------------------------------------------- 2 Specifications ---------------------------------------------------------------------------------------------- 3 Important Operation ------------------------------------------------------------------------------------- 5 Block Diagram --------------------------------------------------------------------------------------------- 6 Circuit Description -----------------------------------------
SAFETY NOTICE CAUTION! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. DENMARK: ADVARSE! Lithiumbatteri. Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med batteri af samme fabrikat og type. Lever det brugte batteri tilbage tili leverandoren. FINLAND: VAROITUS Paristo voiäjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan valmistajan suosittelemaan tyyppiin.
SPECIFICATIONS GENERAL Keyboard: Tones: Rhythm instrument tones: Polyphony: Digital effects: Auto accompaniment Rhythm patterns: Tempo: Chords: Rhythm controller: Accomp volume: One touch presets: Auto harmonize: Free session Number of patterns: Song sequencer Songs: Recording tracks: Recording method: Memory capacity (total for two songs): Punch in: Pattern sequencer Number of patterns: Memory capacity: Elements: Parts: Recording method: Registration memory Number of setups: Memory contents: Demo tunes: S
Other functions Pitch bend range: Modulation: Transpose: Tuning: Terminals MIDI terminal: Sustain/Assignable jack: Headphones/Output: Floppy disk drive Type: Formats: Functions: Power supply: Batteries Battery life AC adapter: Auto power off: Speaker output: Power consumption: Dimensions: Weight (without batteries): Standard accessories: Adjustable (12 semitones upwards and downwards) Equipped 25 steps (–12 semitones to +12 semitones) Adjustable (A4 = approximately 440Hz ± 50 cents) IN, OUT Standard jack
IMPORTANT OPERATION Full Initialization Use this procedure to return all keyboard settings to what they were when you purchased it. Note that this procedure clears all data from memory. • While holding down the ENTER button, turn on keyboard power. R e s e t? • Press YES to initialize the keyboard or NO to turn on power without changing any settings. Parameter Initialization Use this procedure to return all keyboard settings to what they were when you purchased it.
BLOCK DIAGRAM Key Board MIDI IN OUT SED1278F2A SI0 ~ SI7 FI0 ~ FI7 KC0 ~ KC7 LSI501 RD, HWR, LWR Key Controller TC190C020AF-001 LSI10 ROM2 MSM23C3210MC -12CA89 LSI3 (32Mbit) LCD Back Light Back Light Driver COM1 ~ COM16 NT-07 Q501, Q502 DB4 ~DB7 LEDCK, LEDCL CONT, LRS, LR/W LE RESB A1 ~ A4 S-Register TC74HC164 IC301 LEDs LEDA ~ LEDF D0 ~ D15 Buttons RA0 ~ RA20 CPU LSDT HD6473042F16-465 SWCK PBO RESB A0 ~ A3 S-Register TC74HC164 IC302 VDD KC0 ~ KC8 KI0 ~ KI7 DSP RD0 ~ RD15 Workin
CIRCUIT DESCRIPTION KEY MATRIX KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7 FI0 C2 1 C#2 1 D2 1 D#2 1 E2 1 F2 1 F#2 1 G2 1 SI0 C2 2 C#2 2 D2 2 D#2 2 E2 2 F2 2 F#2 2 G2 2 FI1 G#2 1 A2 1 A#2 1 B2 1 C3 1 C#3 1 D3 1 D#3 1 SI1 G#2 2 A2 2 A#2 2 B2 2 C3 2 C#3 2 D3 2 D#3 2 FI2 E3 1 F3 1 F#3 1 G3 1 G#3 1 A3 1 A#3 1 B3 1 SI2 E3 2 F3 2 F#3 2 G3 2 G#3 2 A3 2 A#3 2 B3 2 FI3 C4 1 C#4 1 D4 1 D#4 1 E4 1 F4 1 F#4 1 G4 1 SI3 C4 2 C#4 2 D4 2 D#4 2 E4 2 F4 2 F#4
BUTTON MATRIX KC0 KC1 KC2 KC3 KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7 MODE INTRO MIXER SELECT CH8 A CH16 SPLIT H/NO — RECORD NORMAL/ FILL-IN CH1 CH9 B E LAYER/ AUTO HARMO 2 VARIATION/ FILL-IN CH2 CH10 C H RHYTHM 5 PATTERN SYNCHRO/ ENDING CH3 CH11 D ENTER TONE 8 SONG KC4 DSP START/ STOP CH4 CH12 E DISK 0 G/YES + KC5 CONTRAST TEMPO G CH5 CH13 STORE TOUCH RESPONSE 1 3 KC6 FREE SESSION TEMPO H CH6 CH14 G TRANSPOSE 4 6 KC7 ONE TOUCH PRESET BANK CH7 C
MEMORY DEVICES Each memory device has the following data. 1 RAM1 : S-RAM for operation program, Register, Pattern, Song and SMF data from FDD. (Lower part of data bus) RAM1 1 1 Mbit LSI7 CPU 2 RAM2 : S-RAM for operation program, Register, Pattern, Song and SMF data from FDD.
POWER SUPPLY CIRCUIT The power supply circuit provides various voltages as shown below. The voltage VDD (+5 V) is provided as long as batteries or AC adaptor is set. Other voltages are controlled by APO (Auto Power Off) signal from CPU.
DSP and DAC CIRCUIT The DSP (Digital Signal Processor) and DAC (Digital Analog Converter) consists of the following circuits. ROM1 MSM27CB02CZ-465 LSI2 (8Mbit) CE RA23 ROM2 MX23C3210MC-12CA89 LSI3 (32Mbit) A0 ~ A18 Q0 ~ Q15 CE RA22 RA0 ~ RA18 A0 ~ A20 Q0 ~ Q15 RA0 ~ RA20 RD0 ~ RD15 SOLP: Sound data BOK: Bit clock WOK1: Word clock RA0 ~ RA20 SOLP DSP HG51B155FD LSI4 DAC SI BOK CLK WOK1 LRCK ROUT LOUT UPD6376GS CS OE WE PG D8 ~ D15 key data 24.
FDD UNIT (DF354H064A) FDD Specifications: 1 2 3 4 5 6 7 8 Memory Capacity (under un-format) : 1.6 MByte Density of track : 5.33 track/mm (135 TPI) Number of track : 77 track/side Number of head : 2 Rate of data transfer : 500 kbps Access time (between two tracks) : 3 m seconds Compensation of writing data : 125 n second (all tracks) Rotation speed : 360 Min-1 (rpm) ± 1.
LCD BACKLIGHT 1 2 4.7K Q502 LHL08TB101K 1 2 L501 CVDD 2 R501 1 T501 1 3 5 (Bottom View) 2SD965R 5 C516 4 7 DG CP14 C104FA 1 2 C502 3 2SD965R C104M CFL1 2 8 C501 HMBV26BG1W63N/AZG DE0405-979SL180J2K 2 1 3 2 1 2 9 1 Q501 1 NT-07 10 When voltage CVDD is supplied, transistors Q501 and Q502 start oscillation. From the oscillation voltage, transformer T501 generates about 600 V which is necessary for lighting the backlight.
CPU (LSI9: HD6473042F16-465) The 16 bit CPU contains a 512K-bit ROM, a 16K-bit RAM, eleven 8-bit I/O ports, an A/D converter and serial interfaces. The CPU accesses to the RAM1, RAM2, DSP, Key controller, FDD controller and LCD driver LSI. The CPU also controls buttons, LEDs, bender input and MIDI input/output. Pin No. 1 Terminal VCC In/Out In 2~5 6 7 8 9 PB0 ~ PB3 PB4 PB5 DREQ0 PB7 Out Out Out — Out Data bus for LCD driver. Chip enable signal for LCD driver. Read/write signal for LCD driver.
Pin No. 80 Terminal P72 In/Out In Function AC adaptor detection terminal. 81 82 83 84 85 P73 P74 P75 P76 DA1 In In In In Out Modulation signal input. Pedal signal input. FD sheet type (2HD, 2DD) signal input. Key input signal from buttons. LCD contrast control voltage output. 86 87 88 89 90 AVSS PB0 CS3 CS2 CS1 In Out Out Out Out Ground terminal (0 V). Reset signal for DSP, Key controller, FDD controller. Chip select signal for FDD. Acknowledge signal FDD DMA function.
DIGITAL SIGNAL PROCESSOR (LSI4:HG51A115A01FD) Upon receipt of note numbers and their velocities, the DSP (Digital Signal Processor) reads sound and velocity data from the sound source ROM in accordance with the selected tone; the DSP can read rhythm data simultaneously when a rythm pattern is selected. Then it provides 16-bit serial signals containing data of the melody, chord, bass, and percussion to the DAC. The DSP also adds the selected effect to the sound data using a 256k-bit RAM.
Pin No. 90 ~ 92 93 94, 95 97 ~ 105 107, 109 110, 112 96 106 108 111 113 ~ 117 118 119 120 ~ 122 123 ~ 130 131 132 ~ 134 135, 136 Terminal In/Out Function Not used. +5 V source VCC In EA0 ~ EA14 Out Address bus for the working RAM EWEB EOEB VCC7 ECEB Out Out In Out Write enable signal output for the working RAM Read enable signal output for the working RAM +5 V source Chip select signal output for the working RAM VCC4 GND4 In In ED0 ~ ED7 In/Out GND5 In Not used.
Pin No. Terminal In/Out 30 INP In Disk detection signal. 31 READY In Ready signal from FDD. (Connected to ground (0V).) 32 33 WPRT TRKO In In Write protect signal from FDD. Track0 signal from FDD. 34 INDEX In Index signal from FDD. 35 RDATA In Read data signal from FDD. 36, 37, 38 XTAL2, EXTAL2 39 NC, XTAL1 — Function Not used. 40 EXTAL1 In Clock signal input from CPU (16 MHz). 41, 42 43 VSS4, VSS5 NC In — Ground terminal (0 V). Not used.
KEY TOUCH LSI (LSI10: TC190C020AF-001) By counting the time between first-key input signal FI and second-key SI from the keyboard unit, the key touch LSI detects key velocity of 256-step. Then the LSI sends the CPU the note number and its velocity data. Pin No. Terminal In/Out 1 WRB In 2 ~ 11, 13, 14, 16 ~ 19 D0 ~ D15 In/Out 12 15 VSS VDD In In Ground terminal (0 V). VDD (5 V) source. 20 ~ 23 CA0 ~ CA3 In Address bus. 24 VSS In Ground terminal (0 V).
LCD DRIVER (LSI501: SED1278F2A) The LCD driver can drive a dot matrix LCD having 40 segment and 16 common lines. The LSI contains 240 graphic symbols in the built-in character generator ROM, and stores 80 characters in the built-in display data RAM. In accordance with command from the CPU, the LSI is capable of displaying up to 16 characters simultaneously. The following table shows the pin functions of LSI 501. Pin No.
DAC (LSI1: UPD6376GS) UPD6376GS is a two-channel 16-bit Digital to Analog Convertor consisting of resistor string, output amplifier and zero offset circuit. The DAC receives 16-bit serial data output from the DSP. The data contains digital sound data of the melody, chord, bass, and percussion for the right and left channels. The DAC converts the data into analog waveforms by each channel and output them separately. Pin No. 1 Terminal SEL In/Out In 2 D.GND In 3 NC Function Mode selection terminal.
DIAGNOSTIC PROGRAM ■ To enter diagnostic mode 1. While pressing down “0” and “ACCOMP CHORD MODE” buttons, press “POWER” button for turning on. 2. The instrument is set in diagnostic mode and display indicates “Test”. ■ Button check 1. Press “0” button. 2. Display indicates “Console”. 3.
■ Bender check 1. While pitch bender is left untouched, press “–” button. 2. Display indicates “Bender”. 3. If the bender’s center point is adjusted correctly, the instrument emits verification sound. If the center point is improper, an error alarm sounds and display indicates “Bend ER” and the instrument exits from the diagnostic program. 4. Rotate the bender all the way to the upper position. When the program detects upper most position, it emits verification sound.
■ RAM check 1. Press “3” button. 2. The program executes write/read test in all the RAM area. 3. When the RAM is proper, display indicates “RAM OK”. If the RAM malfunctions, “RAM NG” is shown on the display. 4. When the RAM check is executed, other tests become unavailable. 5. Pressing any key performs “Bender reset” transaction described below. ■ Small sound output 1. Press “4” button. 2. The instrument emits a sound in small volume and indicates “MIN” on the display. ■ Medium sound output 1.
■ LCD test 1. Press “CURSOR ←” button. 2. Display indicates “LCD OK”. 3. Each pressing of “CURSOR ←” button, displays following patterns in the following order with verification sound. a. b. c. d. e. f. g. Checker on 8 character block : pattern A Checker on 8 character block : pattern B Checker on pixel block : pattern A Checker on pixel block : pattern B All dots indication Displays each pixel (or dot) block in turn + all dots indication Displays each dot in turn + all dots indication ■ LED test 1.
■ Bender reset Sets bender’s center point in initial value. 1. While pressing down “ENTER” and “ACCOMP CHORD MODE” buttons, turn the power on. 2. Display shows “BndReset” indicating that pitch bender’s center point is initialized. 3. Perform the “System reset” described below. ■ System reset 1. While pressing down “ENTER” button, turn power on. 2. Display indicates “Reset?”. 3. Pressing “+” button initializes the instrument. Pressing “–” button invalidates system reset. 4.
FDD ERROR MESSAGE Error Message Reason of Error R e a dO n l y The file being written to is read-only. F o rm a t The disk format is not one supported by this keyboard. D is k R /W Error occurred during reading from the disk. D is k F u l l Disk is full. M em F u l l Not enough memory to perform the process. No memory is available to load data. N o tS SM F 0 An attempt was made to play data that is not SMF FORMAT 0.
MAJOR WAVEFORMES 1 3 4 2 1 Clock signal for CPU Check point CP1 2 Clock signal for DSP Check point CP2 3 Voltage VDD IC3 pin 2 4 Reset signal RES IC3 pin 1 7 5 6 8 5 NMI signal LSI9 pin 64 6 Reset signal RESB LSI9 pin 87 7 Sound signal L-OUT JC connector pin 10 8 Sound signal L-VOL0OUT JG connector pin 5 Tone: Clarinet, Volume: Max. Touch speed: Max.
PRINTED CIRCUIT BOARD Main PCB JCM465-MA1M 4 3 1 12 11 Top View Bottom View — 29 — 6 9 10 5 2
Sub PCB JCM465-MA2M 7 Top View 8 — 30 —
EXPLODED VIEW 41 R-1 R-3 38 37 36 29 30 31 35 40 39 22 10 32 34 21 33 40 27 19 23 24 20 7 3 12 11 23 5 28 14 4 6 — 31 — 22 13 8 BT1 1 9 43 2 R-2 15 16 18 26 R-4 46 44 42 25 17 45 48 48 47 47
PARTS LIST Item 1 LSI1 LSI2 (LSI2) LSI3 LSI4 LSI5 LSI6 LSI7/LSI8 LSI9 (LSI9) LSI10 IC1 IC2 IC3 IC4 Q1,Q3,Q4 Q2 D1,D3,D4 D2 X1 X2 BT1 2 IC201 IC204 IC202,205 IC203 Q205 Q204,206,209 Q208 Q203,210 D201,204~207, 210 D208 D202,203,209 J201 J202 J203 J204 L201,203,204, 208 L202,205 L206 3 4 5 6 7 LSI501 Q501/502 Q503 Code No.
Item Code No.
Item Code No.
SCHEMATIC DIAGRAMS MainPCB JCM465-MA1M 10 9 ROM1 ROM2 Working RAM DSP Key Controller D/A Converter 2 4 3 To FDD Unit Reset IC 1 Backup Power 5 12 FDD Controller 6 11 CPU RAM1 RAM2 — 35 —
SubPCB JCM465-MA2M Power Amp.
Console PCBs JCM465-CN1M/CN2M/CN3M S-Register S-Register — 37 —
LCD Driver PCB JCM465-LCD1M Voltage Regulator Back Light Circuit CAUTION High Voltage LCD Driver — 38 —
Keyboard PCBs JCM618T-KY1M/KY2M — 39 —
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