Casio CTK-711EX Service Manual
Hide thumbs Also See for CTK-711EX:

Advertisement

Quick Links

INDEX
CTK-711EX
JUL.1998
110 RHYTHMS
DSP
CONTRAST
USER RHYTHM
100
'
109
POWER
MODE
VOLUME
FULL RANGE
CHORD
FREE
MAX
SESSION
FINGERED
CASIO CHORD
ONE TOUCH
PRESET
MIN
SEQUENCER
EXTERNAL
CH1
CH2
CH3
CH4
RECORD
SONG
PATTERN
INTERNAL
UPPER1
UPPER2
LOWER1
LOWER2
MIXER SELECT
TONE EXPANDER
TEMPO
NORMAL/
VARIATION/
SYNCHRO/
START/
INTRO
FILL-IN
FILL-IN
ENDING
STOP
BANK
2-WAY
BASS REFLEX SPEAKER
GM SOUND KEYBOARD
232 TONES
TONE
DEMO
7
8
9
SYNTH
RHYTHM
4
5
6
TRANSPOSE/
TUNE/MIDI
LAYER/
AUTO HARMONIZE
TOUCH
1
2
3
RESPONSE
SPLIT
/NO
/YES
DISK
0
16 CHANNEL MIXER
DELETE
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
CH16
CURSOR
MAIN MENU/
CHANNEL VOLUME
SUB MENU/
CHANNEL SELECT
ACC VOL.
CHORD1
CHORD2
CHORD3
BASS
RHYTHN
TR1
TR2
TR3
TR4
TR5
TR6
ACCOMP
SEQUENCER TRACK
REGISTRATION
A
B
C
D
E
STORE
ENTER
10DSP
ENVELOPE
PARAMETER RESET
ENTER
PITCH
AMP
ENVELOPE
ENVELOPE
00 FLAT
DECAY
01-17 VIBRATO
SUSTAIN
18-45 OTHERS
:
:
2-WAY
BASS REFLEX SPEAKER
CTK-711

Advertisement

Table of Contents
loading

Summary of Contents for Casio CTK-711EX

  • Page 1 CTK-711EX JUL.1998 110 RHYTHMS 232 TONES 10DSP TONE DEMO ENVELOPE PARAMETER RESET ENTER PITCH ENVELOPE ENVELOPE 00 FLAT DECAY SYNTH RHYTHM CONTRAST USER RHYTHM ‘ POWER MODE VOLUME TRANSPOSE/ FULL RANGE TUNE/MIDI CHORD FREE LAYER/ 01-17 VIBRATO SUSTAIN SESSION AUTO HARMONIZE...
  • Page 2: Table Of Contents

    CONTENTS Safety Notice ----------------------------------------------------------------------------------------------- 2 Specifications ---------------------------------------------------------------------------------------------- 3 Important Operation ------------------------------------------------------------------------------------- 5 Block Diagram --------------------------------------------------------------------------------------------- 6 Circuit Description --------------------------------------------------------------------------------------- 7 Diagnostic Program ------------------------------------------------------------------------------------ 20 Major Waveforms --------------------------------------------------------------------------------------- 25 Printed Circuit Board ---------------------------------------------------------------------------------- 26 Exploded View ------------------------------------------------------------------------------------------- 28 Parts List --------------------------------------------------------------------------------------------------- 29 Schematic Diagrams ----------------------------------------------------------------------------------- 31 —...
  • Page 3: Safety Notice

    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.
  • Page 4: Specifications

    Auto accompaniment Rhythm patterns: 110 (100 + 10 user rhythms) Tempo: Variable (226 steps, = 30 to 255) Chords: 3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE CHORD) Rhythm controller: Start/Stop, Intro, Normal/Normal Fill-In, Variation/Variation Fill-In, Synchro/Ending Accomp volume: 0 to 127 (128 steps)
  • Page 5 Other functions Pitch bend range: Adjustable (12 semitones upwards and downwards) Modulation: Equipped Transpose: 25 steps (–12 semitones to +12 semitones) Adjustable (A4 = approximately 440Hz ± 50 cents) Tuning: Terminals MIDI terminal: IN, OUT Sustain/Assignable jack: Standard jack (sustain, sostenuto, soft, rhythm start/stop) Headphones/Output: Stereo standard jack Output Impedance: 250 Ω...
  • Page 6: Important Operation

    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? •...
  • Page 7: Block Diagram

    BLOCK DIAGRAM Keyboard SEG1 ~ SEG40 MIDI LCD Driver SED1278F2A SI0 ~ Back Light Back Light Driver FI0 ~ LSI501 COM1 ~ COM16 NT-07 Q501, Q502 Key Controller TC190C020AF-001 ~DB7 LSI10 LEDCK, LEDCL LEDs S-Register CONT, RESB TC74HC164 LEDA ~ LEDF LRS, ROM2 ROM1...
  • Page 8: Circuit Description

    CIRCUIT DESCRIPTION KEY MATRIX Note: Each key has two contacts, the first conatct 1 and second contact 2. First contact 1 Second contact 2 NOMENCLATURE OF KEYS F#3 G#3 A#3 F#4 G#4 A#4 C#5 D#5 F#5 G#5 A#5 C#4 D#4 C2 D2 G2 A2 C3 D3...
  • Page 9 FREE TEMPO TRANS- CH14 SESSION POSE ONE TOUCH BANK CH15 SYNTH PRESET DMSW DEMO LED MATRIX LED-D LED-E LED-F LED-A LED-B LED-C FREE TOUCH FULL RANGE FINGERD CASIO CHORD SYNTH SESSION RESPONSE CHORD LED-G LED-H SONG PATTERN — 8 —...
  • Page 10 MEMORY DEVICES Each memory device has the following data. 1 RAM1 : S-RAM for operation program, Register, Pattern and Song. (Upper part of data bus) 2 Internal ROM of CPU : Internal Memory Main program data for system operation 512 kbit RAM1 16 kbit 3 Internal RAM of CPU :...
  • Page 11 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. PW/ON HD6473042F16-463 LSI9...
  • Page 12 DSP and DAC CIRCUIT The DSP (Digital Signal Processor) and DAC (Digital Analog Converter) consists of the following circuits. ROM1 ROM2 MSM27CB02CZ-463 MX23C3210MC-12CA89 LSI2 (8Mbit) LSI3 (32Mbit) CE A0 ~ A18 Q0 ~ Q15 CE A0 ~ A20 Q0 ~ Q15 RA23 RA22 RA0 ~...
  • Page 13 LCD BACKLIGHT NT-07 DE0405-979SL180J2K C502 HMBV26OR1W63N/AZG CFL1 (Bottom View) T501 LHL08TB101K L501 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. —...
  • Page 14 CPU (LSI9: HD6473042F16-463) 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.
  • Page 15 Pin No. Terminal In/Out Function AC adaptor detection terminal. Modulation signal input. Pedal signal input. — Not used. Key input signal from buttons. LCD contrast control voltage output. AVSS Ground terminal (0 V). Reset signal for DSP, Key controller. — Not used.
  • Page 16 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.
  • Page 17 Pin No. Terminal In/Out Function 90 ~ 92 Not used. +5 V source 94, 95 97 ~ 105 EA0 ~ EA14 Address bus for the working RAM 107, 109 110, 112 EWEB Write enable signal output for the working RAM EOEB Read enable signal output for the working RAM VCC7...
  • Page 18 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.
  • Page 19 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.
  • Page 20 DAC (LSI1: UPD6376GS) UPD6376GS is a two-channel 16-bit Digital to Analog Convertor consisting of resistor string, output ampli- fier 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.
  • Page 21: Diagnostic Program

    POWER MODE VOLUME TRANSPOSE/ FULL RANGE TUNE/MIDI CHORD FREE LAYER/ SESSION AUTO HARMONIZE FINGERED TOUCH e h m RESPONSE CASIO CHORD ONE TOUCH PRESET SPLIT /YES DISK f g n SEQUENCER 16 CHANNEL MIXER DELETE EXTERNAL CH10 CH11 CH12 CH13...
  • Page 22 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.
  • Page 23 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.
  • Page 24 LED test 1. Press “CURSOR → ” button. 2. Display indicates “LED Test” and LEDs illuminate in the following order with verification sound. a. FULL RANGE CHORD b. FINGERED c. CASIO CHORD d. SONG e. PATTERN f. FREE SESSION g. SYNTH h.
  • Page 25 <Other utilities> 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.
  • Page 26: Major Waveforms

    MAJOR WAVEFORMS 1 Clock signal for CPU 3 Voltage VDD Check point CP1 IC3 pin 2 2 Clock signal for DSP 4 Reset signal RES Check point CP2 IC3 pin 1 5 NMI signal 7 Sound signal L-OUT LSI9 pin 64 JC connector pin 10 6 Reset signal RESB 8 Sound signal L-VOL-OUT...
  • Page 27: Printed Circuit Board

    PRINTED CIRCUIT BOARD Main PCB JCM465-MA1M Top View Bottom View — 26 —...
  • Page 28 Sub PCB JCM463-MA2M Top View — 27 —...
  • Page 29: Exploded View

    EXPLODED VIEW...
  • Page 30: Parts List

    PARTS LIST Item Code No. Parts Name Specification MA1M PCB 6926 8940 PCB/ASSY (MA1M) M240837*2 LSI1 2114 4221 LSI UPD6376GS-E1 LSI2 2012 6134 LSI MX23C8100MC-12CA98 (LSI2) (2012 6063) (LSI) (MSM27C802CZ-463) (1) (A) LSI3 2012 6064 LSI MX23C3210MC-12CA89 LSI4 2011 7434 LSI HG51B155FD LSI5 2012 5572 LSI...
  • Page 31 Item Code No. Part Name Specification L501 3841 1197 COIL LHL08TB101K T501 3012 1470 INVERTER TRANS NT-07 CN1 ~ CN3 PCBs 6926 9070 PCB/ASSY (CN1M) M140751*1 6926 9080 PCB/ASSY (CN2M) M340815*1 6926 9090 PCB/ASSY (CN3M) M340816*1 IC301,302 2105 1239 IC/CMOS TC74HC164AP LED301 2370 1383 LED...
  • Page 32: Schematic Diagrams

    SCHEMATIC DIAGRAMS Main PCB JCM465-MA1M ROM1 ROM2 Working Key Controller D/A Converter Reset IC Backup Power RAM1 — 31 —...
  • Page 33 Sub PCB JCM463-MA2M Power Amp. LPF (R) LPF (L) Power Supply — 32 —...
  • Page 34 Console PCBs JCM465-CN1M/CN2M/CN3M — 33 —...
  • Page 35 LCD Driver PCB JCM465-LCD1M Voltage Regulator LCD Driver — 34 —...
  • Page 36 Keyboard PCBs JCM618T-KY1M/KY2M — 35 —...
  • Page 37 CASIO TECHNO CO.,LTD. Overseas Service Division 8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160-0023, Japan...

Table of Contents