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100 SONG BANK KEYBOARD
MUSICAL INFORMATION SYSTEM
SONG BANK CONTROLLER
INDEX
CTK-411
PHONES/
DC 9V
IN
OUT
OUTPUT
MIDI
TONE
RHYTHM
SONG BANK
STATUS
TEMPO
MAIN VOLUME
POWER/MODE
MAIN
SYNCHRO/
START/
TEMPO
CHORD BOOK
VOLUME
FILL-IN
STOP
M
m
7
M7
0
1
2
3
FINGERED
ON
CASIO CHORD
NORMAL
OFF
5
6
7
8
ACCOMP VOLUME
aug
sus4
-5
add9
ELECTRONIC KEYBOARD
MUSICAL INFORMATION SYSTEM
SONG BANK CONTROLLER
dim
TONE
SONG BANK
REW
STOP
FF
4
LEFT
RIGHT
ON/OFF
ON/OFF
9
CLEAR
RHYTHM
TRANSPOSE/
TUNE/MIDI
CTK-411

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Table of Contents

   Also See for Casio CTK-411

   Summary of Contents for Casio CTK-411

  • Page 1 CTK-411 PHONES/ DC 9V OUTPUT MIDI TONE RHYTHM SONG BANK STATUS TEMPO MAIN VOLUME MUSICAL INFORMATION SYSTEM POWER/MODE SONG BANK CONTROLLER MAIN SYNCHRO/ START/ TEMPO CHORD BOOK VOLUME FILL-IN STOP TONE SONG BANK STOP FINGERED LEFT RIGHT CASIO CHORD ON/OFF...
  • Page 2: Table Of Contents

    CONTENTS Specifications ........................... 1 Block Diagram ..........................2 Circuit Description ..........................3 Adjustment ............................7 Major Waveforms ..........................8 Printed Circuit Boards ........................9 Schematic Diagrams ........................10 Exploded View ..........................14 Parts List ............................15...
  • Page 3: Specifications

    12 notes maximum (6 for certain tones) Auto accompaniment Rhythm patterns: Tempo: Variable (236 steps, = 20 to 255) Chords: 2 fingering methods (CASIO CHORD, FINGERED) Rhythm controller: START/STOP, SYNCHRO/FILL-IN Accomp volume: 0 to 9 (10 steps) Song bank Tunes:...
  • Page 4: Block Diagram

    BLOCK DIAGRAM COM1 ~ COM16 LCD Driver KS0066U-10B LSI3 Buttons Keyboard SEG1 ~ SEG40 KO8 ~ KI0 ~ KI6 DB4 ~ DB7 Phones/Output KO12 Speaker Power Amp. KO0 ~ KO7 LA4598 IC101 Speaker Filter Q105 MSM 6755C-17 MD0 ~ MD7 LSI1 VCC DVDD AVDD...
  • Page 5: Circuit Description

    Chord Accomp Stop Fill-in Book Volume Transpose/ Song KO10 Rhythm Tone Tune Bank KO11 Fingered CASIO Normal Power Off Chord Play/ KO12 Right Stop Left Rewind Pause NOMENCLATURE OF KEYS C#2 D#2 F#2 G#2 A#2 C#3 D#3 F#3 G#3 A#3...
  • Page 6 CPU (LSI1: MSM6755C-17) The CPU reads sound data from the ROM in accordance with the pressed key and the selected tone; the CPU can read rhythm data simultaneously when a rhythm pattern is selected. Then it provides the left and the right channels’...
  • Page 7 Pin No. Terminal In/Out Function 74 ~ 77 DB4 ~ DB7 Data bus for the LCD driver — Not used LVCC +5 V source 80 ~ 84 KO8 ~ KO12 Terminals for button scan signal 85 ~ 87 P65 ~ P67 —...
  • Page 8 FILTER BLOCK Since the sound signals from the CPU is stepped waveforms, the filter block is added to smooth the waveforms. Amp. Filter LA4598 Block MSM6755C-17 POWER AMPLIFIER (IC101: LA4598) The power amplifier is a two-channel amplifier with standby switch. The following table shows the pin function of IC101.
  • Page 9: Adjustment

    ADJUSTMENT MAIN PCB 1) Items to be adjusted: Item Measuring Instrument Vop voltage setting Voltmeter 2) Adjustment and Test Point Locations (TOP VIEW) (BOTTOM VIEW) 3) Equipment connection/Procedure Vop voltage setting Voltmeter Output Input Input Input Output Output Adjust Adjust for Connection Point Signal...
  • Page 10: Major Waveforms

    MAJOR WAVEFORMS 1 Clock pulse 2 +5 V source DVDD MSM6755C-17 pin 32 JB connector pin 4 3 APO signal JB connector pin 8 6 LCD common signal COM9 4 Button scan signal KO6 KS0066U-10B pin 55 JA connector pin 14 7 LCD common signal COM10 5 Button scan signal KO7 KS0066U-10B pin 56...
  • Page 11: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS Main PCB JCM444-MA1M Top View Bottom View — 9 —...
  • Page 12: Schematic Diagrams

    SCHEMATIC DIAGRAMS Main PCB JCM444-MA1M — 10 —...
  • Page 13 Sub PCBs JCM444-MA2M/MA3M — 11 —...
  • Page 14 Keyboard PCBs JCM4911K-KY1M/KY2M — 12 —...
  • Page 15 Common Segment — 13 —...
  • Page 16: Exploded View

    EXPLODED VIEW — 14 —...
  • Page 17: Parts List

    PARTS LIST CTK-411 Notes: This parts list does not include the cosmetic parts, which parts are marked with item No. "R-X" in the exploded view. Contact our spare parts department if you need these parts for refurbish. Prices and specifications are subject to change with- out prior notice.
  • Page 18 Item Code No. Parts Name Specification Main PCB 6926 7070 PCB/ASS'Y (MA1M) M240832*1 LSI1 2012 5603 LSI/MC (CPU) MSM6755B-17 LSI2 2012 5611 LSI/MASK-ROM UM23C2101M-7384/Q LSI3 2012 5935 LSI/LCD DRIVER KS0066U-10B 2012 1883 IC/MOS (RESET IC) RN5VD40AA-TR Q1,Q2 2252 1239 TRANSISTOR/CHIP 2SC4081T106Q 2250 1169 TRANSISTOR/CHIP 2SA1576AT106S...
  • Page 19 CASIO TECHNO CO.,LTD. Overseas Service Division 8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160-0023, Japan...

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