CTK-230 SEP. 2003 CTK-230 HIGH-GRADE KEYBOARD INDEX Ver.1 : Jan.
CONTENTS Specifications ---------------------------------------------------------------------------------------------- 1 Block Diagram --------------------------------------------------------------------------------------------- 2 Circuit Description --------------------------------------------------------------------------------------- 3 Printed Circuit Board ------------------------------------------------------------------------------------ 4 Disassembly --------------------------------------------------
SPECIFICATIONS GENERAL Keyboard: Tones: Polyphony: Auto Accompaniment Rhythm Patterns: Tempo: Chords: Rhythm Controller: Accomp Volume: Song Bank Tunes: Controllers: Display Name display: Tempo: Chord: Song Bank Status: Other Functions Transpose: Tuning: Volume: Terminals Phones/Output Terminal: Power Supply Terminal: Power Supply: Batteries: Battery Life: AC Adaptor: Auto Power Off: Speaker Output: Power Consumption: Dimensions: Weight: 49 standard-size keys, 4 octaves 100 12 notes maximum (6 for certain
—2— DC + 9 V IN Speaker (R) Speaker (L) VCC DVDD AVDD Power Amp.
CIRCUIT DESCRIPTION KEY MATRIX KID0 KID1 KID2 KID3 KID4 KID5 KID6 KOD8 — + 0 3 2 1 TEMPO ▲ SYNCRO/ FILL IN VOLUME ▼ KOD9 TEMPO ▼ START/ STOP F5 VOLUME ▲ ACCOMP VOLUME KOD10 6 5 4 TRANSPOSE/ TUNE SONG BANK RHYTHM TONE KOD11 9 8 7 FINGERED CASIO CHORD NORMAL OFF KOD12 E2 MELODY ON/OFF PLAY/ PAUSE STOP NOMENCLATURE OF KEYS C#2 D#2 C2 D2 E2 F#2 G#2 F2 G2 A#2 A2 B2 C#3 D#3 C3 D3 E3 F#3 G#3 F3 G3 A#3 A3 C#4 D#4 B3 C4 D4 —3— F#4 G#4 E4 F4 G4 A#4
PRINTED CIRCUIT BOARDS Main PCB CMW277-MAIN Top View Bottom View JACK PCB CMW277-MA2M —4—
DISASSEMBLY 1. Remove the battery cover and then take out the battery. 2. Remove 7 screws and then the console panel. JACK PCB Speaker Speaker Main PCB 3. Remove 12 screws and then the Main PCB. 4. Remove 2 screws and then the JACK PCB. 5. Remove 8 screws and then the Speaker.
DIAGNOSTIC PROGRAM Message on LCD ■Initial Setting AD-5 1. Connect an AC adaptor. ■ How to start diagnostic program 1. Press the “POWER” button while pressing the “0 Up” and “START/STOP” buttons. SONG BANK TEST ■ Diagnostic program 1. MODE Swtich check 1 Press “CASIO CHORD” button. RHYTH 2 Press “FINGERED” button. TONE 3 Press “NORMAL” button. SONG BANK TEST TEST TEST 2. SWITCH check 1 Press “0” button. SWITCH 2 Press the buttons in the following order.
Message on LCD 6. LCD check 1 Press “TONE” button. LCD 2 Press “TONE” button. *Pip sound must be audible. The display must be changed to turn on all dots. 3 Press “TONE” button. The display must be changed to no display. 4 Press “TONE” button. The display must be changed to pattern 1 dot matrix. 5 Press “TONE” button. The display must be changed to pattern 2 dot matrix. 6 Press “TONE” button. The display must be changed to pattern 1 characters. 7 Press “TONE” button.
—8— Main PCB CMW277-MAIM SCHEMATIC DIAGRAMS
—9— Keyboard PCBs JCM4911K-KY1M/KY2M
EXPLODED VIEW 2 1 11 3 10 7 9 8 6 5 15 16 12 17 13 14 18 — 10 —
PARTS LIST CTK-230 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. 1. Prices and specifications are subject to change without prior notice. 2. As for spare parts order and supply, refer to the "GUIDEBOOK for Spare parts Supply", published seperately. 3. The numbers in item column correspond to the same numbers in drawing.
N Item Parts code N 1 9481 2403 Parts name Specification N 2 1014 9232 ASSY/PANEL/SPEAKER KNOB N 3 SPEAKER 1 Price Code BG 1 AA Q R C CTK-230-1 ##073-49104000 SWITCH/SLIDE KNOB ##051-40000080 1 AD C BE B C - 4 1014 9231 3831 1043 N 5 1014 9219 RUBBER/BUTTON S10JA13B ##072-49105000 2 1 AA C ##072-49109000 1 AB C N 6 1014 9229 RUBBER/BUTTON N 7 1014 9226 RUBBER/BUTTON ##072-49108000 1 AB C ##072-49107000 1 AA C N 8 1014 9224 RUBBER/BUTTON N 9
Ver.1 : Jan. 2004 Replacement of the EXPLODED VIEW and PARTS LIST CASIO TECHNO CO.,LTD.
