Casio_CPS-230_Service_Manual电路图.pdf

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1、HIGH-GRADE KEYBOARD CTK-230 SEP. 2003 CTK-230 Ver.1 : Jan. 2004 RadioFans.CN 收音机爱 好者资料库 INDEX CONTENTS Specifications - 1 Block Diagram - 2 Circuit Description - 3 Printed Circuit Board - 4 Disassembly - 5 Diagnostic Program- 6 Schematic Diagrams- 8 Exploded View - 10 Parts List- 11 RadioFans.CN 收音机

2、爱 好者资料库 1 SPECIFICATIONS GENERAL Keyboard:49 standard-size keys, 4 octaves Tones:100 Polyphony:12 notes maximum (6 for certain tones) Auto Accompaniment Rhythm Patterns:100 Tempo:Variable (236 steps, = 20 to 255) Chords:2 fingering methods (CASIO CHORD, FINGERED) Rhythm Controller:START/STOP, SYNCHR

3、O/FILL-IN Accomp Volume:0 to 9 (10 steps) Song Bank Tunes:50 Controllers:PLAY/PAUSE, STOP, MELODY ON/OFF Display Name display:TONE, RHYTHM, SONG BANK name/number, keyboard setting names/ values Tempo:Tempo value, metronome, synchro standby, beat indicator, volume set- ting Chord:Chord name Song Bank

4、 Status:PLAY, PAUSE, MELODY ON/OFF Other Functions Transpose:12 steps (6 semitones to +5 semitones) Tuning:Variable (A4 = approximately 440Hz 50 cents) Volume:0 to 9 (10 steps) Terminals Phones/Output Terminal:Stereo standard jack (Output is monaural.) Output Impedance: 78 Output Voltage: 3V (RMS) M

5、AX Power Supply Terminal:9V DC Power Supply:Dual power supply system Batteries:6 AA-size batteries Battery Life:Approximately 6 hours continuous operation on alkaline batteries Approximately 3 hours continuous operation on manganese batteries AC Adaptor:AD-5 Auto Power Off:Turns power off approximat

6、ely 6 minutes after last operation. Enabled under battery power only, can be disabled manually. Speaker Output: 10cm 2 (1.6W + 1.6W) Power Consumption:9V 6.5W Dimensions:87.5 30.0 10.0 cm (34 1/2 11 13/16 3 15/16 inch) Weight:Approximately 3.2 kg (7.1 lbs) (without batteries) ELECTRICAL Current drai

7、n with 9 V DC: No sound output79 mA 20 % Maximum volume426 mA 20 % with 12 keys C3 to G4 pressed in Synth-Lead 1 Volume: 9 (Max.) Phone output level (Vrms with 32 load each channel): with key C5 pressed in Synth-Lead 1200 mV 20 % Speaker output level (Vrms with 4 load each channel): with key E2 pres

8、sed in Synth-Lead 1640 mV 20 % Output level (Vrms with 47 K load each channel): with key C5 pressed in Synth-Lead 1675 mV 20 % RadioFans.CN 收音机爱 好者资料库 2 BLOCK DIAGRAM MPU ML6556 IC202 LCD Power Supply Circuit Q201 Q203, D204 Power Amp. LA4227 IC201 Speaker (L) Speaker (R) Phones/Output VCAVDDVCCDVDD

9、 APO KOD8 KOD12 DC + 9 V IN DB4 DB7 LCD-E LCD-RW LCD-RS KID0 KID6 Buttons KI0 KI6 Keyboard Power Switch 3 CIRCUIT DESCRIPTION KEY MATRIX NOMENCLATURE OF KEYS C2 C#2D#2F#2 G#2A#2C#3D#3F#3 G#3A#3C#4D#4F#4 G#4A#4C#5D#5F#5 G#5A#5 D2E2F2G2A2B2C3D3E3F3G3A3B3C4D4E4F4G4A4B4C5D5E5F5G5A5B5C6 KID0KID1KID2KID3K

10、ID4KID5KID6 KOD8+0 TEMPOTEMPOVOLUMEVOLUME MLML KOD9321 START/SYNCRO/ F5 ACCOMP STOPFILL INVOLUME KOD10654 TRANSPOSE/SONG RHYTHMTONE TUNEBANK KOD11987FINGERED CASIO NORMALOFF CHORD KOD12E2 MELODYPLAY/ STOP ON/OFFPAUSE 4 PRINTED CIRCUIT BOARDS Main PCB CMW277-MAIN Top View Bottom View JACK PCB CMW277-

11、MA2M 5 DISASSEMBLY Main PCB JACK PCB SpeakerSpeaker 1. Remove the battery cover and then take out the battery. 2. Remove 7 screws and then the console panel. 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. 6 IInitial Setti

12、ng 1. Connect an AC adaptor. I How to start diagnostic program 1. Press the “POWER” button while pressing the “0 Up” and “START/STOP” buttons. DIAGNOSTIC PROGRAM I Diagnostic program 1. MODE Swtich check 1 Press “CASIO CHORD” button. 2 Press “FINGERED” button. 3 Press “NORMAL” button. 2. SWITCH chec

13、k 1 Press “0” button. 2 Press the buttons in the following order. TEST SONG BANK TEST RHYTH TEST TONE TEST SONG BANK 12 34 56 7 8 910 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 3 OK sound must be audible with the display as Message on LCD 3. ROM check 1 Press “2” button. OK sound must ne audibl

14、e. 4. ROM Ver. check 1 Press “1” button. Pip sound must be audible. 5. D/A check 1 Press “4” button. Minimum sine wave sound must be audible at center position. 2 Press “5” button. Middle sine wave sound must be audible at center position. 3 Press “6” button. Maximum sine wave sound must be audible

15、at center position. SWITCH OKSWIT Message on LCD AD-5 ROM TEST ROM 0000 ROM OK 277Vr170 MIN MID MAX 7 Message on LCD 6. LCD check 1 Press “TONE” button. 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 chan

16、ged 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. The display must be changed to

17、 pattern 2 characters. 8 Press “TONE” button. The display must be changed to as remark. 7. AC Adaptor check 1 Press “SONG BANK” button. OK sound must be audible. 8. APO check 1 Press “STOP” button. * Go out from TEST mode (Power off). * The LCD turns off. DIAGNOSTIC PROGRAM IS FINISHED. LCD TEST P=A

18、C ADP 8 SCHEMATIC DIAGRAMS Main PCB CMW277-MAIM 9 Keyboard PCBs JCM4911K-KY1M/KY2M 10 EXPLODED VIEW 17 16 1 2 3 5 6 7 8 9 10 11 12 13 14 15 18 11 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 departme

19、nt if you need these parts for refurbish. 1.Prices and specifications are subject to change with- out 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. PART

20、S LIST CTK-230 12 NItemParts codeParts nameSpecificationQ Price Code RRemarks N 1 9481 2403 ASSY/PANEL/SPEAKER CTK-230-1 1 BG C N21014 9232 KNOB#073-491040001AAC N31014 9231 SWITCH/SLIDE KNOB#051-400000801ADC -4 3831 1043SPEAKER S10JA13B 2BEB N51014 9219 RUBBER/BUTTON#072-491050001AAC N61014 9229 RU

21、BBER/BUTTON#072-491090001ABC N71014 9226 RUBBER/BUTTON#072-491080001ABC N81014 9224 RUBBER/BUTTON#072-491070001AAC N91014 9218 RUBBER/BUTTON#072-491040001AAC N101014 9222 RUBBER/BUTTON#072-491060001ACC N111014 9216 RUBBER/BUTTON#072-491030001ADC N121014 9178 LCD ASSY8CA-120-491020001BGC N131014 9174

22、 PCB ASSY/MAIN8CA-120-491010001CFA N141014 9188 PCB ASSY/JACK8CA-120-491030001AOC N151014 9258 SET KEY/WHITE#150-491020001AOC N161014 9234 SET KEY/WHITE#150-491010003ANC N171014 9259 SET KEY/BLACK#150-491030002AKC N 18 9481 2404 ASSY/CASE/PCB CTK-230-2 1 BR C ACCESSORY N-1014 9205 STAND/NOTE#040-491040001AIC Notes : Q- Quantity per unit R- Rank CASIO TECHNO CO.,LTD. Overseas Service Division 6-2, Hon-machi 1-Chome Shibuya-ku, Tokyo 151-8543, Japan Ver.1 :Jan. 2004 Replacement of the EXPLODED VIEW and PARTS LIST