Casio_MZ-2000_Service_Manual电路图.pdf

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1、ELECTRONIC KEYBOARD MZ-2000 MAY. 2000 MZ-2000 REVERB SEQUENCER 8 BEAT SPLIT POINT ACCOMP INTERACTIVE 16 BEATPOPS DANCEJAZZLATIN1 LATIN2 FULL RANGE CHORD FINGERED CASIO CHORD AMERICANWORLD RHYTHM VARIOUS/ USER EUROPEAN ROCK AFTER TOUCH/ CONTROLSETTING TRACKRECORDSTUDIO DISPLAY MODE CONTRAST ONE TOUCH

2、 PRESET MULTI-EASYSONG PATTERN PIANO DISPLAY HOLD EXIT PIANOPERC ELECCHROMATIC ORGAN ORGANTONE1 TONE2 GUITAR BASSACCORDION CHORUSMASTER4 321 ORCHESTRAENSEMBLEBRASS LEADPADEFFECTSSET STRINGS/SOLO BRASSSAXCLARINETFLUTE SYNTH- SYNTH-PERC/DRUMDRAWBER USERUSER DISK MIDISUSTAINUPPER 2UPPER 1LOWER1ARPEGGIA

3、TOR AUTO HARMONIZE TRANSPOSE DOWNUP LOWER2 STORE87654321BANK HELPDEMOSELECT COMBINATION SYNTHEFFECT ACCOMP/DISK VOLUME DOWNUP TEMPO START/STOP SYNC START/SYNC STOPBREAK NEXTNORMALBACK FADE IN/OUTrit. 121 1234 2 DOWNUP DRAWBERMIXER MINMAX RadioFans.CN 收音机爱 好者资料库 1 CONTENTS Page Specifications . 1 Blo

4、ck Diagram. 4 Circuit Description . 5 After sensor adjustment . 9 Diagnostic program . 13 Printed Circuit Boards . 17 Schematic Diagrams . 19 Exploded View . 29 Parts List . 30 SPECIFICATIONS GENERAL Keyboard:61 standard-size keys; 5 octaves; touch response (Can be assigned one of three touch curves

5、.) /after touch (Can be assigned one of four touch curves.) Interface Display Screen:320 240-dot LCD panel with menu interface Controllers:Dial, control buttons, control sliders (Setting results appear on display screen.) Tones:562 total (507 preset tones + 15 drum sounds + 40 user tones); layer and

6、 split; variable split point Rhythm Instrument Tones: 65 Polyphony:64 notes maximum (32 maximum for some tones) Digital Effects:4-channel DSP (240 types) + Reverb (15 types) + Chorus (20 types) + Master (50 types) Digital Drawbar Function Drawbars:9 (16, 5 1/3, 8, 4, 2 2/3, 2, 1 3/5, 1 1/3, 1) Digit

7、al Drawbar Types:Sine, Vintage Percussion:Second, Third Click:On, Off Auto Accompaniment Rhythm Patterns:120 Presets + 10 User Rhythms (130 total) Tempo:Variable (226 levels: =30 to 255) Chords:3 types (CASIO CHORD, FINGERED, FULL RANGE CHORD) Rhythm Controller:Start/Stop; Intro 1, 2; Fill in BACK,

8、NORMAL, NEXT; Break; Variations 1 to 4; Sync Start/Stop; Ritardando; Fade In/Out; Ending 1, 2 Accompaniment volume:0 to 127 (128 levels) One Touch Presets:Optimal tone, tempo, layer/auto harmonize settings to match rhythm; 4 presets for each built-in rhythm, 1 assignable for user rhythm Auto Harmoni

9、ze:12 types; adds harmony notes to melody in accordance with auto accom- paniment chord fingerings. Arpeggiator:15 types; automatic arpeggio using notes of a chord played on the key- board Interactive Accomp:Automatic adjustment of auto accompaniment to match keyboard play Song Sequencer Number of S

10、ongs:10 Number of Record Tracks:17 (system track + external tracks 1 through 16) Record Methods:Realtime, Step Memory Capacity:Approximately 40,000 notes (10 songs) RadioFans.CN 收音机爱 好者资料库 2 Punch-in Functions:Manual punch-in; auto punch-in Editing Functions:Song editing; track editing; event editin

11、g Pattern Sequencer User Pattern Areas:10 Memory Capacity:Approximately 22,000 notes Elements:Intro 1, 2; Fill In BACK, NORMAL, NEXT; Variations 1 through 4; Endings 1, 2 Number of Parts:8 (drum, percussion, bass, chord 1 to 5) Recording Methods:Real-time, step Editing Functions:Element editing; par

12、t editing; event editing Song Studio Number of Songs:10 Composing Functions:Chord extraction, pattern extraction, melody extraction from SMF or Song Sequencer data Editing Functions:Chord editing; melody track editing Memory Capacity:Memory shared with Song Sequencer Registration Memory Number of Me

13、mory Areas:64 (8 sets 8 banks) Savable Setup Data:Rhythm; tone; tempo; auto harmonize, arpeggiator, sustain button on/off status; accomp volume; transpose setting; effect settings, etc. (See the “Registration Memory/One Touch Preset Table” for more information.) Demos:Melody Demos (3 tunes); Tone De

14、mos (10 tunes); Rhythm Demos (10 tunes); Function Demo (1 tune) Synthesizer:Two modes (basic settings, advanced settings) Parameters:Basic tones (DCO) 4; envelope (accomp envelope, filter envelope, pitch envelope): LFO 2 channels; effect settings; controller settings Mixer:Two modes (basic settings,

15、 advanced settings) Number of Channels:31 (15 internal + 16 external) Parameters:Tone; part on/off; input (microphone, line only); pan; volume; reverb depth; chorus depth; DSP; noise gate threshold; EQ high frequency/high gain; EQ low frequency/low gain; coarse tune; fine tune MIDI:16-channel multi-

16、timbre receive; GM Level 1 compliant Controllers:Pitch bend wheel; modulation wheel; assignable button; sustain button Other Functions Transpose:49 levels (24 semitones to 0 to + 24 semitones) Tuning:A4=415.3Hz to 466.2Hz (Center: 440Hz) Terminals MIDI:IN, OUT, THRU TO HOST:Mini DIN jack (selectable

17、) Foot Pedal:Standard jack Expression Pedal:Stereo standard jack Line Out (L/R):Standard jack 2 Output impedance: 5.7k Output voltage: 3.0V (RMX) MAX Line In (L/R):Standard jack (with bypass switch) 2 Input impedance: 75k Input sensitivity: 200mV Headphones:Stereo standard jack Microphone In:Standar

18、d jack (with microphone volume knob) Input impedance: 40k Input sensitivity: 10mV Power:16V DC RadioFans.CN 收音机爱 好者资料库 3 ELECTRICAL Current drain with 16 V DC: No sound output810 mA 20 % Maximum volume2000 mA 20 % Condition : 1KHz-Sin wave by which the speaker output level becomes 2,737V is input fr

19、om Line-in. Speaker output level (Vrms with 4 load each channel): with key G1(L), F3(R)Lch : 7700 mV 20 % Volume: maximun, Tone: SineRch : 6400 mV 20 % Velocity MAX mode, DSP1,2,3,4/ Reverb/ Chorus/ Master: turned on Phone output level (Vrms with 8 load each channel): with key G1(L), F3(R)Lch : 130

20、mV 20 % Volume: maximun, Tone: SineRch : 115 mV 20 % Velocity MAX mode, DSP1,2,3,4/ Reverb/ Chorus/ Master: turned on Lineout level (Vrms with 47 load each channel): with key G1(L), F3(R)Lch : 500 mV 20 % Volume: maximun, Tone: SineRch : 420 mV 20 % Velocity MAX mode, DSP1,2,3,4/ Reverb/ Chorus/ Mas

21、ter: turned on About General MIDI General MIDI standardizes MIDI data for all sound source types, regardless of manufacturer. General MIDI specifies such factors as tone numbering, drum sounds, and available MIDI channels for all sound sources. This standard makes it possible for all MIDI equipment

22、to reproduce the same nuances when playing General MIDI data, regardless of the manufacturer of the sound source. This keyboard supports General MIDI, so it can be used to play commercially available pre-recorded General MIDI data and General MIDI data send to it from a personal computer. Floppy Dis

23、k Drive Type:3.5-inch floppy disk drive Disk Format:2DD: 720KB MS-DOS format 2HD: 1.44MB MS-DOS format Functions:Save and load of user tones, user rhythms, Song Sequencer data, Song Studio data, Registration Memory data; playback and melody part cut of Standard MIDI files (SMF); disk formatting; fil

24、e delete; file rename; pat- tern conversion Power Requirements:AD-16ML AC Adaptor Speaker Output:15W + 15W Power Consumption:16V - 32W Dimensions:115.0 42.5 20.2 cm (45 5/16 16 3/4 7 15/16 inch) Weight:Approximately 12.4kg (27.4 lbs) 4 BLOCK DIAGRAM Bender Wheel Power Switch After Sensor Console LED

25、 Sensor Circuit HOSTINOUTEXP. PEDAL key board Key Controller TC190C020AF-001 LSI1 Power Amp TA8233BH IC302 DSP (Effect) UPD914GM-3ED LSI2 UPD914GM-3ED LSI3 Speaker D/A Converter PCM69BU IC2 Filter MAIN Volume BYPASS ON BYBASS Switch 4M-bit Static-RAM HM62W16258BLTT-5 LSI10 1M-bit Static-RAM KM641001

26、BJ-20 LSI9 4M-bit Static-RAM KM6164000BLT-5L LSI13 Lithium Battery 1M-bit Static-RAM V62C31161024L35 LSI8 64M-bit MASK-ROM D2364000ALGY865 LSI6 64M-bit MASK-ROM D2364000ALGY864 LSI7 4M-bit Static-RAM KM6164000BLT-5L LSI14 LINE IN AMP MIC AMP MIC Volume Amp Circuit A/D Converter PCM1800E IC3 BYPASS O

27、FF Wave Data Program Accomp/DEMO data Picture data 32M-bit MASK-ROM LSI12 32M-bit MASK-ROM LSI11 Reset IC RN5VD40AA IC15 Reset 32M-bit MASK-ROM LSI19 Amp Circuit PHONES VDD(5.2V) DVD(5V) CVD(5V) FVD(5V) VDA(5V) AVCC(13.4V) VEE(25V) Power Supply Circuit AC Adaptor AD-16ML-MJ1 SUS. PEDALTHRU MA2M PCB

28、MA2M PCB LINEOUTLINEINMIC MI D I HOST Selecter SSSF144-S06N1 SW302 AD7306 IC311 Console Buttons Console PCB LCD LCD Controller M66271FP LSI17 FDD Controller HD63266F LSI18 FDD UNIT Gate Array UPD65636GC-140-7EA LSI16 CPU UPD703025AGC33 LSI15 Slider Volume (For Drowbar) Rotary E ncoder EC16B24204 SW9

29、21 Modulation Wheel Sound Source ROM 5 CIRCUIT DESCRIPTION KEY MATRIX BUTTON MATRIX 01234567 KS00MODEINTERACTIVE.SPLIT POINTVARIATION 1VARIATION 2VARIATION 3VARIATION 4 KS01rit.FADE-IN/OUTINTRO 1INTRO 2ENDING 1 ENDING 2ACC/DISK MTEMPO M KS02FILL-IN BACKPATTERN SEQ.FILL-IN NEXTBREAKSYNC. St/StStart/S

30、topACC/DISK MTEMPO M KS0316BEATMULTI-TRACKEASY REC.SONG STUDIOSETTINGAFTER/CONT. KS048BEATLATIN 1POPSROCKDANCEJAZZ KS05EUROPEANLATIN 2AMERICANVARI./WORLDUSER KS06 KS07 KC0K1CK2CK3CK4CK5CK6CK7C FI0C2(1)C#2(1)D2(1)D#2(1)E2(1)F2(1)F#2(1)G2(1) SI0C2(2)C#2(2)D2(2)D#2(2)E2(2)F2(2)F#2(2)G2(2) FI1G#2(1)A2(1

31、)A#2(1)B2(1)C3(1)C#3(1)D3(1)D#3(1) SI1G#2(2)A2(2)A#2(2)B2(2)C3(2)C#3(2)D3(2)D#3(2) FI2E3(1)F3(1)F#3(1)G3(1)G#3(1)A3(1)A#3(1)B3(1) SI2E3(2)F3(2)F#3(2)G3(2)G#3(2)A3(2)A#3(2)B3(2) FI3C4(1)C#4(1)D4(1)D#4(1)E4(1)F4(1)F#4(1)G4(1) SI3C4(2)C#4(2)D4(2)D#4(2)E4(2)F4(2)F#4(2)G4(2) FI4G#4(1)A4(1)A#4(1)B4(1)C5(1

32、)C#5(1)D5(1)D#5(1) SI4G#4(2)A4(2)A#4(2)B4(2)C5(2)C#5(2)D5(2)D#5(2) FI5E5(1)F5(1)F#5(1)G5(1)G#5(1)A5(1)A#5(1)B5(1) SI5E5(2)F5(2)F#5(2)G5(2)G#5(2)A5(2)A#5(2)B5(2) FI6C6(1)C#6(1)D6(1)D#6(1)E6(1)F6(1)F#6(1)G6(1) SI6C6(2)C#6(2)D6(2)D#6(2)E6(2)F6(2)F#6(2)G6(2) FI7G#6(1)A6(1)A#6(1)B6(1)C7(1) SI7G#6(2)A6(2)

33、A#6(2)B6(2)C7(2) 6 01234567 KS10REVERBCHORUSMASTERDSP 1DSP 2DSP 3DSP 4 KS11MIDIHELPDEMODISK KS12ARPEGGITOPLOWER 1UPPER 1AUTO HARMO.LOWER 2UPPER 2SUSTAIN KS13PIANOELEC PIANOCHROMATIC P.ORGANACCORDIONGUITARBASS KS14STRINGS/ORCHENSEMBLESOLO BRASSBRASSSAXCLARINETFLUTE KS15SYNTH-LEADSYNTH-PADPERC/EFFECTS

34、DRUM SETDRAWBARUSER TONE 1USER TONE 2 KS16REG.MEMO 1 REG.MEMO 2 REG. MEMO 3 REG. MEMO 4 REG. MEMO 5 REG. MEMO 6 REG. MEMO 7 REG. MEMO 8 KS17BANKSTORESELECT 01234567 KS20ONE T. PRESET COMBINATIONDRAWBAREFFECTSYNTHMIXER KS21LCD LEFT 1LCD LEFT 2LCD LEFT 3LCD LEFT 4LCD LEFT 5CONTRASTDISPLAY MODE KS22LCD

35、 RIGHT 1 LCD RIGHT 2 LCD RIGHT 3 LCD RIGHT 4 LCD RIGHT 5DISPLAY HOLDEXIT KS23DRAWBAR 1 M DRAWBAR 2 M DRAWBAR 3 M DRAWBAR 4 M DRAWBAR 5 M DRAWBAR 6 M DRAWBAR 7 M DRAWBAR 8 M KS24DRAWBAR 1 L DRAWBAR 2 L DRAWBAR 3 L DRAWBAR 4 L DRAWBAR 5 L DRAWBAR 6 L DRAWBAR 7 L DRAWBAR 8 L KS25DRAWBAR 9 M TRANSPOSE M

36、 KS26DRAWBAR 9 L TRANSPOSE L KS27DRAWBAR (Volume)1 LCD switches are designated 1 through 5 from the top,and DRAWBAR switches are desginated 1 through 9 from the left. KS30DRAWBAR (Volume)2 KS31DRAWBAR (Volume)3 KS32DRAWBAR (Volume)4 KS33DRAWBAR (Volume)5 KS34DRAWBAR (Volume)6 KS35DRAWBAR (Volume)7 K

37、S36DRAWBAR (Volume)8 KS37DRAWBAR (Volume)9 7 LED MATRIX Note: Each key has two contacts, the first conatct (1) and second contact (2). NOMENCLATURE OF KEYS Key Second contact (2) First contact (1) FI KC SI C2 C#2 D#2F#2 G#2 A#2C#3 D#3F#3 G#3 A#3C#4 D#4F#4 G#4 A#4C#5 D#5F#5 G#5 A#5C#6 D#6F#6 G#6 A#6

38、D2E2F2G2A2B2C3D3E3F3G3A3B3C4D4E4F4G4A4B4C5D5E5F5G5A5B5D6E6F6G6A6B6C6C7 * LED is written in the matrix system, and there are three lines of serial data and 24bits in each line from CASIO CHORD (0,0) to REG MEMO 8 (B, 7). 01234567 LEDT0-0CASIO CHORDFINGERDFULL RANGE C. INTERACTIVE.VARIATION 1VARIATION

39、 2VARIATION 3VARIATION 4 LEDT0-1rit.FADE IN/OUTINTRO 1INTRO 2ENDING 1 ENDING 2FILL-IN BACKFILL-IN NORM. LEDT0-2 FILL-IN NEXTBREAKSYNC. St/St 1 SYNC. St/St 2Start/Stop 1Start/Stop 2Start/Stop 3Start/Stop 4 LEDT0-3PATTERN SEQ.MULTI-TRACKEASY REC.SONG STUDIO8BEAT16 BEATPOPS LEDT1-0ROCKDANCEJAZZEUROPEAN

40、LATIN 1LATIN 2AMERICANVARI./WORLD LEDT1-1USERCOMBINATIONDRAWBAREFFECTSYNTHMIXERDISPLAY HOLD LEDT1-2REVERBCHORUSMASTERDSP 1DSP 2DSP 3DSP 4DSIK LEDT1-3ARPEGGITOR AUTO HARMO.LOWER 1LOWER 2UPPER 1UPPER 2SUSTAINSELECT LEDT2-0PIANOELEC PIANOCHROMATIC P.ORGANACCORDIONGUITARBASS LEDT2-1STRINGS/ORCHENSEMBLES

41、OLO BRASSBRASSSAXCLARINETFLUTE LEDT2-2 SYNTH-LEAD SYNTH-PADPERC/EFFECTSDRUM SETDRAEBARUSER TONE 1 USER TONE 2 LEDT2-3REG.MEMO 1 REG.MEMO 2 REG.MEMO 3 REG.MEMO 4 REG.MEMO 5 REG.MEMO 6 REG.MEMO 7 REG.MEMO 8 (L0*) (L1*) (L2*) (L3*) (L4*) (L5*) (L6*) (L7*) (L8*) (L9*) (LA*) (LB*) 8 POWER SUPPLY CIRCUIT

42、The power supply circuit generates seven voltages as shown in the following table. VDD voltage is always generated. The others are controlled by APO signal from the CPU. RESET CIRCUIT When batteries are set or an AC adapter is connected, the reset IC provides a low pulse to the CPU. The CPU then ini

43、tializes its internal circuit, and clears the working storage RAM. When the power switch is pressed, the CPU receives a low pulse of POWER signal. The CPU sends APO signal to the power supply circuit, also sends a reset signal to the DSP. Reset IC IC15 RN5VD40AA DSP LSI2 UPD914GM-3ED VDD Reset signa

44、l To power supply circuit VDD Battery set RESET VDD POWER From power switch NMI RESET RESETB APO SYSRST CPU LSI15 UPD703025AGC33 SCK1 NameVoltage(Manily) For operation of VDD+5.2V CPU, Reset IC, DSP, Sound source ROM, Working storage RAM, Effect RAM, LED driver DVD+5VCPU, Sustain jack, MIDI jack CVD

45、+5VDAC, Filter FVD+5VFDD Unit AVCC13.4VPower amplifier VEE+25VLCD driver VDA+5VConsole PCB 9 AFTER SENSOR ADJUSTMENT 1.AFTER TOUCH SENSOR ADJUSTMENT After touch sensor (code number: 1001 2063) is composed of felt, upper and lower electrode sheets, and both sided adhesive tape. Silicon spacer maintains a certain gap between the upper and the lower electrodes. Silver and carbon are printed on upper and lower electrodes. Moreover, a pressure sensor layer (white) is printed on the lower electrode. After touch sensors are stuck on the case key