Casio MZ-2000 User Manual

ELECTRONIC KEYBOARDMZ-2000MAY. 2000MZ-2000REVERBSEQUENCER8 BEATSPLIT POINTACCOMPINTERACTIVE16 BEATPOPSDANCEJAZZLATIN1LATIN2FULL RANGECHORDFINGEREDCASI

— 9 —AFTER SENSOR ADJUSTMENT1. AFTER TOUCH SENSOR ADJUSTMENTAfter touch sensor (code number: 1001 2063) is composed of felt, upper and lower electrode

— 10 —4. After touch sensor adjustmentMake sure to perform the following adjustments after replacing after touch sensor.4-1. Necessary equipment• Volt

— 11 —4-3. Adjustment method4-3-1. Preparations1) Turn adjustment VR’s VR951 (OFFSET) and VR952 (GAIN) on PCB SN1M counterclockwise(Fig. 4).2) Connect

— 12 —4-3-3. Center value (Offset value) adjustmentAdjustment for the center (offset) value of the variable range of after touch sensor (refer to Fig.

— 13 —DIAGNOSTIC PROGRAM To enter diagnostic mode1. While pressing down "PATTERN SEQUENCER" and "MODE" buttons, press"POWER&

— 14 —2. Press buttons in the following order. When the pressed button functions properly, a pip soundsand display indicates as follows.ASSIGNABLE [SW

— 15 — Keyboard check1. Depress keys in the following order.1) White key C2,D2,E2,...A6,B6,C72) Black key A#6,G#6,F#6,...

— 16 — Sustain pedal check1. Connect the Sustain pedal(SP-2 or SP-10, option).2. Depress and release the pedal.3. When the sustain circuit is normal,

— 17 —PRINTED CIRCUIT BOARDSMain PCB JCM765-MA1MTop viewBottom view

— 18 —Sub PCB JCM765-MA2M

— 1 —CONTENTSPageSpecifications ...

— 19 —SCHEMATIC DIAGRAMSMain PCB JCM765-MA1M (1)

— 20 —Main PCB JCM765-MA1M (2)

— 21 —Sub PCB JCM765-MA2M

— 22 —Console PCB JCM765-CN1M

— 23 —Console PCB JCM765-CN2M

— 24 —Console PCBs JCM765-CN3M/CN4M/CN7M/CN8M/CN10M/CN11M

— 25 —Console PCB JCM765-CN5M

— 26 —Console PCBs JCM765-CN6M/CN9M

— 27 —Keyboard PCBs JCM619T-KY1M/KY2M

— 28 —Sensor PCB JCMAFT - SN1 ~ 2M

— 2 —Punch-in Functions: Manual punch-in; auto punch-inEditing Functions: Song editing; track editing; event editingPattern SequencerUser Pattern Area

— 29 —EXPLODED VIEW1728R-125274330412723222826394034353337383229284236454418818145251R-2R-3R-5R-6R-8R-8R-7R-467464419320213195435350492531161548474847

— 30 —Notes: This parts list does not include the cosmetic parts, whichparts are marked with item No. "R-X" in the explodedview.Contact our

PARTS PRICE LISTMZ-2000N Item Code No. Part Name Specification Q Price Code R RemarksMain PCBN 1 10021540 PCB ASSY/MA1M TK-M241191*1(M765) 1 FA AD1 23

N ItemCode No. Part Name SpecificationQPrice CodeR RemarksIC309 21141421 IC/PHOTO COUPLER PC900V 1 AK CIC310 21051260 IC/C-MOS TC74HCU04AP 1 AC CN IC3

N ItemCode No. Part Name SpecificationQPrice CodeR RemarksN 21 10021386 PLATE/SHIELD M341212-1 1 AO CN 22 10006283 BUTTON A/TACT(4 BUTTONS) M341102-1

CASIO TECHNO CO.,LTD.Overseas Service DivisionNishi-Shinjuku Kimuraya Bldg. 1F5-25, Nishi-Shinjuku 7-ChomeShinjuku-ku, Tokyo 160-0023, Japan

— 3 —ELECTRICALCurrent drain with 16 V DC: No sound output 810 mA ± 20 % Maximum volume 2000 mA ± 20 %Condition : 1KHz-Sin wave by which the s

— 4 —BLOCK DIAGRAMBender WheelPower SwitchAfter SensorConsole LEDSensor CircuitHOSTIN OUTEXP. PEDALkey boardKey ControllerTC190C020AF-001LSI1Power Amp

— 5 —CIRCUIT DESCRIPTIONKEY MATRIXBUTTON MATRIX01234567KS00 MODEINTERACTIVE...SPLIT POINT VARIATION 1 VARIATION 2 VARIATION 3 VARIATION 4KS01 rit.FADE

— 6 —01234567KS10 REVERB CHORUS MASTER DSP 1 DSP 2 DSP 3 DSP 4KS11 MIDI HELP DEMO DISKKS12ARPEGGITOPLOWER 1 UPPER 1AUTO HARMO.LOWER 2 UPPER 2 SUSTAINK

— 7 —LED MATRIXNote: Each key has two contacts, the first conatct (1) and second contact (2).NOMENCLATURE OF KEYSKeySecond contact (2)First

— 8 —POWER SUPPLY CIRCUITThe power supply circuit generates seven voltages as shown in the following table. VDD voltage is alwaysgenerated. The others