Casio GZ-5 Manuale Utente

GM SOUND KEYBOARDGZ-500(with price)GZ-500

— 10 —Name Voltage For operation ofVDD +5 V CPU, Reset IC, Working storage RAMDVDD +5 V DSP, Key touch LSI, Sound source ROM, Effect RAM, KO siginal

— 11 —CPU (LSI106: HD6433298A42F)The 16-bit CPU contains a 32k-bit ROM, a 1k-bit RAM, seven 8-bit I/O ports, an A/D convertor and MIDIlinterfaces. The

— 12 —Pin No. Terminal In/Out Function1 ~ 8 CD0 ~ CD7 In/Out Data bus9, 10 CE1, TRSB Not used11 GND7 In Ground (0V) source12 CK16 Out Term

— 13 —Block diagram of DSP and DAC circuitPin No. Terminal In/Out Function106 EOEB Out Read enable signal output for the effect RAM108 VCC7 In

— 14 —CRDBCWRBCKICCSBCD0CD7CA0 ~ CA2First contactSecond contactKC0KC7FI0FI7SI0SI7Key input signalKey scan signal~Data busAddress busKey ControllerLSI1

— 15 —AVDD1K1K 1KC222(H)C103(H)AGAG1KAGTo main volume-+IC105M5218APR10V22µC333(H)Q107/1082SC174018K50V1µFrom the DAC1KAGAVDDThe following table shows

— 16 —IC102TC74HC174AFLGCPULSI106HD6433298A42FLVDDP40P41KP0 ~KP5(KO0 ~ KO5)IC371BA612LED DriverQ104 ~Q111LED DriverLS0 ~ LS7La ~ Lg, LpKO Signal Gener

— 17 —MAJOR WAVEFORMS12CH1CH2A . 1 sCH1: CH2:5 V5 V34CH155 VCH2A . 1 s5 VCH1: CH2:67CH1CH2CH38A 20 µs5 VCH1: 5 VCH2: 5 VCH3:90CH1CH2CH3AA 10 ms5 V

— 18 —SCHEMATIC DIAGRAMSAMP./VOLUME PCBs JCM715-MA2M/MA3M

— 19 —MAIN PCB JCM715-MA1M6 7 81716151412131253491011

— 2 —ELECTRICALCurrent drain with 9 V DC: No sound output 294 mA ± 20% Maximum volume 940 mA ± 20%with 32 polyphonic notes in tone No. 078Volu

— 20 —CONSOLE PCBs JCM715-CN1M/2M/3M

— 21 —KEYBOARD PCBs M616T-KY1M/KY2M

— 22 —EXPLODED VIEW12141391011637111151716191820220-120-224423228521

Notes: 1. Prices and specifications are subject to change with-out prior notice.2. As for spare parts order and supply, refer to the"GUIDEBOOK fo

FOB JapanN Item Code No. Parts Name Specification Q N.R.Yen R Unit PriceMain PCBN16923 6180 PCB ass'y M715-MA1M M140244*117,810 AN LSI101 20

FOB JapanN Item Code No. Parts Name Specification Q N.R.Yen R Unit Price2301 0101 Diode 1S2473-T-77-T 58 8 CBenderVR102 2765 1141 Rotary volume R

MA0800751A

— 3 —OPERATIONSETTING UP THE KEYBOARDThe initial settingsTone: 000 (Piano) Channel 1 - 9 & 11 - 16dr0 (Drum set 0) Channel 10Modulation: 0 (Off)MI

— 4 —The initial settings in The General MIDI systemChannel 1 - 9 & 11 - 16 Channel 10Program change: 000 (Piano) Drum set No.: 0Pitch bend: LSB:

— 5 —Octave shift setting and keyboard rangeOperation 2The MIDI messages listed in the following table are transmitted when completing the setting ope

— 6 —The initial settings of MIDI control changePitch bend: +/- 0 (Center)Modulation: 0 (Off)Expression: 127 (Maximum)Sustain: 0 (Off)Sostenuto: 0 (Of

— 7 —Transmittable MessagesNote No.: 12 ~ 72 (Oct. shift -2), 24 ~ 84 (Oct. shift -1)36 ~ 96 (Oct. shift 0), 48 ~ 108 (Oct. shift 1)Velocity: 1 ~ 127N

— 8 —BLOCK DIAGRAMKC0 ~ KC7SI0 ~ SI7FI0 ~ FI7Key ControllerLSI107HG52E35PWorking Storage RAM(64K-bit)LSI105SRM2264LM90-BKO1 ~ KO3LED driverIC371BA612

— 9 —Note: Each key has two contacts, the first conatct (1) and second contact (2).CIRCUIT DESCRIPTIONKEY MATRIXNOMENCLATURE OF KEYSKC0 KC1 KC2 KC3 KC