Casio GZ-500 - Manuals - manualsarea.com

Page 2 - ELECTRICAL; CONTENTS; GENERAL

— 2 — ELECTRICAL Current drain with 9 V DC: No sound output 294 mA ± 20% Maximum volume 940 mA ± 20% with 32 polyphonic notes in tone No. 078Volume; maximum, Velocity: maximum Phone output level (Vrms with 8 load each channel): with key A5 pressed in tone No. 078 100 mV ± 20% Line output level (Vrms...

Page 3 - OPERATION; SETTING UP THE KEYBOARD; The initial settings

— 3 — OPERATION SETTING UP THE KEYBOARD The initial settings Tone: 000 (Piano) Channel 1 - 9 & 11 - 16 dr0 (Drum set 0) Channel 10 Modulation: 0 (Off) MIDI control change Volume: 100 Pan: 64 (Center) Expression: 127 (Maximum) Effect depth: 127 (Maximum) Pitch bend sense: 2 Coarse tune: 0 (Center...

Page 4 - The initial settings in The General MIDI system; TRANSMITTING MIDI MESSAGES

— 4 — The initial settings in The General MIDI system Channel 1 - 9 & 11 - 16 Channel 10 Program change: 000 (Piano) Drum set No.: 0 Pitch bend: LSB: 40H, MSB: 00H Modulation: 0 (Off) Volume: 100 Volume: 100 Pan: 64 (Center) Pan: 64 (Center) Expression: 127 (Maximum) Expression: 127 (Maximum) Su...

Page 5 - Changing Program Change / Control Change

— 5 — Octave shift setting and keyboard range Operation 2The MIDI messages listed in the following table are transmitted when completing the setting operation.The setting affects only on the currently selected MIDI channel. First select the desire MIDI channelbefore changing settings. Selecting a MI...

Page 6 - The initial settings of MIDI control change; RECEIVING MIDI MESSAGES

— 6 — The initial settings of MIDI control change Pitch bend: +/- 0 (Center) Modulation: 0 (Off) Expression: 127 (Maximum) Sustain: 0 (Off) Sostenuto: 0 (Off) Soft: 0 (Off) Channel pressure: 0 (Off) RPN: null Operation 3Messages of Digital Effect Type, which are system exclusive messages, are transm...

Page 8 - BLOCK DIAGRAM

— 8 — BLOCK DIAGRAM KC0 ~ KC7 SI0 ~ SI7 FI0 ~ FI7 Key Controller LSI107 HG52E35P Working Storage RAM (64K-bit) LSI105 SRM2264LM90-B KO1 ~ KO3 LED driver IC371 BA612 LS0 ~ LS7 Buttons KI1 ~ KI5 Power Switch IN EA0 ~ EA14 ED0 ~ ED7 DSP LSI102 HG51B115FD RA0 ~ RA19 RD0 ~ RD15 Sound Source ROM (16M-bit)...

Page 9 - CIRCUIT DESCRIPTION; KEY MATRIX; NOMENCLATURE OF KEYS

— 9 — Note: Each key has two contacts, the first conatct (1) and second contact (2). CIRCUIT DESCRIPTION KEY MATRIX NOMENCLATURE OF KEYS KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7 FI0 C2 (1) C#2 (1) D2 (1) D#2 (1) E2 (1) F2 (1) F#2 (1) G2 (1) SI0 C2 (2) C#2 (2) D2 (2) D#2 (2) E2 (2) F2 (2) F#2 (2) G2 (2) FI1 G...

Page 10 - BUTTON MATRIX

— 10 — Name Voltage For operation of VDD +5 V CPU, Reset IC, Working storage RAM DVDD +5 V DSP, Key touch LSI, Sound source ROM, Effect RAM, KO siginal generator AVDD +5V DAC, Filter LVDD +4.5 V LED Driver VCC +9 V Power amplifier, Pilot lamp VC +9 V Power amplifier BUTTON MATRIX KI1 KI2 KI3 KI4 KI5...

Page 13 - Block diagram of DSP and DAC circuit

— 13 — Block diagram of DSP and DAC circuit Pin No. Terminal In/Out Function 106 EOEB Out Read enable signal output for the effect RAM 108 VCC7 In +5V source 111 ECEB Out Chip select signal output for the effect RAM 113 ~ 117 ED11 ~ ED15 Not used 118 VCC4 In +5V source 119 GND4 In Ground (0V) source...

Page 15 - FILTER BLOCK

— 15 — AVDD 1K 1K 1K C222(H) C103(H) AG AG 1K AG To main volume - + IC105M5218APR 10V22 µ C333(H) Q107/1082SC1740 18K 50V1 µ From the DAC 1K AG AVDD The following table shows the pin functions of LSI107. Pin No. Terminal In/Out Function 1 REQB Out Not used 2, 3, 60 ~ 63 FI8 ~ FI10, SI8 ~ SI10 In Not...

Page 16 - LED DRIVING

— 16 — IC102 TC74HC174AF LG CPU LSI106 HD6433298A42F LVDD P40 P41 KP0 ~KP5 (KO0 ~ KO5) IC371 BA612 LED Driver Q104 ~Q111 LED Driver LS0 ~ LS7 La ~ Lg, Lp KO Signal Generator POWER AMPLIFIER (IC402: LA4598) The power amplifier is a two-channel amplifier with standby switch. The following table shows ...

Page 17 - MAJOR WAVEFORMS

— 17 — MAJOR WAVEFORMS 1 2 CH1 CH2 A . 1 s CH1: CH2: 5 V 5 V 3 4 CH1 5 5 V CH2 A . 1 s 5 V CH1: CH2: 6 7 CH1 CH2 CH3 8 A 20 µ s 5 V CH1: 5 V CH2: 5 V CH3: 9 0 CH1 CH2 CH3 A A 10 ms 5 V CH1: 5 V CH2: 5 V CH3: B C CH1 CH2 CH3 D 5 V CH1: 5 V CH2: 5 V CH3: A 1 µ s E F CH1 CH2 CH1: 20 mV ~ CH2: 20 mV ~ A...

Page 18 - SCHEMATIC DIAGRAMS

— 18 — SCHEMATIC DIAGRAMS AMP./VOLUME PCBs JCM715-MA2M/MA3M

Page 22 - EXPLODED VIEW

— 22 — EXPLODED VIEW 12 14 13 9 10 11 6 3 7 11 1 15 17 16 19 18 20 2 20-1 20-2 24 4 23 22 8 5 21

Page 23 - PARTS LIST

N o t e s : 1 . P r i c e s a n d s p e c i f i c a t i o n s a r e s u b j e c t t o c h a n g e w i t h -o u t p r i o r n o t i c e . 2 . A s f o r s p a r e p a r t s o r d e r a n d s u p p l y , r e f e r t o t h e" G U I D E B O O K f o r S p a r e p a r t s S u p p l y " , p u b l i ...