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Casio GZ-50M Service Manual

Casio GZ-50M Manual Online:

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Casio GZ-50M User Manual
Casio GZ-50M User Guide
Casio GZ-50M Online Manual

Text of Casio GZ-50M User Guide:

  • — 2 — CONTENTS Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 MIDI Messages receivable with GZ-50M . . . . . . . . . . . . . . . . . . . . . 3 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Circuit Description . . . . . . . . . . . . . . . . . . . . .

  • Casio GZ-50M, — 3 — MIDI messages receivable with GZ-50M MIDI channel: 1 - 16 channel Note On/Off: Note number 0 - 127 Velocity 1 - 127 Program change: 0 - 127 on channel 1 -9 & 11 - 16 0 - 7 on channel 10 Pitch bend: 00H/00H - 7FH/7FH Control change: Modulation Control No. 1 0 - 127 Volume Control No. 7 0 - 127 Pan Control No. 10 0 (left) - 64 (center) - 127 (right) Expression Control No. 11 0 - 127 Hold Control No. 64 0 - 63: Off, 64 - 127: On Sostenuto Control No. 66 0 - 63: Off, 64 - 127: On Soft Control No. 67 0 - 63: Off, 64 - 127: On Effect

  • Casio GZ-50M, — 4 — The initial setteings Pitch bend: 0 Modulation: 0 (Off) Expression: 127 (Maximum) Sustain: 0 (Off) Sostenuto: 0 (Off) Soft: 0 (Off) Channel pressure: 0 (Off) RPN: Null The initial settings in The General MIDI system Channel 1 - 9 & 11 - 16 Program change: 000 (Piano) Pitch bend: LSB: 40H, MSB: 00H Modulation: 0 (Off) Volume: 100 Pan: 64 (Center) Expression: 127 (Maximum) Sustain: 0 (Off) Soft: 0 (Off) Effect depth: 127 (Maximum) Pitch bend sense: 02 (2 seminotes) Coarse tune: LSB:40H, MSB:00H Fine tune: LSB:40H, MSB:00H RPN: Null

  • Casio GZ-50M, — 5 — Model GZ-50M MIDI Implementation Chart Function ... Transmitted Recognized Remarks X X X X ❊❊❊❊❊❊❊❊❊❊❊❊❊❊ X ❊❊❊❊❊❊❊❊❊❊❊❊❊❊ X X X X X X X X X X X X X X X X X X ❊❊❊❊❊❊❊❊❊❊❊❊❊❊ X X X X X X X X X X Mode 1 : OMNI ON, POLY Mode 2 : OMNI ON, MONO O : Yes Mode 3 : OMNI OFF, POLY Mode 4 : OMNI OFF, MONO X : No Basic Default Channel Changed Default Mode Messages Altered Note Number: True voice Velocity Note ON Note OFF After Key's Touch Ch's Pitch Bender 01 06, 38 Control 07 Change 10 11 64 66 67 91 100, 101

  • — 6 — LIST OF TONES AND OCTAVE RANGES TONE NO./TONE NAME PIANO 000 PIANO 032 WOOD BASS 001 HARD PIANO 033 ELEC BASS 1 002 STUDIO PIANO 034 ELEC BASS 2 003 HONKY-TONK 035 FRETLESS BASS 004 ELEC PIANO 1 036 SLAP BASS 1 005 ELEC PIANO 2 037 SLAP BASS 2 006 HARPSICHORD 038 SYNTH-BASS 1 007 CLAVELECTRO 039 SYNTH-BASS 2 008 CELESTA 040 VIOLIN 009 GLOCKENSPIEL 041 VIOLA 010 MUSIC BO

  • Casio GZ-50M, — 7 — *1 Tone without scale. TONE NO./TONE NAME TONE NO./TONE NAME REED SYNTH-SFX 064 SOPRANO SAX 096 PEARL DROP C2 – C7 065 ALTO SAX 097 SOUNDTRACK C2 – C7 066 TENOR SAX 098 CRYSTAL C2 – C7 067 BARITONE SAX 099 ATMOSPHERE C2 – C7 068 OBOE 100 BRIGHTNESS C2 – C7 069 ENGLISH HORN 101 LABYRINTH C2 – C7 070 BASSOON 102 ECHOES C2 – C7 071 CLARINET 103 COSMIC SOUND C2 – C7 PIPE ETHNIC 072 PICCOLO 104 SITAR C3 – F5 073 FLUTE 105 BANJO C3 – C6 074 RECORDER 106 SHAMISEN D3 – G5 075 P

  • Casio GZ-50M, — 8 — LIST OF DRUM SOUNDS NOTE NO. DRUM INSTRUMENT NAME 35 Acoustic Bass Drum 36 Bass Drum 1 C#2 37 Side Stick 38 Acoustic Snare D#2 39 Hand Clap 40 Electric Snare 41 Low Floor Tom F#2 42 Closed Hi Hat 43 High Floor Tom G#2 44 Pedal Hi Hat 45 Low Tom A#2 46 Open Hi Hat 47 Low Mid Tom 48 High Mid Tom C#3 49 Crash Cymbal 1 50 High Tom 51 Ride Cymbal 1 52 Chinese Cymbal 53 Ride Bell F#3 54 Tambourine 55 Splash Cymbal G#3 56 Cowbell 57 Crash Cymbal 2 A#3 58 Vibraslap 59 Ride Cymbal 2 60 High Bongo C#4 61 Low Bongo 62 Mute High Conga D#4 63 Open High Conga 64 Low Conga 65 High Timbale F#4 66 Low Timbale 67 High Agogo G#4 68 Low Agogo 69 Cabasa A#4 70 Maracas 71 Short Whistle 72 Long Whis

  • Casio GZ-50M, — 9 — BLOCK DIAGRAM Working Storage RAM (64K-bit) LSI106 SRM2264LM90-B EA0 ~ EA14 ED0 ~ ED7 RA0 ~ RA19 RD0 ~ RD15 WCK1 SLOP BCK D/A Converter LSI101 UPD6376GS Filter IC103 Main Volume Headphone Amplifier IC101 LA4525 CPU LSI104 HD6433298A42F A0 ~ A14 Power Supply Circuit D102, D103 Q101~Q105 VCC AVDD VDD DVDD Effect RAM (256K-bit) LSI102 LC33832M-70 D0~D7 Headphone A0 ~ A14 A0 ~ A3 MIDI IN Filter IC103 Power Switch POWER Reset IC IC104 RH5VL36A RESET Photocoupler IC106 PC900VP Line Out Amplifier IC102 M5218AFP Mute Circuit Q108, Q109 Line Out DC IN Sound

  • Casio GZ-50M, — 10 — CPU (LSI104: HD6433298A42F) The 16-bit CPU contains a 32k-bit ROM, a 1k-bit RAM, seven 8-bit I/O ports and MIDI interfaces. The CPU receives MIDI message and interprets it using the working storage RAM. For instance, when receiv- ing NOTE ON message, the CPU sends the note number and its velocity to the DSP in order to produce sound of that note. The following table shows the pin functions of LSI104. CIRCUIT DESCRIPTION DIGITAL SIGNAL PROCESSOR (LSI03: HG51B155FD-1) Upon receipt of a note number and it

  • Casio GZ-50M, — 11 — Pin No. Terminal In/Out Function 1 ~ 8 CD0 ~ CD7 In/Out Data bus 9, 10 CE1, TRSB — Not used 11 GND7 In Ground (0V) source 12 CK16 Out Terminal for 24.576 MHz clock check point 13 VCC1 In +5V source 14 CK0 In Clock input. Connected to terminal CK16. 15 TCKB — Not used 16 VCC1 In +5V source 17 GND1 In Ground (0V) source 18, 19 XT0, XT1 In/Out 24.576 MHz clock input/output 20 SGL In System control terminal. Single chip system: Open 21 CCSB In Chip select s

  • Casio GZ-50M, — 12 — 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 120 ~ 122 ED8 ~ ED10 — Not sued 123 ~ 130 ED0 ~ ED7 In/Out Data bus for the effect RAM 131 GND5 In Ground (0V) source 132 ~ 134 — — Not used. Connected to ground. 135, 136 — — Not used Block diagram of DSP and DAC circuit DAC (LSI101: UPD6376GS) The DAC receives 16-bit serial data and two clocks output from the DSP. The DAC converts the data into analog waveforms b

  • Casio GZ-50M, — 13 — VDD RESET CPU LSI104 HD6433298A42F Reset IC IC104 RH5VL36A Working Storage RAM LSI106 LC3564SM-85 DSP LSI103 HG51B155FD-1 VDD DVDD VDD -RESET POWER From power switch -NMI To power supply circuit Power ON signal P42 Pin No. Terminal In/Out Function 1 SEL In Mode selection terminal. Connected to ground. 2 D.GND In Ground (0V) source for the internal digital circuit 3 NC Not used. 4 DVDD In +5V source for the internal digital circuit 5 A.GND In Ground (0V) source for the right chan

  • Casio GZ-50M, — 14 — 1 2 3 CH1 CH2 4 CH1 5 6 7 8 9 CH1 CH2 1 2 Voltage VDD Emitter of Q105 Initial reset signal RH5VL36A pin 1 3 4 5 Power ON trigger -NMI HD6433298A42F pin 5 Power ON signal HD6433298A42F pin 59 Reset signal HD6433298A42F pin 3 6 7 8 Word clock WOK1 UPD6376GS pin 13 Data SI (Note OFF) UPD6376GS pin 15 Bit clock BOK UPD6376GS pin 16 9 MIDI data PC900VP pin 4 Basic channel Note No. Velocity : 1 : 60 (C3) : 127 (Maximum) 0.1 s CH1: CH2: 5 V5 V 5 µs 5 VCH1: 5 VCH2: 5 VCH3: 5 VCH1: 2 ms 0.1 s

  • Casio GZ-50M, — 15 — 0 A B CH1 CH2 C CH1 D E CH2 0 A DAC output UPD6376GS pin 11 Filter output M5218AFP pin 1 B C Line out amp. input (L-ch) C111 Line out amp. output (L-ch) C161 D E Headphone amp. input LA4525 pin 7 Headphone amp. output LA4525 pin 1 Program change (Tone No) Note No. (Key) Velocity : 078 (Whistle) : 81 (A4) : 127 (Maximum) CH1 CH2 1 ms CH1: CH2: 1 ms 50 mV ~ 50 mV ~ CH1: CH2:50 mV ~ .5 V ~ CH1: CH2:10 mV ~ 1 V ~ 1 ms

  • Casio GZ-50M, — 16 — PCB VIEW AND CHECK POINTS Top View J104 IC106 R177 D107 R181R182 Q110R176 R178 C188 C162 C164 D109 R184 C137 C163 J103 J102 L104 J101 D104 C161 R171 Q108 R173 D105 IC104 C160 R170 Q109 R175 D106 X101 C152 R150 R149 R145 C140 R144 X102 LSI104 C138 R158 R159 C182 C153 LSI106 R160 C156 LSI103 LSI101 C157 C125 C136 C135 C117 Q105 C120 C105 R109 B E R119 C118 C110 Q103 C106 C131 C133 C130 R130 R134 IC103 C123 C103 C102 C122 3 C101 FB111 CB101 1 IC101 VR101 C111 C113 C104 C121 C116 C119 D102 C108 C109 C114 R185 C183C185 1 5 FB112 R118 C107 CA101 C187 C184 R112 C186 R117 C112 2 9 8 7 6 10 11 15121

  • 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 for Spare parts Supply", published seperately. 3. The numbers in item column correspond to the same numbers in drawing. PARTS LIST GZ-50M

  • FOB Japan N Item Code No. Parts Name Specification Q N.R.Yen R Unit Price Main PCB M304-MA1M N 1 6923 7150 PCB ass'y M304-MA1M with M140210*1 1 7,880 A M304-MA2M N LSI101 2114 4221 LSI UPD6376GS-E1 1 200 A N LSI102 2012 0777 LSI LC33832M-70-TLM 1 410 A N LSI103 2012 1316 LSI HG51B155FD-1 1 1,160 A N LSI104 2012 0462 LSI HD6433298A42F 1 860 A N LSI105 2012 1498

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