Casio GZ-50M Service Manual Download Page 9 | Manualshive

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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 Source ROM

(16M-bit)

LSI105

TC5316200CF-C117

DSP

LSI103

HG51B115FD

Power ON signal

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Summary of Contents for GZ-50M

Page 1: ...GM SOUND MODULE GZ 50M with price POWER VOLUME GM SOUND MODULE MIN MIDI MONITOR DEMO PHONES MAX GENERAL...

Page 2: ...ol Analog volume MIDI monitor LED Tuning Center 440 Hz Terminals Headphone Jack Output impedance 68 Output voltage 0 3 V rms MAX Line Out Jack Output impedance 2 K Output voltage 1 5 V8rms MAX MIDI IN...

Page 3: ...123 Registered Parameter Number RPN Control No 36 LSB No 37 MSB Pitch bend sense Control No 100 00H Control No 101 00H Data entry Control No 6 00H 0CH Control No 36 00H Fine tuning Control No 100 01H...

Page 4: ...l 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...

Page 5: ...ommon Song Sel Tune System Clock Real Time Commands Aux Local ON OFF Messages All notes OFF Active Sense Reset Remarks 2 Vibrato effect is obtained when received either message of modulation or channe...

Page 6: ...GAN 052 CHOIR 021 ACCORDION 053 MOON VOICE 022 HARMONICA 054 SYNTH VOICE 023 BANDNEON 055 ORCHESTRA HIT 024 GUT GUITAR 056 TRUMPET 025 ACOUS GUITAR 057 TROMBONE 026 JAZZ GUITAR 058 TUBA 027 ELEC GUITA...

Page 7: ...080 SYNTH LEAD 1 112 BELLS C5 C6 081 SYNTH LEAD 2 113 AGOGO C4 C5 082 CALLIOPE 114 STEEL DRUM E3 E5 083 POWER LEAD 115 WOOD BLOCK C4 C5 084 METAL LEAD 116 TAIKO C4 C5 085 ANGEL CHOIR 117 TOM C4 C5 08...

Page 8: ...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...

Page 9: ...SI104 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...

Page 10: ...sound data using the effect RAM The following table shows the pin functions of LSI103 Pin No Terminal In Out Function 1 P50 TXD Not used 2 P51 RXD In MIDI signal input 3 P52 SCK Out Reset signal outp...

Page 11: ...enable signal 29 32 Not used 33 RESB In Reset signal input 34 TESB In Not used Connected to 5V 35 39 Not used 40 49 52 57 RD0 RD15 In Data bus for the sound source ROM 50 VCC2 In 5V source 51 GND2 In...

Page 12: ...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 by each channel and output them separately The...

Page 13: ...12 A GND In Ground 0V source for the left channel 13 LRCK In Word clock input 14 LRSEL In Not used Connected to ground 15 SI In Sound data input 16 CLK In Bit clock input Name Voltage For operation o...

Page 14: ...er 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 Bas...

Page 15: ...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 1...

Page 16: ...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 C...

Page 17: ...17 SRM2264LM90 SCHEMATIC DIAGRAM PCBs JCM304 MA1M MA2M 9 4 5 3 2 11 10 13 12 14 15 7 8 6 1 8 4 8 0 7 3 5 0 5 6 7 2 7 8 0 0 0 7 5 0 5 6...

Page 18: ...18 EXPLODED VIEW 3 1 2 5 4 6...

Page 19: ...e 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 n...

Page 20: ...Q109 2253 0651 Chip transistor 2SD1757KT146S 2 18 B N D102 D103 2360 2541 Chip zener diode DTZTT115 6B 4 15 B D105 D106 N D104 2390 2058 Chip diode 1SR154 400TE25 1 20 C N D107 D108 2390 1820 Chip di...

Page 21: ...MA0700951A...

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