(with price)
GZ-500
GZ-500
GM SOUND KEYBOARD
Download from Www.Somanuals.com. All Manuals Search And Download.
OPERATION
SETTING UP THE KEYBOARD
Item
Setting
Setting operation
System Reset
1*
1. Press the control button and repeat it until the display
shows "Srt".
"SUr" and "Srt" will appear alternately on the display.
2. Press the + key.
Assignable Jack Sustain pedal
Sostenuto pedal
1. Press the control button and repeat it until the display
shows "JAC".
2. Using the +/- key, select "SUS" on the dispaly.
1. Press the control button and repeat it until the display
shows "JAC".
2. Using the +/- key, select "SoS" on the dispaly.
Soft pedal
1. Press the control button and repeat it until the display
shows "JAC".
2. Using the +/- key, select "SFt" on the dispaly.
GM Reset 3*
2*
1. Press the MIDI button and repeat it until the display shows
"Grt".
"SUr" and "Grt" will appear alternately on the display.
2. Press the + key.
3. Press the + key again.
Notes: 1* See the initial settings list as shown below.
2* See the initial settings in The General MIDI system on next page.
3* The exclusive message of "GM system on" will be tramsmitted when completing the operation.
System exclusive: GM system on
[F0][7E][7F][09][01][F7]
The initial settings
Tone:
000 (Piano)
dr0 (Drum set 0)
0 (Off)
Channel 1 - 9 & 11 - 16
Channel 10
Modulation:
MIDI control change
Volume:
100
Pan:
64 (Center)
Expression:
127 (Maximum)
Effect depth:
127 (Maximum)
Pitch bend sense:
Coarse tune:
2
0 (Center)
Fine tuning:
0 (Center)
Digital effect:
MIDI channel:
Channel On/Off:
Octave shift:
E-0 (Digital effect 0)
01
On
0
Modulation depth:
Touch response:
Velocity at touch
response OFF:
Assignable jack:
Local control On/Off:
064
r-0 (Touch curve 0)
100
SUS (Sustain pedal)
On
— 3 —
Download from Www.Somanuals.com. All Manuals Search And Download.
The initial settings in The General MIDI system
Channel 1 - 9 & 11 - 16
Channel 10
Program change:
Pitch bend:
Modulation:
Volume:
Pan:
Expression:
Sustain:
000 (Piano)
LSB: 40H, MSB: 00H
0 (Off)
Drum set No.:
0
100
Volume:
Pan:
Expression:
100
64 (Center)
127 (Maximum)
0 (Off)
64 (Center)
127 (Maximum)
Soft:
0 (Off)
Soft:
0 (Off)
Effect depth:
Pitch bend sense:
Coarse tune:
Fine tune:
127 (Maximum)
02 (2 seminotes)
LSB:40H, MSB:00H
LSB:40H, MSB:00H
Null
Effect depth:
127 (Maximum)
RPN:
Channel pressure:
0 (Off)
TRANSMITTING MIDI MESSAGES
Operation 1
MIDI messages of note on/off, velocity and modulation are transmitted no matter which MIDI channel is
selected.
Note on/off message is transmitted when the corresponding key is pressed/released.
Use the Octave Shift Button, shift the octave range up or down so that GZ-500 is able to send note
numbers 17 to 108 but the keyboard has 61 keys only.
Velocity is also transmitted when a key is pressed. GZ-500 sends the velocity in accordance with the
strength of the pressed key and the selected touch curve (sensitivity).
Data of modulation is transmitted when the corresponding wheel is operated.
MIDI Message
Setting
Octave shift
Setting operation
1. Press the octave shift button.
Note On/Off
2. Using the +/- key, select an octave range -2 to 1 you want.
Velocity
Velocity curve
1. Press the control button and repeat it until the display
shows "tCH".
2. Using the 10-key, enter a number from 0 to 7.
Touch response OFF 1. Press the control button and repeat it until the display
shows "tCH".
2. Using the 10-key, enter a number 0.
3. Press the - key. The display will show "oFF".
Velocity at touch
response OFF
1. Press the control button and repeat it until the display
shows "tCH".
2. Using the 10-key, enter a 3-digit number from 001 to 127.
Modulation
Modulation depth
1. Press the control button and repeat it until the display
shows "dEP".
2. Using the 10-key, enter a 3-digit number from 001 to 127.
— 4 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Octave shift setting and keyboard range
1
0
-1
-2
C4 (60)
Octave range when set to -2
Octave range when set to -1
Octave range when set to 0
Octave range when set to 1
Operation 2
The 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 channel
before changing settings.
Selecting a MIDI channel
1. Press the MIDI button.
The display shows the current MIDI channel, eg. "C01" means Channel 1.
2. Using the 10-key, enter a number from 1 to 16.
Changing Program Change / Control Change
MIDI Message
Program change
Setting Operation
1. Reffering to the tone number list on the panel, find the 3-digit tone
number you desire.
2. Press the tone button.
3. Using the 10-key, enter the 3-digit number.
Control change
Volume 1. Press the MIDI button and repeat it until "voL" appears on the display.
2. Using the 10-key, enter a 3-digit number from 000 to 127.
Pan 1. Press the MIDI button and repeat it until "PAn" appears on the display.
2. Using the 10-key, enter a 3-digit number from 000 to 127.
Expression 1. Press the MIDI button and repeat it until "EPS" appears on the display.
2. Using the 10-key, enter a 3-digit number from 000 to 127.
Effect depth 1. Press the MIDI button and repeat it until "EFt" appears on the display.
2. Using the 10-key, enter a 3-digit number from 000 to 127.
Fine tune 1. Press the MIDI button and repeat it until "tUn" appears on the display.
2. Using the 10-key and the - key, enter a 2-digit number from -50 to 50.
Transpose 1. Press the MIDI button and repeat it until "trn" appears on the display.
2. Using the 10-key and the - key, enter a 2-digit number from -12 to 12.
All notes off 1. Press the MIDI button and repeat it until "Ano" appears on the display.
"SUr" and "Ano" will appear alternately on the display.
2. Press the + key.
3. Press the + key again to transmit the message.
All sounds off 1. Press the MIDI button and repeat it until "ASo" appears on the display.
"SUr" and "ASo" will appear alternately on the display.
2. Press the + key.
3. Press the + key again to transmit the message.
Reset all controllers 1. Press the MIDI button and repeat it until "rAC" appears on the display.
"SUr" and "rAC" will appear alternately on the display.
2. Press the + key.
3. Press the + key again to transmit the message.
— 5 —
Download from Www.Somanuals.com. All Manuals Search And Download.
The initial settings of MIDI control change
Pitch bend:
Modulation:
Expression:
Sustain:
+/- 0 (Center)
0 (Off)
127 (Maximum)
0 (Off)
Sostenuto:
Soft:
0 (Off)
0 (Off)
Channel pressure:
RPN:
0 (Off)
null
Operation 3
Messages of Digital Effect Type, which are system exclusive messages, are transmitted when completing
the following operation.
Transmitting a digital effect type
1. Press the tone button.
2. Press the digital effect button once when the digital effect indicator is off.
Press the digital effect button twice when the digital effect indicator is lighting up.
3. Using the 10-key, enter a number from 0 to 9.
4. The display shows the degital efffect type entered, eg. "E_3" means digital effect 3 (Chorus)
5. Wait for about a few seconds unitl the display show the tone number at Step 1.
System exclusive: Effect change
[F0][44][0B][09][xx][F7]
[xx]: [00] - [09], [0F]
[00]: Reverb1 (Stage)
[01]: Reverb2 (Hall)
[02]: Reverb3 (Room)
[03]: Chorus
[04]: Tremolo
[05]: Phase shifter
[06]: Organ speaker
[07]: Enhance
[08]: Flanger
[09]: EQ Loundness
[0F]: Effect OFF
RECEIVING MIDI MESSAGES
The MIDI monitor blinks during receiving a MIDI message.
To recognize Note On/Off messages, set a MIDI channel on.
Setting on/off of a MIDI channel
1. Press the MIDI channel button.
2. Press the channel on/off button.
The LED lights when the MIDI channel is on.
The LED goes out when the MIDI channel is off.
Active sensing
This message checks if the MIDI cable is disconnected.
Once GZ-500 has received this message, it always counts time of an interval to a next MIDI message.
In case when GZ-5 receives no MIDI message for 420 msec of time, it will stop sound output and reset all
controllers, then it will cancel the function of active sensing.
— 6 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Transmittable Messages
Note No.:
12 ~ 72 (Oct. shift -2), 24 ~ 84 (Oct. shift -1)
36 ~ 96 (Oct. shift 0), 48 ~ 108 (Oct. shift 1)
1 ~ 127
Velocity:
Note Off:
velocity 0
Program Change:
Pitch Bend:
0 ~ 127 (Channels 1 - 9 & 11 - 16), 0 ~ 7 (Channel 10)
00H / 00H ~ 7FH / 7FH
Control Change:
Modulation
0 ~ 127
Volume
Pan
0 ~ 127
0 ~ 127
Expression
Sustain
Sosutenuto
Soft
0 ~ 127
0: Off, 127: On
0: Off, 127: On
0: Off, 127: On
0 ~ 127
Effect Depth
Pitch Bend Sense 00H / --H ~ 0CH / --H (12 seminotes)
Coarse Tune
Fine Tune
34H / --H ~ 40H / --H ~ 4CH / --H
(-12 seminotes) ~ (center) ~ (+12 seminotes)
20H / 00H ~ 40H / 00H ~ 60H / 00H
(-50 cents) ~ (center) ~ (+50 cents)
All Notes Off
All Sounds Off
Reset All Controllers
Effect Change
Exclusive:
General MIDI On
Receivable Messages
Note No.:
Velocity:
Note Off:
0 ~ 127
1 ~ 127
velocity 0
Program Change:
Pitch Bend:
Control Change:
0 ~ 127(Channels 1 - 9 & 11 - 16), 0 ~ 7 (Channel 10)
00H / 00H ~ 7FH / 7FH
Modulation
Volume
0 (0 cent) ~ 127 (+/-50 cents)
0 ~ 127
Pan
Expression
Sustain
Sosutenuto
Soft
Effect Depth
0 (Left) ~ 64 (Center) ~ 127 (Right)
0 ~ 127
0 ~ 63: Off, 64 ~ 127: On
0 ~ 63: Off, 64 ~ 127: On
0 ~ 63: Off, 64 ~ 127: On
0 ~ 127
Pitch Bend Sense 00H / --H ~ 0CH / --H (12 seminotes)
Coarse Tune
Fine Tune
34H / 00H ~ 40H / 00H ~ 4CH / 00H
(-12 seminotes) ~ (center) ~ (+12 seminotes)
20H / 00H ~ 40H / 00H ~ 60H / 00H
(-50 cents) ~ (Center) ~ (+50 cents)
RPN Null
All Notes Off
All Sounds Off
Reset All Controllers
Channel Pressure: 0 (0 cent) ~ 127 (+/-50 cents)
Exclusive:
Effect Change
General MIDI On
Active Sensing
— 7 —
Download from Www.Somanuals.com. All Manuals Search And Download.
BLOCK DIAGRAM
LED driver
IC371
BA612
LED driver
Q104 ~ Q111
7-seg. LED
LEDs
MIDI
IN
OUT
La ~ Lg, Lp
P41
P40
KO1 ~ KO3
LS0 ~
LS7
KO Signal
Generator IC102
TC74HC174AF
KO0 ~
KO5
Buttons
CPU
LSI106
HD6433298A42F
Keyboard
KI1 ~ KI5
Power Switch
POWER
FI0 ~ FI7
SI0 ~ SI7
Reset IC
KC0 ~
KC7
IC5
RESET
RH5VL36AA
A0 ~
A14
D0~D7
Working Storage RAM
(64K-bit)
LSI105
SRM2264LM90-B
Key Controller
LSI107
HG52E35P
A0 ~ A14
A0 ~ A2
A0 ~ A3
RA0 ~ RA19
Effect RAM
(256K-bit)
LSI103
Sound Source ROM
DSP
LSI102
HG51B115FD
EA0 ~ EA14
(16M-bit)
LSI101
TC5316200CF-C112
LC33832M-70
ED0 ~ ED7
RD0 ~ RD15
WCK1
SLOP
BCK
D/A Converter
LSI104
UPD6376GS
DVDD
LVDD
AVDD
VC
VCC
VDD
Filter
IC101
Filter
IC101
Output
Main
Volume
Power Supply Circuit
IC401, Q401 ~ Q405
Speakers
Power Amplifier
IC402
LA4598
— 8 —
Download from Www.Somanuals.com. All Manuals Search And Download.
CIRCUIT DESCRIPTION
KEY MATRIX
KC0
KC1
C#2 (1)
C#2 (2)
A2 (1)
A2 (2)
F3 (1)
F3 (2)
C#4 (1)
C#4 (2)
A4 (1)
A4 (2)
F5 (1)
F5 (2)
C#6 (1)
C#6 (2)
A6 (1)
A6 (2)
KC2
KC3
D#2 (1)
D#2 (2)
B2 (1)
B2 (2)
G3 (1)
G3 (2)
D#4 (1)
D#4 (2)
B4 (1)
B4 (2)
G5 (1)
G5 (2)
D#6 (1)
D#6 (2)
B6 (1)
B6 (2)
KC4
E2 (1)
E2 (2)
C3 (1)
C3 (2)
G#3 (1)
G#3 (2)
E4 (1)
E4 (2)
C5 (1)
C5 (2)
G#5 (1)
G#5 (2)
E6 (1)
E6 (2)
C7 (1)
C7 (2)
KC5
F2 (1)
F2 (2)
C#3 (1)
C#3 (2)
A3 (1)
A3 (2)
F4 (1)
F4 (2)
C#5 (1)
C#5 (2)
A5 (1)
A5 (2)
F6 (1)
F6 (2)
KC6
KC7
G2 (1)
G2 (2)
D#3 (1)
D#3 (2)
B3 (1)
B3 (2)
G4 (1)
G4 (2)
D#5 (1)
D#5 (2)
B5 (1)
B5 (2)
G6 (1)
G6 (2)
FI0
SI0
FI1
SI1
FI2
SI2
FI3
SI3
FI4
SI4
FI5
SI5
FI6
SI6
FI7
SI7
C2 (1)
C2 (2)
G#2 (1)
G#2 (2)
E3 (1)
D2 (1)
D2 (2)
A#2 (1)
A#2 (2)
F#3 (1)
F#3 (2)
D4 (1)
D4 (2)
A#4 (1)
A#4 (2)
F#5 (1)
F#5 (2)
D6 (1)
D6 (2)
A#6 (1)
A#6 (2)
F#2 (1)
F#2 (2)
D3 (1)
D3 (2)
A#3 (1)
A#3 (2)
F#4 (1)
F#4 (2)
D5 (1)
E3 (2)
C4 (1)
C4 (2)
G#4 (1)
G#4 (2)
E5 (1)
D5 (2)
A#5 (1)
A#5 (2)
F#6 (1)
F#6 (2)
E5 (2)
C6 (1)
C6 (2)
G#6 (1)
G#6 (2)
Note: Each key has two contacts, the first conatct (1) and second contact (2).
Key
FI
First contact (1)
Second contact (2)
KC
SI
NOMENCLATURE OF KEYS
C#2
G#2 A#2
C#3 D#3
F#3 G#3
F#4 G#4
C#5
F#5 G#5
D#6
F#6 G#6
A#6
D#2
F#2
A#3
C#4 D#4
A#4
D#5
A#5
C#6
E3
E2
G2
D6 E6 F6 G6 A6 B6
C7
C2 D2
F2
A2 B2 C3 D3
F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6
— 9 —
Download from Www.Somanuals.com. All Manuals Search And Download.
BUTTON MATRIX
KI1
KI2
KI3
KI4
KI5
KO0
3
0
2
1
KO1
KO2
KO3
KO4
Control
Demo
Effect
MIDI
+
6
9
-
7
5
8
4
MIDI
Channel
Channel
On/Off
Octave
Shift
Tone
Modulation
POWER SUPPLY CIRCUIT
The power supply circuit generates six voltages as shown in the following table. VDD voltage is always
generated. The others are controlled by APO signal output from the CPU.
Name
VDD
Voltage
+5 V
For operation of
CPU, Reset IC, Working storage RAM
DVDD
AVDD
LVDD
VCC
+5 V
DSP, Key touch LSI, Sound source ROM, Effect RAM, KO siginal generator
+5V
DAC, Filter
+4.5 V
+9 V
LED Driver
Power amplifier, Pilot lamp
Power amplifier
VC
+9 V
RESET CIRCUIT
When batteries are set or an AC adapter is connected, the reset IC provides a low pulse to the CPU.
The CPU then initializes its internal circuit and clears the working storage RAM.
When the power switch is pressed, the CPU receives a low pulse of POWER signal. The CPU provides
APO signal to the power supply circuit and raises RESET signal to +5V to reset the DSP, the key control-
ler and the KO signal generator.
VDD
DVDD
DVDD
Battery set
VDD
KO Signal Generator
IC102
DSP
LSI102
RESET
TC74HC174AF
HG51B155FD
CPU
LSI106
HD6433298A42F
Reset IC
IC105
RH5VL36AA
-RESET
VDD
DVDD
POWER
From power switch
APO
To power supply circuit
-NMI
P42
Key Controller
LSI107
HG52E35P
Working Strage RAM
LSI105
SRM2264LM90
— 10 —
Download from Www.Somanuals.com. All Manuals Search And Download.
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 MIDIl
interfaces. The CPU accesses to the working storage RAM, the DSP and the key touch LSI. The CPU
interprets MIDI message using the working storage RAM. The CPU also controls buttons and LEDs.
The following table shows the pin functions of LSI106.
Pin No.
Terminal
P50/TXD
P51/RXD
P52/SCK
-RESET
-NMI
In/Out
Out
In
Function
1
2
3
4
5
6
7
8
MIDI signal output
MIDI signal input
Reset signal output
Reset signal input
Out
In
In
Power ON trigger signal input
+5V source
VCC
In
-STBY
In
Standby signal input. Connected to +5V.
Ground (0V) source
VSS
In
9, 10 XTAL, EXTAL
In
20MHz clock input
11, 12
13
MD1, MD0
AVSS
P70
In
Mode selection input
Ground (0V) source
In
14
In
Analog input terminal for the pitch bend wheel
APO cancellation signal input
Not used. Connected to +5 V source.
LED drive signal output
+5V source
15
P71
In
16
P72
17 ~ 21
22
P73 ~ P77
AVCC
P60 ~ P67
VCC
Out
In
23 ~ 30
31
Out
In
LED drive signal output
+5V source
32
P27
Not used
33 ~ 48
40
A0 ~ A14
VSS
Out
In
Address bus
Ground (0V) source
49 ~ 56
57
D0 ~ D7
P40
In/Out
Out
Out
Out
Out
In
Data bus
Clock for KO signal generator
KO signal data
58
P41
59
P42
APO signal output
60
P43
Read enable signal output
Write enable signal output
Not used
61
P44
62
P45
63
P46
Out
10 MHz clock output
Not used. Connected to +5 V source.
64
P47
DIGITAL SIGNAL PROCESSOR (LSI102: HG51B155FD)
Upon receipt of note numbers and their velocities, the DSP reads sound and velocity data from the sound
source ROM in accordance with the selected tone; the DSP can read rhythm data simultaneously when a
rythm pattern is selected. Then it provides 16-bit serial signal containing data of the melody, chord, bass,
and percussion to the DAC. When an effect selected, the DSP adds the effect to the sound data using a
256k-bit RAM.
The following table shows the pin functions of LSI102.
— 11 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Pin No.
1 ~ 8
9, 10
11
Terminal
CD0 ~ CD7
CE1, TRSB
GND7
In/Out
Function
In/Out
Data bus
Not used
In
Out
In
Ground (0V) source
12
CK16
Terminal for 24.576 MHz clock check point
+5V source
13
VCC1
14
CK0
In
Clock input. Connected to terminal CK16.
Not used
15
TCKB
16
VCC1
In
In
+5V source
17
GND1
Ground (0V) source
18, 19
20
XT0, XT1
SGL
In/Out
In
24.576 MHz clock input/output
System control terminal. Single chip system: Open
Chip select signal input
Address bus
21
CCSB
In
22 ~ 25
26
CA0 ~ CA3
CE0
In
In
Not used. Connected to ground.
Write enable signal
27
CWRB
CRDB
In
28
In
Read enable signal
29 ~ 32
33
Not used
RESB
TESB
In
In
Reset signal input
34
Not used. Connected to +5V.
Not used
35 ~ 39
40 ~ 49
52 ~ 57
RD0 ~ RD15
In
Data bus for the sound source ROM
50
51
VCC2
GND2
In
+5V source
In
Ground (0V) source
58
RA23
Out
Out
Out
Not used
59
RA22
Chip select signal for the sound source ROM
Not used
60, 61
RA20, RA21
62 ~ 73
75 ~ 82
RA0 ~ RA19
Out
Address bus for the sound source ROM
74
83
GND5
WOK2
VCC3
GND3
WOK1
SOLM
SOLP
BOK
In
Ground (0V) source
Not used
Out
In
84
+5V source
85
In
Ground (0V) source
Word clock for the DAC
Not used
86
Out
Out
Out
Out
87
88
Serial sound data output
Bit clock output
Not used
89
90 ~ 92
93
VCC5
EA0 ~ EA12
EWEB
In
+5V source
94, 95
97 ~ 105
107,109
110, 112
Out
Out
Address bus for the effect RAM
96
Write enable signal for the effect RAM
— 12 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Pin No.
106
Terminal
EOEB
In/Out
Out
In
Function
Read enable signal output for the effect RAM
+5V source
108
VCC7
111
ECEB
Out
Chip select signal output for the effect RAM
Not used
113 ~ 117 ED11 ~ ED15
118
119
VCC4
GND4
In
In
+5V source
Ground (0V) source
120 ~ 122 ED8 ~ ED10
N
o
t
used
123 ~ 130
131
ED0 ~ ED7
GND5
In/Out
In
Data bus for the effect RAM
Ground (0V) source
132 ~ 134
135, 136
Not used. Connected to ground.
Not used
Block diagram of DSP and DAC circuit
Sound Source ROM
LSI101
TC5316200CF-C112
SOLP: Sound data
BOK: Bit clock
CE
A0 ~ A19
D0 ~ D15
WOK1: Word clock
RD0 ~
RD15
RA0 ~
RA19
RA22
DAC
LSI104
D0 ~ D7
A0 ~ A3
SOLP
BOK
ROUT
SI
DSP
CLK
LSI102
LOUT
WOK1
A12
A14
RD
CCSB
CRDB
LRCK
UPD6376GS
HG51B155FD
APO
WR
CWRB
RESB
RESET
PG
EWEB
ECEB EOEB
X101
24.576 MHz
EA0 ~
EA14
ED0 ~
ED15
WE
OE
CS
D0 ~ D15
A0 ~ A14
Effect RAM (256K-bit)
LSI103
LC33832M-70
— 13 —
Download from Www.Somanuals.com. All Manuals Search And Download.
DAC (LSI104: UPD6376GS)
The DAC receives 16-bit serial data output from the DSP. The data contains digital sound data of the
melody, chord, bass, and percussion for the right and left channels. The DAC converts the data into
analog waveforms by each channel and output them separately.
The following table shows the pin functions of LSI1.
Pin No. Terminal In/Out
Function
Mode selection terminal. Connected to ground.
Ground (0V) source for the internal digital circuit
Not used.
1
2
SEL
D.GND
NC
In
In
3
4
DVDD
A.GND
R.OUT
A.VDD
R.REF
L.REF
L.OUT
A.GND
LRCK
LRSEL
SI
In
In
+5V source for the internal digital circuit
Ground (0V) source for the right channel
Right channel sound waveform output
+5V source for the internal analog circuit
Right channel reference voltage terminal
Left channel reference voltage terminal
Left channel sound waveform output
Ground (0V) source for the left channel
Word clock input
5
6
Out
In
7, 8
9
In
10
11
12
13
14
15
16
In
Out
In
In
In
Not used. Connected to ground.
Sound data input
In
CLK
In
Bit clock input
KEY CONTROLLER (LSI107: HG52E35P)
The key controller generates key scan signals and provides them to the keyboard. By counting the time
between first-key input signal FI and second-key SI from the keyboard, the key controller detects key
velocity. The note number and its velocity data are read at regular intervals by the CPU.
Key Controller
LSI107
HG52E35P
RD
Keyboard
KC
APO
CRDB
CWRB
CKI
WR
KC0
KC7
Key scan signal
Key input signal
CLOCK
A13
CCSB
A14
First contact
FI
RESB
CD0
RESET
FI0
SI0
SI7
Data bus
CD7
SI
FI7
Second contact
CA0 ~ CA2
Address bus
— 14 —
Download from Www.Somanuals.com. All Manuals Search And Download.
The following table shows the pin functions of LSI107.
Pin No.
Terminal
In/Out
Function
1
REQB
Out
Not used
FI8 ~ FI10,
SI8 ~ SI10
2, 3, 60 ~ 63
In
Not used. Connected to + 5V.
4
VCC
CRDB
CWRB
CCBB
In
In
+5V source
5
Read enable signal input
Write enable signal input
Chip select signal input
Not used. Connected to +5V.
Reset signal input
6
In
7
In
8, 9, 11
T, STBY, W
RESB
In
10
In
12
CKI
In
10 MHz clock input
Not used. Connected to ground.
Not used.
13, 14
TMD, TST
CKO
In
15
Out
In
16
GND
Ground (0V) source
Not used. Connected to ground.
Not used.
17
XIN
In
18
XOUT
Out
In
19
TRES
Not used. Connected to ground.
Data bus
20 ~ 23, 25 ~ 28
CD0 ~ CD7
GND
In/Out
In
24
29 ~ 31
32
Ground (0V) source
Address bus
CR0 ~ CR2
VCC
In
In
+5V source
33 ~ 39, 41 ~ 43
53 ~ 55, 57 ~ 59
FI0 ~ FI7,
SI0 ~ SI7
In
Key input signal input
40
44 ~ 47, 49 ~ 52
48, 56
VCC
KC0 ~ KC7
GND
In
Out
In
+5V source
Key scan signal
Ground (0V) source
+5V source
64
VCC
In
FILTER BLOCK
Since the sound signals from the DAC are stepped waveforms, the filter block is added to smooth the
waveforms.
AVDD
AVDD
C333(H)
Q107/108
2SC1740
50V1µ
From the DAC
-
10V22µ
1K
1K
1K
+
To main volume
IC105
M5218APR
AG
AG
AG
AG
— 15 —
Download from Www.Somanuals.com. All Manuals Search And Download.
POWER AMPLIFIER (IC402: LA4598)
The power amplifier is a two-channel amplifier with standby switch.
The following table shows the pin function of IC402.
Pin No.
Terminal
Power GND
Ch1 B.S.
Ch1 OUT
VCC
In/Out
Function
1
2
In
Ground (0V) source
Terminal for a bootstrap capacitor
Channel 1 output
3
Out
In
4
+9V source
5
Ch1 N.F.
Ch1 IN
In
Negative feedback input
Channel 1 input
6
In
7
D.C.
Terminal for a decoupling capacitor
Ground (0V) source
8
Pre GND
Stand by
Ch2 IN
In
In
9
Power control signal input. 0 V: Off, +9 V: On
Channel 2 input
10
11
12
13
14
In
Ch2 N.F.
Ch2 OUT
Ch2 B.S.
NC
In
Negative feedback input
Channel 2 output
Out
Terminal for a bootstrap capacitor
Not used
LED DRIVING
LVDD
La ~ Lg, Lp
LS0 ~ LS7
CPU
Q104 ~Q111
LED Driver
LSI106
IC371
BA612
HD6433298A42F
IC102
TC74HC174AF
LED Driver
P40
P41
KP0 ~KP5
(KO0 ~ KO5)
KO Signal Generator
LG
— 16 —
Download from Www.Somanuals.com. All Manuals Search And Download.
MAJOR WAVEFORMS
A . 1 s
A . 1 s
A
1 ms
A
1 µs
CH1
3
CH1
B
1
2
CH1
CH2
E
F
CH1
CH2
CH2
C
4
5
CH2
D
CH3
~
~
CH1: 5 V CH2: 5 V
CH1: 5 V CH2: 5 V CH3: 5 V
CH1: 20 mV CH2: 20 mV
CH1: 5 V CH2: 5 V
1 Voltage VDD
3 Power ON signal PSW
B Word clock WOK1
E Filter output AOR
CG connector pin 6
HD6433298A42F pin 5
UPD6376GS pin 13
CG connector pin 3
2 Initial reset signal
4 APO signal
C Data S1 (Note OFF)
F Filter output AOL
RH5VL36A pin 1
HD6433298A42F pin 59
UPD6376GS pin 15
CG connector pin 4
5 Reset signal
D Bit clock BOK
Tone : Whistle (No. 078)
Key : A4
HD6433298A42F pin 3
UPD6376GS pin 16
Touch response : OFF
A . 1 ms
A 20 µs
A 10 ms
6
CH1
Note OFF
9
CH1
CH2
CH3
7
8
G
CH1
CH2
CH3
0
A
Note ON
CH1: 5 V CH2: 5 V CH3: 5 V
CH1: 5 V CH2: 5 V
CH3: 5 V
CH1: 5 V
6 Key scan signal KC0
9 Button scan signal KO0
G MIDI signal output
HG52E35P pin 44
CE connector pin 1
CG connector pin 16
7 Key scan signal KC1
0 Button scan signal KO1
HG52E35P pin 45
CE connector pin 2
8 Key scan signal KC2
A Button scan signal KO2
HG52E35P pin 46
CE connector pin 4
— 17 —
Download from Www.Somanuals.com. All Manuals Search And Download.
SCHEMATIC DIAGRAMS
AMP./VOLUME PCBs JCM715-MA2M/MA3M
— 18 —
Download from Www.Somanuals.com. All Manuals Search And Download.
MAIN PCB JCM715-MA1M
17
2
16
3
13
14
5
15
12
4
1
6
7
8
9
10
11
— 19 —
Download from Www.Somanuals.com. All Manuals Search And Download.
CONSOLE PCBs JCM715-CN1M/2M/3M
— 20 —
Download from Www.Somanuals.com. All Manuals Search And Download.
KEYBOARD PCBs M616T-KY1M/KY2M
— 21 —
Download from Www.Somanuals.com. All Manuals Search And Download.
EXPLODED VIEW
14
11
13
15
7
1
12
9
8
10
17
16
3
11
6
19
18
20
2
20-1
22
21
20-2
5
24
4
23
Download from Www.Somanuals.com. All Manuals Search And Download.
PARTS LIST
GZ-500
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.
Download from Www.Somanuals.com. All Manuals Search And Download.
FOB Japan
N.R.Yen
Unit Price
N
Item
Code No.
Main PCB
Parts Name
Specification
Q
R
6923 6180 PCB ass'y M715-MA1M
2012 1498 LSI
2012 1316 LSI
2012 0777 LSI
2114 4221 LSI
2012 0770 LSI
2012 0462 LSI
2011 5194 LSI
2114 4214 IC
2105 4452 IC
2105 3122 IC
2105 4445 IC
2105 4536 IC
M140244*1
7,810
980
1,160
410
200
280
860
600
39
A
A
A
A
A
A
A
A
B
B
B
B
B
B
B
C
C
B
B
N
N
N
N
N
N
N
1
1
LSI101
LSI102
LSI103
LSI104
LSI105
LSI106
LSI107
IC101
IC102
IC103
IC104
IC105
TC5316200CF-C117
HG51B155FD-1
LC33832M-70-TLM
UPD6376GS-E1
SRM2264LM90-B
HD6433298A42F
HG52E35P
M5218AFP-600C
HD74HC174FPTR
HD74HC00FP-TR
HD74HC08FPTR
RH5VL36AA-T1
2SC4081-T106S
2SA1576AT106S
RB411DT146
1
1
1
1
1
1
1
1
1
1
1
1
2
9
1
1
1
1
N
N
N
N
N
N
51
35
34
44
8
8
24
9
Q101, Q102 2252 1169 Chip transistor
N Q103 ~ Q111 2250 1169 Chip transistor
N
N
N
N
D101
D102
X101
X102
2390 1729 Chip diode
2390 1820 Chip diode
2590 2107 Crystal oscillator
2590 2100 Ceramic oscillator
Amp./Volume PCBs
1SS355TE-17
HC-49S24A
CSACS20.00MX040-TC
130
70
N
2
6923 6190 PCB ass'y M715-MA2,3M
2105 2114 IC, Regulator
2114 2891 IC
M140245*1
S-81350HG
LA4598
PC900V
2SC1740SQ-TP-T
2SD1858R.S-TV6-T
2SB1240R.S-TV6-T
2SB1274-CCC
2SA933-SQ-TP-T
RD5.1ESB2-T1-T
RD5.1JSB3-T1-T
1SS133T-77-T
1
1
1
1
2
1
1
1
1
1
1
4
2,350
65
140
210
13
B
A
A
B
A
A
A
A
B
A
A
C
IC401
IC402
IC403
2114 1421 IC, Photocoupler
Q401, Q404 2220 1387 Transistor
Q402
Q403
Q405
Q406
D401
2253 0581 Transistor
2251 0665 Transistor
2251 0651 Transistor
2200 4409 Transistor
2360 0098 Zener diode
2360 2261 Zener diode
2390 1344 Diode
24
26
47
14
14
9
3
D402
D403,
D407~D409
D404
2310 7996 Zener diode
2390 2408 Diode
2390 0371 Diode
3501 7049 Power jack
3612 0665 Phone jack
3612 0789 Jack
3501 4816 DIN jack
2765 1575 Slide volume
Console PCBs
RD4.7ESB2-T1-T
1FWJ43N(TPA3)
DSK10B-BT-T
HEC2305-01-330
YKB21-5006
YKB21-5010
YKF51-5051
EWA-MJ0S10B23
1
1
1
1
1
1
1
1
12
27
11
29
60
60
110
110
B
C
C
A
B
B
B
B
N
D405
D406
J101
J102
J103
J104
VR101
N
3
6923 6200 PCB ass'y M715-CN123M
2114 3318 IC
2390 1344 Diode
M240232*1
BA612
1SS133T-77-T
MVR3378S-B102
LN882RPX-(TT)
SL-9352-60
1
1
21
2
1
1
1,170
98
B
B
C
C
C
B
C
IC371
D372~D391
3
18
27
200
17
N LED371/372 2370 1197 LED
LED373
LED374
LED375
2370 0959 LED
2370 1141 LED
2370 0987 LED
LN28RPX-(TT14)
1
Keyboard PCBs
N
N
4
5
6923 6240 PCB ass'y M616T-KY1M
2301 0101 Diode
6923 6250 PCB ass'y M616T-KY2M
Notes: N – New parts
M – Minimum order/supply quantity
M111750*3
1S2473-T-77-T
M111751*3
1
64
1
870
8
830
B
C
B
R – Rank
— 23 —
Download from Www.Somanuals.com. All Manuals Search And Download.
FOB Japan
N.R.Yen
Unit Price
8
N
Item
Code No.
Parts Name
Specification
1S2473-T-77-T
Q
R
2301 0101 Diode
58
C
Bender
VR102
6
2765 1141 Rotary volume
6923 6450 Bender knob
RK1631110-50KB
M340169-2
1
1
190
60
B
C
N
Mechanical Parts
N
N
N
N
N
N
N
N
97
67
28
B
B
B
B
B
C
B
C
A
A
A
A
A
C
C
C
B
B
C
B
7
8
9
6906 7781 Rubber button, Light gray
6923 6420 Rubber button, White
6923 6410 Rubber button, Gray
6923 6400 Rubber button, Pink
3831 0357 Speaker
6923 6390 Top panel
6923 6430 Slide knob
6923 6381 Display plate
6922 2840 White key set, CEGB
6922 2850 White key set, DFA
6922 2860 White key set, DFAS
6922 2740 Black key set,10-key
6922 2750 Black key set, 5-key
6906 7805 Case
6902 6140 Battery spring
6903 2150 Battery spring
6922 2761 Key contact rubber LT-CB
6922 2771 Key contact rubber LT-CS
6922 2631 Bottom plate
M312088A-3
M312125-3
M312123-3
M312122-3
1221AF
M140150-1
M311860-2
M340172A-1
M111723-1
M111724-1
M111725-1
M111726-1
M111726-2
M111732E*3
M41226-1
1
2
1
1
2
1
1
1
5
4
1
2
1
1
1
1
4
1
1
1
10
11
12
13
14
15
16
17
18
19
20
20-1
20-2
21
22
23
24
28
1,000
1,340
13
170
100
100
100
120
86
N
N
1,340
27
M41330-1
18
89
91
360
180
M211704A-1
M211705A-1
M211706A-1
M311164F*9
6906 7876 Battery cover
Accessory
6920 8691 Music stand
M311760A-1
1
130
B
Notes: N – New parts
M – Minimum order/supply quantity
R – Rank
— 24 —
Download from Www.Somanuals.com. All Manuals Search And Download.
MA0800751A
Download from Www.Somanuals.com. All Manuals Search And Download.
|