Yamaha NP-S2000, Service Manual

Page: 66 / 87

★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
Components having special characteristics are marked
⚠
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
● ⚠印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
● 本回路図は標準回路図です。改良のため予告なく変更することがあります。
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
NP-S2000
66
DAC 2/4
IC202
CB204
CB211
CB214
IC211
IC213
IC212
IC212
IC212
IC212 IC210
IC210
IC210
IC210
IC203
IC208
IC204
IC205
IC207
CB208
CB212
CB213
IC206
IC214
IC214
IC215
IC209
CB202
IC201
0
5.0
5.8
0
2.1
0
2.6
0
0 5.0
5.0 5.0
5.0
0 0 0 0
0
0 0
0
0
0
0
0
0
0
0 0
0
0
0
0
0
0
0
0
0
5.0
5.0
5.0
5.0
4.9
4.9
1.4
0
0
0
0
0
0
0
0
0
0
0
1.4
1.1
5.0
5.0 5.0
2.1
1.1
0
0
0
0
5.0
5.0
5.0
5.0
2.6
0.3 0
0
1.4
1.1
0
0
0
0
0
0
5.0
5.0
5.0
5.0
2.6
2.1
2.2
4.9
4.9
0.3
3.2
3.2
5.0
2.7
5.0
5.0
2.2
5.0 0
5.0
5.8
5.0 0
8.3
5.0
5.0
5.0
0
5.0
5.0
0
0
5.0
0
5.0
0
0
0
0
0
0
2.7 5.0
3.2
0.3
0
0 3.2
0 5.0
5.0
5.0
0
5.0
5.0
0
4.6
4.6
5.8
8.4
5.0
5.0 5.0 5.0
0
0
0 0 0
0 0
5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
5.0 5.0
0
5.0
0
5.0 5.0 5.0
5.0 5.0 5.0 5.0
0 0
0 0 0
8.4
4.6 5.0 4.6 5.0
5.0 5.0
1.1
0.6
0
0
0.8
5.0 5.0 5.0 5.0
5.0 5.0 5.0
5.0
0
5.0
D
1
E
2
POINT D XL201 (Pin 9 of IC208)
1 IC208
(12 pin, +5M)
IC208
(8 pin, CPU_N_RST)
2
1 IC208
(12 pin, +5M)
IC208
(8 pin, CPU_N_RST)
2
AC POWER ON
(Connect the power cable)
AC POWER ON
(Connect the power cable)
AC POWER OFF
(Disconnect the power cable)
POINT E 1 / IC208 (12 pin, +5M), 2 / IC208 (8 pin, CPU_N_RST)
IC208 : R5F21356ANFP
Single chip 16 bit microprocessor
R0H
Timers
Port P0
8 8 8 8 5 1 8
Port P1 Port P2 Port P3
2
Port P5 Port P4 Port P6
System clock
generation circuit
XIN-XOUT
High-speed on-chip oscillator
Low-speed on-chip oscillator
XCIN-XCOUT
Low-speed on-chip oscillator
for watchdog timer
Voltage detection circuit
Comparator A
DTC
UART or
clock synchronous serial I/O
(8 bits x 3)
I
2
C bus or SSU
(8 bits x 1)
LIN module
Comparator B
Watchdog timer
(14 bits)
Timer RA (8 bits x 1)
Timer RB (8 bits x 1)
Timer RC (16 bits x 1)
Timer RD (16 bits x 2)
Timer RE (8 bits x 1)
R8C microprocessor core Memory
I/O ports
Peripheral functions
R0L
R1H R1L
R2
SB
INTB
PC
USP
ISP
FLG
ROM
(1)
RAM
(2)
Multiplier
NOTES:
1. ROM size varies with MCU type.
2. RAM size varies with MCU type.
R3
A0
A1
FB
A/D converter
(10 bits x 12 channels)
D/A converter
(8 bits x 2)
IC201 : R1154H058B-T1-F
Voltage regulator
Pin No.
1
2
3
4
5
Symbol
V
OUT
GND
CE
NC†
V
DD
Description
Output Pin for Voltage Regulator
Ground
Chip Enable Pin (active at "H")
No Connection
Power Supply Pin
V
DD
CE
3
1
5
2
V
OUT
4 NC
GND
Vref
Short
Protection
Circuit
Current
Limit
Circuit
Thermal
Protection
V
DD
CE
Vref
4 3
1 2
Current Limit
V
OUT
GND
Pin No.
1
2
3
4
Symbol
V
OUT
GND
CE
V
DD
Description
Output Pin
Ground Pin
Chip Enable ("H" Active)
Input Pin
IC202, 203 : RP130Q501D-TR-F
Voltage regulator
IC213 : TC7SET08FU
2 input AND gate
1
2
3
IN A
IN B
GND 4
5
OUT Y
VCC
A
L
L
H
H
B
H
L
H
L
Y
H
L
L
L
IC204, 205 : TC7SZ125FU
Bus buffer 3-state output
5
4
Vcc
OUT Y
1
3
2
GND
IN A
G
IC210, 212 : TC74VHCT08AFT
Quad 2-input AND gate
Vcc 14
4B
4A
4Y
3B
3A
3Y
1A 1
2
3
13
12
11
10
9
8
4
5
6
7
1B
1Y
2A
2B
2Y
GND
IC206, 207, 211 : TC7SZ126FU
Bus buffer 3-state output
1
2
3
5
4
G
IN A
GND
VCC
OUT Y
SUB-
MICROPROCESSOR
DAC (2)
to NET (2)_CB581
Page 64 C2
to DAC (1)_CB406
Page 68 I8
to DAC (1)_CB407
Page 68 L8
to POWER (3)_CB605
Page 69 E7
to DAC (3)_CB701
Page 67 B6
(Writing port) Writing port