★
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ございます。
A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
PDX-30/PDX-50
22
MAIN
CB3
CB1
CB2
JK1
IC2
IC6
IC10
IC8
IC7
CB4
IC9
IC11
IC3
IC5
IC1
CB6
CB5
0
0
2.7
1.9
0
0
15.3
15.4
3.7
3.7
0
0
15.3
15.4
3.7
3.7
3.7
3.7
15.4
2.5
0
2.5
2.5
2.5
2.5
2.5
5.0
2.5
2.5
2.5
2.5
2.5
0
0
2.5
0
00
5.0
2.5
2.5
2.5
5.0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0
0
0
0
2.5
2.5
2.5
0
2.8
0
15.4
15.4
15.4
2.8
2.8
2.8
2.8
2.8
15.4
3.4
0
1.1
0
3.4
0
8.4
1.3
15.4
5.3
15.4
3.3
3.3
0
0
0
3.3
0.8
3.3
3.3
3.4
3.4
1.9
3.4
2.7
3.4
2.4
3.3
1.7
1.6
0
0
0
0
0
3.4
3.3
3.3
0
3.4
0
3.3
3.2
0
0
1.9
1.8
0
3.3
0
0
0
0
0
0
0
1.8
3.3
8.4
0
0
0
0
0
0
0
0
3.4
3.4
3.4
2.7
3.0
3.4
3.4
3.4
3.4
3.4
3.4
2.7
0
0
0
0
3.4
3.4
3.5
3.7
3.5
3.7
15.4
3.4
1.7
1.7
0
1.7
0
0
0
0
0
0
0
0
0
3.3
3.3
3.3
0.6
2.6
0
3.4
0
0.5
A
OUT L
IN L
1
B
2
OSC
PWM COMP
DRIVER
STBY
STBY
OUT
INV
GND
VCC
TSD
OCP
Error AMP
SS
CTL
LOGIC
IC6
: BD9870FPS-E2
High stand voltage 1 channel step-down switching regulator
VREF
1
5
FIN
4
2
IC7
: LC75348M
Single-chip electronic volume and tone control system
TEST
V
SS
CE
DI
CL
V
DD
Vref
RVref
LVref
CCB
INTERFACE
ZERO CROSSDET
MULTIPLEXER
MULTIPLEXER
LOGIC CIRCUIT
CONTROL
CIRCUIT
ZERO CROSSDET
NO SIGNAL
TIMER
TIM
LOUT
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
ROUT
LBASS2
LBASS1
LTRE
LIN
LSELO
L4
L3
L2
L1
R1
NC
NC
R2
R3
R4
RSELO
RIN
RTRE
RBASS1
RBASS2
IC10
: R5F21246SNFP
Single chip 16 bit microprocessor
R0H
Timers
Port P0
8
8
8
6
3
3
8
Port P1
Port P2
Port P3
Port P4
Port P6
A/D converter
(10 bits x 12 channels)
System clock
generation circuit
XIN-XOUT
High-speed on-chip oscillator
Low-speed on-chip oscillator
XCIN-XCOUT
UART or
clock synchronous serial I/O
(8 bits x 2 channels)
I
2C bus interface or clock synchronous
serial I/O with chip select
(8 bits x 1 channel)
LIN module
(1 channel)
Watchdog timer
(15 bits)
Timer RA (8 bits)
Timer RB (8 bits)
Timer RD
(16 bits x 2 channels)
Timer RE (8 bits)
R8C/Tiny Series 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
Vref
Vout
CT
GND
VDD
SUB
2
1
5
4
3
–
+
IC9
: BD5230FVE-TR
Voltage detector IC with adjustable output delay
V
OUT
GND
V
IN
NOISE
BYPASS
CONT
IC2
: NJM2370U05
Voltage regulator
Bandgap
Reference
Thermal
Protection
IC8
: YDA147-SZE2
Digital audio power amplifier
Power
Limit
INRP
VREF
AVDD
PVDDREG
CKIN
MUTEN
SLEEPN
GAIN1
GAIN0
PLIMIT
NCDRC1
NCDRC0
GAIN0
PLIMIT
AVDD
PVDD
GAIN1
GAIN0
GAIN1
PLIMIT
INRM
Rch
Lch
PVDDMR
PVSSR
PVDDPR
MUTE
SLEEPN
MUTEN
Feed Back
Feed Back
Feed Back
Feed Back
OUTPR
OUTMR
PWM
Amp
Oscillator
UVLO
Non-Clip
DRC
Control
3.3V
Regulator
VREF/
REF
Level
Shift
Logic
Gain
Control
Power
Limit
INLP
INLM
PVDDML
PVSSL
PVDDPL
OUTPL
OUTML
PWM
Amp
Level
Shift
Logic
Gain
Control
MUTE
OTP
MUTE
Control
OCP
PROTN
CKOUT
1
NC
NC
NC
NC
NC
NC
SLEEPN
PROTN
MUTEN
CKOUT
CKIN
NCDRC0
GAIN0
GAIN1
NCDRC1
PVDDML
PVDDML
PVDDPL
PVDDPL
OUTML
OUTML
OUTML
OUTPL
OUTPL
OUTPL
PVSSL
PVSSL
PVDDPR
PVDDPR
OUTPR
OUTPR
OUTPR
PVSSR
PVSSR
OUTMR
OUTMR
OUTMR
PVDDMR
PVDDMR
PVDDREG
AVDD
INLP
INLM
INRM
INRP
VREF
AVSS
PLIMIT
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
48
47
46
45
44
43
42
41
40
39
38
37
13
14
15
16
17
18
19
20
21
22
23
24
No replacement part available.
サービス部品供給なし
MICRO-
PROCESSOR
AUDIO
PROCESSOR
DIGITAL
AMPLIFIER
REGULATOR
REGULATOR
DC IN
15 V
To wireless module
Group select
switch
PDX-50
No replacement part available.
サービス部品供給なし
(Writing port)
STATUS
indicators
DRIVER R
DRIVER L
YE
BU
RE
WH
–
+
–
+
POINT
A XL1 (Pin 9 of IC10)
1
5 pin
1 pin 2
POWER cable ON
POWER cable OFF
1
5 pin
1 pin 2
POWER cable OFF
POINT
B 1 / Pin 5, 2 / Pin 1 of IC9
