Schematic Diagrams - Yamaha CRX-330 Service Manual

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SCHEMATIC DIAGRAMS

MAIN 1/3
1
MAIN (1)
W201
Page 59 M2
to MAIN (2)_CB703
Page 59 M5
W202
2
to MAIN (2)_CB704
3 IC201
IPOD IN
12.0 9.6
12.0 3.4 10.3
12.0
4.0
3.0
2.4
10.3
12.0
0
4
CB201
SELECTOR
To FM Tuner
4.7
4.7
4.8
4.8
4.8
4.7
4.8
5
4.8
4.8
4.8
4.7
CD IN
6
5.2
5.2
0
0
0
0
7
IC202
IC201: LC72725KM-UY-TLM-E
RDS signal demodulation IC
+3V VREF FLOUT CIN +3V
Vdda Vddd
CLOCK
PLL
RECOVERY
REFERENCE (57kHz)
(1187.5Hz)
VOLTAGE
Vssa Vssd
VREF
57kHz
BPF
MPXIN ANTIALIASING SMOOTHING DATA RDDA
(SCF)
FILTER FILTER DECODER
RDCL
RAM
MODE
(128bits)
RST
8 CLK(4.332MHz)
RDS-ID RDS-ID/
TEST TEST
OSC DETECT READY
XIN XOUT
RDS-ID/READY 1 16
RDCL
RDDA 2 15 RST
VREF 3 14 XOUT IC203: R2A15908SP
MPXIN 4 13 XIN
5 input selector 2 ch electronic volume with tone & surround
Vdda 5 12 Vddd
Vssa 6 11 Vssd
FLOUT 7 10 MODE
CIN 8 9 TEST
INR5 1 28 ROUT
Mode selector
INR4 2 27 LOUT
3 26
INR3 TRER
Surround
9 Input
selector
INR2 4 25 BASSR1
IC202: TC74VHC08FT
Quad 2-input AND gate
5 24
INR1 BASSR2
mute
INL1 6 23 BASSL2
1A 1 14 Vcc
Mono
1B 2 13 4B /Stereo
INL2 BASSL1
1Y 3 12 4A 7 22
2A 4 11 4Y
INL3 TREL
2B 5 10 3B 8 21
2Y 6 9 3A Input
selector
GND 7 8 3Y INL4 DGND
9 20
INL5 10 19 SDA
Input gain MCU
control I/F
IGOUTL 11 18 SCL
10
mute
0~+20dB
Volume
VOLINL /2dB step AGND
12 17
0~87dB,-∞
REF
IGOUTR 13 16 REFIN
0~+20dB
/2dB step
Volume
VOLINR 14 15 VCC
0~87dB,-∞
D E F
12.0
4.8
4.8
IC205
0
4.8
0.7 0
0
0.7
0
0
0
0.7
0
4.8 0.7
12.0 4.8 0
4.8 IC205 4.8
5.5
4.8 0
3.2
3.0 2.4
4.8 3.2
-27.4
2.4
4.8
2.4
2.4 2.4 IC207 2.4
0
2.4
2.4
IC207
2.4
0
INPUT
4.8
0
4.8 4.8
0
4.8
4.8 0
4.8 0
EEPROM
4.8
4.8
4.8
0
3.5
3.5
0
4.8
9.5
12.0
9.5
10.2
0
IC204
4.8
0.4
0.4
0.6
3.3
3.3
4.4
2.8
2.8
4.1
0
0
0
0
3.5
0
0
3.5
0
Writing port
IC204: TC74VHCT08AFT IC205, 209: NJM4580E
Quad 2-input AND gate
Dual operational amplifier
V+
8
1A 1 14 Vcc
1B 2 13 4B
1Y 3 12 4A
2, 6 1, 7 OUTPUT
–INPUT
2A 4 11 4Y
+INPUT
3, 5
2B 5 10 3B
2Y 6 9 3A
GND 7 8 3Y
V–
4
IC207: NJM2737M IC208: M24C02-RDW6TP
Operational amplifier 2 K-bit and 1 K-bit serial I 2 C bus EEPROM
VCC
1. OUTPUT1
1 8
2. -INPUT1 3
3. +INPUT1 E0-E2 SDA E0 1 8 VCC
2 7 E1 2 7 WC
4. V- M24Cxx
SCL 3 6 SCL
E2
5. +INPUT2
WC VSS 4 5 SDA
3 6 6. -INPUT2
7. OUTPUT2
8. V
4 5 + VSS
G H
SW OUT
12.0
4.8
4.8 4.8
SUBWOOFER OUT
4.8 IC209
4.8
IC209 0 0
4.8
0
-26.6 -27.0
0 0
3.2
0
3.2
No replacement part available.
サービス部品供給なし
OUT L
SPEAKERS
15.3 0
D-AMP
3.4 0
1.7
0
1.7
1.7
3.2
1.7 1.7
1.7 IC210 3.3
0 3.3
0.4 3.2
3.2
2.6
3.2
2.6
IC212
6.0
4.0
3.3 0
4.0
IC222
3.3
0
3.3
3.3
0 0
3.2 3.3
A
0 3.3
0
3.3
B 0
3.4
1 2
3.3
3.3
3.2 3.2
2.7
1.6
3.3 1.8
3.3 1.6
0 0
IC211 3.3
3.3
3.2
0 MICROPROCESSOR 3.2
2.1
3.5
0
3.5
0
3.3
3.3
0
IC211: R5F3640DNFA
IC210: YDA146-SZE2
Single-chip 16-bit CMOS microprocessor
Digital audio power amplifier
8 8
Lch
Feed Back PVDDPL
Port P0 Port P1 Port P2
OUTPL
INLP
Gain Power PWM Level
Logic PVSSL
Control Limit Amp Shift
INLM VCC2 ports
OUTML
Feed Back MUTE
PVDDML
PLIMIT Internal peripheral functions
GAIN0
GAIN1
SLEEPN
Timer (16-bit)
MUTEN
Outputs (timer A): 5
CKIN CKOUT
NCDRC0
NCDRC1 SLEEPN Inputs (timer B): 6
Non-Clip
Oscillator MUTEN OTP
PVDDREG 3.3V DRC MUTE
OCP
AVDD Regulator Control Control
Three-phase motor control circuit
UVLO
VREF/ PROTN
VREF
REF
Watchdog timer
(15-bits)
Feed Back PVDDPR A/D converter
MUTE
OUTPR (10-bits X 26-channels)
INRP
Gain Power PWM Level
Logic PVSSR
Control Limit Amp Shift D/A converter
INRM
OUTMR
(8-bits X 2-channels)
Rch Feed Back PVDDMR
NC 1 36
NC
Port P10 Port P9
NC 2 35 NC
PVDDREG 3 34 GAIN1 8 8
AVDD 4 33
GAIN0
5 32
INLP NCDRC1
INLM 6 31 NCDRC0
VREF 7 30 CKIN
INRM 8 29
CKOUT
INRP 9 28 MUTEN
AVSS 10 27 PROTN
PLIMIT 11 26
SLEEPN
12 25
NC NC
I J K
CB207
CB208
IC213
0
0
3.3
0
CB209
2.5
CB210
6.0
-23.3
-22.6
-22.6
-22.6
-27.4
-21.9
-23.3
-23.0
-22.6
2.9 2.9
0
0
CB205
CB206
3.3
0
3.2
3.2
1.8 1.6
1.8 1.6
0 0
IC211 (16 pin)
IC211 (12 pin)
8 8 8 8
Port P3 Port P4 Port P5
IC212: R1154H001C-T1-F IC213: BD9870FPS-E2
High stand voltage 1 channel step-down switching regulator
Voltage regulator
UART or clock synchronous Clock generation circuit
serial I/O
X IN -X OUT
(6-channels)
X CIN -X COUT Thermal
Shutdown
PLL frequency synthesizer
1 V
Clock synchronous V DD 5 OUT
On-chip oscillator (125 kHz)
serial I/O
(8 bits x 2 channels) DMAC
(4 channels) 4 ADJ
Vref
CRC arithmetic circuit (CCITT)
16 12 5 STBY
(Polynomial : X +X +X +1)
5
Short Current
M16C/60 series Memory Protection Limit
Microprocessor core Circuit Circuit
ROM
CE 3 2 GND
SB
R0H R0L
R1H R1L USP RAM
R2
ISP
R3
Pin No. Symbol Description
INTB
1 V OUT Output Pin for Voltage Regulator
A0 PC
A1
A1 2 GND Ground
FB FLG Multiplier
FB
3 CE Chip Enable Pin (active at "H")
4 ADJ Adjustable Output Pin for Voltage Regulator
5 V DD Power Supply Pin
VCC1 ports
Port P8 Port P7 Port P6
8 8 8
★ 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.
L M N
CRX-330/NS-BP110/NS-BP100
Page 61 K8
to POWER (2)_W802
Page 61 K6
to POWER (2)_CB801
Page 60 N6
to POWER (1)_W4
Page 60 N7
to POWER (1)_W5
Page 60 N4
to POWER (1)_W2
Page 60 N4
to POWER (1)_W3
POINT A XL202 (Pin 15 of IC211)
POINT B 1 / Pin16, 2 / Pin12 of IC211)
1 1
IC211 (16 pin)
2 2
IC211 (12 pin)
POWER cable ON POWER cable OFF POWER cable ON
IC222: R3112N251A-TR
Voltage regulator
VCC
1
V
DD 2
1 V
R OUT
D
VREF
PWM COMP DRIVER
Vref
OSC
3 GND
STBY 5
CTL
C
LOGIC OUT D
2
TSD OCP
Pin No. Symbol Description
1 OUT Output Pin ("L" at Detect, "H" at Released)
INV
Error AMP
2 V Input and power source for device itself
4 DD
3 GND Ground Pin
NC No Connection
4
SS 5 C D Pin for external capacitor for setting output delay
FIN
GND
● 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。
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