Schematic Diagrams - Yamaha MCR-330 Service Manual

A B C

SCHEMATIC DIAGRAMS

MAIN 1/3
1
MAIN (1)
W201
Page 53 M2
to MAIN (2)_CB703
IC223
Page 53 M5
W202
2
to MAIN (2)_CB704
IC223
3
4
SELECTOR
4.7
4.7
IC202 4.8
4.8
4.8
4.7
5 4.8
CB202
4.8
4.8
4.8
4.7
Page 56 C5
to DAB_CB902
CD IN
6
7
IC201: LC72725KM-UY-TLM-E
RDS signal demodulation IC
VREF FLOUT CIN
+3V +3V
Vdda
CLOCK Vddd
PLL
RECOVERY
REFERENCE (57kHz)
(1187.5Hz)
VOLTAGE
Vssa Vssd
VREF
57kHz
MPXIN BPF DATA RDDA
ANTIALIASING SMOOTHING
(SCF) DECODER
FILTER FILTER
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
INR3 3 26 TRER
9 Surround
Input
selector
INR2 4 25 BASSR1
IC202: TC74VHC08FT
Quad 2-input AND gate
INR1 5 24 BASSR2
mute
1A 1 14 Vcc INL1 6 23 BASSL2
Mono
1B 2 13 4B /Stereo
1Y 3 12 4A INL2 7 22 BASSL1
2A 4 11 4Y
2B 5 10 3B INL3 TREL
8 21
2Y 6 9 3A
Input
selector
GND 7 8 3Y
INL4 9 20 DGND
INL5 10 19 SDA
MCU
Input gain
I/F
control
IGOUTL 11 18 SCL
10
mute
0~+20dB
/2dB step Volume
VOLINL 12 17 AGND
0~87dB,-∞
13 REF 16
IGOUTR 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
IC207
2.4 2.4 2.4
0
IPOD IN
2.4
2.4
IC207
2.4
0
INPUT
4.8 0
4.8 4.8
0
4.8
0
4.8
0
4.8 EEPROM
4.8
4.8
4.8
0
3.5
3.5
0
4.8
9.5
12.0
9.5
10.2
0
IC206
Writing port
IC204: TC74VHCT08AFT
IC205, 209: NJM4580E
Quad 2-input AND gate Dual operational amplifier
V+
1A 1 14 Vcc 8
1B 2 13 4B
1Y 3 12 4A
2, 6 1, 7 OUTPUT
2A 4 11 4Y –INPUT
+INPUT
3, 5
2B 5 10 3B
2Y 6 9 3A
GND 3Y
7 8
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 4. V- E1 2 7 WC
SCL M24Cxx
E2 3 6 SCL
5. +INPUT2
VSS 4 5 SDA
WC
3 6 6. -INPUT2
7. OUTPUT2
8. V + VSS
4 5
G H
SW OUT
12.0
4.8
4.8 4.8 SUBWOOFER OUT
IC209
4.8 4.8
IC209 0 0
4.8
0
-26.6 -27.0
0 0
3.2
0
3.2
No replacement part available.
OUT L
SPEAKERS
15.3 0
D-AMP
3.4 0
1.7
0
1.7
1.7
3.2
1.7 1.7
IC210
1.7
3.3
0 3.3
0.4 3.2
3.2
2.6
3.2
2.6
IC212
6.0
3.3 4.0 0
4.0
IC222
3.3
0
3.3
3.3
0 0
3.2 3.3
A
0 3.3
0
3.3
0
B
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
MICROPROCESSOR
0 3.2
2.1
3.5
0
3.5
0
3.3
0
IC211: R5F3640DNFA
IC210: YDA146-SZE2
Single-chip 16-bit CMOS microprocessor
Digital audio power amplifier
8
8
Lch
Feed Back PVDDPL
OUTPL Port P0 Port P1 Port P2
INLP
Gain Power PWM Level
Logic PVSSL
Control Limit Amp Shift VCC2 ports
INLM
OUTML
MUTE
Feed Back PVDDML
Internal peripheral functions
PLIMIT
GAIN0
GAIN1
SLEEPN Timer (16-bit)
MUTEN
CKIN CKOUT Outputs (timer A): 5
NCDRC0
SLEEPN Inputs (timer B): 6
NCDRC1
Non-Clip MUTEN
3.3V Oscillator MUTE OTP
PVDDREG DRC OCP
Regulator Control
AVDD Control
UVLO Three-phase motor control circuit
VREF/
VREF PROTN
REF
Watchdog timer
(15-bits)
Feed Back PVDDPR
A/D converter
MUTE
OUTPR (10-bits X 26-channels)
INRP
Gain Power PWM Level Logic
Control Limit Amp Shift PVSSR
INRM D/A converter
OUTMR
(8-bits X 2-channels)
Feed Back PVDDMR
Rch
NC 1 36 NC
NC 2 35 NC Port P10 Port P9
3 34 8 8
PVDDREG GAIN1
AVDD 4 33 GAIN0
INLP 5 32 NCDRC1
6 31
INLM NCDRC0
VREF 7 30 CKIN
INRM 8 29 CKOUT
INRP 9 28 MUTEN
10 27
AVSS PROTN
PLIMIT 11 26 SLEEPN
NC 12 25 NC
I J K
CB207
CB208
IC213
0
0
3.3
0
CB209
2.5
6.0
CB210
-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)
IC212: R1154H001C-T1-F IC213: BD9870FPS-E2
8 8 8 High stand voltage 1 channel step-down switching regulator
8 Voltage regulator
Port P3 Port P4 Port P5 Thermal
Shutdown
1 V
V DD 5 OUT
4 ADJ
UART or clock synchronous Clock generation circuit
serial I/O -X
X IN OUT Vref
(6-channels) X -X
CIN COUT STBY
PLL frequency synthesizer
5
Short Current
Clock synchronous On-chip oscillator (125 kHz)
Protection Limit
serial I/O
Circuit Circuit
(8 bits x 2 channels)
DMAC
CE 3 2 GND
(4 channels)
CRC arithmetic circuit (CCITT)
(Polynomial : X 16 +X 12 +X 5 +1)
Pin No. Symbol Description
1 V OUT Output Pin for Voltage Regulator
M16C/60 series
Memory
2 GND Ground
Microprocessor core
ROM 3 CE Chip Enable Pin (active at "H")
4 ADJ Adjustable Output Pin for Voltage Regulator
SB
R0H R0L 5 V DD Power Supply Pin
USP RAM
R1H R1L
R2 ISP
R3
INTB
A0
PC
A1
A1
FB FLG Multiplier
FB
IC223: TC7WH125FK
Dual bus buffer
VCC1 ports
Port P8 Port P7 Port P6
8 8 8
G1 1 8 Vcc
A1 2 7 G2
Y2 3 6 Y1
GND 4 5 A2
L M N
CRX-330/NS-BP100
Page 55 K8
to POWER (2)_W802
Page 55 K6
to POWER (2)_CB801
Page 54 N6
to POWER (1)_W4
Page 54 N7
to POWER (1)_W5
Page 54 N4
to POWER (1)_W2
Page 54 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 2
DD
1 V OUT
R
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
★ 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.
51