Yamaha MCR-330, Service Manual

Page: 51 / 70

★
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.
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
51
MAIN 1/3
CRX-330/NS-BP100
SCHEMATIC DIAGRAMS
IC211
IC208
IC206
IC203
CB202
W202
IC223
IC223
W201
IC202
IC205
IC205
IC207
IC207
CB203
CB204
CB206
CB205
CB210
CB209
CB208
CB207
IC212
IC210
IC209
IC209
IC222
IC213
CD IN
IPOD IN
OUT L
SW OUT
4.8
5.5
12.0
4.8
2.4 3.0
3.2
0.7
0.7
3.2
0
0
0
0
0.7
0
0
0.7
0
0
-27.4
4.8
12.0
4.8
4.8
4.8
4.8
2.4
2.4
0
4.8
4.8
4.8
4.8
4.8
4.8
12.0
0
4.8
-26.6
0
0
3.2
0 15.3
15.3
15.3
15.3
2.6
2.6
0
0
15.3 15.3
2.7 2.7 2.7 2.7 2.7
15.3
2.7 0
0
1.7
1.7
1.7
1.7
1.7
0.4
3.4
0
0
0
3.2
3.2
3.3
3.3
1.7
3.2
0
2.6
2.6
2.5
12.9
4.9
4.9
0
0
0
0
0
3.3
12.2
12.9
1.0
12.2
6.0
3.2
3.2
4.0 3.3
6.0
0
4.0
-27.0
0
0
4.8
4.8
2.4
2.4
2.4
2.4
2.4
2.4
0
0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.7
4.7
4.7
4.7
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
9.5
12.0
10.2
9.5
0
0
0
3.5
3.5
0
0
0
0
0
3.3
0
3.3
0 0
1.6 1.8
1.6 1.8
3.2
2.9
0
2.9
-27.4
-23.0
-23.3
-21.9
-22.6
-22.6
-22.6
0
-23.3
-22.6
3.2
3.3
3.3
3.3
3.3
3.2
3.2
2.1
2.7
1.8
1.6
3.3
0
0
0
3.2
3.2
1.6
3.5
3.5
3.4
3.3 3.3 3.3
3.3
3.3 3.3 3.3 3.3
1.5
0 0
0
0 0
3.5 3.2
3.3
3.3
3.2
0
0
0
0
3.3
3.3
3.3
3.4
0.3 3.3 1.8 3.4 3.3 3.3 3.3 3.2
2.8
3.5 0.4
1.7
3.2
1.7
3.2
3.3
3.3
3.3
0
0
0
3.3
3.2
3.3
3.3
0
3.3
0
0
0
0
A
1
B
2
POINT A XL202 (Pin 15 of IC211)
POINT B 1 / Pin16,
1
IC211 (16 pin)
2
IC211 (12 pin)
2 / Pin12 of IC211)
1
IC211 (16 pin)
2
IC211 (12 pin)
POWER cable ON POWER cable ON POWER cable OFF
OSC
PWM COMP DRIVER
STBY
STBY
OUT
INV
GND
VCC
TSD OCP
Error AMP
SS
CTL
LOGIC
IC213 : BD9870FPS-E2
High stand voltage 1 channel step-down switching regulator
VREF
1
5
FIN
4
2
REFERENCE
VOLTAGE
CIN FLOUT VREF
VREF
ANTIALIASING
FILTER
57kHz
BPF
(SCF)
SMOOTHING
FILTER
MPXIN
+3V
Vdda
Vssa
PLL
(57kHz)
CLOCK
RECOVERY
(1187.5Hz)
+3V
Vddd
RDS-ID/
READY
RST
Vssd
DATA
DECODER
XOUT XIN
TEST TEST
CLK(4.332MHz)
OSC
RAM
(128bits)
RDDA
RDCL
RDS-ID
DETECT
MODE
IC201 : LC72725KM-UY-TLM-E
RDS signal demodulation IC
CIN TEST
Vssd
MODE
Vddd
XIN
XOUT
RST
RDCL
FLOUT
RDS-ID/READY
RDDA
VREF
MPXIN
Vdda
Vssa
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16 1
IC208 : M24C02-RDW6TP
2 K-bit and 1 K-bit serial I 2 C bus EEPROM
3
E0-E2 SDA
VCC
M24Cxx
WC
SCL
VSS
SDA VSS
SCL
WC
VCC 1
2
3
4
8
7
6
5
E2
E1
E0
IC212 : R1154H001C-T1-F
Voltage regulator
Pin No.
1
2
3
4
5
Symbol
VOUT
GND
CE
ADJ
VDD
Description
Output Pin for Voltage Regulator
Ground
Chip Enable Pin (active at "H")
Adjustable Output Pin for Voltage Regulator
Power Supply Pin
V
DD
CE
5 1
3 2
V
OUT
4 ADJ
GND
Vref
Short
Protection
Circuit
Current
Limit
Circuit
Thermal
Shutdown
IC203 : R2A15908SP
5 input selector 2 ch electronic volume with tone & surround
1
2
3
4
5
6
7
8
9
mute
0~+20dB
/2dB step
0~+20dB
/2dB step
0~87dB,-∞
0~87dB,-∞
mute
Input
selector
Mode selector
Surround
Input
selector
MCU
I/F
Input gain
control
Mono
/Stereo
T
one contr
ol
Rch Bass/T
reb
le
10
11
12
13
14
INR5
INR4
INR3
INR2
INR1
INL1
INL2
INL3
INL4
INL5
IGOUTL
IGOUTR
VOLINL
VOLINR
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ROUT
LOUT
TRER
BASSR1
BASSR2
BASSL2
BASSL1
TREL
DGND
SDA
SCL
REFIN
AGND
VCC
Volume
Volume
T
one contr
ol
Lch Bass/T
reb
le
REF
IC211 : R5F3640DNFA
Single-chip 16-bit CMOS microprocessor
Timer (16-bit)
Internal peripheral functions
Inputs (timer B): 6
Three-phase motor control circuit
Outputs (timer A): 5
Watchdog timer
(15-bits)
VCC1 ports
VCC2 ports
A/D converter
(10-bits X 26-channels)
Clock generation circuit
PLL frequency synthesizer
On-chip oscillator (125 kHz)
X IN -X OUT
X CIN -X COUT
M16C/60 series
Microprocessor core
Port P0
8
Port P1
8
Port P2
8
Port P3
8
Port P4
8
Port P5
8
Port P10
8
Port P9
8
Port P8
8
Port P7
8
Port P6
8
R0L R0H
R1H
R1L
R2
R3 ISP
USP
INTB
SB
CRC arithmetic circuit (CCITT)
DMAC
(4 channels)
(Polynomial : X 16+X12+X5+1)
Multiplier
Memory
ROM
RAM
FB
A1
FB
A1
A0
FLG
PC
UART or clock synchronous
serial I/O
Clock synchronous
serial I/O
(6-channels)
(8 bits x 2 channels)
D/A converter
(8-bits X 2-channels)
IC210 : YDA146-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
V+
–INPUT
+INPUT
V–
OUTPUT
IC205, 209 : NJM4580E
Dual operational amplifier
8
2, 6
3, 5
1, 7
4
IC202 : TC74VHC08FT
Quad 2-input AND gate
Vcc 14
4B 13
4A 12
4Y 11
3B 10
3A 9
3Y 8
1A 1
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
IC204 : 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
Pin No.
1
2
3
4
5
Symbol
C D
GND
NC
V DD
OUT
Description
Pin for external capacitor for setting output delay
No Connection
Ground Pin
Input and power source for device itself
Output Pin ("L" at Detect, "H" at Released)
VDD
RD
Vref
2
1
3
VOUT
GND
CD
5
IC222 : R3112N251A-TR
Voltage regulator
1
2
3
5 4
7
6
8
1. OUTPUT1
2. -INPUT1
3. +INPUT1
4. V-
5. +INPUT2
6. -INPUT2
7. OUTPUT2
8. V+
IC207 : NJM2737M
Operational amplifier
IC223 : TC7WH125FK
Dual bus buffer
1 G1
2 A1
3 Y2
4 GND
8 Vcc
7 G2
6 Y1
5 A2
No replacement part available.
MICROPROCESSOR
EEPROM
INPUT
SELECTOR
D-AMP
SPEAKERS
SUBWOOFER OUT
MAIN (1)
to POWER (2)_W802
Page 55 K8
to MAIN (2)_CB703
Page 53 M2
to MAIN (2)_CB704
Page 53 M5
to DAB_CB902
Page 56 C5
to POWER (2)_CB801
Page 55 K6
to POWER (1)_W4
Page 54 N6
to POWER (1)_W5
Page 54 N7
to POWER (1)_W2
Page 54 N4
to POWER (1)_W3
Page 54 N4
Writing port