A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
63
FUNCTION 1/3
R-840/NS-BP300
★
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.
SCHEMATIC DIAGRAMS
CB303
CB302
CB301
W301
CB305
0
2.3
2.3
2.3
2.3
2.9
2.9
0
4.5
5.3
5.3
2.7
2.7
0
0
0
9.1
5.4
5.4
0
7.0
-6.8
0.3
0.3
0.2
5.0
0
0
0
9.1
3.3
1.4
5.3
1.4
0.8
5.3
0
0
0
-6.8
-6.8
0
0
0
0
0
0
0
0
0
0
-6.8
7.0
7.0
0
0
0
0
0
0
0
0
0
0
0
0
-6.8
-6.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9.0
-6.9
0
14.2
0
0
6.4
-6.3
0
0
-6.8
0
0
-6.8
0
0
-6.8
0
0
-6.8
-6.9
-6.3
-6.9
7.0
6.4
7.0
0
0
0
0
0
0
0
0
0
0
0
5.1
5.1
-2.0
0
0
0
0
0
0
0
0
0
0
0
0
7.0
-6.9
0
0
0
0
CD IN
iPod IN
SW OUT
OUT L
POINT
A XL301 (Pin 14 of IC301)
A
IC308:
BA15218F
Dual high slew rate, low noise operational amplifier
–
+
+
–
1
2
3
4
8
7
6
5
OUT1
– IN1
+ IN1
V
EE
V
CC
OUT2
– IN2
+ IN2
1ch
2ch
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
IC301:
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
A
+
+
-
-
1
OUTPUT A
INVERTING INPUT A
NON-INVERTING
INPUT A
V-
B
2
3
4
8
V+
OUTPUT B
INVERTING INPUT B
NON-INVERTING
INPUT B
7
6
5
IC306:
LME49723MAX/NOPB
Dual high fidelity audio operational amplifier
IC304, 305, 307, 310
: NJM2068MD-TE2
Dual operational amplifier
OUT
1
OUT
2
–IN
1
+IN
1
+IN
2
-IN
2
–V
CC
+V
CC
1
2
3
4
8
7
6
5
+ –
+ –
V+
–INPUT
+INPUT
V–
OUTPUT
IC309
: NJM4580E
Dual operational amplifier
8
2, 6
3, 5
1, 7
4
InA1
Bias
Control Logic
IC303
: NJW1194V
2-channel electronic volume input selector and tone control
InA2
InA3
InA4
InB1
InB2
InB3
InB4
OutB
OutA
V-
V+ GND
Ach Tone Filter
ADR0
ADR1
DATA
CLOCK
LATCH
Zero Cross Detection
V-
Bch Tone Filter
InA1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
InA2
InA3
InA4
GND
GND
GND
Tone_Ba2a
Tone_Ba2b
Tone_Ba1b
Tone_Tr1b
GND
GND
GND
InB4
InB3
InB2
InB1
V-
V+
ADR0
ADR1
OutB
DCCAP_B
Tone_Ba1a
Tone_Tra
OutA
VDDOUT
LATCH
DATA
DLOCK
DCCAP_A
TONE
TONE
IC302
: NJM2752RB0
2-input/1-output stereo audio selector
Vref
Vref
GND
V
+
OUTB
OUTA
IN1A
IN1B
IN2A
IN2B
CNT1
LOGIC
2
9
4
7
8
6
3
10
1
5
RDS
INPUT SELECTOR
SELECTOR/
VOLUME/
TONE CONTROL/
BUFFER
OUTPUT
AUDIO IN
PLAYER
LME49723MAX/NOPB
LME49723MAX/NOPB
AUX
SUBWOOFER
FUNCTION (1)
(B, G models)
(A, B models)
To FM TUNER
Summary of Contents for NS-BP300
Page 5: ...5 R 840 NS BP300 R 840 NS BP300 B G models ...
Page 6: ...6 R 840 NS BP300 R 840 NS BP300 NS BP300 C T K A B G L V models ...
Page 7: ...7 R 840 NS BP300 R 840 NS BP300 REAR PANELS C model T model R 840 ...
Page 8: ...8 R 840 NS BP300 R 840 NS BP300 K model A model ...
Page 9: ...9 R 840 NS BP300 R 840 NS BP300 G model B model ...
Page 10: ...10 R 840 NS BP300 R 840 NS BP300 L model V model ...
Page 11: ...11 R 840 NS BP300 R 840 NS BP300 NS BP300 C T K A B G L V models C K A B G L V models T model ...
Page 48: ...48 R 840 NS BP300 R 840 NS BP300 MEMO ...
Page 83: ...83 R 840 NS BP300 R 840 NS BP300 MEMO ...
Page 84: ...R 840 NS BP300 ...
