A
B
CP901
CP902
CN905
1
2
3
4
5
6
7
8
VR501-1
100K(B)
VR501-2
100K(B)
(VOLUME)
D
E
A
B
C
IC801
M37470M2536S
MICRO COMPUTER
R801
10K
R803
10K
D802
MA165T
A
D801
MA165T
A
CK1
DA
T
A
1
ST1
AC
RELA
Y
SP-A
SP-B
GND
+B(2)
BACKUP
1 2 3 4 5 6 7 8
D806
MA165TA
D807
ISS291TA
D821
ISS291TA
D803
MA165TA
D804
MA165TA
A
B
F
C
D
E
A
A
C
E
B
D
Q803
UN4211TA
RESET
1
3
2
X801
(4MHz)
R828
1K
CP906
1
2
3
4
5
6
7
A
B
C
D809
(PHONO)
Q804
D810
(TUNER)
Q805
D81
1
(CD)
Q806
D812
(AUX)
Q807
D813
(T
APE2)
Q808
Q809
R827
330
R826
180
D809-813
LN018304P
A
F
B
C
D
E
Q804-809
UN4111TA
LED DRIVE
R805
10K
C801
0.01
C805
50V0.47
C804
6.3V1000
C803
0.01
R807
100K
C806
50V2.2
D808
MA165T
A
R810
10K
R809
10K
R811
820
R812
1K
R813
1.2K
R814
1.5K
R815
1.8K
S801
(PHONO)
S802
(TUNER)
S803
(CD)
S804
(AUX)
S805
(T
APE2)
S806
(T
APE1
MONITOR)
OPERATION CIRCUIT
VOLUME CIRCUIT
1 2 3 4 5 6 7 8
SCHEMATIC DIAGRAM-1
R806
10K
C
B
E
D
R829
10K
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P17
/
SRDY
P1
1
P07
P06
P05
P04
P03
P02
P01
P00
P41
P40
P16
/
CLK
P15
/
SOUT
P14
/
S
IN
P13
/
T
1
P12
/
T
0
P23
/
CNTR1
P32
/
CNTR0
P31
/
INT1
P30
/
INT0
RESET
V
CC
P10
P23
/
IN3
P22
/
IN2
P21
/
IN1
P20
/
IN0
VREF
XI
N
X
OUT
V
SS
E
D
R830
4.7K
Note: The number which noted at the connectors on the schematic diagram as "SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2"
indicates the schematic diagram serial number located on the left corner in the schematic diagram.
D814
LN014304P
(T
APE1
MONITOR)
L801
100
H
5.4V
5.4V
5.4V
5.1V
0V
5.3V
5.3V
5.3V
5.3V
5.3V
5.4V
5.4V
5.4V
2.5V
2.4V
0V
0V
0V
0V
0V
0V
0V
1.4V
5.2V
5.3V
5.2V
5.3V
5.2V
0V
5.3V
0V
5.4V
0V
5.3V
5.4V
0V
5.3V
5.4V
0V
5.3V
5.4V
0V
5.3V
5.4V
0V
5.3V
5.4V
:POSITIVE VOLTAGE LINE
:PHONO SIGNAL LINE
6.2V
5.4V
0V
2.2V
P-P
F=4MHz
3.6V
P-P
F=4MHz
Summary of Contents for SU-V300M2
Page 7: ...7 2 Checking for the main P C B Follow the Step 1 Step 5 of item 7 1 7...
Page 8: ...Check the main P C B as shown below 8...
Page 9: ...7 3 Replacement for the power IC Follow the Step 1 Step 3 of item 7 1 9...
Page 20: ...R459 60 ERDS2FJ680 1 4W 68 2 20...
Page 23: ...23...
Page 24: ...17 Packaging 24...
Page 25: ...F010400000YM KH 25...
