Yamaha DVD-S2300, Service Manual

Page: 59 / 106

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
DVD-S2300
SCHEMATIC DIAGRAM (MAIN 2/3)
59
H All v oltage are measured with a 10MΩ /V DC electric volt meter.
H Components ha ving special characteristics are marked s and must be replaced
with par ts having specifications equal to those originally installed.
H Schematic diag ram is subject to change without notice.
VREF
VDD
VSS
OUT
2
4
1
IC601 : S-808XXANNP
Reset Signal Generator
IC603 : M51951BHP
System Reset
+
–
–
1
VCC
2 OUTPUT
3
GND
R
R
1.25V
IC605, 606: PQ05RD21
IC608: PQ09RD11
Regulator
IC607: MD1422N
Voltage Regulator
1 Vin 2 Vo
4 Vc
3
GND
INPUT
OUTPUT
COMMON
IC611: NJM79L05UA
Voltage Regulator
1
3
2
13
12
14
G
ACK
SER D G D G
R
D G D G
R
D G D G
R
D G D G
R
D G D G
R
D G D G
R
D G D G
R
D G D G
R
11
10
SCK
SECR
9
7
6
5
4
3
2
1
15 QA
QB
QC
QD
QE
QF
QG
QH
QM SERIAL DATA
OUTPUT
PARAREL
DATA OUTPUTS
IC612 : 74VHC595SJX
8-Bit Shift Register
IC613: TC7S32F
2 Input OR Gate
1
2
3
IN B
IN A
VSS 4
5 VDD
OUT X
MUTE
I NA
GND
I NB
GND
N.C.
I NC
GND
VCC
OUT A1
OUT A2
OUT B1
OUT B2
N.C.
OUT C1
OUT C2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
6dB 75Ω
6dB 75Ω
6dB 75Ω
IC901 : BA7660FS
3 Channel 75Ω Diver
IC902: TC74HC4053AF
Analog Multiplexer/Demultiplexer
16
VDD
6
INHIBIT
11
15
14
9
A
C
B
8 VSS
7 VEE
12
0X
13 1X
2 0Y
1
1Y
5 0Z
3
1Z
LEVEL
CONVERTER
10
BINARY TO 1-OF-8
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
4 Z-COM
X-COM
Y-COM
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
"ON" CHANNNEL (S)
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NONE
C
0
0
0
0
1
1
1
1
X B
0
0
1
1
0
0
1
1
X A
0
1
0
1
0
1
0
1
X
IC904 : MM1508
1 3
SW VCC
4 IN2
6
IN1
2 OUTPUT
5
GND
BIAS
Clamp Clamp
DRV.
6dB
Page 57
to AUDIO (1)
K1
Page 60
to MAIN (3)
G8
Page 56
to SACD
N8
Page 57
to AUDIO (1)
A9
Page 57
to AUDIO (2)
B10
Page 60
to MAIN (2)
A2
Page 57
to AUDIO (1)
B8
MAIN (6)
MAIN (1)
MAIN (4)
HZU13B1TRF
WB17710
HZU13B1TRF
WB17710
2.6 3.1 3.1
3.1
3.1 5.0
5.8
5.8 5.8
4.9
4.9
9.0
7.0
7.0
4.9
0
0
0
0 14.0 14.0
14.0
14.0
14.0
14.0
1.1
2.4
0 0 0 0 0
0
0
0
0
0
0.6
-25.5
-25.5 -27.3
-26.2
-19.9
-11.8 -4.6
2.8
4.9
-25.9
-22.4
-22.4
-11.8
-0.1
-0.1
11.5
11.5 11.5 3.1
3.1
8.9
13.7
13.7
6.7
AC11.7
AC4.2
AC21.9
6.7
0
0
0
-11.8
2.6
2.7
2.8
2.8
2.8
2.8
8.6
8.6
2.6 2.6 2.6 2.6
0 2.6 2.6 2.6
6.4
6.4
3.1
0
0
0
5.0
AC11.3
AC8.0
3.1
3.2
5.0
5.0
5.0
5.0
5.0
0
0
0
0
0
0
0
0
0.8 0.8 0.8 2.4
4.2
1.8
1.6
0
0
0
0
0
0.1
12.3
12.1
12.4
4.7
11.9
11.4
5.0
1.5
5.0
2.3
0.8
0.8
0.9
8.0
0.8
0.6
0.6
0 0
0
0
0
0
0
0 0 0
0
0
4.2
4.2
5.0
0