A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
I
J
K
L
M
N
DVD-S2300MK2
SCHEMATIC DIAGRAM (MAIN 1/3)
50
★
All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
★
Components having special characteristics are marked
s
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
Page 49
to AUDIO (1)
A3
Page 48
to SACD
I10
Page 60
Page 59
to DVD MODULE
G3
to DVD MODULE
I3
6dB
75ohm
6dB
75ohm
20k
6M
LPF
6dB
75ohm
IC502: BH7862FS
6 ch Video Driver
1
CTRAP
2
MUTE1
3
CIN
4
GND
5
YIN
6
VCC
7
GND
8
PYIN
9
GND
10
PYTRAP
11
VCC
12
PbIN
13
GND
14
PrIN
15
MUTE2
MUTE1
20k
MUTE2
16
PrTRAP
32
COUT
31
TEST
TEST
30
MIXOUT
29
MIXFB
28
GND
27
YTRAP
26
GND
25
YOUT
24
YFB
23
GND
22
PYOUT
21
PYFB
20
GND
19
PbOUT
18
N.C.
17
PrOUT
1.5-6M
BPF
6M
LPF
20k
6M
LPF
12M
LPF
CLAMP
CLAMP
6dB
75ohm
6dB
75ohm
6dB
75ohm
IC504: TS7ST00F
2 Input NAND Gate
1
2
3
IN B
IN A
GND
4
5 VCC
OUT Y
IC505: TC7WU04F
Triple Inverter
1A
3Y
GND
VCC
1Y
1
2
3
4
5
2A
3A
2Y
6
7
8
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
PARALLEL
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
MAIN (1)
VIDEO LPF AMP
SHIFT REGISTER
TTL NAND
INVERTER
PULSE
TRANSFORMER
OPTICAL
TRANSMITTER
INVERTER
DRIVER
TTL AND
INVERTER
0
0
0
3.1
3.1
5
2
1
3
4
0
3.3
3.3
2.5
2.5
1
7
5.0
0
2.5
2.5
2.6
5.0
0
8
4
3
5
5.0
0
0
2.5
5
3
2
0
6
4
1.7
2
0
1
5.0
0
0
5.0
0
0
5.0
0
0
2.4
0
1.8
1.8
0
1.9
0
1.9
1.7
0
2.0
2.3
0
2.3
2.4
5.0
2.8
0
2.5
5.0
1.9
2.5
0
0
2.8
2.8
0
5.0
2.2
5.0
w
w
w
.
x
i a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299