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 3/3)
60
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.
52
Display
controller
Segment
digit
select/
output
circuit
Serial
receive
circuit
Digit
output
circuit
Clock
generator
DIG11/
SEG42
51
DIG12/
SEG41
50
DIG13/
SEG40
49
DIG14/
SEG39
48
DIG15/
SEG38
47
DIG16/
SEG37
46
DIG17/
SEG36
45
SEG35
XOUT
6
Vcc1
8
Vcc2
18
Vss
5
Vp
64
XIN
7
CS
SCK
3
SDATA
4
RESET
1
SEG00
44
9
SEG34
SEG26
17
19
SEG25
Segment
output
circuit
Display code
RAM
(8-bit x 60)
CGROM
(35 bit x 166)
CGROM
(35 bit x 16)
code
select
Code
write
Code/
command
control
circuit
DIG00
63
53
DIG10
IC701: M66003-0101FP
FL Display Driver
2
data
timing
clock
dot data
write
scan pulse
IC750: µPC4570HA
Dual OP-Amp
Vcc Vo
1
-Vm
1
+Vm
1
V
EE
+Vm
2
-Vm
2
Vo
2
Vcc
1 2
3
4
5
6
7
8
9
+
+
-
-
1
2
Page 59
to AUDIO (1)
C10
Page 56
to SACD
J10
Page 59
to MAIN (1)
A6
1
4
3
2
8
5
6
7
3.3
3.3
0
0
3.3
0
0
3.3
3.3
5.6
3.6
3.3
3.3
3.3
3.3
3.3
3.3
-24.3
~
~
~
-24.6
~
~
~
~
~
~
-22.4
-22.5
-22.5
~
~
~
~
-22.5
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
-22.3
-24.3
-24.3
-22.3
-18.7
-18.7
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
-22.5
-22.5
-22.4
-0.8
-22.5
~
~
-24.3
~
-24.3
-24.3
~
~
~
~
~
~
~
~
~
~
~
~
~
-24.3
~
~
~
-0.7
10.9
10.9
-10.4
-10.6
-11.2
9.7
0
0
0
0
0
~
~
-18.7
-18.7
-18.7
-18.7
-18.7
-18.7
1.6
1.6
0
3.0
5.0
5.0
0.1
0.7
3.6
0
0
0
0
0
3.3
3.3
3.3
3.3
3.3