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 3/3)
52
★
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.
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:
µ
PC4570HA
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 51
to MAIN (1)
D10
Page 48
to SACD
J10
Page 53
to RS-232C
E10
Page 51
to MAIN (1)
A6
1
4
3
2
8
5
6
7
FL DRIVER
FL DISPLAY
IR REMOTE
HEADPHONE AMP
PHONES
LEVEL
PRGR LED DRIVER
VOFF LED DRIVER
DVD LED DRIVER
SACD LED DRIVER
STANDBY
LED DRIVER
PANEL KEY
MAIN (2)
MAIN (3)
3.3
3.3
0
0
3.3
0
0
3.3
3.3
5.6
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
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
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