A
B
C
D
F
G
H
I
J
1
2
3
4
7
CDR-HD1500
49
■
SCHEMATIC DIAGRAM (OSD)
★
All voltage are measured with a 10M
Ω
/V DC electric 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.
2SA1037
2SC2412K
2SD1938F
1SS355
MA732
MA8051-M
LC74781-9844
PIN CONNECTION DIAGRAM OF TRANSISTORS,
DIODES AND ICS.
SP232ECP
IC900: SP232ECP
RS232 Driver/Receiver
9
R2O
Charge
Pump
R2
8
R2I
12
R1O
R1
13
R1I
9
T2I
8
T2O
12
T1I
15
GND
13
T1O
T1
T2
1
8
16
IC950: LC74781-9844
On Screen Display Controller
CS
9
RST
23
VSS1
1
SIN
11
SCLK
10
OSCIN
6
OSCOUT
7
SYNIN
17
SEPC
18
SEPOUT
19
CHARA
8
VDD2
12
SEPIN
20
CTRL3
22
21
CTRL2
XtalIN XtalOUT
BLANK
CVIN
CVOUT
CTRL1
4
2
3
5
15
13
VDD1
24
Serial
parallel
converter
8-bits
latch
+
command
decoder
Horizontal
character
size
register
Horizontal
size
counter
Horizontal
display
position
register
Horizontal
dot
counter
Vertical
display
position
register
Vertical
dot
counter
Blinking
and inversion
control
register
Blinking
and inversion
control
circuit
Blinking
and inversion
control
register
Blinking
and inversion
control
register
Character
control
counter
Line
control
counter
Timing generator
Synchronization
signal generator
Character output control
Background control
Video output control
Display
control
register
RAM
write
address
counter
Display
RAM
Vertical
character
size
register
Vertical
size
counter
Decoder
Font
RAM
Shift
register
Decoder
Horizontal
character
size
register
Horizontal
character
size
register
Horizontal
character
size
register
Horizontal
character
size
register
1
12
24
B
E
C
Anode
Cathode
P
age 48
to OPERA
TION (6)
U, J models only
A6
ON SCREEN DISPLAY CONTROLLER
RS-232C DRIVER/RECEIVER
x :NOT USED
O :USED / APPLICABLE
OSD (2)
OSD (1)
5.1
5.0
5.1 5.0
0 -8.1
0 5.0
8.8
24
-2.4 4.8 -4.2 -8.1 -8.1
0
0
-8.1
0
0
4.7
-0.6
0
4.7
0.4
1.0
4.7
0.4
1.0
1.0
4.9
4.9
0
5.1
5.1
0.1
2.4
2.3
0
0
2.4
2.3
0
3.8
3.2
3.8
1.0
1.0
1.7
1.7
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