10. IC BLOCK DIAGRAM
OUTPUT 3
OUTPUT 2
VCC
OUTPUT 4
VCC
14
1
13
12
11
10
9
8
2
3
4
5
6
7
+
-
+
-
40
OUTPUT
IC403/IC404
V-SYNC I/P
H-SYNC I/P
R/D
G/D
B/D
R/B
G/B
H-SYNC O/P
V-SYNC O/P
B/B
CONTRAST
BRIGHT
SIZE/V
ROTATION
VOLUME
SCL
SDA
CS5
CS4
CS3
CS2
CS1
CS0
MUTE
SHUTTLE KEYB
SHUTTLE KEYA
FUNC
SIZE COMP
MODEL
LED
ISDA
ISCL
OSC I/P
OSC O/P
GND
VCC
RESET_
DEG
SUSPEND
OFF
UM6861
LM324
IC101
INPUT 3
INPUT 3
NON-INVERTING
NON-INVERTING
INVERTING
INVERTING
INPUT 4
INPUT 4
INPUT 2
INPUT 2
NON-INVERTING
NON-INVERTING
INVERTING
INVERTING
INPUT 1
INPUT 1
-
+
-
+
25
24
23
22
21
20
19
18
17
16
26
27
28
29
30
15
14
13
12
11
31
32
33
34
35
36
10
9
8
7
6
5
37
38
39
4
3
2
1
74LS14
IC105
8
9
10
11
12
13
14
VCC
GND
7
6
5
4
3
2
1
IC801 TDA4866
FEEDB
PROTECTION
OUTB
OUTA
Vfb
GND
Vp
GUARD
INB
INA
6
9
4
2
1
8
3
5
7
AMPLIFIER B
AMPLIFIER A
INPUT STAGE
GENERATOR
FLYBACK
CIRCUIT
GUARD
IC901 3842
VCC
GND
O/P
Ct/Rt
Is
COMP.
F.B
Vref
8
2
1
3
4
6
5
7
U.V.L.O.
36V
1V
1/2 Vref
OSCILLATOR
LATCH
PWM
S
R
COMP
C.S.
1/3
AMP
ERR
LOGLC
RESET
SET/
Vref
5V
BIAS
INTERNAL
