Ic Block Diagrams - Tatung VM9G5DA S995T Service Manual

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