Toshiba 20AS25 Service Manual - Page 18

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Toshiba 20AS25 Service Manual
CH. DOWN
VOL. DOWN
CH. UP
VOL. UP
POWER
OS101
1
D106
Q105
SW
J703
2
J702
2
Q505
P. FAIL
IC501
T502
LTV-817M-VB
4
FEED BACK
16
8
Q502
13
6
Q501
POWER AMP
Q503
PROTECT DRV.
E-1
TU001
10
66
RGB Proc.2
73
OSD SW
CONTRAST BRIGHTNESS
67
68
I/O
69
IIC
RGB Proc.1
70
TIM
RGB MATRIX
INT
74
COLOR CONT
PWM
78
AD
76
OSD
ROM
RAM
56
Q507
5
FEED BACK
SDA SCL
SW
DEGAUSS COIL
BUFFER
L503
D501~D504
RECTIFIER
2
1
F501
AC IN

BLOCK DIAGRAM

11 12
13
17
20
21
ATT
Chroma
Proc.
ACC/C-BPF
APC/KILLER
MCU
TINT/DEMO
CLK
Ver.Proc.
Hor.Proc.
Ver SYNC SEP
SYNC SEPA/Hor. VCO
Ver.COUNT DOWN
Hor.COUNT DOWN
V RAMP
AFC-1/H COINCIDENT
AFC-2 H PHASE
27
26
38
58
57
37
MICON/CHROM IC
IC101 OEC7091C
V-OUT IC
IC401 LA78040N-E
6
MEMORY IC
PUMP UP
IC199
BR24L02F-WE2
-
AMP
+
VCC
7
1
3
L501
4
3
IC1001 AN7511
2
6
34
SOUND AMP
IC
4
8
50
RGB OUTPUT Stage
DRIVE
51
CUT OFF
52
HV BLK
Q607
H-CTL
46
45
Q402
H. DRIVE
Q401
VCXO
H. OUTPUT
16
X601
3.579545MHz
6
5
FB401
1
2
10
HV
3
SPEAKER
SP1001
Q801
RED OUT
Q802
GREEN OUT
Q803
BLUE OUT
3
9
7
B
G
R
V801
Heater
4
F
8
DY
9
F
S
E-2