Toshiba 42WP37C Service Manual page 73

HT-Board Block Diagram
HT
21 pin SCART Terminal Board
1
R_IN
2
IC3501
3
4
5
L_IN
6
BLUE
7
7
SLOW
8
9
10
GREEN 2
11
JK3102
12
13
21P SCART
14 5
RED/C_IN
15
FB
16
17
18
19
VIDEO_IN
20
21
HT-Board Block Diagram
IC3701
VIDEO PROCESSOR
C
Q3441 71
Analog Adaptive
Front-End Comb
Filter
AGC
NTSC
2 × ADC
V/Y
PAL
Q3442 74
AMP
R
+ 10 Q3501 L.P.F. Q3504
3
-
Analog
BUFFER BUFFER
Component
Processing
Front-End
G
+ Q3502 L.P.F. Q3505
15 2
-
Contrast
AGC
BUFFER BUFFER Saturation
4 × ADC
Brightness
B
+ Q3503 L.P.F. Q3506
12 1
-
BUFFER BUFFER
FB
80
Q3461
AMP
Q3401
R AMP
Q3402
L AMP
IC3702
RESET
4 OUT
15
Y07 31
Color
Decoder 2DScalar Output
Mixer
PIP Formatter
NTSC Y00 40
Panorama
PAL
Contast
SECAM
C07 31
Brightness
Peaking
Saturation
Tint
C00 40
H Sync
Sync
56
+
V Sync
Clock 57
LL Clock
Matrix 28
Generation
Tint IIC Bus
Clock
Gen.
14 13
IC4601
LVDS TRANSMITTER
TX0+
47
TX0-
48
14 12 Y07
TX1+
45
11 7 8
TX1-
6 4 46
TX2+
10 8 Y00
41
TX2-
24 23 C07 42
TX3+
22 20 8
37
TX3-
19 15
38
18 16 C00
27 HS
TXC+
28 VS
39
CLK IN
31
PLL TXC-
40
17
CLKSEL
32
/PDWN
IC3305 IC3311
DAC ICC EXPANDER 5V<=>3.3V
/POWN
5 14 7 SCL 2
P1 SCL
CLK SEL
6
P2
SDA 15 6 SDA 3
IC3699
EEPROM
SCL 6
SDA 5
HT-Board Block Diagram
42WP37
H1
B3 TX0+
B2 TX0-
B6 TX1+
B5 TX1-
B9 TX2+
B8 TX2-
TX3+
B15
B14 TX3-
B12 TXC+
B11 TXC-
A32 HD
A30 VD
B25 SCL2
B24 SDA2
V/Y
A38
A26 R
L
A28
S2 DET
B36