Sharp 64LHP5000 Service Manual page 63

Ë TA1276AN (VIDEO ASSY: IC5251)
CHROMA SYNC DEFLECTION PROCESSING IC
PAL/NTSC SYSTEM COLOR TV IC
» Block Diagram
fsc
fsc Output 1
Output
SCP Output
2
SECAM
SECAM Control 3
Control Diffentiation
Delay
Y1 Output 4 SW
Line
TOF
U/Q Output
5
V/I Output
6
1H DL
1H DL Control
7
Control
4.43MHz X'tal
8
Automatic
adjustment
Chroma
M PAL X'tal 9
VCO
Matrix
3.58MHz X'tal
10
APC
Differentiation
APC Filter
11
Detection
Detection
Sub
Vcc1 (5V)
12
Color Detection
ACC
Chroma Input 13
Amplifier
Delay
Chroma GND
14
Line
H. V.
Y1/Sync Input
15
Sync Sep
V Sync
V-Sep.
16
V Sep
HD Output/
HD Output 17
BPP Input
Sync Output
18
Output
DEF GND 19
Phase
AFC Filter 20 Detection
<AFC-1>
21
32f VCO 32f VCO
H
H
Horizontal
22
DEF Vcc (9V)
Drive
Horizontal
Horizontal Output
23
Phase
[SW]
Shift
Bending
Phase
Correction
Detection
24
(External
<AFC-2>
CP/BPP Input)
FBP Input
25 H BLK
(H/V BLK Input)
Digital GND 26
2
I C Bus
27
SDA
Decoder
SCL 28
The double speed mode can be set by connecting Pin 23 to VCC.
(Note)
[ ] indicates for double speed mode. (External clamp pulse input mode)
SCP
Output
Color
G-Y Axis
Matrix
Delay
Line Unicolor
Color
Tint
Y Clamp
Black
Expansion
LPF fsc
Filter
Trap
Black
Level
Control
Chroma
CW
Demoduration
Compensation
P/N
Chroma
BLK
DC
Playback
ACC
Sharpness
Delay
Line
TOF SW
SRT
Sharpness
Control
fsc
Trap
Y NR
SW
Amplifier
Sub
Contrast
Sep
Unicolor
Clamp
Sync
Halftone
WPS
RGB
Matrix
Mode
SW
Internal Clamp Mode
or
External Clamp Mode
Horizontal Vertical
Count Down Count Down
(External
VBLK)
H Parabola
VP Output
D/A
Register
Converter
Cut-Off IK Cut-Off
Clamp Halftone
Color
IQ-UV Fresh
Delay
SW
Converter Color
Line
Black
Peak
Detection
APL
Detection
DL SW
ABCL
Amplifier
YM SW
R.G.B. S/H
IK Cut-Off
RGB
SW
ACL
SW
Contrast
Clamp
RGB
Brightness
YS SW
Cut-Off
Cut-Off
63
64LHP5000
PROJECTOR UNIT
56 SENS Input
R S/H
High Bright
R S/H
55
Color
Color
54 Color Limiter
Peak
CDE
Detection
53 Y2 Input
U/Q Input
52
IQ-UV
Clamp
V/I Input
51
Black Peak Hold
50
APL Detection
49
VSM
VSM Output
48
Mute
VSM YM Input
47
Amplifier
46 Vcc3(9V)
HPF
ABCL Input
45
RGB
TEXT GND
44
Output
R Output
43
BLK
G Output
42
Clamp
B Output
41
Drive
40 Vcc2 (9V)
Analog OSD
39
OSD
R Input
Amplifier
Analog OSD
38
G Input
Clamp
Analog OSD
37
B Input
Ys1
36
YS SW
(Analog OSD)
35 Analog R Input
34 Analog G Input
33 Analog B Input
Ys2
32
(Analog RGB)
VP Output
31
30
G S/H
G S/H
29
B S/H
B S/H
100IRE
=2.3Vp-p