Block Diagram Of The Ddp 3315C; Description - Daewoo DTH-29U3 Service Manual

CP830F Service Manual

4.3.1 BLOCK DIAGRAM OF THE DDP 3315C

LLC
Clock
27/32/
Generator
54 MHz
Y
Y /
Input
656 YCrCb
Cb
Interface
Cr
CrCb
4:2:2 /
4:1:1
2
I C
SDA
Interface
SCL
General
purpose
PWM
PWM 1/2

4.3.2 DESCRIPTION

Video Processing
- linear horizontal scaling (0.25 ... 4), as well as nonlinear horizontal scaling panorama vision
- dynamic black level expander
- luma sharpness enhancement by dynamic peaking and luma transient improvement (LTI)
- color transient improvement (CTI)
- programmable RGB matrix
- black stretch, blue stretch, gamma correction via programmable Non-linear Colorspace Enhancer (NCE) on RGB
- two analog double scan inputs with fast blank (one RGB and one RGB/YC r C b /YP r P b selectable)
- average and peak beam current limiter
- automatic picture tube adjustment (cutoff, drive)
- histogram calculation
Deflection Processing
- scan velocity modulation output
- digital EHT compensation for vertical / east-west
- soft start/stop of horizontal-drive
- vertical angle and bow correction
- differential vertical outputs
- vertical zoom via deflection adjustment
- horizontal and vertical protection circuit
Y Y
Upcon- Picture
Cb Cb
Version/ Improve-
Cr Cr
Scaling ment
EHT
V
Sync Display-
Pro- Freq.
H
cessing Doubling
2H / 2V FIFO
(1H / 1V) Controlling
SVM
SVM
R R
Matrix /
Video
G G
PFG /
DAC
B B
NCE
V
Sawtooth /
V
Parabola
EW
Generation
H-Drive
H H
Generation
HFLB
-24-
analog
RGB-
Matrix
R
Analog
Tube
G
RGB
Control
B
Switch
V
H & V
EW
H / V
dynamic
Security
focus
H
Unit
DFVBL VPROT
PWMV HSAFETY
Pr
Y
Input
Pb
FBL
R
G
Output
B
Sense
Input
VERT+
VERT
E/W
HOUT