NEC PlasmaSync 50MP1 User Manual page 106

(3) Flow of 480P, 720P (chrominance input), and 480P, 720P (RGB input) signals
"YU"
Change Size
IC8502
The chrominance (or RGB) signal input entered from the YU connector is converted into a digital signal at
the AD converter, IC6501. (Processing of YUV or RGB x 8 bits x 2 phases = 48 lines) IC7501 is used for the
processing of color depth and tone for the chrominance (422) signal and the resultant signal is converted
into an RGB signal. The RGB signal is once put into chrominance conversion for the processing of color
depth and tone. Since then, the signal is again converted into an RGB signal. IC8502 is in charge of screen
size conversion for normal size, full size, digital zoom, etc. IC9000 sends out an output signal of IC8502 to
IC8003. This IC8003 is in charge of enhancer processing and NR processing. The processed signal input is
entered in IC9000 again. In this IC9000, γ processing, gradation processing, and white balance processing
are carried out for digital video signals. In addition, the synthesis of ON-screen signals is also carried out
there. In IC9003 and IC9004, 48-bit parallel signals are processed for conversion into LVDS serial signals
and the output is sent to the plasma display module ("AD" connector).
(4) Flow of RGB1/2 (analog RGB) signals
"PC"
Change Size
IC8502
The RGB signal input entered from the PC connector is converted into a digital signal at the AD converter,
IC6701. (Processing of RGB x 8 bits x 2 phases = 48 lines) IC7501 sends out an output signal of IC6701 to
IC8502. IC8502 is in charge of screen size conversion for normal size, full size, digital zoom, etc. IC9000
sends out an output signal of IC8502 to IC8003. This IC8003 is in charge of enhancer processing and NR
processing. The processed signal input is entered in IC9000 again. In this IC9000, γ processing, gradation
processing, and white balance processing are carried out for digital video signals. In addition, the synthesis
of ON-screen signals is also carried out there. In IC9003 and IC9004, 48-bit parallel signals are processed
for conversion into LVDS serial signals and the output is sent to the plasma display module ("AD" connec-
tor).
(5) Flow of digital signal inputs (RGB3)
Panel Link
receiver
IC7002
Change Size
IC8502
AD
LPF
Converter
30MHz
IC6501
Select
IC9000
AD
Select
Converter
IC7501
IC6701
Select
IC9000
Select
IC7501
Select
IC9000
422→RGB
IC7501
γ Process
Enhance/NR On screen
IC8003 IC9000
γ Process
Enhance/NR
On screen
IC8003
IC9000
γ Process
Enhance/NR
On screen
IC8003
IC9000
8
Parallel→
serial
IC9403, 4
Parallel→
serial
IC9403, 4
Parallel→
serial
IC9403, 4