tc. After then the signal transforms to from 31
~
40pin digital YUV signal
(
4:2:2
)
(ITU-R656
format )and sends to PW1235 to DEINTERLACE etc
。
3.1.1 .5 DVI digital signal disposal
:
We use DVI-D interface
。
DVI digital signal
(
4channels DS signal
)
from DVI jack each send to 90
、
91
、
85
、
86
、
80
、
81
、
93
、
94pin of SiI161B. By the control of 100
、
3pin (input bus)
,
after in SiI161B(VCR
、
data resume
、
sync. Head test
、
enlarge circuit
、
decode circuit and logic interface circuit)
,
it
outputs digital R G B signal
,
which has two mode
:
one mode when 4 pin of SiI161B is low
,
it output 24bit even pixel
,
when 4pin is high
,
it output 48biteven and odd pixel data
,
we connect
4pin to ground
,
so each signal from 10
~
17
、
20
~
27
、
30
~
37pin outputs R,G,B even pixel data
,
switch with 24bit VGA digital signal disposalled by MST9885
,
and send to PW113 to transform
format
,
for sure ,the choice is control by PW113
。
DVI interface 6
、
7pin is DDC data channel
,
U7
(
24LC21A
)
is an E
2
ROM
,
which stores
some DVI data parameter information
,
it connect to DDC data channel by bus
,
at the moment of
power on
,
the status information is sent to host to identify
,
after identify
,
according to E
2
ROM
information outputs digital signal correctly
。
VGA signal
、
video signal
、
DVI signal after digital disposal
,
sends to video format disposal
ic PW113 to change the video format
,
outputs the digital R,G,B signal which fits PDP
display driver
。
PW113 the input video signal after disposalled by PW113
,
outputs 852×480 resolution digital
R,G,B signal which fits PDP panel spec and relevant sync
、
clock signal and transform them into
LVDS by DS90CF383
,
send to PDP panel to control the panel display correctly
。
29
Содержание H-PDP4201
Страница 14: ...PW113 Block Diagram 14 ...
Страница 18: ...18 ...
Страница 19: ...PW1235 Block Diagram 2 2 5 TA2024 general 19 ...
Страница 23: ...DS90CF383 Block Diagram 23 ...
Страница 26: ...26 ...
Страница 51: ...Annex 1 装配图 51 ...
Страница 52: ...Annex 2 52 ...
Страница 53: ...电源滤波器组件 内 联 电 源 线 主板组件 按键板组件 板组件 53 ...