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3.2 each information flow
3.2.1 TV
Sync
separate
uPD64083 comb filter
Tuner demodulation
RF
NTSC video
16
88
Identify color system
83
84
Y
73
C
71
SDRAM
PW1235E
LVDSON
S0
S1
SIF
CVBS
1
TEA6425 video switch
17
When NTSC,
Change the video switch by bus
74
VPC3230 识
Not NTSC
VPC3230 decode 解码
Digital video and clock
SV
PW1235 I channel
BUFF
ER
PW113
SCALER
D
DS90C383
LVDS output
30
MSP3410G
demodulation
FmorNICAM
67
sound disposal
SRS(WOW)
27
TA2024 sound
MUTE
Main control signal
1、RST1#
High enable
2、STANBY control
Low is power ON
3 MUTE high mute
4、sound switch
S0、S1
SO
D/K
BG
I
M
5、PW1235Econtrol
High enable
BUFFER and polarity
controlled by Q3
6、LVDSON control
28
amplifier
S1
1 0
1 1
0 1
0 0
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