Input Selector
U4000(TEA6415)
7.Composite Video
Composite Input
Video Conversion
Cvbs, S-Y, Cy Selector
)
3
5
0
4
C
H
4
7
(
6
1
0
1
U
)
2
5
0
4
C
H
4
7
(
2
1
0
1
U
OSD Output Selector
U1005(LC74763)
OSD
Output Buffer
U1707(MAX4016)
U1014(74HC4053)
OSD input Selector
OSD Input Buffer
U1706(MAX4016)
OSD Output Buffer
U1706(MAX4016)
Attenuation
R1100
Monitor Composite Output
to Video Conversion Circuit
Output Buffer
U4705(MAX4016)
Attenuation
R1111
Output Buffer
U1707(MAX4016)
Attenuation
R1043
MS Composite Output
U1014(74HC4053)
MS OSD Output Selector
Video4 Composite Output
Output Buffer
U4701(MAX4016)
Attenuation
R4042
VCR Composite Output
Output Buffer
U4701(MAX4016)
Attenuation
R4041
0dB(2Vp-p)
B
d
0
B
d
0
B
d
5
.
0
B
d
0
B
d
0
B
d
5
.
0
0.5dB
0.5dB
0.5dB
0.5dB
0.5dB
-6dB
0.5dB
0.5dB
0.5dB
B
d
0
B
d
5
.
0
0dB
0dB
B
d
5
.
0
B
d
5
.
0
B
d
3
.
0
B
d
3
.
0
B
d
5
.
0
0dB
0dB
0dB
If use MS composite video
output, the user need
connect composite video
to composite video input
If select VCR
as Input,
disable the
output
If select
Video4 as
Input, disable
the output
DVD
SAT
VCR
Video4
Video5
Video6
If source is selected as
"Normal" on OSD, select
Composite
If source is selected as "S
Video" on OSD, select Sy
If source is selected as
Component("CV1 etc") on
OSD, select Cy
If OSD is not used bypass
OSD circuit
3-12