44
6. SMALL SIGNAL PANEL
MG5.1E
6.6 HIP, I/O select, Video processing
6.6
HIP, I/O select, Video processing
Figure 6-8
CL 86532047_017.eps
051098
HIP
7501/TDA9320 H
CVBS FE OUT
CVBS FRONT-END
CVBS 1 (SC 1)
R
G
B
FBL
CVBS 2 (SC 3)
R
G
B
FBL
Y/CVBS 3 (SC 2)
Y/CVBS 4 (Front)
(Front)
(SC 2)
(SC 1)
C
C
CVBS INT
CVBS 1
R1 IN
G1 IN
B1 IN
FBL1 IN
CVBS 2
R2 IN
G2 IN
B2 IN
FBL2 IN
Y/CVBS 3
C3
Y/CVBS 4
C4
FE CVBS
Y
OUT
U
OUT
V
OUT
PIP
OUT
COMB
Y COMB
C COMB
OUT
IN
IN
CVBS
OUT
Y
U
V
CVBS PIP
CVBS FDS
CVBS TXT
CVBS COMB
CVBS SC2
(SC 2)
HIP
General
The HIP (TDA9320H) has various inputs (see also fig 6-8).
•
Full matrix switch with:
–
2 CVBS inputs
–
2 Y/C (or additional CVBS) inputs
–
1 CVBS front end input
•
Two RGB inputs and 2 status-inputs
Outputs: Three separate switchable outputs can be used:
•
1 YUV-output is fed to the PICNIC
•
2 CVBS outputs: One for PIP/FDS (Full Dual Screen) and
the other for output to EXT2 to have WYSIWYR (What you
see is what you record)
For I/O-switching is referred to fig 6-9. The external signals are
fed directly to the I/O part of the HIP with status from pin 8 of
SCART. On the HIP there are two status inputs available (pins
15,17) with two voltage levels:
•
4:3 ? 2V2
•
16:9 ? 5V5
The CVBS status from the third SCART (only CVBS-in) is fed
to the OTC, because on the HIP there are only two inputs. This
is also for SCART 3 detection of 4/3 and 16/9. The input signals
from front are fed to the HIP and front detection is also fed to
the OTC. EXT 1 and 2 are both full SCART: Thus CVBS and
RGB. The RGB-selection is done in the HIP. If both SCARTS
have a RGB-input then EXT2 has the highest priority. EXT2 is
meant for VCR and has therefore some additional signals in
relation to EXT1. EXT2 has also the possibility for Y/C in/out
and Easylink-Plus (P50). Y in/out is with pins 20/19 and chroma
in/out with pins 15/7. This is different in the GFL-chassis, there
was only pin 15 used for C-in and C-out. Easylink is handled via
pin 10 of the SCART and this is a bi-directional communication.
From chassis GFL onwards Easylink was introduced.
The next features are supported by Easylink:
•
Signal quality and aspect ratio matching
•
One touch play
•
One touch text
•
PIP
•
Preset download
•
WYSIWYR
•
Automatic Standby
With Easylink-Plus is added:
•
Country and language installation
•
System Standby
•
Intelligent set top box features
•
NextView download
•
Timer record control
•
VCR control feature
