Daewoo DWP-28W2ZLF Service Manual page 8

1-3 ATSS sorting method
The TV set sweeps all the TV bands from beginning of VHF to end of UHF. The TV controlling software
for each program checks if a VPS CNI code is transmitted. If no VPS CNI code is found, the system check
if a CNI code is transmitted in the teletext lines ( Packet 8/30 format 1 ). If such a code ( VPS or teletext )
is found and if this code is in the ATSS list, the program is automatically named.
The programs found are then sorted in 4 groups :
Group I : It contains all the programs from the selected country and named by the TV controlling
software. Within this group the sorting order is fixed by the ATSS list.
Group II : It contains all the programs with a strong signal strength which are not listed in group I.
Group III : It contains all the programs with a weak signal strength which are not listed in group I.
Group IV : If two or more programs with the same code are found, only the strongest ( or if they have the
same level the one with the lowest frequency) is listed in group I, II or III. The others are listed in group
IV.
Note : If two programs with the same name but a different code are found these two programs are listed in
group I, II or III ( e.g. Regional program SW3 in Germany ).
The sorting order within group II, III, and IV is based on the channel frequency. The program with the
lowest frequency is allocated the first rank in its group, and so forth until the last program of the group
which has the highest frequency.
Program Group
number
1
2 Group I
...
n
n+1
... Group II
m
m+1
... Group III
p
p+1
... Group IV
q
q+1
... not used
99
0
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Service manual WP-795
Program Group
number
1
... Group II
m
m+1
... Group III
p
p+1
... Group IV
q
q+1
... not used
99
0
Special case : Country selection = Others
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