Daewoo DWP-28W2ZZF Service Manual download pdf (Page 8)

Service manual WP-795

- 7 -

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

number

Group Skip

2 Group I

...

n+1

... Group II

m+1

... Group III

p+1

... Group IV

q+1

... not used

➼

Program

number

Group Skip

... Group II

m+1

... Group III

p+1

... Group IV

q+1

... not used

➼

Special case :

Country selection = Others

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 69 70

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Daewoo DWP-28W2ZZF Service Manual Page 8

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