Philips 42PF9945 Service Manual page 41

EN 100 9. FTP1.1E
2fH/3fH input flow
Selection
AV5 or AV6 Eur
AV4 or AV5 US
yes
Circuit Descriptions, Abbreviation List, and IC Data Sheets
START
Put ADC: full power
Mute sound, Blank picture
AV4 on US ?
no
Put picnic: freerun ON
Put ADC on last status from select. input
get Ebild: sam ples/line, lines/field=STDET1
wait >20 m sec
get Ebild: sam ples/line, lines/field=STDET2
wait >20 m sec
get Ebild: sam ples/line, lines/field=STDET3
STDET1=2=3?
yes
Supp standard ?
yes
sam e standard as last status?
no
Set ADC, see tookup table
wait >20 m sec
get Ebild: sam ples/line, lines/field=STDET1
wait >20 m sec
get Ebild: sam ples/line, lines/field=STDET2
wait >20 m sec
get Ebild: sam ples/line, lines/field=STDET3
STDET1=2=3?
yes
Supp standard ?
yes
Store standard as last status selected input
Set FBX, see lookup table
Set EBILD, see lookup table
Unblank, demute
wait: 200 msec
Figure 9-5 Flowchart 2fH/3fH detection
yes
no 1Fh detection in HIP?
yes
Put picnic to 1FH
Put picnic: freerun OFF
Unblank, dem ute
Set ADC to default value
no
ADC to default value ?
no
yes
no
set Ebild: blue mute
no
OSD: Message
wait 200 msec
no
CL 36532053_079.eps
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