Philips 42PF9945 Service Manual page 25

EN 24 5. FTP1.1E
ON/OFF switch to ON
start time extraction
stand-by bit = off
Step 1
Step 2
Initialize HIP: IF, source selection, 2fh input, video processing
Step 3
Service Modes, Error Codes, and Fault Finding
OFF
OTC gets supply voltage
OTC resets, Initialise IO
pins
Read NVM identification
enable watchdog
Stand-by
Activate MSP reset
Put Stand-by line LOW
Keep sound amplifiers muted with
sound enable = high
+5V and +8V is switched on
+8V and +5V get their nominal
level, detected by the OTC
Activate protection algorithms for +8V and +5V
and I²C (start I²C protection the moment the
component is initialised).
Read rest of NVM information
Switch on the syncoutput: set_syncout_tristate= off
Initialize tuner
Initialize 3D Combfilter (US
only)
Initialize PICNIC
Start time extraction
Deactivate reset MSP and
Initialize MSP
Initialize EPLD
Stand-by bit set ?
yes
Semi stand-by
Figure 5-2 Stepwise start-up diagram.
t<250ms
t>400ms
no
Switch On PDP
or
Initialize PDP
ON
t<500ms
t<1500ms
Step 5
CL 36532053_064.eps
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