Philips BJ3.1A LA Manual page 20

EN 20 5. BJ3.1A LA
5.3 Stepwise Start-up
The stepwise start-up method, as known from FTL/FTP sets
(EMG based sets) is not valid any more. There are two possible
situation: one for protections detected by standby software and
one for protections detected by main software.
When the TV is in a protection state due to an error detected by
standby software (and thus blinking an error) and SDM is
activated via shortcutting the pins on the SSB, the TV starts up
until it reaches the situation just before protection. So, this is a
kind of automatic stepwise start-up. In combination with the
start-up diagrams below, you can see which supplies are
present at a certain moment. Important to know here is, that if
e.g. the 3V3 detection fails (and thus error 11 is blinking) and
the TV is restarted via SDM, the Stand-by Processor will
enable the 3V3, but will not go to protection now. The TV will
stay in this situation until it is reset (Mains/AC Power supply
interrupted).
On
The protection state is hardware wise identical to the standby state but
has other, limited wake up reasons.
Service Modes, Error Codes, and Fault Finding
Mains
off
- WakeUp
requested
- Acquisition
needed
St by
(Off St by) - No data Acquisition
required
and no POD present
- tact SW pushed
- WakeUp
requested
- Acquisition
needed
- POD Card removed
- tact SW pushed
POD
St by
Figure 5-3 Transition diagram
When the TV is in protection state due to an error detected by
main software (Viper protection) and SDM is activated via
shortcutting the pins on the SSB, the TV starts up and ignores
the error. Due to architectural reasons it is possible that the TV
will end up in an undefined state (e.g. when the fast I
blocked). In this case diagnose has to be done via ComPair.
The abbreviations "SP" and "MP" in the figures stand for:
• SP: protection or error detected by the Stand-by
Processor.
• MP: protection or error detected by the VIPER Main
Processor.
In the next transition diagrams for "POD" should be read "CI".
Off
Mains
on
WakeUp
requeste
d
Semi
St by
- St by
requested
- tact SW
pushed
No data
WakeUp
Acquisition
requeste
required and
d
POD present
GoToProtection
GoToProtection
Active
GoToProtection
Protection
G_15960_117.eps
120107
2
C bus is