Philips 8000 Series Service Manual page 26

EN 26 5. Q551.1E LA
Important remarks:
release reset audio 10 sec after entering
standby to save power
Also here, the standby state has to be
maintained for at least 4s before starting
another state transition.
2010-Jun-25
Service Modes, Error Codes, and Fault Finding
Semi Stand by
If ambientlight functionality was used in semi-standby
(lampadaire mode), switch off ambient light (see CHS
ambilight)
Delay transition until ramping down of ambient light is
finished. *)
transfer Wake up reasons to the Stand by µP.
Switch Memories to self-refresh (this creates a more
stable condition when switching off the power).
Switch AVC system in reset state (reset-system and
reset-AVC lines)
Switch reset-USB, Reset-Ethernet and Reset-DVBs
LOW
Wait 10ms
Disable all supply related protections and switch off
the DC/DC converters (ENABLE-3V3n)
Wait 5ms
Switch OFF all supplies by switching HIGH the
Standby I/O line
Stand by
Figure 5-9 "Semi Stand-by" to "Stand-by" flowchart
back to
div. table
*) If this is not performed and the set is
switched to standby when the switch off of
the ambilights is still ongoing, the lights will
switch off abruptly when the supply is cut.
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