Philips 32PF9968/10 Service Manual page 29

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Important remark:
release reset audio 10 sec after
entering standby to save power
Service Modes, Error Codes, and Fault Finding
Semi Stand by
If ambientlight functionality was used in semi -standby
(lampadaire mode), switch off ambient light
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
Wait 10ms
Switch the NVM reset line HIGH.
Disable all supply related protections and switch off
the +1V8 and the +3V3 DC/DC converter
Wait 5ms
switch off the +1V2 DC/DC converters
Switch OFF all supplies by switching HIGH the POD -
MODE and the ON-MODE I/O lines.
Stand by
Figure 5-9 "Semi Stand-by" to "Stand-by" flowchart
Q523.1U LA 5.
action holder: MIPS
action holder: St-by
autonomous action
*) 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.
For PDP this means
CPUGO becomes low.
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