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Service Modes, Error Codes, and Fault Finding
Important remark:
release reset audio 10 sec after
entering standby to save power
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 DC/DC converter (via the Enable-3V3 I/O line)
Wait 5ms
Switch "off" the +1V2 DC/DC converters
Switch "off" all supplies by switching HIGH the
standby I/O line..
Stand by
Figure 5-8 "Semi Stand-by" to "Stand-by" flowchart
Q522.3E LA
5.
*) 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 .
I_18010_072.eps
EN 21
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