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TV turns on by itself

Posted: Sun Jan 12, 2014 9:31 pm
by mattberlin
Hello guys,

for some reason my TV LE32B679 turns on itself intermittently. Do you have any idea what could cause this and what to investigate?

Best regards
Matthias

Re: TV turns on by itself

Posted: Sun Jan 12, 2014 9:32 pm
by juusso
Timer?

possible this is hw problem (keeping in mind your previous problem about no signal popup). B series become old enough to get damaged because of age :)

Re: TV turns on by itself

Posted: Sun Jan 12, 2014 9:34 pm
by mattberlin
No, this happens intermittently. Most days it doesn't. But sometimes it does - esp. during night time.

Re: TV turns on by itself

Posted: Sun Jan 12, 2014 9:47 pm
by juusso
checking for firmware upgrade at night

Re: TV turns on by itself

Posted: Mon Jan 13, 2014 11:42 pm
by mattberlin
How can one prevent this?
Is it imaginable that the LAN connection might cause the TV to boot?

Re: TV turns on by itself

Posted: Tue Jan 14, 2014 12:59 am
by bugficks
here you have some possbile boot reasons
SpoilerShow

Code: Select all

  <symbol name="TCTv::EBootReason">
    <enum name="BOOT_REASON_UNKNOWN" value="-1" />
    <enum name="BOOT_REASON_MEDIA_PLANNER" value="1" />
    <enum name="BOOT_REASON_RECORD" value="2" />
    <enum name="BOOT_REASON_WAKEUP_UPGRADE" value="3" />
    <enum name="BOOT_REASON_NUMERICKEY0" value="4" />
    <enum name="BOOT_REASON_NUMERICKEY1" value="5" />
    <enum name="BOOT_REASON_NUMERICKEY2" value="6" />
    <enum name="BOOT_REASON_NUMERICKEY3" value="7" />
    <enum name="BOOT_REASON_NUMERICKEY4" value="8" />
    <enum name="BOOT_REASON_NUMERICKEY5" value="9" />
    <enum name="BOOT_REASON_NUMERICKEY6" value="10" />
    <enum name="BOOT_REASON_NUMERICKEY7" value="11" />
    <enum name="BOOT_REASON_NUMERICKEY8" value="12" />
    <enum name="BOOT_REASON_NUMERICKEY9" value="13" />
    <enum name="BOOT_REASON_TVSOURCE" value="14" />
    <enum name="BOOT_REASON_PCMODE" value="15" />
    <enum name="BOOT_REASON_ONTIME" value="16" />
    <enum name="BOOT_REASON_FACTORY" value="17" />
    <enum name="BOOT_REASON_VCHIPRESET" value="18" />
    <enum name="BOOT_REASON_DV" value="19" />
    <enum name="BOOT_REASON_HOTEL_CH_LIST_UPDATE" value="20" />
    <enum name="BOOT_REASON_HOTEL_CLOCK" value="21" />
    <enum name="BOOT_REASON_DPMS_POWER_OFF" value="22" />
    <enum name="BOOT_REASON_GEMSTAR_HOST_SCAN" value="23" />
    <enum name="BOOT_REASON_GEMSTAR_DATA_DOWNLOAD" value="24" />
    <enum name="BOOT_REASON_IPTV_UPGRADE" value="25" />
    <enum name="BOOT_REASON_DPMS_POWER_NEXT_SOURCE_ON" value="26" />
    <enum name="BOOT_REASON_ADJUST_TIME" value="27" />
    <enum name="BOOT_REASON_COMMON_DATA_DOWNLOAD" value="28" />
    <enum name="BOOT_REASON_POWER_ON_CONTROL" value="29" />
    <enum name="BOOT_REASON_SOURCE" value="30" />
    <enum name="BOOT_REASON_STANDBY_SCAN_ONLY" value="31" />
    <enum name="BOOT_REASON_DEC_WAKEUP" value="32" />
    <enum name="BOOT_REASON_WIDGET_POWER_ON" value="33" />
    <enum name="BOOT_REASON_PANEL_POWER_KEY" value="34" />
    <enum name="BOOT_REASON_BACKGROUND_EPG" value="35" />
    <enum name="BOOT_REASON_FACTORY_VIEW_MODE" value="36" />
    <enum name="BOOT_REASON_REMOTE_SCHEDULE" value="37" />
    <enum name="BOOT_REASON_REMOTE_ACCESS" value="38" />
    <enum name="BOOT_REASON_SMART_GUIDE_DOWNLOAD" value="39" />
  </symbol> 

Re: TV turns on by itself

Posted: Tue Jan 14, 2014 11:09 pm
by ps282
mattberlin wrote:No, this happens intermittently. Most days it doesn't. But sometimes it does - esp. during night time.
Odd. Is it still doing this? If my tv turned on intermittently at night I'd be creeped out!

Re: TV turns on by itself

Posted: Wed Jan 15, 2014 2:07 pm
by pertecara
mattberlin wrote:Hello guys,

for some reason my TV LE32B679 turns on itself intermittently. Do you have any idea what could cause this and what to investigate?

Best regards
Matthias
Hello.
Once I read about your problem in another thread in this forum.
My UE40B8000 did the same but it happened only two or three times in its life (4 y.o.)
The reason is probably around the capacitors on power supply board.
Have you ever heard any "clicks" when the TV is off?
This is another sign.
Sometimes one of those clicks can switch on the televison.
Look for any puffy capacitors...

Re: TV turns on by itself

Posted: Sat Jan 18, 2014 7:05 pm
by mattberlin
Hello together,

thank's a lot for your responses!

@bugficks
Where can I check out the boot reasons?

@ps282
Yes indeed, this is really annoying!

@pertecara
Wouldn't broken capacitors cause the TV not to work at all?

Best regards
Matthias

Re: TV turns on by itself

Posted: Sat Jan 18, 2014 8:56 pm
by beatfreak
they could cause completely odd behaviour if they are, lets say in a state between intact and totally broken.
like short irregular voltage changes
some capacitors also have (limited) self-healing capabilities.

i used to have an uexxc6000 that had a similar behavior, including long boot time or unwanted shutdowns, this was fixed by replacing the MB