Philips 42" plasma almost comes on by itself ? (Otherwise works fine)

Hi all,

I bought this Philips plasma TV from Costco (Model# 42PF9431D/37). It is on
the wall in my bedroom. I noticed that it would click as if I turned it on
and after 10 seconds click again like if I turned it off when the TV is off.
This happens like once or twice a day. Because it has done it at night when
the room is completely dark, I can see the screen lights up a bit. It never
comes completely on when it is doing this. Otherwise the TV works fine, no
video or audio problems at all. After a few times of these I decided to take
it back to Costco and got another (same model no.). Guess what happened? ...
I got the same problem again :-(. So I decided to do some things to rule out
the power outlet:

I plugged it into an extension and into another outlet (away from my
bedroom). No change.
I plugged it into a UPS. No change
I cover the IR sensor in front of the TV. No change.

I finally called Philips and they referred me to a repair center. I just got
it back after they had it for two month. The receipt shows they changed
something called PSU and SSB. Here is the depressing part ... NO CHANGE!.

I called my credit card company and I can do something with them to return
it but I really like the TV. Other than this click on, 10 secs later click
off, it really is a nice set. Not to mention that the installation is
already done on the wall. Anyway ...Can anyone suggest what else I can check
in my place that may be causing this TV to do this ?

Thanks a bunch everyone... comments/suggestions welcome.

 

Try the easy thing first, put some black electrical tape over the IR sensor
on the set and see if it still happens.

If all else fails, just take it back to Costco, they have an outstanding
return policy.

 

Is there a programmable wake-up mode (like a clock radio). Is there any
other programmable feature that might cause this?

Do you have ghosts? Just kidding, as I know how frustrating these things
can be.

 

Question? Did anyone check if NAP has a software upgrade for the specific
device??? And then install it?????

 

I checked their web site and I'm running the latest.

Thanks

 

There is a setting for the time but it looks like it is only to display it
on the screen, I can't find a programmable "On" feature and remember that it
doesn't come all the way on. The screen gets slightly bright for the 10 secs
then it goes dark after the second click. Effectively turning it off. One
thing I forgot to mention is that the front green LED that it is on when the
TV is actually on does not turn on during the 10 secs glitch.

Thanks

 

Hi...

Don't know your set; heck I'm so old I don't know much of
anything anymore

Nevertheless, can't help wondering if your set doesn't
have an auto off menu setting for a certain time of day?
(for us old folks who fall asleep on the couch.) And if so,
it isn't *slightly* waking up so as to turn itself off?

Take care.

Ken

 

Call Ghostbusters.

 

Check with Philips, ask if there have been strange problems originating in
their SSB (Small Signal Board), I think they refer to it as an image board
also.

 

Are you on cable, dish, or using off the air broadcast?

I think that some cable systems periodically send a signal over the cable
to disable unauthorized [the authorization to receive their signals has
expired -- the bill hasn't been paid] decoder devices.

Could such a signal be activating some of the electronics in your set?

Have you tried disconnecting all signal inputs at night to see if it stops
clicking???


--
bz

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

 

I haven't tried this before. I just turn the off timer to 180 mins (the
max). It was set to zero ... I haven't been home to hear anything but if it
did anything I should know before monday. I'll try your suggestion next if
this fails.

Thanks

 

Could this have anything to do with "burn in mode"?

 

Sorry, I don't understand what you mean. Could you explain further please ?

Thanks