Forum Thread

Stereo turned itself on. Causes?

sard 522 19 June 20, 2011 at 09:24 AM
In my bedroom, I have an old boombox (like 20 years old) that I use to listen to a book on CD if I can't fall asleep. I end up only using it like once or twice a week.
It has a remote (been years since I replaced the batteries) and plays CDs, Casettes and has a radio.

So last night, I got up to use the bathroom and reach over to get my glasses in the dark, and the CD starts playing. I was thinking, I must have hit the remote while reaching for my glasses.
So I turn it off.
A few minutes later the CD starts up again, I shut it off and it turns back on.

Throughout the night (I kept waking up) the CD would start playing, it seems like its every 10 minutes or so, so finally I turned the volume to zero, and then in the morning I unplugged it.

I plugged it in earlier today, and so far it has not turned on.

Any ideas what could have caused it?

I had some thoughts:
1. There was a short inside the stereo and caused the CD to start. But its been fine so far tonight, so I dont think its that.
2. My cellphone next to my remote caused some kind of interference and caused the CD to play. But I usually leave my cell next to my remote without problems.
3. The batteries on the remote are dying out and caused spikes in voltage which triggered the remote to play the CD, but its been fine so far today.
4. Theres some kind of outside cross-signal thing that set off the CD player. But this has never happened before and it was the middle of the night, so I doubt someone would be using a garage door opener multiple times at 3 am.
5. There were some kind of power surge overnight, which caused the stero to turn on. But its strange that it never happened before, and it only happened that night.

My girlfriend is freaking out about it, so I have to find her some kind of logical explanation for it.
Im sure it could be 1-5, but it has never happened before, and since that night (all of Sat night) it has not happened again.

Thanks

12 Comments

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#2
Poltergeist?
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#3
1.ghosts
2.monster in closet
3.lame excuses for listening to justin bieber all night
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#4
6. 20 year old boombox
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#5
i vote for a short in the boombox that was intermittently making an ON connection. when you plugged/unplugged, you may have jarred the box enough to "permanently" disconnect the short.

your girlfriend shouldn't be worried...if it had turned itself on when it was unplugged, then it's time to start freakin'.
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#6
Quote from bubbachuck View Post :
your girlfriend shouldn't be worried...if it had turned itself on when it was unplugged, then it's time to start freakin'.
laugh out loud This I got to agree with

You sure your gf is not playing a prank on you?
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#7
Quote from sard View Post :
Throughout the night (I kept waking up) the CD would start playing, it seems like its every 10 minutes or so, so finally I turned the volume to zero, and then in the morning I unplugged it.

I plugged it in earlier today, and so far it has not turned on.

Any ideas what could have caused it?


My girlfriend is freaking out about it, so I have to find her some kind of logical explanation for it.

Thanks
Just a bug in the old stereo and had it happen to me with my AIWA. Look at the power setting or use a power strip to cut off the power. You can also have it look at too.
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#8
battery in the remote might be failing
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#9
I'd suspect the control circuitry that turns everything on and off. Sometimes the problem with it is a bad cable connection (plug-in or soldered) between the circuit board where the controls are located, but often that board cracks at a solder joint. Also look for small terminator resistors that are supposed to hold signals in the off condition unless their associated buttons are pushed.

A 20-year-old boombox may be Japanese or Taiwaese and have a repair manual available for it at http://www.ElektroTanya.com and is probably of much higher quality than today's junk (would you believe fake stereo?).
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#10
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#11
What I don't understand is why your looking for a logical explanation for her. You could have so much fun with this, make up stories for what ever song is playing, stories about things that may have happened where you live, etc.
But seriously, probably just old age and a short. I had an old mini stereo in my kitchen that acted similiar. We only plugged it in when we wanted to use it, you never knew when the cd changer would start spinning and music would blast. Finally it completely died.
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#12
OP

Place a object that will block the IR receiver port (the part that you have to point the remote at).

I wonder if somehow some stray IR signal is shining through the window at the radio...

My truck radio has a remote for it (It came with it as I kind of think it's a bit silly to have a remote for one's truck radio). There was a section of road that my CD would eject by itself...no buttons pushed by me...but it would always be at the same section of road. I think I was getting some stray IR pointed at my radio as I went by and it would eject.
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