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Old 01-30-2007, 08:54 AM   #1
RobbyP
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Question Sportster Boombox Question...

I've heard people talk about radios being left on for certain periods of time, and sometime things happen to them. Can there be any effects to the Sportster radio from leaving it in the boombox and having it on overnight every night? Like will it get hot, start malfunctioning, etc.?

It's a 2nd gen Sportster Replay with weaker FM transmitter....
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Old 01-30-2007, 09:32 AM   #2
ClubSteeler
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Originally Posted by RobbyP View Post
I've heard people talk about radios being left on for certain periods of time, and sometime things happen to them. Can there be any effects to the Sportster radio from leaving it in the boombox and having it on overnight every night? Like will it get hot, start malfunctioning, etc.?

It's a 2nd gen Sportster Replay with weaker FM transmitter....
There's no simple answer. Some people never shut their radio off. However, there are a lot of reports of your radio dying. I have the same radio.

I design digital microelectronics for a living. I am shocked that these radios run on 12V. That's insane. I guess they just designed it to a car batteries voltage. They must ramp the voltage down inside the unit I would think. 12V is way overkill for today's silicon. I believe that probably 95 - 100% of the components in the radio could have been designed to work as low as 3.3V, possibly 2.5V. Heck, 5V was the norm 15 years ago. These 12V radios really run hot. There is a known issue where heat buildup affects the poorly soldered backlight on the display causing it to flicker and eventually lose contact. There is also an issue with these radio burning out, but I have not read a solution for the reason why.

The later models, like the Sportster4 are 5V radios. So they consume much less power and don't burn as hot.

If I designed these 12V radios, I woiuld have made them bigger with a fan in them, but this of course would be a bad design idea cosmetically. The problem with the boom boxes, is that the back of teh radio is enclosed, making airflow and heat dissipation that much more difficult.

I don't know the answer to your question, but I baby my sportster reply. When it's in my car, I turn the radio off before I turn the car off so there is no current inrush at ignition. When I am done listening to the boom box, I turn the radio off, turn the boombox off, and unplug it. Why risk a power surge or lightning strike?

Who knows...?? Your radio might last 10 years if you never turn it off. I would suggest you baby it a little more though, just in case.
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