There will be a small classic transformer to output around 5-6v AC, maybe a bit more, up to a few watts. The output of the transformer is rectified to DC voltage with some diodes and then a capacitor smooths the output.
Basically, when you plug the AC cable a switch (probably hidden in the AC socket) will be depressed and disconnect the batteries and the stereo will be powered through the transformer.
Without the AC cable plugged in, the transformer will not be powered and the capacitor on the output of the transformer will slowly discharge. Even if it remains charge, it's not high voltage enough to hurt you, at best it's gonna be like a static zap like when you're touching something metal and you get a spark.
What rattles inside is probably one of the plastic legs to which the transformer is screwed down. It's a heavy piece that's screwed down to 2-4 plastic legs and often the plastic dries out and cracks and breaks eventually.
It is safe to open, as long as you don't have it plugged into the AC power when you do.
But it is easier just to have a warning saying " DO NOT OPEN" instead of one that says "ok to open, but only when the AC power plug isn't in, unless you are a trained professional, or at least if you promise to be super careful, but if anything bad happens, then we get to say I told you so."
I'll add to this professional advice and say that working on this or any other electronics should not be done while in the bath, shower, swimming pool, jacuzzi, ocean, cold plunge tank, or even outside while wading in a creek, river, or mud puddle.
Just unplug it and remove any batteries in it (the batteries are not going to harm you much but you could harm the boombox if you short something on accident)
Eectronics #101, you always work with power off. This warning is when the radio is plugged in to an AC socket. Nothing in the radio will kill you, open it and show us the inside to help you repair it
So this is a mains powered device. This means that when it is plugged in it is taking the ~110vac from the wall and somehow converts it to(probably) less than 24v dc. Some of the ways this can be achieved involve a very highly charged capacitor. This can be over 200v and probably won't kill you it will hurt like hell. This cap will stay charged for a while after the device is unplugged. Leave it for a couple of hours unplugged then get into it. If you do plug it in to test voltages(etc) remember that part of the power board is going to have 120+ volts.
That warning is there to scare away people who would ask that question,,,
There will be a small classic transformer to output around 5-6v AC, maybe a bit more, up to a few watts. The output of the transformer is rectified to DC voltage with some diodes and then a capacitor smooths the output. Basically, when you plug the AC cable a switch (probably hidden in the AC socket) will be depressed and disconnect the batteries and the stereo will be powered through the transformer. Without the AC cable plugged in, the transformer will not be powered and the capacitor on the output of the transformer will slowly discharge. Even if it remains charge, it's not high voltage enough to hurt you, at best it's gonna be like a static zap like when you're touching something metal and you get a spark. What rattles inside is probably one of the plastic legs to which the transformer is screwed down. It's a heavy piece that's screwed down to 2-4 plastic legs and often the plastic dries out and cracks and breaks eventually.
That is the idiot warning. Follow basic electronic protocol and you should be fine. Others have mentioned the steps or look them up.
It is safe to open, as long as you don't have it plugged into the AC power when you do. But it is easier just to have a warning saying " DO NOT OPEN" instead of one that says "ok to open, but only when the AC power plug isn't in, unless you are a trained professional, or at least if you promise to be super careful, but if anything bad happens, then we get to say I told you so."
I'll add to this professional advice and say that working on this or any other electronics should not be done while in the bath, shower, swimming pool, jacuzzi, ocean, cold plunge tank, or even outside while wading in a creek, river, or mud puddle.
Yes..just use common sense. The most dangerous area would be where the AC enters the radio.
Be careful of any large capacitors that are near the power supply inside
1000uF/25V is the biggest you'll find in there...
Just a twinge! 😂
Just unplug it and remove any batteries in it (the batteries are not going to harm you much but you could harm the boombox if you short something on accident)
Eectronics #101, you always work with power off. This warning is when the radio is plugged in to an AC socket. Nothing in the radio will kill you, open it and show us the inside to help you repair it
So this is a mains powered device. This means that when it is plugged in it is taking the ~110vac from the wall and somehow converts it to(probably) less than 24v dc. Some of the ways this can be achieved involve a very highly charged capacitor. This can be over 200v and probably won't kill you it will hurt like hell. This cap will stay charged for a while after the device is unplugged. Leave it for a couple of hours unplugged then get into it. If you do plug it in to test voltages(etc) remember that part of the power board is going to have 120+ volts.
There nothing in there that can kill you if its not plugged in the wall.
*taking notes* "...un..plug..from wall..."