Well that solder joint idea that you and PJ mentioned is intriguing - I
was jsut sort of interested in it
turning out to be something that is , as they say today, "a thing". I
have left it on radio since I wrote earlier -
and just now I popped in a cassette and it played. So for now, I can
either just leave it on or turn it on ahead of when I want to listen :-)
Thanks guys!
ann
On 7/29/2016 4:37 PM, Mark Roberts wrote:
ann sanfedele wrote:
Mark -
The" power supply" is an outlet in my wall - is that what you mean?
Nope. I was referring to the power supply internal to the boom box:
Transformer, rectifier diodes, capacitors and several voltage
regulators.
Yes, the same thing happened, in effect - with the tape and cd player...
it wouldnt come on ... and actually the cd player suddenly started playing
when I just left the cd I had in it sit.. and the tape player worked
and then didn't...
So everything stays lit up and the tape or CD keeps moving physically
but no sound comes out?
It does sound like a bad voltage regulator. This is typically a linear
regulator in these kinds of devices, a 3-pin integrated circuit
device. It could even be just a bad solder joint which makes a
connection only after it's reached a certain temperature. Hard to say
without opening it up and having a look around inside.
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