While travelling in the Caribbean I plugged a combination CD/cassette/radio
portable stereo into what appeared to be a normal 110V ac outlet. The
digital radio dial lit up with the frequency of the last FM station that I
listened to. Not bothering to tune in a station at the time I turned the
unit off. Later that evening my girlfriend tried to play a CD, however the
boom box gave no indication whatsoever that it was receiving power. Even
though it no longer works, it brought it back to the States with me. By any
chance am I likely to find just a blown fuse or some other easy repair?

Thanks.

John

"Redlocks" writes:

While travelling in the Caribbean I plugged a combination CD/cassette/radio
portable stereo into what appeared to be a normal 110V ac outlet. The
digital radio dial lit up with the frequency of the last FM station that I
listened to. Not bothering to tune in a station at the time I turned the
unit off. Later that evening my girlfriend tried to play a CD, however the
boom box gave no indication whatsoever that it was receiving power. Even
though it no longer works, it brought it back to the States with me. By any
chance am I likely to find just a blown fuse or some other easy repair?

It's possible. Only way to know will be to troubleshoot it. It's unlikely
anyone has a schematic so it will be a matter of going inside and tracing
the wiring, measuring voltages, etc.

--- sam | Sci.Electronics.Repair FAQ Mirror: http://repairfaq.ece.drexel.edu/
Repair | Main Table of Contents: http://repairfaq.ece.drexel.edu/REPAIR/
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| Mirror Sites: http://repairfaq.ece.drexel.edu/REPAIR/F_mirror.html

Note: These links are hopefully temporary until we can sort out the excessive
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"Redlocks" wrote in message
.net...
While travelling in the Caribbean I plugged a combination
CD/cassette/radio
portable stereo into what appeared to be a normal 110V ac outlet. The
digital radio dial lit up with the frequency of the last FM station that I
listened to. Not bothering to tune in a station at the time I turned the
unit off. Later that evening my girlfriend tried to play a CD, however the
boom box gave no indication whatsoever that it was receiving power. Even
though it no longer works, it brought it back to the States with me. By
any
chance am I likely to find just a blown fuse or some other easy repair?

Thanks.

John



Probably burned out the primary of the power transformer, if it has a single
(or fairly common) secondary(s) then you shouldn't have too much trouble
finding a suitable replacement. It might have a thermal fuse embedded in it
that blew, you may be able to get in there and replace that too.

"Redlocks" wrote:

}While travelling in the Caribbean I plugged a combination CD/cassette/radio
}portable stereo into what appeared to be a normal 110V ac outlet.

Normal as in 110 volts, yes...but Jamaica is 50 Hz, not USA 60 hz.

}By any
}chance am I likely to find just a blown fuse or some other easy repair?

So maybe the power transformer overheated...try testing both primary
and secondary for continuity.

Stan.

[CUT]

Those portable stereos do have a simply transformer. It in many cases have
only one secondary which usually is about 8 VAC @ 20-30VA. Yeah, simply
transformers (no switching) can overheat and burn when used to a different
HZ frequency
DANGER : You may ask for the tension/frequency of the state U are going.
Examples :
AMERICA/CANADA (excluding South America) 110V @ 60HZ
NEW YORK SUBNET 600V @ 400HZ
in south america there isn't a standard, in most of cases there are 117vac
or vdc, or 110vac, or 220vac @ 50 or 60Hz.
Check before !!!!

Inti

"Stan®" wrote:

}[CUT]
}
}Those portable stereos do have a simply transformer. It in many cases have
}only one secondary which usually is about 8 VAC @ 20-30VA. Yeah, simply
}transformers (no switching) can overheat and burn when used to a different
}HZ frequency
}DANGER : You may ask for the tension/frequency of the state U are going.
}Examples :
}AMERICA/CANADA (excluding South America) 110V @ 60HZ
}NEW YORK SUBNET 600V @ 400HZ

????

Are you saying that somewhere in the state of New York the power at home
wall outlets is 600V @ 400HZ?

If so, cite reliable references please.

Stan.

"Stan" wrote in message
...
"Stan®" wrote:

}[CUT]
}
}Those portable stereos do have a simply transformer. It in many cases
have
}only one secondary which usually is about 8 VAC @ 20-30VA. Yeah, simply
}transformers (no switching) can overheat and burn when used to a
different
}HZ frequency
}DANGER : You may ask for the tension/frequency of the state U are going.
}Examples :
}AMERICA/CANADA (excluding South America) 110V @ 60HZ
}NEW YORK SUBNET 600V @ 400HZ

????

Are you saying that somewhere in the state of New York the power at home
wall outlets is 600V @ 400HZ?
The 600V @ 400Hz isn't available for home standard contracts. It is only
present under the ways, in the subway ! Search in the RepairFaq of Sam
GoldWasser

Intiglietta

"Stan®" wrote in message
...

The 600V @ 400Hz isn't available for home standard contracts. It is only
present under the ways, in the subway ! Search in the RepairFaq of Sam
GoldWasser

What does the subway use it for?
--
N

"NSM" wrote in message
news:fkTKd.165578$KO5.111246@clgrps13...

"Stan®" wrote in message
...

The 600V @ 400Hz isn't available for home standard contracts. It is only
present under the ways, in the subway ! Search in the RepairFaq of Sam
GoldWasser

What does the subway use it for?
--

Probably the subway train itself, I remember reading that the light rail
system in Portland, OR runs on 600V, it's likely a standard for electric
trains.

I seriously doubt it's available at any sort of receptacle in the subway
system accessible to the average person, that would be a dissaster waiting
to happen.

"Stan®" wrote:

}"Stan" wrote in message
...
} "Stan®" wrote:
}
} }[CUT]
} }
} }Those portable stereos do have a simply transformer. It in many cases
}have
} }only one secondary which usually is about 8 VAC @ 20-30VA. Yeah, simply
} }transformers (no switching) can overheat and burn when used to a
}different
} }HZ frequency
} }DANGER : You may ask for the tension/frequency of the state U are going.
} }Examples :
} }AMERICA/CANADA (excluding South America) 110V @ 60HZ
} }NEW YORK SUBNET 600V @ 400HZ
}
} ????
}
} Are you saying that somewhere in the state of New York the power at home
} wall outlets is 600V @ 400HZ?
}The 600V @ 400Hz isn't available for home standard contracts. It is only
}present under the ways, in the subway !

OK...since the original post was about boomboxes failing when plugged
into non-USA standard wall sockets, perhaps manufacturers should put
a warning label on them, telling users not to try to power their boomboxes
off the live rail of a subway system.

Stan.

(Stan) writes:

"Stan®" wrote:

}"Stan" wrote in message
...
} "Stan®" wrote:
}
} }[CUT]
} }
} }Those portable stereos do have a simply transformer. It in many cases
}have
} }only one secondary which usually is about 8 VAC @ 20-30VA. Yeah, simply
} }transformers (no switching) can overheat and burn when used to a
}different
} }HZ frequency
} }DANGER : You may ask for the tension/frequency of the state U are going.
} }Examples :
} }AMERICA/CANADA (excluding South America) 110V @ 60HZ
} }NEW YORK SUBNET 600V @ 400HZ
}
} ????
}
} Are you saying that somewhere in the state of New York the power at home
} wall outlets is 600V @ 400HZ?
}The 600V @ 400Hz isn't available for home standard contracts. It is only
}present under the ways, in the subway !

OK...since the original post was about boomboxes failing when plugged
into non-USA standard wall sockets, perhaps manufacturers should put
a warning label on them, telling users not to try to power their boomboxes
off the live rail of a subway system.

Yeah, then some idiot will try it just to see what happens!

--- sam | Sci.Electronics.Repair FAQ Mirror: http://repairfaq.ece.drexel.edu/
Repair | Main Table of Contents: http://repairfaq.ece.drexel.edu/REPAIR/
+Lasers | Sam's Laser FAQ: http://repairfaq.ece.drexel.edu/sam/lasersam.htm
| Mirror Sites: http://repairfaq.ece.drexel.edu/REPAIR/F_mirror.html

Note: These links are hopefully temporary until we can sort out the excessive
traffic on Repairfaq.org.

Important: Anything sent to the email address in the message header above is
ignored unless my full name is included in the subject line. Or, you can
contact me via the Feedback Form in the FAQs.

On Fri, 28 Jan 2005 14:08:01 GMT, "Stan®"
wrote:

NEW YORK SUBNET 600V @ 400HZ

Where is that? Nowhere is that voltage/frequncy available to the
general public.

"Gary J. Tait" wrote in message
...
On Fri, 28 Jan 2005 14:08:01 GMT, "Stan®"
wrote:

NEW YORK SUBNET 600V @ 400HZ

Where is that? Nowhere is that voltage/frequncy available to the
general public.

And the standard household voltage is 120v 60 Hz, not 110v.