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Levinson #37 'ac bad' & 'set volt'

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dart...@gmail.com

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Aug 2, 2006, 9:33:21 PM8/2/06
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Anyone know what these messages mean, which came after a power outage?

tia

Bret Ludwig

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Aug 2, 2006, 9:46:41 PM8/2/06
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dart...@gmail.com wrote:
> Anyone know what these messages mean, which came after a power outage?
>


If the service manual doesn't say or they won't sell or give you one,
it means, "Nuts to you you yuppie bastard!".

ScottW

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Aug 2, 2006, 10:10:35 PM8/2/06
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<dart...@gmail.com> wrote in message
news:1154568801.9...@m73g2000cwd.googlegroups.com...

> Anyone know what these messages mean, which came after a power outage?

It means either the unit lost track of its setting or something in the power
area is broken. Either one requires service.

According to this owners manual

http://www.marklev.com/No37/37manual.pdf

You can't set the power settings and the unit won't work if it thinks the
setting don't match your line frequency.
I'm guessing the power supply is a switcher and the voltage settings are in
a ROM which got corrupted...or the freq detector is fried.

ScottW


Bret Ludwig

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Aug 2, 2006, 11:32:01 PM8/2/06
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Operating Voltage
& Frequency
The Nº37 CD Transport is set at the factory (internally) for 100V,
120V, 200V, 220V,
or 240V AC mains operation as appropriate for the country in which it
is to be
sold. Make sure that the label on the rear of the Nº37 (adjacent to
the power
cord) indicates the correct AC operating voltage for your location, as
attempting to
operate the Nº37 at an incorrect voltage can damage the unit. (Note
that only
230V units are sold in the European Union countries, per CE
requirements.)
The Nº37 CD Transport is also set at the factory for operation on
either 50 or
60 Hz AC line frequencies, as appropriate for the country in which it
is to be
sold. It will not operate if it senses an incorrect line frequency.
Warning! Neither the voltage nor the line frequency setting may be
changed by the user. There are no user serviceable parts
inside the Nº37. Only qualified, authorized service personnel
may open the Nº37 CD Transport, as hazardous voltages exist
within the unit.
If the AC mains voltage or frequency indicated on your Nº37 is
incorrect, please
contact your local, authorized Mark Levinson dealer or distributor.
The Nº37 can easily be powered by a normal 15-ampere AC mains line. If
other
devices are also powered from the same AC line, their additional power
consumption
should be taken into account.

******************************

Normal switchmode power supplies do not "sense" power supply
frequency. This one does for a reason: to screw over foreign buyers who
don't bend over and take it like a shotgun.

Fuck Mark Levinson. Or, if dismal sales of his sex book and his
divorce from Kim Cattrall are to go by, don't.

Arny Krueger

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Aug 3, 2006, 5:02:54 AM8/3/06
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<dart...@gmail.com> wrote in message
news:1154568801.9...@m73g2000cwd.googlegroups.com...
> Anyone know what these messages mean, which came after a power outage?

Serious trouble. If you have to ask what they mean, fixing them is outside
of your realm of competence. Take it to someone who at least knows what they
mean.


dart...@gmail.com

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Aug 3, 2006, 6:46:25 AM8/3/06
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Apparently the unit started working again this morning. I guess it must
have either sensed very low voltage, or line freq not close to 60Hz -
all possible with the kind of power consumption here in the northeast
yesterday (28,000 Megawatts!); or the internal settings
got corrupted and it somehow recovered??? Weird. Still, I suspect it
will happen again...

I hate hardware that will operate with certain voltages and frequency,
so time to buy a PS Audio 300 that accepts everything and you can
control the freq...

tia

Sander deWaal

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Aug 3, 2006, 9:54:00 AM8/3/06
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dart...@gmail.com said:


>Anyone know what these messages mean, which came after a power outage?


Meanwhile, your problem seems to be solved, but if ever you encounter
this problem again, just pull the plug on the unit, leave it powerless
for a couple of hours, and put the plug back in again.

--
"Due knot trussed yore spell chequer two fined awl miss steaks."

dart...@gmail.com

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Aug 3, 2006, 10:39:16 AM8/3/06
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Sander deWaal wrote:
> dart...@gmail.com said:
>
>
> >Anyone know what these messages mean, which came after a power outage?
>
>
> Meanwhile, your problem seems to be solved, but if ever you encounter
> this problem again, just pull the plug on the unit, leave it powerless
> for a couple of hours, and put the plug back in again.

Yeap - that's how it started working again, but then it failed again.
Called
Madrigal who gave me a code to reset the unit's power settings and it
seems
to work now flawlessly - we'll see.

Awesome support, btw...

Bret Ludwig

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Aug 3, 2006, 7:12:11 PM8/3/06
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Buy a REAL AC lab supply with ten times the performance cheaper. Putz.

dart...@gmail.com

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Aug 4, 2006, 1:48:46 PM8/4/06
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Bret Ludwig wrote:

> Buy a REAL AC lab supply with ten times the performance cheaper. Putz.

Thank you, Putz; I will check it out. BTW, do you have any constructive
to say? Like how it fares against other power conditioners, etc? Or do
like just like to get on the net and characterize people and waste
bandwidth?

Sander DeWaal

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Aug 4, 2006, 1:56:11 PM8/4/06
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dart...@gmail.com said:


>Bret Ludwig wrote:


Herr Ludwig Von Brathofen would love to scrap your ML37 for guitar amp
parts, he's famous for that kind of thing over in RATubes ;-)

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