RE: MD: Refurbished Sharp 702s

2000-03-02 Thread Wei Zhang


 I just wanted to post a warning here about Refurbished Sharp 702s that
 appear all over Ebay and other auction sites.  These "things"
 have a 30 Day
 Warranty and are NOT "Factory Refurbished".  It's unfortunate for people
 like the gentleman who has just experience problems with his refurb.

What do you mean not factory refurbished ?  Who else has the knowledge to
"refurbish" Sharp 702s in the US ?

 I try to keep an eye on it since I'm a Power Seller there.  I
 don't know how
 these units made it back out into the public, who is at fault.  If anyone
 knows any specifics on these units, let me know.  This is about
 the 5th time

Make it the 6th time.  My roomy got one of those units from ebay, and on the
40th day, the optical block failed.  Cost him $300CDN to replace the optical
block.  Yup, he paid $150 originally.

Wayne

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RE: MD: Loudness feature on stereos

2000-02-29 Thread Wei Zhang


 I consider the loudness switch on an amplifier as simply a "preset" tone
 modification which provides a bit of extra low-end and high-end
 response to
 the signal, in addition to what was obtained with the tone controls.

Actually, I think this has been stated, but a properly designed loudness
feature would be dependent on the volume.  At low volumes, the loudness
feature should be on at 100%, but at higher volumes, the loudness would
slowly be turned off, until the volume reaches a certain point where the
loudness feature would turn off completely.

Most decent units that have loudness I have seen operate this way, but
cheaper units leave it on all the time regardless of the volume.

I believe Sony's megabass operated this way, whether or not it still
operates this way I'm not clear.


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RE: MD: Off topic- Playstation 2

2000-02-25 Thread Wei Zhang


I think someone mentioned that it will be using DVD drives un/fortunately.

 Speaking of that, didn't Sony mention some sort of MD drive for the thing
 when it was in development? What ever happened to that, is it still gonna
 have that?
 
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RE: MD: 240 V

2000-01-06 Thread Wei Zhang


 md, 240 - 110, and one inside which converts from 110 to 12 or so. the
 point is that loss occurs in every transformation, although this is very
 little there still is some. and there'll be always some current
 flowing in
 the 240 - 110 converter unless you want to turn on/off the
 converter and
 md every time, so there's some loss to.

 Erm, the R-91 is a portable, is it not? I think it would be a tad
 bulky if
 it had a 110 to 12V transformer inside it :-)

 Sorry, what's transformer loss? I don't think it's got a lot to do with
 powering an MD walkman...

I think he meant that if the 240 to 110 convertor was always plugged into
the wall, even though nothing was plugged into it, the transformer would
still "use" electricity (and generate heat in the process).  Other than
that, I'm not sure what he could have meant.

 If you go for the Japanese one, you'll end up with a brick-in-the-wall
 transformer which converts from 240-110, then the 110-DC transformer which

Actually, It's 100V in Japan, not 110.  It does make a difference to the
point that a Japanese transformer rated to work at 100V plugged into an 110V
source could damage the portable.

If you are getting a Japanese model, make sure you have a 240-100V
transformer (or at worst, a 240-110V then a 110V-100V).

I ended up buying a 110V to 100V when i moved from Japan back to Canada.

Wayne

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RE: MD: Pure marketing hype from Sony

1999-09-24 Thread Wei Zhang


 But what the accuracy of the data comes down to is that whilst the error
 correction my cause the errors on the discs, etc to be unnoticable, it is
 still ony the machine's best guess as to what should be there, so
 it isn't exactly what the original should sound like.  It may only be the

No. The error correction is based on a mathematical algorithm which allows
perfect reconstruction of the original data if the # of errors doesn't
exceed the threshold (BLER  220).


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