Archived from groups: alt.video.laserdisc (
More info?)
The X9 already has a totally separate power supply for the digital verses
analog sections. One could consider playing with shielding by adding more
but you'd have to fit it in where it will not interfere.
Usually this comes down to the layout on the circuit boards, shielding
within the boards, distribution of Power, and quality of the boards. In
other electronics I've worked to make improvements and been successful but
you cannot achieve the quality of a better built design. The X9 was built
with the idea the DVNR would finish cleaning up the signal. The X0 and S2
were the last two single sided machine build to have low noise and a pure
picture, the CLD-97 was the best 2-sided machine. The X9 is very nice but
if you open it up you'll see it's base design is not the same as these older
units had.
I do not have the time to play with these types of things as they are very
time consuming and my kids want to play with tier Dad, that is more
important. Since HDTV's are digital you actually loose the effect of the
lower background noise as the signal gets digitized anyway.
As for the comb filter, the one in the X9 is very nice. I have not yet
found a regular TV or HDTV that can match it.
I think tweaking this unit for the best picture you can get is the biggest
improvement, otherwise for the person who wants to play more with this,
trying to make a shield to go around the video board would be the next step
and shielding the power supply would cause it to get hotter without adding
cooling.
In conclusion, when I first got my X9 I was really disappointed how the
noise levels were equal to the CLD-D704/99 family and NOT the CLD-97. I
have seen 5 different X9's and all are the same. I just about sold my X9
but was happy I kept it for my HDTV as the HDTV digitizes the signal so I
lost the smooth analog background my CLD-97 gave me. This is also why I
waited so long to get into HDTV as I'm not as happy about others with it. I
still think high end Analog is hard to beat. The LD-S2 does have a lot of
shielding inside trying for maximum low noise. The CLD-97 only really
shields the power supplies and it does fine as the initial design was
focused for low noise without DVNR.
Kurtis
"Mattias Karlsson" <nin@beta.telenordia.se> wrote in message
news:225c767a.0409081326.31328e81@posting.google.com...
> "Kurtis Bahr" <kbahr@comcast.net> wrote in message
news:<B8ydnRB684LYbKbcRVn-sQ@comcast.com>...
> > What I have done with the X9's is to fine tune the alignments to get the
> > noise to the lowest levels possible. No tweaks to get it beyond what
the
> > machine was designed for. As for the sharpness, I can adjust the Non
"HR"
> > modes so they are about as sharp as "HR" mode. I prefer this as "HR"
mode
> > also defeats the ability to adjust the 3D processing. "HR" mode is
still
> > the sharpest picture.
> >
> > Kurtis
> >
>
> Hi Kurtis!
>
> Well, I wonder if there is MORE one can do? A better power suply in
> the X9, maybe even do it 230 volt (I live in europe)? Shield of video
> circuits more to get even lower noise? Or the most crazy thing I can
> dream of, get the best comb filter today, take the composite signal as
> soon it left the laser and in the comb filter and DVI/SDI out? I would
> say that I CAN pay some sums if it's possible to get more out of the
> X9 or X0. I think that the laser is as good as it gets and one cannot
> get any other anyway. The things I see, from an amateur point of view
> is:
>
> *Better power, more shield off to lower noise to get in the video
> signal.
>
> *New comb filter and DVI/SDI out, so the signal does not have to do a
> D/A and A/D again in my Crystalio processor. S-Video cables do have a
> problem to have exactly 75 Ohm.
>
> *Maybe some other stuff can be upgraded to better?
>
> So what do you think Kurtis? I don't believe one can get so much more
> resolution out of the X9/X0, but lower noise, little better colors, I
> think one can get with better shielding inside.
>
> So any thoughts?
>
> /Mattias
*
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