Sampo PME-42V3 Manual de usuario descargar pdf (Pagina 5)

VideoSystems September2001

VideoSystemsSeptember2001videosystems.com

review, but I still haven’t watched it

from start to finish.

Let’s begin with the 42in. panels.

The best-looking video in this category

came from a panel I hadn’t expected

— Fujitsu’s PDS-4229. Even though it

has only 852x480 pixel resolution, it

was more than up to the challenge of

playing back 480i and DTV sources —

even 720p and 1080i, which require

quite a bit of downconversion.

Once I found the right combination

of gamma and contrast/brightness set-

tings, I was very happy with the re-

sult, with one minor gripe: Fujitsu

needs to fiddle a bit more with gamma

setting for movies and give the con-

trast an additional boost.

Sony’s PFM-42B1 was also a good

performer, but not quite as crisp as

the PDS-4229. Oddly enough, I ob-

served this last year on two other

Sony panels. A model with Wide VGA

resolution appeared sharper than an-

other model with the same 1024x1024

pixel matrix as the PFM-42B1. It may

have something to do with the Alter-

nate Lighting of Surfaces interlaced

pixel scanning used on the PFM-42B1,

which produces a small flicker.

The Sampo PME-42V3 performed

fairly well for using older glass, but

was hampered by the lack of access to

color temperature settings and a great

deal of false contouring in low gray

areas. Since this is Sampo’s first en-

try into the U.S. plasma market, I’ll

cut it some slack by adding that this

panel did have good black level and

contrast performance.

While testing the big boys, I ran

into an interesting problem. It was

difficult to stand far enough from some

of the panels to avoid noticing their

pixel structures. This was especially

true with the 61MP1, which is opti-

mally viewed from 8ft. to 19ft., de-

pending on whether the source is

HDTV or 480i DVD.

All three of the large panels did a

very good job with all video sources. I

calibrated them to within a cat’s whis-

ker of D6500, and the resulting DVD

and HDTV playback looked as clean

as my reference Princeton AF3.0HD

32in. HDTV monitor. It was difficult

to pick a clear winner here. NEC’s

video images tend to overwhelm the

senses. But the 61MP1 was hampered

by a somewhat high average black

level of .71 nits, which was evident

when viewing DVDs like Men in Black.

The black levels on the TH-

50PHD3U are so deep that I wonder

why Panasonic even bothered to put a

“Black Boost” control in the menu — it

isn’t needed. However, the Pioneer

seemed to produce video images with

more punch than the Panasonic, par-

ticularly under normal room lighting.

Turning off the lights immediately

shifted the advantage to the Panasonic

panel. It had a subtle rendering of

grayscales that was diminished by

switching to “Dynamic” mode.

So if you want good video, you’ll get

it on any of the three big screens. The

NEC panel needs to be placed at the

proper viewing distance, particularly

with motion 480i and HDTV programs.

It does produce some motion artifacts

that were not as evident on the

Panasonic or Pioneer.

If you are choosing between the

latter two, use the Panasonic if you

have controlled ambient lighting. Got

to leave some lights up? Go with the

Pioneer. Neither panel had signifi-

cant motion artifacts on either DVD

or HDTV source material, and they

produce beautiful saturated colors.

When it came to color fidelity and

color shading, it was a toss-up be-

tween the Panasonic’s rich blacks and

the new deep-pixel phosphors on the

Pioneer.

If anything, the expanded grayscale

of the TH-50PHD3U gave it the edge;

its average black levels were half that

of the Pioneer.

CSI’s Deuce Pro scaler supports

three of the plasma resolutions en-

countered in this review: 852x480

Wide VGA, 1280x768 Wide XGA, and

1365x768 Wide XGA. In all cases, the

Deuce Pro (fed with component YCbCr

480i from DVDs) made an improve-

ment — often subtle (with the Pioneer

and Panasonic panels) and more often

substantial (with the Sampo panel). It

cleaned up a lot of the motion artifacts

and presented an overall crisper pic-

ture on the PDS-4229, too. If video

quality is critical, an outboard scaler

is an excellent idea.

Conclusions

There were lots of surprises this

year, but no clear winner as I had last

year with Panasonic’s TH-42PWD3.

Fujitsu gets a tip of the hat for

turning out a great-looking panel at

an even lower price than the previous

price leader, the PFM-42B1. This is

sure to result in more price-slashing

among all the 42in. panel manufac-

turers. Sampo needs to get a second-

generation panel out there soon.

Panasonic has almost done it again

with the TH-50PHD3U, although

some false contours reduced its final

scores. Pioneer’s new PDP-503CMX

could prove to be almost as systems

integrator-friendly as the PFM-42B1

— a panel that never met a sync for-

mat it didn’t like. Both 50in. panels

will bring you great-looking images in

any type of installation.

As for the 61MP1, you have to see

this panel to believe it. While not the

winner in any category except the ob-

vious — size — it’s more than just a

big-screen novelty. This panel deliv-

ers the goods, and if NEC can make

more tweaks to the black levels and

video scaling performance, it will be

tough to beat.

Model Brightness Contrast Grayscale RGB Video Artifacts White Connectivity Operation TOTAL

scaling quality balance

Fujitsu PDS-4229 7 898 97108 8 74

Sampo PME-42V3 8 854 6358 5 52

Sony PFM-42B1 7 876 761010 8 69

Panasonic 8 109 9 109 1010 9 84

TH-50PHD3U

Pioneer 9 7 109 10101010 8 83

PDP-503CMX

NEC PS-61MP1 7 678 861010 9 71

Overall scores

1 2 3 4 5

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