Setting up and LCD.

On Thu, 12 Dec 2013 20:41:20 +0000, Andy Burns
wrote:

198kHz wrote:

On 12/12/2013 09:35, Dave Plowman (News) wrote:

Can anyone give an idiots guide to setting up an LCD properly? One with
adjustable back lighting. It was so much easier with a CRT...

I've found this DVD to be very useful...

http://www.testpatterns.co.uk/

Or for us cheapskates ...

http://merifon.altervista.org/TestDVD.html

Have used and found the latter very useful. Interestingly the blurb
states:

'Be aware that TestDVD is intended for calibration of the DVD’s
vision only, not for other sources i.e. videogames or television
broadcasts!!!

Luma Chroma menu: Y digital levels range 0-255

In a system able to display “below 16� levels, rising the brightness
control should make visible “BTB passed� over the background. Nice to
know, since in normal dvd’s no signal below Y level 16 is present! '

GrahamC

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"Dave Plowman (News)" wrote in message
...
Can anyone give an idiots guide to setting up an LCD properly? One with
adjustable back lighting. It was so much easier with a CRT...

IIRC back in the seventies BBC2 used to run about a half hour program on how
to set up a colour [CRT] TV properly - divergence, focus, width, height,
position, trapezoid, barrel, pin cushion, tilt, colour balance, contrast,
brightness etc. etc.

I am sitting in front of an Iiyama Vision Master Pro based on a Sony
Trinitron tube.- this was probably as good as CRT's got and even fully set
up there are still slight aberations in the corners.

OTOH LCD's have every pixel in the right place.


--
*If you can't see my mirrors, I'm doing my hair*

Dave Plowman London SW
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On Fri, 13 Dec 2013 23:16:19 -0000, R. Mark Clayton
wrote:

IIRC back in the seventies BBC2 used to run about a half hour program on how
to set up a colour [CRT] TV properly - divergence,

Er, convergence. Divergence was automatic.

focus, width, height,
position, trapezoid, barrel, pin cushion, tilt, colour balance, contrast,
brightness etc. etc.

And saturation, vertical hold, horizontal hold, parallelogram.

It's interesting that no-one has really given an answer to my question,
although thanks to Peter for the settings on his one.

It's a Samsung 50" - UE50F6200.

There are several preset picture modes and all of them might be ok for
watching it outside in direct sunlight - but all WOT for normal evening
viewing indoors.

Pulling everything down to something closer to acceptable still leaves
fleshtones lacking in detail - almost as if most had got one colour makeup
plastered on. And on something like the weather forecast with a fixed shot
but varying backgrounds, the detail in the face changes with them.

My own set is a getting on a bit DLP rear projector - and although nothing
like perfect doesn't show this sort of artifact. Nor does the only other
LCD TV I can compare it to - an also quite old Humax 24".

It's rather like there was some form of auto picture control going on. The
handbook supplied with it is a bad joke. It has got an E-Manual which I've
not ploughed my way through yet.

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Dave Plowman London SW
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In article ,
Martin wrote:
On Sat, 14 Dec 2013 12:11:28 +0000 (GMT), "Dave Plowman (News)"
wrote:

It's interesting that no-one has really given an answer to my question,
although thanks to Peter for the settings on his one.

It's a Samsung 50" - UE50F6200.

There are several preset picture modes and all of them might be ok for
watching it outside in direct sunlight - but all WOT for normal evening
viewing indoors.

Pulling everything down to something closer to acceptable still leaves
fleshtones lacking in detail - almost as if most had got one colour
makeup plastered on.

I noticed the same thing on both my son's and my daughter's Samsung 42"
TVs.

Right - but not other similar LCDs? Any suggestions as to which similar
sized one to swap it for?

Or a suggestion of a retailer in the London area who would actually allow
you to have a fiddle before buying?

--
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Dave Plowman London SW
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Graham C wrote:
On Thu, 12 Dec 2013 20:41:20 +0000, Andy Burns
wrote:

198kHz wrote:

On 12/12/2013 09:35, Dave Plowman (News) wrote:

Can anyone give an idiots guide to setting up an LCD properly?
One with adjustable back lighting. It was so much easier with a
CRT...

I've found this DVD to be very useful...

http://www.testpatterns.co.uk/

Or for us cheapskates ...

http://merifon.altervista.org/TestDVD.html

Have used and found the latter very useful. Interestingly the blurb
states:

'Be aware that TestDVD is intended for calibration of the DVD’s
vision only, not for other sources i.e. videogames or television
broadcasts!!!

Luma Chroma menu: Y digital levels range 0-255

In a system able to display “below 16� levels, rising the brightness
control should make visible “BTB passed� over the background. Nice
to know, since in normal dvd’s no signal below Y level 16 is present!
'

Well I know what you mean - but just to be pedantic dvds/broadcast do
have a small percentage of samples that are over/under - these of course
normally get clamped to 16/235 or 240 (chroma) by something somewhere.

For some HD patterns to test computer - TV setups (including another
full range ramp) there are some here -

http://www.w6rz.net/

though IIRC at least one of the interlaced motion tests has the wrong
field order coded into it.

Dave Plowman (News) wrote:

Pulling everything down to something closer to acceptable still leaves
fleshtones lacking in detail - almost as if most had got one colour
makeup plastered on

How very interesting. My Mum bought a Samsung (about a year ago, I
think, and I can't remember the model) and that is just the same. I
fiddled with it for ages, but it seems impossible to get a realistic
skin tone on faces, and they seem to lose subtle detail like creases
and pores. It is indeed as if they've got a thick layer of slap on
them. It's also rather like that effect you get when the colours are
over-saturated, but that definitely isn't the case on this Samsung.

My Sony doesn't suffer that at all, so I can only wonder if it is
something in Samsung's proprietary picture processing algorithms. What
a ****er that none of the road tests mention it.

--
SteveT

Dave Plowman (News) wrote:
It's interesting that no-one has really given an answer to my question,
although thanks to Peter for the settings on his one.

It's a Samsung 50" - UE50F6200.

There are several preset picture modes and all of them might be ok for
watching it outside in direct sunlight - but all WOT for normal evening
viewing indoors.

Pulling everything down to something closer to acceptable still leaves
fleshtones lacking in detail - almost as if most had got one colour makeup
plastered on. And on something like the weather forecast with a fixed shot
but varying backgrounds, the detail in the face changes with them.

Maybe not your precise model, but there are threads around covering this -

http://www.avforums.com/threads/sams...1656351/page-3

In article ,
Andy Furniss wrote:
Maybe not your precise model, but there are threads around covering this -

http://www.avforums.com/threads/sams...1656351/page-3

Thanks - quite useful. Discovered what the main problem was - something
called auto contrast. Hidden away in an additional menu. Now off.

--
*Pentium wise, pen and paper foolish *

Dave Plowman London SW
To e-mail, change noise into sound.