Would appreciate if you could check. I had problems with the gamma. Ranged from 1.3 - 2.2. The worst offender was 90% gray, it was at 1.3. The low end was pretty good at 2.0-2.1.

The calibration thru the AC Ryan had a better gamma response from 1.9 - 2.2, averaging at 2.1 or something. Grayscale DE errors were less than 3 for 1976 DE. Colours were not so good but that is expected from Panny plasmas (DE1994 ranging from 1-6, worst offender being green).

Hi all.. I accessed the service menu to see the number of hours used on my new 42S10K and it shows that it has been started up 17 times and 58hours has been clock upon delivery. I deliberately asked the seller to give me a new unit. May I know if it's normal for a new unit to have already clocked for 58hours?

I've also inspected the whole TV and it looks new to me with all the plastic still covering it.

Lastly I must say thanks and sorry to bro HTKaki and Iamsobloodysick coz I asked them for quotes but in the end I didn't buy from them. Their prices are really competetive and I highly reccomend any1 here who wanna get this TV and stay in Peninsular to get from either of them. In the end I bought from a local dealer in Sabah because I didn't want to risk shipping a TV from West to East.

No it's not normal. It's been used...
See post by bro Kianwee. Mine was very low too when I checked...
http://forum.lowyat.net/topic/1038928/+155

This post has been edited by ronaldjoe: Jul 15 2009, 11:22 AM

I see... Thanks.... Sigh~ Gotta argue with the dealer again... Had to bargain for one week to even get a reasonable price.

X10 thread dead liao arr.

How about PV80 thread?

I had manage to nail the 2.2 gamma in Panny service menu. The trick is to use All-Drv and All-Cut to adjust the gamma curve. As you mention, low end is around 2.0-2.1. So you need to adjust All-Cut a little bit down to reduce the luminance. As for 90% grey around 1.3, that's mean your All-Drv is too high (Too high luminance for upper greyscale). Redo the greyscale again after you adjust the All-Cut and All Drv. Look at your gamma curve and look at the color that is either above or below the targeted gamma curve. For eg, for 30% grey, if red is above the gamma curve 2.2, then reduce red cut etc... I think you will get the idea. Below is the final adjustment I got (took me 2 hours to get this almost perfect curve and good greyscale).

Note: ATI pixel is set at YPbPr 4:4:4 which will enable me to see BTB and WTW.

Updated. Must be too tired yesterday and just found out adjusting All-Cut will also reduce the brightness control so black crush do occur. After adjusting the brightness control again using the pluge test pattern, gamma shoot back to around 1.9 to 2.0 again. Looks like this is final result I can get but nothing too serious as your problem where 90% gray at 1.3. I think you set the contrast too high which is why you get this result.

This post has been edited by pierreye: Jul 16 2009, 08:39 AM


Attached thumbnail(s)

Thanks for the charts. I believe one main difference is your contrast settings. I normally aim for a ftL of 34-37ftL on a 100% window. I believe your room is fully light controlled as you 100% window is at 13ftL. Yeah, I found that by reducing the overall contrast to around 20ftL I can get a better gamma. The AC Ryan media streamer I could get the 100% window at around 35ftL and still get a gamma of around 2.1.

Interesting.

bro kianwee...

after acces service menu for counter timer....the last step to go back to normal is press the on/off button at tv or remote? confuse bout this....

i press the on/off button on tv aand then da tv goes off...like that...

Just press the on/off button on the plasma will do.

As posted previously, my new TV was already operated for 58hrs when delivered to me. And according to bro ronaldjoe, this is not normal and the TV has been used.

Can any sifus here gimme advise if I should ask the dealer to change a brand new one to me coz the plasma TV needs about 200hrs of run in anyway before I could do any calibration. This means that the dealer helped me do a "free" (dunno whether if it's a good or bad thing) run-in of 58hrs already.

Thanks in advance.

if u consider the seller gave u free run-in, that's great..

to me, as long as the unit is perfect physically (i.e. no scratches etc) & working perfectly, it's acceptable... sometimes u can get brand new but faulty on inside also prob.

I would ask for a new set, it is wrong to sell a used unit and you deserve a virgin unit for the price you pay.

Here's another option. If you use catalyst ver 9.6, it'll do automatic expansion from video to pc level so you only need to calibrate at pc level. I use AVS HD test pattern in MP4 format and use MPC-HC with VMR9 output (XP). Manage to get 2.2 gamma with catalyst color control. Set the gamma to 0.85 for both desktop and 3D. 100% White is 25ftL. Can't stand 35ftL as it's too bright for me. This should be as perfect as it can be.




Attached thumbnail(s)

Bro,
I am using ATI 4:4:4 setting, MPC-HC with VMR9.
Can share the setting in ATI Catalyst with me?
Or only set Gamma 0.85 for both desktop and 3D?
Many thanks.

Ok will test out this option when I go back the superyaw's house. I do not have a HTPC with me to check it out. One thing to note is that the older PV80, PY800 definately does not exhibit a green push like the newer PS10. The PX10 also does not have this problem. I also used the MP4 AVSHD709 test patterns.

I normally target a 35ftL especially if the room is not light controlled. If the room is light controlled normally target 28 ftL and a gamma of 2.3-2.4.

The one thing that is apparent comparing the last gen Panny and this gen panny is that the black levels are better.

which one's black is better? the last gen or current gen?

this gen la.... he said it wat.

not sammy LED ar?

I only change the gamma to 0.85. The rest of the greyscale tuning is done through the service menu.

Thanks bro for update.