TV Calibration - reddish contrast?
Discussion
Hi,
After reading a few news articles recently about how people never setup their TV's at home properly and just unbox it i thought i'd take some time i set mine up as it should be seeing as it's an expensive set.
I went through configuration/calibration instruction set but i was finding when setting the contract the colour was going reddish when the instructions said to make sure this didn't happen.
To take it back to grey i had to take the contract right down to 10/11 which made the whole image very very dark, anything over and it went reddish again.
The contrast is now set at 60 which makes the picture look great, but leave's me feeling it's still not setup right.
Also, on a red/green/blue screen with flashing bars i was not able to get the bars to align properly, although i believe this is a case of adjusting the RGB settings in the engineers menu?
Any tips/advice on getting it better setup?
It's a Philips 58PFL9955H if it helps!
After reading a few news articles recently about how people never setup their TV's at home properly and just unbox it i thought i'd take some time i set mine up as it should be seeing as it's an expensive set.
I went through configuration/calibration instruction set but i was finding when setting the contract the colour was going reddish when the instructions said to make sure this didn't happen.
To take it back to grey i had to take the contract right down to 10/11 which made the whole image very very dark, anything over and it went reddish again.
The contrast is now set at 60 which makes the picture look great, but leave's me feeling it's still not setup right.
Also, on a red/green/blue screen with flashing bars i was not able to get the bars to align properly, although i believe this is a case of adjusting the RGB settings in the engineers menu?
Any tips/advice on getting it better setup?
It's a Philips 58PFL9955H if it helps!
What test patterns are you using to adjust this set? If it's a Plasma screen you should use windowed patterns not full screen otherwise there is a limiter in plasmas that will effect the result and give strange effects.
It sounds like you are running out of red at higher light outputs but if I understand you correctly you have to turn contrast down to 10 out of 100? This does sound odd.
Something else to check is the colour temperature setting. If there is a 'warm' setting typically this will be closest to 6500K (the usual target), but checking on AVforum's picture perfect section might help confirm it if they list your model.
EDIT: Please don't go into the service menu if you don't know what you are doing. It is possible to really mess up your TV in some cases for example by starting an in built calibration routine without the correct test pattern playing. You can't adjust the RGB balance by eye anyway, so not worth even trying. You can buy decent sensors thesedays and use free software, but the learning curve is steep and it can become an end to itself (I know, but I've reigned it in more thesedays and only bought a new sensor so I can do a special 'automatic' calibration using my video processor and (paid for) software).
It sounds like you are running out of red at higher light outputs but if I understand you correctly you have to turn contrast down to 10 out of 100? This does sound odd.
Something else to check is the colour temperature setting. If there is a 'warm' setting typically this will be closest to 6500K (the usual target), but checking on AVforum's picture perfect section might help confirm it if they list your model.
EDIT: Please don't go into the service menu if you don't know what you are doing. It is possible to really mess up your TV in some cases for example by starting an in built calibration routine without the correct test pattern playing. You can't adjust the RGB balance by eye anyway, so not worth even trying. You can buy decent sensors thesedays and use free software, but the learning curve is steep and it can become an end to itself (I know, but I've reigned it in more thesedays and only bought a new sensor so I can do a special 'automatic' calibration using my video processor and (paid for) software).
Edited by OldSkoolRS on Wednesday 17th October 22:17
stuarthat said:
if you go onto avforum there is a picture perfect link on it simply follow the instrucions, i learn some interesting things.
FlossyThePig on new Viera TV seems very dark thread said:
Get thee to AV Forums PicturePerfect and learn how to set up your TV.
Thanks Guy's.
I tried this one but ended up with the same result again.
For reference this is the setup guide i used the first time: http://lifehacker.com/5858625/how-to-calibrate-you... along with the AVS software they recommend.
Here are a couple of snaps if it helps...
Contrast set to 66:
Contrast set to 10:
Then, turn the contrast up by 2, to 12 and it goes back to red :S
I tried this one but ended up with the same result again.
For reference this is the setup guide i used the first time: http://lifehacker.com/5858625/how-to-calibrate-you... along with the AVS software they recommend.
Here are a couple of snaps if it helps...
Contrast set to 66:
Contrast set to 10:
Then, turn the contrast up by 2, to 12 and it goes back to red :S
That is a full screen of white, so I wonder if the limiter is having an effect? You might need a different test pattern with less white in it, though not sure what you could use as I don't own a plasma myself so haven't had this issue (DILA projector and LCD TVs). I'm away at the moment with work, but I'll have a look through my test pattern discs to see if there is something more suitable.
The other option might be to try a different mode as this may give you a different colour temperature. I wouldn't attempt to adjust the colour temp yourself by eye, but selecting different modes might just prove the theory that it could just be the whitebalance at higher IREs that is out and/or clipping.
The other option might be to try a different mode as this may give you a different colour temperature. I wouldn't attempt to adjust the colour temp yourself by eye, but selecting different modes might just prove the theory that it could just be the whitebalance at higher IREs that is out and/or clipping.
OldSkoolRS said:
That is a full screen of white, so I wonder if the limiter is having an effect? You might need a different test pattern with less white in it, though not sure what you could use as I don't own a plasma myself so haven't had this issue (DILA projector and LCD TVs). I'm away at the moment with work, but I'll have a look through my test pattern discs to see if there is something more suitable.
The other option might be to try a different mode as this may give you a different colour temperature. I wouldn't attempt to adjust the colour temp yourself by eye, but selecting different modes might just prove the theory that it could just be the whitebalance at higher IREs that is out and/or clipping.
I should point out this is an LCD not a plasma.The other option might be to try a different mode as this may give you a different colour temperature. I wouldn't attempt to adjust the colour temp yourself by eye, but selecting different modes might just prove the theory that it could just be the whitebalance at higher IREs that is out and/or clipping.
If you do have any alternate paterns that may be better i'd be happy to try them out.
As the TV is still in warranty i've also logged a support call with Philips now so they can look into the issue.
Given it's extortionate RRP (£4k!) i'd not really expect the TV to have balance issues etc. It's a top spec and reviewed TV.
I'll have a look when I get home tomorrow. Price is no indication of not having any issues: A couple of years ago JVC launched a range of projectors with various issues, one being a faulty CMS (a circuit that performs colour correction) that was only available on the dearer model which was about £7K. On top of this they had issues with lamps that dimmed early (ie 4-500 hours instead of 2000) on that and the cheaper £3k and also dearer still (£10K) models. 
I can get a similar effect on my Sony TV (LCD) but I have a calibration sensor so I can correct the whitebalance at higher levels to give a correct 6500K colour temperature.
Out of interest as it is LCD, is there a separate back light control? If so is this set low? If so you could set your contrast to 10 and raise the backlight (though TBH it still doesn't sound right to me).
I can get a similar effect on my Sony TV (LCD) but I have a calibration sensor so I can correct the whitebalance at higher levels to give a correct 6500K colour temperature.
Out of interest as it is LCD, is there a separate back light control? If so is this set low? If so you could set your contrast to 10 and raise the backlight (though TBH it still doesn't sound right to me).
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