Samsung LE32R51B calibration issue - AVS Forum
Forum Jump: 
 
Thread Tools
post #1 of 2 Old 10-02-2013, 08:40 AM - Thread Starter
Newbie
 
ffxx68's Avatar
 
Join Date: Oct 2013
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10

Hi,

 

my LCD TV is still a good one (though pretty old now - it's almost 10 years), but it has always been affected by an annoying issue which I'd call "over-saturation" of brightness. I mean, the higher brightness areas of the pictures have very little, or no shadow details at all.

 

I'm playing around with the white balance service menu (e.g. http://www.scribd.com/doc/35337569/23/White-Balance-Calibration), with little success.

 

I'm trying to do the calibration using a picture with 16 gray level bars, a jpeg image shown by a DVB-T set-top-box image browser and sent to TV through the SCART input. The three brightest bars and the two darkest ones can't distinguished. Other than that, white balance is ok (i.e. no artifact colors can be seen).

 

Executing the "AV Calibration", as suggested in paragraph 4.3.1, I can see the picture brightness continuously changing from full brightness (total white) to complete black and then back to brightest. During these cycles I can clearly see several levels which are optimal and would like to fix them. Issue is that this bright-to-dark cycle never ends. I haven't found a way to stop it, except returning to main service menu, which doesn't fix the calibration levels and returns to the original, bad ones.

 

When I try changeìing manually the sub-brightness and sub-contrast (see 4.3.2), though some values can make the second black bar appear, I can't find any value to make the lighther ones to show up.

 

Although the 4.3.2 calibration cycle clearly shows there must be some parameter that can be tuned to fix the problem, even going over the other menu items (e.g. see 4.2.2 - Menu 4 SVP-EX - Picture Gain Adjust) I haven't find any that actually change significantly that white calibration.

Any suggestion / idea / docs?

 

thanks
Fabio

ffxx68 is offline  
Sponsored Links
Advertisement
 
post #2 of 2 Old 10-02-2013, 09:23 AM - Thread Starter
Newbie
 
ffxx68's Avatar
 
Join Date: Oct 2013
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10

realized later - probably to move over the "display calibration" forum?

ffxx68 is offline  
Reply Flat Panels General and OLED Technology

Tags
Samsung

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off