Philips 26MD257B/37 Service Manual page 179

8.1.3.2 Check grayscale
Apply 32 gray pattern.
Check the color poor & noise condition of
8.1.4. HDMI mode display adjustment
8.1.4.1 White Balance adjustment (B)
General set-up :
Equipment Requirement: Minolta CA-110 or Equivalent Color analyzer
Input requirements:
Input Signal Type : HDMI signal
1. 1080i mode, full white pattern.
2. Select Smart picture to
Input Signal Strength : 4 channels TMDS signal
Input Injection Point : HDMI1 input.
Alignment method:
Initial Set-up:
Alignment:
Color temperature Normal/Warm/Cool (x, y) co-ordinates specification:
Picture Mode
Normal (8500
WARM (6500
COOL( 11500
8.1.5. DTV (ATSC) mode display adjustment
8.1.5.1 White Balance adjustment (B)
General set-up :
Equipment Requirement: Minolta CA-110 or Equivalent Color analyzer.
Input requirements:
Input Signal Type : RF signal
1.Set center frequency=69MHz, playing transport stream with white pattern.
2. Select Smart picture to
Input Signal Strength : 60 dBuV
Input Injection Point : RF input
Alignment method:
Initial Set-up:
1. Select source as
2. Set Smart picture as "Personal" and to be Contrast
3. Apply white pattern by ATSC997 signal generator.
4. Enter factory mode menu: press MENU + Numeric keys "062596" + MENU key
8. Alignments
32 gray pattern
Quantum Data Pattern Generator 802BT or 881
Personal
1. Select source as "HDMI1".
2. Set Smart picture as "Personal" and to be Contrast
Brightness=50 (LPL) , at normal menu mode.
3. Apply full white pattern by Quantum Data signal generator.
4. Enter factory mode menu: press MENU + Numeric keys "062596" + MENU key
mode menu). Then select "Factory" item.
1. Set color temperature to "NORMAL".
2. Copy CLR_TEMP_R, CLR_TEMP_G and CLR_TEMP_B values from "NORMAL"
color temperature in Analog TV mode. Check whether (x,y) color coordinates meet
"NORMAL" color specification below. If color coordinates are out of specification, fine-
tune CLR_TEMP_R, CLR_TEMP_G and CLR_TEMP_B values. Then store those
values to NVM.
3. Set color temperature to "WARM".
4. Copy CLR_TEMP_R, CLR_TEMP_G and CLR_TEMP_B values from "WARM"color
temperature in Analog TV mode. Check whether (x,y) color coordinates meet
"WARM" color specification below. If color coordinates are out of specification, fine-
tune CLR_TEMP_R, CLR_TEMP_G and CLR_TEMP_B values. Then store those
values to NVM.
5. Set color temperature to "COOL".
6. Copy CLR_TEMP_R, CLR_TEMP_G and CLR_TEMP_B values from "COOL" color
temperature in Analog TV mode. Check whether (x,y) color coordinates meet "COOL"
color specification below. If color coordinates are out of specification, fine-tune
CLR_TEMP_R, CLR_TEMP_G and CLR_TEMP_B values. Then store those values to
NVM.
o
K)
o
K)
o
K)
ATSC signal generator - Sencore ATSC997 or equivalent generator
Personal
"TV".
Brightness=50 (LPL) , at normal menu mode.
menu). Then select "Factory" item.
mode and check the x, y data.
=50 (LPL),
x
0.291± 0.010 0.302±
0.314± 0.010 0.324±
0.273± 0.010 0.280±
mode and check the x, y data.
=50 (LPL),
TPM1.0U LA
(FAC
y
0.010
0.010
0.010
(FAC mode
77