Philips 32PF9968/10 Service Manual page 48
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EN 48
8.
TPM1.2HU LA
8.3
Software Alignments
8.3.1
YPbPr mode display adjustment
White balance adjustment
General set-up:
Equipment Requirement: Minolta CA-110 or Equivalent Color
analyzer, Quantum Data Pattern Generator 802G, 802BT or
equivalent instrument.
Input requirements:
Input Signal Type: YPbPr signal
•
720P mode, TVBar100 pattern by 802G or 802BT.
•
Select Smart picture to Personal mode and check the x, y
data.
Input Signal Strength: 1 V
signal.
Input Injection Point: AV1 YPbPr (RAC jack).
Figure 8-1 720P, TVBar100 pattern
Alignment method:
Initial Set-up:
•
Select source as "AV1".
•
Set Smart picture as "Personal" and to be Contrast =50,
Brightness=50, at normal menu mode.
•
Apply "TVBar100 pattern with black & white" pattern by
signal generator.
•
Enter factory mode menu: Numeric keys "062596" +
INFO+MENU key (FAC mode menu). Then select
"Factory" item.
Alignment:
•
At FAC mode menu, select AUTO_COLOR item. Then
press "OK" key to adjust ADC_GAIN_R, ADC_GAIN_G,
ADC_GAIN_B and ADC_OFFSET_R, ADC_OFFSET_G,
ADC_OFFSET_B. Then store those values to NVM.
•
Apply Flat_73 pattern or 75IRE pattern.
•
Set color temperature to "NORMAL".
•
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. (R/G/B gain value <= 170).
•
Set color temperature to "WARM".
•
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. (R/G/B gain value <= 170).
•
Set color temperature to "COOL".
•
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
Alignments
for Y signal; 700 mV
for Pb & Pr
pp
pp
and CLR_TEMP_B values. Then store those values to
NVM. (R/G/B gain value <= 170).
Table 8-1 Color temperature Normal/Warm/Cool (x, y) co-
ordinates specification
Value
Cool (11000 K)
Normal (9000 K)
x
0.278±0.010
0.289±0.010
y
0.278±0.010
0.291±0.010
If you do not have a color analyzer, you can use the default
values.
Table 8-2 Color temperature Normal/Warm/Cool (R,G,B)
co-ordinates specification
Colour Temp.
R
Cool
160
Normal
170
Warm
170
Check Grayscale
Check the 32 grayscale pattern should be distinguished and
color bar is correct.
Note:
•
Use Minolta CA-110 for color coordinates and luminance
check.
•
Luminance > 400 cd/m2 in the center of the screen when
CLR TEMP R, CLR TEMP G, CLR TEMP B set to 128 and
Brightness control at 100; Contrast control at 100.
•
Reset AV setting, smart picture shall be recalled to be
"Sport".
Warm (6500 K)
0.314±0.010
0.319±0.010
G
B
150
170
150
150
130
100
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