Alignments - Philips 19PFL4322 Service Manual

8. Alignments

Index of this chapter:
8.1 Electrical Instructions
8.2 ISP Instructions
8.3 Serial Number Definition
Notes: You could adjust the LCD/TV following this chapter when
the LCD/TV has the below defect.
1. Change panel. 2. Change or repair main board.
3. LCD/TV color is not right. 4. The settings are disabled.
8.1 Electrical Instructions
8.1.1 TV Mode display adjust
8.1.1.1 White balance adjustment
General set-up:
Equipment Requirements: Color analyzer.
Input requirements:
Input Signal Type
Set to PAL M/N system, frequency=184.25MHz with
white pattern of 100%
Input Signal Strength : 10mV (80 dBuV) terminal voltage.
Input Injection Point : TV Tuner input
8.1.1.2 Color Temp Alignment
Apply full white pattern, select smart setting to be PERSONAL
(Brightness 50, Contrast 50, and Color 50). Adjusting SCALER
GAIN R G B to reach W/D and luminance in factory mode as
below.
Select Color Temp in the factory Mode OSD.The 1931
CIE chromaticity (X, Y) co-ordinates shall be:
Color Temp
0.314 ± 0.005 0.324 ± 0.005
Normal / 6500K
0.326 ± 0.005 0.336 ± 0.005
Warm / 5800K
0.291 ± 0.005 0.302 ± 0.005
Cool / 8500K
If you have not CA-110,the following R,G and B values are
for your reference
Normal
R 115
G 116
B 106
Luminance > 230 cd/m
picture at contrast 100% and brightness 100%.
8.1.1.3 This group settings about color temp are also applied
automatically into CVI/AV1/AV2(Side)/PC/DVI. That means
TV/CVI/AV1/AV2(Side)/PC/DVI are used the same setting.
8.1.2 PC mode Display Adjustment
8.1.2.1 AUTO Color adjustment
Set Brightness 100 and Contrast 50 and apply
1024x768@60Hz mode with 50 Black and 50 White pattern
at the factory mode
Activate AUTO-COLOR function for auto ADC offset and gain
setup.
8. Alignments
: RF signal
x y
Warm Cool
118 105
116 108
102 111
2
in the center of the screen when Smart
Figure 1. 50-Black 50-White
Measurement/viewing selector Measurement/viewing selector
Color Temp alignment is automatically set during TV alignment.
Color Temp x
0.314 ±0.005
Normal / 6500K
If you have not CA-110,the following R,G and B values are
for your reference
R
Normal 115
8.1.2.2 Display quality adjustment
Use timing mode as described in 2.2, and uses the
POPO (pixel on pixel off) pattern to adjust the clock until no
stripe and adjust the phase until clear picture.
(AUTO ADJUST hot key: press Volume and Volume + keys
together for 1 second.)
Check all preset 7 modes
8.1.2.3 Check the analog interface cable
Check the color poor & noise condition of 64 gray scale
pattern.
8.1.3 Comp video Mode display adjust
8.1.3.1 Auto Color Adjustment
General set-up:
Equipment : Quantum Data Pattern Generator
801GD or 802G or 802R;
Apply 576i, and the pattern STMPEbar shown in figure 2.
Figure 2. SMTPEbar
Alignment method:
Initial Set-up : Set Smart picture as "Persona" (Brightness=50,
Contrast=50, Color=50);
Access to factory OSD first, then to enable AUTO-COLOR to
get HD ADC OFFSET and HD ADC GAIN. Check 32 gray scales
can be distinguishable.
8.1.3.2 Color Temp alignment is automatically set during TV alignment
TPS 1.0L LA
Clear image Clear image
y
0.324 ±0.005
G B
116 106
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