Alignments
6.
6.
Alignments
Index of this chapter:
6.1 General Alignment Conditions
6.2 Hardware Alignments
6.3 YPbPr Mode display adjustment
6.4 PC mode display adjustment
6.5 Option Settings
6.6 Serial Number Definition
Note:
The Service Alignment Mode (SAM) are described in
chapter
5. Service Modes, Error Codes, and Fault Finding
.
Menu navigation is done with the CURSOR UP, DOWN, LEFT
or RIGHT keys of the remote control transmitter.
6.1
General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•
Power supply voltage: 195 - 264 V
AC
, 50/ 60 ± 3 Hz.
•
Connect the set to the mains via an isolation transformer
with low internal resistance.
•
Allow the set to warm up for approximately 15 minutes.
•
Measure voltages and waveforms in relation to correct
ground.
Caution:
It is not allowed to use heatsinks as ground.
•
Test probe: R
i
> 10 M
Ω
, C
i
< 20 pF.
•
Use an isolated trimmer/screwdriver to perform
alignments.
6.2
Hardware Alignments
Not applicable.
6.3
YPbPr Mode display adjustment
6.3.1
General set-up
Equipment Requirements:
Minolta CS-200 or equivalent Colour analyser, Quantum Data
Pattern Generator 802G, 802BT or equivalent instrument.
Input requirements:
Input Signal Type: YPbPr signal
•
1080i mode, TVBar100 pattern by 802G or 802BT.
•
Select Picture mode to User mode and check the x, y data.
Input Signal Strength:
1 V
pp
for Y signal; 700 mV
pp
for Pb & Pr signal
Input Injection Point:
YPbPr (RAC jack)
6.3.2
Alignment method
Quantum Data Pattern Generator 802G or 802BT. Apply 1080i,
and the pattern TVBAR100 with a Quantum colour analyser.
Initial Set-up:
1.
Select source as “EXT2”.
2.
Set Smart Picture mode as “Standard” and off the
“Dynamic contrast/Dynamic backlight”.
3.
Apply “TVBar100” pattern with colour bar pattern by signal
generator.
4.
Enter factory mode menu: press numeric keys
“062596”
+
INFO key (FAC mode menu).
Alignment:
1.
At SAM 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.
2.
Apply 100% white pattern.
3.
Set colour temperature to “NORMAL”.
4.
At FAC mode menu, adjust the CLR TEMP R, CLR TEMP
G, CLR TEMP B values to meet “NORMAL” colour
coordinates specification below. Then store those values to
NVM (R/G/B gain value <= 128).
5.
Set colour temperature to “COOL”.
6.
At FAC mode menu, adjust the CLR TEMP R, CLR TEMP
G, CLR TEMP B values to meet “COOL” colour
coordinates specification below. Then store those values to
NVM (R/G/B gain value <= 128).
7.
Set colour temperature to “WARM”.
8.
At FAC mode menu, adjust the CLR TEMP R, CLR TEMP
G, CLR TEMP B values to meet “WARM” colour
coordinates specification below. Then store those values to
NVM (R/G/B gain value <= 128).
Colour temperature Normal/Warm/Cool (x, y) co-ordinates
specification:
Table 6-1 Reading with Minolta CS-200
If you have not such equipment, the below value is for your
reference.
Table 6-2 Reference value
Note:
•
Check Luminance:
Use Minolta CS-200 or Equivalent Colour analyser for
colour coordinates and luminance check. Then Set CS-200
receiver at the centre of the screen.
when Brightness/ Contrast / Video Contrast setting at 100
and CLR_TEMP_R / CLR_TEMP_G / CLR_TEMP_B =
128. The Luminance need arrive at
(1) 19PFL3405H or 22PFL3405H Luminance > 240 cd/m
2
.
(2) 26PFL3405H Luminance > 320 cd/m
2
.
•
equivalent Colour analyser need to calibration with Minolta
CS-200.
Picture Mode
x
y
Normal (9000K)
0.287
±
0.003
0.296
±
0.003
Cool (11000K)
0.276
±
0.003
0.282
±
0.003
Warm (6500K)
0.313
±
0.003
0.329
±
0.003
Picture Mode
Size
Colour temperature
Red
Green
Blue
Normal (9000K) 19"
128
128
107
22"
116
128
111
26"
126
128
100
Cool (11000K)
19"
119
128
116
22"
105
128
124
26"
111
128
120
Warm (6500K)
19"
128
116
70
22"
128
128
80
26"
128
109
56
