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EN 124
8.
FM23, FM24, FM33
ComPair), and a new "White Point" adjustment (see next
paragraph).
Note: The loaded software, performs the settings
automatically.
8.3.3
SCALER
Table 8-3 SAM Menu "SCAL."
Service Alignment Menu
Test pattern On / Off
Color temperature 6500K / 8700K / 10000K
White point Adjust ...
Align ADC Press OK to execute
Clear user settings Press OK to clear
TEST PATTERN
This function makes it possible to generate a "colour bar" test
pattern (generated by the PW Scaler IC). You can use this
picture, to check the video path, starting at the PW Scaler IC to
the plasma display.
COLOUR TEMPERATURE
Select the appropriate colour temperature for the alignments
(see also "White point" adjustment below).
WHITE POINT
Table 8-4 SAM Menu "SCALER - WHITE POINT"
Service Alignment Menu Scaler - White point
White point red <-------------|------------> 125
White point green <---------|----------------> 100
White point blue <-----------|--------------> 110
Press OK when done
Notes:
•
First align the ADC (see ALIGN ADC) before aligning the
WHITE POINT.
•
The alignment values should NOT exceed the value "128".
Method 1 (with colour analyser)
Supply, via an external VGA source (e.g. a VGA generator, or
a PC in 640x480 mode), a "White Drive" test pattern (ask your
NSO for the PC file). This picture consists of black picture (0
mV) with in the middle a 100% white (0.7 V) square with
dimensions 202x152.
1. Set "Brightness" to "50" and "Contrast" to "71" (via the
standard customer menu).
2. Go to the SAM menu.
3. Set COLOR TEMPERATURE to "8700 K" (with the
introduction of the high brightness H2 plasma panels, the
"NORMAL" colour temperature is adapted from "7600 K" to
"8700 K").
4. Measure with a CTV colour analyser (calibrated with the
spectra) on the centre of the white square on the screen.
5. Select WHITE POINT in the SAM SCALER menu, and
press CURSOR RIGHT.
6. Adjust with the CURSOR UP/DOWN or LEFT/RIGHT
command, the three WHITE POINTS RED, GREEN and
BLUE to "128" (do not go above this value!), and align with
one or two of the drivers to the correct coordinates (see
table).
7. Repeat the same measurement for respectively colour
temperature "6500 K" and "10000 K".
8. Repeat again if necessary.
Electrical Alignments
Scaler (Scal.)
Table 8-5 White Point XY-coordinates
Colour Temperature
x
6500 K (Cool)
313
8700 K (Normal)
289
10000 K (Warm)
280
Method 2 (without colour analyser)
Without having a CTV colour analyser, it is possible to directly
set some parameters, which are based on average values from
production.
Table 8-6 White point RGB-values 32-inch monitor
Col. Temp. 32"
R
6500 K (Cool)
114
8700 K (Normal)
119
10000 K (Warm)
125
Table 8-7 White point RGB-values 37-inch monitor
Col. Temp. 37"
R
6500 K (Cool)
112
8700 K (Normal)
117
10000 K (Warm)
119
Table 8-8 White point RGB-values 42-inch monitor
Col. Temp. 42"
R
6500 K (Cool)
116
8700 K (Normal)
119
10000 K (Warm)
127
ALIGN ADC
Supply, via an external VGA source (e.g. a PC, mode
640x480), the "ADC alignment" test pattern (ask your NSO for
the PC file).
The upper 360 lines of this picture consists of a half black and
half white picture with the following settings (on a full scale of
"255"):
•
Black "17" (47 mV).
•
White "255" (700 mV).
The lower 120 lines of this picture, are vertically divided into 4
boxes of 160 pixels each with (from left to right) the following
settings:
•
Black "0" (0 mV).
•
Black "5" (14 mV).
•
White "250" (686 mV).
•
White "255" (700 mV).
1. Go to the SAM menu.
2. Select ALIGN ADC in the SAM Scaler menu, and press
CURSOR RIGHT.
3. The alignment is performed automatically.
CLEAR USER SETTINGS
In some (rare) cases it is possible that the PW Scaler recalls
settings, which are made earlier by the user (e.g. "phase" or
"shift"), and not the last (wanted) settings. To correct this
problem, one can select this function.
y
329
299
289
G
B
125
128
128
128
128
115
G
B
128
127
128
124
128
111
G
B
126
128
128
125
127
112
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