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6. Alignments
Index of this chapter:
6.1 General Alignment Conditions
6.2 Hardware Alignments
6.3 Software Alignments
6.4 Option Settings
6.5 Reset of Repaired SSB
6.1
General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•
Power supply voltage: 90 - 264 V
•
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 (e.g. measure audio signals in relation to
AUDIO_GND).
Caution: It is not allowed to use heat sinks as ground.
•
Test probe: R
> 10 MW, C
i
•
Use an isolated trimmer/screwdriver to perform
alignments.
6.2
Hardware Alignments
Not applicable.
6.3
Software Alignments
Put the set in SAM mode (see Chapter
Codes, and Fault
Finding). The SAM menu will now appear on
the screen. Select RGB Align and go to one of the sub menus.
The alignments are explained below.
The following items can be aligned:
•
White point.
To store the data:
•
Press OK on the RC before the cursor is moved to the
left.
•
Select "Store" and press OK on the RC.
•
Switch the set to stand-by mode.
For the next alignments, supply the following test signals via a
video generator to the RF input:
•
EU/AP-PAL models: a PAL B/G TV-signal with a signal
strength of at least 1 mV and a frequency of 475.25 MHz
•
US/AP-NTSC models: an NTSC M/N TV-signal with a
signal strength of at least 1 mV and a frequency of
61.25 MHz (channel 3).
•
LATAM models: an NTSC M TV-signal with a signal
strength of at least 1 mV and a frequency of
61.25 MHz (channel 3).
6.3.1
RGB Alignment
Before alignment, set the picture as follows:
Picture Setting
Dynamic backlight
Dynamic Contrast
Color Enhancement
Picture Format
Light Sensor
Brightness
Color
Contrast
White Tone Alignment:
•
Activate SAM.
•
Select "RGB Align." and choose a color temperature.
•
Use a 100% white screen as input signal and set the
following values:
–
"Red BL Offset" and "Green BL Offset" to "7" (if
present).
–
All "White point" values initial to "128".
, 50/ 60 ± 3 Hz.
AC
< 20 pF.
i
5. Service Modes, Error
Off
Off
Off
Unscaled
Off
50
0
100
Alignments
In case you have a colour analyser:
•
Measure with a calibrated (phosphor- independent) color
analyser (e.g. Minolta CA-210) in the centre of the screen.
Consequently, the measurement needs to be done in a
dark environment.
•
Adjust the correct x, y coordinates (while holding one of the
White point registers R, G or B on max. value) by means of
decreasing the value of one or two other white points to the
correct x, y coordinates (see Table
values). Tolerance: dx: ± 0.003, dy: ± 0.003.
•
Repeat this step for the other colour Temperatures that
need to be aligned.
•
When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
Table 6-1 White D alignment values
Value
Cool (11000 K)
x
0.276
y
0.282
If you do not have a colour analyser, you can use the default
values. This is the next best solution. The default values are
average values coming from production (statistics).
6.3.2
Display Adjustment
You can use the default values. The default values are average
values coming from production.
•
Enter SAM mode.
•
Select a colour temperature (e.g. COOL, NORMAL, or
WARM).
•
Set the RED, GREEN and BLUE default values according
to the values in
•
When finished press OK on the RC, then press STORE to
store the aligned values to the NVM.
•
Restore the initial picture settings after the alignments.
Table 6-2 White tone default settings
Picture mode
Normal (9000K)
Cool (11000K)
Warm (6500K)
This group setting of colour temperature will be applied
automatically to the TV / VGA / HDMI / AV sources.
6.4
Option Settings
6.4.1
Introduction
The microprocessor communicates with a large number of I
ICs in the set. To ensure good communication and to make
digital diagnosis possible, the microprocessor has to know
back to
div.table
TPM15.5L LA
6.
6-1 White D alignment
Normal (9000 K)
Warm (6500 K)
0.287
0.296
back to div.table
6-2.
Colour temperature
Screen size
Red
Green
32PHG4900/78 128
97
32PHG5000/78 128
125
40PFG5000/78 128
128
43PFG5000/78 128
122
48PFG5000/78 128
123
32PHG4900/78 128
120
32PHG5000/78 123
128
40PFG5000/78 114
128
43PFG5000/78 115
102
48PFG5000/78 108
109
32PHG4900/78 124
124
32PHG5000/78 123
105
40PFG5000/78 128
118
43PFG5000/78 124
111
48PFG5000/78 128
109
EN 23
0.313
0.329
Blue
50
102
113
98
128
111
118
126
90
128
128
59
74
80
79
2
C
2015-Aug-08
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