Table of Contents
Advertisement
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)
back to
div.table
QM16.4E 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
32PFH5501/88 119
120
32PFT5501/12
120
121
32PFS5501/12
119
119
32PFT5501/60
118
117
32PFS6401/12
119
120
32PFS6401/60
118
119
40PFH5501/88 106
113
40PFT5501/12
107
112
40PFS5501/12
105
113
40PFT5501/60
103
114
49PFH5501/88 100
95
49PFT5501/12
100
94
49PFS5501/12
98
95
49PFT5501/60
97
96
32PFH5501/88 119
102
32PFT5501/12
118
100
32PFS5501/12
119
102
32PFT5501/60
117
101
32PFS6401/12
101
93
32PFS6401/60
102
94
40PFH5501/88 106
113
40PFT5501/12
104
110
40PFS5501/12
102
111
40PFT5501/60
103
112
49PFH5501/88 117
100
49PFT5501/12
115
99
49PFS5501/12
119
100
49PFT5501/60
117
101
EN 27
0.313
0.329
Blue
117
117
118
116
118
117
101
102
101
102
120
120
119
118
125
126
125
124
127
126
101
97
100
101
92
100
100
102
2016-Apr-1
Advertisement
Table of Contents
