Alignments - Philips 20HFL2809D/12 Service Manual

6. Alignments

Index of this chapter:
6.1 General Alignment Conditions
6.2 Hardware Alignments
6.3 Software Alignments
6.4 White Point Alignments
General Alignment Conditions
6.1
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 M, C
i
Hardware Alignments
6.2
Not applicable.
Software Alignments
6.3
Not applicable.
White Point Alignments
6.4
Steps for white point alignment are listed below
• Run the PC
• Connect the USB cable of DB07 board.
• Run the video pattern generator, adjust %80 white pattern.
• Run the color Analyzer CA210, make the CAL the probe.
Calibration steps
• Select the CAL position on the probe.
• Press button 0-CAL.
• Wait 5 seconds.
• Select MEAS position on the probe.
• Wait a minimum of 15 mins, avg. time is 45 mins.
• Connect the scart cable to TV.
Value
X
0.274+/-(0.008)
Y
0.280+/-(0.008)
If you don't have a colour analyser, you can use the default
values. This is the next best solution.
, 50/ 60  3 Hz.
AC
< 20 pF.
i
COOL NORMAL
0.287+/-(0.008)
0.295+/-(0.008)
Alignments
VEM14.1E_LA
• Place the probe across the display (center position, 0.5 cm
at 90 degrees.
• Check the PC, select the COM port.
• Select the model type OEM.dat.
• Press the START button.
• Wait for the software to set all modes (normal, cool, warm)
• Wait for the OK-READY sign.
If you don't have a colour analyser, you can use the default
values. This is the next best solution.
White Point Alignments
6.5
If you don't have a colour analyser, you can use the default
values. This is the next best solution.
• Run the PC
• Connect the USB cable of DB07 board.
• Run the video pattern generator, adjust %80 white pattern.
• Run the color Analyzer CA210, make the CAL the probe.
Calibration steps
• Select the CAL position on the probe.
• Press button 0-CAL.
• Wait 5 seconds.
• Select MEAS position on the probe.
• Wait a minimum of 15 mins, avg. time is 45 mins.
• Connect the scart cable to TV.
• Place the probe across the display (center position, 0.5 cm
at 90 degrees.
• Check the PC, select the COM port.
• Select the model type OEM.dat.
• Press the START button.
• Wait for the software to set all modes (normal, cool, warm)
• Wait for the OK-READY sign.
Table 6-1 Default White Point Alignment Values
WARM
0.313+/-(0.008)
0.329+/-(0.008)
back to
div. table
6. EN 19
2014-Apr-09