Alignments; General Alignment Conditions; Software Alignments; Display Adjustment - Philips 32PFH5300 Service Manual

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 TPM15.1E LA
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
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
32PFH5300/88 254 252
32PFK5300/12 255 253
32PFT5300/12 255 251
32PFT5300/60 250 253
40PFH5300/88 252 255
40PFK5300/12 255 252
40PFT5300/12 254 255
40PFT5300/60 253 251
50PFH5300/88 255 245
50PFK5300/12 255 245
50PFT5300/12 253 245
50PFT5300/60 252 243
32PFH5300/88 232 235
32PFK5300/12 235 237
32PFT5300/12 235 236
32PFT5300/60 233 237
40PFH5300/88 223 244
40PFK5300/12 221 243
40PFT5300/12 222 242
40PFT5300/60 223 241
50PFH5300/88 250 235
50PFK5300/12 251 235
50PFT5300/12 250 235
50PFT5300/60 249 235
EN 21
0.313
0.329
Blue
235
231
235
234
241
242
240
242
238
239
239
237
251
254
255
255
255
254
253
252
254
255
254
253
2015-Jun-12