Philips 42PFL7312/78, Руководство по обслуживанию

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Alignments EN 72 LC4.8L LA 8.
8.3.2 Tuner
Purpose: To keep the tuner output signal constant as the input
signal amplitude varies.
AGC (RF AGC Take Over Point) alignment:
•
Activate the SAM menu.
• Go to the sub-menu “Tuner”.
• Select the “AGC” sub-menu.
• Set the “AGC” value to “27” (default).
• Set the “IFPLL” value to “32” (default).
• Switch the set to “Stand-by” to store the data.
8.3.3 White Tone
Before alignment, set:
•
“Brightness” to “60”.
• “Color” to “50”.
• “Contrast” to “60”.
• “C” to “Off”.
• “Active CTR” to “Off” (via RC).
• “Auto Picture” to “Soft”
Alignment:
• Activate SAM.
• Select “White Tone” and choose a color temperature.
• Use a 100% white screen as input signal and set the
following values: All “White point” values initial to “180” for
Non-Pixel-Plus sets and “245” for Pixel-Plus sets.
In case you have a color analyzer:
•
Measure with a calibrated (phosphor- independent) color
analyzer (e.g. Minolta CA-210) in the centre of the screen
(for LCD the analyzer may not touch 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 the initial value) by
means of decreasing the value of one or two other white
points to the correct x,y coordinates (see table “White D
alignment values”).
• Repeat this step for the other color 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 8-1 White D alignment values
If you do not have a color analyzer, you can use the default
values. This is the next best solution. The default values are
average values coming from production (statistics).
•
Set the RED, GREEN and BLUE default values per
temperature according to the values in the “Tint settings”
table.
• When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
Table 8-2 Tint settings for Non Pixel-Plus sets
Table 8-3 Tint settings for Pixel-Plus sets (37” and 42”)
8.3.4 Audio
No adjustments necessary.
8.3.5 ADC Gain and Grey Scale Alignment
The table below shows a number of NVM settings used for
each model of TV set. Be sure to use the correct editor in the
SAM menu (NVM Editor or
SC NVM Editor), because the first
one is used for the Hercules NVM, and the second one for the
SCALER (SC) part of the TV set.
Caution:
• Do not change the NVM settings without
understanding the function of each setting, because
incorrect NVM settings may seriously hamper the
correct functioning of the TV set!
• Always write down the existing NVM settings, before
changing the settings. This will enable you to return to the
original settings, if the new settings turn out to be incorrect.
Table 8-4 ADC and Grey Scale gain alignment
Tint Temp (K) x y
Warm 6500 0.310 0.328
Normal 9300 0.283 0.290
Cool 11000 0.273 0.280
Tolerance 0.004 0.004
Tint Temp (K) R - offset G - offset B - offset
Warm 6500 Rnorm + 5 Gnorm + 0 Bnorm - 25
Normal 9300 200 (32”) 200 (32”) 192 (32”)
Cool 11000 Rnorm - 10 Gnorm - 8 Bnorm + 0
Tolerance 10% 0.008 0.008 0.008
Tint Temp (K) R - offset G - offset B - offset
Warm 6500 Rnorm + 8 Gnorm + 0 Bnorm - 34
Normal 9300
240 (37”)
251 (42”) 248 (37”)
251 (42”) 232 (37”)
251 (42”)
Cool 11000 Rnorm - 13 Gnorm - 10 Bnorm + 0
Tolerance 10% 0.008 0.008 0.008
SDTV ADC Gain settings: Use the “NVM Editor” in SAM
Setting Hercules NVM Address
(decimal value)
32PFL5312 37PFL7312 42PFL7312
NVM_ADC_GAIN_R 006 145 145 145
NVM_ADC_GAIN_G 007 185 185 185
NVM_ADC_GAIN_B 008 165 165 165
SDTV Greyscale settings: Use the “SC NVM Editor” in SAM
Setting Scaler NVM Address
(decimal value)
3
2
P
FL531
2
3
7
P
FL731
2
4
2
P
FL731
2
ADC_RED_OFFSET2 338 80 32 32
ADC_GRN_OFFSET2 339 80 30 30
ADC_BLU_OFFSET2 340 80 36 36
ADC_RED_GAIN 341 70 71 71
ADC_GRN_GAIN 343 70 75 75
ADC_BLU_GAIN 345 70 68 68
PC Greyscale settings : Use the “SC NVM Editor” in SAM
ADC_RED_OFFSET2 325 70 66 66
ADC_GRN_OFFSET2 326 70 65 65
ADC_BLU_OFFSET2 327 70 68 68
ADC_RED_GAIN 328 215 219 219
ADC_GRN_GAIN 330 215 231 231
ADC_BLU_GAIN 332 215 227 227
HD Greyscale settings : Use the “SC NVM Editor” in SAM
ADC_RED_OFFSET2 351 64 64 64
ADC_GRN_OFFSET2 352 75 78 78
ADC_BLU_OFFSET2 353 64 64 64
ADC_RED_GAIN 354 160 153 153
ADC_GRN_GAIN 356 160 157 157
ADC_BLU_GAIN 358 160 139 139