Philips LC4.8E AB Service Manual page 121

8.3.4 ADC Gain and Grey Scale Alignment & Panel Size Settings
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. For further important NVM
settings, see also the other NVM tables elsewhere in this
manual.
Table 8-1 ADC gain and grey scale alignment
SDTV ADC Gain settings: Use the NVM Editor in SAM to set these values in the Hercules
Setting
NVM_ADC_GAIN_R
NVM_ADC_GAIN_G
NVM_ADC_GAIN_B
SDTV Greyscale settings: Use the SC NVM Editor in SAM to set these values in the Scaler
Setting
ADC_RED_OFFSET2
ADC_GRN_OFFSET2
ADC_BLU_OFFSET2
ADC_RED_GAIN
ADC_GRN_GAIN
ADC_BLU_GAIN
PC Greyscale settings
Setting
ADC_RED_OFFSET2
ADC_GRN_OFFSET2
ADC_BLU_OFFSET2
ADC_RED_GAIN
ADC_GRN_GAIN
ADC_BLU_GAIN
HD Greyscale settings
Setting
ADC_RED_OFFSET2
ADC_GRN_OFFSET2
ADC_BLU_OFFSET2
ADC_RED_GAIN
ADC_GRN_GAIN
ADC_BLU_GAIN
NVM
Hercules NVM Address (decimal
value)
006
007
008
NVM
Scaler NVM Address (decimal value)
338
339
340
341
343
345
Scaler NVM Address (decimal value)
325
326
327
328
330
332
Scaler NVM Address (decimal value)
351
352
353
354
356
358
Alignments
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!
• Do not change the Scaler NVM settings, as this will
hamper the DVI functionality of the TV set!
• Always note down the existing NVM settings, before
changing the settings. This will enable you to return to the
orgininal settings, if the new settings turn out to be
incorrect.
These models are
with ADC &
Columbus 3D
Combfilter
Settings
Range
(decimal
value)
143 075 - 155
191 200 - 250
143 075 - 155
These models are
with ADC &
Columbus 3D
Combfilter
Settings
Range
(decimal
value)
080 050 - 110
080 050 - 110
080 050 - 110
154 045 - 095
154 045 - 095
154 045 - 095
These models are
with ADC &
Columbus 3D
Combfilter
Settings
Range
(decimal
value)
080 040 - 090
080 040 - 090
080 040 - 090
154 180 - 270
154 180 - 270
154 180 - 270
These models are
with ADC &
Columbus 3D
Combfilter
Settings
Range
(decimal
value)
064 050 - 090
082 050 - 090
064 050 - 090
159 120 - 200
144 120 - 200
147 120 - 200
LC4.8E AB 8. EN 121