Alignments - Philips TCM1.0E Service Manual

8. Alignments

Index of this chapter:
8.1 Electrical Alignments
8.2 Hardware Alignments
Note:
The Service Modes are described in chapter 5. Menu
navigation is done with the CURSOR UP, DOWN, LEFT or
RIGHT keys of the remote control transmitter.
8.1 Electrical Alignments
Perform all electrical adjustments under the following
conditions:
• Power supply voltage (depends on region):
– AP-NTSC: 120 VAC or 230 VAC / 50 Hz (± 10%).
– AP-PAL-multi: 120 - 230 VAC / 50 Hz (± 10%).
– EU: 230 VAC / 50 Hz (± 10%).
– LATAM-NTSC: 120 - 230 VAC / 50 Hz (± 10%).
– US: 120 VAC / 60 Hz (± 10%).
• Connect the set to the mains via an isolation transformer
with low internal resistance.
• Allow the set to warm up for approximately 60 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 heatsinks as ground.
• Test probe: R > 10 MΩ, C
i
• Use an isolated trimmer/screwdriver to perform
alignments.
8.2 Hardware Alignments
Not applicable.
8.2.1 White Balance Adjustment (VGA Mode)
Only VGA input requires color temperature adjustment as all
other inputs or relative ones. Both warm and cool colour
coordinates are also relatives to normal colour temperature
mode ones.
Equipment Requirements: Colour analyser.
Pre conditions:
• PicturePreset: Standard
• BlackExpand: Off
• PicturePreset: Standard
• Tone: Normal
• DynamicContrast Off
Colour Temp Alignment
Apply a 1366 × 768 /50Hz signal with white pattern, set
"brightness" at 100%, and "contrast" at 50%. Adjust the R, G,
and B Sub-Gain for the screen centre.
The 1931 CIE chromaticity (x, y) co-ordinates shall be:
Table 8-1 Alignment for 19" & 20" with a colour analyser
Normal (8000K) Cool (9000K)
x 0.296 +/- 0.010
y 0.299 +/- 0.010
Table 8-2 Alignment for 26" with a colour analyser
Normal (9000K) Cool (11000K)
x 0.289 +/- 0.010
y 0.291 +/- 0.010
< 20 pF.
i
Warm (6500K)
0.289 +/- 0.010 0.314 +/- 0.010
0.291 +/- 0.010 0.319 +/- 0.010
Warm (6500K)
0.278 +/- 0.010 0.314 +/- 0.010
0.278 +/- 0.010 0.319 +/- 0.010
Alignments TCM1.0E LA
If you do not have a Colour Analyser, the following R, G, and B
values are for your reference.
Table 8-3 Reference Value of R, G, and B
Normal (9300K) Cool (11500K)
R 146
G 146
B 146
8. EN 45
Warm (6500K)
136 154
141 150
152 138