Color Adjustment - Philips 170B6CS/75 Service Manual

White Balance Adjustment
Alignment procedure
1. Turn on 170B6 LCD monitor.
2. Turn on the Timing/Pattern generator. See Fig. 1
Setting generator to provide CROSS-Hatch pattern at
Resolution :1280*1024
Timing : H= 64kHz V= 60 Hz
3. Preset LCD colour Analyzer CA-110
- Remove the lens protective cover of probe CA-A30.
- Set Measuring/viewing selector to Measuring position for reset
analyzer. (Zero calibration) as Fig. 2
- Turn on the colour analyzer (CA-110).
- Press 0-CAL button to starting reset analyzer. See Fig. 3
Fig. 1
0-CAL
Fig. 3
4. Entering factory adjustment mode of LCD Monitor.
1). Turn off monitor.
2). [Push "AUTO" & "OK" buttons at the same time and hold them]
+[Press "power" button untill comes out "Windows screen" ]
=> then release all buttons
3).Press "OK" button, wait until the OSD menu with Characters
"HUDSON 170B6 V023 2004/12/06" (below OSD menu) come
on the Screen of the monitor(as Fig.4).
Factory Mode
Indicator
Note: after alignment, please reset OSD to user s mode for normal
operation. Otherwise, the monitor won t entering power saving mode
and showing full white picture all the time as no video signal supplied.
To leave factory mode by restart the monitor.
5. Adjust OSD menu to lower position of screen (i.g. adjust V-position to
value " 0 " at submenu of OSD Setting.
6. Setting Brightness and Contrast
- Adjust Brightness to value " 100".
- Adjust Contrast to value " 50" .
7. Switch light probe to Viewing position.
8. Move the Lens barrel forward or backward to get clear image
9. Switch light probe to Measuring position. It should be able to indicate

Color Adjustment

Measurement/viewing selector
10. Setting pattern to full white picture
11. Press
button
12. Press"OK" button to bring up submenu windows as below:
Cover(black)
Fig. 2
Measurement viewing selector Measurement viewing selector
9300° K
13. Press MENU buttons to select R G B. Increase/decrease value
6500 °K
14. Setting X, Y value listed as below:
Alignment hits: 1. R for x value, G for y value, B for Y value on the
15. Gray scale checking
Fig. 4
Note: The bright scale will be saturated, if Y is too large. The dark scale
"OK" button, then select factory mode indicator by
7
by press or buttons until the X, Y co-ordinates as below:
X= 0.283+/- 0.020
Y= 0.297 +/-0.020
Luminance> 200 Nits
X= 0.313 +/-0.020
Y= 0.329 +/-0.020
Luminance> 200 Nits
colour analyzer.
2. If the colour analyzer has been calibrated and preset
colour temperature in it. Please switch to correct
setting in accordance with colour settings.
- Switch Timing/pattern generator to
Pattern: 16 gray scale
Timing: 640 X 480 60Hz 64KHz
- Setting both Brightness 100% and Contrast to 50% (Value).
- Check black and white scale are visible clearly across the screen.
See Fig. 5
Fig. 7
will be invisible, if Y is too small. Re-alignment or review
procedure again to correct this.
170B6 LCD 13
Go to cover page
Clear image
Fig. 5
" "
Fig. 6