Philips 150X3M, Service Manual

Page: 9 / 92

9 150X3M LCD CLOCK & PHASE Adjustments
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Step 5 : Select VIDEO NOISE by press button.
Step 6 : Press for bring up it’s submenu.
The 150X3M has build-in a auto adjustment hotkey on the front panel,
you may obtained a optimal video display by simply press the button
and save the settings. CLOCK, PHASE, Vertical position, and Horizontal
position are adjusted automatically.
Step 1 : Click on the Start button (Win95, Win98 or Win NT)
and choose " Shut Down...". as shown in Fig.1
Step 2 : The menu of " Shut Down Windows " is as shown in Fig. 2
Step 3 : Remaining Shut Down Window on the screen , follow
The CLOCK and PHASE adjustment instructions for the
optimal video display.
Fig.1
Fig. 2
PHASE phenomenon
Due to the different quality of video signal generated from graphics
cards. It is necessary to adjust CLOCK and PHASE functions for the
optimal video display of LCD monitor. Following steps will guide you to
make correct adjustment of CLOCK and PHASE.
However, CLOCK and PHASE functions are only available while analog
video signal is supplied. Operating unit under digital signal state, the
video clock information can be obtained from graphics cards directly.
Therefor, it is unnecessary to adjust these functions
Manual adjustment
If the quality of display still poor or flicker, you may also improve it by
manual adjust CLOCK and PHASE functions to eliminate the flicker.
Step 4 : Press the button to bring up OSD menu.
Step 7 : Press or to adjust PHASE. The picture will be jitter as
following figure, adjust PHASE and check the picture, stop at the
point that without any vertical jitter bar remaining on the screen.
Step 8 : Press or to adjust CLOCK. The picture will be jitter as
following figure, adjust CLOCK to fine-ture the video until
optimal display is obtained.
Step 9 : Quit OSD menu by press button to save the settings.
CLOCK Phenomenon
Auto adjustment hotkey