Picture Too Dim - Philips 107B30 Service Manual

M36 107B3 GS_3
92
9
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9

Picture too dim

Adjust Brightness and/or contrast
via the Monitor "On-Screen Display"
or "Front Control Knob".
Is picture displayed
normally?
YES
Is an external Anti-Glare screen
(like protective cover, touch
END
screen..etc.) being used ?
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General Troubleshooting Guide
Note :
1. Sun light passing through a window is much brighter than monitor
luminance (Luminance is the measurable quantity which most closely
corresponds to brightness), therefore the two worst places for a monitor
is directly facing the window or directly behind the window.
Position the monitor away from these two areas.
2. External Anti-Glare screens or Mask
These external screens reduce overall monitor brightness and contrast
forcing the viewer to maximize too much front screen brightness.
Too much front screen brightness degrades focus and continuous use in this
manner will shorten CRT life by overdriving the CRT guns and phosphors.
3. Some models have a Video Input Select under Advanced Controls in the
Monitor's On-Screen Display. Most computers require it to be set at 0.7V.
NO
Remove any external
Anti-Glare screen.
Is picture displayed
normally?
YES
END
* Reset the monitor via OSD manipulation.
NO
(Select "Reset to Factory settings".)
*(or => Change the color temperature settings
to be 9300 color coordination from OSD menu.)
*(or => Set video input level to 0.7V on the OSD
menu for some models.)
NO
* Try the monitor with another computer
(Video card could be defective.)
Is picture displayed
normally?
NO
YES
It is need to check and
END
repair the monitor.
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