Dell E157FP - 15" LCD Monitor Podręcznik użytkownika - Strona 25
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Missing Pixels
LCD screen has spots
Stuck-on Pixels
LCD screen has bright spots
Brightness Problems
Picture too dim or too bright
Geometric Distortion
Screen not centered correctly
Horizontal/Vertical
Screen has one or more lines
Lines
Sync Problems
Screen is scrambled or appears
torn
LCD Scratched
Screen has scratches or
smudges
Safety Related Issues
Visible signs of smoke or sparks
Intermittent Problems
Monitor malfunctions on & off
Missing Color
Picture missing color
Wrong Color
Picture color not good
Product Specific Problems
SPECIFIC
WHAT YOU EXPERIENCE
SYMPTOMS
Screen image is
Image is centered on screen, but does
too small
not fill entire viewing area
Cannot adjust the
OSD does not appear on the screen
monitor with the
buttons on the
front panel
The monitor will
No picture, the LED light is green. When
not go into power
press "+", "-" or "Menu" key, the message
saving mode.
" No input signal " will appear.
No Input Signal
No picture, the LED light is green. When
when user
press "+", "-" or "Menu" key, the message
controls pressed
" No input signal " will appear.
Adjust Phase and Clock controls through OSD
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Perform monitor reset
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Check environmental factors
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Relocate and test in another room
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Cycle power on-off
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These are pixels that are permanently off and is a natural defect that occurs in LCD
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technology
Cycle power on-off
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These are pixels that are permanently on and is a natural defect that occurs in LCD
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technology
Perform monitor reset on "All Settings"
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Press Auto Adjust button
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Adjust brightness & contrast controls
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Perform monitor reset on "Position Settings Only"
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Press auto-adjust button
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Adjust the centering controls
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Ensure monitor is in proper video mode
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Perform monitor reset on "All Settings"
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Press Auto Adjust button
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Adjust Phase and Clock controls via OSD
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Perform monitor self-test feature check and determine if these lines are also in self-test
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mode
Check for bent or broken pins
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Perform monitor reset on "All Settings"
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Press Auto Adjust button
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Adjust Phase and Clock controls via OSD
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Perform monitor self-test feature check to determine if scrambled screen appears in self-
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test mode
Check for bent or broken pins
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Boot up in the "safe mode"
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Turn monitor off and clean the screen
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For cleaning instruction, see
Caring for your
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Do not perform any troubleshooting steps
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Monitor needs to be replaced
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Ensure monitor is in proper video mode
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Ensure video cable connection to computer and to the flat panel is secure
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Perform monitor reset on "All Settings"
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Perform monitor self-test feature check to determine if the intermittent problem occurs in
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self-test mode
Perform monitor self-test feature check
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Check connection integrity at both end of the video cable
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Check for bent or broken pins
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Change the color to "User Preset"
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Adjust R/G/B value of "User Preset"
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POSSIBLE SOLUTIONS
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Monitor.
Perform monitor reset on "All Settings"
Turn the monitor off and unplug the power
cord and then plug back and power on
Move mouse or hit any key on the keyboard
on the computer or activate video player,
then access the OSD to set both Audio/Video
to " off " state.
Check the signal source Make sure the
Computer is not in power saving by moving
mouse or pressing any key on the keyboard.
Check whether the signal cable is plugged in
and seated properly. Re-plug the signal cable