Troubleshooting - Philips Dell W2300 Service Manual

Common Problems
The following table contains general information about common LCD TV problems you might encounter.
COMMON SYMPTOMS WHAT YOU EXPERIENCE
No Video/ Power LED off No picture, LCD TV is dead
No Video/ Power LED on No picture or no brightness
Poor Focus Picture is fuzzy, blurry or ghosting
Shaky/Jittery Video Wavy picture or fine movement
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 Lines
Screen has one or more 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
LCD TV malfunctions on & off

Troubleshooting

POSSIBLE SOLUTIONS
Check connection integrity at both ends of the video cable
Electric outlet verification
Ensure power button depressed fully
Increase brightness & contrast controls
Perform LCD TV self-test feature check
Check for bent or broken pins
Push Auto adjust button
Adjust Phase and Clock controls via OSD
Eliminate video extension cables
Perform LCD TV reset
Lower video resolution or increase font size
Push Auto Adjust button
Adjust Phase and Clock controls via OSD
Perform LCD TV reset
Check environmental factors
Relocate and test in other room
Cycle power on-off
These are pixels that are permanently off and is a natural defect that
occurs in LCD technology
Cycle power on-off
These are pixels that are permanently on and is a natural defect that
occurs in LCD technology
Perform LCD TV reset
Push Auto Adjust button
Adjust brightness & contrast controls
Note: When operating in DVI mode, the contrast adjustment is not
available.
Perform LCD TV reset on "Position Settings Only"
Push auto-adjust button
Adjust the centering controls
Ensure LCD TV is in proper video mode
Note: When operating in DVI mode, the positioning adjustments are
not available.
Perform LCD TV reset
Push Auto Adjust button
Adjust Phase and Clock controls via OSD
Perform LCD TV self-test feature check and determine if these lines
are also in self-test mode
Check for bent or broken pins
Note: When operating in DVI mode, the Pixel Clock and Phase
adjustments are not available.
Perform LCD TV reset
Push Auto Adjust button
Adjust Phase and Clock controls via OSD
Perform LCD TV self-test feature check to determine if scrambled
screen appears in self-testMode
Check for bent or broken pins
Boot up in the "safe mode"
Turn LCD TV off and clean the screen
Do not perform any troubleshooting steps
LCD TV needs to be replaced
Ensure LCD TV is in proper video mode
Ensure video cable connection to computer and to the flat panel is
secure
Perform LCD TV reset
Perform LCD TV self-test feature check to determine if the
intermittent problem occurs in self-test mode
W2300 19
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