Manuals

Manuals
Troubleshooting: Dell W3000 LCD TV User's Guide

Back to Contents Page

Troubleshooting: Dell™ W3000 LCD TV User's Guide

Troubleshooting PC Display Problems • OSD warning message • Common Problems • TV and Audio Problems • Video Problems • Remote Control Problems • Product Specific Problems


Troubleshooting PC Display Problems

Self-Test Feature Check (STFC)

Your LCD TV when used as a computer display through DVI and/or VGA connection provides a self-test feature that allows you to check whether your LCD TV is functioning properly. If your LCD TV and computer are properly connected but the LCD TV screen remains dark, run the LCD TV self-test by performing the following steps:

  1. Turn off both your computer and the LCD TV.
  2. Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove both Digital(white connector) and the Analog(blue connector) cables from the back of computer.
  3. Turn on the LCD TV.

    The floating 'Dell - self-test Feature Check' dialog box should appear on-screen (against a black background) if the LCD TV cannot sense a video signal and is working correctly. While in self-test mode, the power LED remains green and the self-test pattern will scroll through the screen continually.

    This box also appears during normal system operation if the video cable becomes disconnected or damaged.
  4. Turn off your LCD TV and reconnect the video cable; then turn on both your computer and the LCD TV.If your LCD TV screen remains blank after you use the previous procedure, check your video controller and computer system; your LCD TV is functioning properly.

OSD Warning Messages

A warning message may appear on the screen indicating LCD TV current status.

This warning message means the LCD TV is in the adjustment process.
A warning message may appear on the screen indicating that the LCD TV is out of sync range.

See Specifications for the Horizontal and Vertical frequency ranges addressable by this LCD TV. Recommended mode is 1280x 768 @ 60Hz.

This message means that there is no video input signal.

LCD TV is in a power save mode (in PC mode).

The main OSD menu is unlocked.
The main OSD menu is locked.

 


Common Problems

The following table contains general information about common LCD TV problems you might encounter.

COMMON SYMPTOMS

WHAT YOU EXPERIENCE

POSSIBLE SOLUTIONS

No Video/ Power LED off No picture, LCD TV is dead
  • Check connection integrity at both ends of the video cable
  • Electric outlet verification
  • Ensure power button depressed fully
No Video/ Power LED on No picture or no brightness
  • Increase brightness & contrast controls
  • Perform LCD TV self-test feature check
  • Check for bent or broken pins
Poor Focus Picture is fuzzy, blurry or ghosting
  • 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
Shaky/Jittery Video Wavy picture or fine movement
  • Push Auto Adjust button
  • Adjust Phase and Clock controls via OSD
  • Perform LCD TV reset
  • Check environmental factors
  • Relocate and test in other room
Missing Pixels LCD screen has spots
  • Cycle power on-off
  • These are pixels that are permanently off and is a natural defect that occurs in LCD technology
Stuck-on Pixels LCD screen has bright spots
  • Cycle power on-off
  • These are pixels that are permanently on and is a natural defect that occurs in LCD technology
Brightness Problems Picture too dim or too bright
  • Perform LCD TV reset
  • Push Auto Adjust button
  • Adjust brightness & contrast controls

Note: When operating in DVI mode, the contrast adjustment is not available.

Geometric Distortion Screen not centered correctly
  • 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.

Horizontal/Vertical Lines Screen has one or more lines
  • 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.

Sync Problems Screen is scrambled or appears torn
  • 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-test mode
  • Check for bent or broken pins
  • Boot up in the "safe mode"
LCD Scratched Screen has scratches or smudges
  • Turn LCD TV off and clean the screen
Safety Related Issues Visible signs of smoke or sparks
  • Do not perform any troubleshooting steps
  • LCD TV needs to be replaced
Intermittent Problems LCD TV malfunctions on & off
  • 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


TV and Audio Problems

COMMON SYMPTOMS WHAT YOU EXPERIENCE POSSIBLE SOLUTIONS

Poor TV signal reception

Abnormal picture seen from the screen
  • The proximity of mountains or high buildings may be responsible for ghost pictures, echoing or shadows. In this case, try manually adjusting your pictures: see 'fine tuning' or adjust the direction of the outside aerial.
No TV picture No picture when TV input was selected
  • Have you connected the aerial socket properly? Have you chosen the right system? Poorly connected aerial sockets are often the cause of picture or sound problems (sometimes the connectors can become half disconnected if the LCD TV set is moved or turned). Check all connections.
No sound No sound output when a program with sound was playing
  • Ensure that the audio cables are firmly connected to both the audio input connectors on your LCD TV and audio output connectors on your PC or Video player.
  • If on certain TV channels you receive a picture but no sound, this means that you do not have the correct TV system. Modify the SYSTEM setting.

Video Problems

COMMON SYMPTOMS WHAT YOU EXPERIENCE POSSIBLE SOLUTIONS

No Video

No signal indicator is displayed.
  • Check Video Input Selection
    • Composite: Yellow colored RCA jack
    • S-Video: Typically a round 4 pin jack
    • Component: Typically 3 RCA jacks of Green, Red and Blue.
Low Quality DVD playback Picture not crisp and some color distortion
  • Check DVD connection
    • Composite gives good picture
    • S-Video gives better picture
    • Component gives best picture
No sound See video but no audio
  • Check if TV volume is turn off of muted
  • Connect the audio cable securely
  • Audio cable is connected incorrectly
  • Verify that the audio source is selected correctly in the OSD
No / Poor DVD Video Seeing double image of the DVD in poor quality
  • Verify that the DVD is connect to the Component "TV IN”
  • Verify that the DVD is in Interlaced mode

 

Remote Control Problems

REMOTE CONTROL PROBLEMS WHAT YOU EXPERIENCE POSSIBLE SOLUTIONS
Remote control does not work properly No response from LCD TV when remote is pressed
  • Point the remote control directly at the remote sensor on the LCD TV
  • Replace both batteries with new ones

 

 

Product Specific Problems

SPECIFIC SYMPTOMS WHAT YOU SEE POSSIBLE SOLUTIONS
Screen image is too small Image is centered on screen, but does not fill entire viewing area
  • Perform LCD TV reset on "All Settings"
Cannot adjust the LCD TV with the buttons on the front panel OSD does not appear on the screen
  • Turn the LCD TV off and unplug the power cord and then plug back and power on


Back to Contents Page

snWEB1