Maintenance and Troubleshooting

    This chapter gives general maintenance information and troubleshooting steps.

Cleaning and maintenance

Cleaning the screen

Do not use substances such as glass cleaners, solvents, and thinners.
The screen of your plasma TV has been specially treated. Wipe the surface gently using only a cleaning cloth or a soft, lint-free cloth.
If the surface is particular dirty, use a soft cloth and water to clean the screen. Squirt a little water on the cloth (never directly on the screen), and wipe the screen with the cloth.

    Warning

    The screen of your plasma TV is made of specially coated glass and can be scratched or damaged by abrasive or ammonia-based window cleaners.

    Scratches on the bezel or glass are not covered by your warranty.

    Do not scratch or hit the surface of the screen with your fingers or any hard objects.

    Cleaning the exterior

    Your plasma TV is cooled by air circulated through the vents on the case, so keep the vents free of dust. With your plasma TV turned off and unplugged, brush the dust away from the vents with a damp cloth. Be careful not to drip any water into the vents. Do not attempt to clean dust from the inside of your plasma TV.
    Do not use abrasive or solvent cleaners because they can damage the finish on components.
    Do not allow any excessive water or moisture to come into contact with the surface of your plasma TV. If water or moisture gets inside your plasma TV, operating problems and electrical and shock hazards may result.
    Do not scratch or hit the cabinet with your fingers or any hard objects.
    Do not place articles made from rubber or PVC near the cabinet for any extended periods of time.

    Avoiding image burn-in

    Displaying the same stationary patterns over extended periods of time, such as black bars, stock tickers, video games, or shopping channel logos and pricing displays, can leave a permanent ghost image (burn-in). Avoid this by mixing your viewing patterns. Do not show the same stationary image for more than 15% of your total TV viewing in any one week.
    Your warranty does NOT cover screen burn-in.

    Troubleshooting

      Use the following information to solve common problems.

    Symptom Possible Cause Remedy

    No picture is displayed

    1. The power cord is disconnected.
    2. The main power switch on the back of your plasma TV is not switched on.
    3. The selected input source has no connection.
    4. Your plasma TV is in standby mode while connected to a computer in RGB mode.
    1. Plug in the power cord.
    2. Make sure that the power switch is switched on.
    3. Connect an input source to your plasma TV.
    4. Press any key on your computer keyboard.

    Interference displayed on your plasma TV or audible noise is heard

    1. You may be experiencing interference from surrounding electrical appliances, cars, motorcycles, or fluorescent lights.
    1. Move your plasma TV to another location to see if the interference is reduced.

    Color is abnormal

    1. The input source cable is not connected correctly.
    1. Make sure that the input source cable is attached correctly to the back of your plasma TV.

    Picture is distorted with abnormal patterns

    1. The input source cable is not connected correctly.
    2. The video input source is beyond the capabilities of your plasma TV.
    1. Make sure that the input source cable is attached correctly.
    2. Check the video input source to see if it is beyond the range of your plasma TV. Compare the devices's specifications with your plasma TV's specifications.

    Display image does not fill up the full size of the screen

    1. If you are using RGB mode, the H-Size and V-Size are set incorrectly.
    2. If you are using TV, AV1, AV2, or Component with 480i input, the 4:3 WIDE mode is switched on.
    1. Use H-SIZE and V-SIZE to adjust the size of the display image.
    2. Use the WIDE button to scroll through various full screen modes.

    Can hear sound, but cannot see picture

    1. Your input source cable is connected incorrectly.
    1. Make sure that both video input and sound input source cables are connected correctly.

    Can see picture, but cannot hear sound

    1. Volume is turned all the way down.
    2. MUTE is turned on.
    3. Your input source cable is connected incorrectly.
    1. Use VOLUME +/- to hear sound.
    2. Press the MUTE button to turn off MUTE.
    3. Make sure that both video input and sound input source cables are connected correctly.

    Some picture elements do not light up

    1. Some pixels of your plasma TV may not turn on.
    1. Your plasma TV is manufactured using an extremely high level of precision technology. However, sometimes some pixels of your plasma TV may not display. Pixel defects within industry specifications are inherent to this type of product and do not constitute a defective product.

    After-Images can still be seen on your plasma TV after the TV is powered off. (Examples of still pictures include logos, video games, computer images, and images displayed in 4:3 normal mode.)

    1. A still picture is displayed for an extended period of time.
    1. Do not allow a still image to be displayed for an extended period of time because this can cause a permanent after-image to remain on your plasma TV. For more information about "burn-in", see page.

    Artifacting, or "noise", appears in the picture

    1. An image of lower quality is "up-converted" to display on your plasma TV.
    1. When your plasma TV's digital capabilities exceed a digital broadcast signal, the signal is up-converted (increased) to match your plasma TV's display capabilities.

    Screen brightness is diminished

    1. It is normal for video display devices to experience degradation of brightness over the life of the product.
    1. Normal brightness degradation is not considered a warranted defect.

    Telephone support

      If the preceding information does not resolve your problem or if you have other questions relating to your plasma TV, call our Service Center at 888-737-MyGW (6949).

      For more information about Gateway, visit www.gateway.com.