Troubleshooting
Before you call for service, determine the symptoms and make a few simple checks as shown below.
|
| Symptoms |
| Checks | |
| Picture |
| Sound | ||
|
|
| |||
|
|
|
|
| Electrical Appliances |
|
|
|
|
| |
|
| Interference |
| Noisy Sound | Cars / Motorcycles |
|
|
|
|
| Fluorescent light |
|
|
|
|
|
|
|
|
|
|
| Volume |
|
|
|
|
| |
|
| Normal Picture |
| No Sound | (Check whether the mute function has been activated on the remote control.) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Not plugged into AC outlet |
|
|
|
|
| |
|
| No Picture |
| No Sound | Not switched on |
|
|
| Picture and Brightness/Volume setting | ||
|
|
|
|
| |
|
|
|
|
| (Check by pressing the power switch or |
|
|
|
|
| |
|
|
|
|
| If a signal with a |
|
|
|
|
| |
|
| No Picture |
| Normal Sound | the input terminal indication is displayed. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Colour controls set at minimum level |
|
|
|
|
| |
|
| No Colour |
| Normal Sound | (see page 26, 27) |
|
|
|
|
| Colour system (see page 50) |
|
|
|
|
|
|
| No remote control operations | can be performed. | Check whether the batteries have discharged completely and, if they have not, | ||
|
|
|
|
| whether they were inserted properly. |
|
|
|
|
| Check whether the remote control sensor is exposed to an outdoor light or a |
|
|
|
|
| strong fluorescent light. |
|
|
|
|
| Check whether the remote control designed specifically for use with the unit is |
|
|
|
|
| being used. (The unit cannot be operated by any other remote control.) |
| A cracking sound is sometimes heard from the unit. | If there is nothing wrong with the picture or sound, this is the sound of the cabinet | |||
|
|
|
|
| undergoing very slight contractions in response to changes in the room temperature. |
|
|
|
|
| There are no adverse effects on the performance or other aspects. |
| The top or bottom of the picture on the screen is cut | Adjust the position of the picture on the screen. | |||
| off when I use the zoom function. |
|
| ||
| Areas at the top and bottom of the screen where | When using a video software program (such as a cinema size program) with a | |||
| the image is missing appear when I use the zoom | screen wider than one in the 16:9 mode, blank areas separate from the images | |||
| function. |
| are formed at the top and bottom of the screen. | ||
| I can hear sounds coming from inside the unit. | When the power is turned on, a sound of the display panel being driven may be | |||
|
|
|
|
| heard: This is normal and not indicative of malfunctioning. |
This Plasma Display uses special image processing. Hence a slight time lag may occur between image and audio, depending on the type of input signal. However, this is not a malfunction.
Plasma Display panel
| Symptoms | Check | |
The screen darkens slightly | The screen will darken slightly when photos, still images of a computer or other pictures with minimal | ||
when bright pictures with minimal | movements are shown for an extended period. This is done to reduce image retention on the screen | ||
movements are shown. | and the shortening of the screen’s service life: It is normal and not indicative of malfunctioning. | ||
It takes a while for the picture | The unit digitally processes the various signals in order to reproduce esthetically pleasing images. As | ||
to appear. | such, it sometimes takes a few moments for the picture to appear when the power has been turned | ||
|
|
| on, when the input has been switched or when the images for the main picture and sub picture on |
|
|
| the two screens are swapped. |
The edges of the images | Due to the characteristics of the system used to drive the panel, the edges may appear to flicker in | ||
flicker. | the | ||
The brightness on both sides of | When viewing the side panels at the “High” or “Mid” setting, the brightness on both sides may change | ||
images in the 4:3 mode changes. | depending on the kind of program shown: This is normal and not indicative of malfunctioning. | ||
Some parts of the screen do | The plasma display panel is manufactured using an extremely high level of precision technology, | ||
not light up. | however, sometimes some parts of the screen may be missing picture elements or have luminous | ||
|
|
| spots. This is not a malfunction. |
|
|
| Do not allow a still picture to be displayed for an extended period, as this can cause a permanent |
|
|
| image retention to remain on the Plasma Display. |
|
|
| Examples of still pictures include logos, video games, computer images, teletext and images displayed |
|
|
| in 4:3 mode. |
|
|
| Note: |
|
|
| The permanent image retention on the Plasma Display resulting from fixed image use is not an |
Image retention appears | operating defect and as such is not covered by the Warranty. | ||
|
|
| This product is not designed to display fixed images for extended periods of time. |
Whirring sounds can be heard | The display unit is fitted with a cooling fan to dissipate heat generated during normal use. The whirring | ||
from the display unit. | sound is caused by rotation of the fan and is not a malfunction. | ||
61