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 stand-by button on the remote control.)

 

 

 

 

 

 

 

 

 

 

If a signal with a non-applicable colour system format, or frequency is input, only

 

 

 

 

 

 

 

No Picture

 

Normal Sound

the input terminal indication is displayed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Colour controls set at minimum level

 

 

 

 

 

 

 

No Colour

 

Normal Sound

(see page 22, 23)

 

 

 

 

 

Colour system (see page 39)

 

 

 

 

 

 

 

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 fast-moving parts of the images: This is normal and not indicative of malfunctioning.

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:

Image retention appears

The permanent image retention on the Plasma Display resulting from fixed image use is not an 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.

[for TH-42PH10EK/S,

The display unit is fitted with a cooling fan to dissipate heat generated during normal use. The whirring

TH-50PH10EK/S,

sound is caused by rotation of the fan and is not a malfunction.

TH-58PH10EK]

 

Whirring sounds can be heard

 

from the display unit.

 

51

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Image 51
Philips TH-42PH10EK operating instructions Troubleshooting, Plasma Display panel

TH-42PH10EK specifications

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