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PN-525E
Инструкция по эксплуатации Страница: 34

Sharp PN-525E [34/184] Troubleshooting

Troubleshooting

Before calling for repair services, make sure following checks

for possible remedies to the encountered symptoms.

There is no picture or sound.

• Is the power cord disconnected? (See page 12.)

• Is the main power switch set to “OFF”? (See page 14.)

• Is the monitor in standby mode (the power LED illuminating

in orange)? (See page 14.)

• Make sure correct input mode is selected. (See page 15.)

• If any external equipment is connected, make sure the

equipment is operating (playing back).

Remote control does not work.

• Are the batteries inserted with polarity (+,-) aligned? (See

page 13.)

• Are the batteries exhausted? (See page 13.)

• Point the remote control unit toward the monitor’s remote

control sensor. (See page 13.)

• Is the menu display hidden or is operation disabled? (See

page 23.)

Sound from left and right speakers is reversed.

Sound is heard from only one side.

• Are audio cables connected properly? (See pages 10 and

11.)

• Make sure audio cables for external speakers are

connected properly: left and right cables may be reversed

or one of the two cables may not be connected. (See page

11.)

• Check the setting of BALANCE for AUDIO menu. (See

page 18.)

There is a picture but no sound.

• Is the sound muted? (See page 15.)

• Make sure the volume is not set to minimum. (See page

15.)

• Is the PC audio cable (commercially available) connected?

(See page 10.)

• Are audio cables connected properly? (See page 10.)

• Is the audio signal input properly to the audio input terminal

corresponding to the selected video input terminal? (See

page 15.)

Unstable video.

• The signal may be incompatible. (See pages 10 and 34.)

• Try the automatic screen adjustment when the PC2 input

terminal or PC3 input terminals is used. (See page 22.)

PC1 or AV1 does not appear properly.

• Is the setting of DVI SELECT correct? (See page 19.)

• Is the input signal compatible with this monitor? (See pages

10 and 34.)

• Turn off the power to the connected equipment and then

turn the power on again.

• If the monitors are connected in a daisy chain, turn off the

power to all the monitors connected in a daisy chain and

then turn the power on again.

PC3 or AV2 does not appear properly.

• Is the setting of BNC SELECT correct? (See page 19.)

• Is the input signal compatible with this monitor? (See page

34.)

Control buttons do not work.

There is no picture.

• Some kind of load noises from outside might interfere with

normal operation. Turn off the power and turn it on after

waiting at least 5 seconds, and then check the operation.

The input mode changes automatically.

• When the AUTO INPUT CHANGE is ON and no signal

is present in a selected input mode, the AUTO INPUT

CHANGE automatically changes the selected mode to a

mode where a video signal is present. (See page 19.)

The input mode may change in the following cases:

- When a computer is in standby mode.

- When video play is stopped with a playback device.

Power LED ﬂashes red.

“SERVICE CALL” appears in the corner of the screen.

• Hardware has a problem. Turn off the monitor and request

repair from your SHARP dealer.

When “TEMPERATURE” is displayed.

• When the internal temperature of the monitor rises

excessively, the brightness of the backlight decreases

in order to prevent high-temperature-related problems.

Remove the cause of the excessive rise in temperature.

(See the description below.)

The monitor sometimes makes a cracking sound.

• You may hear cracking sound from the monitor. This

happens when the cabinet slightly expands and contracts

according to change in temperature. This does not affect

the monitor’s performance.

■ Warning when temperature rises

• When the internal temperature of the monitor rises

excessively, the brightness of the backlight decreases

automatically in order to prevent high-temperature-

related problems. When this occurs, “TEMPERATURE” is

displayed on the screen and the Power LED ﬂashes red

and green alternately.

• If the internal temperature rises further, the monitor

automatically enters standby mode. (The Power LED

continues ﬂashing red and green alternately.)

Solution:

• If the monitor enters standby mode due to a rise in

temperature, to return to normal display, turn the main

power switch off and then back on again. The monitor,

however, will enter standby mode again if the cause of the

temperature rise is not eliminated. (See page 9.)

• Check whether the monitor is placed at a location where a

quick rise in temperature is likely. Internal temperature rises

quickly if the vents on the monitor are blocked.

• Internal temperature rises quickly if dust accumulates inside

the monitor or around the vents. Remove dust if possible.

Ask Sharp dealer about removing internal dust.

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Troubleshooting Before calling for repair services make sure following checks for possible remedies to the encountered symptoms Control buttons do not work There is no picture There is no picture or sound Some kind of load noises from outside might interfere with normal operation Turn off the power and turn it on after Is the power cord disconnected See page 12 Is the main power switch set to OFF See page 14 Is the monitor in standby mode the power LED illuminating in orange See page 14 Make sure correct input mode is selected See page 15 If any external equipments connected make sure the equipment is operating playing back Remote control does not work Are the batteries inserted with polarity aligned See page 13 Are the batteries exhausted See page 13 Point the remote control unit toward the monitor s remote control sensor See page 13 Is the menu display hidden or is operation disabled See page 23 waiting at least 5 seconds and then check the operation The input mode changes automatically When the AUTO INPUT CHANGE is ON and no signal is present in a selected input mode the AUTO INPUT CHANGE automatically changes the selected mode to a mode where a video signal is present See page 19 The input mode may change in the following cases When a computer is in standby mode When video play is stopped with a playback device Power LED flashes red SERVICE CALL appears in the corner of the screen Hardware has a problem Turn off the monitor and request repair from your SHARP dealer When TEMPERATURE is displayed Sound from left and right speakers is reversed Sound is heard from only one side Are audio cables connected properly See pages 10 and 11 Make sure audio cables for external speakers are connected properly left and right cables may be reversed or one of the two cables may not be connected See page 11 Check the setting of BALANCE for AUDIO menu See page 18 When the internal temperature of the monitor rises excessively the brightness of the backlight decreases in order to preventhigh temperature related problems Remove the cause of the excessive rise in temperature See the description below The monitor sometimes makes a cracking sound You may hear cracking sound from the monitor This happens when the cabinet slightly expands and contracts according to change in temperature This does not affect the monitor s performance There is a picture but no sound Is the sound muted See page 15 Make sure the volume is not set to minimum See page 15 Is the PC audio cable commercially available connected See page 10 Are audio cables connected properly See page 10 Is the audio signal input properly to the audio input terminal corresponding to the selected video input terminal See page 15 Unstable video The signal may be incompatible See pages 10 and 34 Try the automatic screen adjustment when the PC2 input terminal or PC3 input terminals is used See page 22 PC1 or AV1 does not appear properly Is the setting of DVI SELECT correct See page 19 Is the input signal compatible with this monitor See pages 10 and 34 Turn off the power to the connected equipment and then turn the power on again If the monitors are connected in a daisy chain turn off the power to all the monitors connected in a daisy chain and then turn the power on again PC3 or AV2 does not appear properly Is the setting of BNC SELECT correct See page 19 Is the input signal compatible with this monitor See page 34 32 Warning when temperature rises When the internal temperature of the monitor rises excessively the brightness of the backlight decreases automatically in order to prevent high temperaturerelated problems When this occurs TEMPERATURE is displayed on the screen and the Power LED flashes red and green alternately If the internal temperature rises further the monitor automatically enters standby mode The Power LED continues flashing red and green alternately Solution If the monitor enters standby mode due to a rise in temperature to return to normal display turn the main power switch off and then back on again The monitor however will enter standby mode again if the cause of the temperature rise is not eliminated See page 9 Check whether the monitor is placed at a location where a quick rise in temperature is likely Internal temperature rises quickly if the vents on the monitor are blocked Internal temperature rises quickly if dust accumulates inside the monitor or around the vents Remove dust if possible Ask Sharp dealer about removing internal dust

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