Bedienungsanleitung 3m MP8790 (Seite 41 von 44) (Englisch)

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WHAT TO DO WHEN YOU THINK A MACHINE DEFECT HAS OCCURRED (continued)

Phenomena That May Easily Be Mistaken for Machine Defects

Before requesting repair, check in accordance with the following chart.

If the situation cannot be corrected, then contact your dealer.

Although bright spots or dark spots may appear on the screen, this is a unique characteristic of liquid crystal displays, and

such do not constitute or imply a machine defect.

NOTE

Phenomenon

Cases not involving a machine defect

Items to be confirmed

Reference

Page(s)

Power does not

come ON

The main power source is not ON.

Turn on the main power.

3, 15

The electrical power cord is not plugged in. Correctly connect the power cord.

The main power source has been

interrupted during operation, such as by

a power outage (blackout), etc.

Be sure to press the “

” (power OFF) side

of the main power switch, and leave this OFF

for approximately 20 minutes. After the unit

has sufficiently cooled down, turn ON the

power source.

No sound or

pictures are

outputted

The input changeover settings

are mismatched.

Select the input signal, and

correct the settings.

No signal is being inputted.

Correctly connect the connection cord.

8-12

Pictures are

displayed, but no

sounds are heard

The electrical wiring to this unit

is not correctly connected.

Correctly connect the connection cord.

8-12

The volume setting has been set at (or

adjusted to) an extremely low level.

Adjust the VOLUME setting to a higher level.

The MUTE mode is the current setting.

Press the MUTE button to release

(change) the MUTE mode setting.

Sounds are

heard, but no

pictures are

displayed

The electrical wiring to this unit

is not correctly connected.

Correctly connect the connection cord.

8-12

The brightness setting has been set at

(or adjusted to) an extremely low level.

Adjust the BRIGHT setting to a

brighter level.

The lens cap has not been removed.

Remove the lens cap.

Colors have a faded-

out appearance

Color tone is poor

Color depth setting or color tone setting

Perform picture adjustments by changing the

COLOR BAL R, the COLOR BAL B, and/or the

TINT settings, etc.

Pictures appear

dark

The brightness setting and/or contrast

setting has not been properly adjusted.

Perform picture adjustments by changing the

BRIGHT and/or CONTRAST settings, etc.

The WHISPER mode is the current

setting.

Change (by releasing) from the

WHISPER mode.

Lamp is approaching the end of its

product lifetime.

Exchange the old lamp with a new

lamp.

33, 34

Pictures appear

blurry

Either the FOCUS setting or the H

PHASE is not properly adjusted.

Adjust the FOCUS and H PHASE settings.

16, 27

Input signal changes

with no-operation.

INPUT dial is set between the click

points.

Turn the INPUT dial and set it at the

click point.

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3m MP8790 Seite 41

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