Mitsubishi Electric HC7000 User Manual download pdf (Page 41)

EN-41

No image appears on the screen. (continued)

Problem Solution

The screen for

entering the password

appears.

PASSWORD FUNCTION in the FEATURE menu has been set to DISPLAY INPUT to

enable the password lock.

Enter the password or contact the person in charge of management of the

projector. (See page 35.)

•

“NO SIGNAL” is

displayed.

Turn on the power of the connected device, or check whether there is something

wrong with the connected device.

Check whether the external device output signals. (Check this especially when the

external device is a notebook computer.)

Check that the cable connected to the external device isn’t defective.

Check that the projector is connected to the external device using the correct

terminals.

Check that the connected device is correctly selected as the input source.

When an extension cord is being used, replace it with the supplied cable and check

whether images are projected correctly. If images are projected correctly, use an RGB

signal ampliﬁ er along with the extension cord.

•

Images are not displayed correctly.

Problem Solution

Projected images are

shaking.

Projected images are

displaced.

Check that the cable connected to the external device isn’t intermittent.

Connect the cable’s plug with the external device’s connector ﬁ rmly.

Press the AUTO POSITION button.

Some computers output out-of-spec signals on rare occasion. Adjust the SIGNAL

menu. (See page 34.)

•

Projected images are

distorted.

Adjust the projector and the screen so that they are perpendicular to each other. (See

page 10.)

•

Projected images are

dark.

Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 31.)

Replace the lamp. (See page 36.)

•

Projected images are

blurred.

Adjust the focus. (See pages 18 and 23.)

Clean the lens.

Press the W or X button on the remote control to eliminate ﬂ icker.

Adjust TRACKING and FINE SYNC. in the SIGNAL menu. (See page 34.)

Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 31.)

Adjust the projector and the screen so that they are perpendicular to each other. (See

page 10.)

•

Afterimages persist on

the screen.

This phenomenon is improved by keeping projecting an evenly dark image. (Such

“image burn-in” phenomenon where afterimages persist on the screen may occur if a

stationary image is kept displayed on the screen for a long time.)

•

Red, blue, and

green dots appear in

projected images.

Black dots appear in

projected images.

This phenomenon is unique to LCD projector and isn’t a product malfunction.

(A small number of pixels always stay on or off, which are not malfunctions. More than

99.99% of the pixels are effective.)

•

Fine streaks are seen

on projected images.

This is due to interference with the screen surface and is not a malfunction. Replace

the screen or displace the focus a little.

Vertical or horizontal streak noise may appear on the projected image, depending on

the type of the DVD player or game console you use. In such a case, you can reduce

such streak noise by enabling the LPF. (See page 29.)

•

Projected images

become wavy.

Connect the plugs of the cables to external devices securely.

Keep the projector away from devices that emit interfering radio waves.

•

Hue is not appropriate. Check that the cables connected to the external devices are not broken.•

Tint in projected

images is incorrect.

Check that COMPUTER INPUT in the SIGNAL menu is correctly set. (See page 29.)

Check that the cable connected to the external device isn’t broken.

•

Troubleshooting (continued)

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Mitsubishi Electric HC7000 User Manual Page 41

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