Mitsumi electronic WD3300U Troubleshooting continued, No image appears on the screen. continued

Troubleshooting (continued)

No image appears on the screen. (continued)

Problem	Solution
“NO SIGNAL” is	• Turn on the power of the connected device, or check whether there is something
displayed.	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 amplifier along with the extension cord.

Images are not displayed correctly.

Problem	Solution
Projected images are	• Check that the cable connected to the external device isn’t intermittent.
shaking.	• Connect the cable’s plug with the external device’s connector firmly.
Projected images are	• Project an image containing many characters such as a help menu and press the
displaced.	AUTO POSITION button.
	• Some computers output out-of-spec signals on rare occasion. Adjust the SIGNAL
	menu. (See pages 35 and 36.)
Projected images are	• Adjust the projector and the screen so that they are perpendicular to each other. (See
distorted.	page 11.)
Projected images are	• Adjust BRIGHTNESS and CONTRAST in the QUICK MENU or IMAGE menu. (See
dark.	page 33.)
	• Replace the lamp. (See page 42.)
Projected images are	• Adjust the focus. (See pages 16 and 23.)
blurred.	• Clean the lens.
	• Press the  or  button on the remote control to eliminate flicker.
	• Adjust TRACKING and FINE SYNC. in the SIGNAL menu. (See page 36.)
	• Adjust BRIGHTNESS and CONTRAST in the QUICK MENU or IMAGE menu. (See
	page 33.)
	• Adjust the projector and the screen so that they are perpendicular to each other. (See
	page 11.)
White dots are seen	• This symptom is normal for a DLP™ projector and is not a malfunction. (A very small
on projected images.	number of pixels may stay lit or out, but such symptom is not a malfunction. Pixels of
Black dots are seen	99.99% or more are effective.)
on projected images.
Rainbow effect is seen	• This is due to color breaking noise that occurs in a DLP™ system and is not a
on projected images.	malfunction.
Fine streaks are seen	• This is due to interference with the screen surface and is not a malfunction. Replace
on projected images.	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.
Projected images	• Connect the plugs of the cables to external devices securely.
become wavy.	• Keep the projector away from devices that emit interfering radio waves.
	• When the keystone adjustment is carried out, the image may not be displayed
	correctly depending on the type of input signal. This isn’t a product malfunction. In
	this case, readjust the keystone so that the amount of keystone correction is as small
	as possible.
Hue is not appropriate.	• Check that the cables connected to the external devices are not broken.
Tint in projected	• Check that COMPUTER INPUT in the SIGNAL menu is correctly set. (See page 32.)
images is incorrect.	• Check that the cable connected to the external device isn’t broken.

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