Fujitsu P42HHA40U, P42HHA40A Cleaning And Maintenance, Before Obtaining Service, Precautions

CLEANING AND MAINTENANCE

Precautions

Be sure to remove the power plug from the receptacle before cleaning the display.

Be sure not to clean the display using a cloth dampened with volatile solvents, such as benzene or thinner. Such solvents can harm the display’s cabinet, the filter at the screen front, and the remote control. They can also cause paint to come off these sections.

Cleaning the Screen

Clean the screen gently with a soft cloth.

The screen surface is fragile. Never attempt to clean it with a hard material, press on it forcefully, or tap it.

Cleaning the Cabinet and Remote Control

Use a soft cloth for cleaning.

If the cabinet or remote control is heavily stained, soak a soft cloth in a mixture of water and detergent and squeeze it dry before wiping off the stains. Use a soft, dry cloth for final cleaning.

Cleaning the ventilation grille

Remove dust from the ventilation grille in the rear of the main unit periodically with a vacuum cleaner as the accumulated dust can increase the internal temperature of the main unit causing machine failure or fire hazard.

BEFORE OBTAINING SERVICE

In the event of problems with the display, check the following explanations before contacting your dealer for servicing.

Problem	Action
• Power does not turn ON.	• Check whether the power plug is securely inserted into the receptacle.
• No pictures are displayed.	• Check cables for disconnection.
	• Check whether the power for all input equipment is ON.
	• Check for connection to wrong terminals or for wrong input mode.
	• Check whether the input mode display is colored pink.Special setup may have been made.
	Return to original setup or initialize the User adjustment value.
• Remote control does not function prop-	• Check for incorrect battery orientation.
erly.	• Check for dead batteries.
	• Check for distance from the display.
	• Check whether you are pointing the remote control transmitter properly at the display’s
	receiver.
	• Check for any obstacle between the remote control and the display.
• The display makes a snapping sound.	• This sound is produced when the cabinet expands or contracts due to variations in temper-
	ature. This sound does not indicate that the display has a problem.
• The display makes a buzzing sound.	• The display has fans to maintain the temperature of internal components at a constant
	level. This sound is produced by the fan as it rotates. (Applies to models equipped with a
	fan)
• There are spots on the screen.	• Check whether your AV equipment is affected by interference from automobiles, trains,
	high-voltage transmission lines, neon signs or other potential sources of interference.
• Degraded colors/tints	• Check whether all picture adjustments have been properly made.
	(See “Adjusting Pictures” on P. E-21–E-26.)
• Improper screen position/size	• Check whether screen position and size have been properly adjusted.
	(See “Adjusting Screen Position and Size” on P. E-27.)
• No audio	• Check cables for disconnection.
	• Check whether the proper audio input has been selected.
	(See “Audio Input” on P. E-32.)
• If “Out of range” appears, the display is	• Signals that are not supported by this display have been input. Check which signals are
receiving a signal whose picture or signal	supported. (See the user’s manual (1/2).)
cannot be reproduced by the display.
• The screen turns to black and white.
• If “Error message Condition 1” appears,	• Remove the power plug from the receptacle, and contact your dealer for repairs.
the fan is defective.	(Applies to models equipped with a fan)
• If “Error message Condition 2” appears,	• Remove the power plug from the receptacle. (You can turn the power back ON again
the display’s internal components are	when the components have cooled sufficiently.) If the message appears again when you
extremely hot.	turn the power back on, remove the power plug from the receptacle, and contact your
	dealer for a repairs.
• If “Change refresh rate to 60Hz” appears,	• The picture may get blurred with vertical frequency of other than 48.3-51.8 or 58.4-61.4
	(Hz). Change the setting of your PC, etc.
• If the power indicator lamp flashes red or	• Remove the power plug from the receptacle, and inform your dealer about how the lamp
green.	flashed.
	The power indicator lamp flashes differently depending on the type of problem.

Note

• Functions may not be available with some models and some device options.

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