Panasonic PT-L735NTE, PT-L735E Before calling for service, Cleaning and maintenance, Care

Before calling for service

Before calling for service, check the following points.

Problem	Possible cause	Page
Power does not	BThe mains lead may not be connected.	–
turn on.	BThe MAIN POWER switch is turned off.	–
	BThe main power supply is not being supplied to the	–
	mains socket.
	BTEMP indicator is illuminated or flashing.	52
	BLAMP indicator is illuminated or flashing.	53
	BThe lamp unit cover has not been securely installed.	–
No picture	BThe video signal input source may not be	–
appears.	connected properly.
	BThe input selection setting may not be correct.	24
	BThe BRIGHT adjustment setting may be at the	38
	minimum possible setting.
	BThe shutter function may be in use.	28
The picture is	BThe lens cover may still be attached to the lens.	–
fuzzy.	BThe lens focus may not have been set correctly.	24
	BThe projector may not be at the correct distance	19
	from the screen.
	BThe lens may be dirty.	–
	BThe projector may be tilted too much.	19
COLOR is too	BCOLOR or TINT adjustment may be incorrect.	38
light or TINT is	BThe input source which is connected to the	–
poor.	projector may not be adjusted correctly.
No sound can	BThe audio signal source may not be connected properly.	–
be heard.	BThe volume adjustment may be at the lowest	29,
	possible setting.	44
	BA cable may be connected to the AUDIO OUT jack.	20,
		21
	BThe MUTE function may be active.	44
The remote	BThe battery may be weak.	–
control unit	BThe battery may not be inserted correctly.	22
does not	BThe remote control signal receptor on the projector	22
operate.	may be obstructed.
	BThe remote control unit may be out of the	22
	operation range.
The buttons on	BThe CONTROL KEY may be set to “OFF”.	47
the projector do	In order to set the CONTROL KEY to “ON” without
not function.	using the remote control unit, keep holding down
	the ENTER button on the projector and press the
	MENU button for more than 2 seconds. It will then
	be turned ON.

Problem	Possible cause	Page
The picture does	BThe signal format (TV system) may not be set	38
not display	correctly.
correctly.	BThere may be a problem with the video tape or	–
	other signal source.	62
	BA signal which is not compatible with the projector
	may be being input.
Picture from	BThe cable may be too long.	–
computer does	BThe external video output for the laptop computer	–
not appear.	may not be set correctly.
	(You may be able to change the external output
	settings by pressing the [Fn]+[F3] or [Fn]+[F10]
	keys simultaneously. The actual method varies
	depending on the type of computer, so refer to the
	documentation provided with your computer for
	further details.)
	BIf an RGB input indicator is turned off, the video	14,
	signals may not be output from the computer.	26
	BRGB2 SELECT in the OPTION menu is set to	45
	OUTPUT when the signals are input to RGB2 IN /
	RGB1 OUT connector.

Cleaning and maintenance

Before carrying out cleaning and maintenance, be	maintenance
sure to disconnect the mains lead plug from the
mains socket.
Wipe the cabinet with a soft, dry cloth.	and
If the cabinet is particularly dirty, soak the cloth in water with a small amount
of neutral detergent in it, squeeze the cloth very well, and then wipe the	Care
cabinet. After cleaning, wipe the cabinet dry with a dry cloth. If using a
chemically-treated cloth, read the instructions supplied with the cloth before

use.

Do not wipe the lens with a cloth that is dusty or which produces lint. If any dust or lint gets onto the lens, such dust or lint will be magnified and projected onto the screen. Use a blower to clean any dust and lint from the lens surface, or use a soft cloth to wipe off any dust or lint.

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