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75
Maintenance
Troubleshooting
Please check following points. For details, see the corresponding pages.
Problem Cause
Reference
page
Power does not turn
on.
The power cord may not be connected.
z
—
The <MAIN POWER> switch is turned off.
z
30
No electric supply is at the wall outlet.
z
—
The circuit breakers have tripped.
z
—
Is the <LAMP indicator>, <TEMP indicator>, or <FILTER indicator> lit or
z
blinking?
68, 69
The lamp cover has not been securely installed.
z
73
No picture appears.
The video signal input source may not be connected to a terminal
z
properly.
27
The input selection setting may not be correct.
z
32
The [BRIGHTNESS] adjustment setting may be at the minimum setting.
z
38
The input source which is connected to the projector may have a
z
problem.
—
The [AV MUTE] function may be in use.
z
32
The picture is fuzzy.
The lens focus may not have been set correctly.
z
31
The projector may not be at the correct distance from the screen.
z
22
The lens may be dirty.
z
14
The projector may be tilted too much.
z
—
The color is pale or
grayish.
[COLOR] or [TINT] adjustment may be incorrect.
z
39
The input source which is connected to the projector may not be
z
adjusted correctly.
—
RGB cable is damaged.
z
—
No sound from the
internal speaker
The input terminals may not have been correctly connected.
z
27
The volume may have been set to the minimum level.
z
34
The AV mute function may have been turned on.
z
32
A cable may have been connected to the “VARIABLE AUDIO OUT”
z
terminal.
19
Check the [AUDIO IN SELECT] [AUDIO SETTING].
z
61
The remote control
does not operate.
The batteries may be weak.
z
—
The batteries may not have been inserted correctly.
z
20
The remote control signal receptor on the projector may be obstructed.
z
17
The remote control unit may be out of the operation range.
z
17
Strong light such as uorescent shine onto the signal receptor.
z
17
[REMOTE CONTROLLER] of [CONTROL DEVICE SETUP] in
z
[SECURITY] menu is [DISABLE].
66
The remote control ID setting is incorrect.
z
20, 56
The control buttons
of the projector do
not operate.
The [CONTROL PANEL] may have been se to [DISABLE].
z
66
If you lost the remote control after making the [DISABLE] setting, press
z
the <ENTER> button while holding down the <MENU> button for 2
seconds on the main unit controls to reset the [ENABLE] setting.
66