Panasonic PT-LB305, Руководство по эксплуатации, Страница: 104 / 119

104 - ENGLISH
Troubleshooting
Please check following points. For details, see the corresponding pages.
Problem Cause
Reference
page
Power does not turn
on.
f
The power cord may not be connected.
f
No electric supply is at the wall outlet.
f
The circuit breakers have tripped.
f
Is the power indicator <ON(G)/STANDBY(R)> or the warning indicator
<WARNING > indicator lit or blinking?
f
The lamp cover has not been securely installed.
—
—
—
97
103
No picture appears.
f
The video signal input source may not be connected to a terminal properly.
f
The input selection setting may not be correct.
f
The [Brightness] adjustment setting may be at the minimum setting.
f
The input source which is connected to the projector may have a problem.
f
The AV mute function may be in use.
34
42
58
—
47
The picture is fuzzy.
f
The lens focus may not have been set correctly.
f
The projector may not be at the correct distance from the screen.
f
The lens may be dirty.
f
Is the relative position between the projector and the screen set properly?
43
31
20
—
The color is pale or
grayish.
f
[Color] or [Tint] adjustment may be incorrect.
f
The input source which is connected to the projector may not be adjusted
correctly.
f
The RGB signal cable is damaged.
59
—
—
No sound from the
internal speaker.
f
The external device may not be connected correctly to the audio input terminal.
f
The volume may have been set to the minimum level.
f
The AV mute function may have been turned on.
f
The Mute function may have been enabled.
f
When the VARIABLE AUDIO OUT is plugged-in, the projector's built-in speaker
is not available.
34
48, 63
47
48, 63
35
The remote control
does not operate.
f
The batteries may be weak.
f
The batteries may not have been inserted correctly.
—
28
f
The remote control signal receptor on the projector may be obstructed. 24
f
The remote control unit may be out of the operation range. 24
f
Strong light such as fluorescent shine onto the signal receptor. 24
f
Is the operation of the remote control set to disabled in [Key lock] of the [Setting]
menu?
62
f
When different codes are set on the projector and on the remote control. 49
The control buttons of
the projector do not
operate.
f
Is the operation of the control panel set to disabled in [Key lock] of the [Setting]
menu?
62
The picture does not
display correctly.
f
There may be a problem with the VCR or other signal source.
f
A signal which is not compatible with the projector is being input.
f
Is the setting of the computer output correct?
—
110
—
Picture from a
computer does not
appear.
f
The cable may be longer than the optional cable.
f
The external video output from a laptop computer may not be correct.
—
—
Picture from a HDMI
device does not
appear or picture is
not stable.
f
Is the HDMI cable securely connected?
f
Turn off the power of the projector and the connected devices. Then turn the
power of the projector and the connected devices back on.
f
Isn't unsupported signal cable connected?
34
—
110
No sound is output
from a HDMI device.
f
Set the sound channel of the attached device to Linear PCM. —
f
Connect the computer to the <HDMI IN> terminal through the HDMI-DVI
conversion cable, set [Sound] of [HDMI Setup] to [Computer], and then input the
analog audio signal to the <AUDIO IN 1> terminal.
36, 64
The mark appears
on the screen.
f
To inform that the projector cannot execute the operation. Check the connections
and the input signals, then operate correctly.
—
Attention
f
If the problem persists, after confirming the contents of the table, please consult your dealer.
Chapter 6 Maintenance - Troubleshooting