Panasonic PT-LW330 / PT-LW280 / PT-LB360 / PT-LB330 / PT-LB300 / PT-LB280 (serv.man5) Service Manual ▷ View online
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Indicators
Power indicator
<ON (G)/
STANDBY (R)>
Warning
indicator
<WARNING>
Status
Cause
Solution
Off
Off
The power cord is unplugged.
--
--
Red
Lighting
Off
The power cord is unplugged.
--
--
The projector is in standby
mode after the cooling is
completed.
mode after the cooling is
completed.
--
--
Lighting
Lighting in red
The replacement time of the
lamp unit is displayed. (Standby
mode)
lamp unit is displayed. (Standby
mode)
The indicator lights up when
the usage time of the lamp unit
reaches 6,000 hours ([Lamp
control] is set to [ Eco1]).
reaches 6,000 hours ([Lamp
control] is set to [ Eco1]).
Replace the lamp unit
Lighting
Blinking in red
IIt has exceed the replacement
time of the lamp unit and
the projector is turned off
automatically.
time of the lamp unit and
the projector is turned off
automatically.
The indicator blinks when the
usage time of the lamp unit
reaches 6,600 hours ([Lamp
control] is set to [ Eco1]).
reaches 6,600 hours ([Lamp
control] is set to [ Eco1]).
Blinking
Off
The projector inside is cooling
down and after a while, the
projector is turned off. (The
projector will enter the standby
mode)
down and after a while, the
projector is turned off. (The
projector will enter the standby
mode)
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--
Circuit Protections
Before troubleshooting, please turn off the projector according to the "Turn Off Projector" part.
Warning Temperature and Power Off Protection
LED indicator
WARNING
indicator
ON (green)/STANDBY (red)
Indicators
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Power indicator
<ON (G)/
STANDBY (R)>
Warning
indicator
<WARNING>
Status
Cause
Solution
Green
Lighting
Off
Projecting
--
--
Lighting
Lighting in red
The replacement time of
the lamp unit is displayed.
(Projecting))
the lamp unit is displayed.
(Projecting))
Is the lamp replacement
warning icon
displayed when turn on or turn
off the projector?
off the projector?
The indicator lights up when the
usage time of the lamp unit
reaches 6 000 hours (when
[Lamp control] is set to
[ (Eco 1)]).
reaches 6 000 hours (when
[Lamp control] is set to
[ (Eco 1)]).
Replace the lamp unit.
Lighting
Blinking in red
It has exceeded the
replacement time of the
lamp unit and the projector
is turned off.
replacement time of the
lamp unit and the projector
is turned off.
The indicator blinks when the
usage time of the lamp unit
reaches 6,600 hours (when
[Lamp control] is set to
reaches 6,600 hours (when
[Lamp control] is set to
[ Eco1]).
Blinking
Off
The power cord is plugged and
the lamp is turned off. [Power
management] is set to [Ready].
the lamp is turned off. [Power
management] is set to [Ready].
--
--
Orange
Lighting
Off
The projector detects an
abnormal condition and cannot
be turned on. (Warning)
abnormal condition and cannot
be turned on. (Warning)
--
If the projector is turned off,
unplug the AC power cord
and contact the dealer.
and contact the dealer.
Lighting
Lighting
There is a problem in the
contrast shutter circuit for iris.
(Warning)
contrast shutter circuit for iris.
(Warning)
--
Turn off the projector, unplug
the AC power cord and
contact the dealer.
contact the dealer.
Flashing
Off
Internal temperature is high.
(Warning)
When the internal temperature
rises further and the air filter
warning icon
(Warning)
When the internal temperature
rises further and the air filter
warning icon
*1 is
displayed on the screen, after
a while the projector can be
turned off automatically.
a while the projector can be
turned off automatically.
Is the air intake/exhaust port
blocked?
Is the room temperature high?
Is the air filter unit clogged?
Remove any objects that
are blocking the air intake/
exhaust port.
exhaust port.
Install the projector in a
location with an ambient
temperature of 0 °C (32 °F)
to 40 °C (104 °F).
temperature of 0 °C (32 °F)
to 40 °C (104 °F).
Do not use the projector at
high altitudes of 2 700 m
(8 858') or higher above sea
level.
(8 858') or higher above sea
level.
Clean the air filter unit or
replace it.
*1 Regardless of the time which is set in [Expand] → [Filter counter], the air filter warning icon
is displayed due to the internal
temperature rising, and it will be displayed 10 seconds every 5 minutes if the temperature does not go down.
Note
If the warning indicator <WARNING> persists to light or blink after taking these measurements such as turn off the projector,
unplug the power cord, please contact your dealer for repair services.
If the power indicator <ON(R)/STANDBY(G)> persists to light or blink in orange after taking these measurements such as turn
off the projector, unplug the power cord, please contact your dealer for repair services.
Circuit Protections
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Maintenance
Fig.1
Tabs
Fig.2
Hook
Hook
J
Outer Case
Wipe off dirt and dust using a soft dry cloth.
● If the dirt is persistent, soak the cloth with water and wring it thoroughly before wiping. Dry off the projector with a
dry cloth.
● Do not use benzene, thinner, or rubbing alcohol, other solvents, household cleaners. Using them may cause
deterioration of the outer case.
● When using chemical treated dusters, follow its instruction.
J
Front glass surface of the lens
Wipe off the dirt and dust off the front surface of the lens with soft clean cloth.
● Do not use a cloth that has an abrasive surface or a cloth that is moist, oily, or covered with dust.
● Do not use excessive force when wiping the lens as it is fragile.
Attention
● The lens is made of glass. Impacts or excessive force when wiping may scratch its surface. Please handle with
care.
Before performing maintenance/replacement
When you perform maintenance or replacement of the parts, make sure to turn off the power and disconnect the
power plug from the wall outlet.
Be sure to observe the procedure "Powering Off the Projector" when performing power supply operation.
Maintenance
J
Air filter unit
Perform maintenance of the air filter in the following cases.
● If the time which is set in [Expand] menu → [Filter counter] is elapsed, the filter warning icon
will be
displayed.
● If the air filter is clogged with dust, the power indicator <ON(G)/STANDBY(R)> lights in orange.
Attention
● Make sure to turn off the power before performing maintenance on the air filter unit.
● Make sure that the projector is stable, and perform the maintenance in a safe place where the unit will not be
amaged even if you drop the air filter unit.
J
Removing the air filter unit
1) Remove the air filter cover. (Fig.1)
● Pull out the air filter cover from the hook of the projector while slightly pushing upward the tabs of the air filter
cover and open it in the direction of the arrow in figure.
2) Remove the air filter unit.
● The air filter unit is fixed by the 3 hooks. Grasp the fibre of the air filter unit near to the cover side with one hook and
then pull the air filter unit out from the air filter cover as arrow direction shown. (Fig.2)
● After removing the air filter unit, remove foreign objects and dust from the air filter compartment and the
projector's air intake port if there are any.
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J
Cleaning the air filter unit
Remove the air filter unit beforehand according to the previously described procedure in “Removing the air filter unit.
1) Clean the air filter unit.
● Vacuum dirt and dust from the air filter unit.
● Do not wash the air filter unit.
J
Attaching the air filter unit
1) Attach the unused air filter unit to the air filter cover.
● There is a distinction between the inside and outside of the air filter unit. Align the red mark on the air filter unit
with the red mark on the air filter cover.
● Insert the air filter unit to the side with the 2 hooks and then press the other side of the air filter unit into the cover
side with 1 hook to the air filter cover.
side with 1 hook to the air filter cover.
2) Attach the air filter cover to the projector.
● Perform Step 1) in “Removing the air filter unit”in the reverse order.
● Make sure that the air filter cover is closed tightly.
Maintenance
J
Resetting the filter counter
Be sure to reset the filter counter after cleaning the air filter unit.
1) Connect the power plug, press the power < > button on the control panel or on the remote control.
2) Press the <MENU> button to display the main menu, then press to select [Expand].
3) Press the <INPUT/ENTER> button on the control panel or the <ENTER> button on the remote control, then
press to select [Filter counter].
4) Press the <INPUT/ENTER> button on the control panel or the <ENTER> button on the remote control, then
press to select [Filter counter reset].
5) Press the <INPUT/ENTER> button on the control panel or the <ENTER> button on the remote control.
● The [Filter counter reset ?] confirmation message is displayed.
6) Press to select [Yes], then press the <INPUT/ENTER> button on the control panel or the <ENTER> button
on the remote control.
● The [OK?] screen is displayed.
7) Press to select [Yes], then press the <INPUT/ENTER> button on the control panel or the <ENTER> button
on the remote control.
● The filter usage time is 0 after reset.
Attention
● Do not disassemble the air filter unit.
● When attaching the air filter unit, make sure that the projector is stable, and work in an environment that is safe,
even in the event of the air filter unit dropping.
● Make sure that the air filter unit is properly attached before using the projector. If it is not attached, the projector
will suck in dirt and dust causing a malfunction.
Note
● After cleaning the air filter, reset the filter counter. Otherwise, the warning icon will appear on screen.
● Replace the air filter unit with the new optional Replacement Filter Unit (Model No.: ET-RFL300) if it is damaged
or if the dirt does not come off even after cleaning.
Air filter unit
Inside (Smooth fibre)
Outside (Cotton-like fibre)
Air filter cover
Air filter cover
Air filter unit
Red mark
Red mark
Hook
Hook
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