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INF-23
SECTION 1 SERVICE INFORMATION
5. 3. Replacement of consumable parts
[Attention] • When replacing the consumable parts, please make sure that the power cable is disconnected from the outlet.
5. 3. 1. When to replace the lamp unit
The lamp unit is a consumable component. Since its brightness gradually decreases over time, it is necessary to replace the
lamp unit regularly. The estimated duration before replacement is 4 000 hours, but the lamp may go off before reaching to
4000 hours, depending on the characteristics of the individual lamp, usage conditions, and the installation environment. It is
recommended that the Replacement Lamp Unit be prepared earlier.
On screen display
REPLACE LAMP
LAMP indicator
On screen display
REPLACE LAMP
LAMP indicator
Over 3 800 hours
The message is displayed for 30 seconds. Pressing
any button on the control panel or remote control
within 30 seconds will clear the message.
The indicator lights in red even during the
standby mode.
Over 4 000 hours The message remains displayed until you press any
button.
If you continue to use the lamp unit after 4 000 hours has elapsed, the lamp turns off automatically after approximately 10
minutes, as it may cause malfunction of the projector.
Note
• To predict when to replace the lamp, check the lamp runtime displayed at [LAMP : TOTAL] in [STATUS].
• 4 000 hours is only the target for replacement and not the warranty time.
5. 3. 2. Calculation formula of lamp runtime
The lamp runtime that is displayed in the [STATUS] is real time.
The following conversion is required to calculate the rough estimate for lamp replacement.
Formula for lamp replacement time (rough estimate)
Lamp runtime displayed
in [LAMP : TOTAL]
(A x 9 + B x 8) ÷ 9
• A: Actual runtime when [LAMP POWER] is set to [AUTO] and [NORMAL] ( = Runtime
displayed in [LAMP : NORMAL])
• B: Actual runtime when [LAMP POWER] is set to [ECO] ( = Runtime displayed in [LAMP
:ECO])
5.3.5. Optical block type check
There are 2 types of optical block, named R-type and L-type.
When replacing the optical block, check the printed marker on the flat cable of the G-LCD panel and use the same type of the
optical block. If not used the same type, you will find the color shading or wrong white balance picture on the screen.
GL
GR
• GL => Use A-type optical block
• GR => Use B-type optical block
B-Type optical block
A-Type optical block
INF-24
SECTION 1 SERVICE INFORMATION
5. 3. 3. Notes on the replacement of the lamp unit
Warning
Replace the lamp unit after the lamp has cooled (after waiting at least one hour).
The high temperature inside the cover will cause burns.
• A Phillips screwdriver is necessary when replacing the lamp unit.
• Since the luminous lamp is made of glass, it may burst if dropped or hit with a hard object. Handle with care.
• Do not disassemble or modify the lamp unit.
• When replacing the lamp unit, be sure to hold it by the handle because its surface is pointed and its shape is protruded.
• The lamp may rapture. Replace the lamp unit carefully so the glass fragments of the lamp do not scatter. While attaching the
projector to the ceiling, do not work right under the lamp unit or do not conduct work while your face is near the lamp unit.
• The lamp contains mercury. When disposing of used lamp units, contact your local authorities or dealer for correct methods
of disposal.
5. 3. 4. Replacement procedure for lamp unit
Attention
• While attaching the projector to the ceiling, do not work right under the lamp unit
or do not conduct work while your face is near the lamp unit.
• Do not remove or loosen the screws other than specified ones when replacing the
lamp unit.
• Make sure to attach the lamp unit and the lamp cover securely.
• If the lamp unit is not installed properly, remove it and then push it in slowly. Push-
ing it in quickly or forcibly may break the connector.
1) Set the <MAIN POWER> switch to <OFF> and disconnect the power plug
from the power outlet.
• Wait at least one hour and check if the lamp unit has cooled down.
2) Remove the lamp cover. (Fig. 1)
• Use a Phillips screwdriver to turn the lamp cover fixing screw (x1) counterclock-
wise until it turns freely, and slide the lamp cover slowly in the direction of the
arrow to remove it.
• Opening the lamp cover quickly may result in falling.
3) Remove the lamp unit. (Fig. 2)
• Use a Phillips screwdriver to turn the lamp unit fixing screws (x3) coun-
terclockwise until they turn freely, and remove the lamp unit.
• Hold the handles of the lamp unit and remove it straight.
4) Push in the new lamp unit while paying attention to the insertion
position.
• If the lamp unit is not installed properly, remove it and then push it in
slowly. Pushing it in quickly or forcibly may break the connector.
5) Use a Phillips screwdriver to firmly tighten the lamp unit fixing
screws (x3).
• Make sure to attach the lamp unit securely.
6) Attach the lamp cover.
i) Perform Step 2) in the reverse order to attach the lamp cover.
ii) Use a Phillips screwdriver to firmly tighten the lamp cover fixing
screw (x1).
• Make sure to attach the lamp cover slowly and securely.
Note
• When you replace the lamp unit with new one, the projector resets the runtime of the lamp unit automatically
Lamp cover
Lamp cover fixing screw
Fig. 1
Lamp unit fixing screws
Lamp unit
Handles
Fig. 2
INF-25
SECTION 1 SERVICE INFORMATION
5. 3. 5. Air filter maintenance
Perform maintenance of the air filter in the following case.
• The air filter is clogged with dust, causing the filter replacement message to appear on the screen and the filter indicator
<FILTER> to light in red.
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 damaged even
if you drop the air filter unit.
5. 3. 6. Cleaning procedure for Air filter unit
Air filter cover
Air filter fixing screw
Tabs on the projector
Air filter unit
Air filter unit compartment and
the projector’s air intake port
Fig. 1
Fig. 2
Fig. 3
1) Remove the air filter cover. (Fig. 1)
• Use a Phillips screwdriver to turn the air filter cover fixing screw (x1) counterclockwise until it turns freely, and gently pull
open in the direction of the arrow with your finger placed on the indent of the air filter cover and remove the cover.
• When pulling open the air filter cover, be sure to firmly hold the air filter cover with your hand. Opening the air filter cover
quickly may result in the cover falling.
2) Remove the air filter unit.
• Pull out the air filter unit from the tabs of the projector while slightly pressing the tab at the center of the frame at the con-
necting terminal side (rear side) inward as shown by the arrow, and remove the air filter unit. (Fig. 2)
• After pulling out the air filter unit, remove foreign objects and dust from the air filter unit compartment and the projector’s
air intake port if there are any. (Fig. 3)
Fig. 4
Fig. 5
3) Wash the air filter unit. (Fig. 4)
i) Soak the air filter unit in cold or warm water and then lightly rinse it.
• Do not use cleaning tools such as brushes.
• When rinsing, hold the frame of the air filter unit without putting strong pressure on the filter.
ii) Rinse the air filter unit two to three times using fresh water each time.
• Insufficient rinsing may result in odors.
4) Dry the air filter unit. (Fig. 5)
• Let the air filter unit naturally dry off in a well-ventilated place where there is little dust and is not exposed to direct sun-
light.
• Do not dry using drying devices such as dryers.
• After the air filter unit is dried, proceed to “Attaching the air filter unit”.
5) Attach the air filter unit to the projector.
• Perform Step 2) in the reverse order.
• Push in the air filter unit securely until it clicks into place.
6) Attach the air filter cover.
• Perform Step 1) in the reverse order to close the air filter cover, and push in the air filter cover securely until it clicks
into place.
• Use a Phillips screwdriver to firmly tighten the air filter cover fixing screw (x1).
INF-26
SECTION 1 SERVICE INFORMATION
5. 4. Initialization for control device password
Take the procedure below to restore the factory default password (AAAA).
1. Press the [AUTO SETUP] button on the remote control or the [INPUT SELECT] button and the [▲] button on the control
panel of projector at the same time for more than 2 seconds while the control device password input request menu is dis-
played on the screen.
2. Press the [▼] button for more than 2 seconds.
The password will be initialized.
Attention
• After washing the air filter unit, dry it thoroughly before attaching it back to the projector. Attaching a wet unit will cause an
electric shock or malfunction.
• Do not disassemble the air filter unit.
• 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
• If you use the projector without attaching the air filter unit, the filter indicator <FILTER> flashes in red and the message ap-
pears on the projected image for approximately 30 seconds.
• Replace the air filter unit with the new optional Replacement Filter Unit if it is damaged or if the dirt does not come off even
after washing.
• Air filter replacement is recommended after cleaning the unit two times.
• The dust-proof properties may be reduced after each cleaning.
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