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INF-21
SECTION 1 SERVICE INFORMATION
5. Notes on service
5. 1. Before service operation
5. 1. 1. LCD panel
1. The display unit of this projector comprises three LCD panels. Although an LCD panel is a product of high-precision tech-
nology, some of the pixels on the image may be missing or constantly lit. Please note that this is not a failure.
2. Displaying a still image for a longer time may result in an after-image on the LCD panels. If this happens, display the all
white screen in the test pattern for an hour or more.
5. 1. 2. Lamp
1. The light source of the projector is a high-pressure mercury lamp.
2. A high-pressure mercury lamp has the following characteristics.
• The luminance of the lamp will decrease by duration of usage.
• The lamp may burst with a loud sound or have its service life shortened because of shock, chipping, or degradation due to
cumulative runtime.
• The lamp life varies greatly depending on individual differences and usage conditions. In particular, continuous use for 12
hours or more and frequent off/on switching of the power greatly deteriorate the lamp and affects the lamp life.
• In rare cases, the lamps burst shortly after projection starts.
• The risk of bursting increases when the lamp is used beyond its replacement cycle. Make sure to replace the lamp unit
regularly.
(Refer to items “When to replace the lamp unit”, “How to replace the lamp unit”)
• If the lamp bursts, gas contained inside of the lamp is released in the form of smoke.
• It is recommended that you store the Replacement Lamp Unit as a contingency
Replacement lamp unit : ET-LAE300
Note
* Panasonic takes no responsibility for any damage or malfunction of the
product resulting from use of lamp units which are not manufactured by
Panasonic. Use only specified lamp units.
Attention * Please be sure to read the warnings and notices on the lamp that is
described in the Operating Instructions. "Read this first!", "Precautions for
use", "Maintenance/replacement"
5. 1. 2. Air filter unit
1. Make sure that the air filter unit is properly attached before using the projector. If it is not
properly attached, the projector will suck in dirt and dust causing a malfunction.
2. The cleaning and replacement cycle of the air filter unit varies depending on the usage
environment.
Replacement air filter unit : ET-RFE300
5. 1. 3. Lithium battery
1. The lithium battery is used for the internal clock in the A-P.C.Board. So when it consumed it must be replaced.
Lithium battery : CR2032
* Use only specified lithium battery.
* Used battery must be scrapped according to the instruction.
2. After replacing the lithium battery, surely set the "Date and Time" on the sub-menu in the main menu "projector set up".
INF-22
SECTION 1 SERVICE INFORMATION
5. 2. Service
5. 2. 1. Supporting Methods
The basic service policy is shown below.
Repair contents
Applied parts
Block replacement
P.C.Board replacement
- Analyses block (* Specified components are replaced)
- Optical Block
- [P]-P.C.Board (Specified components are replaced)
- [BQ]-P.C.Board
- Iris unit
- Mechanical shutter
Replaced by discrete components
Other electrical parts and mechanism parts
5. 2. 2. Repair
1. Since very strong light is leakage from the surroundings of optical block, when checking or adjusting the projector with top
cabinet removal, ware the UV protection glasses to protect the UV light.
2. Before repairing, make sure to turn off the main power and disconnect the power plug from the power outlet.
* When replacing the print board, the internal electrical parts can be broken by the static electricity of clothes or human
body. Please take care in static electricity, use an antistatic wrist strap or wear the anti-static electricity gloves.
3. After repairing, please check the gradation (10step or the gray scale) test pattern or moving image.
Also, please check that it is normal on a self check screen.
5. 2. 3. Interlock detection
The lamp cover switch detects whether the lamp cover is mounted securely.
When the lamp cover is mounted securely, the interlock switch (SW1001) on the [A]-P.C.Board turns on.
5. 2. 4. Replacement of A-P.C. board
1. When the replacement of [A]-P.C.Board (assembly) is needed, back up the memory information such as adjustment data
from the old board to PC with the service software. Then transfer this data to the new [A]-P.C.Board.
For more information refer to the SECTION 3 "Adjustment".
* Down load the service software from Projector service web site.
2. When [A]-P.C.Board is replaced, the MAC address of wired LAN will be changed. Explain it to the customers in advance.
Interlock switch (SW1001)
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
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