Sanyo PLC-XF47 User manual

FILE NO.
SERVICE MANUAL
REFERENCE NO. SM5110880-00
PRODUCT CODE :
PLC-XF47 KE3A 1 122 384 00 U.S.A., Canada
PLC-XF47 LE3A 1 122 385 00 Europe, Asia, Africa
PLC-XF47 LE3C 1 122 385 02 U.K.
Multimedia Projector
Give complete “CHASSIS NO." for
parts order or servicing, it is shown
on the rating sheet on the cabinet
of the Projector.
Chassis No. KE3-XF4700
NOTE: Match the Chassis No. on the rating
sheet on the cabinet with the Chassis
No. in the Service Manual.
If the Original Version Service
Manual Chassis No. does not
match the unites, additional Service
Literature is required. You must refer
to “Notices” to the Original Service
Manual prior to servicing the unit.
MODEL NO. PLC-XF47
U.S.A., CANADA
Europe, U.K.
Asis, Africa
(Projection lens is optional.)
Original Version

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■Safety Instructions ......................................................................................................................................3
■Technical Specifications............................................................................................................................4
■Circuit Protections.......................................................................................................................................5
■Security Function Notice ..........................................................................................................................9
■Lamp Replacement.................................................................................................................................. 10
■Maintenance and Cleaning................................................................................................................... 14
■Mechanical disassemblies..................................................................................................................... 17
■Optical unit disassemblies .................................................................................................................... 40
■Optical parts location and direction ....................................................................................... 51
■Chassis Block diagrams .......................................................................................................................... 55
■Troubleshooting ....................................................................................................................................... 57
■No Picture ......................................................................................................................................... 57
■No Power........................................................................................................................................... 62
■Temperature Abnormality .......................................................................................................... 68
■Power Lens System Abnormality.............................................................................................. 69
■Lamp Abnormality......................................................................................................................... 70
■Optical Adjustments ............................................................................................................................... 71
■Adjustments After Parts Replacement (Optical Parts)...................................................... 71
■Electrical Adjustments............................................................................................................................ 84
■Adjustments After Parts Replacement (Electrical Parts) .................................................. 84
■Service Adjustment Menu Operation..................................................................................... 85
■Circuit Adjustments....................................................................................................................... 86
■Service Mode Adjustment Menu.............................................................................................. 90
■Service Adjustment Data Table................................................................................................. 92
■Waveform ..................................................................................................................................................135
■Control Port Functions .........................................................................................................................136
■IC Block Diagrams ..................................................................................................................................141
■Parts List.....................................................................................................................................................148
■Mechanical and Optical Parts List ..........................................................................................148
■Electrical parts List.......................................................................................................................161
Drawings & Diagrams............................................................................................................ A1-A24
■Parts description and reading in schematic diagram ................................................................ A2
■Schematic Diagrams .................................................................................................................... A3-A12
■Printed Wiring Board Diagrams.............................................................................................. A13-A22
■Pins description of ICs, transistors, diodes.................................................................................. A23
■Note on Soldering ................................................................................................................... A24
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■Contents

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WARNING:
The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side of the con-
verter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is identified with the
line ( ) in the schematic diagram. For continued product safety and protection of personnel injury, servicing
should be made with qualified personnel.
The following precautions must be observed.
SAFETY PRECAUTIONS
1: An isolation transformer should be connected in the
power line between the projector and the AC line
before any service is performed on the projector.
2: Comply with all caution and safety-related notes pro-
vided on the cabinet back, cabinet bottom, inside the
cabinet or on the chassis.
3: When replacing a chassis in the cabinet, always be
certain that all the protective devices are installed
properly, such as, control knobs, adjustment covers or
shields, barriers, etc.
DO NOT OPERATE THIS PROJECTOR WITHOUT THE PROTE
CTIVE SHIELD IN POSITION AND PROPERLY SECURED.
4: Before replacing the cabinet cover, thoroughly inspect
the inside of the cabinet to see that no stray parts or
tools have been left inside.
Before returning any projector to the customer, the serv-
ice personnel must be sure it is completely safe to oper-
ate without danger of electric shock.
SERVICE PERSONNEL WARNING
Eye damage may result from directly viewing the light produced by the Lamp used in this equipment. Always turn off
Lamp before opening cover. The Ultraviolet radiation eye protection required during this servicing.
Never turn the power on without the lamp to avoid electric-shock or damage of the devices since the stabilizer gener-
ates high voltages (15kV - 20kV) at its starts.
Since the lamp is very high temperature during units operation replacement of the lamp should be done at least 45
minutes after the power has been turned off, to allow the lamp cool-off.
PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of the projector. Components
indicated by mark in the parts list and the schematic diagram designate components in which safety can be of spe-
cial significance. It is, therefore, particularly recommended that the replacement of there parts must be made by exactly
the same parts.
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
CAUTION
Not for use in a computer room as defined in the Standard for the Protection of Electronic Computer/Data Processing
Equipment, ANSI/NFPA 75.
Ne puet être utillisé dans une salle d’ordinateurs telle que définie dans la norme ANSI/NFPA 75 Standard for Protection
of Electronic Computer/Data Processing Equipment
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■Safety Instructions

- 4 -
■Technical Specifications
Mechanical Information
Projector Type Multi-media Projector
Dimensions (W x H x D) 22.87” x 9.921” x 32.11” (581 mm x 252 mm x 815.5 mm) (Not including adjustable feet)
Net Weight 80.3 lbs (36.5 kg)
Feet Adjustment 0˚ to 5.7˚
Panel Resolution
LCD Panel System 1.8”TFT Active Matrix type, 3 panels
Panel Resolution 1,024 x 768 dots
Number of Pixels 2,359,296 (1,024 x 768 x 3 panels)
Signal Compatibility
Color System PAL, SECAM, NTSC, NTSC4.43, PAL-M, and PAL-N
High Definition TV Signal 480i, 480p, 575i, 575p, 720p, 1035i, and 1080i
Scanning Frequency H-sync. 15 kHz–120 kHz, V-sync. 48 Hz–120 Hz
Optical Information
Projection Lamp 330 W NSHA lamp x 4
Interface
Input 1 DVI-D Terminal (Digital), D-Sub 15-pin Terminal (Analog)
Input 2 BNC Type x 5 (R/Pr, G/Y, B/Pb, H/HV and V), S-Video
Other Jacks Serial port in (D-sub 9), Serial port out (D-sub 9), USB port, and Wired Remote Jack
Power
Voltage and Power Consumption AC 240 V (9.7A Max. Ampere), 50/60 Hz (The U.S.A and Canada)
AC 200–240 V (9.7A Max. Ampere), 50/60 Hz (Continental Europe and The U.K.)
Operating Environment
Operating Temperature 41˚F–95˚F (5˚C–35˚C)
Storage Temperature 14˚F–140˚F (-10˚C–60˚C)
Remote Control
Battery AA or LR6 Type x 2
Operating Range 16.4’(5 m/±30˚)
Dimensions 1.97” (W) x 1.06” (H) x 6.61” (D) (50 mm x 27 mm x 168 mm)
Net Weight 4.6 oz (129 g) (including batteries)
Accessories
Owner’s Manual (CD-ROM)
Quick Reference Guide
AC Power Cord
Remote Control and Batteries
VGA cable
PIN Code Label
Lens Attachments (2 types) (For option lens)
Light Block Plates (3 types) (For option lens)
Cover Lens (For option lens)
Spacer (For option lens)
Real Color Manager Pro (CD-ROM)

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■Circuit Protections
This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the projector, it
will automatically turn off by operating one of the following protection circuits.
A fuse(F901) is located inside of the projector. When the
POWER indicator is not lighting, the fuse may be opened.
Check the fuse as following steps.
The fuse should be used with the following type;
●Fuse
How to replace the fuse
1. Remove the cabinet top following to "Mechanical
Disassemblies".
2. Remove the cover and the fuse from fuse holder.
To install the fuse, take reversed step in the above.
Fuse Part No.: 323 028 4202
TYPE 15.0A400V FUSE
SOC CORP. SHV14 15A N4
Fuse (F901)
Cover
Fuse
Holder
● AC Current Sensor
The AC Current Sensor is provided to prevent damage to the power supply circuits.
When AC input voltage is under 108V at MAINS SW ON, the AC Current Sensor will be operated and the CPU does not turn
the projector on, and both of READY and WARNING TEMP. indicators start flashing.
Check that the AC current sensor signal is correct. L : Abnormality
Hot circuit
AC-INPUT
MAINS SW NOISE FILTER CURRENT SENSOR
FUSE
SW901 LF901
F901
Z96W&A90
ASS'Y POWER
K96W

- 6 -
Circuit Protections
Lamp Cover switch
SW902
When the lamp cover is removed or no close completely,
the lamp cover switch (SW902) cuts off 12V_PFC line to
the PFC unit, and then a projector will be shut down.
After opening the lamp cover for replacing the lamp unit,
place the lamp cover correctly, otherwise the projector
can not be turned on.
Lamp Cover
●Lamp cover switch
●Power Failure Protection
Power failure protection diodes detect abnormal voltage on the power suply circuits or the fan operation stop.
When both of the WARNING TEMP. and READY Indicators are flashing:
READY
LAMP
LAMP REPLACE
WARNING TEMP.
WARNING
TEMP.
READY
LAMP
REPLACE
LAMP
FRONT INDICATORS
WARNING TEMP.
Indicator
READY
Indicator
READY
LAMP
LAMP REPLACE
WARNING TEMP.
WARNING
TEMP
.
READY
LAMP
REPLACE
LAMP
REAR INDICATORS
Temperature switches (SW 903~906)
are arranged near the four lamps.
Temperature switches will operate, if
temperature reaches 120 degrees.
Temperature switches
--- open at 120 degrees.
SW903 ---Lamp1
SW904 ---Lamp2
SW905 ---Lamp3
SW906 ---Lamp4
When temperature switches become
open, they cut off 12V_PFC line to PFC
(power factor control) unit, and then a
projector will be shut down.
●Temperature Check of Lamps
Temperature switch
SW906 (For Lamp4)
Temperature switch
SW905 (For Lamp3)
Temperature switch
SW903 (For Lamp1)
Temperature switch
SW904 (For Lamp2)
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When the projector detects an internal problem, it will shut down automatically
and both of the WARNING TEMP. and READY Indicators starts flashing. In this
condition, the projector cannot be turned on even if you press the POWER ON/
STAND-BY button on the remote control unit or on the side control. If this case
happenes, disconnect and reconnect the AC power cord, and then turn on the
projector again to check its operation. If the projector shuts down again or fails to
be turned on, the internal check and repair will be required.
Check items listed below;
●Power Failure Protection
●AC Current Sensor (See the previous page.)
●Temperature Check of Lamps
●Lamp Cover Switch

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Circuit Protections
READY
LAMP
LAMP REPLACE
WARNING TEMP.
WARNING
TEMP
.
READY
LAMP
REPLACE
LAMP
When the WARNING TEMP. Indicator is blinking red :
The WARNING TEMP. Indicator blinks red to let you know the internal temperature
of the projector exceeds the normal level. If the temperature goes up further, the
projector will be turned off automatically and the Ready indicator will go out. (The
WARNING TEMP. Indicator continues flashing.) After the cooling-off period, the READY
Indicator lights on again and the projector can be turned on by pressing the POWER
ON/STAND-BY button on the remote control unit or on the side control. When you
turn on the projector, the WARNING TEMP. Indicator will go out.
If the WARNING TEMP. Indicator is still flashing, check the followings;
●Installation
●Air Filter
●Temperature Monitor System
FRONT INDICATORS
WARNING TEMP.
Indicator
READY
LAMP
LAMP REPLACE
WARNING TEMP.
WARNING
TEMP
.
READY
LAMP
REPLACE
LAMP
REAR INDICATORS
This projector is equipped with cooling fans for protection
from overheating. Pay attention to following to ensure
proper ventilation and avoid a possible risk of fire and mal-
function.
- Do not cover vent slots.
- Keep bottom clear any objects. Obstructions may block cooling air.
When the air filter cleaning, clean the air intake vents simultaneously.
AIR INTAKE VENTS
EXHAUST VENTS
HOT AIR EXHAUSTED !
Air blown from exhaust vent is hot. When using or
installing a projector, following precautions should
be taken.
●Do not put flammable objects near these vents.
●Keep rear grills at least 3’ (1m) away from any object, especially
heat-sensitive object.
●Do not touch this area, especially screws and metallic parts.
This area will become hot while a projector is used. HOT
● Installation
● Air Filter
- Air filter is clogged with dust particles. Remove dust from the air filter by following instruction in the "Air filter care and
cleaning".
- Ventilation slots of the projector are blocked. In such case, reposition the projector so that ventilation slots are not
obstructed.
- Check if projector is used at higher temperature place (Normal operate is 5 to 35°C or 41 to 95°F)
- 7 -

- 8 -
Circuit Protections
■To control the driving power of the cooling fans.
This projector detects internal temperature and automatically controls operating power of cooling fans.
The CPU checks the temperature and atmospheric pressure inside a projector. It checks a temperature using tempera-
ture sensor-IC5801 and it checks an atmospheric pressure using pressure sensor-IC886.
The CPU controls the driving power of the cooling fans so the temperature inside the projector is maintained to normal
temperature.
■To shut down the projector.
The CPU checks temperature of Blue polarized glass (Z8P & TH) and inhalation air (IC5801). If each part temperature
reaches to abnormal temperature, the CPU will turn off a projector, and will blink WARNING TEMP. indicator at intervals
of 0.5 seconds. Cooling fans operate until temperature returns to normal. WARNING TEMP. indicator will stop blink, if
temperature returns to normal.
● Temperature Monitor System
Main Board
A-side
Front side
B-side
Temp. Sensor
IC2541
Temp. Sensor
(Inhalation air)
IC5801
Pressure Sensor
IC886
Temp. Sensor
(Blue polarized glass)
Z8P & TH
Temperature sensors location
Blue polarizer unit
- 8 -

■ Security Function Notice
This projector provides security functions such as "Key lock", "PIN code lock" and "Logo PIN code lock". When the projector has
set these security function on, you are required to enter correct PIN code to use the projector. If you do not know the correct
PIN code to the projector, the projector can no longer be operated or started. In this case, you must reset those function rst
according to the resetting procedure described below and then check up on the projector.
Function Description
Key lock
Locks operation of the side control or the remote control.
If the Key lock is enabled with side control lock, the projector can no longer
stated.
Initial setting : Key lock function is disabled
PIN code lock Prevents the projector from being operated by an unauthorized person.
Initial code : "1234"
Logo PIN code lock
Prevents an unauthorized person for changing the start up logo on the
screen.
Initial code : "4321"
Resetting procedure
1. Turn o the projector. (AC switch o.)
2. As pressing the "SELECT" button on the projector, turn on the projector again. (AC switch on.)
Keep pressing the "SELECT" button until the "READY" indicator lights continuously.
This is complete the resetting of the security function. The PIN code lock and Logo PIN code lock are reset as the initial
PIN code at the factory and Key lock function is disabled.
Please refer to the owner's manual for further information of the security functions.
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- 10 -
■Lamp Replacement
- 10 -
This Projector is equipped with 4 Projection Lamps to ensure brighter image and those lamps are controlled by the
Lamp Management Function. The Lamp Management Function detects the status of all lamps and shows the status on
screen or on the LAMP REPLACE indicator. This function also automatically controls the Lamp Mode when any of lamps
is out for the end of life or malfunctions.
Projection Lamp lights normally.
Lamp Replace Indicator
This LAMP REPLACE indicator lights orange when any of Projection Lamps is nearing its end, and flashes when any of
them becomes out. Check the number of lamp on the Lamp Status Display and the replace lamp.
Yellow Lamp
Dim Lamp
X Mark on Lamp
Red Lamp
LAMP REPLACE
INDICATOR
Projection Lamp is turned off.
Projection Lamp is nearing its end. When the image
becomes darker or the color becomes unnatural, replace
lamp. (LAMP REPLACE indicator lights orange.)
(LAMP REPLACE indicator flashes orange.)
Projection lamp is defective or fails to be turned on.
Restart a projector on, and make sure lamp is on. If this
mark still appears, replace lamp corresponding with
number marked X.
LAMP STATUS
DISPLAY
Lamp Mode Changeover
The Lamp Management Function automatically changes the combination of lighting lamp (Lamp Mode) by detecting the status of
lamp. When any of 4 lamps becomes out, the Lamp Mode is changed over from 4 lamps to 2 lamps. And when any of 2 lamps are
out, the projector operates with 1 lamp. The Lamp Mode can be switched to 4 lamps or 2 lamps manually.
4 LAMP MODE 2 LAMP MODE
(Example)
1 LAMP MODE
(Example)
Lamp Status Display
Lamp Status Display appears on screen when the power switch is on or changed input position (input 1, input 2, Input
3 or input 4). This shows the status of each lamp as; ON, OFF, NEAR END, or OUT. Refer to the following for each status.
Lamp mode
Lamp Management

LAMP REPLACEMENT
Lamp Replacement
WARNING :
TURN OFF THE UV LAMP BEFORE OPENING THE
LAMP COVER. USE UV RADIATION EYE AND SKIN
PROTECTION DURING SERVICING.
- 11 -
Check the number of lamp to be replaced on the Lamp Status
Display.
Remove the two screws on the Lamp Cover and press the
button to open the Lamp Cover. (See right figure.)
1
3
Loosen two screws and pull out the Lamp to be replaced by
grasping handle.
4
Turn off the projector and unplug the AC Power Cord. Let the
projector cool for at least 45 minutes.
2
Replace the Lamp with a new one and tighten two screws.
Make sure the Lamp is set properly.
6
Follow these steps to replace the lamp.
Put the Lamp Cover back and tighten two screws.
5
7
8
Connect the AC Power Cord to the projector and turn on the
projector.
Reset the Lamp Replacement Counter. (Refer to section
"Resetting the Lamp Counter" on next page.)
NOTE : Do not reset LAMP REPLACEMENT COUNTER when lamp is
not replaced.
BUTTON
SCREWS
LAMP
COVER
SCREWS
Make sure which number of lamp needs to be replaced
on Lamp Status Display.
Figure shows case of replacing LAMP 2.
LAMP 1
LAMP 2
LAMP 3
LAMP 4
CAUTION : DO NOT OPERATE A PROJECTOR WHILE ANY OF LAMPS IS REMOVED. IT MAY RESULT IN
MALFUNCTIONS, FIRE HAZARD, OR OTHER ACCIDENTS.
NOTES ON LAMP REPLACEMENT
To maintain quality of picture (better balance of color and brightness in entire screen), we recommend
replacing all 4 lamps at a time.
For continued safety, replace with a lamp assembly of
the same type.
Do not drop the lamp assembly or touch a glass bulb!
The glass can shatter and may cause injury.
Allow a projector to cool, for at least 45 minutes
before you open Lamp Cover. The inside of a
projector can become very hot.
CAUTION
When the projection lamp of the projector reaches its end of life, the Lamp replacement icon appears on the screen and
LAMP REPLACE indicator lights orange. Replace the lamp with a new one promptly. The timing when the LAMP REPLACE
indicator should light is depending on the lamp mode.
Indicators
LAMP REPLACE indicator
Lamp replacement icon
READY
✔Note:
• The Lamp replacement icon will not appear when the Display
function is set to “Off”, during “Freeze” , or “No show” .

ORDER REPLACEMENT LAMP
Replacement Lamp can be ordered through your dealer. When ordering a Projection Lamp, give the following
information to the dealer.
● Model No. of your projector : PLC-XF47
●Replacement Lamp Type No. : POA-LMP109
(Service Parts No. 610 334 6267)
Lamp Replacement
- 12 -
Be sure to reset the Lamp counter after the lamp is replaced. When the Lamp counter is reset, the LAMP REPLACE
indicator stops lighting and the Lamp replacement icon disappears.
✔Note:
• Do not reset the Lamp counter without replacing the lamp. Be sure to
reset the Lamp counter only after replacing the lamp.
Press the MENU button to display the On-Screen Menu. Use
the Point 7 8 buttons to move the red frame pointer to the
Setting Menu icon
Use the Point ed buttons to move the red frame pointer to
Lamp counter and then press the SELECT button. A dialog box
appears. Select a lamp and the “Lamp replacement counter
Reset?” appears. Select [Yes] to continue.
1
2
Lamp counter
Select a lamp and the “Lamp
replacement counter Reset?”
appears.
Select [Yes] again
to reset the lamp
counter.
Select [Yes], then another
confirmation box appears.
Another confirmation dialog box appears and select [Yes] to
reset the Lamp counter.
3
Resetting the Lamp Counter

This projector uses a high-pressure lamp which must be handled carefully and properly. Improper handling may
result in accidents, injury, or create a fire hazard.
●Lamp lifetime may differ from lamp to lamp and according to the environment of use. There is no guarantee of
the same lifetime for each lamp. Some lamps may fail or terminate their lifetime in a shorter period of time than
other similar lamps.
●If the projector indicates that the lamp should be replaced, i.e., if the LAMP REPLACE INDICATOR lights up, replace
the lamp with a new one IMMEDIATELY after the projector has cooled down.
( Follow carefully the instructions in the LAMP REPLACEMENT section of owner's manual. ) Continuous use of
the lamp with the LAMP REPLACE INDICATOR lighted may increase the risk of lamp explosion.
●A Lamp may explode as a result of vibration, shock or degradation as a result of hours of use as its lifetime draws
to an end. Risk of explosion may differ according to the environment or conditions in which the projector and
lamp are being used.
IF A LAMP EXPLODES, THE FOLLOWING SAFETY PRECAUTIONS SHOULD BE TAKEN.
If a lamp explodes, disconnect the projector’s AC plug from the AC outlet immediately. Contact an authorized
service station for a checkup of the unit and replacement of the lamp. Additionally, check carefully to ensure that
there are no broken shards or pieces of glass around the projector or coming out from the cooling air circulation
holes. Any broken shards found should be cleaned up carefully. No one should check the inside of the projector
except those who are authorized trained technicians and who are familiar with projector service. Inappropriate
attempts to service the unit by anyone, especially those who are not appropriately trained to do so, may result in an
accident or injury caused by pieces of broken glass.
LAMP HANDLING PRECAUTIONS
The LAMP REPLACE indicator will light yellow when the
total lamp used time (corresponding value) reaches 3.000
hours - (✽). This is to indicate that lamp replacement is
required.
The total lamp used time is calculated by using the below
expression;
Total lamp used time = Teco + Tnormal x 1.5 - (✽)
Teco : used time in the Eco mode
Tnormal : used time in the Normal and Auto mode
You can check the lamp replacement counter following to
below procedure.
1Press and hold POWER ON/STANBY button on the side
control of the projector or the remote control unit for
more than 20 seconds.
2 The projector used time and lamp used time will be dis-
played on the screen briefly.
(✽) The specifications are subject to change without
notice.
Counter
Projector
Lamp
Normal
Eco
Corresponding Value
Lamp1 Lamp2 Lamp3 Lamp4
250H
200H
50H 50H 50H 50H
100H
150H
100H 100H 100H
200H 200H 200H
Total lamp used time
(Corresponding value)
● How to check Lamp Used Time
Projector used time
Lamp Replacement
- 13 -

After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass, lens,
etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit.
Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean the optical
unit.
● Cleaning with air spray
1. Remove the cabinet top following to "Mechanical Disassemblies".
2. Clean up the LCD panel and polarized glass by using the air spray from the cabinet top opening.
Caution:
Use a commercial (inert gas) air spray designed for cleaning camera and computer equipment. Use a resin-based nozzle only. Be
vary careful not to damage optical parts with the nozzle tip. Never use any kind of cleanser on the unit. Also, never use abrasive
materials on the unit as this may cause irreparable damage.
● Disassembly Cleaning
Disassembly cleaning method should only be performed when the unit is considerable dirty and cannot be sufficiently
cleaned by air spraying alone.
Be sure to readjust the optical system after performing disassembly cleaning.
1. Remove the cabinet top and main units following to "Mechanical Disassemblies".
2. Remove the optical base top following to"Optical Unit Disassemblies". If the LCD panel needs cleaning, remove the LCD
panel unit following to "LCD panel/Prism ass'y replacement".
3. Clean the optical parts with a soft cloth. Clean extremely dirty areas using a cloth moistened with alcohol.
Caution:
The surface of the optical components consists of multiple dielectric layers with varying degrees of refraction.
Never use organic solvents (thinner, etc.) or any kind of cleanser on these components.
Since the LCD panel is equipped with an electronic circuit, never use any liquids (water, etc.) to clean the unit. Use of liquid
may cause the unit to malfunction.
■Maintenance and Cleaning
- 14 -

- 15 -
Unplug the AC power cord before cleaning.
Gently wipe the projection lens with a cleaning cloth that
contains a small amount of non-abrasive camera lens cleaner, or
use a lens cleaning paper or commercially available air blower to
clean the lens.
Avoid using an excessive amount of cleaner. Abrasive cleaners,
solvents, or other harsh chemicals might scratch the surface of
the lens.
Cleaning the Projector Cabinet
Unplug the AC power cord before cleaning.
Gently wipe the projector body with a soft dry cleaning cloth.
When the cabinet is heavily soiled, use a small amount of mild
detergent and finish with a soft dry cleaning cloth. Avoid using
an excessive amount of cleaner. Abrasive cleaners, solvents, or
other harsh chemicals might scratch the surface of the cabinet.
When the projector is not in use, put the projector in an
appropriate carrying case to protect it from dust and scratches.
Cleaning the Projection Lens
The projector uses a lamp which generates significant heat. The cooling fans and
air vents are provided to dissipate the heat by drawing air into the housing and
the filter is located in the intake vents to prevent dust from getting inside of the
projector.
In order to care for the projector appropriately, regular cleaning is required.
Remove any dirt or dust that has accumulated on the projector or in the filter.
If the projector reaches a time set in the timer setting, a Filter warning icon
appears on the screen.
Blocking the air vents and leaving the projector uncleaned for a long time may
not only damage the projector and may require costly repairs but may also cause
accidents or fire.
For maintenance of the filter, refer to “Filter counter”and “Maintenance and Care” .
Damages to the projector caused by using an uncleaned filter or improper
maintenance will void the warranty on the projector.
Caution : Filter Maintenance
Filter Warning icon
Maintenance and Ckeaning

- 16 -
Maintenance and Ckeaning
Turn off the projector, and unplug the AC power cord from the
AC outlet.
1
2
3
4
Pull out the air filter from the projector.
Clean the filter with brush out dust and particles.
Replace the air filter in a projector. AIR FILTER
AIR FILTER
CAUTION
Do not operate the projector with the Air Filter(s)
removed. Dust may accumulate on the LCD Panels
and Projection Mirrors degrading the picture quality.
Do not put anything into the air intake vents. Doing
so may result in a malfunction of the projector.
Failure to properly clean the projector's air filters
(in accordance with the instructions in your
Projector's Operating Manual, or more frequently
in any environment which is somewhat dusty or
smoky) could result in overheating and will void the
warranty on the projector.
✔Note:
• If the filter is heavily clogged and unable to
clean, replace it with new ones. Please consult
your dealer for details.
• Do not wash the filter with water or any other
liquid matter.
Air Filter Parts No. 610 334 1057
Filter prevents dust from accumulating on the optical elements inside the projector. Should the filter become clogged
with dust particles, it will reduce cooling fans’ effectiveness and may result in internal heat buildup and adversely affect
the life of the projector. If a “Filter warning” icon appears on the screen, clean the filter immediately. Clean the filter by
following the steps below.
Be sure to reset the Filter counter after cleaning or replacing
the filter.
Press the MENU button to display the On-Screen Menu. Use
the Point 7 8 buttons to move the red frame pointer to the
Setting Menu icon.
Use the Point ed buttons to move the red frame pointer to
Filter counter and then press the SELECT button.
A dialog box appears showing the Used time option and the
Scrolls remaining option. Use the Point ed buttons to select
Used time.
1
2
Filter counter
Select Reset and the “Filter
counter Reset?” appears.
Select [Yes],
then another
confirmation
box appears.
Select [Yes] again to reset the
Filter counter.
Another confirmation dialog box appears, select [Yes] to reset
the Filter counter.
3Used time shows the total accumulated time of the filter use,
a timer setting option, and the Reset option. Select Reset and
the “Filter counter Reset?” appears. Select [Yes] to continue.
4
AIR FILTER
Air lter Care and Cleaning
Resetting the Filter Counter

- 17 -
Before Disassemblies :
Turn off a projector and disconnect the AC power cord.
When remove the lens shift unit, shift to the position from which the attachment screws of a lens shift unit and an optical
base unit can be removed.
AA
Mechanical disassemblies
Disassemble should be made following procedures in numerical order.
Following steps show the basic procedures, therefore unnecessary step may be ignored.
Caution:
The parts and screws should be placed exactly the same position as the original otherwise
it may cause lose of performance and product safety.
The wiring method of the leads and ferrite cores should be returned exactly the same state
as the original otherwise it may cause lose of performance and product safety.
1-1 Cabinet front top unit and Cabinet front bottom unit removal.
1. Remove 2 screws-A. Upper part of cabinet top is pulled for-
ward and remove the cabinet front top upward.
Refer to Lens replacement and installation manual.
Screw
Screw
Lens shift unit is moved to the position
from which an attachment screws can be
removed, as shown in a figure.
Lens shift unit
Screws Expression
(Type Diameter x Length ) mm
T type M Type
Tapping screw Machine screw

- 18 -
1-2 Lens cover removal.
1. Remove the lens cover holder upward.
2. The hook of lens cover is released and remove the lens cover upward.
Refer to Lens replacement and installation manual.
Mechanical disassemblies
B
B
B
B
B
B
B
B
B
B
A
1-3 Cabinet front unit removal.
1. Remove screw-A and remove the shield Spacer upward.
2. Remove 10 screws-B and remove the Cabinet front unit.
Lens cover
Lens cover Holder
Shield Spacer
Cabinet front unit

- 19 -
Mechanical disassemblies
1-4 Cabinet front unit disassemblies.
1. Remove screw-A and remove the Front R/C board.
2. Remove 2 screws-B and remove the Front DEC Inlay R/C.
3. Remove 3 screws-C, remove the Front DEC inlay R/C and remove
the Front LED unit.
A
B
B
C
C
1-5 Front LED board removal.
1. Remove 2 screws-A and remove the Front LED board.
AA
Front LED unit
Front R/C board
Front DEC inlay R/C
Front DEC inlay R/C
Front LED board
Holder

- 20 -
C
C
B
A
A
B
B
B
2-2 Lamp cover and Push Latch-B removal.
1. Remove 2 screws-A and press button to open the Lamp cover.
2. Remove 4 screws-B and remove the Lamp cover.
3. Remove 2 screws-C and remove the Push Latch-B.
2-1 Cabinet-top unit removal.
1. Remove 8 screws and remove the Cabinet top unit.
Back View
Mechanical disassemblies
Press
Lamp Cover
Push Latch-B
Cabinet top unit
Cabinet top
Lamp Cover