Eiki EK-110U User manual

LCD Multi-media Projector
Service Manual
EIKI Model Name:
EK-110U
Version: 1.0
2017/07/07
0.1

Content
Content.....................................................................................2
Safety instruction ......................................................................3
Circuit protection.......................................................................7
Maintenance and cleaning........................................................8
Lamp Replacement ................................................................13
Safety function instruction........................................................14
Indicator and projector state....................................................15
Trouble shooting......................................................................16
Mechanical disassembly...........................................................20
Appendix...................................................................................30
Appendix-PCBA Diagrams.......................................................30
Appendix-Technical Specification.............................................34
Appendix-Configurations of terminal.........................................35
Appendix-Serial Control............................................................36
Appendix-RS232 Control Mode ...............................................37
Appendix-RS232 Control Commands......................................38
Appendix-PIN/Logo PIN code resetting....................................41
2

Safety Instructions
Please read this manual completely before installing
and operating the projector.
The projector provides many convenient features
and functions. Proper operation mayenable you to
fully utilize the features and keep it in good condition.
Otherwise, it will not only shorten the service life of
the unit, but also may cause malfunction, a fire, or
other accidents.
If your projector cannot work properly, please read
this manual again, check the operating methods and
cable connection, and try the solutions in the part of
Troubleshooting. If the problem still exists, contact the
dealer or the service center.
The lamp of the projector is a wearing part.The
luminance may decrease after a period of operation
and be weaker than that of a new lamp. This is
normal. Please strictly follow the steps in Turnung on
the unit and Turning off the unit to turn on/off the
projector, and the requirements in Maintaining and
cleaning the projector to service and clean the
projector regular. Otherwise the high temperature
residual heat may not radiate, greatly shorten the
service life of the projector and lamp,or even danage
them within a short period.
Caution
ELECTRIC SHOCK
DO NOT OPEN
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER (OR BACK). NO USER
SERVICEABLE PARTS INSIDE EXCEPT LAMP
REPLACEMENT. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
THIS SYMBOL INDICATES THAT DANGEROUS
VOLTAGE CONSTITUTINGA RISK OF
ELECTRIC SHOCK IS PRESENT WITHINTHIS
UNIT.
THIS SYMBOL INDICATESTHAT THERE
ARE IMPOR TANT OPERATING AND
MAINTENANCE INSTRUCTIONS IN THE
USER’S MANUAL WITHTHIS UNIT.
Safety
precautions
Caution: ●The projector must be grounded.
●Do not expose the projector to raindrops
or high humidity to avoid a fire or
electric shock.
- This projector produces intense light from the
projection lens. Avoid staring directly into the lens,
otherwise eye damage could be caused.
Be especially careful that children do not
stare directly into the beam.
- Place the projector in a proper position.
Otherwise it may result in fire hazard
- Leave an appropriate space from the top, sides,
and back of the shell in order to ventilate and
cool down the projector. The figures below
indicate the minimum distance to be left. It must
be satisfied if the projector is placed in sealed
environment like a cabinet.
- Do not cover the vent of the projector. Poor
radiation may shorten the service life or
even cause dangers.
- Remove the AC power plug if the projector is
not to be used for a long time.
-Do not project the same image for a long time;
otherwise, a residual image may appear on
the LCD panel due to its characteristic.
Caution:
Do not set the projector in greasy, wet, or
smoky conditions such as in a kitchen, to
prevent a malfunction or accident. If the
projector comes
in contact with oil or chemicals, it may
become deteriorated.
Read and keep this manual for future reference.
The mains plug/appliance coupler is used as
disconnect device, the disconnect device shall
remain readily operable.
FOR EU USERS
The symbol mark and recycling systems described below
apply to EU countries and do not apply to countries in
other areas of the world.
Your product is designed and manufactured with high
quality materials and components which can be recycled
and/or reused.
The symbol mark means that electrical and electronic
equipment, batteries and accumulators, at their end of
life, should be disposed of separately from your
household waste.
Note:
If a chemical symbol is printed beneath the symbol mark,
this chemical symbol means that the battery or accumulator
contains a heavy metal at a certain concentration. This will
be indicated as follows: Hg: mercury, Cd: cadmium, Pb:
lead In the European Union there are separate collection
systemsfor used electrical and electronic equipment,
batteries and accumulators.
Please, dispose of them correctly at your local
community waste collection/recyclingcentre.
Please help us to conserve the environment
we live in!
Caution:
Contains mercury
For more information on safe handling
procedures, the measures to be taken in case of
accidental breakage and safe disposal options
visit: ec.gc.ca/mercure-mercury/
Dispose of or recycle in accordance with applicable
laws.
3

All the safety and operating instructions should be
read before the product is operated.
Read all of the instructions given hereand retain them
for later use. Unplug this projector from AC power
supply before cleaning. Do not use liquid or aerosol
cleaners.
Use a damp cloth for cleaning.
Follow all warnings and instructions marked on the
projector.
Foradded protection to the projector during a lightning
storm, or when it is left unattended and unused for
long periods of time, unplug it from the wall outlet.
This will prevent damage due to lightning and power
line surges.
Do not expose this unit to rain or use near water...
for example, in a wet basement, near a swimming
pool, etc...
Do not use attachments not recommended by
the manufacturer as they may cause hazards.
Do not place this projector on an unstable cart,
stand, or table. The projector may fall, causing
serious injury to a child or an adult, and serious
damage to the projector.
Use only with a cart or stand recommended by
the manufacturer, or sold with the projector. Wall
or shelf mounting should follow the
manufacturer’s
instructions, and should use a mounting kit
approved by the manufacturers.
An appliance and cart combination
should be moved with care. Quick
stops, excessive force, and
uneven surfaces may cause the
appliance and cart combination to
overturn.
Slots and openings in the back and bottom of the
cabinet are provided for ventilation, to ensure
reliable operation of the equipment and to protect it
from overheating.
The openings should never be covered with cloth or
other materials, andthe bottom opening should notbe
blocked by placing the projector on a bed, sofa, rug,
or other similar surface. This projector should
never be placed near or over a radiator or heat
register.
This projector should not be placed in a built- in
installation such as a book case unless proper
ventilation is provided.
Never push objects of any kind into this projector
through cabinet slots as they may touch dangerous
voltage points or short out parts that could result in
a fire or electric shock. Never spill liquid of any kind
on the projector.
Do not install the projector near the ventilation duct
of air-conditioning equipment.
This projector should be operated only from the type
of power source indicated on the marking label. If
you are not sure of the type of power supplied,
consult your authorized dealer or local power
company.
Do not overload wall outlets and extension cords as
this can result in fire or electric shock. Do not allow
anything to rest on the power cord. Do not locate this
projector where the cord may be damaged by persons
walking on it.
Do not attempt to service this projector yourself
as opening or removing Covers may expose you
to dangerous voltage or other hazards. Refer all
servicing to qualified service personnel
Unplug this projector from wall outlet and refer
servicing to qualified service personnel under the
following conditions:
a. When the power cord or plug is damaged
or frayed.
b. If liquid has been spilled into the projector.
c. If the projector has been exposed to rain or water.
d. If the projector does not operate normally by
following the operating instructions. Adjust only
those controls that are covered by the operating
instructions as improper adjustment of other
controls may result in damage and will often
require extensive work by a qualified technician t
restore the projector to normal operation.
e. If the projector has been dropped or the
cabinet has been damaged.
f. When the projector exhibits a distinct change in
performance-this indicates a need for service.
When replacement parts are required, be sure the
service technician has used replacement parts
specified by the manufacturer that have the same
characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock, or
injury to persons.
Upon completion of any service or repairs to this
projector, askthe service technician to perform routine
safety checks to determine that the projector is in
safe operating condition.
Information for users in the European Union
This is a device to project images onto a screen,etc., and
is not intended for use as indoor lighting in a domestic
environ- ment. Directive
2009/125/EC.
NOTE FOR CUSTOMERS IN THE US
Hg LAMP(S) INSIDE THIS PRODUCT CONTAIN
MERCURY AND MUST BE RECYCLED OR DISPOSED OF
ACCORDING TO LOCAL STATE OR FEDERAL LAWS.
Safety Instructions
4

Air circulation
Vents in the cabinet are provided for ventilation.
To ensure reliable operation of the product and
to protect it from overheating, these openings
must not be blocked or covered.
Caution
Hotair is exhausted from the exhaust vent.
When using or installing the projector, the
following precautions should be taken.
-Do not put any flammable objects, or spray
can near the projector. Hot air is exhausted
from the air vents.
- Keep the exhaust vent at least 1m away from
any objects.
- Do not touch a peripheral part of the exhaust
vent, especially screws and metallic part. This
area will become hot while the projector is
being used.
- Do not put anything on the projector. Objects
put on the cabinet will not only get damaged
but also may cause fire hazard by heat
- Cooling fans are provided to cool down the
projector.
-The fan’s running speed is changed according
to the temperature inside the projector.
Installing the projector properly
Please set the projector on nearly-level. Be
sure to install the projector properly. Improper
installation may reduce the lamp lifetime and
even cause a fire hazard
Caution in ceiling installation the
projector
–Only qualified personal is authorized for
ceilin installation.
–We are not responsible for the hurt and
damage caused by ceiling bracket that
purchased from unauthorized dealer even in
warranty period.
–Remove the ceiling bracket immediately
while not use.
–While installing, torque screwdriver is
suggested, don't use electric or impact-
type screwdriver.
–Please read the manual of bracket for details.
Do not roll the projector over
10 from side to side.
o
Do not point the projector up
to project an image.
Do not point the projector
down to project an image.
Do not put the projector on
either side to project an image.
(Do not pitch the projector more
than 10 backward and
forward.
o
Moving the projector
When moving the projector, take care of the
lens and retract the adjustable feet to
prevent damage to the lens and cabinet.
Caution in moving or transporting
the projector
–Do not drop or bump the projector,
otherwise damages or malfunctions may
result.
–When carrying the projector, use a
suitable carrying case.
–Do not transport the projector by courier or
any other transport service in an unsuitable
transport case. This may cause damage
to the projector. For more information about
transporting the projector by courier or any
other transport service, consult your dealer.
–Do not put the projector in a case before it is
cooled enough.
Safety Instructions
5

Safety instruction
safety precautions
1.1 General Policy
–Do no T attempt to make a circuit modification for the sake of safety for long
–unplug the power cord from the power outlet before removing the projector.
–Please use the random supply line correctly, and make sure that the line must be erathed.
–use insulation transformer on the ac power cord before maintenance.
–Do no T touch any rotating parts of the projector (cooling fan, etc.) when the lid is removed and the power is
powered on.
–Please pay attention to the original layout of the wire in the maintenance process. o nce there is a short circuit,
please replace all the pin the maintenance processarts that are overheated and damaged due to short circuit.
–make sure to install the protective devices, such as: insulation barrier, insulation paper, screen and insulation R-C
connection, etc. after the maintenance is completed.
–Please check for the leakage after the maintenance is completed to prevent customers from electric shock.
1.2 Leakage check:
1.Be ready to measure circuit in figure 1 belo .
make sure your voltmeter are of the same properties as described in table 1.
2. Connect the circuit as figure 2 shows. Plug the power cord into an electrical outlet
3. Connect M1 to T1 as figure 2 shows, and measure the voltage
4. Connect m1 to T2, and measure the voltage again.
5.The read value of the voltmeter in step 4 must be 0.375 volts or less in step 3 and 4. This means that the current
must be 0.75 mA or less.
6.if the read values exceed the above criteria, the projector must be repaired and re-examination in order to
prevent the risk of electric shock before returning to the customer.
1.3 uV and uh P lamps prevetive measures:
–Be sure to unplug the power cord from the power outlet when replacing the lamp.
–The lamp will reach to rather high temperature during the lighting process. You need spend some time to cool
lamp off completely before replacing it will emit a small amount of uV radiation.
–There will be high pressure in the lamp internal component. s o it may lead to an explosion just for your abnormal
operation
–Do no T touch the lamp wires during maintenance as there is much high pressure in the lamp internal component.
6

Circuit protection
Fuse
Lamp cover switch
Lamp cover switch
When the lamp cover is removed or not fully closed, the lamp
cover switch will cut off the drive signal of the lamp circuit.
Please make sure to install the lamp cover correctly after you
open lamp cover and replace it, otherwise the projector can't
power on properly.
Fuse (F2003)
The fuse is placed inside the projector.
When you find the standby (red) indicator light is off, it is highly
possible that the fuse is disconnected. Please check the fuse
as follows and use the following specified fuse type to replcae.
sERViCE CoDE: 63740005
TYPE: VuC uBm-A 6.3A 250V (Pf) f us E,
Co n QuER
How to replace the fuse
1. The fuse is placed above the filter board. Remove the case,
the main board , AV board and speaker bracket as the steps
in "mechanical Disassembly" .
2. Remove the fuse from the fuse holder ,then replace it with
the specified type
The projector has the following security operation circuit protection functions. if there is any abnormal in the inside of
the projector, one of the following protection circuit action will make your projector shut down automatically .
Thermal switch
- The thermal switch inside the projector is used to detect
abnormal temperature inside the projector. When the internal
temperature is close to 100˚C (± 5˚C), the thermal switch will
cut off the lamp power to stop power supply.
- if the thermal switch is off, you can not turn on the projector.
Please press the thermal switch button to reset thermal switch.
Thermal switch
Thermal switch button
7

Maintenance and cleaning
WARNING indicator
The WARNINGindicator shows the state of the function which protects the projector. Check
the state of the WARNINGindicator to take proper maintenance.
The projector is shut down and the WARNING
Caution
Do not leave the projector with the AC power cord connected under an abnormal
condition. It may result in fire or electric shock
WARNING indicator
WARNING indicator
indicator is flashing red
When the temperature inside the projector
exceeds the normal temperature, the
projector is automatically shut down to protect
internal components. The WARNING indicator
is blinking while the projector is being cooled
down. When the projector has cooled down
enough (to its normal operating temperature),
it can be turned on again by pressing the
POWER button.
Note:
The WARNING indicator continues to
blink even after the temperature inside
the projector returns to normal. When
the projector is turned on again, the
WARNING indicator stops blinking.
Check the items below:
–Did you provide appropriate space for
the projector to be ventilated?
Check the installing condition to see
if ventilation slots are not blocked.
–Has the projector been installed near
the duct or vent of an airconditioning?
Move the installation of the projector
away from the duct or vent.
–Are the air filters clean? Clean the air
filte periodically.
The projector is shut down and the
WARNINGindicator lights red.
When the projector detects an
abnormal condition, it is automatically
shut down to protect the internal components
and the WARNING indicator lights red. In
this case, unplug the AC power cord and
plug it, and then turn on the projector once
again to verify operation. If the projector
cannot be turned on and the WARNING
indicator lights red, unplug the AC power
cord and contact the service station for
servicing and maintenance.
8

Maintenance and cleaning
Cleaning the filte
The air filter prevents dust from accumulating on the surface of the optical elements
inside the projector. Should the air filter become clogged with dust particles, it will reduce
cooling fans’ effectiveness and may result in a buildup of internal heat and adversely
affects the life of the projector. If the Filter warning icon appears on the screen, the air filter
should be cleaned immediately.Clean the air filter following the steps belo .
1 Turn off the projector, and unplug the
AC power cord from the AC outlet.
2 Remove the air filte .
3 Gently clean the filter with a brush
4 Reinstall the filter into the projector properl .
Filter
Filter counter reset
Be sure to reset the filter counter after
cleaning or replacing the filte .
1. Press Menu on the remote control to
display the screen menu. Press to
select "Expand", then press the OK button.
2. Press  to select "Filter counter", and
then press the OK button.
Press  to select "Filter counter reset"
and pressthe OK button, "Filter counter
Reset?" appears on screen, select "Yes" to
continue.
3. When another dialog boxpopsup,
select "Yes" to reset the filte .
Caution
Do not operate the projector
with the air filter removed. Dust
may accumulate on the optical
elements, degrading picture quality.
Do not put any small objects into
the air intake vents. Otherwise, it
may result in malfunction of the
projector.
Recommendation
We recommend avoiding dusty/smoky
environments when you operate the
projector. Usage in these environments may
cause poor image quality.
When you use the projector under dusty or
smoky conditions, dust may accumulate on the
lens, LCD panels, or optical elements inside the
projector. When the symptoms above are
noticed, contact your authorized dealer or
service station for proper cleaning.
9

Maintenance and cleaning
Clean the projector lens
Unplug the AC power cord before cleaning.
Gently wipe the projection lens with a cleaning
cloth that contains 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 lens.
Clean the cabinet
Unplug the AC power cord before cleaning.
Gently wipe the projector surface with a soft
dry cleaning cloth. When the cabinet is heavily
soiled, use a small amount of mild detergent
and fi ish 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 a pouch to protect it from dust and
scratches.
10

Replace the lamp
When the projection lamp of the projector
reaches its end of life, the Lamp replacement
icon appears on the screen. Replace the
lamp with a new one of the same type
promptly.
The timing when the lamp replacement
icon appears is depending on the lamp
mode.
Maintenance and cleaning
Lamp replacement icon
Lamp replacement
As temperature inside the projector is high,
you should cool the projector for at least 45
minutes before you open the lamp cover.
CAUTION
Whenthe lamp isn’t illuminated, it may indicate that the lamp has been damaged.
When you replace the lamp in a projector installed on the ceiling, you should stand beside
the lamp cover other than under it; for the broken glass may fall down to hurt you. To do that,
remove the lamp cover gently to avoid being hurt by falling debris. If debris drops into your
eyes or mouth, you should see the doctor immediately.
To replace the lamp, follow the steps below:
Forthe sake of safety, onlyusethelampof
the same model. Never drop the lamp onto the
ground nor touch the glass bulb! The glass can
shatter and hurt.
CAUTION
CAUTION
1. Power off the projector and unplug the
power cord. Then let the projector cool for
at least 45 minutes.
2. Loosen the screw on the lamp cover
to remove the cover.
3. Make sure the lamp is well protected
and loosen four screws. Hold the
handle to take out the lamp.
4. Install a new lamp with the same model
and tighten the four screws. Make sure
the installation is correct. Put lamp cover in
place and then tighten the screw.
5. Plug the AC power cord and power on
the projector.
11

LAMP HANDLING PRECAUTIONS
This projector uses a high-pressurelamp which must be handled carefullyand properly.
Improper handlingmay result in accidents, injury, or create a fire hazard
●Lamp life may differ from lamp to lamp and according to the environment of use. There is no
guaranteeof the same life for each lamp. Some lamps may fail or terminate their life in a shorter
period of time than other similar lamps.
●If the projector indicates that the lamp should be replaced, i.e., if the WARNING 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 this manual.) Continuous use of the
lamp with the WARNING indicatorlighted 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
andwhoare familiar with projector service. Inappropriate attempts to service theunit 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.
Maintenance and cleaning
Order Replacement lamp
Replacement lamp can be ordered through your dealer. When ordering a projection lamp, give the
following informationto the dealer.
Replacement Lamp Model No.: 23040054
12

Lamp Replacement
If the filter is blocked by dust, the effect of cooling fan will be reduced, and
heat accumulate in the projector, service life will be shortened and the life of
the lamp. Cleaning filter is suggested after lamp replacement. Replacement
Refer to "Clean the filter".
Expend
Language
Auto setup
Keystone
Logo
Security
Power management
Filter counter
Test pattern
Network
Factory default
Lamp counter
Lamp counter
Lamp Counter Reset
This function resets the counter of Lamp usage
hours.Please be sure to reset the lamp counter
after replacing the lamp. WARNING indicator
turns Off and the lamp replacement icon disap-
pears after reset the lamp counter.
Press < MENU > button on the remote con- troller
or on the top control panel to display the OSD
menu. Press button to select the
Expand menu, then press <OK> or button.
1) Press button to select [Lamp counter]
menu.
2) Press <OK > button.
3)Press button to select [Lamp counter
reset], then press <OK> button.
4)" Lamp replacement counter reset ? "
conformation box appear.
4) Select "Yes" and Press <OK> button.
13

Safety function instruction
This projector provides Closed caption，Key lock andPin code lock ensure the
projector's operation safety. only when users enter the correct password can you open
your projector when youhasset up the three security fea tures.You won't start the
projector without password. in case of the above issues，please reset such three
security features according to the following reset procedure，and then re-check.
If forget all password, thus please following the steps to reset thePIN lock or LogoPIN lock:
1. Un-plug the projector
2. Press and (Power) button at same time then plug on AC power cord.
3. Theunit will be reseted to defult password: 111
standby mode instruction
The projector has two kinds of standby mode，namely Eco.mode and the normal
mode. in thetwo mode，the follow ing functions will be limited as shown in the
table. Please switch to standby mode on the setting menu.
Normal mode......It can still charge the projector，even if turned off it.
Eco. mode ...........select Eco. mode without network.
Andthe network function will work failure after you turn off the
projector once you select the Eco. mode，some function will be limited.
Limited functions in standby mode
Function
Description
Closed caption
Set up it on the top panel or remote controller.
select the Closed caption function will make you
unable to power on your projector .
Initial setup: Closed caption off
PIN code lock
Prevent unauthorized personnel from
operating the projector.
initial Password: 111
Logo PIN code lock
Prevent unauthorized personnel from changing theLogo.
initial Password: 111
*1 :only be effective when plugged into power.
* 2 :only effective when plugged into power with the special software.
Function
Eco. mode
Normal mode
Serial control
1v*
1v*
Network
--
--
Monitor output
--
--
Audio output
--
--
Auto startup
v
v
14

Indicator and projector state
Check the indicator to know about the state of projector
Flash green Flash red Flash Yellow
* When the lamp reaches the end of its life, the LAMP indicator lights Yellow. In this
case, replace the lamp with a new one promptly.
Green Red Yellow Off
Indicator
State of projector
WARNING
(Red)
POWER
(Green/Red
/ Yellow)
Projector is in Off status (without AC power supply).
Projector is in standby status. Press Standby button to turn it on.
Projector is in normal status.
It is ready for standby or the lamp is cooling. You may power on your projector
only after the lamp is fully cooled and the POWER light indicator stops flashing
Projector is in Ready mode.
Projector cannot power on, as its internal temperature is too high. User may
power it on after it is fully cooled, temperature backs to normal, and the
POWER light indicator turns red.
Projector cannot light on, Please check the unit's lamp cover whether close well, or
the cover switch unnormal. If lamp cover, and cover switch is ok, but the unit still not
light up, thus please check Lamp, Ballast & it's connection pulg well.
Projector detects lamp abnormality and switches into standby mode.
Projector detects the temperature abnormality and switches into standby mode.
Projector detects power abnormality.
Projector detects fan abnormality.
Projector detects its usage time ≥ the life of the projector -300H when the
projector usage time <1.1 times the life of the projector.
Projector detects its usage time ≥ 1.1times the life of the projector.
15

Trouble shooting
When the temperature inside the projector is too high or the cooling fan stops rototating or loss of power , the
projector will shut down automatically.
POWER indicator
- the power indicator turns steady red, when the projector is in standby mode,
- the power indicator turns steady green, during the working time.
- the power indicator is flashing green, when the projector is in power management mode
- the power indicator is flashing red, when the projector is in cooling mode.
- the power indicator turns steady yellow,when the projector power is abnormal.
WARNING indicator
- the indicator is flashing red,when the internal temperature of the projector exceeds the operating range.
Indicator
Power on abnormal
Follow the steps below for check:
While in STANDBY
status indicator turns
Off
Main board abnormal
Check whether main
board(MB) defectiv & it's
connection whether plug well
No
No
No
1. Check whether the lamp cover is installed correctly and lamp cover switche
are normal or not.
2. Check whether the lamp work well, the ballast & it's connection plug well.
Yes
Power Supply abnormal
Check the main boardand power supply voltages when the POWER
indicator turns yellow.
Yes Temperature abnormal
1. Check the projector 's temperature and whether you have already inserted
the temperature sensor line.
2. Check thefanandthe filter.
Fail to power on;
Both POWER
indicator and
WARNING
indicator flashs red
Yes
Yes No
Yes Yes
Power abnormal
Check Whether Power supply
& connections or Fuse
defective
Change Power supply
or Fuse Change Main Board
Re-Plug connections
Lamp, lamp cover or Ballast abnormal
Fail to power on;
POWER indicator
turns flashe yellow
and WARNING
indicator turns red
Fail to power on;
POWER
indicator turns yellow
Fail to power on;
POWER indicator turns Yes
flashes yellow
Fan abnormal
Check all fans when the POWER indicator flashes yellow.
16

Trouble shooting
Image display abnormal
Check the image as the following steps.
Singal input ; butno
image display Check signal processing andLCD driver board.
Check the power supply
Check the connection between the main board to LCD driver board
andthe power supply of LCD driver board.
Video input ; butno
image display Check the connection between the terminal andFCF lines.
No
No
No
Check the connection between HDMI Cable and main board Change
other function well HDMI cable & whether work well with the unit
HDMI input ; butno
image display
Check whether the power lines between main boardtothe terminal
connect properly with theFCF lines.
VGA input ; but
no image display
Yes
Yes
Yes
Yes
No sound
Follow the steps below for check:
1. Check whether the speaker cable is plugged in or broken.
2. Ckeck whether the speaker is damaged or not. If speaker defective,
then change speaker.
1. Check the connection FFC wire between Main baordand AV baord
2. Check the ower wire  between Main board and AV board
Change AV board
Check whether AV
board whether defectie 
No
Yes
Check whether it has
au- dio signal output
Yes
No
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Before calling your dealer or service center for assistance, check the items below once
again.
- Make sure you have properly connected the projector to peripheral equipment.
- Make sure all equipment is connected to the AC outlet and the power is turned on.
- If the projector does not project an image when it is connected to a PC, restart the PC.
Problems –Solutions
No power - Plug the power cord of the projector into the AC power outlet.
- Check whether the POWER indicator lights red.
- Only when the POWER indicator lights red you can power on
the projector again.
- Check the WARNING indicator. If it is blinking red, the projector can not
be powered on.
- Check the projection lamp.
-Unlock the “Key lock” function.
No initial displaying - Make sure that Logo function is not set to "Off".
Initial displaying is inconsistent
with factory defaults - Make sure that Logo function is not set to "Off" or "User".
Input signals are automatically
switched (can’t be switched) - Properly adjust the Input search function.
Ambiguous images - Adjust the focus.
- Set a more proper projection distance.
- Check whether the lens needs to be cleaned.
- When moved from a environment with low temperature to
the one with higher temperature, water will be condensed
on the lens. If so, you have to wait till the condensed
water disappears.
Image turns over
leftward/ rightward
Image turns over
upward/ downward
-Check the function of “Ceiling/rear”. -
Check the function of “Ceiling”.
Image not bright enough - Check whether the contrast or brightness is adjusted correctly.
- Check whether the Image mode is properly selected. -
Check the function of lamp brightness adjusting.
No image - Check the connection between Computer or video equipment
and the projector.
- Check whether the signal from Computer is correct. If connected to
certain laptops, the settings of their video adapters need to be
changed. You can refer to the operating instructions of the
Computer for such modificati n.
- Images can show up only about 20 seconds after the
projector is powered on.
- Check the input signal, color system, video system or
Computer system mode.
-Make sure that the temperature doesn’t exceed the
permitted operating temperature(41˚F-104˚F [5˚C -40˚C] ).
- If BLANK function is enabled, no image will appear on the screen.
You can then press the BLANK button or other button on the
remote control.
Troubleshooting
18

No Sound - Check the audio cable connection from audio input source.
- Adjust the audio source.
- Press the VOLUME + button.
- Press the Mute button.
- When the AUDIO OUT is plugged in, the projector’s built-in
speaker is not available.
- Is the image projected? The sound can only be heard when
the image is projected.
The color is abnormal - Check the input signal, color system, video system or
computer system mode.
- Make sure that Blackboard is not selected in Image Mode menu.
Auto PC adj. function does not - Check the Input signal. Auto PC adj. function can not work when
work. 480p, 576p, 720p, 480i, 576i, 1080i or 1080p is selected.
The Settings cannot be saved - Make sure you have selected “store” after you changed the
after turing off the projector. settings. Some settings can’t be saved if “ store” is not selected.
Power management function does - Power management function can not work while Freeze or
Blank not work. function is running.
Logo function does not work. - Check connections and input source.
Auto setup function does not work. - Make sure no function in the Auto setup menu is set to “Off”.
-Make sure “On” is not chosen in the Ceiling function.
The image is distorted or - Check and adjust “ Screen”
menu. disappears.
PIN code dialog box appears at - PIN code lock is being set.
start-up
The remote control does not work. - Check the batteries.
- Make sure no obstruction is between the projector and
the remote control.
- Make sure you are not too far from the projector when using
the remote control. Maximum operating range is 5 m.
- Make sure the code of the remote control is conformed to that
of the projector.
- Unlock the Key lock function in the Setting menu for the
remote control.
Indicators light or flash - Refer to Indicators and projector condition to check the status
of the projector.
Exclamatory mark appears on the - Your operation is invalid. Operate
correctly. screen.
top control cannot be operated. - Unlock the Key lock in Setting -> Key lock.
Unable to unlock the Logo PIN - Contact the dealer or the service
center. code, Key lock or PIN code lock.
Warning:
High voltages are used to operate this projector. Do not attempt to open the
cabinet.
19

6. Duct and Lamp Cooling Fan disassembly
7. Optial Engine Fan and Duct Ass'y disassembly
Mechanical Disassembly
Mechanical disassembly 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 loss of
performance and product safety.
1. Dust filter & Lamp Cover removal
5. Fan driver /Power supply&Ballast disassembly
4. Speaker and Optical engine Ass'y disassembly
3. Main baord and LCD driver board disassembly
2. Top cover disassembly
8. BTM-case Ass'y disassembly
20