Dukane Imagepro 8944 Lcd Projector Users Manual

							
59
Maintenance
Lamp
A lamp has finite product life. Using the lamp for long periods of time could cause 
the pictures darker or the color tone poor. Note that each lamp has a different 
lifetime, and some may burst or burn out soon after you start using them\
. 
Preparation of a new lamp and early replacement are recommended. To prepare 
a new lamp, contact your dealer and tell the lamp type number.

Type number = 456-8943
Replacing the lamp
. Turn the projector off, and unplug the power cord. 
Allow the projector to cool for at least 45 minutes.
. Prepare a new lamp.  
If the projector is mounted on a ceiling, or if the lamp 
has broken, also ask the dealer to replace the lamp.
In case of replacement by yourself,
3. Loosen the screw (marked by arrow) of the lamp cover 
and then slide the lamp cover to the side to remove it.
4. Loosen the 3 screws (marked by arrow) of the 
lamp, and slowly pick up the lamp by the handles.
5. Insert the new lamp, and retighten firmly the 
3 screws of the lamp that are loosened in the 
previous process to lock it in place.
6. Slide the lamp cover back in place and firmly 
fasten the screw of the lamp cover.
7. Turn the projector on and reset the lamp time 
using the LAMP TIME item in the OPTION menu 
(44). 
( ) Press the MENU button to display a menu. 
( ) Point at the “Go to Advanced Menu …” in the menu 
using the ▼/▲ button, then press the ► button.
(3) Point at the “OPTION” in the left column of the 
menu using the ▼/▲button, then press the ► 
button.
(4) Point at the “LAMP TIME” using the ▼/▲ button, then press the ► button. A 
dialog will appear.
(5) Press the ▲ button to select “RESET” on the dialog. It performs resetting the 
lamp time.
Maintenance
NOTE  • Please reset the lamp time only when you have replaced the lamp, \
for a suitable indication about the lamp.
The lamp cover
The handles 
						

							
60

Maintenance
Lamp (continued)
Lamp warning
 HIGH VOLTAGE HIGH TEMPERATURE HIGH PRESSURE
WARNING  ►The projector uses a high-pressure mercury glass lamp. The 
lamp can break with a loud bang, or burn out, if jolted or scratched, handled 
while hot, or worn over time. Note that each lamp has a different lifetime, and 
some may burst or burn out soon after you start using them. In addition, when 
the bulb bursts, it is possible for shards of glass to fly into the lamp housing, and 
for gas containing mercury to escape from the projector’s vent holes.
►About disposal of a lamp: This product contains a mercury lamp; do not put 
it in a trash. Dispose of it in accordance with environmental laws. 
•  For lamp recycling, go to www.lamprecycle.org. (in the US)
•  For product disposal, contact your local government agency  
or www.eiae.org (in the US) or www.epsc.ca (in Canada).
For more information, call your dealer.
• If  the  lamp  should  break  (it  will  make  a  loud  bang  when  it  does), 
unplug  the  power  cord  from  the  outlet,  and  make  sure  to  request  a replacement  lamp  from  your  local  dealer.  Note  that  shards  of  glass could damage the projector’s internals, or cause injury during handling, so please do not try to clean the projector or replace the lamp yourself\
.•  If  the  lamp  should  break  (it  will  make  a  loud  bang  when  it  does), ventilate  the  room  well,  and  make  sure  not  to  breathe  the  gas  that comes out of the projector vents, or get it in your eyes or mouth.• Before replacing the lamp, turn the projector off and unplug the power cord,  then  wait  at  least  45  minutes  for  the  lamp  to  cool  sufficiently. Handling  the  lamp  while  hot  can  cause  burns,  as  well  as  damaging  the lamp.
• Never unscrew except the appointed (marked by an arrow) screws.
•  Do  not  open  the  lamp  cover  while  the  projector  is  suspended  from above.  This  is  dangerous,  since  if  the  lamp’s  bulb  has  broken,  the shards  will  fall  out  when  the  cover  is  opened.  In  addition,  working  in high  places  is  dangerous,  so  ask  your  local  dealer  to  have  the  lamp replaced even if the bulb is not broken.•  Do  not  use  the  projector  with  the  lamp  cover  removed. At  the  lamp replacing,  make  sure  that  the  screws  are  screwed  in  firmly.  Loose screws could result in damage or injury.
• Use only the lamp of the specified type.
•  If  the  lamp  breaks  soon  after  the  first  time  it  is  used,  it  is  possible that  there  are  electrical  problems  elsewhere  besides  the  lamp.  If  this happens, contact your local dealer or a service representative.• Handle with care: jolting or scratching could cause the lamp bulb to bur\
st during use.• Using the lamp for long periods of time, could cause it dark, not to light 
up  or  to  burst.  When  the  pictures  appear  dark,  or  when  the  color  tone is  poor,  please  replace  the  lamp  as  soon  as  possible.  Do  not  use  old (used) lamps; this is a cause of breakage. 
Disconnect the plug from the power outlet 
						

							
6

Please  check  and  clean  the  air  filter  periodically.  If  the  air  filter  becomes  clogged 
by  dust  or  the  like,  internal  temperatures  rise,  which  could  cause  a  fire,  a  burn  or 
malfunction  to  the  projector.  When  the  indicators  or  a  message  prompts  you  to 
clean the air filter, comply with it as soon as possible. Note that the projector may 
shut down, when the projector heats too much.
Please replace the air filter when it is damaged or too soiled. Preparation of a new 
air filter is recommended. To prepare a new air filter, contact with your dealer and 
tell the air filter type number.
Type number = MU03642
Cleaning the air filter
. Turn the projector off, and unplug the 
power cord. Allow the projector to 
sufficiently cool down.
. Use a vacuum cleaner on and around the 
filter cover.
3. Hold the filter cover knobs while lifting it. 
The filter unit made up the filter cover and 
others will come off.
4. Use a vacuum cleaner for the filter vent of 
the projector and the filter frame side of 
the filter unit. 
If the air filter is damaged or too soiled, 
replace it according to the following 
procedure number 5 to 7. Otherwise, please 
jump to the procedure number 8.
5. To remove the filter frame, hold the filter 
cover while holding and pulling the filter 
frame’s knob by another hand.
6. Replace the air filter with new one. It is 
recommended that the fluted surface of 
the air filter faces the filter cover.
7. Put the filter frame back. 
8. Put the filter unit back into the projector.
Maintenance
Air filter
The front side of the projector
The filter cover
The filter cover knobs
The filter unit
The filter frame knob
(continued on next page)
The air filter
The filter frame
The filter cover
The fluted surface of the air filter 
						

							
6

WARNING  ►Before taking care of the air filter, make sure the power 
switch is off and the power cable is not plugged in, then allow the projector to 
cool sufficiently. Taking care of the air filter in a high temperature state of the 
projector could cause an electric shock, a burn or malfunction to the pr\
ojector.
►Use only the air filter of the specified type. Do not use the projector without 
the air filter or the filter cover. It could result in a fire or malfunction to the 
projector.
►Clean the air filter periodically. If the air filter becomes clogged by dust or the 
like, internal temperatures rise and could cause a fire, a burn or malfunction to 
the projector.
NOTE  • Please replace the air filter when it is damaged or too soiled, and 
also when you replace the lamp.
• When you replace the projection lamp, please replace the air filter . An air filter 
of specified type will come together with a replacement lamp for this projector .
• Please reset the filter time only when you have cleaned or replaced the air 
filter, for a suitable indication about the air filter.
• The projector may display the message such as “CHECK THE AIR FLOW” or 
turn off the projector, to prevent the internal heat level rising. 
Maintenance
9. Turn the projector on and reset the filter time using the FILTER TIME item in 
the EASY MENU (26). 
( ) Press the MENU button to display a menu. 
(2) Point at the “FILTER TIME” using the ▼/▲ button, then press the ► button. A 
dialog will appear.
(3) Press the ▲ button to select “RESET” on the dialog. It performs resetting the 
filter time.
Air filter (continued) 
						

							
63

Maintenance
. Turn the projector off, and unplug the power cord. Allow the projector to cool sufficiently.
. After making sure that the projector has cooled adequately, slowly turn over the projector, so that the bottom is facing.
3. Remove the battery cover.  Turn the battery cover in the direction indicated “OPEN” using such as coins. Then the battery cover will come up. While removing the battery cover, pick its knob.
4. Take the old battery out. Press the metal claw of the battery holder. Then the battery will come up. Remove the battery.
5. Put a new battery in.Replace battery with HITACHI MAXELL, Part No.CR2032 only. Use of another battery may present a risk of fire or explosion.Insert a new battery in the battery holder according to its minus termin\
al  as indicated in the battery holder, so that the side marked by + is facing. And push the battery into the battery holder fully to fix.
6. Close the battery cover.  Replace the battery cover in place, then turn it in the direction indicated “CLOSE” using such as coins, to fix.
 CLOSE
Battery Cover
 
OPEN
Knob Metal claw
“+” marking
WARNING  ►Always handle the batteries with care and use them only as directed. Battery may explode if mistreated. Do not recharge, disassemble or dispose of in  fire. And also improper use may result in cracking or leakage, which could result in fire, injury and/or pollution of the surrounding environment.• Be sure to use only the batteries specified. Do not use batteries of different types at the same time. Do not mix a new battery with used one.• Make sure the plus and minus terminals are correctly aligned when loadin\
g a battery.If the battery is placed in the battery holder upside-down, it may be ha\
rd to remove.• Keep a battery away from children and pets. If swallowed consult a physi\
cian immediately for emergency treatment.• Do not short circuit or solder a battery.• Do not allow a battery in a fire or water. Keep batteries in a dark, cool and dry place. • If you observe a leakage of a battery, wipe out the flower and then replace a battery. If the liquid adheres to your body or clothes, rinse well with water immediately.• Obey the local laws on disposing the battery.
Internal clock batter y 
Consumption of the battery makes the clock not to work correctly. When the clock is wrong or it has stopped, please replace the battery according to the following procedures.

NOTE  • If the battery is placed in the battery holder upside-down, follow the p\
rocedure below to remove and reload it properly.. Remove the battery cover as described in steps    through 3 above.. Turn the projector over again, so that the top of the projector is facing\
 up.3. While lifting the side of the projector closest to the lens, press th\
e metal claw of the battery holder. The battery will fall out of the holder, so be careful not to lose it.4. Turn the projector over once more, so that the bottom faces up, and reload the battery correctly.• The internal clock’s time will be reset when the battery is removed. Please reconfigure the time via the menu or a web browser after replaci ng the battery.( 2.5.7 Date/Time Settings of the - Network Functions Section) 
						

							
64

Maintenance
Inside of the projector
In order to ensure the safe use of your projector, please have it cleaned and 
inspected by your dealer about once every year.
Caring for the lens
If the lens is flawed, soiled or fogged, it could cause deterioration of display 
quality. Please take care of the lens, being cautious of handling.
. Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently.
. After making sure that the projector is cool adequately, lightly wipe the lens 
with a commercially available lens-cleaning wipe. Do not touch the lens \
directly with your hand.
Caring for the cabinet and remote control
Incorrect care could have adverse influence such as discoloration, peeling paint, 
etc.
. Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently.
. After making sure that the projector is cool adequately, lightly wipe with gauze 
or a soft cloth. 
If the projector is extremely dirty, dip soft cloth in water or a neutral cleaner 
diluted in water, and wipe lightly after wringing well. Then, wipe lightly with a 
soft, dry cloth.
Other care 
WARNING  ►Before caring, make sure the power switch is off and the 
power cable is not plugged in, and then allow the projector to cool sufficiently . 
The care in a high temperature state of the projector could cause a burn\
 and/or 
malfunction to the projector.
►Never try to care for the inside of the projector personally. Doing is so 
dangerous. 
►Avoid wetting the projector or inserting liquids in the projector. It could result 
in a fire, an electric shock, and/or malfunction to the projector. 
• Do not put anything containing water, cleaners or chemicals near the 
projector. 
• Do not use aerosols or sprays.
CAUTION  ►Please take right care of the projector according to the 
following. Incorrect care could cause not only an injury but adverse influence 
such as discoloration, peeling paint, etc. 
►Do not use cleaners or chemicals other than those specified in this manual. 
►Do not polish or wipe with hard objects. 
						

							
65

Troubleshooting
Related messages
When the unit's power is on, messages such as those shown below may be 
displayed. When any such message is displayed on the screen, please foll\
ow the 
instructions described below. If the same message is displayed after the remedy, 
or if a message other than the following appears, please contact your de\
aler or 
service company.
Although these messages will be automatically disappeared around several\
 
minutes, it will be reappeared every time the power is turned on.
MessageDescription
NO INPUT IS DETECTED
There is no input signal. 
Please confirm the signal input connection, and the status 
of the signal source.
SYNC IS OUT OF RANGE                    fH  kHz  fV  Hz
The horizontal or vertical frequency of the input signal 
is not within the specified range.
Please confirm the specs for your projector or the signal 
source specs.
CHECK THE AIR FLOW
The internal temperature is rising. 
Please turn the power off, and allow the projector to cool 
down at least 20 minutes. After having confirmed the 
following items, please turn the power ON again. 
 • Is there blockage of the air passage aperture? 
 • Is the air filter dirty? 
 • Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the remedy, please set 
FAN SPEED of the SERVICE item in the OPTION menu to HIGH.
REMINDER
*** HRS PASSED AFTER THE 
LAST FILTER CHECK. 
FILTER MAINTENANCE IS ESSENTIAL
 TO REMOVE WARNING MESSAGE,
RESET FILTER TIMER.
SEE MANUAL FURTHER INFO.
A note of precaution when cleaning the air filter. 
Please immediately turn the power off, and clean or change 
the air filter referring to the “Air Filter” section of this manual 
(61). After you have cleaned or changed the air filter, 
please be sure to reset the filter timer (26, 62).
Troubleshooting 
						

							
66

Troubleshooting
Regarding the indicator lamps
Lighting and flashing of the POWER indicator, the LAMP indicator, and the TEMP 
indicator have the meanings as described in the table below. Please follow the 
instructions within the table. If the same indication is displayed after\
 the remedy, 
or if an indication other than the following is displayed, please contac\
t your dealer 
or service company.
POWER 
indicator
LAMP 
indicator
TEMP 
indicatorDescription
Lighting
In Orange
Turned
off
Turned
off
The projector is in a standby state.
Please refer to the section “Power On/Off”.
Blinking
In Green
Turned
off
Turned
off
The projector is warming up.
Please wait.
Lighting
In Green
Turned
off
Turned
off
The projector is in an on state.
Ordinary operations may be performed.
Blinking
In Orange
Turned
off
Turned
off
The projector is cooling down.
Please wait.
Blinking
In Red
(discre-
tionary)
(discre-
tionary)
The projector is cooling down. A certain error 
has been detected.
Please wait until the POWER indicator finishes 
blinking, and then perform the proper measure using 
the item descriptions below.
Blinking
In Red
or
Lighting
In Red
Lighting
In Red
Turned
off
The lamp does not light, and there is a 
possibility that interior portion has become 
heated.
Please turn the power off, and allow the projector to 
cool down at least  0 minutes. After the projector has 
sufficiently cooled down, please make confirmation of 
the following items, and then turn the power on again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
• Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the remedy, 
please change the lamp referring to the section “Lamp”.
Blinking
In Red
or
Lighting
In Red
Blinking
In Red
Turned
off
The lamp cover has not been properly fixed. 
Please turn the power off, and allow the projector to 
cool down at least 45 minutes. After the projector has 
sufficiently cooled down, please make confirmation 
of the attachment state of the lamp cover. After 
performing any needed maintenance, turn the power 
on again. If the same indication is displayed after 
the remedy, please contact your dealer or service 
company. 
						

							
67

Troubleshooting
Regarding the indicator lamps (continued)
POWER 
indicator
LAMP 
indicator
TEMP 
indicatorDescription
Blinking
In Red
or
Lighting
In Red
Turned
off
Blinking
In Red
The cooling fan is not operating.
Please turn the power off, and allow the projector to 
cool down at least  0 minutes. After the projector has 
sufficiently cooled down, please make confirmation 
that no foreign matter has become caught in the fan, 
etc., and then turn the power on again.
If the same indication is displayed after the remedy, 
please contact your dealer or service company.
Blinking
In Red
or
Lighting
In Red
Turned
off
Lighting
In Red
There is a possibility that the interior portion 
has become heated.
Please turn the power off, and allow the projector to 
cool down at least  0 minutes. After the projector has 
sufficiently cooled down, please make confirmation of 
the following items, and then turn the power on again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
• Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the remedy, 
please set FAN SPEED of the SERVICE item in the 
OPTION menu to HIGH.
Lighting
In Green
Simultaneous
blinking in Red
It is time to clean the air filter.
Please immediately turn the power off, and clean or 
change the air filter referring to the section “Air Filter”. 
After cleaning or changing the air filter, please be sure 
to reset the filter timer. After the remedy, reset the 
power to ON.
Lighting
In Green
Alternative
blinking in Red
There is a possibility that the interior portion 
has become overcooled.
Please use the unit within the usage temperature 
parameters (5°C to 35°C). After the treatment, reset 
the power to ON.
Blinking in 
Green for 
approx. 3 
seconds
Turned
off
Turned
off
At least 1 “Power ON” schedule is saved to the 
projector.
(Please refer to the User’s Manual-Network Functions: 
Schedule Settings for more information.)
NOTE  • When the interior portion has become overheated, for safety 
purposes, the power source is automatically turned off, and the indicator lamps 
may also be turned off. In such a case, press the “” (OFF) side of the power 
switch, and wait at least 45 minutes. After the projector has sufficiently cooled 
down, please make confirmation of the attachment state of the lamp and lamp 
cover, and then turn the power on again. 
						

							
68

Troubleshooting
Phenomena that may be easy to be mistaken for machine defects
WARNING  ►Never use the projector if abnormal operations such as 
smoke, strange odor, excessive sound, damaged casing or elements or cables, 
penetration of liquids or foreign matter, etc. should occur. In such cases, 
immediately turn off the power switch and then disconnect the power plug from 
the power outlet. After making sure that the smoke or odor has stopped, contact 
your dealer or service company.
. Before requesting repair, please check in accordance 
with the following chart.  This operation sometimes 
resolves your problem. 
If the situation cannot be corrected, 
. The projector’s microprocessor may need to be reset. 
Please push the Shutdown switch by using a pin or 
similar and the projector will be turned off immediately.
Before turning it again, wait at least   0 minutes to make the projector cool down enough.
3. Some setting may be wrong. Please use the FACTORY RESET function of the 
SERVICE item in the OPTION menu (47) to reset all settings to factory default. 
Then, if the problem is not removed after the remedy, please contact your dealer 
or service company.
PhenomenonCases not involving a machine defectReference
page
Power does not 
come on.
The electrical power cord is not plugged in.
Correctly connect the power cord.3
The power switch is not set to the on position.
Set the power switch to [ | ] (On).7
The main power source has been interrupted during 
operation such as by a power outage (blackout), etc.
Please turn the power off, and allow the projector to cool 
down at least    minutes, then turn the power on again.
7
Either there is no lamp and/or lamp cover, or either 
of these has not been properly fixed.
Please turn the power off, and allow the projector to cool down 
at least 45 minutes. After the projector has sufficiently cooled 
down, please make confirmation of the attachment state of the 
lamp and lamp cover, and then turn the power on again.
59
Neither sounds
nor pictures are
outputted.
The signal cables are not correctly connected.
Correctly connect the connection cables.0
Signal source does not correctly work.
Correctly set up the signal source device by referring to the 
manual of the source device.
–
The input changeover settings are mismatched.
Select the input signal, and correct the settings.8,   9