Dukane 8755D Projector User Manual

							
39

Multifunctional settings
ItemDescription
SERVICE
Selecting this item displays the SERVICE menu.Select an item using the buttons ▲/▼, and press the button ► or the ENTER button on the remote control to execute the item.FAN SPEED   AUTO ADJUST   GHOST  KEY LOCK  FILTER MESSAG  FACTORY RESET       FAN SPEEDUsing the buttons ▲/▼ switches the rotation speed of the cooling 
fans. The HIGH is the mode for use at highlands etc. Note that the projector is noisier when the HIGH is selected.
HIGH  NORMAL
AUTO ADJUST
Using the buttons ▲/▼ enables/disables the automatic adjustment.When DISABLE is selected, the automatic adjustment feature is disabled, although rough adjustment is automatically performed depending on the basic setting.
ENABLE  DISABLE
• Depending on conditions, such as input image, signal cable to the 
projector, environment around the projector, etc., the automatic adjustment 
may not work correctly.  In such a case, please choose DISABLE to 
disable the automatic adjustment, and make adjustment manually.
GHOST
1.  Select a color element of ghost using the buttons ◄/►. 2.  Adjust the selected element using the buttons ▲/▼ to disappear ghost.
KEY LOCKUsing  the  buttons  ▲/▼  turns  on/off  the  key  lock  feature.  When  TURN  ON  is 
selected, the buttons on the projector except the STANDBY/ON button are locked.
TURN ON   TURN OFF• Please use to avoid a mischief and touching accidentally. This 
function does not have any effect on the remote control.
FILTER MESSAGE
Use the ▲/▼ button to set the timer for the interval to show the 
message for cleaning up the air filter. 
50h  100h  200h  300h   TURN OFFAfter selecting “50h”, “100h”, “200h”, or “300h”, the message 
“CLEAN THE AIR FILTER” will appear after the timer reaches the 
interval time set by the menu. (38) When the “TURN OFF” is 
chosen, the air filter cleaning message will not appear.
•  Please check and clean the air filter periodically, even if there is no 
message. If the air filter becomes to be blocked by dust or others, 
the internal temperature will rise, which could cause malfunction, or 
reduce the lifetime of the projector.
• It is recommended to choose “100h” in general. Please be careful with the operating environment of the projector and the condition of 
the air filter, especially when the “200h”, “300h or “TURN OFF” is chosen. 
FACTORY RESET
Selecting RESET using the button ▲ performs this function.  By this function, all the items in all of menus will collectively return to the initial setting. Note 
that the items LAMP TIME, FILTER TIME and LANGUAGE are not reset.
RESET  CANCEL
OPTION Menu (continued) 
						

							
40

Maintenance
Maintenance
Lamp
 WARNING HIGH VOLTAGE HIGH TEMPERATURE HIGH PRESSURE
►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 
inside of the projector, 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 
the  ceiling.  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. To replace the 
lamp,  make  sure  that  the  screws  are  tightened  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 burst 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 
						

							
41

Lamp (continued)
A lamp has a 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 = 
DT00731.
1. Turn the projector off, and unplug the power cord. Allow the lamp to cool for 
at least 45 minutes.
2. Prepare a new lamp.  
If the projector is mounted on the ceiling, or if the lamp has broken, also ask 
the dealer to replace the lamp.
In the case of replacement by yourself,
3. Loosen the lamp cover screw (marked by arrow) 
and then slide the lamp cover to the side to 
remove it.
4. Loosen the 2 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 two 
screws that are loosened in the previous process 
to lock it in place.
6. Slide the lamp cover back in place and firmly 
fasten the lamp cover screws.
7. Turn the projector on and reset the lamp time 
using the LAMP TIME function in the OPTION 
menu (38). 
(1) Press the MENU button to display a menu. Only  when the EASY MENU has appeared, please 
perform the next step (2).
(2) Point at the “Go To Advance Menu …” in the menu 
using ▼/▲ button, then press the ► button. 
(3) Point at the “OPTION” in the left column of the 
menu using ▼/▲ button, then press the ► button.
(4) Point at the ”LAMP TIME” using ▼/▲ 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
Lamp cover
Screw
Handle
Screws 
NOTE  • Please reset the lamp time only when you have replaced the lamp, 
for a suitable indication about the lamp. 
						

							
42

If the air filter becomes clogged by dust or the like, internal temperatures rise and 
could cause a fire, a burn and/or malfunction to the projector. When the indicators 
or  a  message  prompts  you  to  clean  the  air  filter,  clean  the  air  filter  as  soon  as 
possible.
Please  check  and  clean  the  air  filter  periodically,  even  if  there  is  no  message.
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 your dealer and tell the  air filter type number.
Type number = NJ22222
And  also  when  you  replace  the  lamp,  please  replace  the  air  filter. An  air  filter  of 
specified type will come together with a replacement lamp for this projector .
1. Turn the projector off, and unplug the 
power cord. Allow the lamp to cool for at 
least 45 minutes.
2. When the projector is suspended from 
the ceiling, apply the vacuum cleaner to 
and around the filter cover first, to prevent 
penetration of dust or the like.
3. While supporting the projector with one 
hand, use your other hand to pull the filter 
cover forward in the direction of the arrow. 
Remove the air filter.
Maintenance
WARNING  ►Before caring, make sure the power switch is off and the 
power cable is not plugged in, then allow the projector to cool suffi ciently. The 
care in a high temperature state of the projector could cause an electric shock, 
a burn and/or malfunction to the projector.
►Use only the air filter of the specified type. Do not use the projector with the 
air filter and the filter cover removed. It could result in a fire and/or malfunction 
to the projector.
►The air filter should be cleaned periodically. If the air filter becomes clogged 
by dust or the like, internal temperatures rise and could cause a fire, a burn 
and/or malfunction to the projector.
Air filter
Handle
Filter cover
NOTE  • Please replace the air filter when it is damaged or too soiled, and 
also when you replace the lamp.
• Please reset the filter time only when you have cleaned or replaced the air 
filter, for a suitable indication about the air filter.
 (38)
•  The projector may display the message such as “CHECK THE AIR FLOW” or 
turn off the projector, to prevent the internal heat level rising. 
						

							
43

Maintenance
4. Apply a vacuum cleaner to the air filter 
and the filter cover. Please replace the air 
filter when it is damaged or too soiled.
5. Replace the air filter in its original 
position. Secure the air filter in place by 
pressing each of the six 
locations. 
Make sure there is no dust or dirt 
remaining after the cover is in place. If any 
dust or dirt remains use a vacuum cleaner 
to remove it as when placing the filter 
cover on the air filter.
 
Reattach the filter cover to the projector by 
aligning the filter cover with the grooves 
on the projector. While holding the handle, 
push down on the filter cover until it locks 
firmly in place.
6. Turn the projector on and reset the filter 
time using the FILTER TIME function in the 
OPTION menu (38). 
(1) Press the MENU button to display a menu. When the EASY MENU has 
appeared, please skip the next step (2).
(2) Point at the “OPTION” in the left column of the menu using ▼/▲ button, then 
press the ► button.
(3) Point at the “FILTER TIME” using ▼/▲ button, then press the ► button. A 
dialog will appear.
(4) Press the ▲ button to select “RESET” on the dialog. It performs resetting the 
lamp time. 
Air filtre (continued)
Filter cover 
Air filter Air filter’s 
 knob

mark

Model 8755D-RJ Only!
Internal Clock Battery
Replacement of battery is discribed on page 45.  The clock will not function 
correctly when the battery is expended. A dead battery will cause the clock to 
indicate wrong or stopped time. 
						

							
44

Maintenance
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 suffi ciently. 
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 a container containing water, cleaner 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 cleaner or chemicals other than those listed below. 
►Do not polish or wipe with hard objects.
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.
1. Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently
.
2. 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.
1. Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently.
2. After making sure that the projector is cool adequately , lightly wipe  with gauze 
or a soft cloth. 
If soiling is severe, 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  
						

							
45
1. Turn the projector off, and unplug the power cord. Allow the 
projector to cool sufficiently.
2. 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 terminal  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
Maintenance
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 fi re. 
And also improper use may result in cracking or leakage, which could result in fi re, 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 loading a battery .If the battery is placed in the battery holder upside-down, it may be hard to remove.• Keep a battery away from children and pets. If swallowed consult a physician 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.
Replacing Internal Clock batter y (8755D-RJ only!) 
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  • 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 replacing the battery.
(Please refer to page 76 - Network Functions: Date/Time Settings for more information.)
If the battery is placed in the battery holder upside-down, follow the procedure below to remove 
and reload it properly.
1. Remove the battery cover as described in steps 1 through 3 above.
2. 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 the 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. 
						

							
46 
						

							
47
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 follow 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 dealer 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 DETECTEDON ***
There is no input signal. 
Please confirm the signal input connection, and the status 
of the signal source.
SYNC IS OUT OF RANGEON ***  fH  *****kHz  fV  *****Hz
The horizontal or vertical wavelength of the input signal 
is out of the response parameter range of this unit.
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 ind ication 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. 
After you have cleaned or changed the air filter, please be 
sure to reset the filter timer.  (
38). 
						

							
48
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 contact your dealer 
or service company.
POWER 
indicatorLAMP indicatorTEMP indicatorDescription
Lighting
In Orange
Turned
offTurnedoff
The projector is in a standby state.
Please refer to the section “Power On/Off”.
Blinking
In Green
Turned
offTurnedoff
The projector is warming up.
Please wait.
Lighting
In Green
Turned
offTurnedoff
The projector is in an on state.
Ordinary operations may be performed.
Blinking
In Orange
Turned
offTurnedoff
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 20 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.