Dukane Imagepro 8751 Liquid Crystal Projector Users Manual

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Setup MenuThe following adjustments and settings are possible when SETUP is selected at the top of the menu. Part of the
Setup menu differs between RGB input and video input. Select an item with the  and buttons, and start
operation. Use the Single menu to reduce menu size (see Table 3, MENU SELECT).
VIDEO/S-VIDEOCOMPONENT
RGB
BRIGHT
CONTRAST
V POSIT
H POSIT
H PHASE
H SIZE
COLOR BAL R
COLOR BAL B
ASPECT0
-2
+1
0
0 100
100
800SETUP INPUT OPT.IMAGEBRIGHT
CONTRAST
SHARPNESS
COLOR
TINT
COLOR BAL  R
COLOR BAL  B
ASPECT0
+1
+1
0
0
0
0SETUP INPUT OPT.IMAGEBRIGHT
CONTRAST
COLOR
H PHASE
COLOR BAL  R
COLOR BAL  B
ASPECT0
+1
+1
0
0
0SETUP INPUT OPT.IMAGE
Table 4. Setup Menu
ItemDescriptionRGBVIDEOS-VIDEO
COMPONENT480i
575i
480P720P
1080i
BRIGHTDark↔Light✔✔✔✔
CONTRASTWeak↔Strong✔✔✔✔
V POSITDown↔Up✔---
H POSITLeft↔Right✔---
H PHASELeft↔Right
• Adjust to eliminate flicker.✔-✔✔
H SIZE
Small↔Large• The image may not be displayed correctly if the horizontal
size is excessive. In such cases, press the RESET button, and
initialize the horizontal size.✔---
SHARPNESSSoft↔Clear-✔--
COLORLight↔Dark-✔✔✔
TINTRed↔Green• Valid only when NTSC or NTSC 4.43 signal is received.-✔--
COLOR BAL RLight↔Dark✔✔✔✔
COLOR BAL BLight↔Dark✔✔✔✔
ASPECT
Select Image Aspect Ratio :
4:3[ ] 
↔16:9 [ ]
Select Position of Image:
Press the  button while 16:9 []
is selected.
Center
→Down→Up (→Center )
✔--✔
Select Image Aspect Ratio:
4:3[ ] ↔16:9[ ] ↔4:3 small[ ]
Select Position of Image :
Press the  button while 16:9[ ] / 4:3
small[ ] is selected.
Center
→Down→Up (→Center )• 4:3 small may not be displayed correctly with some input
signals.
-✔✔- 
						

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Input MenuThe following functions are available when INPUT is selected on the
menu. Select an item with the and buttons, and start operation.
Table 5. Input Menu
EXECUTE
CANCELAUTO
RGB
VIDEO
HDTV SETUP INPUT OPT.IMAGE
ItemDescription
AUTO
Operation Start/Stop:Press the / button.
Automatic Adjustment at RGB Input: Select the EXECUTE with the
button.Horizontal position (H.POSIT), vertical position (V.POSIT), clock
phase (H.PHASE), and horizontal size (H.SIZE) are automatically adjusted.
Use with the window at maximum size in the application display.
•This operation requires approximately 10 seconds. It may not function correctly with
some input signals. Pressing the AUTO button in this case may correct this problem.
• This function is the same as for the AUTO function in Basic operation.
RGB
Displays RGB Input Frequency:
Displays the horizontal and vertical sync signal frequencies for RGB input.
• Valid only at RGB input.
VIDEO
Operation Start/Stop:Press the  /  button.
Select Video Signal Type:Select the signal type with the  and 
buttons. Select NTSC, PAL, SECAM, NTSC4.43, M-PAL, or N-PAL as
appropriate for the input signal. The selection of AUTO enables and
executes the function AUTO (Automatic Adjustment at Video Input), except
for the N-PAL input.
• Use this function when the image becomes unstable (eg. the image becomes
irregular, or lacks color) at VIDEO/S-VIDEO input.
• Automatic Adjustment requires approximately ten seconds. It may not function
correctly with some input signals. Pressing the AUTO button in this case may correct
this problem except for the N-PAL input.
• For the COMPONENT VIDEO input, this function is not effective and the signal
type is distinguished automatically.
HDTV
Operation Start/Stop:Press the / button.
Select HDTV Mode:Select the 1080i mode or 1035i mode suitable for the
input signal with the  /  button. 
• When the selected HDTV mode is incompatible with the input signal, the image may
beincorrect (eg. the display position or color is incorrect). 
						

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Image Menu
The following adjustments and settings are available when IMAGE is
selected on the menu. Select an item with the and buttons, and 
start operation.
Table 6. Image Menu
BLANK
MIRROR
START UP
GAMMA
COLOR TEMP
SETUP INPUT OPT.IMAGE
ItemDescription
BLANKSelect Blank Screen Color:Select color with the  and  buttons.•The image is cleared and the entire screen is displayed in the selected color, when
BLANK mode is set with BLANK ON, or when there is no signal for 5 minutes.
MIRROROperation Start/Stop:Press the  /  button.
Select Mirror Status:Select mirror status with  and  buttons.
START UP
Operation Start/Stop:Press the  /  button.
Setup Initial Screen Display:Select TURN ON with the  button.
Clear Initial Screen Display:Select TURN OFF with the  button.
• Note that if TURN OFF is selected the blank screen is displayed in blue when there
is no signal.
GAMMAOperation Start/Stop:Press the  /  button.
Select Gamma Mode :Select the gamma mode with the  /  button.
COLOR
TEMPOperation Start/Stop:Press the  /  button.
Select Color Temperature:
Select the color temperature mode with the  /  button. 
						

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Options Menu
The following adjustments and settings are available when OPT. is
selected on the menu. Select an item with the and buttons, and
start operation. 
.
Table 7. Options Menu
VOLUMEMENU COLORLANGUAGE
AUTO OFF
SYNC ON G
WHISPER16
SETUP INPUT OPT.IMAGE
ItemDescription
VOLUMEVolume Adjustment:Reduce VOLUME ↔Increase VOLUME 
MENU COLORSelect Menu Background Color:Select with the  and  buttons.
LANGUAGEOperation Start/Stop:Press the  or  button.
Select Menu Display Language:Select with the  and  buttons.
AUTO OFF
Operation Start/Stop:Press the  or  button.
Set AUTO OFF:Set 1~99 minutes with the  and  buttons. The
system automatically enters the standby mode when a signal is not
received for the set time.
Clear AUTO OFF:Select STOP (0 min.) with the  button. When
STOP is selected the system does not enter the standby mode even if
no signal is received.
SYNC ON G
Operation Start/Stop:Press the  or  button.
SYNC ON G Valid:Select TURN ON with the  button.
SYNC ON G Invalid:Select TURN OFF with the  button.
• May not be displayed correctly with some input signals when SYNC ON G is
valid. In such cases, remove the signal connector so that no signal is received,
set SYNC ON G to invalid, and reconnect the signal.
WHISPER
Operation Start/Stop:Press the  or  button.
Set/Clear Wisper Mode:Press
/ button. When the WHISPER is
selected, the WHISPER mode is active. In the WHISPER mode,
acoustic noise level from the unit is reduced, brightness level on screen
is a little lower. 
						

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No Signal Menu
The same adjustments and settings are available with the Image and
Options menus when the MENU button is pressed during display of the
“NO INPUT IS DETECTED ON ***” or “SYNC IS OUT OF RANGE
ON ***” message while no signal is received.
Table 8. No Signal Menu
VOLUME
BLANK
MIRROR
START UP
MENU COLORLANGUAGE
AUTO OFF
SYNC ON G
WHISPER16
ItemDescription
VOLUME
Volume Adjustment:Reduce VOLUME ↔Increase VOLUME • When this function is used, audio input is automatically switched to video. The
audio input can be switched by moving the DISK PAD left and right during the
display of the volume adjustment bar. The volume adjustment bar is displayed by
pressing VOLUME  or VOLUME  button.
BLANK
Select Blank Screen Color:Select the color with the  and  buttons.•The image is cleared and the entire screen is displayed in the selected color,
when BLANK mode is set with BLANK ON, or when there is no signal for 5
minutes.
MIRROROperation Start/Stop:Press the  /  button.
Select Mirror Status:Select the mirror status with the  and  buttons.
START UP
Operation Start/Stop:Press the  /  button.
Setup Initial Screen Display:Select the TURN ON with the  button.
Clear Initial Screen Display:Select the TURN OFF with the  button.
• Note that if TURN OFF is selected the blank screen is displayed in blue when there is no signal.
MENU COLORSelect Menu Background Color:Select the color with the  and  buttons.
LANGUAGE
Operation Start/Stop:Press the  /  button.
Select Menu Display Language:Select the language with the  and
buttons.
AUTO OFF
Operation start/stop:Press the  /  button.
Set AUTO OFF:Set 1~99 minutes with the  and  buttons. The
system automatically enters the standby mode when a signal is not
received for the set time.
Clear AUTO OFF:Select the STOP (0 min.) with the  button. When
the STOP is selected the system does not enter the standby mode even
if no signal is received.
SYNC ON G
Operation Start/Stop:Press the  /  button.
SYNC ON G Valid:Select the TURN ON with the  button.
SYNC ON G Invalid:Select the TURN OFF with the  button.
• May not be displayed correctly with some input signals when the SYNC ON G is
valid. In such cases, remove the signal connector so that no signal is received,
set the SYNC ON G to invalid, and reconnect the signal.
WHISPER
Operation Start/Stop:Press the  /  button.
Set/Clear Wisper Mode:Press  /  button. When the WHISPER is
selected, the WHISPER mode is active. In the WHISPER mode,
acoustic noise level from the unit is reduced, brightness level on screen
is a little lower. 
						

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MAINTENANCE MAINTENANCE
Lamp
HIGH VOLTAGE
HIGH TEMPERATURE
HIGH PRESSURE
Contact your dealer before replacing the lamp.
For the optional lamp, see the item “Optional Parts” of the Table 12.
Before replacing the lamp, switch power OFF, remove the power cord from the power outlet, and
wait approximately 45 minutes until the lamp has cooled. The lamp may explode if handled at high
temperatures.
Lamp Life
Projector lamps have a finite life. The image will become darker, and hues will become weaker,
after a lamp has been used for a long period of time. 
Replace the lamp if the LAMP indicator is red, or the CHANGE THE LAMP message appears
when the projector is switched ON. See Table 9 of P.19 and Table 10 of P.20.
•The LAMP indicator is also red when the lamp unit reaches high temperature. Before
replacing the lamp, switch power OFF, wait approximately 20 minutes, and switch power ON again.
If the LAMP indicator is still red, replace the lamp.NOTE
WARNING• For disposal of used lamp, treat
according to the instruction of community
authorities.
• Since the lamp is made of glass, do not apply shock
to it and do not scratch it.
• Also, do not use old lamp. This could also cause
explosion of the lamp.
• If it is probable that the lamp has exploded (explosive
sound is heard), disconnect the power plug from the
power outlet and ask your dealer to replace lamp. The
lamp is covered by front glass, but in rare cases, the
reflector and the inside of the projector may be
damaged by scattered broken pieces of glass, and
broken pieces could cause injury when being handled.
• Do not use the projector with the lamp cover removed.
Lamp
Front
glass Reflector 
						

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Replacing the Lamp
1. Switch the projector OFF, remove the power cord from the
power outlet, and wait at least 45 minutes for the unit to cool.
2. Prepare a new lamp.
3. Check that the projector has cooled sufficiently, and gently
turn it upside down.
4. Loosen the two screws as shown in the diagram, and remove
the lamp cover.
5. Loosen the one screw, and gently remove the lamp while
holding the grips. Touching the inside of the lamp case may
result in uneven coloring.
6. Install the new lamp and tighten the one screw firmly. Also
steadily push the opposite side of the screwed lamp into the
unit.
7. Replace the lamp cover in position and tighten the two
screws firmly.
8. Gently turn the projector right-side up.
Resetting the Lamp Timer
Reset the lamp timer after replacing the lamp. When the message of “CHANGE THE LAMP …
THE POWER WILL TURN OFF AFTER 0 hr.” is displayed, complete the following operation
within 10 minutes. The power will be turned off automatically in over 10 minutes.
1. Switch power ON, and press the RESET button, for approximately three seconds. The ‘LAMP
xxxx hr’ message will appear on the lamp timer on the bottom of the screen.
2. Press the MENU button on the remote control transmitter, or the RESET button on the control
panel, while the lamp timer is displayed. The ‘LAMP xxxx 
→0 ■CANCEL’ message will
then appear.
3. Press the  and select 0, and wait until the timer display is cleared.
•Do not reset the lamp timer without replacing the lamp. Reset the lamp timer always
when replacing the lamp. The message functions will not operate  properly if the lamp timer is not
reset correctly.NOTE
CAUTION• Ensure that screws are tightened
properly. Screws not tightened fully may result
in injury or accidents.
• Do not use the projector with the lamp cover
removed. 
						

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Air Filter Maintenance
The air filter should be cleaned as described below at intervals of approximately 100 hours.
1. Switch the projector power supply OFF, and remove the power cord from the power outlet.
2. Clean the air filter with a vacuum cleaner.
Other Maintenance
Maintenance Inside the Equipment
For safety reasons, ensure that the equipment is cleaned and checked by the dealer once every two
years. Maintaining the equipment by yourself is dangerous.
Cleaning the Lens
Gently wipe the lens with lens cleaning paper. Do not touch the lens with your hands.
Cleaning the Cabinet and Remote control transmitter
Gently wipe with a soft cloth. If dirt and stains etc. are not easily removed, use a soft cloth
dampened with water, or water and a neutral detergent, and wipe dry with a soft, dry cloth.
CAUTION• Switch power OFF and remove the power cord from the power
outlet before beginning maintenance work. Please read the separate “SAFETY
INSTRUCTIONS” thoroughly to ensure that maintenance is performed correctly.
• Do not use detergents or chemicals other than those noted above (e.g. benzene
or thinners).
• Do not use cleaning sprays.
• Do not rub with hard materials, or tap the equipment.
CAUTION• Switch power OFF and remove the power cord from the power
outlet before beginning maintenance work. Please read the separate “SAFETY
INSTRUCTIONS” thoroughly to ensure that maintenance is performed correctly.
• Replace the air filter if contamination cannot be removed, or if it is damaged.
Contact your dealer in such case. For the optional air filter, see the item “Optional
Parts” of the Table 12. 
• Do not use the equipment with the air filter removed.
• When the air filter is clogged with dust etc. the power supply is switched OFF
automatically to prevent the temperature rising inside the projector. 
						

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TROUBLESHOOTING TROUBLESHOOTING
OSD Message
The messages as described below may appear on the screen at power ON. Take the appropriate
measures when such messages appears.
Table 9. OSD Messages
MessageContents
CHANGE THE LAMP
AFTER REPLACING LAMP,
RESET THE LAMP TIME.
(
*1)
The usage time of lamp will be reaching 2000 hr
shortly.	

It is recommended to replace the lamp soon.  Prepare a
new lamp as a replacement.
CHANGE THE LAMP
AFTER REPLACING LAMP,
RESET THE LAMP TIME.
THE POWER WILL TURN OFF
AFTER
**hr.
(*1)
The usage time of lamp will be reaching 2000 hr shortly.
It is recommended to replace the lamp within * *
hours.	

It might be happened that the lamp is cut off before * * hr
by any chance.  Power will be switched OFF
automatically in * * hours.  Replace the lamp as shown in
P.17~18 “Lamp”.  Always reset the lamp timer after
replacing the lamp. 
CHANGE THE LAMP
AFTER REPLACING LAMP,
RESET THE LAMP TIME.
THE POWER WILL 
TURN OFF
AFTER 0 hr.The usage time of lamp is about to reach.  Power will be
switched OFF in a few minutes.	

Switch power OFF immediately and replace the lamp as
shown in P.17 ~18 “Lamp”.  Always reset the lamp timer
after replacing the lamp. 
NO INPUT IS DETECTED
ON***No input signal found.
Check signal input connections and signal sources.
SYNC IS OUT OF RANGE
ON***
The horizontal or vertical frequency of the input signal is
not within the specified range.
Check the specifications of the equipment and the signal
source.
(*1) This message is cleared automatically after approximately three minutes, and
appears every time power is switched ON.
(*2) The unit has a function to turn the power off which will be active when the usage time reaches
2000 hr.  However the life of lamp might be much different among lamps, so that it might be
happened that a lamp is cut off before the function is active. NOTE 
						

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Indicators Message
The POWER indicator, LAMP indicator, and TEMP indicator are lit and blank as follows. Take the
appropriate measures.
Table 10. Indicators Message
POWER
indicatorLAMP
indicator
TEMP
indicatorContents
Lights
orangeTurns offTurns offThe Standby mode has been set.
Blinks
greenTurns offTurns offWarming up. Please wait.
Lights
greenTurns offTurns offON. Normal operation possible.
Blinks
orangeTurns offTurns offCooling. Please wait.
Blinks red--Cooling. Please wait. 
The error is found. Take the appropriate measures when the
POWER indicator ceases blinking 
Blinks
/Lights redLights
redTurns off
Lamp is not lit.
The interior of the equipment may be too hot. Switch power OFF,
wait 20 minutes until the equipment cools, and check whether the
ventilation openings are  blocked, whether the air filter is dirty, or
whether the ambient temperature exceeds 35 °C. And switch
power ON again. Replace the lamp if the same problem occurs.
Blinks
/Lights redBlinks
redTurns off
Lamp or lamp cover is not found, or hasn’t been fitted in correctly.
Switch power OFF, and wait for 45 minutes until the equipment
cools. Check fitting of the lamp and lamp cover, and switch power
ON again. Contact your dealer if the same problem occurs again.
Blinks
/Lights redTurns offBlinks
redThe cooling fan is not operating.
Switch power OFF, and wait for 20 minutes until the equipment
cools. Check for foreign matters in the fan, and switch power ON
again. Contact your dealer if the same problem occurs again.
Blinks
/Lights redTurns offLights red
The interior of the equipment is too hot. *2)
Switch power OFF, and wait for 20 minutes until the equipment
cools. Check whether the ventilation openings are  blocked,
whether the air filter is dirty, or whether the ambient temperature
exceeds 35 °C. Then switch power ON again. Contact your dealer if
the same problem occurs again.
Lights
greenBlinks
redBlinks
redThe interior of the equipment is too cool.
Check whether the ambient temperature is below 0°C. Contact your
dealer if the same problem occurs when the ambient temperature is
0~35°C.
*2) When the internal temperature becomes excessive power is switched OFF
automatically for safety reasons, and the indicator is extinguished. Set the power switch to [
O] and
wait for 20 minutes until the equipment has cooled sufficiently.
NOTE