Dukane Imagepro 8755h Projector Users Manual

							6
Troubleshooting
Regarding the indicator lamps (continued)
• When the interior portion has become overheated, for safety purposes, 
the projector is automatically shut down, and the indicator lamps may also be 
turned off. In such a case, disconnect the power cord, 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.NOTE
POWER 
indicator LAMP 
indicator TEMP 
indicator Description
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 
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 set FAN 
SPEED of SERVICE item in OPTION menu to HIGH 
( 43).
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 “
Cleaning and replacing 
the 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.
Shutting the projector down
Only when the projector can not be turned off by usual 
procedure (
14) , please push the shutdown switch 
using a pin or similar, and disconnect the power plug from 
the power outlet. Before turning it on again, wait at least 
10 minutes to make the projector cool down enough.
Resetting all settings
When it is hard to correct some wrong settings, the FACTORY RESET function of 
SERVICE item in OPTION menu (
 44) can reset all settings(except LANGUAGE, 
FILTER TIME, LAMP TIME, FILTER MESSAGE settings and etc.) to the factory 
default.
Shutdown switch 
						

							6
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects
About the phenomenon confused with a machine defect, check and cope with it 
according to the following table.
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. 
The main power source has been interrupted during 
operation such as by a power outage (blackout), etc.
Please disconnect the power plug from the power outlet, 
and allow the projector to cool down at least 10 minutes, 
then turn the power on again.11, 14
Either there is no lamp and/or lamp cover, or either 
of these has not been properly fixed.
Please turn the power off and disconnect the power plug from 
the power outlet, 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.54, 55
Neither sounds
nor pictures are outputted.
The signal cables are not correctly connected.
Correctly connect the connection cables. 9
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.
15, 16
The BLANK function for pictures and the MUTE 
function for sounds are working.
AV Mute may be active. Refer to the item “Sound does not 
come out” and “No pictures are displayed” on the next page 
to turn off the MUTE and BLANK functions.15, 20
(Continued on next page) 
						

							63
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
PhenomenonCases not involving a machine defectReference 
page
Sound does not  come out.
The signal cables are not correctly connected.
Correctly connect the audio cables. 9
The MUTE function is working.
Restore the sound pressing MUTE or VOLUME button on 
the remote control. 5
The volume is adjusted to an extremely low level.
Adjust the volume to a higher level using the menu function 
or the remote control. 5
The AUDIO/SPEAKER setting is not correct.
Correctly set the AUDIO/SPEAKER in AUDIO menu.
35
No pictures are  displayed.
The lens cover is attached.
Remove the lens cover. 4, 14
The signal cables are not correctly connected.
Correctly connect the connection cables. 9
The brightness is adjusted to an extremely low level.
Adjust BRIGHTNESS to a higher level using the menu 
function.24, 25
The computer cannot detect the projector as a plug 
and play monitor.
Make sure that the computer can detect a plug and play 
monitor using another plug and play monitor. 
 0
The BLANK screen is displayed.
Press BLANK button on the remote control.
0
(Continued on next page) 
						

							64
Troubleshooting
• Although bright spots or dark spots may appear on the screen, this 
is a unique characteristic of liquid crystal displays, and it does not constitute or 
imply a machine defect. NOTE
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon
Cases not involving a machine defectReference 
page
Video screen
display freezes. The FREEZE function is working.
Press FREEZE button to restore the screen to normal.

 0
Colors have a faded- out
appearance, or Color tone is  poor.
Color settings are not correctly adjusted.
Perform picture adjustments by changing the COLOR 
TEMP, COLOR, TINT and/or COLOR SPACE settings, 
using the menu functions. 24, 26, 
30
COLOR SPACE setting is not suitable.
Change the COLOR SPACE setting to AUTO, RGB, 
SMPTE240, REC709 or REC601.  30
Pictures appear  dark.
The brightness and/or contrast are adjusted to an 
extremely low level.
Adjust BRIGHTNESS and/or CONTRAST settings to a 
higher level using the menu function. 24, 25
The WHISPER function is working.
Select NORMAL for WHISPER item in the SETUP menu.
24, 34
The lamp is approaching the end of its product 
lifetime.
Replace the lamp.54, 55
Pictures appear blurry.
Either the focus and/or horizontal phase settings are 
not properly adjusted.
Adjust the focus using the focus ring, and/or H PHASE 
using the menu function. 17, 29
The lens is dirty or misty.
Clean the lens referring to the section “Caring for the lens”.
58
RS-232C does  not work.
The SAVING function is working.
Select NORMAL for STANDBY MODE item in the SETUP 
menu. 34 
						

							65
Specifications
Specifications
Specifications
Item Specifications
Product name Liquid crystal projector
Liquid 
Crystal 
Panel Panel size 1.6 cm (0.63 type)
Drive system TFT active matrix
Pixels 786,432 pixels (1024 horizontal x 768 vertical)
Lens Zoom lens   
8755H
                        : F=2.3~2.5  f=18.9~22.6
TBD : F=1.6~1.8  f=18.9~22.6
8916: F=1.6~1.8  f=18.9~22.6              (approximately)
Lamp 8755H                         
: 220W UHB
8916CP                       : 230W UHB
Audio output 7 W
Power supply AC 100-120V/3.5A, AC220-240V/1.5A
Power consumption
320W
Temperature range 5 ~ 35°C (Operating)
Size 340 (W) x 100 (H) x 270 (D) mm   *Excluding protrusions
Please refer to the following figure.
Weight (mass) approx. 3.5 kg
Ports Computer input port
COMPUTER IN1  
 ....................D-sub 15 pin mini x1
COMPUTER IN2  
 ....................D-sub 15 pin mini x1
Computer output port MONITOR OUT  
 ....................D-sub 15 pin mini x1
Video input port COMPONENT (Y, Cb/Pb, Cr/Pr)  
 ........................................ RCA x3
S-VIDEO .......... mini DIN 4 pin x1
VIDEO ............................. RCA x1 Audio input/output port
AUDIO IN1
 ........... Stereo mini x1
AUDIO IN2 ........... Stereo mini x1
AUDIO IN3 ...................... RCA x2
AUDIO OUT ......... Stereo mini x1
Others USB
 ..............................USB-B x1
CONTROL ............ D-sub 9 pin x1
Optional parts Lamp
 : 456-8755H
Air filter
 : MU05611
 *For more information, contact to your dealer. 
						

							66
Specifications
Specifications (continued)
[unit: mm]
340
100
112 270