Dukane Imagepro 8761 Portable Projector Users Manual

							E-121
MAINTENANCE
This section describes the simple maintenance procedures you should
follow to replace the lamp, and to clean the cabinet and the lens.
Replacing the Lamp
After your lamp has been operating for 2000 hours (up to 3000 hours : Eco
mode) or longer, the Lamp indicator in the cabinet will blink red and the
message will appear. Even though the lamp may still be working, replace
it at 2000 hours (up to 3000 hours : Eco mode) to maintain optimal pro\
jec-
tor performance.
CAUTION
•DO NOT TOUCH THE LAMP immediately after it has been used. It
will be extremely hot. Turn the projector off, wait 90 seconds, turn off
the main power switch, and then disconnect the power cable. Allow
at least one hour for the lamp to cool before handling.
• DO NOT REMOVE ANY SCREWS except the lamp cover screw and
two lamp case screws. You could receive an electric shock.
• The projector will turn off and go into stand by mode after 2100 hours
(up to 3100 hours : Eco mode) of service. If this happens, be sure to
replace the lamp. If you continue to use the lamp after 2000 hours
(up to 3000 hours : Eco mode) of use, the lamp bulb may shatter, and
pieces of glass may be scattered in the lamp housing. Do not touch
them as the pieces of glass may cause injury.
If this happen s, contact  your dealer  for lamp replacement. 
						

							E-122
MAINTENANCE
Interlock
To replace the lamp:
1. Loosen the lamp cover screw until the screwdriver goes into a freewheel-
ing condition and remove the lamp cover. The lamp cover screw is not
removable.
2. Loosen the two screws securing the lamp housing until the screwdriver
goes into a freewheeling condition. The two screws are not removable.
3. Remove the lamp housing by pulling out the handle.
NOTE: There is an interlock on this case to prevent the risk of electrical shock.
Do not attempt to circumvent this interlock. 
						

							E-123
MAINTENANCE
4. Insert a new lamp housing until the lamp housing is plugged into the
socket.
CAUTION
Do not use a lamp other than the NEC replacement lamp (LT60LPK).
5. Secure it in place with the two screws.
Be sure to tighten the screws.
6. Reattach the lamp cover.
7. Tighten the lamp cover screw.
Be sure to tighten the screw. 
						

							E-124
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8. After you install a new lamp, from the menu select [Projector Options] →
[Setup] → [Page 4] → [Clear Lamp Hour Meter] to reset the lamp usage
hours.
If the projector will not be turned on after using 2100 hours (up to 3100
hours : Eco mode) of service, press and hold the [Help] button on the
remote control for ten seconds or longer to reset the lamp time clock to
zero.
Cleaning
Cleaning the Cabinet and the Lens
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1. Turn off the projector before cleaning.
2. Clean the cabinet periodically with a damp cloth. If heavily soiled, use a
mild detergent. Never use strong detergents or solvents such as alcohol or
thinner.
3. Use a blower or lens paper to clean the lens, and be careful not to scratch
or mar the lens.
MAINTENANCE 
						

							E-125
Lens Protector
The lens barrel has threads on the outside for mounting a commercially
a
vaila ble lens protector  (φ  62mm  for  8761  and  φ  72mm  for  8760 ) to
protect the lens from dirt, dust, scratches and damage. Note that both a
lens protector and the supplied lens cap cannot be used at the same time\
.
CAUTION:  Use only transparent lens protectors designed for lens protec-
tion. Use of filters for light reduction and special effects, such as ND (Neu-
tral Density) filters and color filters, can absorb heat, resulting in damage
to the filter and the projector.
MAINTENANCE 
						

							E-126
TROUBLESHOOTING
This section helps you resolve problems you may encounter while setting up or
using the projector.
Power Indicator
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightGreen blinking
Green blinking
Orange blinking0.5 sec ON,
0.5 sec OFF
2.5 sec ON,
0.5 sec OFF
0.5 sec ON,
0.5 sec OFFThe main power is off
The projector is getting ready
to turn on.
The projector is in Sleep mode.
The projector is cooling down.
The projector is turned on.
The projector is in Standby or
Idle. Green
Orange–
Wait for a moment.
–
Wait for a moment.
–
–
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightRed blinking
Green blinking
Orange
Green1 cycle (0.5 sec ON,
2.5 sec OFF)
2 cycle (0.5 sec ON,
0.5 sec OFF)
3 cycle (0.5 sec ON,
0.5 sec OFF)
4 cycle (0.5 sec ON,
0.5 sec OFF)
6 cycle (0.5 sec ON,
0.5 sec OFF)Normal
Lamp cover error
Temperature error
Power error
Fan error
Lamp error
Re-firing the lamp
Control key locked
Idle condition–
Replace the lamp
cover correctly.
The projector is
overheated. Move
the projector to a
cooler location.
Power unit will not
work correctly.
Fans will not work
correctly.
Lamp fails to light.
Wait a full minute and
then turn on again.
The projector is re-
firing.
You have pressed
control panel key
when Control Key
Lock is enabled.
–
Status Indicator 
						

							E-127
TROUBLESHOOTING
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightNormal
Lamp has reached its end of
life. Lamp replacement mes-
sage will be displayed.
Lamp has been used beyond
its limit. The projector will not
turn on until the lamp is re-
placed.
Lamp mode is set to Eco mode Red
Red
Green–
Replace the lamp.
Replace the lamp.
–
Lamp Indicator 
						

							E-128
Does not turn on
No picture
Image isn’t square to the
screen
Picture is blurred
Image is scrolling verti-
cally, horizontally or
both
Remote control does
not work
Indicator is lit or blink-
ing
Cross color in RGB
mode
USB mouse does not
work•Check that the power cable is plugged in and that the power button on the projector
cabinet or the remote control is on. See pages E-35 and 36.
•Ensure that the lamp cover is installed correctly. See page E-123.
•Check to see if the projector has overheated or the lamp usage exceeds 2100 hours
(up to 3100 hours : Eco mode). If there is insufficient ventilation around the projec-
tor or if the room where you’re presenting is particularly warm, move the projector
to a cooler location.
•Use the menu to select your source (RGB 1/2, Video, S-Video, Viewer or LAN). See
page E-39.
•Ensure your cables are connected properly.
•Use menus to adjust the brightness and contrast. See page E-85.
•Remove the lens cap.
•Reset the settings or adjustments to factory preset levels using the Factory Default
in the Adjustment Menu. See page E-120.
•Reposition the projector to improve its angle to the screen. See page E-41 or 42.
•Use the 3DReform function to correct the trapezoid distortion. See page E-44.
•Adjust the focus. See page E-43.
•Reposition the projector to improve its angle to the screen. See page E-41 or 42.
•Ensure that the distance between the projector and screen is within the adjustment
range of the lens. See page E-22-26.
•Condensation may form on the lens if the projector is cold, brought into a warm
place and is then turned on. Should this happen, let the projector stand until there is
no condensation on the lens.
•Use menus or Source button on the remote control or the cabinet to select the
source you want to input.
•Install new batteries. See page E-19.
•Make sure there are no obstacles between you and the projector.
•Stand within 22 feet (7 m) of the projector. See page E-20.
•Make sure that you are in the Projector mode and the PJ button lights in red. If not,
press the PJ button. See page E-52.
•See the Status Indicator on pages E-126 and 127.
•If Auto Adjust is off, turn it on or adjust the image manually with the Position/Clock
in the Image Options. See pages E-87, 88 and 98.
•Make sure that your USB mouse is properly connected to the projector.
The projector may not support some brands of a USB mouse.
Problem Check These  Items
Common Problems & Solutions
TROUBLESHOOTING 
						

							E-129 When using the Viewer function
TROUBLESHOOTING
•Is “Viewer” selected from the Source menu?
•Is the PC card seated in the PC Card slot completely?
•Are slide data stored in the PC card?
•Have the contents of the PC card been destroyed?
•Use a computer, etc., to repair the data.
Problem Check These  Items
For more information contact your dealer. No picture
Contents of PC Card are
damaged 
						

							E-130
SPECIFICATIONS
This section provides technical information about the LT260K/LT240K Projectors
performance
Model Number LT260K/LT240K
Optical
DMD™ Single Chip Digital Micromirror Device(DMD™)
Resolution1024
768 pixels* up to UXGA with Advanced AccuBlend
Lens Manual zoom and focus: 8761: F2.2 - 2.5    f=28.4mm - 34.0mm
8760 : F2.5 - 2.8    f=22.4mm - 27.0mm
Lamp 220 W DC standard
Image Size 30 inches - 500 inches (0.8 m - 12.7 m) diagonal
Projection Distance  8761: 3.8ft - 80.7ft / 1.18m - 24.6m
8760 : 2.95ft - 62.3ft / 0.90m - 19.0m
Projection Angle  8761: 14.7°-15.2°(wide) / 12.2°-12.4°(tele)
8760 : 18.6°-19.4°(wide) / 15.7°-16.2°(tele)
Electrical
Inputs 2 RGB, 1 S-Video, 1 Video, 1 PC Card, 1 Stereo Mini Audio, 1 (L/R) RCA Audio, 1 PC Control
Outputs 1 RGB, 1 Stereo Mini Audio
USB Port 1 A Type, 1 B Type
Video Compatibility NTSC,  NTSC4.43, PAL, PAL-60, PAL-N, PAL-M, SECAM,
HDTV:1080i, 720p, 480p, 480i (w/optional cable)
Scan Rate Horizontal: 15 kHz to 100 kHz (RGB: 24 kHz or over) Ve rtical: 50 Hz to 120 Hz
Video Bandwidth RGB: 100 MHz (-3dB)
Pixel Clock Freq Less than 135 MHz
Color Reproduction 16.7 million colors simultaneously, Full color
Horizontal Resolution NTSC / NTSC4.43/PAL / YCbCr: 540 TV lines SECAM: 300 TV lines
RGB: 1024 dots (H)
768 dots (V)
* Effective pixels are more than 99.99%.