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Dukane Imagepro 8761 Portable Projector Users Manual

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Page 121

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...

Page 122

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...

Page 123

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. 

Page 124

E-124
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TPC-CARD
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...

Page 125

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...

Page 126

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...

Page 127

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 

Page 128

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...

Page 129

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 

Page 130

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™)
Resolution1024768 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...
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