Dukane Imagepro 8751 Liquid Crystal Projector Users Manual

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Symptom
Before requesting repair, check in accordance with the following chart. If the situation cannot be
corrected, then contact your dealer.
Table 11. Symptom
SymptomPossible causeRemedyPage
The power is not
turned on.
The main power switch is not
turned on.Turn on the main power switch.
7,8The power cord is
disconnected.Plug the power cord into an AC
power outlet.
No video or audio.The input is not correctly set.Use the projector or remote control
transmitter to set.9
No signal input.Connect correctly.6,7
Video is present but
no audio.
The projector is not correctly
connected.Connect correctly.6,7
The volume is set to minimum.Press VOLUME  on the remote
control or display the menu screen
and adjust the volume.10,14
Mute is turned on.Press the MUTE button.10
Audio is present but
no video.
The projector is not correctly
connected.Connect correctly.6,7
The brightness is set to
minimum.Select BRIGHT with the MENU
button and the press the  button.11
The slide lens door is still
closed.Open the slide lens door.8
Colors are pale and
color matching is
poor.Color density and color
matching are not correctly
adjusted.Adjust the video.11
Images are dark.
Brightness and contrast are not
correctly adjusted.Adjust the video.11
The lamp is nearing the end of
its service life.Replace with a new lamp.16,17
Images are blurred.Focus or H PHASE is out of
adjustment.Adjust the focus or H PHASE.8,11 
						

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SPECIFICATIONS
SPECIFICATIONS
Table 12. Specifications
•
This specifications are subject to change without notice.NOTE
ItemSpecification
Product nameLiquid crystal projector
Liquid 
crystal
panelPanel size1.8 cm (0.7 type)
Drive systemTFT active matrix
Pixels 786,432 pixels (1024 horizontal x 768 vertical)
LensZoom lens F=2.0 ~ 2.3  f=18 ~ 21 mm
Lamp150 W UHB
Speaker1.0 W
Power supplyAC100 ~ 120V, 2.7A / AC220 ~ 240V, 1.3A
Power consumption240 W
Temperature range0 ~ 35°C (Operating)
Size289 (W) x 84 (H) x 215 (D) mm
Weight (mass)CP-S225W : 2.4 kg  
CP-X275W : 2.5 kg
RGB 
signal
inputRGB IN
Video: Analog 0.7Vp-p, 75 Ωterminator (positive)
H/V. sync.: TTL level (positive/negative) 
Composite sync.: TTL level 
D-sub 15-pin shrink jack
AUDIO IN200mVrms, 47 k Ω(max. 3.0Vp-p)
Stereo mini jack
Video 
signal
input
VIDEO1.0Vp-p, 75 Ωterminator
RCA jack
S-VIDEO
Brightness signal: 1.0Vp-p, 75 Ωterminator
Color signal: 0.286Vp-p (NTSC, burst signal), 75 Ωterminator
0.3Vp-p (PAL/SECAM, burst signal), 75 Ωterminator
Mini DIN 4-pin jack
COMPONENT 
VIDEOY1.0 Vp-p, 75  ΩTerminator (Positive)
CB/CR0.7 Vp-p, 75  ΩTerminator (Positive)
PB/PR0.7 Vp-p, 75  ΩTerminator (Positive)
AUDIOL200mVrms, 47 k Ω(max. 3.0Vp-p)
RCA jack
R
Control 
functionsCONTROLD-sub 15-pin shrink plug
Optional PartsLamp: DT00401 (CP-S225W) / DT00461 (CP-X275W) 
Air Filter: MU01461
* For others, consult your dealer. 
						

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WARRANTY AND AFTER-SERVICE WARRANTY AND AFTER-SERVICE
If a problem occurs with the equipment, first refer to the P.20 “TROUBLESHOOTING” section and
run through the suggested checks. If this does not resolve the problem contact your dealer or service
company. They will tell you what warranty condition is applied. 
						

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TECHNICAL TECHNICAL
TECHNICAL
Dimension Diagram
289
84
52.5
74.5
215
60
Unit : mm
2. Mini Din 4-pin Connector (S-VIDEO)
Pin NoSignal
1Color:0.286Vp-p (NTSC, burst signal),75Ωterminator
0.3Vp-p (PAL/SECAM, burst signal),75Ωterminator
2Brightness:1.0Vp-p, 75Ωterminator
3Ground
4Ground
Signal Connector Pin Assignment
1. D-sub 15-pin Shrink Connector (RGB IN)

  
 

  	





 
 


 

Pin NoSignalPin NoSignal
1Video input Red9-
2Video input Green10Ground
3Video input Blue11-
4-12SDA(DDC)
5Ground13H. sync./ Composite sync.
6Ground Red14Vertical sync
7Ground Green15SCL(DDC)
8Ground Blue 
						

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Example of computer signal
Resolution
H×
VfH (kHz)fV (Hz)RatingSignal modeDisplay mode
CP-S225WCP-X275W
720×40037.985.0VESATEXTZoom inZoom in
640×48031.559.9VESAVGA (60Hz)Zoom inZoom in
640×48035.066.7Mac13"modeZoom inZoom in
640×48037.972.8VESAVGA (72Hz)Zoom inZoom in
640×48037.575.0VESAVGA (75Hz)Zoom inZoom in
640×48043.385.0VESAVGA (85Hz)Zoom inZoom in
800×60035.256.3VESASVGA (56Hz)Zoom in
800×60037.960.3VESASVGA (60Hz)Zoom in
800×60048.172.2VESASVGA (72Hz)Zoom in
800×60046.975.0VESASVGA (75Hz)Zoom in
800×60053.785.1VESASVGA (85Hz)Zoom in
832×62449.774.5Mac16"modeZoom outZoom in
1024×76848.460.0VESAXGA (60Hz)Zoom out
1024×76856.570.1VESAXGA (70Hz)Zoom out
1024×76860.075.0VESAXGA (75Hz)Zoom out
1024×76868.785.0VESAXGA (85Hz)Zoom out
1152×86467.575.0VESASXGA (75Hz)Zoom outZoom out
1280×96060.060.0VESASXGA (60Hz)Zoom outZoom out
1280×102464.060.0VESASXGA (60Hz)Zoom outZoom out
•Some computers may have multiple display screen modes. Use of some of these modes
will not be possible with this projector.
• Be sure to check jack type, signal level, timing and resolution before connecting this projector to a
computer.
• Depending on the input signal, full-size display may not be possible in some cases. Refer to the
number of display pixels above.
• The image might be something wrong with computer by computer on the digital RGB mode. In
this case, it is recommended to reduce the resolution and / or reflesh rate.NOTE 
						

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Initial set signals
The following signals are used for the initial settings.
The signal timing of some computer models may be different. In such case, refer to adjust the
V.POSIT and H.POSIT of the menu.




Display interval c
Back porch b
Sync aFront porch d
Display interval c
Back porch b
Sync aFront porch d
Computer /
SignalHorizontal signal timing (µs)
abcd
TEXT2.03.020.31.0
VGA (60Hz)3.81.925.40.6
Mac 13"mode2.13.221.22.1
VGA (72Hz)1.33.820.31.0
VGA (75Hz)2.03.820.30.5
VGA (85Hz)1.62.217.81.6
SVGA (56Hz)2.03.622.20.7
SVGA (60Hz)3.22.220.01.0
SVGA (72Hz)2.41.316.01.1
SVGA (75Hz)1.63.216.20.3
SVGA (85Hz)1.12.714.20.6
Mac 16"mode1.13.914.50.6
XGA (60Hz)2.12.515.80.4
XGA (70Hz)1.81.913.70.3
XGA (75Hz)1.22.213.00.2
XGA (85Hz)1.02.210.80.5
1152×864 (75Hz)1.22.410.70.6
1280×960 (60Hz)1.02.911.90.9
1280×1024 (60Hz)1.02.311.90.4
Computer /
SignalVertical signal timimg (lines)
abcd
TEXT3424001
VGA (60Hz)23348010
Mac 13"mode3394803
VGA (72Hz)3284809
VGA (75Hz)3164801
VGA (85Hz)3254801
SVGA (56Hz)2226001
SVGA (60Hz)4236001
SVGA (72Hz)62360037
SVGA (75Hz)3216001
SVGA (85Hz)3276001
Mac 16"mode3396241
XGA (60Hz)6297683
XGA (70Hz)6297683
XGA (75Hz)3287681
XGA (85Hz)3367681
1152×864 (75Hz)3328641
1280×960 (60Hz)3369601
1280×1024 (60Hz)33810241 
						

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Connection to the Mouse Control
This function needs the optional "RMU Accessory kit". 
If you need, ask your dealer.
For how to use the kit, please read the manual of the kit.
• Before connecting, read the instruction manuals of the devices to be connected. 
• In the case of notebook type computers with an internal pointing device, the mouse control
function will not work unless the internal pointing device is disabled. In such case, disable the
internal pointing device and change the BIOS setting to select an external mouse. 
Also, some computers may not have a utility program to operate a mouse. 
Refer to the computer hardware manual for detail.
NOTE 
						

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RS-232C communication
(1) Turn off the projector and computer power supplies and connect with the RS-232C cable.
(2) Turn on the computer power supply and after the computer has started up, turn on the projector
power supply.

  
 

  	




 
 


 

Control jack
D-sub 15-pin shrink jack
	










  



	
















	
RS-232C jack 
D-sub 9-pin Projector Computer
Communications setting
19200bps,  8N1
1 Protocol
Consist of header (7 bytes) + command data (6 bytes).
2 Header
BE + EF + 03 + 06 + 00 + CRC_low + CRC_high
CRC_low : Lower byte of CRC flag for command data.
CRC_high : Upper byte of CRC flag for command data.
3 Command data
byte_0byte_1byte_2byte_3byte_4byte_5
ActionTypeSetting code
lowhighlowhighlowhigh
Command data chart
Action (byte_0 - 1)
ActionClassificationContent
1SETChange setting to desired value.
2GETRead projector internal setup value.
4INCREMENTIncrement setup value by 1.
5DECREMENTDecrement setup value by 1.
6EXECUTERun a command. 
						

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Requesting projector status (Get command)
(1) Send the request code Header + Command data (‘02H’+‘00H’+ type (2 bytes) +‘00H’+‘00H’)
from the computer to the projector.
(2) The projector returns the response code ‘1DH’+ data (2 bytes) to the computer.
Changing the projector settings (Set command)
(1) Send the setting code Header + Command data (‘01H’+‘00H’+ type (2 bytes) + setting code (2
bytes)) from the computer to the projector.
(2) The projector changes the setting based on the above setting code.
(3) The projector returns the response code ‘06H’ to the computer.
Using the projector default settings (Reset Command)
(1) The computer sends the default setting code Header + Command data (‘06H’+‘00H’+ type (2
bytes) +‘00H’+‘00H’) to the projector.
(2) The projector changes the specified setting to the default value.
(3) The projector returns the response code ‘06H’ to the computer.
Increasing the projector setting value (Increment command)
(1) The computer sends the increment code  Header + Command data (‘04H’+‘00H’+ type (2 bytes)
+‘00H’+‘00H’) to the projector.
(2) The projector in creases the setting value on the above setting code.
(3) The projector returns the response code ‘06H’ to the computer.
Decreasing the projector setting value (Decrement command)
(1) The computer sends the decrement code Header + Command data (‘05H’+‘00H’+ type (2 bytes)
+‘00H’ + ‘00H’) to the projector.
(2) The projector decreases the setting value on the above setting code.
(3) The projector returns the response code ‘06H’ to the computer.
When a command sent by the projector cannot be understood by the computer
When the command sent by the projector cannot be understood, the error command ‘15H’ is
returned by the computer. Some times, the projector ignores RS-232C commands during other
works. If the error command ‘15H’ is returned, please send the same command again.
When data sent by the projector cannot be practice
When the command sent by the projector cannot be practiced, the the error code ‘1cH’ +‘xxxxH’ is
returned.
When the data length is greater than indicated by the data length code, the projector will ignore the
excess data code.
Conversely, when the data length is shorter than indicated by the data length code, an error code
will be returned to the projector.
•Operation cannot be guaranteed when the projector receives an undefined command or
data.
• 
Provide an interval of at least 40ms between the response code and any other code.
• The projector outputs test data when the power supply is switched ON, and when the lamp is lit.
Ignore this data.
• Commands are not accepted during warm-up.
NOTE