ViewSonic Pj750 Projector User Manual

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Using The Projector
Use the control buttons on the projector control pad and the remote control to make quick 
adjustments to the controls listed in the following section.
Control Buttons
Press a control button to display a menu, then use the arrow buttons to adjust the selected control. 
The buttons on the projector control pad and on the remote control are explained below:       
Figure 6: Projector and Remote Controls
Standby/On Button 
Press the STANDBY/ON button to...

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Menu Button
Press the MENU button on the remote control or the projector control pad to display the 
OnView® menus. 
1Use the left or right arrow buttons to select a menu (Setup, Input, Image, Options).
2Use the up and down arrow buttons to highlight an item on the displayed menu.
3Use the right arrow button to select the highlighted menu item.
4Use the arrow buttons as indicated on screen to adjust the menu item.
Menu Select Button
Press the MENU SELECT button on the...

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OnView Menus
Use the OnView® menus to make precise adjustments to the options described in the section below.
To access and adjust the OnView menus:
1Press the MENU button on the remote control or the projector control pad to display the OnView® 
menus. 
2Use the left or right arrow buttons to select a menu (Setup, Input, Image, Options).
3Use the up and down arrow buttons to highlight an item on the displayed menu.
4Use the right arrow button to select the highlighted...

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Input Menu 
Image Menu 
INPUT Menu
The Input menu displays the options described below:
RGB (computer input only) displays the horizontal and vertical sync signal frequency of an RGB 
input source, such as a computer.
Video (video input only) automatically detects and selects the input signal, or you can select the 
specific input standard for your country from the list that displays. 
Auto automatically adjusts the vertical and horizontal position, phase, and size.
IMAGE...

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Options Menu 
OPTIONS Menu
The Options menu displays the options described below:
Vo l u m e increases or decreases the speaker loudness.
Menu Color selects a background color for on-screen menus (Orange, Yellow, Green, Blue, 
Purple, Gray, Black).
Timer provides a countdown clock that you can set, typically to time a presentation. Set the 
countdown Timer between 1 and 99 minutes. The time displays on the lower right portion of the 
screen when you press the Timer button...

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No Signal Menu 
NO SIGNAL Menu
To adjust projector settings before connecting input devices, use the 
No Signal menu to set the options below:
Vo l u m e increases or decreases the speaker loudness.
Keystone corrects image distortion that can occur when the angle of the projection is increased. 
K e y s t o n e   r e s i z e s   t he top or bottom of the projected image. See “ A d j u s t i n g   t h e   P r o j e c t o r   A n g l e ”   o n  
page 7.
Blank selects the...

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Other Information
Specifications  
1 May require a Macintosh adapter LCDTy p e
Pixels
ColorsThree 0.9” 1024 x 768 polysilicon, active matrix TFT LCD
786,432 (1024 x 768 V)
16.7 million
LensTy p e
Focal length
Keystone correctionManual zoom (1.2x), manual focus
F=1.7~ 2.0 (f = 37.5 - 45.1 mm)
Fixed 10:0 upward shift, normal at 10.5° ~ 8.8° projection 
angle
DisplayImage size
Focus distance
Aspect ratio
Orientation76.2 to 762 cm (31” to 300” inches)
0.7 to 9.0 m (2.3 to...

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Timing Chart
The following table lists the maximum refresh rates for standard resolutions (timing presets). Not all 
video cards can operate at these rates. See your graphics card user guide to ensure compatibility.   
Table 2: Computer Signal Rates and Resolution
Resolution fH (kHz) fV (Hz) Rating Signal mode
720 x 400 37.9 85.0 VESA TEXT
640 x 480 31.5 59.9 VESA VGA-3
640 x 480 35.0 66.7 Mac 13” mode
640 x 480 37.9 72.8 VESA VGA-3 (72Hz)
640 x 480 37.5 75.0 VESA VGA-3...

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Troubleshooting
No power
 Make sure power button (or switch) is ON. 
 Make sure A/C power cord is securely connected to a power outlet.
 Plug another electrical device (like a radio) into the power outlet to verify that the outlet is 
supplying proper voltage.
Power is on but the projector displays only the logo
 Make sure the input source is connected.
Projector image is too dark or too light
 Adjust the Contrast and Brightness settings.
 Press Reset from the...

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Projector does not respond to the remote control (or responds poorly)
 Make sure you are within 10 feet from the projector.
 Point the remote at the screen or at the front of the projector.
 Make sure the infrared sensors (on the front and on the back) of the projector are not blocked.
 Darken the room. The lighting may be affecting the remote control.
 Replace the battery.
No sound
 Adjust the Volume and make sure the Mute button is toggled to OFF.
 Verify that...