Gateway M255e Manual

2-8Installation and Connection
2-8 Supported Display Modes
2-8-1. PC Timing (D-Sub/HDMI) 
FORMATRESOLUTION
HORIZONTAL 
FREQUENCY
(KHZ)VERTICAL 
FREQUENCY  (HZ)PIXEL 
FREQUENCY  (MHZ)
IBM 640 x 350 70Hz31.469 70.08625.175
IBM 640 x 480 60Hz31.469 59.94025.175
IBM 720 x 400 70Hz31.469 70.08728.322
VESA 640 x 480 60Hz31.469 59.940 25.175
MAC 640 x 480 67Hz35.000 66.66730.240
VESA 640 x 480 70Hz35.000 70.000 28.560
VESA 640 x 480 72Hz37.861 72.809 31.500
VESA 640 x 480 75Hz37.500 75.000 31.500
VESA 720 x 576...

Installation and Connection2-8
 All resolutions higher or lower than 1024x768 are converted to 1024x768 by the Scaler chip inside the projector. If the 
resolution of the signal output by the PC  matches the real resolution (1024x768)  of the projector, the screen quality is 
optimal. 
 
2-8-2. AV Timing (D-Sub)
2-8-3. AV Timing (HDMI)
VESA 1280 x 960 72Hz72.072 72.000124.540
VESA 1280 x 960 75Hz75.231 74.857130.000
VESA 1280 x 1024 60Hz63.981 60.020 108.000
VESA 1280 x 1024 70Hz74.620 70.000 128.943...

2-8Installation and Connection
2-8-4. AV Timing (VIDEO)
NTSC, NTSC 4.43, PAL, PAL60, PAL-N, PAL-M, SECAM
Your projector supports the standard video formats list ed above through its video inputs. No adjustments are 
necessary.
EIA-861Format5 1920 x 1080 Interlaced 60.000 33.75074.250
EIA-861Format17,18 720 x 576 Progressive 50.000 31.25027.000
EIA-861Format19 1280 x 720 Progressive 50.000 37.50074.250
EIA-861Format20 1920 x 1080 Interlaced 50.000 28.12574.250
FORMATRESOLUTIONSCAN
HORIZONTAL 
FREQUENCY...

Installation and Connection2-9
2-9 Connecting the Power
1.Plug the power cord into the power terminal on the rear side of the projector. 

2-10Installation and Connection
2-10 Connecting with a PC and Setting up the PC
2-10-1. Setting up the PC Environment 
Check the following items before connecting your PC to your projector. 
1.Click the right mouse button on the Windows desktop, and then click [Properties]. 
The  dialog appears.
2. Click the [Settings] tab, and then set the . T he optimal resolution for the projector is 1024 x 768. For other 
resolutions supported by the projector, see t he PC Timing Display Mode table in section 2-8....

Installation and Connection2-10
5.Click the [OK] button to close the window,  and then click the [OK] button on the  window to close that 
window.
6. Shut down the PC and connect it to the projector.
 The setup process might vary depending on your  type of computer or version of Windows. 
(For example, [Properties] appears instead  of [Properties (R)] as shown in 1.)
This projector supports 32 bit color quality (per pixel) when it is used as a PC monitor.
Projected images may differ from the images on...

2-11Installation and Connection
2-11 Connecting a PC using an HDMI/DVI cable
Make sure that your PC and projector are turned off.
1.Connect the [HDMI/DVI IN] terminal of the projector to the HDMI or DVI terminal of your PC using a HDMI/HDMI or HDMI/DVI 
cable (Not supplied).
- If you are connecting to the HDMI terminal of  your PC, use an HDMI/HDMI cable (Not supplied).
- For the supported resolutions and refresh rates, see PC Timi ng (D-Sub/HDMI) in Section 2-8, Supported Display Modes.  

Installation and Connection2-12
2-12 Connecting an HDMI-Compatible Device
Make sure that the AV device and your projector are turned off.
1.Connect the [HDMI/DVI IN] terminal at the back of the projector to  the HDMI or HDMI/DVI output terminal of the digital output 
device using an HDMI/DVI or HDMI/HDMI cable.
- If you are connecting to the HDMI output terminal  on the digital output device, use an HDMI/HDMI cable.
- For supported input signal formats, resolutions, and frequenc ies, see AV Timing(HDMI)...

2-13Installation and Connection
2-13 Connecting an AV device using a D-Sub cable
Make sure that the AV device and your projector are turned off.
1.Connect the [PC IN] terminal at the back of the projector to  the D-Sub terminal of your AV device using a D-Sub cable.
- For supported input signal formats, resolutions, and frequencies, see AV Timing (D-Sub) in Se ction 2-8, Supported Display 
Modes. 
2. Connect the [ AUDIO IN (L-AUDIO-R) ] terminal at the back of the projector to the  Audio out terminal of...

Installation and Connection2-14
2-14 Connecting an AV device with Component output
Make sure that the AV device and your projector are turned off.
1.Connect the [PC IN] terminal on the back of the projector to  the Component terminal on your AV device using a D-Sub to 
Component cable (Not supplied). This cable has a D-Sub connector on one end and three RCA jacks on the other.
- For supported input signal formats, resolutions, and frequencies, see AV Timing (D-Sub) in Se ction 2-8, Supported Display...