Instruction/ maintenance manual of the product EP728 Optoma Technology
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1 English T able of Contents ................................................................................... 1 Usage Notice .......................................................................................... 2 Safety Information ...........
2 English Usage Notice Safety Informations The lightning ash with arrow head within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufcient magni - tude to constitute a risk of electric shock to persons.
3 English Usage Notice When the lamp reaches the end of its life, the projector will not turn back on until the lamp module has been replaced. To replace the lamp, follow the procedures listed under “Replacing the Lamp” section on pages 47-48.
4 English Usage Notice Do: Turn off the product before cleaning. Use a soft cloth moistened with a mild detergent to clean the display housing. Disconnect the power plug from the AC outlet if the product is not being used for a long period of time.
5 English Usage Notice Eye Safety Warnings ▀ ■ Avoid staring directly into the projector’s beam of light at all times. ▀ ■ Minimize standing facing into the beam. Keep your back to the beam as much as possible. ▀ ■ Using a stick or laser pointer is recommended to avoid the need for the presenter to enter the beam.
6 English Introduction Product Features This product is a single chip 0.55” DLP ® projector. Outstanding features include: Texas Instruments Single chip DLP ® Technology Computer Compatibility: Apple Macintosh, iMac, and VESA Standards: UXGA, SXGA+, SXGA, WXGA, XGA, SVGA, VGA Video Compatibility: ■ NTSC, NTSC4.
7 English Introduction Power Cord 1.8m IR Remote Control Package Overview This projector comes with all the items shown below. Check to make sure your unit is complete.
8 English Introduction 1. Control Panel 2. Zoom 3. Focus 4. Zoom Lens 5. Elevator Button Main Unit Product Overview 6. Elevator foot 7. IR Receivers 8.
9 English Introduction Control Panel 1. Enter 2. Menu 3. Power 4. AV Mute 5. Source 6. Re-Sync 7. Four Directional Select Keys 8. Temp LED 9 Lamp LED 10.
10 English Introduction Connection Ports 1. USB Connector (Connect to PC for Remote Mouse function) 2. RS-232 Connector 3. Audio Input Connector 4. S-Video Input Connector 5. DVI-I Input Connector (PC Digital (HDCP)/PC Analog/Component Video Input) 6.
1 1 English Introduction Remote Control 1. Button LED 2. Power On/Off 3. Laser Button 4. Page Up 5. Mouse Right Click 6. Four Directional Select Keys 7. Re-Sync 8. Page Down 9. Volume +/- 10. Zoom 11. AV mute 12. Video Source 13. VGA Source 14. Freeze 15.
12 English Installation Connecting the Projector Due to the difference in applications for each country, some regions may have different accessories. Connect to Computer/Notebook 1................................................................
13 English Installation Connect to Video Sources S-Video Output DVD Player, Set-top Box, HDTV receiver 1............................................................................................................... Power Cord 2.......................
14 English Installation Powering On the Projector 1. Remove th e lens cap. 2. Ensure that the power cord and signal cable are securely connected. The Power LED will be Amber. 3. Turn on the lamp by pressing “Power” button either on the top of the projector or on the remote.
15 English Installation Warning Indicator When the “LAMP” indicator lights red, the projector will automatically shut itself down. Please contact your local reseller or service center. See pages 54-55. When the “TEMP” indicator lights red, it indicates the pro - jector has overheated.
16 English Installation Adjusting the Projected Image Adjusting the Projector’s Height The projector is equipped with elevator foot for adjusting the image height. To raise the image: 1. Press the elevator button . 2. Raise the image to the desired height angle , then release the button to lock the elevator foot into position.
17 English Installation Focus Ring Zoom Ring Adjusting the Projector’s Zoom / Focus Adjusting Projection Image Size You may turn the zoom lever to zoom in or out. To focus the image, rotate the f ocus ring until the image is clear. The projecto r will focus at distances from 3.
18 English User Controls Control Panel Control Panel & Remote Control There are two ways for you to control the functions: Control Panel and Remote Control. Using the Control Panel Power Refer to the “Power On/Off the Projector” section on pages 14-15.
19 English User Controls Using the Remote Control Power Refer to the “Power On/Off the Projector” section on pages 14-15. Laser Aim the remote at the viewing screen, press and hold this button to activate the laser pointer. PC/Mouse control The PC/Mouse control can be used to con - trol mouse movement.
20 English User Controls Using the Remote Control Menu Press “Menu” to launch the on-screen display (OSD) menu. To exit OSD, Press “Menu” again. Zoom Press “+/-” button to zoom in of an image. DVI Press “DVI” to choose DVI source. VGA Press “VGA” to choose source from VGA- IN connector.
21 English User Controls The Projector has multilingual On-screen Display menus that allow you to make image adjustments and change a variety of settings. The projector will automatically detect the source. How to operate 1. To open the OSD menu, press “Menu” on the Remote Control or Projector Keypad.
22 English User Controls Menu Tree.
23 English User Controls Image Display Mode There are many factory presets optimized for various types of images. Presentation: Good colour and brightness from PC input. Bright: Maximum brightness from PC input. Movie: For home theater . sRGB: Standardised accurate colour.
24 English User Controls Image Saturation Adjusts a video image from black and white to fully saturated colour. Press the to decrease the amount of saturation in the image. Press the to increase the amount of saturation in the image. Tint Adjusts the color balance of red and green.
25 English User Controls Image | Color Color Select the Red/Green/Blue Gain for brightness adjustments and Bias for contrast adjustments for the whole picture. Individual color adjustments for Cyan, Magenta, Yellow can also be adjusted. Reset Choose “Yes” to return the factory default settings for color adjustments.
26 English User Controls Image | Advanced Degamma This allows you to choose a degamma table that has been ne-tuned to bring out the best image quality for the input. Film: for home theater. Video: for video or TV source. Graphics: for image source.
27 English User Controls Image | Advanced Input Source Enable input sources. Press “ ” into the next menu as below and then use or to select. Press “Enter” to nalize the selection.
28 English User Controls Display Format Use this function to choose your desired aspect ratio. 4:3: This format is for 4x3 input sources not enhanced for Wide screen TV. 16:9 I: This format is for 16x9 input sources, like HDTV and DVD enhanced for Wide screen TV.
29 English User Controls window format 16 : 9-I format or or 16 : 9-II format 4 : 3 format Input Signal Display area Picture area Display on Screen.
30 English User Controls Overscan Overscan function removes the noise in a video image. Overscan the ima ge to remo ve vide o enco ding no ise on the ed ge of vid eo source. Zoom Press the to reduce the size of an image. Press the to magnify an image on the projection screen.
31 English User Controls Language Choose the multilingual OSD menu. Press or into the sub menu and then use the or key to select your preferred language.
32 English User Controls Setup Projection Front-Desktop The factory default setting. Rear-Desktop When you select this function, the projector reverses the im age so you can project behind a translucent screen. Front-Ceiling When you select this function, the projector turns the image upside down for ceiling-mounted projection.
33 English User Controls Setup Start Up Logo Use this function to select your desired start-up screen. On: Choose “On” to show the Optoma logo.
34 English User Controls Setup | Security Security On: Choose “On” to use security verication when the turning on the projector. Off: Choose “Off” to be able to switch on the projector without password verication.
35 English User Controls Setup | Security ■ First Time: 1. T h ePasswo rdis4di g its,DEF AULTV A LU Eis“12 3 4” .( rsttime) 2. U senumberbuttonso nthere motetos electyourpass word,andth e n press “ ”ke ytoc on r myourselect ion .
36 English User Controls Setup | Signal Phase “Phase” synchronizes the signal timing of the display with the graphic card. If you experience an unstable or ickering image, use this function to correct it. Frequency “Frequency” changes the display data frequency to match the frequency of your computer’s graphic card.
37 English User Controls Menu Location Choose the menu location on the display screen. Source Lock On: The projector will search specied connection port. Off: The projector will search for other signals if the current input signal is lost. High Altitude Choose “On” to turn on High Altitude mode.
38 English User Controls Options Volume Press the to decrease the volume. Press the to increase the volume. Reset Choose “Yes” to return the display parameters on all menus to the factory default settings.
39 English User Controls Direct Power On Choose “On” to turn on Direct Power On mode. The projector will automatically power on when AC power is supplied, with - out pressing the “Power/Standby” key on the projector control panel or “Power” key on the remote control.
40 English User Controls Options | Lamp Settings Lamp Hours Displays the projection time. Lamp Reminder Choose this function to show or to hide the warning message when the changing lamp message is displayed. The message will appear 30 hours before suggested replacement of lamp.
41 English Appendices Image Problems No image appears on-screen Ensure all the cables and power connections are correctly and securely connected as described in the “Installation” section. Ensure all the pins of connectors are not bent or broken.
42 English Appendices 6. Select the “Change” button under the “Monitor” tab. 7. Click on “Show all devices”. Next, select “Standard monitor types” under the SP box; choose the resolution mode you need under the “Models” box.
43 English Appendices Image is out of focus Make sure the lens cap is removed. Adjusts the Focus Ring on the projector lens. Make sure the projection screen is between the required distance 3.9 to 39.4 feet (1.2 to 12.0 meters) from the projector.
44 English Appendices Intermission Problems The projector stops responding to all controls If possible, turn off the projector, then unplug the power cord and wait at least 60 seconds before reconnecting power. Lamp burns out or makes a popping sound When the lamp reaches its end of life, it will burn out and may make a loud popping sound.
45 English Appendices Message Reminders Fan failed: Temperature warning: Replacing the lamp: Out of range: (refer to page 49).
46 English Appendices Remote Control Problems If the remote control does not work Check the operating angle for the remote control is approximately ±22.5°. Make sure there are no obstructions between the remote control and the projector. Move to within 6 m (20 ft) of the projector.
47 English Appendices Replacing the lamp The projector automatically detects the lamp life. When the lamp life is nearing the end of use, you will receive a warning message. When you see this message, please contact your local reseller or service center to change the lamp as soon as possible.
48 English Appendices Lamp Replacement Procedure: 1. Switch off the power to the projector by pressing the “Power” button. 2. Allow the projector to cool down for at least 30 minutes. 3. Disconnect the power cord. 4. Use a screwdriver to unscrew the 2 screws from the cover.
49 English Appendices Compatibility Modes Mode Resolution V-Sync (Hz) Analog Digital VGA 640 x 480 60, 72, 75, 85 60, 72, 75, 85 VGA 720 x 400 70, 85 70, 85 SVGA 800 x 600 56, 60, 72, 75, 85 56, 60, 7.
50 English Appendices RS232 Commands Pin no. Name I/O (From Projec - tor Side 1 TXD OUT 2 RXD IN 3 GND __ Pin no. Spec. 1 N/A 2 RXD 3 TXD 4 DRT 5 GND 6 DSR 7 RTS 8 CTS 9 N/A 1 2 3 4 5 6 7 8 9 1 2 3 RS.
51 English Appendices RS232 Protocol Function List RS232 Commands Baud Rate: 9600 Data Bits: 8 Parity: None Stop Bits: 1 Flow Control: None UART16550 FIFO: Disable Projector Return (Pass): P Projector.
52 English Appendices ----------------------------------- -------------------------- --------------------------- -------------------------------- -------------------------- ---------------------------.
53 English Appendices Please note that damage result - ing from incorrect installation will invalidate the warranty. Ceiling Mount Installation 1. To prevent damaging your projector, please use the Optoma’s recommended mount package for installation.
54 English Appendices Optoma Global Ofces Forserviceorsupportpleasecontactyourlocalofce. USA 715 Sycamore Drive Tel : 408-383-3700 Milpitas, CA 95035, USA Fax : 408-383-3702 www.optomausa.com Service : services@optoma.com Canada 5630 Kennedy Road, Mississauga, ON, L4Z 2A9, Canada Tel : 905-361-2582 www.
55 English Appendices Korean WOOMI TECH.CO.,LTD. 4F,Minu Bldg.33-14, Kangnam-Ku, Tel : +82+2+34430004 seoul,135-815, KOREA Fax : +82+2+34430005 Japanese 東京都足立区綾瀬3-25-18 オーエス本社ビル E-mail : info@osscreen.com サポートセンター: 0120-46-5040 www.
56 English Appendices Regulation & Safety notices Thisappendixliststhegeneralnoticesofyourprojector. FCC notice This device has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC rules.
57 English Appendices Operation conditions This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference, and 2 . This device must accept any interference received, including interference that may cause undesired operation.
An important point after buying a device Optoma Technology EP728 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Optoma Technology EP728 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Optoma Technology EP728 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Optoma Technology EP728 you will learn all the available features of the product, as well as information on its operation. The information that you get Optoma Technology EP728 will certainly help you make a decision on the purchase.
If you already are a holder of Optoma Technology EP728, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Optoma Technology EP728.
However, one of the most important roles played by the user manual is to help in solving problems with Optoma Technology EP728. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Optoma Technology EP728 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
