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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Optoma EP728, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Optoma EP728 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Optoma EP728. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Optoma EP728 should contain:
- informations concerning technical data of Optoma EP728
- name of the manufacturer and a year of construction of the Optoma EP728 item
- rules of operation, control and maintenance of the Optoma EP728 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Optoma EP728 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Optoma EP728, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Optoma service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Optoma EP728.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Optoma EP728 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
1 English T able of Contents ................................................................................... 1 Usage Notice .......................................................................................... 2 Safety Information ......................................................................................... 2 Precautions.......[...]
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Page 2
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. The exclamation point within a[...]
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Page 3
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. Precautions Please follow all warnings, precautions and maintenance as recommended in this user[...]
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Page 4
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. Don’t: Do not block the ventilation slots and openi[...]
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Page 5
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. ▀ ■ Ensure that [...]
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Page 6
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, NTSC4.43 ■ PAL/P[...]
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Page 7
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. Contact your dealer immediately if anything is missing. Documentation : User’s Manual Warranty Card Quick Start Card WEEE Card Due to the differ[...]
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Page 8
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. Connection Ports 9. Power Socket 10. Tilt-Adjustment Foot 8 9 10 7 6 5 1 2 3 4 7[...]
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Page 9
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. Power LED 2 7 4 3 10 9 5 6 1 8[...]
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Page 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. VGA In/SCART Connector (PC Analog Signal/Component Video Input, HDTV/SCART Input) 7. VGA Output Co[...]
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Page 11
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. S-Video Source 16. DVI Source 17. Brightness 18. Menu 19. Keystone +/- 20. Source 21. Enter 22[...]
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Page 12
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............................................................................................................... Power Cord 2.......................................[...]
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Page 13
13 English Installation Connect to Video Sources S-Video Output DVD Player, Set-top Box, HDTV receiver 1............................................................................................................... Power Cord 2...................................... SCART RGB/S-Video Adaptor (Optional accessories) 3 ................................[...]
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Page 14
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. The Power LED will ash green. The startup screen will displa[...]
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Page 15
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. The projector will automatically shut itself dow[...]
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Page 16
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. 3. Use scre[...]
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Page 17
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 focus ring until the image is clear. The projector will focus at distances from 3.9 to 39.4 feet (1.2 to 12.0 meters). 68.8" (174.8cm) 1 14.7" ([...]
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Page 18
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. Menu Press “Menu” to launch the on-screen display (OSD) menu. To exit OSD, Press “M[...]
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Page 19
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. The mouse function is enabled using the US[...]
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Page 20
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. AV Mute Momentarily turns off/on the audio[...]
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Page 21
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. 2 When OSD is displayed, use keys to select[...]
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Page 22
22 English User Controls Menu Tree[...]
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Page 23
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. User: User’s own settings. Brightness Adjust the brigh[...]
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Page 24
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. Press the to increase the amount of green in the image.[...]
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Page 25
25 English User Controls Image | Color Color Sele ct the Red /Gre en/B lue Gai n for bri ghtn ess adj ustm ents an d Bi a s f o r co n t r a s t ad j u s t m e nt s f o r t h e wh o l e p ic t u r e . I nd i v i d u a l color adjustments for Cyan, Magenta, Yellow can also be adjusted. Reset Choose “Yes” to return the factory default settings fo[...]
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Page 26
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. PC: for PC or computer source. BrilliantColor TM This adjustable item utilizes a n[...]
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Page 27
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. The projector will not search inputs that are de-selected.[...]
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Page 28
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. 16:9 II: The non-standard wide-screen display format of the projector. Par[...]
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Page 29
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[...]
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Page 30
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. H Image Shift Shifts the projected image position horizontally. V[...]
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Page 31
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. Press “Enter” to nalize the selection. Setup | Language[...]
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Page 32
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. Rear[...]
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Page 33
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. Off: Choose “Off” to show a blank image.[...]
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Page 34
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. Security Timer Can be select the time (Month/Day/Hour) function to set the number of hours the projector can be us[...]
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Page 35
35 English User Controls Setup | Security ■ First Time: 1. T h ePasswo rdis4di g its,DEF AULTV A LUEi s“12 3 4” .( rsttime) 2. U senumberbuttonso nthere motetos electyourpass word,andth e n press “ ”ke ytoc on r myourselect ion . Change Password [...]
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Page 36
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. If you experience a[...]
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Page 37
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. Operates the fans at full speed contin[...]
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Page 38
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.[...]
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Page 39
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. Auto Power Off (min) Sets the countdown timer interval. The countdown [...]
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Page 40
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. Brightness Mode STD: Choose “STD” to dim the projector lamp wh[...]
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Page 41
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. Check if the projection lamp has been securely installed. Please refer to the “Replac[...]
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Page 42
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. 8. Verify that the resolution setting of the monitor display is lower than or equal to UXGA (1600 x 1200)[...]
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Page 43
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. See page 17. The image is stretched when displaying 16:9 DVD title When you play anamorphi[...]
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Page 44
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. [...]
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Page 45
45 English Appendices Message Reminders Fan failed: Temperature warning: Replacing the lamp: Out of range: (refer to page 49)[...]
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Page 46
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. Make sure the batteries are inserted correctly. R[...]
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Page 47
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. Make sure the projector has been cooled down for at l ea[...]
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Page 48
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. 5. Push up and remove the cover. 6. Use a screwdriver to unscre[...]
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Page 49
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, 72, 75, 85 SVGA 832 x 624 72 72 XGA 1024 x 768 60, 70, 75, 85 60, 70, 75, 85 XGA 1152 x 864 60, 70, 75, 85 60, 70, 75, 85 WXGA 1280 x 720 50, 60 *** WX[...]
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Page 50
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 RS232 Connector VGA-In Connector[...]
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Page 51
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 Return (Fail): F XX=01-99, projector's ID, XX=00 is for all projectors SEND to projector -------------------------------------------------------[...]
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Page 52
52 English Appendices ------------------------------------------------------------- ----------------------------------------------------------- -------------------------------------------------------------- --- 232 ASCII Code HEX Code Function Description ------------------------------------------------------------- --------------------------------[...]
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Page 53
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. 2. If you wish to use a third party ceiling mount kit, please ensure the screws used to at[...]
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Page 54
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.optoma.ca Fax : [...]
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Page 55
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.os-worldwide.com Taiwan 5F., No. 108, Minchiuan Rd. Tel : +886-[...]
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Page 56
56 English Appendices Regulation & Safety notices Thisappendixliststhegeneralnoticesofyourprojector. FCC notice T h i s de v i c e h a s b e e n t e s t e d an d f o u n d t o c o m p l y wi t h t h e li mi ts for a Cla ss B d i gi ta l dev ic e pur su a nt to Part 15 of th e FC C ru le s . Th es e li mi t s ar e de s[...]
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Page 57
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. T h i s d e v i c e m u s t a c c e p t a n y i n t e r f e r e n c e r e c e i v e d , i n c l u d i n g i n t e r f e r e n c e t h a t m a y[...]