Optoma Ep728i Projector User Manual
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3English 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 finalize the selection. Setup | Language
32English User Controls Setup Projection Front-Desktop The factory default setting. Rear-Desktop When you select this function, the projector reverses the image 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-Ceiling When you select this function, the projector reverses and turns the image upside down at same time. You can project from behind a translucent screen with ceiling mounted projection. Projector ID Allows RS232 control of an individual projector. Range 01-99. Information Hide On: Choose “On” to hide the searching message. Off: Choose “Off” to show the searching message.
33English 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.
34English User Controls Setup | Security Security On: Choose “On” to use security verification when the turning on the projector. Off: Choose “Off” to be able to switch on the projector without password verification. Security Timer Can be select the time (Month/Day/Hour) function to set the number of hours the projector can be used. Once this time has elapsed you will be requested to enter your password again.
35English User Controls Setup | Security ■ First Time: 1. The Password is 4 digits, DEFAULT VALUE is “1234”. ( first time) 2. Use number buttons on the remote to select your password, and then press “” key to confirm your selection. Change Password 1. Press “” to input old password. 2. Use number button to enter current password, and then press “” key again to reveal next OSD menu. 3. Scroll down to highlight Password, and then press “ ” to activate. 4. Enter new password (4 digits in length) using the number buttons on the remote, then press “” to confirm. 5. Enter new password again and press “ ” to confirm.
36English User Controls Setup | Signal Phase “Phase” synchronizes the signal timing of the display with the graphic card. If you experience an unstable or flickering 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 vertical flickering bar, use this function to make an adjustment. H. Position Press the to move the image left. Press the to move the image right. V. Position Press the to move the image down. Press the to move the image up.
37English User Controls Menu Location Choose the menu location on the display screen. Source Lock On: The projector will search specified 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 continuously to allow for proper high altitude cooling of the projector. Keypad Lock When the keypad lock function is on, the control panel will be locked, but the projector can still be operated by the remote control. If canceling this function, use the remote control or press the “Enter” key on the control panel for 7 seconds to turn it off. Background Color Use this feature to display a “Blue” or “Black” screen when no signal is available. Mute Choose the “On” to turn mute on. Choose the “Off” to turn mute off. Options
38English 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.
39English 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 timer will start, when there is no signal being sent to the projector. Then projector will automatically power off when the countdown has finished (in minutes). Sleep Timer (min) Sets the countdown timer interval. The timer will begin, with or without a signal input. Then the projector will automatically power off then the sleep timer countdown has finished. Options
40English 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 which will lower power consumption and extend the lamp life by up to 130%. BRIGHT: Choose “BRIGHT” to increase the brightness. Lamp Reset Reset the lamp life hour after replacing the lamp.