Optoma EP728 Support Question
Optoma EP728 Support Question
Find answers below for this question about Optoma EP728.Need a Optoma EP728 manual? We have 7 online manuals for this item!
Question posted by joshflorence4christ on January 21st, 2012
What If There Is A Loud Whirring/buzzing Sound Coming From The Projector?
We have a 10 month old projector that has not been dropped or apparently damaged, but has traveled much in the trunk of our car. When turned on and hooked up, it makes a loud buzzing or whirring sound over the sound of the video/audio. The picture is fine. When we shake it gently, there's a small rattle like there's a part broken inside or a screw out of place. How do we get inside it to find the piece? How do we fix this?
Current Answers
Related Optoma EP728 Manual Pages
User's Manual - Page 1
... (See enclosed TOGGLER® Anchoring Solutions brochure.)
X Before installing the ceiling mount, make sure the mounting location is 20 pounds (9.1 kg). X Recommend maximum extension; X Always...
• Two crescent or 3/4" open-end wrenches.
• Drill with heavy projectors.
DO NOT TAKE UNNECESSARY RISKS! INSTALLATION INSTRUCTIONS
Model: CM-E73X
Compatible Models: Optoma...
User's Manual - Page 2
..." brochure (not shown) 1
9 24" safety cable
1
10 6" Extension Shaft (not shown)
1
11 9" Extension Shaft (not shown)
1
12 1/4" Star Washers
4
13 Hex Wrench
1
T.M.
715 Sycamore Drive Milpitas, CA 95035 Refer to damage the projector. 2. Drill the appropriate sized hole at each joint.
2. Y INSTALLING THE PROJECTOR MOUNT 1. Raise the projector and mount assembly into place using the...
User's Manual - Page 1
...10 Remote Control...11
Installation 12 Connecting the Projector 12
Connect to Computer/Notebook 12 Connect to Video Sources 13
Powering On/Off the Projector 14 Powering On the Projector 14 Powering Off the projector......37
Appendices 41 Troubleshooting 41
Image Problems 41 Intermission Problems 44 Projector Status Indication 44 Remote Control Problems 46 Replacing the Lamp 47 ...
User's Manual - Page 2
...10. To ensure reliable operation of the Canadian Interference-Causing Equipment Regulations. Do not use attachments/accessories specified by anyone except properly qualified service personnel. Servicing is required when the projector has been damaged...4. Follow all requirements of the projector and to rain or moisture, does not operate
normally, or has been dropped. To reduce the risk of...
User's Manual - Page 3
... will detect the life of its life, the projector will not turn back on the remote control and do not point the laser beam into the projector's lens when the lamp is approaching to the end...Use the "Lamp Reset" function from the on the screen. This remote control is in this may damage your local reseller or service center to change the lamp as soon as this user's guide.
▀...
User's Manual - Page 5
...when they do not also have to the audience; The best way to achieve this ensures that projectors are asked to point out something on the screen.
▀■ In order to minimize ...ambient light levels.
English this is by ceiling-mounting the projector rather than placing it on floor or table top.
▀■ When projector is recommended to avoid the need for the presenter to enter ...
User's Manual - Page 6
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, ...
User's Manual - Page 7
... :
User's Manual Warranty Card Quick Start Card WEEE Card
7 English
Projector with all the items shown below.
Introduction
Package Overview
This projector comes with lens cap
Power Cord 1.8m
VGA Cable 1.8m
Due to make sure your dealer immediately if anything is complete. Y-type Cable 100mm
(Available in EMEA...
User's Manual - Page 12
Installation
Connecting the Projector
Connect to Computer/Notebook
Due to the
difference in applications for
1
each country,
some regions may
have different
accessories.
6
2
3 45
1...Power Cord 2...VGA Cable 3 DVI-I to VGA Cable (Optional accessories) 4 Audio Input Cable (Optional accessories) 5 RS232 Cable (Optional accessories) 6...USB Cable
English 12
User's Manual - Page 14
... same time, press the "Source" button on the control panel or direct source key on the projector first and then select the signal sources.
Turn on the remote. Remove the lens cap. 2. The projector will display in approximately 10 seconds.
Turn on the lamp by pressing "Power" button either on the
top of the...
User's Manual - Page 15
... in standby mode, simply press "Power" button to operate for about 10 seconds for cooling cycle. See pages 54-55.
When the "TEMP" indicator flashes red, it indicates the projector has overheated. Press the "Power" button again to turn off the projector lamp, you should contact your local dealer or our service center...
User's Manual - Page 16
...-tune the display angle.
3 Tilt-Adjustment Foot
2 Elevator Foot
1 Elevator Button
English 16
To lower the image: 1. Installation
Adjusting the Projected Image
Adjusting the Projector's Height
The projector is equipped with elevator foot for adjusting the image height. Use screw in foot to lock the
elevator feet into position.
3. Press the...
User's Manual - Page 17
....9" (40.4cm) 20.44" (51.9cm) 27.26" (69.2cm) Hd
Min. 2.48" (6.3cm) 6.19" (15.7cm) 10.32" (26.2cm) 14.45" (36.7cm) 18.58" (47.2cm) 24.78" (62.9cm)
Distance
3.9' (1.2m) 9.8' ...(7.0m) 29.5' (9.0m) 39.4' (12.0m)
This graph is clear. Installation
Adjusting the Projector's Zoom / Focus
You may turn the zoom lever to 12.0 meters). To focus the image, rotate the focus ring until the image is...
User's Manual - Page 18
... select items or make adjustments
Select Keys
to control the functions: Control Panel and Remote Control. Control Panel
English
Using the Control Panel
Power
Refer to launch the on-screen display (OSD) menu. Power LED Indicate the projector's status. Temp LED
Indicate the projector's temperature status.
18 AV Mute
Momentarily turns off/on pages...
User's Manual - Page 44
... out and may
make a loud popping sound. To replace the lamp, follow the procedures in the "Replacing the Lamp" section on , 0.25s off the projector, then unplug the power cord and
wait at least 60 seconds before reconnecting power.
Appendices
Intermission Problems
The projector stops responding to all controls If possible, turn on until the...
User's Manual - Page 52
...37 37 20 n
Security
Security Timer
Month/Day/Hour
nnnnnn
~XX78 1
7E...10...Projector Return Description
~XX150 1
7E 30 30 31 35 30 20 31
Information
OKabbbbcdddde a: 1/0=On/Off
bbbb: LampHour
c: source 0/1/2/3/4/5/6= None/DVI-D/VGA1/
VGA2/SCART/S-Video/Video
dddd: FW version
e: Ddisplay mode
~XX151 1
7E 30 30 31 35 31 20 31
Model name
OKn
n: 0/1/2/3 EP721 / EP723 / EP727 / EP728...
Protocol Function - Page 2
... 20 n
Security
Security Timer
Month/Day/Hour
nnnnnn
~XX78 1...XX140 10
7E...Projector Return Description
~XX150 1
7E 30 30 31 35 30 20 31
Information
OKabbbbcdddde a: 1/0=On/Off
bbbb: LampHour
c: source 0/1/2/3/4/5/6= None/DVI-D/VGA1/
VGA2/SCART/S-Video/Video
dddd: FW version
e: Ddisplay mode
~XX151 1
7E 30 30 31 35 31 20 31
Model name
OKn
n: 0/1/2/3 EP721 / EP723 / EP727 / EP728...
Datasheet - Page 1
... technologies from Texas Instruments. Weighing only 4.4 pounds, the portable and attractive EP728 is a lightweight digital projector that features a brightness of connectivity options including: DVI-I w/HDCP,
VGA-In...Vertical Refresh Rate 56 to 85 Hz
Uniformity 85%
Weight 4.4 lbs (2 kg)
Dimensions (W x H x D) 10.2" x 2.9" x 7.4" (259 x 73 x 188 mm)
Noise Level 32db/30dB (STD/ECO)
Power Supply ...
Brochure - Page 1
...
O Presentation-friendly remote control with the latest color processing technologies from Texas Instruments
www.OptomaUSA.com Weighing only 4.4 pounds, the portable and attractive EP728 is a lightweight digital projector that Delivers
VGA-Out
DVI
Audio-In
USB
Power/Standby
Enter Left Mouse Button
Page Up/Down Source
Keystone Correction Brightness DVI S-Video Menu...
Brochure - Page 2
EP728 | Multimedia Projector
Projection Distance/Image Size
Projection Distance (Feet)
Maximum Diagonal (Inches)
Minimum Diagonal (Inches)
6
42.6
41.9
8
61.5
55.8
10
76.9
69.8
12
92.3
83.7
14
108
97.7
16
123
112
18
138
126
Control Panel
Power LED AV Mute
Lamp LED Temp LED
Directional ...
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