Optoma Optoma EP7155 Instruction manual

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
1 2007/10/15
DATA PROJECTOR
EP7155 (DP-3510) & EP1691 (DP-7610)
SERVICE MANUAL (ver.02)

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
2 2007/10/15
DLP DIGITAL PROJECTOR
Model Name : EP7155 & EP1691
Revision Description Date
ver.00 Preliminary 08/30/2007
ver.01 Revise the spare part list (pg80) 09/28/2007
ver.02 2-1. Summary Specifications
Projection screen size:EP1691 => 39” to 295” (overdrive 300”)
EP7155 => 34” to 260” (overdrive 300”)
Projection lens => Zoom Lens / Manual focus / Manual zoom
Vertical keystone correction => +/- 15 degrees ; +/- 30 vertical stepping in OSD
Projection methods => Front / Rear-Desktop & Front / Rear-Ceiling
H-Sync => 15, 30 – 91.4 KHz
Operation temperature => 5° ~ 40°C
2-4. Lamp, Reflector Type => FEX92
Lamp output power =>200W+/-5%(Normal);160W+/-5%(ECO)
2-8. Key Pad – item 3 Power LED – Description change
2-14. Wire Diagram modify
page24. Image Problem Problem: The image is blurred – Auto => Re-sync
page24. Image Problem Problem: The image is reversed –Install I=>Setup manual
page25. Image Problem Problem: The image is streaked – Tracking => Phase
5-5 Setting an Access Password (Security Lock) –four(arrow)=>Remote digital
10-3. Power & READY LED Blink Code Message-LED Error Messages update
10-4. Factory Preset Display Modes update
10/15/2007

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
3 2007/10/15
CONTENTS
1.COMPLIANCE OF SAFE REPAIR.........................................................................................5
1-1.Caution During Disassembling And Assembling.............................................................5
1-2.Lamp.............................................................................................................................. 5
1-3.Lens................................................................................................................................5
2.SPECIFICATIONS.................................................................................................................6
2-1.Summary Specifications................................................................................................. 7
2-2.DMD Specifications........................................................................................................ 7
2-3.Color Wheel................................................................................................................... 7
2-4.Lamp.............................................................................................................................. 7
2-5.Input/output connectors……………………………………………………………………….7
2-6.I/O Ports Illustration........................................................................................................8
2-7.Remote Control Parts.....................................................................................................9
2-8.Key Pad-Top view-On-screen Display(OSD) buttons and LEDs……………………….. 12
2-9.Bottom view…………………………………………………………………………………...13
2-10.Remote and Keypad…………………………………………………………………….….14
2-11.Adjusting the Zoom, Focus and Keystone………………………………………………..15
2-12.Adjusting the Volume…………………………………………………………………….…16
2-13.BLOCK DIAGRAM..................................................................................................... 17
2-14. Wire diagram………………………………………………………………………………..19
3.TROUBLE SHOOTING....................................................................................................... 20
4.DISASSEMBLY AND ASSEMBLY....................................................................................... 27
5.Flash Upgrade Flow........................................................................................................... 41
5-1.Projector USB Drivers Installation Guide………………………………………………….41
Appendix-A How to clear the USB enumeration registry?...........................................50
Appendix-B Projector USB status on Windows Device Manager………………………52
5-2.DLP Projector Flash-Tool (firmware) User Guide…………………….……….…………..53
5-3.Start with Flash-Tool………………………………………………………………………....54
5-4.Starting and Shutting down the Projector……………………………………………….....59
5-5.Setting an Access Password (Security Lock)………………………………….…………..60
5-6.SETUP / Advanced………………………………………………………………………..…64
5-7.Security Timer………………………………………………………………………………...65
5-8.Options Menu…………………………………………………………………………………66
5-9.OPTIONS / Advanced…………………………….………………………………………….67

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
4 2007/10/15
6. Calibration…………………………….………………………………………….………………..68
7. Color Border Adjustment………………………………………………………………………...72
8. Projection Lamp…………………………………………………………………………………..73
9. Cleaning…………………………………………………………………………………………...76
10.SERVICE NOTE.............................................................................................................. 77
10-1.Cleaning..................................................................................................................... 77
10-2.Inserting the Remote Control Batteries...................................................................... 78
10-3.Power & READY LED Blink Code Message.............................................................. 79
10-4.Factory Preset Display Modes................................................................................... 80
11.Spare part list ................................................................................................................... 83

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
5 2007/10/15
1. COMPLIANCE OF SAFE REPAIR
Be sure to read this Service Manual before providing services. In the projector, full
consideration is taken to ensure safety for fire, electric shock, injury, harmful radiation, and
substance. Therefore, observe the notice described in this Service Manual so that safety is
kept when providing services. Moreover, be sure to observe the notice described in the
Instruction Manual.
Pay attention to the following items during service inspection.
1.1 Cautions during disassembling and assembling
1. This equipment contains parts under high voltage. When making repairs, etc.
Be sure to pull out the power plug beforehand to insure safety.
2. Parts may be very hot immediately after use.
Make sure the equipment has cooled off sufficiently before carrying out repairs.
3. Make sure that parts and screws and wiring, etc. are returned to their original positions.
Tube, tape and other insulation materials have been used for safety reasons.
The internal wiring has been designed to avoid direct contact with hot parts or parts under
high voltage when using clamps or other tools.
4. The parts used in this device have special safety features such as flame-resistance and
anti-voltage properties. When replacing parts, always use parts supplied from the factory.
5. After finishing operations make sure that all parts and wires have been returned to their
original position and that there has been no deterioration of the area around the location that
was worked on.
6. Be sure to use a grounding strap (wrist band) during repair and inspection.
1.2 Lamp
During current conduction, the lamp is in the high-temperature state. In this case, pay
careful attention because a high voltage is used. When replacing a lamp, replace it after
confirming that the lamp has gotten cold sufficiently.
1.3 Lens
Do not look into a lens during projection. This damages your eyes.

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
6 2007/10/15
2. SPECIFICATIONS
2-1. Summary Specifications
Model EP1691 (DP-7610) EP7155 (DP-3510)
Display type TI DMD Type A, 0.65 inches, WXGA TI DMD Type X, 0.55 inches, XGA
Resolution WXGA 1280x768 Native (16:9) XGA 1024x768 Native (4:3)
Color Brilliant Color
Projection distance 1.5 meters ~ 10 meters
Projection screen size 39” to 295” (overdrive 300”) 34” to 260” (overdrive 300”)
Projection lens Zoom Lens / Manual focus / Manual zoom
Zoom ratio 1.15:1
Vertical keystone
correction +/- 15 degrees ; +/- 30 vertical stepping in OSD
Projection methods Front / Rear-Desktop & Front / Rear-Ceiling
Data compatibility IBM PC or compatibles
(VGA, SVGA, XGA, SXGA, WXGA)
IBMPCorcompatibles
(VGA, SVGA, XGA, SXGA, UXGA), Mac
SDTV/EDTV/ HDTV 480i/576i, 480i/576p, 720p, 1080i (thru RGB HD-15)
Video compatibility NTSC/NTSC 4.43, SCART, PAL (B/G/H/I/M/N 60), SECAM
H-Sync 15, 30 – 91.4 KHz 15, 30 – 91.4 KHz
V-Sync 43 - 87 Hz 43 - 87 Hz
Safety certification FCC-B, UL, cUL, TUV, CB, CE, EK ,CCC, IC, ICES-003(Class B)
Operation temperature 5° ~ 40°C
Dimensions 220 mm (W) x 71 mm (H) x 178 mm (D)
AC Input AC Universal 110 ~ 240, Typical @ 110 VAC (100~240)/±10%
Power consumption Typical 260W (standard mode); Typical 210W (ECO mode)
Stand By < 5 watts
Lamp Normal Mode: 200W; Eco Mode: 160W
Audio speaker 1W / 4 ohm mono speaker
PC RGB
Composite video (RCA X 1)
Video
S-Video (DIN)
Audio Mini-jack
Security Kensington lock

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
7 2007/10/15
2-2.DMD Specifications
Unit Min. Max. Typical Notes
DMD type (EP7155) TI 0.55" XGA 12 deg LVDS Type X Dark chip 2
Number of Columns (EP7155) Pixel 1024
Number of Rows (EP7155) Pixel 768
DMD type (EP1691) TI 0.65" WXGA 12 deg LVDS Type A Dark chip 2
Number of Columns (EP1691) Pixel 1280
Number of Rows (EP1691) Pixel 768
Panel Operating Temp. ℃10 65
Ambient Temp ℃25
2-3.Color Wheel
Spec. Unit Min. Max. Typical Notes
Color Segment RGBWY 82/80/78/91/29 (44mm)
2-4. Lamp
Spec. Unit Min. Max. Typical Notes
Lamp Type W 180 230
MH-SA20D-SHP114
Driver
PWB Assy Power Ballast
Board DP-3510
p/n: 5600600579
Soft start Current A 2.4 2.8 2.6
Maximum
Warm-UP Current A 4.0 4.6
4.3
Reflector Type FEX92
Lamp Output
Power W 200W+/-5% (Normal)
160W+/-5% (ECO)
@Vo from 50V to 120V
@Vo from 50V to 120V
2-5. Input/output connectors
VGA and HDMI
PC USB
Composite video (RCAx1)
Video S-Video (Mini-DIN)
Audio Mini-jack
Security Kensington slot

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
8 2007/10/15
2-6. I/O Ports Illustration about Projector
ITEM LABEL DESCRIPTION
1. AC IN (Power) Connect the supplied power cord
2. (USB) Connect the USB cable from a computer
3. AUDIO Connect the audio cable from an audio input device.
4. S-VIDEO Connect the composite or S-video cable from a video device
5. VIDEO Connect a composite video cable from a video device.
6. VGA/SCART Connect a VGA cable from a computer
7. Ventilation
opening
Do not obstruct to keep the projector cool.
8. DIGITAL VIDEO Connect a DIGITAL VIDEO cable from any video source
9. (Security Lock) Secure to permanent object with a Kensington® Lock
system
Note:
If your video equipment has both S-VIDEO and RCA jacks (composite video) connect to the
S-VIDEO connector. S-VIDEO provides a better quality signal

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
9 2007/10/15
2-7. Remote Control Parts
Important:
1. Avoid using the projector with bright fluorescent lighting turned on. Certain high-frequency
fluorescent lights can disrupt remote control operation.
2. Be sure nothing obstructs the path between the remote control and the projector. If the path
between the remote control and the projector is obstructed, you can bounce the signal off
certain reflective surfaces such as projector screens.
3. The buttons and keys on the projector have the same functions as the corresponding
buttons on the remote control. This user’s manual describes the functions based on the remote
control.

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
10 2007/10/15
ITEM LABEL DESCRIPTION
1. IR transmitter Transmits signals to projector
2. Status LED Lights when the remote control is used
3. Laser Press to operate the on-screen pointer
4. Up Up arrow when connected through USB to a PC
5. Right Right arrow when connected through USB to a PC
6. Down Down arrow when connected through USB to a PC
7. R (Right) R key for emulation of USB mouse right click via USB
8. ▲/Page+
(Up arrow)
Page Up key when connected through USB to a PC
Navigates and changes settings in the OSD
9. ►/Re-SYNC
(Right arrow)
Navigates and changes settings in the OSD
Re-Sync VGA source, adjustment for phase, tracking, size, position when OSD off
10. Page-/ ▼
(Down arrow)
Page Down key when connected through USB to a PC
Navigates and changes settings in the OSD
11. Volume +/- Adjusts volume
12. 3 (ZOOM) Zoom in and out
13. 6 (AV mute) Display blank & Audio mute
14. 9 (Video) Input source select Video
15. 8 (VGA) Input source select VGA
16. 5 (Freeze) Freeze/unfreezes the on-screen picture
17. 7 (S-Video) Input source select S-Video

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
11 2007/10/15
18. 4 (D.Video) Input source select digital video
19. 1 (Brightness) Brightness menu
20. 2 (Menu) Opens the OSD
21. Keystone +/- Corrects image-trapezoid (wider top/bottom) effect
22. ◄(Source) Navigates and changes settings in the OSD
Input source selection when OSD Off
23. ◄┘(Enter arrow) Changes settings in the OSD
24. L (Left) L key for emulation of USB mouse left click via USB
25. Left Left arrow when connected through USB to a PC
26. Enter Enter key when connected through USB to a PC
27. Power Turns the projector On or Off
28. Laser Use as on-screen pointer. DO NOT POINT IN EYES.
Note:
The remote control can only interface with a computer when connected to the computer
through a USB cable connection. The computer cable connects a computer to the projector for
display purposes only.
Remote Control Operating Range
The remote control uses infrared transmission to control the projector. It is not necessary to
point the remote directly at the projector. Provided you are not holding the remote
perpendicular to the sides or the rear of the projector, the remote will function well within a
radius of about 10 meters (33 feet) and 30 degrees above or below the projector level.

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
12 2007/10/15
2-8. Key Pad -- Top view - On-screen Display (OSD) buttons and LEDs
ITEM LABEL DESCRIPTION
1. Power Turns the projector On or Off
2. ◄/Source (Left arrow) Select the input device, Navigates and changes settings in the OSD
on LED Green still on
stand-by mode LED Flashing Green off 2.5s / on 1s
Warming up mode LED Flashing Green off 2.5s / on 1s
Power LED
Off (cooling down) LED Flashing Green 10s => LED Green off
On Lamp not ready—do not press the power button
3. Lamp LED
Off Lamp is in normal state
On System over temperature
4. Temp LED
Off Normal state
5. AV-Mute Display blank and audio mute
6. Enter Enter key for the OSD menu
7. ▲/Keystone+
(Up arrow)
Corrects image-trapezoid (wider bottom) effect
Navigates and changes settings in the OSD
8. ►/Re-Sync
(Right arrow)
Re-Sync VGA source, adjusts phase, tracking, size, position
Navigates and changes settings in the OSD
9. ▼/Keystone -
(Down arrow)
Corrects image-trapezoid (wider top) effect
Navigates and changes settings in the OSD
10. Menu To switch OSD menu On or Off

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
13 2007/10/15
2-9. Bottom view
ITEM LABEL DESCRIPTION
1. Projection lamp cover
screws
Remove when changing the lamp
2. Height adjuster button
Push to release height adjuster
3. Height adjuster Adjuster drops down when adjuster button is pushed
4. Strap mount Fasten the lens cap cover
5. Tilt adjuster Rotate adjuster lever to adjust angle position

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
14 2007/10/15
2-10. Remote and Keypad
Remote Control Operating Range
The remote control uses infrared transmission to control the projector. It is not necessary to
point the remote directly at the projector. Provided you are not holding the remote
perpendicular to the sides or the rear of the projector, the remote will function well within a
radius of about 10 meters (33 feet) and 30 degrees above or below the projector level.
Projector and Remote Control Buttons
The projector can be operated using the remote control or the buttons on the top of the
projector. All operations can be carried out with the remote control; however the buttons on the
projector are limited in use. The following illustration shows the corresponding buttons on the
remote control and on the projector.
Remote Control
Some buttons on the projector have two functions. For example, item 9/11 on the projector
functions both as the keystone button and as the up arrow key in OSD menus.

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
15 2007/10/15
2-11. Adjusting the Zoom, Focus and Keystone
1. Use the Image-zoom
control (on the
projector only) to
resize the projected
image and screen size
B
.
2. Use the Image-focus
control (on the
projector only) to
sharpen the projected
image
A
.
3. Press the Keystone
button on the remote
control. The
corresponding buttons
are seen on the panel
4. Use the Keystone
button to correct
image distortion.

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
16 2007/10/15
2-12. Adjusting the Volume
1. Press the Volume +/-
button on the remote
control
2. Use the Volume +/-
button to adjust the
level.
3. Press the AV mute
button on the remote
control to turn off the
volume.

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
17 2007/10/15
2-13. Block Diagram

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
18 2007/10/15

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
19 2007/10/15
2-14. Wire diagram

Delta Elec. Inc. EP7155 & EP1691 ver.02
Company Confidential Optoma_______________________ Delta____________
20 2007/10/15
3. TROUBLE SHOOTING
By checking operations during normal usage time, it is possible to carry out judgments on malfunction
to a certain extent. Carry out the following checks before disassembling the equipment.
Waiting
Power On
No
No
Yes
Yes
Connect the power cord
POWER: Blink
POWER: 4 Blinks
POWER: 7 Blinks
• Cable of Power Supply Unit and thermostat Ass’y.
• Check the connection of Power Supply (CON2 to CN900)
• Power Supply Unit malfunction
• Check keypad connection
•Thermal Break Sensor error
•Switch (CN342) is open
•Case Open
•Switch (CN343) is open malfunction
Yes
POWER: Blink
Stand-by ready
No