Optoma EX779 User manual

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
1 2010/04/14
PROJECTOR
EX779_ DP437-570
SERVICE MANUAL

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
2 2010/04/14
CONTENTS
1.COMPLIANCE OF SAFE REPAIR........................................................................................4
1-1.Caution During Disassembling And Assembling.............................................................4
1-2.Lamp.............................................................................................................................. 4
1-3.Lens................................................................................................................................4
2.SPECIFICATIONS.................................................................................................................5
2-1.Summary Specifications................................................................................................. 5
2-2.Views of projector parts……..…………………………………….…………………………..7
2-3. Remote control parts………….. .....................................................................................13
2-4.Block Diagram……………………………………………………………………………...…16
3.TROUBLE SHOOTING........................................................................................................17
4.DISASSEMBLY AND ASSEMBLY......................................................................................25
5.Firmware Download...........................................................................................................41
5-1.Projector USB Drivers Installation Guide…………………………………………………..41
Appendix-A How to clear the USB enumeration registry?............................................48
Appendix-B Projector USB status on Windows Device Manager………………………49
5-2.DLP Projector Flash-Tool (firmware) User Guide…………………….……….…………..50
5-3.DLP Projector Flash-Tool (splash logo) User Guide………………………………..….…56
6. ADC Calibration….……………………………………….……………………………..…..…..62
6-1.Calibrate Analog RGB (1024 x 768 @ 60Hz)................................................................63
6-2.Calibrate Analog Ypbpr………………..……………………………………….………….…64
6-3.Color Wheel Index, DMD Contrast and BrightnessAdjustment @ RGB source……...65
7. 3D Function………………………………………………………………………………………66
8. Projection Lamp……………………………………………………………………………..…..68
9.How To Program By RS232……………………………..………………………………..…….72
10. EDID……………………………………………………………………………….………..……85
11.RJ45…………………………………………………………………………………………...….92
11-1. OSD Setting………………………………………………………………………………...94
11-2. LAN_RJ45…………………………………………………………………………………..95
12.SERVICE NOTE………………………………………………………………………………..101
13.Inserting the Remote Control Batteries……………………………………………...…...104
14. LED Indicator Table……………………………………………………………………..…...105
15.Screen size and projector…………………………………………………………….……..106
16.Color Border Adjustment……………………………………………………………………107

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
3 2010/04/14
17.Table of supported Frequency ................................................................................…. 108
18. Ceiling Installation…………………………………………………………………………110
19.Spare parts list…………………………………………….……………………………….…..111
Revised History
Date Description
2010-03-08
Draft Edit - Preliminary
2010-03-22
Version.00
2010-04-14
Version.01, add 3D Function

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
4 2010/04/14
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. EX779
Company Confidential Optoma__________________ Delta________________
5 2010/04/14
2. SPECIFICATIONS
2-1. Summary Specifications
Model EX779
Display type TI DLP DMD 0.7” XGA type-A x 1 (LVDS, 12deg)
Resolution XGA 1024x768 Native
Projection distance 1.5 meters ~ 10 meters
Projection screen size 25.7”~300”
Projection lens Manual Focus/Manual Zoom x 1.15
Zoom ratio 1.8-2.1
Vertical keystone
correction +/- 15 degrees
Projection methods Front, Rear, Desktop/Ceiling (Rear, Front)
Data compatibility IBM PC or compatibles (VGA, SVGA, XGA, SXGA, UXGA), Mac
SDTV/EDTV/ HDTV 480i, 576i, 480p, 576p, 720p, 1080i, 1080p
Video compatibility NTSC, PAL , SECAM
H-Sync 15, 31 – 90 kHz
V-Sync 50 – 85 Hz
Color wheel 5 Seg, RYGWB, 2x
Operation temperature
5°~ 35°C
Dimensions 326.22 mm (W) x 106.2 mm (H) x 255 mm (D)
Weight <8.1 lbs (typ)
AC Input AC Universal 100 ~ 240, Typical @ 110VAC (100~240)/+-10%
Power consumption 360W
Stand By <1watt
Lamp 280W
Brightness Normal: 3300lm(Min)-4000lm(Max) ; ECO: 2500lm(Min)-3200lm(Max)
Audio speaker 3W mono speaker
VGA IN-1
VGA IN-2
Input Terminals
S-Video x 1

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
6 2010/04/14
Composite Video x 1
DVI-D IN
HDMI IN
AUDIO IN ( L& R)
AUDIO IN x 1
VGA x 1 (Loop Thru only for VGA IN-1)
Output Terminals AUDIO OUT x 1
RS-232C
RJ45
USB (type B)
Control Terminals
12V DC
Security Kensington lock

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
7 2010/04/14
2-2. Views of projector parts
A. MAIN UNIT

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
8 2010/04/14
I TEM L ABEL D ESCRIPTION
1. Tilt-Adjuster Button Push to release height adjuster
2. Tilt-Adjuster Feet Adjusts level of projector
3. Lens cap Protect lens when not in use
4. LED Indicators Display the LED blink status
5. Power Button Turning on the projector.
6. Function Keys See Top view—On-screen Display (OSD) buttons.
7. Zoom ring Enlarges the projected image
8. Focus ring Focuses the projected image
9. Front IR receiver Receive IR signal from remote control
10. Lens Projection Lens
11. Connection ports Connect the signals from a device
12. Kensington Lock Secure to permanent object with a Kensington lock system
13. Tilt-Adjustment Foot Adjusts level of projector
14. Built-in Speaker Outputs audio sounds
15. Back IR Receive Receive IR signal from remote control
16. Power Socket Connect the power cable
Important:
Ventilation openings on the projector allow for good air circulation, which keeps the projector lamp
cool. Do not obstruct any of the ventilation openings.B. Top view---On-screen Display (OSD) buttons
and LEDS

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
9 2010/04/14
B. Display (OSD) buttons and LEDS

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
10 2010/04/14
I TEM L ABEL D ESCRIPTION
LED0 POWER LED Display the power on/off sequence status
LED1 LAMP LED Display the the lamp status
LED2 TEMP LED Display the thermal status
KEY0 (Power button) Turns the projector On or Off.
KEY1 ▲(Up cursor) / Keystone+
Navigates and changes settings in the OSD Quick Menu – For
Keystone
KEY2 MENU Opens and exits OSD menus
KEY3 ►(Right cursor) / Volume Navigates and changes settings in the OSD
Quick Menu – For Volume
KEY4 AUTO Optimizes image size, position, and resolution
KEY5 ▼(Down cursor)
/Keystone-
Navigates and changes settings in the OSD
Quick Menu – For Keystone
KEY6 ENTER Enter or confirm highlighted OSD menu item
KEY7 ◄(Left cursor) / Volume Navigates and changes settings in the OSD
Quick Menu – For Volume
KEY8 SOURCE Enter the Source menu ( Not available on TW30x )

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
11 2010/04/14
C. Connection ports
I TEM L ABEL D ESCRIPTION
1. USB Connect the USB CABLE from a computer
2. VGA OUT Connect the RGB CABLE to a display
3. VGA IN Connect the RGB CABLE from a computer and components
4. VGA IN Connect the RGB CABLE from a computer and components
5. DVI-D IN Connect the DVI CABLE from a computer and components
6. HDMI IN Connect an HDMI CABLE from an HDMI device
7. S-VIDEO IN Connect the S-VIDEO CABLE from a video device
8. VIDEO IN Connect the COMPOSITE CABLE from a video device
9. DC OUT Output 12Vdc(200ma) for display screen motor use

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
12 2010/04/14
10. Kensington Lock Secure to permanent object with a Kensington® Lock system
11. Speaker Outputs audio sound
12. IR RECEIVE Receive IR signal from remote control
13. AUDIO IN (L and R) Connect the COMPOSITE CABLES from a video device
14. AUDIO IN Connect an AUDIO CABLE from the input device.
15. RS-232 Connect RS-232 serial port cable for remote control
16. AUDIO OUT Connect an AUDIO CABLE for audio loop through
17. LAN Connect a LAN CABLE from Ethernet
18. AC IN Connect the POWER CABLE
Note:
If your video equipment has various input sources, it is recommended to connect in priority of
HDMI/DVI, component (thru VGA), S-Video, Composite for better picture quality.

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
13 2010/04/14
2-3. Remote control parts.

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
14 2010/04/14
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.
I TEM L ABEL D ESCRIPTION
1.
Laser Use as on-screen pointer. DO NOT POINT IN EYES.
2.
Status LED Lights when the remote control is used
3.
Power Turns the projector on or off
4.
Up Up key when connected through USB to a PC
5.
Left Left key when connected through USB to a PC
6.
Enter Enter key when connected through USB to a PC
7.
L Left key when connected through USB to a PC
8.
Source/Left key Detects the input device/Navigates and changes settings in the OSD.
9.
Enter Navigates and changes settings in the OSD
10.
Keystone top/bottom
Corrects image-trapezoid (wider top/bottom) effect
11.
DVI-D/YPbPr/1 Changes the signal device to COMPONENT VIDEO.
12.
HDMI/4 Changes the signal device to HDMI
13.
S-VIDEO/7 Input source select S-Video
14.
MENU/2 Opens the OSD
15.
IR transmitter Transmits signals to projector

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
15 2010/04/14
I TEM L ABEL D ESCRIPTION
16.
Laser Press to operate the on-screen pointer
17.
Right Right key when connected through USB to a PC
18.
Down Down key when connected through USB to a PC
19.
R Right key when connected through USB to a PC
20.
Page up/
Up Key
Page up when connected through USB to a PC
Navigates and changes settings in the OSD
21.
Re-Sync/Right Key Navigates and changes settings in the OSD
22.
Volume +/- Speaker volume decrement and increment
23.
Page down/
Down Key
Page down when connected through USB to a PC
Navigates and changes settings in the OSD
24.
ZOOM/3 Zoom in/out
25.
AV MUTE/6 Display blank and mute audio
26.
Video/9 Input source select Video
27.
Freeze/5 Freeze/unfreezes the on-screen picture
28.
VGA/6 Input source select VGA

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
16 2010/04/14
2-4. Block Diagram

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
17 2010/04/14
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
Yes
Connect the power cord
• Power Supply Unit malfunction
•
Check the connection of Power Supply (Power BD CN201 to MB CN900)
• Check keypad connection
• Check voltage (12v, 5v, 3.3v, 1.8v,…etc) on Main Board.
• Lamp Cover A’ssy is not attached
• Thermal break sensor is open.
• Connector (CN11) on keypad Board disconnected.
<
Stand
-
by >
Power: Blink (Green)
Lamp : OFF
Temp
:
OFF
< System error
>
Power: Blink7 (Green)
Lamp: OFF
Temp: OFF
Yes
< G794 erro
r >
Power: Blink4 (Green)
Lamp: Blink 4 (Red)
Temp: OFF
•
Check the system monitor & fan control IC (U302)
<
Power
supply
error >
Power: OFF
Ready: OFF
Temp:
OFF
Yes
Yes
No
No
No
No

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
18 2010/04/14
Turn the
power ON
< Powering up >
Power: Flashing Green
(0.5sec on/off)
Lamp: OFF
Temp: OFF
< Normal operation >
Power: Light (Green)
Lamp: OFF
Temp: OFF
< Lamp Error >
Power: Blink (Green)
Lamp: Light (Red)
Temp: OFF
System Change a new Lamp
Yes

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
19 2010/04/14
No
Image
Display
Ignition sound doesn’t exist.
• Power Board Ass’y malfunction (CN102) doesn’t output 370 V)
• Ballast Connector (CJ4) or (CJ1) disconnected
• Main Board (CN530) disconnected
• Main Board or Ballast Ass’y malfunction
Ignition sound exists.
• Lamp failure (Lamp is broken, damaged, or burst)
Yes
< Lamp
-
Lit error >
Power: Blink (Green)
Lamp: Light (Red)
Temp: OFF
• Flexible cable of Color WheelAss’y is disconnected (CN650) or broken.
• Index Board (CN8) / Main Board (CN850) is disconnected
• Index Board malfunction
• Color WheelAss’y malfunction (doesn’t rotate).
• Main Board Ass’y malfunction (Color Wheel Ass’y doesn’t rotate).
< Color Wheel error >
Power: Blink9 (Green)
Lamp: OFF
Temp: OFF
Yes
<
Sensor Error
>
Power: Blink 4 (Green)
Lamp: Blink 5 (Red)
Temp: OFF
Yes
No
No
(CN852) on main board is disconnected

Delta Elec. Inc. EX779
Company Confidential Optoma__________________ Delta________________
20 2010/04/14
Confirmation with none-signal state
Yes
No
No
No
Yes
No
Yes
Projector logo
screen display
Yes
• CW Sensor Board Ass’y malfunction
• Main Board Ass’y malfunction
• DMD Set malfunction
Still
dark after the
lamp is on for more
than 1min
• Lamp deterioration (malfunction/usage time)
• Power Supply Unit malfunction
(No change occurs even after lamp replacement.)
• DMD Set malfunction
(No change occurs even after lamp replacement.)
Press “Menu” key • Remote controller set malfunction, Low battery, and outside
operation rang
• Main BoardAss’y malfunction
•Connector (CN451)、(CN9 of IR PWB) disconnected
• IR PWB Ass’y malfunction
• Check the pattern generator setting is wrong
• Main BoardAss’y malfunction
• DMD Set malfunction
• Setting on PC side(external output setting, resolution, etc.)
• Cable malfunction (disconnection and pins broken)
• Connector (CN903 of IO BD) disconnected
• Speaker Ass’y malfunction
• Main Board Ass’y malfunction
Check the
projection
Screen
I
mage
display
normally
Input each signal
Speaker work
normally
No
Yes
Yes
Yes
No
No
No
No
No
Image
Display
“No signal” Message display
Yes