Eiki EK-400X User manual

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DATA PROJECTOR
SERVICE MANUAL
EK-400X
EK-401W
EK-402U

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CONTENTS
1. COMPLIANCE OF SAFE REPAIR..................................................................................................................4
1-1. CAUTIONS DURING DISASSEMBLING AND ASSEMBLING ................................................................................................4
1-2. LAMP .............................................................................................................................................................................4
1-3. LENS..............................................................................................................................................................................4
1-4. EYE SAFETY WARNINGS...............................................................................................................................................5
2. SPECIFICATIONS...........................................................................................................................................6
2-1. SUMMARY SPECIFICATIONS ..........................................................................................................................................6
2-2. VIEWS OF PROJECTOR PARTS .....................................................................................................................................8
2-3. REMOTE CONTROL .....................................................................................................................................................12
2-4. BLOCK DIAGRAM .........................................................................................................................................................15
3. TROUBLE SHOOTING..................................................................................................................................20
4. DISASSEMBLY .............................................................................................................................................28
5. FIRMWARE DOWNLOAD.............................................................................................................................37
6. POWERING ON/OFF THE PROJECTOR.....................................................................................................39
7. SECURITY SETTING.....................................................................................................................................41
8. CALIBRATION...............................................................................................................................................44
10. CLEANING...................................................................................................................................................53
11. TIMING MODE TABLE ................................................................................................................................55
12. SCREEN SIZE & PROJECTION DISTANCE..............................................................................................58
13. RJ45.............................................................................................................................................................61
14. PROJECTOR DIMENSIONS.......................................................................................................................66
15. FAN CONTROL TABLE…………………………………………………………………………………………….73
16. RSPL............................................................................................................................................................74

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Revised History
Ver. Description Date
00 First issue 01-08-2016

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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.

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1-4. Eye Safety Warnings
1. Avoid staring directly into the projector’s beam of light at all times.
2. Minimize standing facing into the beam.
Keep your back to the beam as much as possible.
3. Ensure that projectors are located out of the line of sight from the screen to the audience;
this ensures that, when presenters look at the audience,
they do not also have to stare at the projector lamp.
4. When projector is used in a classroom, adequately supervise students when
they are asked to point out something on the screen.
5. In order to minimize the lamp power needed,
use room blinds to reduce ambient light levels.

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2. SPECIFICATIONS
2-1. Summary Specifications
Model EK-400X EK-401W EK-402U
Display Type DMD, 0.7” XGA, Type A DMD, 0.65” WXGA, S450 DMD, 0.67” WUXGA, Type A
Resolution XGA (1024x768) WXGA (1280x800) WUXGA (1920x1200)
Projection Distance 1.2m ~ 10m
Projection Screen Size 27.6” ~ 344.6” 25.7” ~ 320.9” 26.7” ~ 334”
Projection Lens Manual Focus / Zoom
Zoom Ratio 1.5x
Vertical Keystone
Correction +/- 40 degrees
Projection Methods Front, Rear, Desktop/Ceiling (Rear, Front)
Data Compatibility VGA, SVGA, XGA, WXGA, SXGA, SXGA+, UXGA, WUXGA, Mac
SDTV/EDTV/ HDTV 480i, 576i, 480p, 576p, 720p, 1080i, 1080p
Video Compatibility NTSC, PAL, SECAM
H-Sync 15, 31 ~ 102KHz
V-Sync 24 ~ 30Hz, 47 ~ 120Hz
Operation Temperature 5° ~ 35°C
Dimensions 334 mm (W) x 256.9 mm (D) x 120.8 mm (H)
AC Input AC Universal 100-240V
Power Consumption 300W (ECO), <0.5W(Stand By) / 370W (Normal), <2W(on by Lan)
Lamp 310W (Normal.) / 245W (ECO)
Audio Speaker 3W mono
Input Terminals
VGA IN x2
Display Port x1
Composite x1
S-Video x1
HDMI x2
Audio-In RCA(L/R) x 1
Audio-In (mini jack) x1
Output Terminals VGA-Out (15pin D-Sub) x 1(only from VGA)

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Audio-Out (mini jack) x 1
Control Terminals
RS-232C
3D Sync
Screen Trigger: DC Jack x 1 (DC 12V 200mA output function)
USB (Type mini B) – service only
RJ-45
Security Kensington Lock/ Security Bar

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2-2. Views of Projector Parts
A. Front-Right View
Item Label Description
1. Height adjuster button Push to release height adjuster
2. Height adjuster Adjusts level of projector
3. Lens Projection Lens
4. IR Receiver Receive IR signal from remote control
5. Focus Ring Focuses the projected image
6. Zoom Ring Enlarges the projector image
7. Function Keys See Top view - On Screen Display (OSD) buttons
and LEDs.
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.

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B. Top View-On Screen Display (OSD) buttons and LEDs
Item Label Description
1. (Up cursor) / Keystone+ Navigates and changes settings in the OSD
Quick Menu – For Keystone.
2. (Right cursor) / Volume+ Navigates and changes settings in the OSD
Quick Menu – For Volume
3. (Down cursor) / Keystone- Navigates and changes settings in the OSD
Quick Menu – For Keystone.
4. MENU Opens and exits OSD menu.
5. ENTER Enter or confirm highlighted OSD menu item.
6. (power button) Turns the projector on or off.
7. SOURCE Enter the source menu.
8. AUTO Optimize image size, position, and resolution.
9. (Left cursor) / Volume- Navigates and changes settings in the OSD
Quick Menu – For Volume
10. LAMP LED Flashing Error Code
11. POWER LED Blue Lamp ready, start, cooling
Flashing Error Code
12. TEMP LED Red Over temperature

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C. Rear View
Item Label Description
1. AC IN Connect the power cable
2. USB Connect the USB cable from a computer
3. VGA OUT Connect the RGB cable to a display
(Loop thru only for VGA IN 1)
4. LAN Connect a LAN cable from Ethernet
5. VGA IN 1 Connect the RGB cable from a computer or component device
6. VGA IN 2 Connect the RGB cable from a computer or component device
7. DISPLAYPORT Connect the DISPLAYPORY cable from a DISPLAYPORT device
8. AUDIO IN Connect the AUDIO cable from AUDIO device
9. HDMI 1/ 2 Connect the HDMI cable from a HDMI device
10. 3D SYNC Connect the 3D IR glasses transmitter
11. DC 12V TRIGGER
When connected to the screen through a commercially available
cable, the screen deploys automatically on start up of the projector.
The screen retracts when the projector is powered off (see notes