Eiki EK-800U User manual

SERVICE MANUAL
Copyright January 2016 All Rights Reserved
EK-800U
Date Revise Version Description
2016.01.11 V1.0 Initial Issue
(C) 2016 EIKI Industrial Inc,

EK-800U
2
Preface
This manual is applied to EK-800U projection system.The manual gives you a brief
description of basic technical information to help in service and maintain the product.
Your customers will appreciate the quick response time when you immediately identify
problems that occur with our products.We expect your customers will appreciate the
service that you offer them.
This manual is for technicians and people who have an electronic background.Please send
the product back to the distributor for repairing and do not attempt to do anything that is
complex or not mentioned in the troubleshooting.
Note: The information found in this manual is subject to change without prior notice.Any
subsequent changes made to the data herein will be incorporated in future edition.
EK-800U Service Manual
Copyright Jan. 2016
All Rights Reserved
Manual Version Rev 1.0

EK-800U
3
Table of Content
Chapter 1 Introduction
Highlight 1-1
Chapter 2 Disassembly Process
Equipment Needed & Product Overview 2-1
Disassemble Projector Lens 2-2
Remove the Fan 1 and Fan 2 2-3
Remove the Lamp 1 and Lamp 2 Module 2-5
Remove the Color Wheel Module 2-6
Remove the Fuse 2-7
Remove Top Cover 2-8
Remove Main Board 2-9
Remove the front cover and components 2-16
Remove the Back Cover 2-18
Remove the Left Cover 2-21
Remove the Keypad 2-22
Remove the Right Cover and Fan 4 2-23
Remove the lamp driver 2-24
Remove the Optical Engine Module 2-27
Remove the DA,Lamp Housing 2-30
Remove the DMD,DMD Board 2-31
Remove the Color Wheel Docking Board 2-33
Remove the AC Inlet 2-34
Remove the Power Supply 2-35
Remove the Fan 7 and Fan 10 2-36
Remove the bottom cover 2-37
Repair Action 2-38

EK-800U 4
Chapter 3 Troubleshooting
LED Lighting Message 3-1
Equipment Needed 3-2
Main Procedure 3-3
No Power Troubleshooting 3-4
Power Troubleshooting 3-5
Pin Protect Troubleshooting 3-8
Image Performance Troubleshooting 3-9
Remote Control Troubleshooting 3-13
Network Troubleshooting 3-14
Chapter 4 Test & Inspection
Test Equipment Needed 4-1
Service Mode and Factory Mode 4-1
Factory Reset 4-3
Calibration 4-4
Adjustment 4-11
Chapter 5 Firmware Upgrade
Formatter/Scalar/LAN/MCU Firmware Upgrade 5-1
Recovery Mode 5-9
Re-write Serial Number 5-11
Appendix A
Exploded Image I

1-1
EK-800U
Chapter 1 Introduction
1. Introduction
1-1 Highlight
No Item Description
1Dimensions (W xH x D)
• 520 x 208 x 591 mm (with protrusion)
• 520 x 194 x 591 mm (without protrusion)
2 Weight (kg) • 23.8 kg (without lens)
3 Power Supply
• 1150W (110V)
• AC 100 - 120 V, 200 - 240 V
• Fuse:250V 15A
4 Keystone Correction
• Horizontal: +/- 20 degrees
• Vertical: +/- 20 degrees
5 Brightness • Normal: 12000 lm
• Eco: 9600 lm
6 Throw Ratio
• AH-B22010(A18): 0.84~1.02
• AH-B22020(A19): 1.02~1.36
• AH-B22030(A20): 1.20~1.50
• AH-B21010(A21): 1.50~2.00
• AH-B24010(A22): 2.00~4.00
• AH-B23010(A23): 4.00~7.20
7 Uniformity • 90% (JBMA)
8Lamp • 1500 hours typical (Normal:465W)
• 2000 hours typical (Eco:370W)
9 I/O Terminal
• HDBase-T:
• 3G HD-SDI:
• HDMI:
• DVI-D:
• R/G/B/H/V, Y/Pb/Pr:
• VGA:
• Video:
• VGA (Out):
• 3D Sync:
• RJ45 x 1
• BNC x 1
• HDMI (v1.4a)x 1
• DVI-D x 1
• BNC x 5
• D-sub 15 pin x 1
• BNC x 1
• D-sub 15 pin x 1
• BNC x 1

1-2 EK-800U
Chapter 1 Introduction
No Item Description
10 Control Terminal
• LAN Control:
• Remote Control IN:
• Remote Control OUT:
• Serial port (RS232C):
• Wi-Fi (with dongle):
• Service:
• RJ45 jack x 1
• Mini jack (3.5mm) x 1
• Mini jack (3.5mm) x 1
• D-Sub 9 pin (Cross) x 1
• USB Type A x 1
• Mini USB x 1
11 DMD chip • 0.96" WUXGA, Type A, DC3
12 Native resolution • 1920 x 1200
13 Video Compativility • NTSC (M, 3.58/4.43 MHz)
• PAL (B/D/G/H/I/M/N, 4.43 MHz)
14 Color Wheel • Brightness type (Normal): 6 segments (Y44 type)
• Color type (Optional): 6 segments (Y41 type)
15 Operating Temperature
• 0~40 degree
• 0~2500 ft: 0~40 degree
• 2500~5000 ft: 0~35 degree
• 5000~10000 ft: 0~30 degree
Note:Measurement,measuring conditions and method of notation all comply
with ISO 21118 international standards.

2-1
EK-800U
Chapter 2 Disassembly Process
2. Disassembly Process
2-1 Equipment Needed & Product Overview
1. Screw Bit (+) :105
2. Screw Bit (+) :107
3. Screw Bit
(-) :107
4. Hex Sleeves 5 mm
5. Hex Sleeves :14.0 mm
6. Needle-nose pliers
7. Projector
* Caution:
-This process is protective level II. Operators should wear electrostatic chains.
-The unit should be powered down and disconnected from mains.
 -WhendisassembleEnginemodule(2-18),pleasenoticethatitrequirespecic
environmental conditions (clean room).

Chapter 2 Disassembly Process
2-2 EK-800U
2-2 Disassemble Projector
Lens
1. Press and hold on the lens bar.
2. Hold on projector lens, rotate it carefully
(As red arrow), then remove it carefully.
lens

Chapter 2 Disassembly Process
2-3
EK-800U
2-3 Remove the Fan 1 and Fan 2
1. Open the lamp cover module to loosen two
captive screw.
2. Remove the lamp cover module.
3. Loosen four screws and unplug two connectors
to remove the fan 1 and fan 2.
4. Disconnect the extended wire then separate
the outlet vent cover and fan.

Chapter 2 Disassembly Process
2-4 EK-800U
5. Tear off two rubbers to separate fan 1 and fan 2.
Note:Fan 1 and fan 2 are the same.
6. Unscrew two screws to remove the fan docking board.
7. Replace the rear cover if required.
Fan docking board
Rear cover

Chapter 2 Disassembly Process
2-5
EK-800U
2-4 Remove the Lamp 1 and Lamp 2 Module
1. Loosen three captive screws to remove lamp 1 module.
2. Loosen three captive screws to remove lamp 2 module.
lamp1
lamp2

Chapter 2 Disassembly Process
2-6 EK-800U
2-5 Remove the Color Wheel
Module
1. Loosen one screw to open the Color wheel
cover.
2. Loosen three captive screws to take out
the color wheel module.
CW cover
Color wheel

Chapter 2 Disassembly Process
2-7
EK-800U
2-6 Remove the Fuse
1. Remove the fuse holder by rotating it
counter-clockwise.
2. Take out the fuse holder.
3. Separate the holder and fuse.
Fuse

Chapter 2 Disassembly Process
2-8 EK-800U
2-7 Remove Top Cover
1. Loosen four captive screws rst.
2. Pull the top cover ahead to remove top
cover module.
Note:There are eight snaps under the top
cover module.
Top cover

Chapter 2 Disassembly Process
2-9
EK-800U
2-8 Remove Main Board
1. Remove ten (yellow) screws securing top
shielding.
2. Remove nine hex screws ,two captive
screws (red) and one hex screw
(yellow).
3. Cut off the cable tie.

Chapter 2 Disassembly Process
2-10 EK-800U
4. Remove nine screws (yellow) and unplug twenty one connectors (red) to remove
formatter board module.
A
B
C
D
E
FG
H
I
JK
L
M
N
O
P
Q R ST

Chapter 2 Disassembly Process
2-11
EK-800U
Item Male Connector
on Connector Board The key feature Figure
A J48 IR
Composed of Red/Black/White Wire,
White Connector and Black wire tube
(3 pin)
B J67 FAN1/FAN2/FAN3 White Connector and Black wire tube
(12 pin)
C J49 TO CW BD White Connector and Black wire tube
(20 pin)
D J46 REAR LED White Connector and Black wire tube
(10 pin)
E J22 LIGHT SENSOR
Composed of Red/Black/Yellow Wire,
White Connector and Black wire tube
(3 pin)
F DA SENSOR
Composed of Red/Black/White Wire,
White Connector and Black wire tube
(3 pin)
G J35 DA MOTOR Composed of Red/Black/Yellow/Green
Wire, White Connector (4 pin)
H J53 TO FAN BD White Connector and Black wire tube
(30pin)
I J18 LAMP2 White Connector and Black wire tube
(5 pin)
J J17 LAMP1 White Connector and Black wire tube
(5 pin)
K J40 H-SENSOR
Composed of White/Yellow/Red/Black/
Gary Wire, White Connector and
Black wire tube (5 pin)

Chapter 2 Disassembly Process
2-12 EK-800U
Item Male Connector
on Connector Board The key feature Figure
L J39 H-MOTOR
Composed of Orange/Gray/Black/Yel-
low Wire, White Connector and Black
wire tube (4pin)
M J42 V-SENSOR
Composed of White/Yellow/Red/Black/
Gary Wire, White Connector and
Black wire tube (5 pin)
N J41 V-MOTOR
Composed of Yellow/Black/Red Wire,
White Connector and Black wire tube
(4 pin)
O J55 SHUTTER SENSOR Composed of Red/Black Wire, White
Connector and Black wire tube (2 pin)
P J38 SHUTTER
Composed of Blue/Red/White/Yellow
Wire, White Connector and Black wire
tube (4 pin)
Q J14 LENS MEM/Z/F White Connector and Black wire tube
(10 pin)
R J62 DET
Composed of Black/Red/White/Blue/
Wire, White Connector and Blue wire
tube (4 pin)
S J63 DET
Composed of Black/Red/White/Blue/
Wire, White Connector and Blue wire
tube (4 pin)
T J64 DET
Composed of Black/Red/White/Blue/
Wire, White Connector and Blue wire
tube (4 pin)

Chapter 2 Disassembly Process
2-13
EK-800U
7. Raise main board gently from the front to
disconnect underside connector J27 and
then lift formatter board out of projector.
8. Remove two connectors securing main
board module, then separate the input
cover.
9. Loosen three screws and unplug two
connectors to separate formatter board.
Note: There are two connectors between
formatter board and scalar board.
Formatter board

Chapter 2 Disassembly Process
2-14 EK-800U
10. Loosen three screws (red) and remove
three standoffs (yellow) to separate the
scalar board and PW808 media board.
11. Remove three hex standoffs.
Scalar board
PW808 board