Vivitek DS262 User manual

DS262/DX263/DW265
DH268/DX281-ST/DW282-ST
Projector
Service Manual
Version: A
Date: 2017/07/06

Update History
Date of issue
Published by
Version
Desc.
2017/07/06
liyang
A
New version released.

■Safety Instructions
SAFETY PRECAUTIONS
WARNING:
The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary
side of the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot
circuit is identified with the line ( ) in the schematic diagram. For continued product safety and
protection of personnel injury, servicing should be made with qualified personnel.The following precautions
must be observed.
1:An isolation transformer should be connected in
the power line between the projector and the AC
line before any service is performed on the
projector.
2:Comply with all caution and safety-related notes
provided on the cabinet back, cabinet bottom,
inside the cabinet or on the chassis.
3:When replacing a chassis in the cabinet, always
be certain that all the protective devices are
installed properly, such as, control knobs,
adjustment covers or shields, barriers, etc.
DO NOT OPERATE THIS PROJECTOR
WITHOUT THE PROTECTIVE SHIELD
IN POSITION AND PROPERLY SECURED
4:Before replacing the cabinet cover, thoroughly
inspect the inside of the cabinet to see that no
stray parts or tools have been left inside
Before returning any projector to the
customer,the service personnel must be sure
it is completely safe to operate without danger
of electric shock
PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of the projector.
Components indicated by mark in the parts list and the schematic diagram designate components in
which safety can be of special significance. It is, therefore, particularly recommended that replacement of
there parts must be made by exactly the same parts.
SERVICE PERSONNEL WARNING
Eye damage may result from directly viewing the light produced by the lamp used in this equipment. Always
turn off lamp before opening cover .The Ultraviolet radiation eye protection required during this servicing.
Never turn the power on without the lamp to avoid electric-shock or damage of the devices since the
stabilizer generates high voltages (15kV-25kV) at its starts.Since the lamp is very high temperature during
units operation replacement of the lamp should be done at least 45 minutes after the power has been turned
off, to allow the lamp cool-off.

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CONTENTS
CHAPTER1 INTRODUCTION ........................................................................................................................................... 4
1.1 TECHNICAL SPECIFICATION............................................................................................................................................................ 4
1.2 COMPATIBILITY MODES ............................................................................................................................................................... 6
1.3 PRODUCT OVERVIEW .................................................................................................................................................................. 9
1.4 SYSTEM BLOCK DIAGRAM .......................................................................................................................................................... 14
1.5 CONNECTOR INFORMATION ........................................................................................................................................................ 16
CHAPTER 2 MACHINE DISASSEMBLY ............................................................................................................................19
2.1 TOOLS.................................................................................................................................................................................... 19
2.2 DISASSEMBLY PROCESS.............................................................................................................................................................. 20
CHAPTER 3 TROUBLESHOOTING ..................................................................................................................................27
3.1 LED LIGHTING MESSAGE ........................................................................................................................................................... 27
3.2 MAIN PROCEDURE ................................................................................................................................................................... 28
CHAPTER 4 FUNCTION TEST & ALIGNMENT PROCEDURE .............................................................................................32
4.1 SIGNAL TEST (EACH I/O CAN FUNCTION NORMALLY)........................................................................................................................ 32
4.2 OPERATION TEST ...................................................................................................................................................................... 32
4.3 IMAGE QUALITY INSPECTION....................................................................................................................................................... 34
4.4 RESOLUTION............................................................................................................................................................................ 38
4.5 FRONT INFRARED SENSOR........................................................................................................................................................... 38
4.6 SAFETY TEST EQUIPMENTS.......................................................................................................................................................... 38
4.7 HOW TO ENTER FACTORY MODE .................................................................................................................................................. 39
4.8 COLOR WHEEL INDEX ADJUST..................................................................................................................................................... 40
4.9ADC CALIBRATION PROCEDURE .................................................................................................................................................. 41
4.10 HOW TO RESET LAMP HOURS .................................................................................................................................................... 42
CHAPTER 5 FIRMWARE UPGRADE................................................................................................................................43
5.1 SETUP TOOL/EQUIPMENT .......................................................................................................................................................... 43
5.2 UPGRADING PROCEDURE ........................................................................................................................................................... 43
APPENDIX A .................................................................................................................................................................53
IEXPLODED OVERVIEW ................................................................................................................................................................... 53
II FRU (FIELD REPLACEABLE UNIT)LIST.............................................................................................................................................. 54
APPENDIX B .................................................................................................................................................................61
ISERIAL NUMBER SYSTEM DEFINITION ............................................................................................................................................... 61
II PCBA CODE DEFINITION............................................................................................................................................................... 62

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APPENDIX C .................................................................................................................................................................63
RS232 CODE TABLE ....................................................................................................................................................................... 63
APPENDIX D.................................................................................................................................................................67
CEILING MOUNT DRAWING.............................................................................................................................................................. 67

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Chapter1 Introduction
1.1 Technical Specification

5
Attention for handing
♦Do not touch the lamp until it has cooled completely, because the lamp is very
hot during operation and immediately after turned off.
♦The lamp has to be fixed firmly to the base or socket.
♦Turn off the power supply during maintenance.
♦Do not hold the lamp except outer surface of the reflector.
♦Wear protective gloves and eyeglasses when handling the lamp.
♦Any unusual shock or vibration to the lamp should be avoided.
♦The lamp contains the mercury. Its breakage might cause mercury to flow out of
the reflector. Please manage provision at the customer’s product.
♦Do not pull the lead wire and plug by more than 24.5N.
♦Please be careful of handling the lamp because it is made of glass.
♦Please notice for keeping or handling the lamp, because there is a projection of
this lamp with reflector ahead.
♦Do not touch the bulb and the mirror area of the reflector.
Attention for use
♦Do not close or cover the lamp with any flammable stuff.
♦During operation, the lamp is under extremely high pressure. Please manage
provision at the customer’s product to prevent fragments of bulb and mercury
from flowing out of it. If the lamp bursts in case of an emergency, the sound will
be occurred.
♦Lamp operation should be with the specified lamp driver and the system only.
♦Do not look at the lamp directly during operations.
♦Do not expose your skin directly. We recommend to you to put on something for
protection for your skin. For example, long sleeve shirt, gloves, glassed and so
on.
♦Do not modify the lamp and never use a lamp that has been modified.
♦Any unusual shock or vibration to the lamp should be avoided during operation.
♦Do not use any broken lamps.
♦Dispose of used lamps according to your local instruction.
♦Do not turn on the lamp while the system is opened.
♦The lamp contains mercury. If the lamp bursts during operation ventilate the area
sufficiently to avoid inhaling harmful mercury fumes.
♦Use the lead below 200℃to prevent a deterioration of cladding clad of the
fluorocarbon resin.
♦The lead wire insulation clad shouldn’t touch the reflector.
♦Exchange the lamp that has already passed the life time immediately.

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1.2 Compatibility Modes
1. VGA Analog
Supported timing for PC input
The timings showing above may not be supported due to EDID file and VGA graphic card
limitations. It is possible that some timings cannot be chosen.

7
Supported timing for Component-YPbPr input
2. HDMI Digital
Supported timing for PC input

8
The timings showing above may not be supported due to EDID file and VGA graphic card
limitations. It is possible that some timings cannot be chosen.
Supported timing for video input
3. Video/S-Video
Supported timing for Video input

9
1.3 Product Overview
Front/Top side
DS262/DX263/DW265/DH268
DX281-ST/DW282-ST

10
#
Description
#
Description
1 Quick-release lever 6 Rear adjuster foot
2 Front adjuster foot 7 Zoom ring
3 Projection lens 8 Focus ring
4 Front IR remote control sensor 9 Control panel
5 Ventilation holes 10 Lamp cover
Rear side
#
Description
#
Description
1 AC power socket 2 Connection ports
3 Kensington anti-theft lock slot

11
Bottom side
#
Description
1 Ceiling mount holes
Note:
1. This projector can be used with a ceiling mount for support. The ceiling mount is not
included in the package.
2. Contact your dealer for information to mount the projector on a ceiling.
3. When installing the unit, incorporate a readily accessible disconnect device in the fixed
wiring, or connect the power plug to an easily accessible socket-outlet near the unit. If a
fault should occur during operation of the unit, operate the disconnect device to switch the
power supply off, or disconnect the power plug.
Ceiling mount screws:
M4 x 8 (Max. L = 8 mm)
Unit: mm

12
Control Panel
#
Function
Description
1 POWER Turns the projector on or off
2 SOURCE Displays the source selection bar
3 Volume Adjusts volume
4 Keystone Corrects image-trapezoid (wider top/bottom) effect
5 4-WAY KEY
Navigates and changes settings in the OSD
6 ECO BLANK Makes the screen blank
7 AUTO
Auto adjustment phase, h.size, position
8 MENU Opens the OSD
9 BACK
Goes back to previous OSD menu
10 OK Changes settings in the OSD
11 LAMP
(Lamp LED indicator) Refers to "LED Indicator Messages”
12 TEMP
(Temp LED indicator) Refers to "LED Indicator Messages”
13 POWER
(Power LED indicator) Refers to “LED Indicator Messages”

13
Connection Ports
#
Function
Description
1 USB MINI-B This connector is for firmware update.
2 RS-232 When operating the projector via a computer, connect this to the
controlling computer's RS-232C port.
3 PC 1/PC 2 Connect image input signal (analog RGB or component) to this jack.
4 S-VIDEO Connect S-Video output from video equipment to this jack.
5 HDMI-1/HDMI-2 Connect HDMI output from video equipment or computer to this
jack.
6 AUDIO IN Connect an audio output from video equipment or computer to this
jack.
7 AUDIO OUT Connect to a speaker or other audio input equipment.
8 VIDEO Connect composite video output from video equipment to this jack.
9 MONITOR OUT Connect to a computer display, etc.
10 OK Changes settings in the OSD

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1.4 System Block Diagram
For DS262/DX263/DW265/DX281-ST/DW282-ST

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For DH268

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1.5 Connector Information
This section provides each connector location on boards and function of each board. They
will be useful for your detecting the defective boards.
A. Main Board
Connector
Description
No 1
Connect to LFET FAN
No 2 Connect to IR
No 3
Connect to Color Wheel control
No 4 Connect to Color Wheel FFC
No 5
Connect to TUBRO FAN
No 6 Connect to TEMPERATURE CONTROL WIRE
No 7
Connect to RIGHT FAN
No 04
No 03
No 02
No 01
No 05
No 07
No 06

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B. The back side of Main Board
Connector
Description
No 1
Connect to SPEAKER
No 2 Connect to AIO POWER BOARD
No 3
Connect to DMD BOARD
No 02
No 03
No 01

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C. AIO Power Board
Connector
Description
No 1
AC power socket
No 2 Connected to Main board
No 3
Connected to Main Board
No 3
No 2
No 1
No 4