Acer PD726 Series User manual

PD726 & PH730
Service Guide
PRINTED IN TAIWAN
Service guide files and updates are available
on the AIPG/CSD web; for more information,
please refer to http://csd.acer.com.tw

II
Revision History
Please refer to the table below for the updates made on PD726 & PH730 service guide.
Date Chapter Updates

III
Copyright
Copyright ©2005byAcer Incorporated. All rightsreserved. No part of thispublication may bereproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in
any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without
the prior written permission of Acer Incorporated.
Disclaimer
The information in this guide is subject to change without notice.
Acer Incorporated makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular
purpose. Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the
programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its
dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential
damages resulting from any defect in the software.
Acer is a registered trademark of Acer Corporation.
Intel is a registered trademark of Intel Corporation.
Pentium 4 and Celeron are trademarks of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective holders.

IV
Conventions
The following conventions are used in this manual:
Screen messages Denotes actual messages that appear
on screen.
NOTE Gives bits and pieces of additional
information related to the current
topic.
WARNING Alerts you to any damage that might
result from doing or not doing specific
actions.
CAUTION Gives precautionary measures to
avoid possible hardware or software
problems.
IMPORTANT Reminds you to do specific actions
relevant to the accomplishment of
procedures.

V
Preface
Before using this information and the product it supports, please read the following general information.
1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION
decided for Acer's "global" product offering. To better fit local market requirements and enhance product
competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g.
add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered
in this generic service guide. In such cases, please contact your regional offices or the responsible
personnel/channel to provide you with further technical details.
2. Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information
available on your regional web or channel. If, for whatever reason, a part number change is made, it will
not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer
office may have a DIFFERENT part number code to those given in the FRU list of this printed Service
Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and
service of customer machines.

Table of Contents
Chapter 1 System Introduction 1
Technical Specification 1
Product Overview 3
System Block Diagram 7
Chapter 2 Firmware Upgrade 8
Equipment Needed 8
Installation Procedure 9
Firmware Upgrade Procedure 13
EDID Upgrade 16
EDID Introduction 16
Equipment Needed 16
Setup Procedure 17
EDID Key-in Procedure 17
Chapter 3 Mechanical Disassembly and Reassembly 21
Equipment Needed 21
General Information 21
Mechanical Disassembly Procedure 22
Mechanical Reassembly Procedure 32
Chapter 4 Troubleshooting 42
Equipment Needed 42
LED Lighting Message 42
Main Procedure 43
Function Test and Alignment Procedure 45
Product / Test Equipment / Test Condition 45
Guide to Entering Service Mode and Factory Reset 45
Inspection Procecdure 46
Chapter 5 Exploded Overview 48
Exploded Overview 48
Appendix Serial Number Definition System 91
I. Serial Number System Definition 91
II. PCBA Code Definition 92
III.The Different Parts PD726 / PH730 93

1 Chapter 1
System Introduction - PD726
Technical Specification
Item Description
Dimensions (LxWxH) 350 x 282 x 118.75 mm
Weight Approx. 7.7 lbs (3.5 Kg)
Tilt Angle 6 degree with elevator mechanism
Keystone correction +/-16 degree (32 degree)
Lamp Door Projection Lamp power supply shut off automatically when door is opened
Power Supply
- Universal AC 100-240V ~ 50-60Hz with PFC input
- 300W for OSRAM E21.8 (G2) Lamp @ normal operation
- Variance FAN speed control (Depends on temperature variant)
Projection Lens [email protected], F/[email protected], 1.2X Manual Zoom Lens (WT41)
Throw Distance 1.2 - 12m (Mechanical Travel)
Brightness - 3060 ANSI Lumens Typical @ Normal Mode
- 2450 ANSI Lumens minimum @ Normal Mode
Contrast - 1200 : 1 Full White and Black (Minimum)
- 2000 : 1 Full White and Black (Typical)
Uniformity - 70% Japan standard (Minimum)
- 85% Japan standard (Typical)
Temperature Opterating : 5~35oC Storage : -20~60oC
Maximum Humidity Operating : 5~35oC, 80%RH (Max.), non-condensing
Storage : -20~60oC, 80%RH (Max.), non-condensing
Acoustic noise level Typical 35 dB(A) and maximum 37 dB(A) at 23+/- deg C for the full power (300W) mode
Typical 32 dB(A) and maximum 34 dB(A) at 23+/- deg C for the eco (250W) mode
Lamp Life 2000 hours min, 50% survival rate (Full Power Mode)
2500 hours min, 50% survival rate (Eco Mode)
Altitude
Operating : 0~2,500 ft for 5 oC~35oC
2,500~5,000 ft for 5 oC~30oC
5,000~10,000 ft for 5 oC~25oC
Storage : 40,000 ft (Max.)
MTBF Operating more than 12,000 hours (90% Confidence Level)
Resolution 1024(H) x 768(V)
Color Wheel- Four segments: R(92) / G(83) / W(110) / B(75)
- 7200 rpm
DMD Chip - 0.7” 12o LVDS XGA Digital Mirror Device
Chapter 1

Chapter 1 2
System Introduction - PH730
Technical Specification
Item Description
Dimensions (LxWxH) 350 x 282 x 118.75 mm
Weight Approx. 7.7 lbs (3.5 Kg)
Tilt Angle 6 degree with elevator mechanism
Keystone correction +/- 6 Degree
Lamp Door Projection Lamp power supply shut off automatically when door is opened
Power Supply
- Universal AC 100-240V ~ 50-60Hz with PFC input
- 230W for OSRAM E20.5 Lamp @ normal operation
- Variance FAN speed control (Depends on temperature variant)
Projection Lens f=22.25mm~26.69mm, F/2.5~2.8, 1.2X Manual Zoom Lens (YM10-M)
Throw Distance 1.5 - 10m (Mechanical Travel)
Brightness - 1020 ANSI Lumens -- Typical
- 820 ANSI Lumens -- Engineering Minimum
Contrast - 2500 : 1 Full White and Black -- Typical
- 1500 : 1 Full White and Black -- Engineering Minimum
Uniformity - 75% Japan standard (Minimum)
- 85% Japan standard (Typical)
Temperature Opterating : 5~35oC Storage : -20~60oC
Maximum Humidity Operating : 5~35oC, 80%RH (Max.), non-condensing
Storage : -20~60oC, 80%RH (Max.), non-condensing
Acoustic noise level Typical 32 dB(A) & maximum 34 dB(A) at 23+/-2 deg C for the full power (230W) mode
Typical 29 dB(A) & maximum 31 dB(A) at 23+/-2 deg C for the eco (180W) mode
Lamp Life 2000 hours min, 50% survival rate (Full Power Mode)
4000 hours min, 50% survival rate (Eco Mode)
Altitude
Operating : 0~2,500 ft for 5 oC~35oC
2,500~5,000 ft for 5 oC~30oC
5,000~10,000 ft for 5 oC~25oC
Storage : 40,000 ft (Max.)
MTBF Operating more than 12,000 hours (90% Confidence Level)
Resolution 1280(H) x 768(V)
Color Wheel - Seven segments: B(47) / R(62) / G(56) / W(30) / B(47) / R(62) / G(56)
- 7200 rpm
DMD Chip - 0.65” LVDS WXGA Digital Mirror Device

3 Chapter 1
Product Overview
Main Unit
Item Description
1 Focus Ring / Zoom Ring
2 Zoom Lens
3 Elevator Button
4 Remote Control Receiver
5 Lens Cap Switch
6 Elevator Foot
7 Connection Ports
8 Power Socket
9 Control Panel
10 Detachable cable holder

Chapter 1 4
Control Panel
Item Description
1 Temp Indicator LED
2 Lamp Indicator LED
3 Power and Indicator LED (Power LED)
4 Source
5 Resync
6 Empowering Key
7 Menu
8 Back
9 Four Directional Select Keys (Keystone)

5 Chapter 1
Connection Ports
Item Description
1 USB Connector
2 HDMI Connector
3 DVI Input Connector
4 VGA Input Connector (PC Analog Signal)
5 Component Video Input Connector
6 S-Video Input Connector
7RS232 Connector
8 KensingtonTM Lock Port
9 Power Socket
10 VGA Output Connector (Monitor Loop-through Output Connector)
11 Audio Input Connector
12 Composite Video Input Connector

Chapter 1 6
Item Description
1 Power Cord
2 VGA Cable
3 Composite Video Cable
4 USB Cable
5 HDMI Cable (Optional Accessory)
6 S-Video Cable
7 Audio Cable Jack / Jack or Audio Cable Jack / RCA
8 DVI Cable (Optional Accessory)
9 3 RCA Component Cable
10 RS232 Cable (Optional Accessory)
Connecting the Projector

LVDS DMD
I/F
DAD1000
reset ASIC
DC-DC
VGA
Video
13V 1.5V
2.5V
3.3V
3.3V ANALOG
Ballast
uP8051
FANs
POWER
SUPPLIES
DDP3020
ASIC
30
8
Keypad
IR Remote
USB
FLASH BOOT/
EEPROM RLDRAM
CLOCK
GENERATION
CW
DRIVER
CW index
CW Motor
ballast control
RS232
Video
Decoder
ADC
DVI/HDMI
PORT1PORT2PORT3
1.8V
5V
WIRELESS I/F
5V
3.3V
THERMAL SENSER

Chapter2 8
Chapter 2
Firmware Upgrade
Item Photo Item Photo
Projector
(PD726 &
PH730)
USB Cable
Power Cord PC or Lap-
top
Equipment Needed
Software : (DDP 3020- USB)
- DLP Composer Lite (6.0)
- Firmware (PD726 & PH730)
Hardware :

9 Chapter 2
No Step Procedure Photo
1 Execute
FW pro-
gram
Choose
“DLP Composer Lite
v6.0 Setup” program.
2 Next Click “Next” button.
3 Next 1. Reading the “License
Agreement” rules.
2. Choose “I accept and
agree to be bound by
all the terms and
conditions of this
License Agreement”
icon.
3. Click “Next” button.
4 Next Click “Next” button.
Installation Procedure
DLP Composer Lite Setup Procedure

Chapter2 10
No Step Procedure Photo
5 Next 1. Choose “All” icon.
2. Click “Next” button.
6 Next Click “Next” button.
7 Process-
ing
The program is execut-
ing “Initializing” status.

11 Chapter 2
No Step Procedure Photo
1 Set-up 1. Hold on “Menu” button
and plug in Power
Cord while holding on
“Menu”.
2. Wait for about 5 secs.
3. Once Power, Lamp,
Temp LED lights up,
then, plug in USB
Cable into the
Projector.
(Note: The system fan
will operate in full speed.
The light will not function
as well.)
2 Execute
Program
Execute the C:\Program
files\DLP Composer
6.0\usbupdata.cmd
(Note: The “DLP Com-
poser” program must be
closed first.)
3 Type any
key to
continue
Press any key to contin-
ue. Then, wait for about
1 minute.
USB Driver Upgrade Procedure

Chapter2 12
No Step Procedure Photo
4 Update
Success-
fully
In 1 minute, click “OK”.
The USB driver is up-
dated successfully.
5 Device
Manager
1. Right click “My
computer” on the
desktop.
2. Select “Properties”
on the popup menu
to launch the “System
Properties” window.
3. Choose “Hardware”
and then click “Device
Manager”.
6Ensure
“DDP3020”
& “Win-
Driver” are
properly
installed
Click “Jungo” to ensure
“Texas Instruments
DLPTM Processor”, then,
click “General” and
check if the Location is
“DDP3020” or not. Also,
“Windriver” are properly
installed. If not, repeart
Step 1~5.
Device Manager

13 Chapter 2
Firmware Upgrade Procedure
1
2
No Step Procedure Photo
1 Set-up 1. Hold on “Menu” button and
plug in Power Cord while
holding on “Menu”.
2. Wait for about 5 secs.
3. Once Power, Lamp, Temp
LED lights up, plug in USB
Cable into the Projector.
(Note: The system fan will be
operated in full speed. The
light will not function as well.)
2 Set-up Link PC USB and pro-
jector
3 Execute the “DLP
Compose(TM) Lite 6.0”.
4Click “Edit” and “Prefer-
ences”.
51. Click “Library”.
2. The library path in
the default installation
directory is
C:\Program Files\DLP
Composer Lite 6.0
If not, press “Browse” to
select the right path.
61. Select “Edit\Prefer
ences\Communi
cations” and choose
“USB”.
2. Click “OK”. 1USB
2OK
Vendor: 0x451
Product: 0x2000

Chapter2 14
No Step Procedure Photo
71. Choose “Flash
Loader”
2. Click “Browse” to
search the firmware
file. (PD726 / PD730)
3. Select the item “Skip
Boot Loader Area
(load all but the first
64KB).”
4. Click “Reset Bus” to
erase the flash
memory.
(Note: If the error mes-
sage “cannot open USB
driver - No projectors
found” appears, please
unplug the USB Cable
and replug, then check
Driver. Finally, re-do
4. Click “Reset Bus” to
erase the flash memory.)
81. If the firmware is
ready, click “Start
Download” to process
the firmware upgrade.
2. Click “Yes” to erase
the flash memory.
Note:
1
2
3
4
1
2