Acer P3250, P3150 User Manual 2

SERVICE MANUAL

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Date Revise Version Description

2008.4.10 V1.0 Initial Issue

2008.5.28 V2.0 Add Marketing Spec in Chapter 1

2008.7.22 V3.0 Add P3150 Refresh/P3250 Refresh

2008.10.10 V4.0

2010.02.26 V5.0 Add P3251

Copyright Feb.2010 All Rights Reserved P/N: 36.89K01G001

Add Waveform Download in Ch5

modify Ch4, Ch6 and AppendixB

Prepared: Checked: Approved:

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

Comparison List

PART P3251 P3150 P3150 refresh P3250 P3250 refresh

FAN 49.8FN01G001 49.89S01G001

ENGINE 70.8GC07GR01 70.89Y22GR01

PHOTO SENSOR BD 80.8GB04G001 80.88N04G001

COLOR WHEEL 70.8GC08GR01 70.89Y21GR01

DMD BD 80.8FN02G001 80.89S02G001

DMD CHIP 48.8CQ01G003 48.87K01G001 48.87M01G001

BALLAST 70.8GC09GR01 70.89Y27GR01

SPEAKER 49.8GC01G001 49.89Y01G001

MAIN BD 70.8GC10GR01 70.89Y23GR01 70.89Y33GR01 70.89Y29GR01 70.89Y33GR01

DAUGHTER BD 80.8GB06G001 NA

FRONT COVER 70.8GC11GR01 70.89Y24GR01

FFC CABLE 42.00300G001 42.89501G002

KEYPAD BD 80.8GB03G001 80.89Y03G001

TOP COVER 70.8GC12GR01 70.89Y25GR01 70.89Y30GR01

BOTTOM COVER 70.8GC13GR01 70.89Y26GR01

IR SENSOR BD 80.8GB05G001 80.89S05G001

I

Preface

This manual is applied to P3150/P3250/P3150 refresh/P3250 refresh/P3251 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 is not mentioned in the troubleshooting.

Notice:
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.

P3150/P3250/P3150 refresh/P3250 refresh/P3251 Service Manual

Copyright Feb.2010

All Rights Reserved

Manual Version 5.0

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

II

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

Table of Content

Chapter 1 Introduction

Highlight 1-1

Compatible Mode 1-4

Product Overview 1-6

Chapter 2 Disassembly Process

Equipment Needed & Product Overview 2-1

Disassemble Lamp Cover Module 2-2

Disassemble Lamp Module 2-3

Disassemble Top Cover Module 2-4

Disassemble Key Pad Board Module 2-5

Disassemble Zoom Ring Module 2-5

Disassemble Main Board Module 2-6

Disassemble Color Wheel Module 2-8

Disassemble Front Cover Module 2-9

Disassemble Ballast Module 2-10

Disassemble DC-DC Module 2-11

Disassemble Thermal Switch Module 2-12

Disassemble Lamp Blower and System Fan Module 2-13

Disassemble Lamp to Ballast Cable 2-14

Disassemble Engine Module 2-15

Disassemble DMD Board and DMD Ship 2-15

Disassemble Speaker Module 2-16

Disassemble Interrupt Switch Module 2-16

Disassemble IR Sensor Module 2-17

Rod Adjustment 2-18

III

Re-write Lamp Usage Hour 2-19

Assemble IR Sensor Module 2-20

Assemble Interrupt Switch Module 2-20

Assemble Speaker Module 2-21

Assemble DMD Board and DMD Chip Module 2-22

Assemble Engine Module 2-22

Assemble Lamp to Ballast Module 2-23

Assemble Lamp Blower and System Fan Module 2-24

Assemble Thermal Switch Module 2-25

Assemble DC-DC Module 2-26

Assemble Ballastl Module 2-27

Assemble Front Cover Module 2-28

Assemble Color Wheel Module 2-29

Assemble Main Board Module 2-30

Assemble Zoom Ring Module 2-31

Assemble Key Pad Board Module 2-32

Assemble Top Cover Module 2-33

Assemble Lamp Module 2-34

Assemble Lamp Cover Module 2-35

Chapter 3 Troubleshooting
LED Lighting Message 3-1

Main Procedure 3-3

Beep Sound 3-4

Chapter 4 Function Test & Alignment Procedure
Test Equipment Needed 4-1

Service Mode 4-1

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

IV

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

OSD Reset 4-1

Test Condition 4-2

Test Inspection Procedure 4-4

PC Mode 4-4

Video Performance 4-7

Optical Performance Measure 4-9

SD Card /USB Test (only for P3251) 4-11

Other 4-12

Chapter 5 Firmware Upgrade

Section 1: System Firmware Updategrade 5-1

Equipment Needed 5-1

DLP Composer Lite Setup Procedure 5-2

USB Driver Upgrade Procedure 5-4

Firmware Upgrade Procedure 5-5

Section 2 : Waveform Download 5-9

Waveform Download ( for refresh models) 5-9

Waveform Download ( for P3251) 5-10

Section 3 : Multi-Media Firmware Upgrade(only for P3251) 5-11

Equipment Needed 5-11

USB Driver Upgrade Procedure 5-12

Multi-Media Firmware Upgrade Procedure 5-14

V

Chapter 6 EDID Upgrade

EDID Introduction 6-1

Equipment Needed 6-2

Setup Procedure 6-3

EDID Key-In Procedure 6-3

Setup Procedure (HDMI) 6-7

Default Language Reset 6-9

Appendix A P3150/P3250 Exploaded Overview I

Appendix B Serial Number System Denition I

PCBA Code Denition II

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

VI

Chapter 1

Introduction

1-1 Highlight

No Item Description

- 209 x 74.2 x 172.2 mm (for

1 Dimensions (WxDxH)

2 Weight - 1.24 kg

3 Tilt Angle - 7 degree with elevator mechanism

4 Keystone correction - +/ -40 degree (80 degree)

5 DMD Chip

6 Number of active dots

7 Power Supply

8 Terminal

P3250 Refresh)

- 209 x 64 x 164mm (for P3251)

- TI DMD 0.55” 12° 2xLVDS Type-X SVGA Digital Mirror
Device (for P3150/P3150 refresh)

- TI DMD 0.55” 12° 2xLVDS Type-X XGA Digital Mirror Device
(for P3250/P3250 refresh)

- TI DMD 0.55” 12° 2xLVDS S450 XGA Digital Mirror Device
(for P3251)

- 800(H) x 600(V) (for P3150/P3150 refresh)

- 1024(H) x 768(V) (for P3250/3250 refresh/P3251)

- Universal AC 100 -240 V ~ 50-60 Hz with PFC input

- Variance FAN speed control (Depends on temperature
variant)
For all models:

- HDMI * 1: One HDMI connector for HDMI-Video/audio and
HDMI-Graphic Signal. (HDMI v1.3 for P3251,
HDMI v1.1 for P3250/P3150)HDMI v1.1 for P3250/P3150))

- VGA input ( D-SUB X 1)

- Video input (RCA jack Type X 1, Mini DIN 4-pin S-video X 1)

- Audio input (Phone jack Type X 1)

- USB (Type-B X 1)
Only for P3251:

- SD * 1

- USB (Type-A* 1)

P3150/P3250/P3150 Refresh/

9 Lamp - 165 Watt for OSRAM E17.6 Lamp @ normal operation

10 Projection lens

11 Projection Image Size

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

- F# 2.41 ~2.55, f = 21.79~23.99 mm, 1.10X Mechanical Zoom
Lens

- Adjustable from 22.9” to 302.8” (Diagonal) (for(for

P3150 Refresh/P3250 Refresh)

- Adjustable from 27.5” to 303” (for P3251)(for P3251)

Condential 1-1

P3150/P3250/

No Item Description

12 Throw Distance - 1.0m – 12m

13 Throw Ratio - 1.95 – 2.15:1 @ 60”

- Video Signal RGB (PC)

● Analog RGB 0.7Vp-p, 75 ohm, Separate TTL H,V Sync

● Analog RGB 1Vp-p, 75 ohm, Sync. On Green signal

● Analog RGB 0.7Vp-p, 75 ohm, Composite TTL Sync.

- Video

● Composite video 1Vp-p,75 ohm

● S-video Luminance 0.714Vp-p, 75 ohm

14 Input signal spec

15 Video Compatibility

16 Brightness

● Chrominance 0.286Vp-p, 75 ohm

● Component Video 1Vp-p, 75 ohm
For

P3150/P3250/P3150 Refresh/P3250 Refresh:

- Hsync Frequency 31.5 k ~ 100 kHz

- Vsync Frequency 50 ~ 85 Hz
For P3251:

- Hsync Frequency 30 ~ 100 kHz

- Vsync Frequency 50 ~ 120 Hz

- Standards :

● NTSC (3.58/4.43)

● PAL (B/D/G/H/I/M/N)

● SECAM (B/D/G/K/K1/L)

● HDTV - 480p, 576p, 720p, 1080i (for P3150/3150 refresh)

● HDTV - 480p, 576p, 720p, 1080p (for P3250/P3250 re
fresh)

● HDTV (480i,576i 480p, 576p, 720p, 1080i, 1080p) (for(for
P3251)

P3150/P3250/P3150 refresh/P3250 refresh

- Engineering Spec:

● 1800 ANSI Lumens (Typical Full power mode) 1800 ANSI Lumens (Typical Full power mode)

● 1600 ANSI Lumens (Minimum Full power mode) 1600 ANSI Lumens (Minimum Full power mode)

- Marketing Spec:

● 2000 ANSI Lumens 2000 ANSI Lumens
P3251 Engineering Spec:

- Engineering Spec:

●1890 ANSI Lumens (Typical)

●1680 ANSI Lumens (Minimum)

- Marketing Spec:

● 2100 ANSI Lumens

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-2

No Item Description

P3150/P3250/P3150 refresh/P3250 refresh :

- Engineering Spec:

● 1400 : 1 Full White and Black (Minimum Full power mode) 1400 : 1 Full White and Black (Minimum Full power mode)

● 1800 : 1 Full White and Black (Typical Full power mode) 1800 : 1 Full White and Black (Typical Full power mode)

- Marketing Spec:

17 Contrast

18 Uniformity

19 Color Wheel

20 Operation temperature - 5°C -- 35°C
21 Storage temperature - -20°C -- 60°C

22 Maximum Humidity

23 Lamp life

24 System controller

● 2000 :1 Full White and Black 2000 :1 Full White and Black
P3251 :

- Engineering Spec:

● 2100 : 1 Full White and Black (Minimum Full power mode)

● 3300 : 1 Full White and Black (Typical Full power mode)

- Marketing Spec:

● 3700 :1 Full White and Black
Engineering Spec:

- 65% Japan standard (Minimum Full power mode)

- 80% Japan standard (Typical Full power mode)
Marketing Spec:

- 85% Japan standard

● 6 segments (R90�28G90C28W42B80) (for P3150/P3250/● 6 segments (R90�28G90C28W42B80) (for P3150/P3250/6 segments (R90�28G90C28W42B80) (for P3150/P3250/P3150/P3250/
P3150 refresh/P3250 refresh)

● 6 segments (R81�41G84C31W52B71) (for P3251)● 6 segments (R81�41G84C31W52B71) (for P3251)6 segments (R81�41G84C31W52B71) (for P3251)

- 7200rpm @ 2x

- 9000rpm @ 3x, PAL 50Hz

- Operating: 5°C -- 35°C, 80%RH (Max.), non-condensing

- Storage: -20°C -- 60°C, 80%RH (Max.), non-condensing
P3150/P3250/P3150 refresh/P3250 refresh :

- 3000 hours min, 50% survival rate (Full power Mode)

- 4000 hours min, 50% survival rate (Eco power Mode)
P3251 :

- 3500 hours, 50% survival rate (Full power Mode)

- 5000 hours, 50% survival rate (Eco power Mode)

- TI DDP2230 (for P3150/P3250/P3150 refresh/P3250 refresh)P3150/P3250/P3150 refresh/P3250 refresh)

- TI DDP2431 (for P3251)

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-3

1-2 Compatible Mode

A. Analog (for P3150/P3250/P3150 Refresh/P3250 Refresh)

Compatibility Resolution V-Sync [Hz] H-Sync [KHz]

640x480 60 31.50

VGA

SVGA

XGA

SXGA

QuadVGA

SXGA+ 1400x1050 60 65.32

WXGA

UXGA 1600x1200 60 75.00

Power Mac G4

PowerBook G4

i Mac DV (G3) 1024X768 75 60.00

640x480 72 37.90
640x480 75 37.50
720x400 70 31.50
800x600 56 35.20
800x600 60 37.90
800x600 72 48.10
800x600 75 46.90

832x624 75 49.73
1024x768 60 48.40
1024x768 70 56.50
1024x768 75 60.00
1152x864 70 63.80

1280X1024 60 63.98

1280x960 60 59.70
1280x960 75 75.23

1280x800 60 49.702
1360x768 60 47.72
1440x900 60 55.935

1680x1050 60 65.290

640x480 66.6(67) 34.93

800x600 60 37.90
1024x768 60 48.40
1152x870 75 68.68

1280x1024 60 63.98

640x480 60 31.35

640x480 66.6(67) 34.93

800x600 60 37.90
1024x768 60 48.40
1152x870 75 68.98

1280x1024 60 63.98

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-4

B. Digital (for P3150/P3250/P3150 Refresh/P3250 Refresh)

Compatibility Resolution V-Sync [Hz] H-Sync [KHz]

640x480 60 31.50

640x480 72 37.90

VGA

640x480 75 37.50

720x400 70 31.50

800x600 56 35.20

800x600 60 37.90

SVGA

800x600 72 48.10

800x600 75 46.90

832x624 75 49.73
1024x768 60 48.40

XGA

1024x768 70 56.50
1024x768 75 60.00
1152x864 70 63.80

SXGA

1280X1024 60 63.98

1280x960 60 59.70

QuadVGA

1280x960 75 75.23

SXGA+ 1400x1050 60 65.32

1280x800 60 49.702
1360x768 60 47.72

WXGA

1440x900 60 55.935

1680x1050 60 65.290

UXGA 1600x1200 60 75.00

640x480 66.6(67) 34.93

800x600 60 37.90

Power Mac G4

1024x768 60 48.40
1152x870 75 68.68

1280x1024 60 63.98

640x480 60 31.35

640x480 66.6(67) 34.93

800x600 60 37.90

PowerBook G4

1024x768 60 48.40
1152x870 75 68.68

1280x1024 60 63.98

i Mac DV (G3) 1024X768 75 60.00

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-5

1-3 Product Overview

Projector Outlook (P3150)

Front /Upper side

Item Description Item Description

1 Zoom Lever 6 Elevator button
2 Focus ring 7 Remote control receivers
3 Zoom lens 8 Control panel

4 Elevator foot

5 Lens cap

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-6

Rear side (for P3150/P3250/P3150 Refresh/P3250 Refresh)

Item Description Item Description

1 USB connector 5 S-Video input connector

PC analog signal/HDTV/component

2

video input connector

3 HDMI connector 7 Power socket
4 Composite video input connector 8 KensingtonTM lock port

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

6 Audio input connector

Condential

1-7

Rear side (for P3251)

Item Description Item Description

1 SD Card reader 6 S-Video input connector

2 USB A connector 7 Audio input connector

PC analog signal/HDTV/component

3

video input connector

4 HDMI connector 9 Power socket

5 Composite video input connector 10 KensingtonTM lock port

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

8 USB control connector

Condential

1-8

Control Panel

Item Function Description

1 LAMP Lamp Indicator LED
2 TEMP Temp Indicator LED

3 SOURCE

4 Empowering key Unique Acer functions: eOpening, eView,eTimer.
5 RES�NC Automatically synchronizes the projector to the input source

6 POWER

7 MENU

8 Keystone

9 Four directional select keys

Press “SOURCE” to choose RGB, S-Video,Composite and
HDMI™ sources.

Power/Standby/Power Indicator LED.See the contents in
“Turning the Projector On/Off” section.

• Press “MENU” to launch the Onscreen display (OSD)
menu, back to the previous step for the OSD menu
operation or exit the OSD menu.

• Conrm your selection of items.
Adjusts the image to compensate for distortion caused by

tilting the projector (± 40 degrees).

Use to select items or make adjustments to
your selection.

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-9

Remote Control Layout (for P3150/P3250/P3150 Refresh/P3250 Refresh)

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-10

Item Icon Function Description

1

2 Laser pointer Aim the remote at the viewing screen
3 FREEZE To pause the screen image.

4 HIDE

5 RES�NC Automatically synchronizes the projector to the input source.

6 SOURCE

7 POWER Refer to the “Turning the Projector On/Off” section.

8 ASPECT RATIO To choose the desired aspect ratio (Auto/4:3/16:9).

9 ZOOM Zooms the projector display in or out..

10 Laser button

11

12 KE�STONE

13 MENU

14 PAGE

15 RGB Press “RGB” for true-color optimization.
16 BRIGHTNESS Press “BRIGHTNESS” to adjust the brightness of the image.

17 CONTRAST

18 COLOR Press “COLOR” to adjust the color temperature of image.

19 VGA

20 COMPONENT

21 S-VIDEO To change source to S-Video.
22 VIDEO To change source to COMPOSITE VIDEO.
23 DVI No DVI function.

24 HDMI™ To change source to HDMI™.
25 MUTE To turn on/off the volume.

Infrared
transmitter

Empowering
key

Sends signals to the projector.

Momentarily turns off the video. Press “HIDE” to hide the
image, press again to display the image.

Press “SOURCE” to choose from RGB, Component-p,
Component-i, S-Video, Composite, Video and HDTV sources.

Aim the remote at the viewing screen, press and hold this
button to activate the laser pointer.
This function is not supported in Japanese market.

Unique Acer functions: eOpening, eView, eTimer Managment

Adjusts the image to compensate for distortion caused by
tilting the projector (± 40 degrees).

• Press “MENU” to launch the Onscreen display (OSD)
menu, back to the previous step for the OSD menu
operation or exit the OSD menu.

• Conrm your selection of items.
For computer mode only. Use this button to select the next or

previous page. This function is only available when connected
to a computer via a USB cable.

Use the “CONTRAST” option to control the difference
between the lightest and darkest parts of the picture.

Press “VGA” to change source to the VGA connector. This
connector supports analog RGB, �PbPr (480p/576p/720p/
1080i), �CbCr (480i/576i) and RGBsync.

Press “COMPONENT” to change source to Component video.
This connection supports �PbPr (480p/576p/720p/1080i) and
�CbCr (480i/576i).

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-11

Item Icon Function Description

Press “WIRELESS” to display the image which is wirelessly

26 WIRELESS

27 KeyPad 0~9 Press “0~9” to input a password in the “Security settings”.

Four

28

directional
select keys

transmitted from the PC to the projector via the “Acer
eProjection Management” utility. (for wireless model)

Use up, down, left, right buttons to select items or make
adjustments to your selection.

Remote Control Layout (for P3251)

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-12

Item Icon Function Description

1

2# Laser pointer Aim the remote at the viewing screen

3 FREEZE To pause the screen image.

4 HIDE

5 RES�NC Automatically synchronizes the projector to the input source.

6 SOURCE

7 POWER Refer to the “Turning the Projector On/Off” section.

8 ASPECT RATIO To choose the desired aspect ratio (Auto/4:3/16:9).

9 ZOOM Zooms the projector display in or out..

10# Laser button

11

12 KE�STONE

13 MENU

14 PAGE

15 Pre./Rewind

Infrared
transmitter

Empowering
key

Sends signals to the projector.

Momentarily turns off the video. Press “HIDE” to hide the
image, press again to display the image.

Press “SOURCE” to choose from RGB, Component-p,
Component-i, S-Video, Composite, Video and HDTV sources.

Aim the remote at the viewing screen, press and hold this
button to activate the laser pointer.
This function is not supported in Japanese market.

Unique Acer functions: eOpening, eView, eTimer Managment

Adjusts the image to compensate for distortion caused by
tilting the projector (± 40 degrees).

• Press “MENU” to launch the Onscreen display (OSD)
menu, back to the previous step for the OSD menu
operation or exit the OSD menu.

• Conrm your selection of items.
For computer mode only. Use this button to select the next or

previous page. This function is only available when connected
to a computer via a USB cable.

Press “Pre./Rewind” to go to previous index or press
continuously to rewind the playing media le.

16 Enter/Play/Pause Press “Enter/Play/Pause” to play/pause media le.

17 Next/Fastforward

18 Back/Stop

19 VGA

20 COMPONENT No COMPONENT function.
21 S-VIDEO Press “S-VIDEO” to change source to S-Video.
22 VIDEO Press “VIDEO” to change source to composite video.

23 SD/USB A

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Press “Next/Fast-forward” once to go to next index or press
continuously to fast-forward the playing media le.

Press “Back/Stop” to stop playing media le or go back to
upper data folder.

Press “VGA” to change source to the VGA connector. This
connector supports analog RGB, �PbPr (480p/576p/720p/
1080i), �CbCr (480i/576i) and RGBsync.

Press “SD/USB A” to toggle between SD and USB A sources.
This projector supports various le formats of photo/audio/
video.

Condential

1-13

Item Icon Function Description

24 * HDMI™/DVI Press “HDMI™/DVI” to change source to HDMI™.

25 USB B No USB B function.
26 LAN/WiFi No LAN/WiFi function.
27 KeyPad 0~9 Press “0~9” to input a password in the “Security settings”.

28

Four
directional
select keys

Use up, down, left, right buttons to select items or make
adjustments to your selection.

Note: “#”Japan area is not supported.

“*” No DVI function

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-14

Connecting the Projector

Item Description Item Description

1 Power cord 5 Audio cable Jack/Jack
2 USB cable 6 HDMI cable
3 VGA cable 7 S-Video cable

4 Composite video cable 8 Audio cable Jack/RCA

Note: To ensure the projector works well with your computer,please
makesure the timing of the display mode is compatible with
the projector.

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-15

System Block Diagram

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-16

Bottom Cover Dimension

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

1-17

Chapter 2

Disassembly& Assembly Process

2-1 Equipment Needed & Product Overview

1. Screw Bit (+) :107

2. Hex Sleeves 5mm

3. Long Nose Nipper

4. Screw Bit (+) :102

5. Hex Sleeves 7mm

6. Tweezers

7. P3150/P3250/P3150 refresh/P3250 refresh/P3251 unit

* Before you start: This process is protective level II. Operators should wear electrostatic chains.
* Note: 1. If you need to replace the main board, you have to get into service mode and record the
lamp usage hour. please refer to section 2-21.

2.The disassembly and assembly process for P3150/P3250/P3150 refresh/P3250 refresh/

P3251 is the same. Here, we take P3250 as an example.

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential

2-1

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential 2-2

2-2 Disassemble Lamp

Cover Module

1. Turn over the projector

2. Unscrew 2 screws (as red circle)

3. Disassemble the Lamp Cover Module

2-3 Disassemble Lamp

Module

1. Unscrew 2 screws (as red circle)

2. Disassemble Lamp Module

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential 2-3

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential 2-4

2-4 Disassemble Top Cover

Module

1. Unscrew 5 screws (as red circle)

2. Unscrew 2 Hex screws (as yellow circle)

3. Unplug 1 FPC cable (as red square)

4. Disassemble Top cover

2-5 Disassemble Key Pad

Board Module

1. Unscrew 4 screws (as red circle)

2. Separate Key Pad Button and Key Pad

Board

2-6 Disassemble Zoom Ring

Module

1. Unscrew 3 screws (as yellow circle)

2. Disassemble Zoom Ring Module

3. Release 2 tenons to outward (as red

square)

4. Separate Zoom Ring and Zoom Ring

Holder

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential 2-5

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Condential 2-6

2-7 Disassemble Main Board

Module

1. Tear off 2 Mylars (as red square)

2. Unplug 5 connectors (as green square)

3. Push Main Board Module (as red arrow)

to unplug 1 connector (as yellow square)

4. Unplug 6 connectors (as orange square)