Acer K10 Schematic

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Page 1

Acer K10

Service Manual

100%

Recycled Paper

Date:2008/12/31

K10

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Update History

2008/12/31 First edition completed

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III

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■ Safety Instructions

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Conventions

The following conventions are used in this manual

Screen Messages

Denote

actual

messages

that

appear on screen.

Note

Give bits and

pieces

of add

itional

information

relatedtohe

current topic.

Warning

Alert

you any damage

thatmi

ght result form doing or not

doing

specific

actions.

Caution

Give precautionary measures to avoid possible hardware or software problems.

Important

Remi

nd you doing

specific

actions

relevant

the

accomplishment

of procedures.

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Contents

1 System Introduction ................................ ................................ ................................ ................1

1.1 Technical Specification

................................ ................................ ................................1

1.2 System Block Diagram................................ ................................ ................................ .4

2 Firmware Upgraded Flow ................................ ................................ ................................ .......5

2.1 Check FW version ................................ ................................................................ ........5

2.2 Setup Tool/Equipment ................................ ................................ ................................ .5

2.3 Upgrading Procedure ................................ ................................ ...................................5

3 Machine Disassembly and Replacement

................................ ................................ ..........10

3.1 Tools................................ ................................ ................................ ............................. 10

3.2 Disassembly Procedure................................ ............................................................. 10

3.3 Mechanical Drawing

................................ ................................ ..................................16

4 Troubleshooting and Verifying the Repair ................................ ................................ .........17

4.1 Troubleshooting ................................ ................................ ................................ ........17

4.2

Verifying the Repair................................ ................................ ................................ ....23

Connector Information ................................ ................................ ................................ .........26

5.1 Main Board

................................ ................................ .................................................26

5.2 LED Drive Board

................................ ................................ ........................................27

Appendix A: Measurement method and Formula ................................ ...........................................28

1. Bightness measurement ................................ ................................ ................................ .28

2. Light uniformity measurement(JBMA) ................................ ................................ ...........28

3. Light Uniformity(Dark Corner) ................................ ................................ ........................28

4. Contrast measurement(JBMA) ................................ ................................ ......................29

5. TV DISTORTION................................ ................................ ................................ .............29

Appendix B: Computer Compatibility................................ ................................ .........................30

Appendix C: Video Compatibility ................................ ................................ ............................... 30

Appendix D: Spare Parts list................................................................ ................................ .......31

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1 System Introduction

1.1 Technical Specification

⊙ Display Type

DLP Single Panel Projector

⊙ Panel

Type Y 0.45” DMD

*Model NO. *Size

0.45 inch (single panels) *Driver Type

DDP 2230

*Pixels (Resolution)

858 x 600

*Pixel Failure (follow TI spec.)

As shown below, based on “Image Quality Specification” announced by TI. The attachment is a tentative.

⊙ Projection lens

*Fixed focus *F/No *Focal length *Offset *MTF *Lateral color

at all field for any two wavelength

image size

F2 (Design value)

17.67 mm

100%+/-5%

>50% @47lp/mm (typical) <7 µm

30” @ 1.2 m

*Distortion

TV Distortion < 2.5 %

(Definition and measuring method see Appendix 3)

⊙ Light source

LED module, PT39, Luminus

⊙ Optical system

RTIR System

⊙ Brightness

*Bright mode (Default)

90 lumen (typical) , 80 lumens(min)

⊙ Contrast Ratio(JBMIA)

800:1(typical),600:1 (minimum)

⊙ Optical Compensation

Lens Array

⊙ Light Uniformity(JBMIA)

80%(typical), 75%(minimum)

⊙ Color uniformity(White)

White |dxy|<=0.02

⊙ Throw ratio

1.97(@4:3)

⊙ Focus range

0.6 ~ 2.4 Meter (see Projection Diagram)

⊙ Screen size

15 ~ 60 inches (see Projection Diagram)

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⊙ Sound Noise

@ 25% overlapping 25 degree C: 32dBA; (typical) @ 50% overlapping 25 degree C: 35dBA (typical)

⊙ Color system

24 bits

⊙ PC Compatibility

*Horizontal frequency *Vertical frequency *Pixel Rate

15 ~ 100 KHz 43 ~ 85 Hz

13 ~ 170MHz

⊙ Digital Keystone Correction

Vertical: +/- 20 degree

⊙ Other Key Feature

3:2 Pull Down Progressive Scan Auto Source Detection ARC (aspect ratio correction) 1:1/4:3/16:9 Auto Tracking/Sync. Metal –Plastic Body

⊙ Analog RGB Input

Analog: 0.7 Vp-p / 75Ω Color Level: 0.7 Vp-p / 75Ω Separate: TTL Voltage Level

1.8 Vrms / 10 KΩ

⊙ Video Input

NTSC-M, 4.43 PAL-M, N, B, D, G, H, I SECAM

⊙ I/O Connectors

15 pins D-type Female connector x1 Composite input x1

⊙ OSD Language

Chinese(Tradition), Chinese(Simply), English, French, German, Spanish, Italian, Portuguese, Nederland, Japanese, Korean, Red means non-standard,

⊙ Storage Temperature

-20 ~ 60˚C

⊙ Operation Temperature

5 ~ 35˚C

⊙ Operation Humidity

35 ~ 85%

⊙ Power Requirement

100 ~ 240 V, 50 ~ 60 Hz

⊙ Power Consumption

, < 90 W Standby mode: < 1W ; Green power

⊙ Dimension & Weight

*W x D x H

50mm(H) x 125mm(W) x 120mm(D)

*Weight

550g

⊙ Accessory

TBD

⊙ Regulatory

UL 60950-1 1st Edition: 2003, FCC 47 CFR Part 15 Subpart C Class-B

ANSI C63.4:2003 Industry Canada ICES -003 4th Edition Class B <Europe>

EN55022: 1998+A1: 2000+A2: 2003 Class -B,

EN60950-1:2001/ IEC 60950-1:2001 (+National deviations) EN61000-3-2 edition 2: 2000 EN61000-3-3: 1995+A1: 2001

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EN55024: 1998+A1: 2001+A2: 2003

- IEC 61000 -4-2:1995+A1:1998+A2:2001

- IEC 61000 -4-3:2002+A1:2002

- IEC 61000 -4-4:1995+A1:2001+A2:2001

- IEC 61000 -4-5:1995+A1:2001

- IEC 61000 -4-6:2004

- IEC 61000 -4-8:1993+A1:2001

- IEC 61000 -4-11:1994+A1:2001

<China>

CCC

GB4943-2001, GB9254 -1998 Class-B, GB17625.1 -2003 <Others>

PSE, EK

<Environment -related> Lead-free soldering (including PCB mark ing), RoHS, WEEE, Vermont's Labeling Law for lamp containing Mercury

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1.2 System Block Diagram

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2 Firmware Upgraded Flow

This chapter provides the information regarding relevant equipments and upgrading procedure

for firmware upgrade.

Note:

Please check the firmware and composer version before any firmware upgrade procedures. During firmware download period, please do not shut down PC or projector, this will cause flash memory’s damage. And need to return the unit to manufacturer for flash memory recovery.

2.1 Check FW version

How to check the firmware version? Please press the button of Power, press “-“ twice, at last press Menu. You will access the engineering mode and read the firmware version as below.(This firmware version is just for reference.)

2.2 Setup Tool/Equipment

1. Computer

2. USB Burning Cable (See the picture)

3. Power Cord and AC Adaptor

2.3 Upgrading Procedure

Installing [DLP Composer (TM) Lite]

1. Double-click [DLP Composer Lite v7.1 Setup.exe].

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2. Installation starts. Click [Next] to continue the installa tion process.

3. On the [License Agreement] screen, move the scroll bar on the right to the bottom, select [I accept and agree to be bound by all the term s and conditions of this

License Agreement], and click Next to continue the installa tion process.

4. On the Select [Installation Type] screen, select [ALL] and click [Next] to continue the installation process.

5. When the installation is finished, click [Finish] and reboot the PC. (A shortcut to DLP Composer(TM) Lite is created on the desktop.)

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USB Support - Installation (All Platforms)

This release includes support for a USB communications interface to DDP2000-based projectors. The setup program includes the files needed to install USB support (for Windows 98/Me/2000/XP only ---Win95 and WinNT are not supported). After DLP Composer™ Lite is installed, to install the USB support, choose the "Install DDP2000 USB Driver" icon under "DLP Composer™ Lite" in your Start menu.

Follow the instruction on the screen to press any key and wait for the installation done.

And copy the file “FlashDeviceParameters.txt” into the C: \ Program Files\ DLP Composer Lite X.X

Operating procedure

1. Connect the Projector and PC via USB cable.

2. Double-click [DLP Composer (TM) Lite]. The following screen will appear.

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3. Select [Edit]/[Preferences]/[Communications] to check USB in [Projector Interface].

4. Click [USB Device Identification].

5. Set the items on the [Vendor 0x451, Product 0x2000 ].

6. Click [OK].

7. Move the cursor to [Flash Loader] on the Project window of [DLP Composer Lite]. (The [Flash Loader] screen will appear.)

8. Click [Browse] and select where the firmware [xxxxxxxxx.img] is for download.

9. Make sure [Skip Boot Loader Area] is with a check.

10. Press Menu and Power buttons cons tantly within ten seconds after insert the USB Burning Cable and power Cord. Power LED will start flashing. That indicates the projector is in the download mode. At this moment, you can release these two buttons.

11. Click [Start Download]. When the dialog box is di splayed, click [Yes].

Put checkmark next to [Skip Boot Loader Area]，VALUE SETTING

32KB.

Click [Browse] and select [*.img]

Click [Start Download]

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12. Wait for the Completion of Burning and then remove Power Co rd and Burning Cable.

Click [Yes(是)]

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3 Machine Disassembly and Replacement

3.1 Tools Item

Photo

Long Nose Nipper

Nipper

Screw Bit(+):2*5*40 Screw Bit(+):2*4*60

Anti-static wrist strap

Anti-static wrist gloves

3.2 Disassembly Procedure Warning

 Put on the Static Electricity Ring when starting for repair.  Repair Environment suggest in Clean-room class 10000. Do not remove Optical

Engine or DMD panel outside the clean room.  While screwing or unscrewing screws, please keep the screwdriver straight.

Keeping screwdriver inclined will damage the screw holes.

 Please turn off the power before replacing any parts.

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Step

Figure

Description

1. Press the power button to shutdown the projector and disconnect the power cord.

2. Flip the projector and remove the lens cover.

1. Loosen screws J82035-2510-00*2 as shown.

2. Loosen the screws J1635-3673-00*4.

Raise the top cover gently and disconnect the keypad FFC between the top cover and mainboard.

J82035-2510-00*2

J1635-3673-00*4

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Loosen the four screws J1635-2901-00*4 to remove the keypad .

Remove the Lens Cover and Lens Ring gently.

Loosen the four screws J1635-A074-00*4 for moving Bottom Cover.

P.1

1. Unplug the LED Drive Board from Main Board.

2. Remove all LED Wires.

J1635-2901-00*4

Lens Ring

Lens Cover

J1635-A074-00*4

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P.2

Loosen the two screws

J1635-A074-00*2 on LED Drive Board to remove the Drive Board Heat sink.

1. Unplug Photo Sensor Wire and Fan Wire from the Main Board.

2. Loosen the three screws J1635-A074-00*3.

3. Remove Main Board.

J1635-A074-00*3

J1635-A074-00*2

Photo Sensor Wire

Fan Wire

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1. Loosen the screw J1635-3172-00 to remove the Photo Sensor Board.

2. Unplug the three LED

Wires.

Loosen screws J1635-2021-00*4 for raising the DMD Board and DMD Heat sink.

Loosen the two screws J1635-2290-00*2 to remove the Focus-ring.

J1635-3172-00

LED Wires

Long

Short

J1635-2021-00*4

J1635-2290-00*2

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Loosen the four screws J1635-2250-00*4 to remove the Lens.

Loosen the three screws J1635-2021-00*3 to remove the DC Fan.

Loosen the screws J1635-2021-00*4 and J1635-2250-00*2 to remove the heat sink.

Note

Note: When assembling the heat sink, please take the LED Thermal Pad protection film off firstly.

J1635-2250-00*4

RGB

J1635-2021-00*4

Thermal Pad protection film

J1635-2021-00*3

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3.3 Mechanical Drawing

1. Top Cover

2. Lens Ring

3. Lens Cover

4. DMD Heatsink

5. DMD Board

6. Optical Engine

7. LED Heatsink

8. LED Drive Board

9. Drive_Board Heatsink

10. Main Board

11. Bottom Cover

12. Foot Screw

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4 Troubleshooting and Verifying the Repair

This chapter provides technicians and people who have an electronic backg round a primary description about maintaining the product. Moreover, you can get the appropriate operation to solve some complicated problems of component repairing and professional problems.

4.1 Troubleshooting Warning:

Do not directly look into the lens to avo id eyesight damages. The projector is equipped with ventilation holes (intake) and ventilation holes (exhaust). Do

not block or place anything near these slots. Or internal heat build-up may cause picture degradation or damaging the projector.

Confirm Software and hardware

(1) Confirm FW version (refer to Engineering Mode) . (2) Confirm LED indicator.

(3) Confirm cable connec tion well.

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Power Source Troubleshooting

OKNGOK

No P o w er Source after tu rning on

Check AC

socket and

connector

Check LED and keypad

FPC

Check

Mainboard

and power

cable

Replace

Mainboard

Replace AC

socket

Replace

keypad PFC

Replace

power cable

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Fan Failure Troubleshooting

NGNGOKOKNG

Fan failure

after turning

Check Fan

connection

Check Fan

Check

Mainboard

Reconnect

fan

Replace fan

Replace

Mainboard

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Video Signal and VGA Signal Troubleshooting

NGOKNGOKNG

Video No

Signal

Check

Source

Turn on

source

Check

Cable

Replace

Cable

Check

Main BOard

Replace

Main Board

NGOKNGOKNG

Computer

No Signal

Check

Source

Check

Cable

Check

Main Board

Turn on

source

Replace

Cable

Replace

Main Board

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NGOKNGOKNG

Image

abnormal

Power on

again and

reset OSD

Check input

cable and

signal setting

Check

Mainboard

Check

Optical

engine

Adjust Input

Signal

Replace

Mainboard

Replace

Optical engine

NGNGOKOKNG

Color

abnormal

Check input cable

and

signal setting

Check

Mainboard

Check

Optical

engine

Adjust Input

Signal

Replace

Mainboard

Replace

Optical engine

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Operation Function Troubleshooting

Button Failure

Check

Keypad and

FFC

Check

Mainboard

Replace

Keypad and

FFC

Replace

Mainboard

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4.2

Verifying the Repair

After repairing projector (Dissembling and assembling projector), Repair center should verify the quality of repaired unit. Here is a general guide for all repaired model. That means if the projector is without S-Video port, repair center can skip the portion of S-Video verification.

(1) Signal test (Each I/O can function normally)

Connect all connector to the jacks one a fter the other to check whether each channel can project normally.

I/O port

Monitor In (VGA) Test Equipment

Standard Pattern generator (Ex. Quantum data)

Signal format

800*600 60Hz

I/O port

Video Test Equipment

Standard Pattern generator (Ex. Quantum da ta) or DVD player

Signal format

NTSC

I/O port

S-Video Test Equipment

Standard Pattern generator or DVD player

Signal format

480i

I/O port

Audio input Test Equipment

Connect audio input to audio output of DVD player

Signal format

480i

(2) Operation test Buttons operation

Button description

Test criteria

Power button

1. Mechanical motion (Up & Down) should be free from getting stuck when pressing the Power button.

2. Press “power” button and projector will switch on.

1. Mechanical motion (Up & Down) should be free from getting stuck when pressing the Menu button.

2. Press Menu button can make projector function normally.

4-way button (Keystone/Auto/Source)

1. Mechanical motion (Up & Down) should be free from getting stuck when pressing the 4-way button.

2. Press 4-way button can make projector function normally.

Focus ring

Ring

Test criteria

Focus ring

The feeling of rotating Focus ring to the end of right and le ft by hand should free from seizing.

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(3) Image Quality

Projected image size: 25 inches (diagonal length). Zoom ring: Adjust zoom ring to wide (Maximum projection size).

VGA

I/O port

Monitor In (VGA)

Test Equipment

Standard Pattern generator (Ex. Quantum da ta)

Signal format

800*600 60Hz

Projected image size

25” in diagonal length

Test Pattern

Test criteria

ANSI Brightness

Apparent color strip, bend and streak corner on the projected image are not allowable.

Extreme Gray-Scale

--0 represents full black, 255 represents full white.

--Distinguishing the gray from black at the value of 32 and the gray from white at the value of 239 easily are acceptable.

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Circular Geometry, Cross hatch

and Dots

1. The four lines of outer frame should not only be existent but also distinguishable.

2. The dots in the square should be distinguishable.

Scaled Text

1. Rotate Zoom ring to wide mode (Maximum projected image)

2. Fix projector to set diagonal length of projected image to 60”.

3. Adjust focus ring to make resolution of 4 corners and center are balanced.

4. Check the characters should be recognized easily.

5. Rotate Zoom ring to tele mode (Minimum projected image)

6. Adjust focus ring to make resolution of 4 corners and center are balanced.

7. Check the characters should be recognized easily.

INFOCOMM SMPTE 133

1. The intervals of center thin white and black bars should be distinct.

2. The squares around the small circle in the center show the transition of full white to full black.

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Video

I/O port

Video

Test Equipment

Standard Pattern generator (Ex. Quantum data)&DVD player

Criteria

No apparent color deviation on the projected image

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.

5.1 Main Board

Connector

Description

CN1

FFC Cable ( to keypad) J1

DMD Board J5

LED Drive Board J9

Fan J10

Photo sensor

J 10

CN1

J 1

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5.2 LED Drive Board

Connector

Description

LED-R J3

LED-B J4

LED-G

J4: G

J3: B

J2: R

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Appendix A: Measurement method and Formula

Equipment : Chroma 7600 Video Pattern Generator values

Set projection diagram to wide size, 25 ” inches diagonal image

1. Bightness measurement

Measure the incident light at th e ANSI nine points of the screen with the illuminometer placed in the plane of the focused image on normal white condition. Calculation is according to ANSI standard (for 60” diagonal projection area case) Test Pattern: Full White Test Pattern

Formula : Average( L1+L2+…+L9) (Projection Area) = (L1+L2+…+L9)/9 0.508m x 0.381m

L1, L2, …., L9 : the lx reading of ANSI 9 points

ANSI Test point definition

2. Light uniformity measurement(JBMA)

Test Pattern: Full White Test Pattern Formula : JBMA uniformity = Average (L1,L3,L7,L9 )/L5 L1,L2,…,L9 : the lx reading of 9 ANSI points

3. Light Uniformity(Dark Corner)

Test Pattern: Full White Test Pattern Formula:

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 

%100))L9L8,L7,L6,L5,L4,3,L2,,1(geL11)/Avera(Min(L10,)_(  LLcornerDarkUniformityLight

L1, L2,…,L9, L10, L11: the lx reading of 13 ANSI points

4. Contrast measurement(JBMA)

First measure the light output of nature white pattern of ANSI nine points. Second,

measure the dark pattern as the same way. And calculate the ratio of them.

Test Pattern: Full White and Full Dark Test Pattern Formula: Average(L1,L2,L3,L4,L5,L6,L7,L8,L9) of NW : Average(L1,L2,L3,L4,L5,L6,L7,L8,L9) of Dark = NW(L1+L2+L3+L4+L5+L6+L7+L8+L9)/9 : Dark(L1+L2+L3+L4+L5+L6+L7+L8+L9)/9

5. TV DISTORTION

Unit: % Brightness: Default Contrast: Default Measurement procedure (Projection Size 30 inch):

Measure the dimensions H1, H2 and H3, with H3 at the half image width, as shown above for both zoom settings. For each the distortion is defined as:

VERTICAL

%100*1

 



 





distTV

%100*1

 



 





distTV

Measure the dimensions W1, W2 and W 3 at the half image height, as shown above. The distortion is defined as:

HORIZONTAL

%100*1

 



 





distTV

%100*1

 



 





distTV

All should be within the absolute specification tolerance.

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Appendix B: Computer Compatibility

Mode

Resolution

Vertical Frequency (Hz)

Horizontal Frequency

(kHz)

59.940 Hz

31.469 kHz

72.809 Hz

37.861 kHz

75.000 Hz

37.500 kHz

VGA

640 x 480

85.008 Hz

43.269 kHz

56.250 Hz

35.156 kHz

60.317 Hz

37.879 kHz

72.188 Hz

48.077 kHz

75.000 Hz

46.875 kHz

SVGA

800 x 600

85.061 Hz

53.674 kHz

60.004 Hz

48.363 kHz

70.069 Hz

56.476 kHz

75.029 Hz

60.023 kHz

XGA

1024 x 768

84.997 Hz

68.677 kHz

75.000 Hz

67.500 kHz

1152 x 864

60.000 Hz

60.000 kHz

1280 x 960

1280 x 1024

60.020 Hz

63.981 kHz

84.88 Hz

71.55 kHz

74.88 Hz

62.75 kHz

SXGA

1280 x 800

59.8 Hz

49.7 kHz

Appendix C: Video Compatibility

NTSC-M, NTSC-4.43

．PAL-M,N,B,D,G,H,I ．SECAM

Signal

Horizontal Frequency (kHz)

Vertical Frequency (Hz)

480i

15.8 kHz

60 Hz

480p

31.5 kHz

60 Hz

576i

15.6 kHz

50 Hz

576p

31.3 kHz

50 Hz

720p

45.0 kHz

60 Hz

720p

37.5 kHz

50 Hz

1080i

33.8 kHz

60 Hz

1080i

28.1 kHz

50 Hz

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Appendix D: Spare Parts list

Introduct ion

This section is a list of all the FRU removal. Following the FRU table of contents is an enlarged view of the entire projector, which shows the primary FRUs in the projector.

When working on the projector, use appropriate anti -static precautions such as anti -static mats, wrist straps and grounded work surfaces.

Failure to do this can de stroy static-sensitive components and make the product inoperable.

Acer K10 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual