ACER AL1717EE

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Acer AL1717EE Service Guide

Service guide files and updates are available on the CSD web : for more information, Please refer to http: csd.acer.com.tw

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Table of Contents Chapter 1 Monitor Features…………………………………….………. 8

1.1 T e s t C o n d i t i o n s ……………………………………….………… 8 1.2 F e a t u r e s …………………….……………………………….…... 8 1.3 L C D P a n e l S p e c i f i c a t i o n ……………………………………... 9

Chapter 2 O P E R A T I N G I N S T R U CT I O N S …………….………….……...1 5 2 .1 F u n c t i o n N a m e …………………………………………………1 5 2 .2 O S D M e n u D e s c r i p t i o n …..……………………………………1 7 2 .3 O S D C o n t r o l …..………………………………………………...1 8 2 .4 O S D M e n u S c r e e n …..……...…………………………………1 9 2 .5 O S D F u n c t i o n D e f i n i t i o n ……………………………………...2 0 2 .6 P l u g a n d P l a y ……….………………………………………......2 1 2 .7 P o w e r S a v e r ……………………………………………………..2 1 Chapter 3 Mac hine D isassem b l y and A ssem b l y …..…….…… 2 2 3 .1 M a c h i n e D i s a s s e m b l y …………………………………………2 2 3 .2 M a c h i n e A s s e m b l y ……………….…………………………... 2 5 Chapter 4 T roub l eshooting …………………….….…….….……………2 8 4 .1 A b n o r m a l d i s p l a y T r o u b l e s h o o t i n g ……………………….. .2 8 4 .2 A b n o r m a l ( O n / O f f , L C D D i s p l a y , K / B ) T r o u b l e s h o o t i n g ...3 0 4 .3 A b n o r m a l ( B I O S , O S D , O t h e r D i s p l a y ) T r o u b l e s h o o t i n g . .3 1 4 .4 A u d i o A b n o r m a l ………………………….…………………....3 2 Chapter 5 Connec tor I nf orm ation …………...……….………...……3 3 5 .1 F u n c t i o n B l o c k D i a g r a m …………….…………………………3 3 Chapter 6 FR U ( Fiel d R epl ac eab l e U nit) L ist……….……………...3 4

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Monitor Features

1.1 Test Conditions

Item Condition Temperature Normal room temperature (25�2�) Humidity 50�10% AC input voltage 100V�2V, 120�2V, 60Hz / 240�2V, 50Hz Brightness Maximum with OSD setting Contrast Middle with OSD setting Resolution setting 1280 x 1024 @60HZ Color temperature With OSD setting Measuring instrument Topcon luminance colorimeter BM-5A or equivalent Others Before measuring, “Auto Adjust” & “Auto Balance” must be done in

advance 1.2 Features � 17” SXGA TFT LCD Panel � TN Mode Liquid Crystal � D-SUB/ DVI-D Input (Optional) � Audio Function � Support to 75Hz Refresh Rate � Support VESA-DCC 2B plug & play function � Support VESA-DPMS & DVI DMPM Power Management Function � Super Wide Viewing Angle � High Brightness & Contrast Ratio � High Brightness & Contrast Angular Dependent � Fast LC Response Time � Light Weight

Chapter 1 2

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1.3 LCD panel Specification Optical Specifications

The relative measurement methods of optical characteristics are shown in 4.2. The following items should be measured under the test conditions described in 4.1 and stable environment shown in Note (4).

Item Symbol Condition Min. Typ. Max. Unit Note Contrast Ratio CR (300) (400) - - (2), (4)

TR - (2) (7) ms LC Response Time

TF - (8) (18) ms (3)

Luminance of center point L

θx=0°, θY =0° Viewing Normal Angle (180) (280) - cd/

m2 (2), (4)

Luminance (Angular dependent) LR - 1.3 1.7 - (2), (5) Contrast (Angular-dependent) Cm 0.5 0.9 - - (2), (6) Brightness Uniformity Uni. - 1.1 1.3 - (2), (4)

Rx (0.604) (0.634) (0.664) - Red

Ry (0.330) (0.360) (0.390) - Gx (0.251) (0.281) (0.311) -

Green Gy (0.572) (0.602) (0.632) - Bx (0.112) (0.142) (0.172) -

Blue By (0.037) (0.067) (0.097) - Wx (0.283) (0.313) (0.343) -

White Wy (0.299) (0.329) (0.359) - Wx (0.283) (0.313) (0.343) -

White 6500K Wy (0.299) (0.329) (0.359) - Wx (0.269) (0.299) (0.329)

White 7500K Wy (0.285) (0.315) (0.345) Wx (0.253) (0.283) (0.313) -

Color Chromaticity

White 9300K Wy

(0.267) (0.297) (0.327) -

(2)

θx+ 70 80 - Horizontal

θx- 70 80 - θY+ 50 60 -

Viewing Angle

Vertical θY-

CR≥10

50 60 -

Deg. (1),(4)

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Note (1) Definition of Viewing Angle (θx, θy):

Note (2) Definition of Contrast Ratio (CR): The contrast ratio can be calculated by the following expression and figure

below. Contrast Ratio (CR) = L255 / L0 L255: Luminance of gray level 255 L 0: Luminance of gray level 0 CR = CR (5) CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note (5).

Definition of luminance measured points and Brightness Uniformity:

12 o’clock direction θy+ = 90º

6 o’clock θy- = 90º

θx- θx+

θy- θy+

x- y+

y- x+

Normal θx = θy = 0º

θX+ = 90º

θX- = 90º

Active area

Ver

tical

Lin

e N

umbe

r [p

ixel

]

Horizontal Line Number [pixel]

: test point X=1 to 5

5

1 2

3

0 320 640 960 1280

0

256

512

768

1024

X

4

Horizontal Line Number

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Luminance of center point: L=L(5) Brightness Uniformity Measurement points: Five specified points 1-5 Formula: Maximum [L (1), L (2), L (3), L (4), L (5)]/Minimum [L (1), L (2), L (3), L (4),

L (5)]

Note (3) Definition of Response Time (TR, TF):

Note (4) Measurement Setup: The LCD module should be stabilized at given temperature for 20 minutes to avoid abrupt temperature change during measuring. In order to stabilize the luminance, the measurement should be executed after lighting Backlight for 20 minutes in a windless room.

Note (5) Definition of TCO 99 Luminance Uniformity (Angular-dependent) (LR):

100%90%

10%0%

Gray Level 255

Gray Level 0

Gray Level 255

Time

Optical Response

Photometer (TOPCON BM-5A)

Field of View = 2º

500 mm

LCD Module

LCD Panel

Center of the Screen

Light Shield Room (Ambient Luminance < 2lux)

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Luminance is measured at the center measurement position “C” on the LCD panel. The optical axis of the luminance meter shall be aligned with the normal of the panel surface. The measuring distance between the photometer and the surface of the panel is defined as:

Md (cm) = diagonal of the panel (cm) X 1.5 with minimum distance 50

cm.

The panel is rotated around a vertical axis which passes the center of the display by changing the azimuthal angle to +30°. The distance between the panel and the photometer remains unchanged and the measured point is exact the same as the previous measured point.

The photometer is then rotated by changing its azimuthal angle with the fixed distance to the panel. Luminance at points “L” and “R” are given:

Lmin, +30° and Lmax, +30°

The LCD panel is then rotated to another azimuthal angle to -30°; and Lmin, -30° and Lmax, -30° are obtained by using the same procedure. The Luminance Uniformity (LR) is calculated as follow:

LR = ((Lmax, +30°/ Lmin, +30°)+( Lmax, -30°/ Lmin, -30°)) / 2.

C

W/2

D

W

0.1 D 0.1 D

R L

W/2

D/2

L

30°

Lmin, +30°

Lmax, +30°

LCD panel

Photometer

R

C

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Note (6) Definition of TCO 99 Luminance Contrast (Angular-dependent) (Cm):

Luminance contrast is measured at the center point of the LCD panel “C” along with the normal of the display with the same distance described in Note 13. The display is then rotated around the vertical axis by changing its azimuthal axis to +30°; and this gives:

L255 G.L., +30° and L0 G.L., +30°.

The LCD panel is then rotated to azimuthal angle to -30°; and L0 G. L., -

30° and L255 G.L., -30° are obtained by using the same procedure. The Luminance Contrast (Cm) is calculated:

Cm = (L255 G. L.- L0 G.L.)/ (L255 G. L.+ L0 G.L)

For both +30° and -30°. The lower value for Cm is reported.

C

D

W

W/2

W/2

D/2

30°

LCD panel

Photometer C

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Connector Pin Assignment D-sub mini 15pin Connector

Pin No. Pin Function Pin No. Pin Function

1 Red video input 9 NC 2 Green video input 10 Ground

3 Blue video input 11 No connection

4 NC 12 (SDA)

5 Ground 13 Horizontal sync (Composite sync)

6 Red video ground 14 Vertical sync 7 Green video ground 15 (SCL) 8 Blue video ground

DVI-D 24pin Connector (Optional)

Pin No. Pin Function Pin No. Pin Function

1 T.M.D.S Data 2- 13 NC 2 T.M.D.S Data 2+ 14 NC

3 T.M.D.S Data 2 Ground 15 Ground

4 NC 16 Hot Plug Detect

5 NC 17 T.M.D.S Data 0-

6 Clock line (SCL) 18 T.M.D.S Data 0+ 7 Data line (SDA) 19 T.M.D.S Data 0 Ground 8 NC 20 NC 9 T.M.D.S Data 1- 21 NC 10 T.M.D.S Data 1+ 22 T.M.D.S Clock Ground 11 T.M.D.S Data 1 Ground 23 T.M.D.S Clock+ 12 NC 24 T.M.D.S Clock-

DC Connector DC Power Jack, d=3.0mm Audio Connector Phone Jack, d=3.5mm

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OPERATING INSTRUCTIONS 2.1 Function Names 2.1.1 Front

No. Key Descriptions

Power Switch Power on � Power off Green Normal operation Orange Power Management

1 LED Indicator

Off Power off 2 MENU OSD control MENU button 3 > Right selection/ Volume button 4 < Left selection/ Volume button 5 AUTO Adjust Clock, Phase, H Position and V Position

automatically 6 Speaker 2.0 W x 2

Chapter 2 2

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2.1.2 Back

No. Name Descriptions

7 D-Sub D-sub mini 15pin Connector

8 DVI DVI-D 24pin Connector

9 Audio IN Phone Jack 3.5�

10 AC-In AC Power Jack

11 Lock hole Kensington

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2.2 OSD Menu Description

1. Power: Press this key to control power ON/OFF of the Monitor.

Green: normal display.

Orange flicker: no signal input.

Orange: power off.

2. Auto/Exit: When the input signal source is PC, used to execute auto

adjustment 3. < >: Press this button for selection or adjustment when OSD is shown.

4. +/ : Used to select the OSD function; when there is OSD menu,

used to increase

function value.

Enter brightness control function directly when there is no OSD

menu.

5. ��/ : Used to select the OSD function; when there is OSD menu,

used to decrease function value.

Enter contract control function directly when there is no OSD

menu.

6. Menu: Use to display OSD menu; when there is OSD menu, used to

execute OSD function or enter next layer of OSD menu; if

executing OSD function, exit OSD function and save the value

adjusted.

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2.3 OSD Control

1. Click MENU to display the OSD window as shown in the following

figure.

2. Click < or > to select the function to be adjusted as shown in the

following figure.

3. Click the MENU to select the function to be adjusted.

4. Click < or > to change current settings.

5. To exit OSD, select “ ” to close the OSD window and save

changes. To change other settings, repeat steps 2-4.

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2.4 OSD Menu Screen

� The OSD disappears several seconds after you stop pressing the

buttons while performing an adjustment.

� Any changes are automatically saved in the memory when the OSD

disappears. Turning off the power should be avoided while using the

menu.

� Adjustments for clock, phase and positions are saved for each signal

timing. Except for these adjustments, all other adjustments have only

one setting, which applies to all signal timings.

� The color will change from white to pink while the function is selected.

Bright/Contract Adjustment

Phase/Clock pulse Adjustment

Horizontal/Vertical Adjustment

Color Temp. Adjustment Language Selection

OSD Setting

Auto Adjustment

Message

Restore

Exit

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2.5 OSD Function Definition

Primary Directory Symbol

Secondary Directory Symbol

Secondary Directory Items Description

Contrast Adjust the contrast between the foreground and background of an image on the screen

Brightness Adjust the background brightness of the screen

Phase

Adjust the focus of the image (for analog input adjustment only)

Clock Pulse

Adjust the clock pulse of the image (for analog input adjustment only)

Horizontal Move the image left and right on the screen (for analog

input adjustment only)

Vertical Move the image up and down on the screen (for analog

input adjustment only) N/A Warm Color Temp. Set up the color temp. to be warm white color N/A Cold Color Temp. Set up the color temp. to be cold white color

User Definition/Red

User

Definition/Green

User

Definition/Blue

Adjust red/green/blue gain

N/A English N/A �� N/A Deutsch N/A Francis N/A Espanola N/A Italian N/A ��

N/A � � ��

Select the language you want

Horizontal Move OSD left and right

Vertical Move OSD up and down

OSD Time Display Adjust OSD time display settings

N/A Auto Adjustment

Set up horizontal, vertical, sequence and focus automatically (for analog input only)

N/A

Analog Digital Select the input source you want (for DVI Input only)

N/A Message

Display resolution, H/V frequency and the input port used for current input timing function

N/A Restore Restore to factory settings

N/A Exit Close the OSD window and save changes

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2.6 Plug and Play

� The new VESA Plug and Play function is used which eliminates the

complicated and time-consuming installation process.

� You can use the Plug and Play system without encountering usual

installation problems. Your computer system can easily identify and

automatically adjust the monitor.

� The LCD Monitor uses Display Data Channel (DDC) to send

Extended Display Identification Data (EDID) to the computer

system, so the computer system can be set to monitor auto adjust.

2.7 Power Saver

� Power control system, also called (Power Saver), is installed inside

the LCD Monitor.

� If the monitor has not been used for a certain period of time, the

system will turn the monitor to low voltage mode to save power. Slight

moving or any click will return to the original image.

� The VGA card inside the computer handles Power Saver. You can

use computer software to set the function.

� The LCD Monitor is compatible with EPA ENERGY STAR and

NÜTEK if used with a VESA DPMS computer.

� To save power, turn off the power of the LCD monitor when not in use.

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MACHINE DISASSEMBLY

AND ASSEMBLY

3.1 Disassembly Procedures

Picture Description Push the hooks and stand bottom away

Remove Hinge Cover

Loosen and remove 6 screws to remove Stand Assy

Loose and remove 5 screws.

Separate Bezel hooks to take Bezel and Rear Cover apart.

Lift up Rear Cover

Chapter 3 2

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Remove 2 pieces of Backlight wires.

Remove 2 pieces of Backlight wires.

Loose and remove 2 screws


Remove FFC.


Separate LCD module and bezel.

Separate the Cover AD

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Remove the Cover of X-PCB


Remove Power PCBA

Remove 2 pieces of FFC from AD PCBA


Remove AD PCBA

Separate both Audio Cable.

Take OSD PCBA apart

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3.2 Assembly Procedures Place OSD PCBA.

Insert Audit Cable to connectors of OSD PCBA

Insert new AD PCBA

Fasten 4 fixed screws of Power PCBA

Insert 2 pieces of FFC to AD PCBA

. Insert new Power PCBA

Fasten 4 fixed screws of Power PCBA

Join the cover hooks of X-PCB

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Join the Cover AD

Join LCD module and bezel.

Fasten 4 screws

Insert FFC

Fasten 2 screws

Fasten 2 screws

Insert 2 pieces of Backlight wires.

Insert 2 pieces of Backlight wires.

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Join hooks of Rear Cover with Bezel

Fasten 5 screws

Place Stand Assy and fasten 6 screws

Insert Hinge Cover

Have the hook latched

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Troubleshooting

4.1 Abnormal Display Troubleshooting

Chapter 4 2

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4.2 Abnormal (ON/OFF, LCD display, Keyboard ) Troubleshooting

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4.3 Abnormal (BIOS, OSD, Other Display ) Troubleshooting

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4.4 Audio Abnormal Troubleshooting

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Connector Information

5.1 Function block Diagram

Chapter 5 2

OSD Key Pad

D-sub Analog Video

AC Power

Main Board

LIPS Backlight

LCD Module DC/DC VCM Gamma

DC-5V

DVI-D Digital Video

(Optional)

5V

Signal

DC-19V

Audio in Speaker out

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FRU (Field Replaceable Unit) List

Part List Picture Part name Description Vendor Part

No. FUNCTION

BUTTON BOARD

PCBA for ,A190A2-H,A190A2-H-K2,106-02,Rev.02,USI(��)/ITC ( � � � �),ODM,RoHS

35-D003068

Lips BOARD Lips With Audio,DAC-12M028A,Ver:0F,5 V/3

A,12 V/0.7 A,4L,6 mA,2310 V,Delta Dong

Guan( � � � ),RoHS

27-D003092

Main Board PCBA for ,A170E3-T,A170E3-H-S1,302-24,Rev.24,USI(��)/USI(��

)/Suzhou ITC ( � � �

�)/ITC ( � � �

�),ODM,RoHS

35-D003845

CABLES FFC,FFCX771,36 Pins,TennRich(��),no

AL foil

32-D003157

CABLE FFC,FFC1DD1-507SA1A/1015105001FVC,15 Pins,TennRich(��)/Young Shin

32-D004034

AUDIO CABLE

Audio Cable,A150X2,18AWG,1

80cm,Black,JCE

32F2818004

Chapter 6 2

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MONITOR CABLE

Monitor Cable,A150X2,30AWG,

180cm,Black,JCE

32F3018003

Picture Part name Description Vendor Part

No. STAND

BASE Seat Assy,A170E2-

H03,ASSY,Black(J94611B5),JIIN MING Industry(��)

40-D003534

LCD FRONT BEZEL

Bezel Assy,A170E2-H03,ASSY,H94628B5,P

ush Power( � � )

40-D003531

LCD BACK COVER

Rear,A170E2-H03,ABS,PA-

757N,Black(J94611B5),Push Power( � � )

40-D003533

LCD STAND NECK

Stand Assy,A170E2-H03,ASSY,Black(J94611

B5),JIIN MING Industry(��)

40-D003528

Hinge Cover Cover Hinge,A170E2-H03,ABS,PA-

757N,Black(J94611B5),Push Power( � � )

40-D003536

PCBA COVER

PCBA Cover Assy,A190E3

36

Cover AD Cover AD Assy,A190A2,SECC,JIIN

MING Industry(��),without Dvi-D Hole

41-D003772

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