Acer AL1703 User manual

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Acer AL1703
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 Test Conditions……………………………………….………… 8
1.2 Features…………………….……………………………….…... 8
1.3 LCD Panel Specification……………………………………... 9
Chapter 2OPERATINGINSTRUCTIONS……………….………….……12
2.1 Function Name…………………………………………………12
2.2 OSD Menu Description…..……………………………………14
2.3 OSD Control…..…………………………………………………15
2.4 OSD Menu Screen……..……...……………………………….15
2.5 OSD Function Definition.…………………………………...…16
2.6 Plug and Play……….…………………………………………..17
2.7 Power Saver……………………………………………………..17
Chapter 3 Machine Disassembly and Assembly……..…….……18
3.1 Machine Disassembly…………………………………………18
3.2 Machine Assembly……………….…………………………... 21
Chapter 4 Troubleshooting…………………….….…….………….……25
4.1 Abnormal display Troubleshooting…………………………25
4.2 Abnormal (On/Off, LCD Display, K/B) Troubleshooting...27
4.3 Abnormal (BIOS, OSD, Other Display) Troubleshooting...28
4.4 Audio Abnormal………………………….…………………….29
Chapter 5 Connector Information…………...……….………...……30
5.1 Function Block Diagram…………….…………………………30
5.2 Connector Location……..………….…………………………31
5.3 D-sub Mini 15Pin Connector…………………...….…….……32
5.4 DC Connector…………...…………………….…….…….……32
5.5 Audio Connector………………………………...….…….……32
5.6 Main Board Pin Assignment Introduction……….…….……32
Chapter 6 FRU(Field Replaceable Unit……...……….………………37
Chapter 7 Schematic Diagram…………….………………..…….……41

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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
l17”SXGA TFT LCD Panel
lTN Mode Liquid Crystal
lD-SUB
lAudio Function (Optional)
lSupport to 75Hz Refresh Rate
lSupport VESA-DCC 2B plug & play function
lSupport VESA-DPMS Power Management Function
lSuper Wide Viewing Angle
lHigh Brightness & Contrast Ratio
lHigh Brightness & Contrast Angular Dependent
lFast LC Response Time
lLight Weight
Chapter 1
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1.3 LCD panel Specification
Item Specification
Active Area 337.9(H) x 270.34 (V) (17.0” diagonal)
Driver Element a-si TFT Active Matrix
Pixel Number 1280 x R.G.B. x 1024
Pixel Pitch 0.264 (H) x 0.264 (V)
Pixel Arrangement RGB Vertical Stripe
Display Color 16.2M
Tran missive Mode Normally White
Viewing Angle
(H/V) 160 / 120
Brightness 350
Contrast Ratio 350
LCD panel
LC Response Time
(Tr+Tf) 14 (Tr: 4+ Tf: 10)
Separate Sync. TTL Level
Horizontal Sync. Positive / Negative
Vertical Sync. Positive / Negative
Graphic
Input Connector D-Sub mini 15 pins, DVI-D 24 pins (Optional)
Auto Adjust Clock, Phase, H Position & V Position
Screen Scaling VGA/SVGA/XGA/SXGA Full Screen Display
Power
Management VESA DPMS, DVI DMPM, ENERGY STAR®
Compliance
Color Adjustment User, 6500K, 7500K & 9300K
Performance
OSD Language English, French, German, Spanish, Italian, Japanese,
Traditional Chinese, Simplified Chinese, Russian, Korean
(1)Definition of Viewing Angle (θx, θy):
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

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(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:
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)]
(3)Definition of Response Time (TR, TF):
Active area
Vertical Line Number
Horizontal Line Number
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
100%
90%
10%
0%
Gray Level 255
Gray Level 0
Gray Level 255
Time
TR
Optical
Response
TF

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(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.
Photometer
(TOPCON BM-5A)
Field of View= 2º
500 mm
LCD Module
LCD Panel
Center of the Screen
Light Shield Room
(Ambient Luminance < 2 lux)

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OPERATING INSTRUCTIONS
2.1 Function Name
2.1.1 Front
No. Key Descriptions
1 Power Switch Power on / Power off
Green/Blue Normal operation
Orange Power Management2
LED
Indicator
Off Power off
3 AUTO/ EXIT Adjust Clock, Phase, H Position and V Position automatically / Exit
TURBO Turbo Brightness Switch
(Picture mode / Text mode / Economy mode) A170E1-T01
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INPUT/TURBO D-Sub, DVI Input Source Selection/Turbo
Brightness Switch A170E1-H01
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＋/＋/QUICK MENU Access (Brightness)
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－/－/QUICK MENU Access (Contrast)
7 MENU OSD control MENU button/Access Main/Sub-menu
8 Speaker 2.5W x 2
Chapter 2
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2.1.2 Back
No.
Name Descriptions
9. AUDIO-IN d=3.5mm stereo mini Jack
10. VGA-IN D-sub mini 15pin Connector
11. N/A N/A
12. DC-IN DC Power Jack, d=2.0mm.
13. Lock hole Kinglock

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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. Input / Turbo : D-Sub, DVI input source selection
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.
Menu
Auto
/Exit
Input/
Turbo
—
/ + /
Power

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2.3 OSD Control
uPressthe“Menu” button to start the OSD feature.
uClick the“+”or “-“button to select the function to be adjusted.
uClick the“Menu”button to access into the function to be adjusted.
uClick the “+”or “-“button to change the current setting of the function.
uTo exit the OSD menu or go back to the previous action by clicking
the “Auto/Exit”button. It will save the change automatically.
uTo repeat above steps for changing the setting of other functions.
2.4 OSD Menu Screen
uThe OSD disappears several seconds after you stop pressing the
buttons while performing an adjustment.
uAny changes are automatically saved in the memory when the OSD
disappears. Turning off the power should be avoided while using the
menu.
uAdjustments for clock,phase and positionsare saved for each signal
timing. Except for these adjustments, all other adjustments have only
one setting which applies to all signal timings.
uThe color will change from white to pink while the function is selected.
Source Resolution & Frequency
Status
Input Source Selection (optional)
ImageAdjustment
VolumeAdjustment
Audio Current Status
Language Selection
Settings
Input Source Status (Optional)
Color Temp. Status
Color Temp. Selection

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2.5 OSD Function Definition
Primary
Directory Secondary DirectoryDescription
Image Brightness Adjust the brightness of the screen.
Contrast Adjust the contrast of the image.
Clock Adjust the clock pulse of the image.
Phase Adjust the focus of the image.
H. Position Move the image left and right on the screen.
V. Position Move the image up and down on the screen.
Sharpness Adjust the picture sharpness of lower resolutions.
Audio Volume Adjust the volume of the audio.
Mute Set up the audio to be mute on or off.
Color 9300K Set up the color temp. to be 9300K white color.
7500K Set up the color temp. to be 7500K white color.
6500K Set up the color temp. to be 6500K white color.
User/Red Adjust red/green/blue gain.
User/Green
User/Blue
Language English Select the language you want.
Français
Italiano
Deutsch
Español
日本語
????
繁體中文
Settings OSD Timeout Adjust OSD display time setting.
OSD Position Move OSD display position
to any one of the following 5
positions within the overall screen.
Auto Setting Set up to adjust clock, phase and positions automatically.
Recall Restore to factory settings
Input Source Analog Select Analog input source:
(Optional) Digital Select Digital input source:
uBrightness: Press the Brightness Button when the Menu is not
displayed.
uContrast:Press the Contrast Button when the Menu is not displayed.
uAuto Setting: Press the Auto Button when the Menu is not displayed.
uTurbo: Press the Input Button when the Menu is not displayed.
nPct: Picture Mode (High brightness)
nText: Text Mode (Normal)
nEco Economy (Brightness of back-light is reduced)
nChanging to a lower brightness mode can lessen eye fatigue.
nChange from Picture Mode to Text Mode when working with text.
nChange from Text Mode to Economy Modes when viewing the
screen for long periods.
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2.6 Plug and Play
uThe new VESA Plug and Play function is used which eliminates the
complicated and time-consuming installation process.
uYou can use the Plug and Play system without encountering usual
installation problems. Your computer system can easily identify and
automatically adjust the monitor.
uThe 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
uPower control system, also called (Power Saver), is installed inside
the LCD Monitor.
uIf 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.
uThe VGA card inside the computer handles Power Saver. You can
use computer software to set the function.
uThe LCD Monitor is compatible with EPA ENERGY STAR and
NÜTEK if used with a VESA DPMS computer.
uTo 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 2 screws.
Separate Bezel hooks to take Bezel and Rear Cover
apart.
Lift up Rear Cover
Remove the Tinfoil
Chapter 3
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Remove FFC
Loose and remove screw and remove Cover-FFC
Loose and remove 2 screws
Loose and remove 5 screws
Remove the Cover of X-PCB
Remove 4 pieces of Backlight wires.
Loose and remove 4 screws
Remove Power PCBA

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Remove 2 pieces of FFC from AD PCBA
Loose and remove 1 screw
Remove AD PCBA
Disassembly PCBA complete.
Loose and remove 4 crews
Lift up LCD module and remove bezel.
Remove FFC.
Separate both Audio Cable.