Acer AL502ug User manual

Analog LCD Monitor
AL502 User’s Manual
English

FCC compliance statement.........................................................................1
DOC compliance notice..............................................................................1
Introduction .................................................................................................2
Features ......................................................................................................2
Unpacking ...................................................................................................3
Screen position adjustment..........................................................................4
Connecting the power cord.........................................................................4
Safety precaution ........................................................................................5
Cleaningyourmonitor .................................................................................5
Preset modes ..............................................................................................6
Power saving ..............................................................................................7
DDC ...........................................................................................................7
Installation ...................................................................................................8
User controls...............................................................................................9
Front panel controls ................................................................................. 9
Basic section of a OSD screen ............................................................. 10
Standard OSD operation ....................................................................... 11
OSD function description ...................................................................... 11
Troubleshooting .........................................................................................13
Specification.............................................................................................. 14
TABLE OF CONTENTS
English

AL502 1
English
FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device,pursuant to Part15 of theFCC Rules. Theselimits are designedto provide resonable
protectionagainst radiofrequency interferencein aresidential installation.This equipment
generates, uses, and can radiate radio frequency energy. If not installed and used in
accordance with the instructions, it may cause interference to radio communications.
However, there is no guarantee that intereference will not occur in a particular installation.
If this equipment does cause interference to radio or television reception (this can be
determined by turning this equipment off and on), the user is encouraged to try to correct
the interference by one or more of the following measures:
·Reorient or relocate the receiving antenna.
·Increase the separation between this equipment and the receiver.
·Connect this equipment to an outlet on a circuit different from which the
receiver is connected to.
·Consult the dealer or an experienced radio/TV technician for help.
Caution:
To comply with the limits for an FCC Class B computing device, always use the shielded
signal cord and shielded DC power cord supplied with this unit.
Caution to the user:
The Federal Communications Commission warns the user that changes or modifications
to the unit not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
Notice of Compliance Canadian
Interference-causing Equipment Regulations
DOC Compliance Notice:
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
DOC Avis de Conformation
Le présent appareil numérique n’emet pas de bruits radioélectriques dépassant les limites
applicable aux appareils numériques de la class B prescrites dan le Réglement sur le
brouillage radioélectriques édicté par le ministére des Communications du Canada.

2 User’s Guide
INTRODUCTION
Congratulationsfor purchasingmodel AL502, a high performance 15-inch colorTFT LCD
monitor.The AL502 monitorprovides flicker-free and color imagesat optional resolutions.
Through this user guide, we will introduce you step-by-step all the features, functions and
technical specifications of the LCD monitor. Surely you will have a refreshing experience
working with the monitor.
FEATURES
The AL502 is a 15-inch TFT LCD monitor that is intelligent, microprocessor-based and
ergonomically designed display, compatible with most analog RGB (Red, Green, Blue)
display standards, including PS/V, PS/2, optional for Apple Macintosh Centris, Quadra,
and Macintosh II family signals. The LCD monitor is capable of displaying crisp and
vibrant color graphics with VGA, SVGA, XGA (non-interlaced), and most Macintosh
compatible color video cards.
·The monitor is able to properly function even in case of upgrade video cards or
software because of the wide auto-scanning compatibility range without requiring to
buy a new monitor.
·The internal microprocessor digitally controls auto-scanning. For horizontal scan
frequencies between 31.5 KHz and 60.2 KHz, and vertical scan frequencies between
56.3 Hz and 75.0 Hz. In each frequency mode, the microprocessor-based circuitry
allows the monitor to function at the precision-of a fixed frequency.
·The resident memory allows for storing factory default settings and also additional
user adjustment parameters.
·The maximum resolution achievable is XGA (1024 x 768), best suited for Windows
applications
·The compact and sleek cabinet design saves lot of your desk space and makes your
desk look neat and tidy.
·The monitor is compliant with VESA-DPMS power management standard. In oder to
save energy, the monitor must be connected to a system compliant with the standard.
·The monitor is also compliant with the most stringent environmental scheme of TCO
99. In this scheme, no environmental harmful substances are used during the entire
manufacturing process.

AL502 3
English
UNPACKING
Please check the following items are present when you unpack the box, and save the
packing materials in case you will need to ship or transport the monitor in future.
·LCDMonitor(AL502model)
·AC Power Cord ·Audio-In Cable
·User Manual ·Floppy Disk
(for test pattern and set up)
Speakers

4 User’s Guide
SCREEN POSITION ADJUSTMENT
In oder to optimize the best viewing position, you can adjust the tilt of the monitor by
using both of your hands to hold the edges of the monitor as shown in the figure below.
The monitor can be adjusted to 30 degrees up or 5 degrees down as indicated by arrow
below.
CONNECTING THE POWER CORD
·Check first to make sure that the power cord you use is the correct type required for
your area.
·This monitor has a universal power supply that allows operation in either 100/120V
AC or 220/240 V AC voltage area. No user-adjustment is required.
·Plug one end of the power cord to the power connector, plug another end to a proper
AC outlet.
·For unit using at 120 V AC:
Use a UL Listed Cord Set, Type SVT wire and plug rated 10 A/125 V.
·For unit using at 220/240 V AC (outside of U.S.):
Use a Cord Set consisting of H05VV-F cord and plug rated 16 A, 250 V. The cord set
should have the appropriate safety approvals for the country in which the equipment
willbe installed.

AL502 5
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SAFETY PRECAUTION
·Avoid placing the monitor, or any other heavy object, on the power cord to prevent
it from fire or electrical shock.
·Donot expose themonitor to rain,excessive moisture, ordust to avoidfire or shock
hazard.
·Do not cover the slots or openings of the monitor for proper heat dissipation.
Always put the monitor in a place where there is adequate ventilation.
·Avoid placing the monitor against a bright background or where sunlight or other
light sources may reflect on the face of the monitor. Place the monitor just below
eye level.
·Handle with care when transporting the monitor.
·Refrain from giving shock or scratch to the screen, as screen is fragile.
CLEANING YOUR MONITOR
Please carefully follow the below guidelines when cleaning the monitor.
·Always unplug the monitor before cleaning.
·Use a soft cloth to wipe the screen and cabinet front and sides.
·Apply a small quantity of alcohol to a soft cloth to clean the monitor screen, if requires
more than dusting.

6 User’s Guide
Mode Resolution H. Freq.
(KHz) Band Width (MHz)
Polarity
HV
1 VGA 720 x 350 70 Hz 31.47 28.322 + -
2 VGA 720 x 400 70 Hz 31.47 28.322 - +
3 VGA 640 x 480 60 Hz 31.47 25.175 - -
4 MAC 640 x 480 66 Hz 35.00 32.24 - -
5 VESA 640 x 480 72 Hz 37.86 31.5 - -
6 VESA 640 x 480 75 Hz 37.50 31.5 - -
7 VESA 800 x 600 56 Hz 35.16 36 + +
8 VESA 800 x 600 60 Hz 37.88 40 + +
9 VESA 800 x 600 75 Hz 46.88 49.5 + +
10 VESA 800 x 600 72 Hz 48.08 50 + +
11 MAC 832 x 624 75 Hz 49.72 57.283 - -
12 VESA 1024 x 768 60 Hz 48.36 65 - -
13 SUN 1024 x 768 65 Hz 52.45 70.49 - -
14 VESA 1024 x 768 70 Hz 56.48 75 - -
15 VESA 1024 x 768 75 Hz 60.02 78.75 + +
PRESET MODES
To reduce the need for adjustment for different modes, the monitor has default setting
modes that are most commonly used as given in the table below. If any of these display
modesare detected, themonitor can self adjusts the picture size andcentering. For optimum
adjustment, the user is suggested to perform the Auto Setup under Windows “Full Screen”
pattern or using the pattern in the floppy disk provided. When none of the mode is
matched, the user can store their preferred modes in the user modes. The monitor is
capable of storing up to 9 user modes. The only condition to store as a user mode is the
new display information must have 1 KHz difference for horizontal frequency or 1 Hz for
vertical frequency or the sync signal polarities are different from the default modes.

AL502 7
English
POWER SAVING
The monitor will be driven into “Power Saving” mode by the control s ignal from the
display controller, as indicated by the amber-color power LED.
The power saving states will be kept until a control signal has been detected or the
keyboard or mouse is activated. The recovery time from Active OFF state back to ON state
is around 10 seconds.
DDC
To make your installation easier, the monitor is able to Plug and Play with your system if
your system also supports DDC protocol. The DDC (Display Data Channel) is a
communication protocol through which the monitor automatically informs the host system
about its capabilities, for example, supported resolutions and corresponding timing. The
monitor supports and DDC2B standard.
State Power
Consumption LED Light
ON Normal Green
OFF < 5 W Amber

8 User’s Guide
INSTALLATION
To install the monitor to your host system, please follow the steps as given below:
Steps
1. Connect Video Cable
a. Make sure both the monitor and computer are powered-OFF.
b. Connect the video cable to the computer.
2. Connect power cord
Connect the power cord to the monitor, then to a properly grounded AC outlet.
3. Connect the Audio cable.
4. Power-ON Monitor and Computer
Power-ON the monitor first, then power-ON the computer.
This sequence is very important.
5. If the monitor still does not function properly, please refer to the troubleshooting section
to diagnose the problem.
*Pleasedon’t open
thecover.

AL502 9
English
USER CONTROLS
Front Panel Controls
1. Power Switch: To turn ON or OFF the power.
2. Power LED: Lights up to indicate the power is turned ON.
3. +: To increase the philipvalue of the parameter in the OSD, which has been selected for
adjustment.
4. -: To decrease the value of the parameter in the OSD, which has been selected for
adjustment.
5. Select Up: To move upward in the OSD menu.
6. Select Down: To move downward in the OSD menu.
12346 5

10 User’s Guide
Basic Sections of a OSD Screen
92
COLOR BALANCE
9300 7500 6500 USER
B
94
G
100
R
CONTRAST
100
BRIGHTNESS
V-POSITION
H-POSITION
CLOCK
OSD V-POSITION
57
PHASE
OSD H-POSITION
VOLUME
OSD DURATION
10 SEC
OSD LANGUAGE
RECALL DEFAULTS
NO YES
INFORMATION
AUTO ADJUST
MUTE ON
OSD LANGUAGE
RECALL DEFAULTS
NO YES
INFORMATION
AUTO ADJUST
MUTE ON
OSD LANGUAGE
RECALL DEFAULTS
INFORMATION
AUTO ADJUST
MUTE ON
OSD LANGUAGE
RECALL DEFAULTS
NO YES
INFORMATION
AUTO ADJUST
MUTE ON
ENG FRA ITA DEU ESP
OSD LANGUAGE
RECALL DEFAULTS
INFORMATION
AUTO ADJUST
MUTE ON
1024 x 768
FH:60.1KHz FV:75.1Hz

AL502 11
English
Standard OSD Operation
1. Press any front panel key to activate the OSD menu.
2. Use Select Up or Down keys to move up or down through the menu. The parameter
will be highlighted when selected.
3. Then use + or - to increase or decrease the value of the parameter, or make selection
between different options.
4. To quit the OSD screen at any time during the operation, press Select Up and Down
keys together at the same time. If no keys are pressed for a time period, the OSD
automatically disappears.
OSD Function Description
Item Function Description
Brightness To increase or decrease the brightness.
Contrast To increase or decrease the contrast.
H-Position To move the screen toward left or right.
V-Position To move the screen upward or downward.
Phase To increase or decrease the snow noise of the image.
Clock The dot clock is fine-adjusted after auto adjust.
OSD
H-Position To move the OSD position horizontally on the screen. When the "+" key is pressed, the OSD control menu will
move to the right side of the screen. Likewise when the "-"
key is pressed, the OSD control menu will move to the left
side.
OSD
V-Position To move the OSD position vertically on the screen. When the "+" key is pressed, the OSD control menu will
move to the up side of the screen. Likewise when the "-" key
is pressed, the OSD control menu will move to the lower
side.
Volume To increase or decrease the sound level.

12 User’s Guide
Note: For above adjustment action, press + and - simultaneously will return to the
factory default setting.
Item Function Description
Color Balance Pressing "-" or "+" to select 9300, 7500, 6500 and USER.
Only when selecting USER, you can make adjustments to the
R/G/B content, otherwise not.
Press + and - simultaneously to restore to factory default
setting.
Auto-Adjust Press + to turn on this function. The Auto-Adjust will
automatically adjust V-Position, H-Position, Clock, and
Clock-Phase, the whole process takes about 5 seconds.
(Please install the attached LCD monitor utility disk for Auto-
Adjust).
Recall
Defaults To return the monitor to its default settings.
OSD
Language Select among English, French, Italian, Deutsch and Spanish.
Information Indicates the current resolution, H-Frequency, and
V-Frequency.

AL502 13
English
TROUBLESHOOTING
Before sending your LCD monitor for servicing, please check the troubleshooting list
below to see if you can self-diagnose the problem.
Problems Current Status Remedy
No
Picture
LED ON •Using OSD, adjust brightness and contrast to
maximum or reset to their default settings.
LED OFF •Check the power switch.
•Check if AC power cord is properly connected
to the monitor.
LED displays
amber color •Check if video signal cable is properly connected at the back of monitor.
•Check if the power of computer system is ON.
Abnormal
Picture
Unstable Picture •Check if the specification of graphics adapter
and monitor is in compliance which may be
causing the input signal frequency mismatch.
Display is missing,
center shift, or too
small or too large
in display size
•Using OSD, adjust RESOLUTION, CLOCK,
CLOCK-PHASE, H-POSITION and V-
POSITION with non-standard signals.
•Using OSD, in case of missing full-screen image,
please select other resolution or other vertical
refresh timing.
•Wait for a few seconds after adjusting the size of
the image before changing or disconnecting the
signal cable or powering OFF the monitor.
Abnormal
Sound No sound, or sound level is too
low
•Check the audio cable with the host PC is
connected.
•Check the setups of the host PC a minimum or
off status.

14 User’s Guide
SPECIFICATION
* All specifications are subject to change without notice.
Model Name AL502
LCD Display
Display Type 15" TFT LCD
Power Input
Voltage:
Frequency: 100-240V AC 50-60 Hz
Current Rating 0.5 A
Display Area (H x V) 304.128 x 228.096 mm
Contrast Ratio 250:1 (Typ.)
Viewing Angle 120°H 75°V (Typ.)
Operational Features
Display Colors 16,194,277
Resolution XGA (1024 x 768) at 75Hz maximum.
Brightness 200 cd/m² (Typ.)
Response Time Tr: 15 ms Tf: 35 ms (Typ.)
Interface Analog RGB
Input Connector 15-pin D-sub / Audio input
Multimedia
Two Internal Speakers 1 watt output (Max.) x 2
Users Controls
Front Panel Controls Power On/Off, Select (Up/ Down) , Value (+/ -)
OSD Controls Contrast, Brightness, H-Position, V-Position, Phase,
Clock, Factory Defaults, Auto-Setup, Color,
Language, Volume
Physical Specification
Dimension (H x W x D) 370 x 385 x 172 (mm)
Net Weight 4.1 Kg
Power
Power Saving VESA DPMS standard
Power Consumption 30 W (Typ.)
Regulation
Safety & EMI UL, CUL, TUV-GS, TUV-Ergonomics, FCC-B, CE,
TCO99 (optional)