Acer AL1931 Support and Manuals
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AL1931 Service Guide - Page 1
...Line Surge Test (IEC 61000-4-5 Surge 44 8.1 Climatic Condition ...44 8.2 Test Conditions: ...44 8.7 Display set high-resolution mode, AC input use AC 240V 44
1 ELECTRICAL REQUIREMENTS...3 2.1 Standard Test Conditions ...3 2.2 LCD monitor General specification...3 2.3 LCD Panel Specification ...4 2.4 Input Signals ...11 2.5 CONTROLS ...16 2.6 White Color Temperature ...20 2.7 POWER SUPPLY ...21...
AL1931 Service Guide - Page 4
...gauss
cm = in front of LCD panel
30 minutes 5 seconds Chroma 2250 signal generator or equivalent, directly Connected to the monitor under the following conditions, unless otherwise specified. Ambient light: Viewing distance : Warrn up time All specifications: Fully functional: Measuring Equipment:
Control settings User brightness control: User contrast control: User red/white balance, Green...
AL1931 Service Guide - Page 13
.... If the entered mode does not match the supported timing the display optimization will not be assured.
• Horizontal Frequency 30KHz --80KHz(analog), 31.5- 64KHz(digital)
• Vertical Frequency
56Hz ---------75Hz DISPLAY MODES
MONITOR MODE NO.
1 2 3 4
SCREEN RESOLUTION
640X480 640X480 640X480 720X400
HORIZONTAL SYNC RATE
(kHz) 31.5 37.8637.531.5 -
5
800X600
37...
AL1931 Service Guide - Page 17
... 0.7Vpp 75 ohm terminated
: NTSC/PAL
2.5 CONTROLS
A brief description and the location of all LCD Monitor functions controls and indicators:
543
2
1
Figure 2-1
1 Stereo Speakers
PC Audio Stereo output.
1. Press the soft power switch to increase the OSD setting.
1. Monitor is OFF.
1. Power is in "Power Saving Mode". Direct press either left or right
4
Function...
AL1931 Service Guide - Page 18
...
To improve focus clarity an image stability.
Warm
This performance is selected
User red Increase or decrease red. This features choose on OSD menu, designed for easy user-viewing environments. 2.5.1 Adjusting the Monitor's Display
The monitor has four function control buttons to VGA setting.
OSD Function Menu
To access OSD Main menu, simply press one...
AL1931 Service Guide - Page 19
Utilities
OSD timeout
You can select how long the monitor waits after the last adjust of the nine languages you can not adjust these setting, The performance is reddish and closer to increase right speaker volume.
User must be using factory preset video mode to increase base. Exit
To exit the OSD menu.
This...
AL1931 Service Guide - Page 20
...; 60 HZ: • VER 1.00:
Current mode resolution. If other support modes input to monitor EEPROM will remember this mode again. OSD
To move the OSD image horizontally left or right. User must be using factory preset video mode to the factory setting.
Current mode vertical frequency±1Hz.
The range is from 0 to...
AL1931 Service Guide - Page 26
... signals so as to construct a high display quality LCD monitor.
3.2 Features • On board embedded micro-processor to detect display timings and control
user functions.
• Using PixelWorks PW131 design to generate optimum LCD timings.
2
• Using E PROM to memorize every adjusted parameter. • Support up to 13 display modes from VGA to SXGA. •...
AL1931 Service Guide - Page 32
...KEY-UP KEY-DOWN
Comment Power saving mode Monitor is designed to offer a user interfaced control panel which passes and receives ...signals to and from VL-903 display control board.
4.2 Connector and Switch Locations
4.3 Connector type
Location
Type
J1
4500-5
J4
4500-8
J3
87502-0200
J2
87502-0200
D5
LED
Maker E&T E&T ACER ACER...
AL1931 Service Guide - Page 56
PART NO. LAM939
REV. 0A
C NO. DESCRIPTION
SPECIFICATION
F0
001
REMARKS
# LAM939F0001 LAM939F ABO
UR+TCO99 MCG28/MSV16 19"FUJ
1 GA050000400 POWER CORD SET 2 DC190021010 CB ASY 3 DC190021020 CB ASY 4 DC190021030 CB ASY 5 DC190021040 CB ASY 6 PK100005000 AC ADAP 7 58290530001 DIS UNIT ABO 8 68008930001 PACKING ABO (AL932) 9 X66AN430001 MEC PACKING ABO
SP305X1.8MXIS14 SVT BLK...
AL1931 User Guide - Page 1
... the AC Power...3 Connecting the Audio Cable ...3 Connecting the AV and S-Video cable 3 Setting Up the LCD Monitor...4 Power Management System ...4
Chapter 2 Display Controls 4
User Controls ...4 Adjusting the Monitor's Display...5 Function Description ...5
Chapter 3 Technical Information 7
Specifications ...7 Standard Timing Table...10 Troubleshooting ...10
Preface
This manual is designed...
AL1931 User Guide - Page 2
... should be retained for sufficient airflow. Store LCD Monitor in the box:
* LCD Monitor
* User's Manual
* 1.8M Monitor-to-PC VGA Cable
* AC Adapter
* 1.8M Monitor-to-PC DVI-D Cable
* 1.8M Power Cord
* 1.8M Stereo Jack Audio Cable
* 1.8M S-Video Cable
* 1.8M RCA Jack Audio Video Cable
If you open the box to service this unit by an authorized technician. 5.
Attempting...
AL1931 User Guide - Page 3
...These specifications meet the VESA Flat Panel Monitor Physical
Mounting Interface Standard (paragraphs 2.1 and 2.1.3, version 1, dated 13
November 1997). Connect the other end of the
monitor.
3. Video Connector
Figure 1-5
Attention: This device must be in order to the AC adapter.(See Fig. 1-6)
2.
Connect the power cord to the LCD Monitor's " LINE
IN " jack. Detaching LCD Monitor...
AL1931 User Guide - Page 8
...save settings in memory
OSD Format
20 characters x 9 rows
Power Management
Mode
Power Consumption* AC Input...DPMS requirements measured from AC Input end of AC adapter. input through AC/DC adapter
VGA Cable
1.8M ...Setup
Use EEPROM to 85%
8 Sync Input
Signal
Separate TTL compatible horizontal and vertical synchronization Digital TMDS
Polarity
Positive and negative
Plug & Play
Supports...
AL1931 User Guide - Page 10
... VGA Modes. PROBLEM Picture is unclear and unstable
The picture is not connected to LCD monitor at all connections are , take advantage of modes supported by this LCD monitor will display a
message "No Input Signal".
10 Refer to "Phase" function in
the Standard Timing Table or replace the VGA card, and then repeat steps 1 and 2. If step...
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