Acer AL2416W Service Guide
Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/

Copyright

Copyright 2003 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated.

Disclaimer

The information in this guide is subject to change without notice. Acer Incorporated makes no representations or warranties, either expresses or implied, with respect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose, Any Acer Incorporated software described in this manual is sold or licensed as is. Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, of its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software.
Acer is a registered trademark of Acer Corporation. Intel is a registered trademark of Intel Corporation. Pentium and Pentium II/III are trademarks of Intel Corporation. Other brand and product names are trademarks and/or registered trademarks of their respective holders.

Conventions

The following conventions are used in this manual: Screen messages Note Warning Caution Important Denotes actual messages that appear on screen Gives bits and pieces of additional information related to the current topic. Alerts you to any damage that might result from doing or not doing specific actions. Gives precautionary measures to avoid possible hardware or software problems. Reminds you to do specific actions relevant to the accomplishment of procedures.

Preface

Before using this information and the product it supports, please read the following general information. 1. this Service Guide provides you with all technical information relating to the BASICCONFIGURATION decided for Acers global product offering. To better fit local market requirements and enhance product competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g. add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such cases, please contact your regional offices or the responsible personnel/channel to provide you with further technical details. 2. please not WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel. If, for whatever reason, a part number change is made, it will not be noted in the printed Service Guide, for ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and Service of customer machines.

WARNING: (FOR FCC CERTIFIED MODELS)
NOTE: this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, Which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: 1. Reorient or relocate the receiving antenna. 2. Increase the separation between the equipment and receiver. 3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 4. Consult the dealer or an experienced radio/TV technician for help.

Warning

Use only shielded signal cables to connect I/O devices to this equipment. You are cautioned that changes or modifications not expressly approved by the party responsible for comliance could viold your authority to operate the equipment. As an ENERGY STAR Partner our company has determined that this product meets the ENERGY STAR guidelines for energy efficiency.

WARNING:

To prevent fire or chock hazard, do not expose the monitor to rain or moisture. Dangerously high voltages are present inside the monitor. Do not open the cabinet. Refer servicing to qualified personnel only.

PRECAUTIONS

Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, Swimming pool or in a wet basement. Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance. Use only a trolley or stand recommended by the manufacture or sold with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacture and follow the kit instructions. Slots and openings in the back and bottom of the cabinet area provided for ventilation. To ensure reliable operation of the monitor and to protect it from overheating, be sure these openings are not blocked or covered. Do not place the monitor on a bed, sofa, rug or similar surface. Do not place the monitor near or over a radiator or heat register. Do not place the monitor in a bookcase or cabinet unless proper ventilation is provided. The monitor should be operated only from the type of power source indicated on the label. If you are not sure of the type of power supplied to your home, consult your dealer or local power company. The monitor is equipped with a three-pronged grounded plug, a plug with a third (grounding) pin. This plug will fit only into a grounded power outlet as a safety feature. If your outlet does not accommodate the three-wire plug, have an electrician install the correct outlet, or use an adapter to ground the appliance safely. Do not defeat the safety purpose of the grounded plug. Unplug the unit during a lightning storm or when it will not be used for long periods of time. This will protect the monitor from damage due to power surges. Do not overload power strips and extension cords. Overloading can result in fire or electric shock. Never push any object into the slot on the monitor cabinet. It could short circuit parts causing a fire or electric shock. Never spill liquids on the monitor. Do not attempt to service the monitor yourself; opening or removing covers can expose you to dangerous voltages and other hazards. Please refer all servicing to qualified service personnel. To ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate configured receptacles marked between 100-240V AC, Min. 3.5A. The wall socket shall be installed near the equipment and shall be easily accessible.

SPECIAL NOTES ON LCD MONITORS
The following symptoms are normal with LCD monitor and do not indicate a problem.
Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch and then turn it on again to make sure the flicker disappears. You may find slightly uneven brightness in the screen depending on the desktop pattern you use. The LCD screen has effective pixels of 99.99% or more. It may include blemishes of 0.01% or less such as a missing pixel or a pixel lit all of the time. Due to the nature of the LCD screen, an afterimage of the previous screen may remain after switching the image, when the same image is displayed for hours. In this case, the screen is recovered slowly by changing the image or turning off the Power Switch for hours.

Table of contents

Chapter 1 Monitor Feature..8
INTRODUCTION......8 ELECTRICAL REQUIREMEENTS....9 MONITOR BLOCK DIAGRAM..... 19 BLOCK DIAGRAM..... 20 MONITOR BOARD LAYOUT..... 21 SOFTWARE FLOW CHART..... 22 GENERAL INSTRUCTIONS..... 23 SYSTEM INSTALLATION..... 24 POWER/INVERTOR BOARD..... 29 SAFETY...... 32
Chapter 2 Operating Instruction.34
CONTROLS..... 34 MAIN OSD MENU...... 35 OSD MESSAGE..... 37 PLUG AND PLAY..... 39 WHITE COLOR TEMPERATURE..... 40 AUDIO TECHNICAL SPECIFICATION.... 40
Chapter 3 Machine Disassembly and Replacement
DISASSEMBLY PROCEDURE.... 41
Chapter 4 Troubleshooting.44

TROUBLESHOOTING..... 44

Chapter 5 Connector Information.48
CONNECTOR INFORMATION.... 48

Chapter 6 FRU List 49

PART LIST...... 49
Chapter 7 Schematic Diagram.54

SCHEMATIC DIAGRAM.... 54

Chapter 1

Monitor Feature

INTRODUCTION
Scope This specification defines the requirements for the 24 MICRO-PROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15 pin D-sub VGA connector and eliminates the requirement of optional special display card. It also supports VESA DPMS power management and plug & play function. There is a build-in stereo audio amplifier with volume control to drive a pair of speakers.

Description

The LCD monitor is designed with the latest LCD technology to provide a performance oriented product with no radiation. This will alleviate the growing health concerns. It is also a space saving design, allowing more desktop space, and comparing to the traditional CRT monitor, it consumes less power and gets less weight in addition MTBF target is 20k hours or more.
Comparison Chart of AL2416W Comparison Chart of AA668 & AA868 AA668 Normal 24 panel

LTM240M1-L01

Panel Signal Interface Sync Type for analog input

Color Temp user adjust

AA868 Normal 24 panel
D-SUB Separate / compatible / Support
D-SUB & DVI-D Separate / compatible / Support
DDC Speaker Headphone Jack Microphone Jack USB Hub Tilt / Swivel Height Adjust
NO NO No Not support No / No Option

ELECTRICAL REQUIREMENTS

Standard Test Conditions
All tests shall be performed under the following conditions, unless otherwise specified. 225 lux Ambient light : 50 cm in front of LCD panel Viewing distance : Warrn up time All specifications : 30 minutes Fully functional : 5 seconds Chroma 2250 signal generator or equivalent, directly Measuring Equipment : Connected to the monitor under test. Minolta CA100 photometer, or equivalent Control settings User brightness control : Maximum (unless otherwise specified ) User contrast control: Typical (unless otherwise specified ) User red/white balance, Green/white balance and Blue/white balance control : In the center (unless otherwise specified ) Power input: 110Vac or 230Vac Ambient temperature: Analog input mode: Digital input mode: C ( F) 1280 x1024 /60 Hz 1920x1200/60Hz (For AA868)

MEASUREMENT SYSTEMS

The units of measure stated in this document are listed below: 1 gamma = 1 nano tesla 1 tesla = 10,000 gauss cm = in x 2.54 lb = kg x 2.2 degrees F = [C x 1.8] + 32 degrees C = [F - 32]/1.8 u' = 4x/(-2x + 12y + 3) v' = 9y/(-2x + 12y + 3) x = (27u'/4)/[(9u'/2) - 12v' + 9] y = (3v')/[(9u'/2) - 12v' + 9] nits = cd/(m2) = Ft-L x 3.426 lux = foot-candle x 10.76

LCD Panel Specification

LCD Panel Model (LTM240M1-L01-L00)

- 10 -

Note 1) Definition of Viewing Angle: Viewing angle range (10CR)
Note 2) Definition of Contrast Ratio (CR): Ratio of gray max(Gmax),gray min(Gmin) at the center point of panel. CR= Luminance with all pixels white (Gmax) Luminance with all pixels black (Gmin) TR , TF

Note 3) Definition of Response time: Sum of
Note 4) After stabilizing and leaving the panel alone at a given temperature for 30 min, the measurement should be executed.Measurement should be executed n a stable, windless ,and dark room.30 min after lighting the back-light. This should be measured in the center of screen. Dual lamp current :13.0mA(6.5mA x2)(Refer to the note(1) in the page 14 for more information ). Environment condition :Ta=252C

- 11 -

Optical characteristics measurement setup
Notes 5) Definition of Luminance of White : measure the luminance of white at center point.
Notes 6)Definition of 9 points brightness uniformity (Measuring points: Refer to the Note 5) AU BUNI= Samsumg

- 12 -

Bmin X 100% Bmax

Bmax-Bmin X 100% Bmax

Bmax: Maximum brightness Bmin: Minimum brightness Notes 7) Definition of Flicker level F Flicker Voltage pp = x 100 % LMD Voltage dc
One maximum value of three estimated values. For this test ,an LMD(Light Measurement Device)is needed with adequate response time to track any visible rate flicker component and with a voltage level output proportional To luminance intensity. Test Pattern: For dot inversion Driving(Gray levels of foreground dots on the test panel Are G22,G32,and G45) Test Point :Center point of the display area
Note 8) Definition of Crosstalk

(Refer to the VESA STD)

The calculation for shadowing is made from the 2 luminance measurements Gbkg and Lsh, as follows: Lmax -Lmin

- 13 -

= x100 % Lmin
Where Lmax is the larger value of Gbkg or Lsh , and Lmin is the smaller of the two. To determine background and foreground levels (colors),first set the background to any gray scale or color level suitable for shadowing determination.(Note that it may take several iterations of adjusting background level and box levels to determine the proper value for the background.Next display the box levels to determine the proper value for the background level. Look for shadowing in any direction from box E. Independently vary the gray level (or color) of the background and box E until the worst case shadowing is observed. This defines the background (Gbkg) and foreground (Gfg) levels to be maintained for the remainder of the test. One point only (the target) will be measured. To determine that point proceed as follows Using the background and foreground gray levels of step1 (Gbkg and Gfg). Turn on each box at a time. Look for the case with the worst shadowing. The box causing the worst case is the shadowing source, or Bsrc. Use Bsrc and the box opposite from it that lies directly in the shadow path. That is the target box, or Btgt. Note that box Eight be either Bsrc or Btgt, depending on the shadowing conditions, but typically Bsrc and Btgt will be a pair of opposite boxes, A&C or B&D. Btgt will only be displayed for aligning the LMD. It will be turned off for the actual measurement. The target box point (Btgt) will be measured with the source box (Bsrc) turned on then off. (Btgt is for alignment purpose only) Display the background only at level Gbkg. Display Btgt determined in step 2 above. Using the correct distance, angle, and measurement aperture, align the LMD to the center of the Btgt. Turn off Btgt. With Gbkg set to its proper level, measure the luminance (or color). Next,turn on the source box Bsrc. Again measure at the center point of Btgt (without Btgt present.). In this case the LMD will be measuring the shadowing level, Lsh.

- 14 -

Panel Relative Humidity

JP777-E02

Input Signals

Video input

Sync input
Type Input Impedance Polarity Amplitude Display Color
Analog R, G, B. 75 ohm +/- 2% Positive 0 - 0.7 +/- 0.05 Vp same as LCD panel separate horizontal and vertical sync, or composite sync which are TTL compatible positive and negative.

Signal Polarity

Interface frequency The following frequency range is generalized by supported timing. If the entered mode does not match the supported timing the display optimization will not be assured.
Horizontal Frequency 24KHz --80KHz Vertical Frequency 49Hz -------75Hz

- 15 -

Supported Timing
FH(KHZ) TIMING FV(HZ) 640x350 VGA-350 640x400 NEC PC9801 640x400 VGA-GRAPH 640x400 NEC PC9821 640x480 VESA-PAL 640x480 VGA-480 640x480 APPLE MAC-480 640x480 VESA-480-72Hz 640x480 VESA-480-75Hz 720x400 VGA-400-TEXT 832x624 APPLE MAC-800 800x600 SVGA 800x600 VESA-600-60Hz 800x600 VESA-600-72Hz 800x600 VESA-600-75Hz 1024x768 XGA 1024x768 COMPAQ-XGA 1024x768 VESA-768-70Hz 1024x768 VESA-768-75Hz 1024x768 APPLE MAC-768 1152x864 60Hz 1152X864 60Hz 1152x864 60Hz 1280x960 60Hz 1280x960 70Hz 1280x960 75Hz 1280x1024 VESA-1024-60Hz 1280x1024 VESA-1024-75Hz 1600x1200 VGSA-1200-60Hz 1920x1200 VGSA-1200-60Hz 31.469 70.087 24.83 56.42 31.469 70.087 31.5 70.15 31.469 50.030 31.469 59.94 35.00 66.67 37.861 72.809 37.31.469 70.087 49.725 74.55 35.156 56.25 37.879 60.317 48.077 72.188 46.48.363 60.004 53.964 66.132 56.476 70.069 60.023 75.029 60.24 75.02 54.054 59.270 63.851 70.012 67.50 75.00 60.00 60.00 70.00 70.00 75.00 75.60 74.POLARITY + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + (DOT/LINE) (DOT/LINE) WIDTH (DOT/LINE) PORCH (DOT/LINE) PORCH (DOT/LINE) FOREQ.(MHZ) 25.175 21.05 25.175 25.197 25.175 25.175 30.24 31.5 31.5 28.322 57.49.71.78.80 94.499 108.00 108.00 126.00 135.193 SYNC TOTAL ACTIVE SYNC FRONT BACK PIXEL
Note: Mode 640x350, 640x400 and 720x400 will locate on middle position but cannot be expanded to full screen on vertical direction

- 16 -

Support Modes
There will be 28 total support modes to accommodate the above mode and other video modes within the frequency range of the monitor.

+12Vcc Audio power (N/A option) Power on (24V/5Vcc)Enable signal , Active : 2V~5V, off<1V Backlight Backlight On/Off control signal, connected to CNS3#12 on/off Dimmer Brightness control, connected to CN3#13,bright max.=3.3V,min.=0V.

- 29 -

2.CNS3 (to Inverter board),type :E&T 4500 or equivalent. PIN NO. Function +24Vcc +24Vcc +24Vcc +24Vcc Inverter Vcc Inverter Vcc Inverter Vcc Inverter Vcc Function
+24Vcc Inverter Vcc GND Inverter GND GND GND GND GND N.C Inverter GND Inverter GND Inverter GND Inverter GND N.C
Backlight Backlight On/Off control signal, connected to CNS1#11 on/off Dimmer Brightness control, connected to CN1#12,bright max.=3.3V,min.=0V. N.C N.C
2.Inverter-side connecter : YEONHO 20015 HS-04L or equivalent. PIN NO. Function 1-1 1-2 1-3 1-4 Hot1 N.C N.C Hot2 High voltage Comment High voltage
PIN NO. Function +5Vaudio Audio power (optional). GND GND GND Vbri ---Ven +5Vdc +5Vdc +5Vdc Audio ground Ground Ground

Function

Brightness control from logical board (0V to 3.3V) ----Inverter enable signal from logical board (high active , >3V) +5Vdc supply for logical board +5Vdc supply for logical board +5Vdc supply for logical board

- 30 -

Output Requirement
Output Output Voltage +5Vstb (VCC) +5Vcc +24VInverter *
Current MAX. 1.2A 2.2A 3.5A
Total Regulation* +5 %/ -5% +5 %/ -5% +5 %/ -5%

MIN. 0.05A 0.0A 0.0A

TYP. 1.0A 2.0A 3.3A
Total Regulation includes (1) Line Regulation (2) Load Regulation (3) Cross Regulation
Output Ripple/Noise: +/- 3% maximum
3.4.1.3 Protection function 1) SCP: Short circuit protection must be acted on both outputs 2) OPP: Should be protected when output power consumption is within 130W.
3.4.1.4 Overshoot: +10% or less Full Load 3.4.1.5 Dynamic Loading: +5% or less Full Load 3.4.1.6 Efficiency: 75% min. at full load condition.

INVERTER BOARD

DESIGNED FOR SAMSUNG LTM240M!-L01 MIN. INPUT VOLTAGE INPUT CURRENT Normal BACKLIGHT VOLTAGE LAMP CURRENT (every lamp) DRIVING FREQUENCY EFFICIENCY Vin ON/OFF sequence OLP TIME BRIGHTNESS RANGE Brightness control Brightness Strike voltage at 0C Strike voltage at 25C Operating life time 22.8V ---------------------40KHz ---------------------30% 0V -------3540Vrms 2830Vrms 30,000 hrs TYP. 24V 3.3A 1800Vrms 6mArms --------75% 0.5S 1S --------------500cd/m2 ---------------------MAX. 25.2V --------------7mArms 60KHz ---------------------100% 3.3V ----------------------------3.3V, brightness max. Open lamp protection Vin = 24V,max Each CCFL COMMENT 24V+/-5% Vin=24V,Vbrite=3.3V

- 31 -

SAFETY
Leakage Current: 0.25mA @ 100Vac Insulation Resistance: more than 3M ohms while withstanding a voltage of 500Vac Hi-Pot: 3Kvac with using 3mA cut off current

Power Consumption

The monitor is equipped with a power-management according to the below. There is a delay of 5s 7s before the transition from On-state to any power saving state to avoid unintentionally entering of a power saving stage during display resolution and timing mode changes. Transition from any power saving state to another can be instantaneous. The recovery from Off-state requires no manual power on. Mode Power-On H-Sync. on V-Sync. on Video active Pw-cons. < 110W Indicator Green LED DPMS-off off off blanked <2W Orange LED DC-Switch-off SYNC. On means: Normal operation SYNC. Off means: H sync. V sync. F < 10KHz duty cycle > 25% F < 10Hz duty cycle > 25% < 1 W@100VAC Dark LED < 5S Rec. time* --

CONNECTORS / CONTROLS

Connectors Power Analog RGB Audio Red Video Green Video Blue Video Serial Clock for ISP Ground Red Ground Green Ground Blue Ground : Monitor rear side -PC I/P for PC : : 3.5mm Stereo female : Monitor rear side : Monitor rear side / Data Cable 15 : AC Inlet : 15-pin D-sub female / male
Pin Assignment of 15-pin D-sub: +5V FOR DDC Detect Serial Data for ISP Serial Data for DDC H-Sync. V-Sync. Serial Clock for DDC

- 32 -

Monitor Control Keys
KEY : Power , Menu , Adjust +/- , Vol +/-, Auto

Position Of Controls

Position of all switches Position of LED : Bottom side of front bezel : Bottom side of front bezel

- 33 -

Chapter 2

Operating Instructions

CONTROLS
Control panel (monitor front panel) 1. Power ON/OFF switch, push to ON and push to OFF. (toggle switch) 2. Power LED, will be green when monitor is on; be amber when in power saving mode. 3. Function select. 4. Adjust increase. 5. Adjust decrease. 6. Auto adjust.

- 34 -

Main OSD Menu:

Outline:

(option) The description for control function :
Main Menu Icon Sub Menu Item Contrast Sub Menu Icon Contrast from Digital-register. Description Adjustment Range 0-100 Recall Cool Contrast Value Brightness Backlight Adjustment 0-100 Recall Cool Brightness Value Focus Adjust Picture Phase to reduce Horizontal-Line noise Clock Adjust picture Clock to reduce Vertical-Line noise. H. Position Adjust the horizontal position of the 0-100 picture. V. Position Adjust the verticalposition of the picture. Warm N/A Recall Warm Color Temperature from EEPROM. Cool N/A Recall Cool Color Temperature from N/A EEPROM. User / Red Red Gain from Digital-register. 0-N/A The Color Temperature will be set to Cool. 0-100 Do Auto Config Do Auto Config 0-100 Do Auto Config 0-100 Do Auto Config Reset Value

User / Green

Green Gain Digital-register.

User / Blue

Blue Gain from Digital-register.

- 35 -

English
Set OSD display language to English.
The Language will be set to English.
Set OSD display language to Tranditional Chinese.

Deutsch

Set OSD display language to German.

Franais

Set OSD display language to French.

Espaol Italiano

N/A N/A N/A
Set OSD display language to Spain. N/A Set OSD display language to Italian. N/A Set OSD display language to Simplified Chinese. N/A
Set OSD display language to Japanese.

H. Position

Adjust the horizontal position of the 0-100 OSD.

V. Position

Adjust the verticalposition of the OSD.

OSD Timeout

Adjust the OSD timeout.

10-120

Auto Config
Auto Adjust the H/V Position, Focus N/A and Clock of picture.

Source Change

Analog and Digital source change.(option)

Information

Show the resolution, H/V frequency N/A and input port of current iput timing.
Clear each old status of Auto-configuration and set the color temperature to Cool.

Exit OSD

- 36 -

OSD Message:

The description for OSD Message :
Item Auto Config Please Wait Input Not Supported Cable Not Connected No Signal When the video cable is connected, but the is no active signal input, will show this message, then enter power saving. Description When User Press Hot-Key Auto, will show this message, and the monitor do the auto config function. When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range, will show this message. This message will be flying. When the video cable is not connected, will show this message. This message will be flying.
When the monitor is power on, the LOGO will be showed in the center.

Item of Factory menu

Vendor may customize design and add adjustment items Factory menu as far as all required items are included.

- 37 -

1) Bright Adjust Brightness and Contrast value to Max. 2) Auto Balance Adjust each R, G, B contrast (gain) and offset. Method of auto adjust is depends on hardware.
Adjusted value of R, G, B gain shall be used for initial value of Contrast in user menu. All value shall be adjustable manually. This function shall be located in 3. tag of Factory menu.
3) Factory color temp data edit Following data for color temp shall be editable manually. -color temp default preset No.

- 38 -

Plug and play
Plug & play DDC2B feature
This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities. The communication channel is defined in two levels, DDC2B. The DDC2Bis a bidirectional data channel based on the I C protocol. The host can request EDID information over the DDC2B channel.
THIS MONITOR WILL APPEAR TO BE NON-FUNCTIONAL IF THERE IS NO VIDEO INPUT SIGNAL. IN ORDER FOR THIS MONITOR TO OPERATE PROPERLY, THERE MUST BE A VIDEO INPUT SIGNAL. This monitor meets the Green monitor standards as set by the Video Electronics Standards Association(VESA) and/or the United States Environmental Protection Agency (EPA) and The Swedish Confederation Employees (NUTEK). This feature is designed to conserve electrical energy by reducing power consumption when there is no video-input signal present. When there is no video input signal this monitor, following a time-out period, will automatically switch to an OFF mode. This reduces the monitors internal power supply consumption. After the video input signal is restored, full power is restored and the display is automatically redrawn. The appearance is similar to a Screen Saver feature except the display is completely off. The display is restored by pressing a key on the keyboard, or clicking the mouse.
Using The Right Power Cord
The accessory power cord for the Northern American region is the wallet plug with NEMA 5-15 style and is UL listed and CSA labeled. The voltage rating for the power cord shall be 125 volt AC. Supplied with units intended for connection to power outlet of personal computer: Please use a cord set consisting of a minimum No. 18 AWG, type SJT or SVT three conductors flexible cord. One end terminates with a grounding type attachment plug, rated 10A, 250V,CEE-22 male configuration. The other end terminates with a molded-on type connector body, rated 10A, 250V, having standard CEE-22 female configuration. Please note that power supply card needs to use VDE 0602, 0625, 0821 approval power cord in European counties.

- 39 -

White Color Temperature
White color temperature is 4 preset as 9300, 7500,6500 and User, Default value of user color should be user which is maximum setting for panel.
Target of color setting Color Temp. x 9300K 6500K User 0.283 0.313 y 0.297 0.329 +0.03 +0.03 u 0.189 0.198 v 0.446 0.469 uv < 0.01* uv < 0.01* Color Coordinate Tolerance Color Coordinate Tolerance
*) TCO0X A.2.6.1 requirement User should follow Microsoft Windows Color Quality Specification for Liquid Crystal Display OEMs. (http://www.microsoft.com/hwdev/tech/color/ColorTest.asp)
Electrical characteristics (Tamb=25)
Audio amplifier(USE Panasonic VP-7723A Audio Analyzor. ) Item Audio Input Freq. Min. Input Voltage(V) Spec. Typ. 0.5Vm s Input Current(m A) Audio Voltage Gain Frequency Response 500m Vrms 1KHz 6dB Volume Max.,load 4 Max. Comment
500m Vrms 300Hz-20KH -10dB z
+10d B Volume Max.,load 4
Signal to Noise ratio Total harmonic distortion Cross talk Output Watt. Volume Control
500m Vrms 1KHz 500m Vrms 1KHz 500m Vrms 1KHz 500m Vrms 1KHz
-40dB Volume Max.,load 4 1% except speakers distortion
-30dB Volume Max.,load 4 0.5W Volume Max.,load 4 Analog

Chapter 3

Machine Disassembly and Replacement

Disassembly Procedure

Disassemble the base
1. Remove the neck cover. 2. Remove the four screws to release the hinge. 3. Remove the base

Disassemble the chassis

1. Remove the five screws to release the back cover. 2. Remove the two screws to release the EMI cover from chassis. 3. Remove the Main Board, Power Board, Inverter and Key Board. (See the next page for detail.) 4. Remove the six screws from chassis then take the chassis. 5. Remove the four screws from chassis and release the panel.
Disassemble the main board 1. After remove EMI cover from chassis. 2. Remove the four screws from chassis. 3. Remove the four screws from chassis and release the main board.
4. Disassemble audio line from power board. 5. Disassemble two VL-VK lines from VL board. 6. Disassemble power line from VL board. 7. Disassemble FPC line from VL board.
Disassemble the power board
1. After remove main board then disassembly the power board.
2. Remove the three screws from power. 3. Remove the four screws from power.
4. 5. Disassemble two voltage lines from power board. 6. Remove the one screw to release line from Chassis. 7. Remove the three screws from Chassis. 8. Remove the two screws to release power board from Chassis. 9. Then take the power board from the chassia.
Disassemble the Inverter and key board

1. Remove the one screw to release VK board from bezel. 2. Disassemble the two speaker lines from VK board.

Chapter 4

Troubleshooting

Main Procedure

Power Circuit and Backlights Troubleshooting
Performance Troubleshooting

Function Troubleshooting

Chapter 5

Connector Information

Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector Separate Sync

PIN NO.

RED VIDEO GREEN VIDEO BLUE VIDEO GROUND GROUND RED GROUND GREEN GROUND BLUE GROUND PC5V (+5V DDC) CABLE DETECTION GROUND SDA H.SYNC V.SYNC SCL

Chapter 6

FRU (Field Replaceable Unit) list
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL1916. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE : Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel(http://aicsl.acer.com.tw/spl/). For whatever reasons a part number change is made, it will not be noted in the printed Service Guide. For ACER-AUTHORIZED CERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts repair and service of customer machines. NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how best to dispose it, or follow the rules set by your regional Acer office on how to return it.
13.1.11.4 Material List by Location Date: 05/31/05 Time: 19:39:25 R/N:ydr6069j - D1H =================================================================================================== ================================= QUANTITY REQUIRED DWG.NO. 582H01 REV. 0A SPECIFICATION -----------------C NO. PART NO. DESCRIPTION -------------------------------------REMARKS - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----# 582H0130001 DIS UNIT ABO LAA668 24"SAM 1920X1200
1 AC6VA2400R0 LCD MODU 2 DC0201933R0 H-CON SET 3 DC0201934R0 H-CON SET 4 DC020193500 H-CON SET 5 DC020193700 H-CON SET 6 NBX30000263 FFC 7 PK07V0033R0 INVERTER 8 PK101V0110I PWR MODU 9 461ACY30001 FIRMWARE CTRL/B 10 454AC830011 PCBA KEY/B 11 X66AUV30001 MEC PARTS ABO
LTM240M1-L01-L00 24"B A Acer 1 - - 301 AA668 POW-INV 14P 1 - - 304 AA668 POW-LOG 12P 1 - - - 305 AA668 CTRL-KEY 9P-8P 1 - - 306 AA668 CTRL-PANEL POWER 12P 1 - - - 307 30P F P1.0 PAD1.0 AA668 SUM24" 1 - - - 308 AA668 24" TBD292LF TDK 1 - - 309 FSP130-4F01GP 5V/12V/24V DV89A 1 - - - 310 VL-2401 LAA668A ABO 1 - - - 351 VK-922 LAA- - 353 LAA- - 355 End of Report

Acer Computer (Shanghai) Limited
3F, No. 168 Xizang medium road, Huangpu District, Shanghai, China
Declaration of Conformity
3F, No. 168 Xizang medium road, Huangpu District, Shanghai, China Contact Person: Mr. Easy Lai Tel: 886-2-8691-3089 Fax: 886-2-8691-3000 E-mail: easy_lai@acer.com.tw

Hereby declare that:

Product: Trade Name: Model Number: SKU Number:
24 LCD Monitor Acer AL2416W AL2416Wxxx (x = 0~9, a ~ z, A ~ Z or Blank)
Is compliant with the essential requirements and other relevant provisions of the following EC directives, and that all the necessary steps have been taken and are in force to assure that production units of the same product will continue comply with the requirements.
EMC Directive 89/336/EEC as attested by conformity with the following harmonized standards:
-. EN55022:1998 + A1:2000 + A2:2003, AS/NZS CISPR22:2002, Class B -. EN55024:1998 + A1:2001 + A2:2003 -. EN61000-3-2:2000, Class D -. EN61000-3-3:1995 + A1:2001
Low Voltage Directive 73/23/EEC as attested by conformity with the following harmonized standard:

-. EN60950-1:2001

RoHS Directive 2002/95/EC on the Restriction of the Use of certain Hazardous Substances in Electrical and Electronic Equipment
--------------------------------
Easy Lai / Director Acer Computer (Shanghai) Limited