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.
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.
Conventions The following conventions are used in this manual: Screen messages Denotes actual messages that appear on screen Note Gives bits and pieces of additional information related to the current topic. Warning Alerts you to any damage that might result from doing or not doing specific actions. Caution Gives precautionary measures to avoid possible hardware or software problems. Important Reminds you to do specific actions relevant to the accomplishment of procedures.
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.
PRECAUTIONS z Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, Swimming pool or in a wet basement. z 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.
SPECIAL NOTES ON LCD MONITORS The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES z 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. z You may find slightly uneven brightness in the screen depending on the desktop pattern you use. z The LCD screen has effective pixels of 99.99% or more. It may include blemishes of 0.
Table of contents Chapter 1 Monitor Feature …………………………………………………………………...………..8 INTRODUCTION...............................................................................................................................................................8 ELECTRICAL REQUIREMEENTS....................................................................................................................................9 MONITOR BLOCK DIAGRAM ..............................................................................
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.
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.
LCD Panel Specification LCD Panel Model (LTM240M1-L01-L00) - 10 -
Note 1) Definition of Viewing Angle: Viewing angle range (10≤CR) 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) Note 3) Definition of Response time: Sum of TR , TF Note 4) After stabilizing and leaving the panel alone at a given temperature for 30 min, the measurement should be executed .
Optical characteristics measurement setup Notes 5) Definition of Luminance of White : measure the luminance of white at center point.
BUNI= 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.
CT = 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.
Panel Relative Humidity JP777-E02 Input Signals Video input • • • • • Type Analog R, G, B. Input Impedance 75 ohm +/- 2% Polarity Positive Amplitude 0 - 0.7 +/- 0.05 Vp Display Color same as LCD panel Sync input • Signal separate horizontal and vertical sync, or composite sync which are TTL compatible • Polarity positive and negative. Interface frequency The following frequency range is generalized by supported timing.
Supported Timing FH(KHZ) SYNC TOTAL ACTIVE FV(HZ) POLARITY (DOT/LINE) (DOT/LINE) 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 37.5 75 31.469 70.087 49.725 74.55 35.156 56.25 37.879 60.317 48.077 72.188 46.875 75 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 75.00 64 60 80 75 75 60 74.
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. 85Hz refresh rate Support Monitor should display 85Hz refresh rate mode as emergency mode. Monitor should display “Out of Range” warning menu at this mode. Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector Separate Sync PIN NO.
Color of plastic parts: Blue (PC99) 5 1 10 6 15 11 D-sub connector Digital Video input Connector: DVI-D (For AA868 only) Table 4-3-3.
MONITOR BLOCK DIAGRAM The LCD monitor will contain an main board, an inverter/ power board, key board and internal adapter which house the flat panel control logic, brightness control logic and DDC. The inverter board will drive the backlight of panel and the DC-DC conversion. The Adapter will provide thr 12V DC-power to inverter/ power board.
BLOCK DIAGRAM System Block Diagram - 20 -
Monitor board layout LABEL Component LABEL Component U2 EEPROM SOIC-8 24C02 CN2 D-SVB 15 PIN U5 GM1601 CN5 P-TWO AFN300-N2G1Z 30P P1 90D U8 HY5DU283222AF CN7 E&T 4300-09 9P P1.25 U9 AIC 1084-33V CN8 E&T 4500-12 12P P2.0 U10 APL1117-1.8V CN9 E&T 4500-12 12P P2.
Software flow chart - 22 -
General Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. z The power cord should be connected. z Connect the video cable from the monitor to the video card. z Press the power button to turn on the monitor position. The power indicator will light up.
System Installation Connecting the Display z Power off your computer. z Connect one end of the signal cable to the LCD Monitor’s VGA port. z Connect the other end of the signal cable to the VGA port on your PC. z Make sure connections are secure. Connecting the AC Power z Connect the power cord to the LCD Monitor. z Connect the power cord to an AC power source.
Gap Spec. The step between front bezel and back cover shall be within specification. Top and Bottom Left and Right Back cover & Bezel concavity Back cover & Bezel concavity 0.8mm ≤ A ≤ 1.3 mm 0.8mm ≤ A ≤ 1.3 mm Back Cover & Hinge Cover concavity 0mm ≤ B ≤ 0.
Base & Neck concavity 0mm ≤ C ≤ 0.6mm Top and Bottom Left and Right Back cover & Bezel step Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm 0mm ≤ D ≤ 0.
LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. The distance of the LCD display unit from left side to right should not large than 4.0mm.
Tilt Base Rotation Tilt up 15 ± 2°/ down 5 ±2° Plastic Material For TCO99 Front Bezel Back Cover The Others For MPRII Front Bezel Back Cover The Others PC+ABS PC+ABS ABS 94HB ABS 94V-0 ABS 94V-0 ABS 94HB GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.5 mm Swivel title noise spec. When adjust the monitor angle, the range should be limited -5º~ +15º and it should not have any noise.
POWER/Inverter Board Description This specification defined the performance and characteristic of power/inverter board. It supplies the following outputs : 1). 5Vdc: Logic power. 2). 24Vinv: Inverter power. Features Input Voltage: 100 ~ 240 ±10％Vac Input Frequency: 47 ~ 63Hz Total output power: 110Wmax Inverter brightness adjustment: Burst mode Protection function: auto-recovery type Interface Signals Input AC Inlet: HUAJIE SA-4S-066 or compatible. Output Connector & Pin Assignment: 1.
2.CNS3 (to Inverter board),type :E&T 4500 or equivalent. PIN NO. Function Function 1 2 3 4 +24Vcc +24Vcc +24Vcc +24Vcc Inverter Vcc Inverter Vcc Inverter Vcc Inverter Vcc 5 6 +24Vcc Inverter Vcc GND Inverter GND 7 GND Inverter GND 8 GND Inverter GND 9 GND Inverter GND 10 GND Inverter GND 11 N.C N.C 12 13 14 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.
Output Requirement Output Output Voltage 1 * Total Regulation* 1 Current MIN. TYP. MAX. +5Vstb (VCC) +5 %/ -5% 0.05A 1.0A 1.2A +5Vcc +5 %/ -5% 0.0A 2.0A 2.2A +24VInverter +5 %/ -5% 0.0A 3.3A 3.5A 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 .
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.
Monitor Control Keys KEY : Power , Menu , Adjust +/- , Vol +/-, Auto Position Of Controls Position of all switches : Bottom side of front bezel Position of LED : 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.
Main OSD Menu: Outline: (option) The description for control function : Main Menu Sub Menu Sub Menu Icon Item Icon Contrast Description Adjustment Reset Value Range Contrast from Digital-register.
English N/A Set OSD display language to N/A be set to English. English. 繁體中文 N/A The Language will Set OSD display language to N/A Tranditional Chinese. Deutsch N/A Set OSD display language to N/A German. Français N/A Set OSD display language to N/A French. Español N/A Set OSD display language to Spain. N/A Italiano N/A Set OSD display language to Italian. N/A 简体中文 N/A Set OSD display language to N/A Simplified Chinese. 日本語 N/A Set OSD display language to N/A Japanese. H.
OSD Message: Outline: The description for OSD Message : Item Description Auto Config When User Press Hot-Key “Auto”, will show this message, and the monitor do the auto config Please Wait function. Input Not When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range, Supported will show this message. This message will be flying. Cable Not When the video cable is not connected, will show this message. This message will be flying.
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.
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. 2 The DDC2Bis a bidirectional data channel based on the I C protocol. The host can request EDID information over the DDC2B channel.
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 Color Coordinate Tolerance Color Coordinate Tolerance Temp. x y 9300K 0.283 0.297 6500K 0.313 0.329 User - - u’ v’ +0.03 0.189 0.446 u’v’ < 0.01* +0.03 0.198 0.469 u’v’ < 0.01* - - - *) TCO’0X A.2.6.
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.
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.
Chapter 4 Troubleshooting Main Procedure 44
Power Circuit and Backlights Troubleshooting 45
Performance Troubleshooting 46
Function Troubleshooting 47
Chapter 5 Connector Information Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector Separate Sync PIN NO. 5 1 10 15 6 11 48 1 RED VIDEO 2 GREEN VIDEO 3 BLUE VIDEO 4 GROUND 5 GROUND 6 RED GROUND 7 GREEN GROUND 8 BLUE GROUND 9 PC5V (+5V DDC) 10 CABLE DETECTION 11 GROUND 12 SDA 13 H.SYNC 14 V.
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/).
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 C NO. PART NO.
Part list No. Photo Part Name Part No.
6 MB 461ACY30001 9 Power Board to MB cable AU: 453AC530051 Samsung: 453AC530051 7 Power Board PK101V0110I 8 Inverter Board PK07V0033I0 9 Front Bezel ASSY FAAA6611000 10 Keyboard to MB Cable DC020193500 53
13 Frame ECAR9915A00 14 LCD (R) AC6VA2400R0 15 Panel to MB cable NBX30000263 16 Function Board 54 454AC830011
Chapter 7 Schematic Diagram 55
