Related Manuals for Acer AL2416
Summary of Contents for Acer AL2416
- Page 1 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/ - 1 -...
- Page 2 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.
- Page 3 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.
- Page 4 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.
- Page 5 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.
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Page 6: Special Notes On Lcd Monitors
SPECIAL NOTES ON LCD MONITORS The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES 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. -
Page 7: Table Of Contents
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 ... -
Page 8: Chapter 1 Monitor Feature
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 &... -
Page 9: Electrical Requirements
ELECTRICAL REQUIREMENTS Standard Test Conditions All tests shall be performed 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/white balance and... -
Page 10: Lcd Panel Specification
LCD Panel Specification LCD Panel Model LTM240M1-L01-L00 - 10 -... - Page 11 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. Luminance with all pixels white (Gmax) Note 3) Definition of Response time: Sum of T 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.
- Page 12 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) X 100% Samsumg Bmin Bmax - 12 -...
- Page 13 X 100% Bmax: Maximum brightness Bmin: Minimum brightness Notes 7) Definition of Flicker level Flicker Voltage = x 100 % LMD Voltage ♦ 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.
- Page 14 = 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.
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Page 15: Input Signals
Panel Relative Humidity Input Signals Video input • Type • Input Impedance • Polarity • Amplitude • Display Color Sync input • 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. -
Page 16: Supported Timing
Supported Timing FH(KHZ) SYNC TIMING FV(HZ) POLARITY 640x350 31.469 VGA-350 70.087 640x400 24.83 NEC PC9801 56.42 640x400 31.469 VGA-GRAPH 70.087 640x400 31.5 NEC PC9821 70.15 640x480 31.469 VESA-PAL 50.030 640x480 31.469 VGA-480 59.94 640x480 35.00 APPLE MAC-480 66.67 640x480 37.861 VESA-480-72Hz 72.809 640x480... - Page 17 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.
- Page 18 D-sub connector Digital Video input Connector: DVI-D (For AA868 only) Table 4-3-3. Pin assignment for DVI-D (24pin) connecto TX2- TX2+ Shield (TX2 / TX4) DDC-Serial Clock DDC-Serial Data No Connect *) In case, the power of the PC unit is switched off and the power of the monitor is switched on, no voltage may occur at pin 14.
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Page 19: Monitor Block Diagram
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. -
Page 20: Block Diagram
BLOCK DIAGRAM System Block Diagram - 20 -... -
Page 21: Monitor Board Layout
Monitor board layout LABEL Component EEPROM SOIC-8 24C02 GM1601 HY5DU283222AF AIC 1084-33V APL1117-1.8V APL1117-25V APL5883-33DC FL 512K8 PLSST39VF040 LABEL Component D-SVB 15 PIN P-TWO AFN300-N2G1Z 30P P1 90D E&T 4300-09 9P P1.25 E&T 4500-12 12P P2.0 E&T 4500-12 12P P2.0 - 21 -... -
Page 22: Software Flow Chart
Software flow chart - 22 -... -
Page 23: General Instructions
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. The power cord should be connected. Connect the video cable from the monitor to the video card. -
Page 24: System Installation
System Installation Connecting the Display Power off your computer. Connect one end of the signal cable to the LCD Monitor’s VGA port. Connect the other end of the signal cable to the VGA port on your PC. Make sure connections are secure. Connecting the AC Power Connect the power cord to the LCD Monitor. -
Page 25: Gap Spec
Gap Spec. The step between front bezel and back cover shall be within specification. Top and Bottom Back cover & Bezel concavity 0.8mm ≤ A ≤ 1.3 mm Back Cover & Hinge Cover concavity 0mm ≤ B ≤ 0.5mm Left and Right Back cover &... - Page 26 Base & Neck concavity 0mm ≤ C ≤ 0.6mm Top and Bottom Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm Left and Right Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm - 26 -...
- Page 27 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. - 27 -...
- Page 28 Tilt Base Rotation Tilt up 15 ± 2°/ down 5 ±2° Plastic Material For TCO99 Front Bezel PC+ABS Back Cover PC+ABS The Others ABS 94HB For MPRII Front Bezel ABS 94V-0 Back Cover ABS 94V-0 The Others ABS 94HB GAP Spec. Gap between panel with bezel is 0 mm <...
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Page 29: Power/Invertor Board
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... - Page 30 2.CNS3 (to Inverter board),type :E&T 4500 or equivalent. PIN NO. Function +24Vcc Inverter Vcc +24Vcc Inverter Vcc +24Vcc Inverter Vcc +24Vcc Inverter Vcc +24Vcc Inverter Vcc Backlight on/off Dimmer Brightness control, connected to CN1#12,bright 2.Inverter-side connecter : YEONHO 20015 HS-04L or equivalent. PIN NO.
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Page 31: Inverter Board
Output Requirement Output Voltage +5Vstb (VCC) +5Vcc +24VInverter 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. -
Page 32: Safety
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. - Page 33 Monitor Control Keys KEY : Position Of Controls Position of all switches Position of LED Power , Menu , Adjust +/- , Vol +/-, Auto : Bottom side of front bezel : Bottom side of front bezel - 33 -...
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Page 34: Chapter 2 Operating Instruction
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. -
Page 35: Main Osd Menu
Main OSD Menu: Outline: The description for control function : Main Menu Sub Menu Sub Menu Icon Item Icon Contrast Brightness Focus Clock H. Position V. Position Warm Cool User / Red User / Green User / Blue (option) Description Contrast from Digital-register. - Page 36 English Set OSD display language to English. Set OSD display language to 繁體中文 Tranditional Chinese. Deutsch Set OSD display language to German. Français Set OSD display language to French. Español Set OSD display language to Spain. N/A Italiano Set OSD display language to Italian. N/A 简体中文...
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Page 37: Osd Message
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. - Page 38 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.
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Page 39: Plug And Play
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. -
Page 40: White Color Temperature
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 Temp. 9300K 0.283 6500K 0.313 User *) TCO’0X A.2.6.1 requirement User should follow “Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM’s”. -
Page 41: Chapter 3 Machine Disassembly And Replacement
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. - Page 42 Disassemble the main board After remove EMI cover from chassis. Remove the four screws from chassis. 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.
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Page 44: Chapter 4 Troubleshooting
Chapter 4 Troubleshooting Main Procedure... - Page 45 Power Circuit and Backlights Troubleshooting...
- Page 46 Performance Troubleshooting...
- Page 47 Function Troubleshooting...
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Page 48: Chapter 5 Connector Information
Connector Information Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector PIN NO. Chapter 5 Separate Sync RED VIDEO GREEN VIDEO BLUE VIDEO GROUND GROUND RED GROUND GREEN GROUND BLUE GROUND PC5V (+5V DDC) CABLE DETECTION GROUND H.SYNC... -
Page 49: Chapter 6 Fru List
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. - Page 51 10 454AC830011 PCBA KEY/B 11 X66AUV30001 MEC PARTS ABO 13.1.11.4 Material List by Location SPECIFICATION LAA668 24"SAM 1920X1200 LTM240M1-L01-L00 24"B A Acer AA668 POW-INV 14P AA668 POW-LOG 12P AA668 CTRL-KEY 9P-8P AA668 CTRL-PANEL POWER 12P 30P F P1.0 PAD1.0 AA668 SUM24"...
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Page 52: Part List
Part list Photo Part Name Hinge Cover Base BACK Cover ASSY STAND EMI COVER ASSY Part No. FAAA6622000 FAAA661A000 FAAA6613000 FAAA6610000 EEAA6617000... - Page 53 Power Board to MB AU: 453AC530051 cable Samsung: 453AC530051 Power Board PK101V0110I Inverter Board PK07V0033I0 Front Bezel ASSY Keyboard to MB Cable 461ACY30001 FAAA6611000 DC020193500...
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Page 54: Schematic Diagram
Frame ECAR9915A00 LCD (R) AC6VA2400R0 NBX30000263 Panel to MB cable 454AC830011 Function Board... -
Page 55: Chapter 7 Schematic Diagram
Chapter 7 Schematic Diagram...