Acer AL1912 Technical Information

- 1 - Acer AL1912 Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://c

- 10 - LCD monitor General specification Panel Type: 19 “ active matrix color TFT LCD 1). Fujitsu FLC48SXC8V-10 Display size: 376

- 11 - Total output power: 60 Watt max. LCD Panel Specification LCD Panel Model (Hydis LT17E12-200) • Display Type active matrix color TFT

- 12 - Panel Relative Humidity Input Signals Video input • Type Analog R, G, B. • Input Impedance 75 ohm +/- 2% • Polarity Positive • Amplitu

- 13 - Supported Timing TIMING FH(KHZ) SYNC TOTAL ACTIVE SYNC FRONT BACK PIXEL FV(HZ) POLARITY (DOT/LINE) (DOT/LINE) WIDTH

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

- 15 - MONITOR BLOCK DIAGRAM The LCD monitor will contain an main board, an inverter/ power board, key board and internal adapter which house the fl

- 16 - BLOCK DIAGRAM System Block Diagram MCU LVDS Signals MVPRL including ADC, Scaling LVDS And OSD function

- 17 - Monitor board layout LABEL Component LABEL Component U1 74LVC14 CN1 D-SVB 15 PIN U2 24LVC21 CN9 E&T 4501-10 U4 MVPRL CN3

- 18 - Software flow chart

- 19 - General Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monito

- 2 - Copyright Copyright © 2003 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed

- 20 - System Installation Connecting the Display  Power off your computer.  Connect one end of the signal cable to the LCD Monitor’s VGA po

- 21 - The step between front bezel and back cover shall be within specification. Top and Bottom Left and Right Back cover & Bezel concavity

- 22 - Base & Neck concavity 0mm ≤ C ≤ 0.6mm Top and Bottom Left and Right Back cover & Bezel step Back cover & Bezel step 0mm ≤

- 23 - 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

- 24 - 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

- 25 - POWER/Inverter Board Description This specification defined the performance and characteristic of power/inverter board. It supplies the f

- 26 - 2.Inverter-side connecter : SM02B-BHSS-1-TB(JST) for AL1912 m / SM02(8.0)B-BHS-1(JST) for AR599 or equivalent. PIN NO. Function Comment 1

- 27 - AC-DC Output Specification Tolerance Output Current Output Voltage --- MIN MAX Voltage Tolerance +5Vdc +5 /-3 % 0.05A 1.5A 4.85~5.2

- 28 - Inverter Electrical Specification: For Fujitsu FLC488SC8V-10 (AL1912 m) Condition Min. Typ. Max. Unit Input Voltage --- --- 15 --- V

- 29 - Power Consumption The monitor is equipped with a power-management according to the below. There is a delay of 5s … 7s before the transition

- 3 - Conventions The following conventions are used in this manual: Screen messages Denotes actual messages that appear on screen Note Gives bits

- 30 - Chapter 2 Operating Instructions CONTROLS Control panel (monitor front panel) 1. Power ON/OFF switch, push to ON

- 31 - Main OSD Menu: Outline: The description for control function : Main Menu Icon Sub Menu Item Sub Menu Icon Description Adjustment Range R

- 32 - User / Red Red Gain from Digital-register. 0-100 100 User / Green Green Gain Digital-register. 0-100 100 User / Blue Blue Gain from D

- 33 - Hot-Key Menu:(For AL1912 m only) Outline: The description for Hot-Key function : Item Operation IconDescription Adjustment Range Reset Valu

- 34 - LOGO: When the monitor is power on, the LOGO will be showed in the center. Item of Factory menu Vendor may customize design and add adjust

- 35 - Plug and play Plug & play DDC2B feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allo

- 36 - White Color Temperature White color temperature is 4 preset as 9300, 7500,6500 and User, Default value of user color should be user which

- 37 - Electrical characteristics (Tamb=25°) Audio amplifier(USE Panasonic VP-7723A Audio Analyzor. ) Spec. Item Audio Input Freq. Min. Typ. Max. Co

38Chapter 3 Machine Disassembly and Replacement Disassembly Procedure Disassemble the base 1. Remove the neck cover. 2. Remove the

39Disassemble the main board 1. Disassemble audio line from power board. 2. Disassemble two VL-VK lines from VL board. 3. Disassemble power line f

- 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, pu

40Disassemble the speakers 1. Remove the two screws to release line and VK board from bezel. 2. Remove the two screws to release line and chassis f

41Chapter 4 Troubleshooting Main Procedure

42Power Circuit and Backlights Troubleshooting

43Performance Troubleshooting

44Function Troubleshooting

45Chapter 5 Connector Information Phonejack stereo PIN1. right : CEE22 typed connector PIN2. Left PIN3. Gnd

46Chapter 6 FRU (Field Replaceable Unit) list This chapter gives you the FRU (Field Replaceable Unit) listing in global configu

47Model: AL1912

48Model:AL1912 m

49Part list No. Photo Part Name Part No. 1 Hinge Cover FAAR7721000 2 Base Assy FAAR9913A00 3 Rear Cover FAAR9912000 4 Base FAAR9913000 6

- 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

509 Power Board to MB cable599: 453AAP30021 598: 453AAP30031 10 Inverter Board 599: 453AAP30021 598: 453AAP30031 11 Front Bezel FAAR9911A00 12 K

5117 Panel to MB cable DC020162600 18 Function Board 599: 454AAPE0001 598: 454AAP30011

52Chapter 7 Schematic Diagram

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- 6 - SPECIAL NOTES ON LCD MONITORS The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES  Due to the nature o

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- 7 - Table of contents Chapter 1 Monitor Feature …………………………………………………………………...………..8 INTRODUCTION...

- 8 - Chapter 1 Monitor Feature INTRODUCTION Scope This specification defines the requirements for the 19” MIC

- 9 - Height Adjust Option Option ELECTRICAL REQUIREMENTS Standard Test Conditions All tests shall be performed under the following conditions, un