Acer AL1717 Service Manual
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Acer AL1717 Service Manual

Al1717 service guide
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Acer AL1717
Service Guide
Service guide files and updates are available on the
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Please refer to
http://csd.acer.com.tw/
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  • Page 1 Acer AL1717 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 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.
  • 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.

  • 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 Chapter 2 Operating Instruction ………………………………………………..……………………..27 Chapter 3 Machine Disassembly and Replacement …………………………………..…………35 Chapter 4 Troubleshooting …………………………………………………………………………..48 Chapter 5 Connector Information …………………………………………………………………..52 Chapter 6 FRU List …………………………………………………………………………………… 53 Chapter 7 Schematic Diagram ….……………………………………………………………………..63 - 7 -...

  • Page 8: Chapter 1 Monitor Feature

    Chapter 1 Monitor Feature INTRODUCTION Scope This specification defines the requirements for the 17” 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 : 225 lux Viewing distance : 50 cm in front of LCD panel Warrn up time All specifications : 30 minutes Fully functional : 5 seconds Measuring Equipment :...

  • Page 10: Lcd Monitor General Specification

    LCD monitor General specification Panel Type: 17 “ active matrix color TFT LCD 1). LG HT17E01-A05 2). Toppoly TD1402 37.92mm (H) × 270.34mm(V) Display size: 720 × 400 (70 Hz) Display mode: 640 × 480 (60/66/70/72/75 Hz) 800 × 600 (60/70/72/75 Hz) SVGA 1024 ×...

  • Page 11: Lcd Panel Specification

    LCD Panel Specification LCD Panel Model (LG LT17E01-A05) • Display Type active matrix color TFT LCD • Resolution 1280x1024 pixels • Display Dot 1280x (RGB) x 1024 • Display Area 337.92mm(H) x 270.34mm(V) • Pixel Pitch 0.264mm(H) x 0.264mm(V) • Display Color 16M (6 bite color+FRC) •...
  • Page 12 LCD Panel Model (ToppolyTD170WGCB2) • Display Type active matrix color TFT LCD • Resolution 1280x1024 pixels • Display Dot 1280x (RGB) x 1024 • Display Area 337.92mm(H) x 270.34mm(V) • Pixel Pitch 0.264mm(H) x 0.264mm(V) • Display Color 16M (6 bite color+FRC) •...
  • Page 13 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)  Luminance with all pixels black (Gmin) Note 3) Definition of Response time: Sum of T - 13 -...
  • Page 14 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 ).
  • Page 15 Notes 5) Definition of Luminance of White : measure the luminance of white at center point. Notes 6)Definition of 5 points brightness uniformity (Measuring points: Refer to the Note 5) Bmax  Bmin Bmax: Maximum brightness Bmin: Minimum brightness Notes 7) Definition of Flicker level Flicker Voltage = ...
  • Page 16 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 =  x100 % Lmin Where Lmax is the larger value of Gbkg or Lsh , and Lmin is the smaller of the two. ♦...

  • Page 17: Input Signals

    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 •...

  • Page 18: Supported Timing

    Supported Timing FH(KHZ) SYNC TOTAL ACTIVE SYNC FRONT BACK PIXEL TIMING FV(HZ) POLARITY (DOT/LINE (DOT/LINE) WIDTH PORCH PORCH FOREQ.(MHZ (DOT/LINE) (DOT/LINE) (DOT/LINE) 640x350 31.469 25.175 VGA-350 70.087 – 640x400 24.83 – 21.05 NEC PC9801 56.42 – 640x400 31.469 – 25.175 VGA-GRAPH 70.087 640x400...
  • Page 19 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 20: 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. Power board (include: AC/DC,inverter) - 20 -...

  • Page 21: Block Diagram

    BLOCK DIAGRAM System Block Diagram LVDS Signals Including ADC, Scaling LVDS And OSD function 24LC16 24LC02B (24LC02B) TPA6019 Audio Power Amplifier with DC volume control - 21 -...

  • Page 22: Monitor Board Layout

    Monitor board layout J502 J501 LABEL Component LABEL Component 24LVC2B D-SVB 15 PIN TSU16AJ E&T 4501-19 24LC16B(24LVO2B) E&T 4501-09 MX810 J502 E&T 4501-05 APM4461 J501 E&T 4501-03 PMX10E8D50I P-TWO AFN300 30P APL1085-3.3 CE APL1117-2.5 VC U501 ATPA6019 - 22 -...
  • Page 23 Software flow chart - 23 -...

  • Page 24: Software Flow Chart

    Software Flow Chart 1. MCU initialize 2. Is the eeprom blank? 3. Program the eeprom by default values. 4. Get the PWM value of brightness from eeprom. 5. Is the power key pressed? 6. Clear all global flags. 7. Are the “<” and “>” (Adjust key) and power key. 8.

  • Page 25: 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 26: 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 27: 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 blue when monitor is on; be amber when in power saving mode. 3.

  • Page 28: Main Osd Menu

    Main OSD Menu: Outline: The description for control function : Main Menu Sub Menu Sub Menu Description Adjustment Reset Value Icon Item Icon Range Contrast Contrast from Digital-register. 0-100 Recall Cool Contrast Value Brightness Backlight Adjustment 0-100 Recall Cool Brightness Value Focus Adjust Picture Phase to reduce 0-100...
  • Page 29 User / Red Red Gain from Digital-register. 0-100 User / Green Green Gain Digital-register. 0-100 User / Blue Blue Gain from Digital-register. 0-100 English Set OSD display language to The Language will English. be set to English. 繁體中文 Set OSD display language to Tranditional Chinese.

  • Page 30: Osd Message

    Hot-Key Menu: Outline: The description for Hot-Key function : Adjustment Reset Item Operation Icon Description Range Value Volume When the OSD is closed, press Volume of Audio adjustment. The 0-100 Left or Right button will be Volume Audio will be Mute when volume=0. Hot-Key Function OSD Message: Outline:...
  • Page 31 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 adjustment items Factory menu as far as all required items are included. 1) Bright Adjust Brightness and Contrast value to Max. 2) Auto Balance Adjust each R, G, B contrast (gain) and offset.

  • Page 32: 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 33: 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 Tolerance Color Coordinate Tolerance Temp. u’...
  • Page 34 Electrical characteristics (Tamb=25°) Audio amplifier(USE Panasonic VP-7723A Audio Analyzor. ) Item Audio Input Freq. Spec. Comment Min. Typ. Max. Input Voltage(V) 0.5Vm Input Current(m A) Audio Voltage Gain 500m Vrms 1KHz 6 d B Volume Max.,load 4 Ω Frequency Response 500m Vrms 300Hz-20KH -10dB +10d B Volume Max.,load 4 Ω...

  • Page 35: Chapter 3 Machine Disassembly And Replacement

    Chapter 3 Machine Disassembly and Replacement Vibration and Shock All testing shall be done in each of three mutually perpendicular axes, referenced to the position of the system as it is in front of the user (i.e., front-to back, side-to-side, and top-to-bottom). Non-Operating The unit should suffer minimal visible cosmetic damage or damage that presents a safety hazard, or impairs the setup and operation of the system after testing.

  • Page 36: Dimension Size And Weight

    Drop Test Sequence Drop Order Drop point Drop Times Right Front Bottom Corner Right Bottom Edge Right Front Edge Front Bottom Edge Bottom Side Top Side Front Side Back Side Left Side Right Side Dimension Size and Weight Dimension size 377 (W) x 389 (H) x 163 (D) Net Weight 4.5±0.5Kg...

  • Page 37: Gap Spec

    Gap Spec. The gap & 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 LAA677-E02 Back Cover &...
  • Page 38 LAA677-E03 Base & Neck concavity 0mm ≤ C ≤ 0.8mm LAA677-E04 Top and Bottom Left and Right Back cover & Bezel step Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm 0mm ≤ D ≤ 0.8 mm - 38 -...
  • Page 39 LAA677-E05 LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. LAA677-E06 - 39 -...

  • Page 40: Tilt Base Rotation

    The distance of the LCD display unit from left side to right should not large than 4.0mm. LAA677-E07 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...
  • Page 41 GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.2 mm Swivel Title noise spec. When adjust the monitor angle, the range should be limited between -5º~ +15º and it should not have any noise. - 41 -...

  • Page 42: Machine Assembly

    Machine assembly PICTURE DESCRIPTION Connect the FPC line on panel. Assemble the chassis onto panel. Firmly secure the Panel with 4 screws. Plug two speakers to put on bezel. 1. Connect the 13P line with VK board. 2. Firmly secure the VK board with 4 screws. AA677...
  • Page 43 Connect speaker wires on VK board. Connect the bezel with monitor. To reverse the monitor. Assemble the power board onto chassis. AA677...
  • Page 44 Firmly secure the power board with 5 screws. AA677 Firmly secure the power cable with screws. AA677 Connect four panel voltage line on power board.
  • Page 45 1. Assemble the VL board onto chassis. 2. Firmly secure the VlL board with 3 screws. Firmly secure the VlL board and line with screws. Connect the FPC on VL board. Connect the power line on VL board. Connect the VL-VK line on VL board. AA677...
  • Page 46 Connect the audio line on power board. (For AR577 only) Firmly secure the line and chassis with 4 screws. Check it. AA677 Put the EMI cover on monitor.. Put the screws on EMI cover with monitor.
  • Page 47 Put the screws on EMI cover with monitor. 1. Connect the back cover with monitor. 2. Firmly secure the back cover with 4 screws. 1. Assemble the neck bracket onto neck. 2. Firmly secure the neck bracket with 4 screws. 1.

  • Page 48: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting Main Procedure Connect all of the Devices to AA677...
  • Page 49 Power Circuit and Backlights Troubleshooting...
  • Page 50 Performance Troubleshooting...
  • Page 51 Function Troubleshooting...

  • Page 52: Chapter 5 Connector Information

    Chapter 5 Connector Information Phonejack stereo PIN1. right : CEE22 typed connector PIN2. Left PIN3. Gnd : Line-in receptacle PHONEJACK STEREO 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.

  • Page 53: Chapter 6 Fru List

    Chapter 6 FRU (Field Replaceable Unit) list This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL1712. 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/).
  • Page 54 Model: AA677...

  • Page 55: Part List

    Part list A. For AA677 (Acer model:AL1717 Ams ) Photo Part Name Description Part No. M4X0.7+6P-ZK MAA20093300 Back Cover Screws M4X0.7+6P-ZK(GP) MAA2009330I AA671D(ABS94HB,MBK56) FAAA671D000 BaseASSY(FOOT) AA671D(ABS94HB,MBK56)GP FAAA671D00I M4X0.7+11P-MC Stand Screws MAA7000240I WASHER DIM 8.0 (GP) AA6732(ABS94HB MBK56) FAAA6732000 NECK COVER...
  • Page 56 AA6714(PC+ABS,MBK56) FAAA6714000 Back Cover ASM AA6714(PC+ABS,MBK56)GP FAAA671400I TPP-4+12B-MC MAB80002401 Hinge Screws TPP-4+12B-MC(GP) MAB8000240I Mainboard & 4#40UNCX12.7 PLS-WASHER MAAA0019400 Chassis 4#40UNCX12.7 PLS-WASHER(GP) MAAA001940I CG10021V920 Speaker (R/L) 2W 40HM 37.5X17X9.5mm 50mm CG10021V930 POWER SOCKET M3x0.5+6F-ZK MAA10022007 &CHASSIS M3X0.5+9F-ZK(GP) MAA1002200I Power&Inverter VP-768 LAA677 453AC930001 Board TPP2X3+10B-MC...
  • Page 57 Mainboard VL-731 LAR577Y 461AAI300E1 AA6712(PC+ABS,MCG28+MSV41) FAAA6712000 AA6712(PC+ABS,MCG28+MSV41)GP FAAA671200I AA6716(SECC,1mm) ECAA6716000 Main Frame/CHASSIS AA6716(SECC,1mm) ECAA671600I Mainboard to LCD JP577 PANEL-CTRL 30P DC020160700 Cable LCD Panel(F) HT17E12-200 17”(HYDIS) AC6V0000200 LCD Panel(B) HT17E12-200 17”(HYDIS) AC6V0000200...

  • Page 58: Interface Signals

    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). 5Vaudio: Audio power. 3). 15Vinv: Inverter power. Features Input Voltage: 100 ~ 240 ±10％Vac Input Frequency: 47 ~ 63Hz Input power consumption: Less than 1.2W @ minimum load Total output power: 40Wmax Inverter brightness adjustment: Burst mode...

  • Page 59: Electrical Specification

    2.Inverter-side connecter : SM02B-BHSS-1-TB(JST) for AA677 PIN NO. Function Comment VBLH(High voltage) VBLL(Low voltage) Electrical Specification: AC-DC Electrical specification Input Specification Item Condition Min. Typ. Max. Unit Input Voltage ----- Input Frequency ----- Input Current ----- Arms Cold Start @Vin=100Vrms Inrush Current Cold Start @Vin=240Vrms Hold Up Time...

  • Page 60: Inverter Electrical Specification

    *+15Vinv load regulation test: the +5Vdc loading at 1.5A Protection function 1) SCP: Short circuit protection must be acted on both outputs 2) OPP: Should be protected when output power consumption is within 60W ~ 75W Inverter Electrical Specification: For LPL LM170E01-TLB3 Condition Min.
  • Page 61 For TOPPOLY TD170WGCB2 Condition Min. Typ. Max. Unit Input Voltage Input Current Backlight ON/OFF Control Min. Luminance / Max. Brightness Adjust Luminance Output Voltage Vin=15V, Iout=6.5mA Vrms Brightness lamp current in 6.5mA Cd/m² Output Current(Each Vbri=0.45V~3.6V connector) Frequency @0℃ Lamp start voltage 1120 1460 Vrms...

  • Page 62: Power Consumption

    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.

  • Page 63: Chapter 7 Schematic Diagram

    Chapter 7 Schematic Diagram...

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