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Acer V173 Service Manual

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Acer V173
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 -

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  • Page 1 Acer V173 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 © 2008 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.
  • 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 …………………………………..…………42 Chapter 4 Troubleshooting …………………………………………………………………………..56 Chapter 5 Connector Information …………………………………………………………………..59 Chapter 6 FRU List …………………………………………………………………………………… 60 Chapter 7 Schematic Diagram ….……………………………………………………………………..70 - 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. 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...
  • Page 10: Lcd Monitor General Specification

    LCD monitor General specification (AUO M170EG01(VD) General specification - 10 -...
  • Page 11 Optical specifications - 11 -...
  • Page 12 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 - 12 -...
  • Page 13 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 14 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 15 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 16: Input Signals

    Panel Relative Humidity JP777-E02 Input Signals Video input • DVI (option) 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 17: 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 18 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 19 Digital Video input Connector: DVI-D (option) Table 4-3-3. Pin assignment for DVI-D (24pin) connecto Pin – Assignment of DVI –D connector : TX2- TX1- 17 TX0- TX2+ TX1+ 18 TX0+ Shield (TX2 / TX4) Shield (TX1 / TX3) 19 Shield (TX0 / TX5) 20 NC 21 NC DDC-Serial Clock...
  • 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 24LC16 24LC02B (24LC02B) - 21 -...
  • Page 22: Monitor Board Layout

    Monitor board layout 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: Controls

    Chapter 2 Operating Instructions CONTROLS Control panel (monitor front panel) Power LED, will be blue when monitor is on; be amber when in power saving mode. Power ON/OFF switch, push to ON and push to OFF. (toggle switch) Function change or Adjust increase. Function change or Adjust decrease.
  • Page 28: Main Osd Menu

    P/X Series OSD behave When user press “MENU” button on front bezel A. Acer eColor Management If selected to “Acer eColor Management” item, will appear the Acer eColor” OSD B. USER If selected to “USER” item, will appear the Standard OSD I.
  • Page 29 The description for control function : A. Acer eColor Management Main Menu Sub Menu Sub Menu item Description icon icon User mode User defined. Settings can be fine-tuned to suit any situation Optimal balance of brightness and contrast prevent Text mode eyestrain.
  • Page 30 Main Menu Sub Menu icon Sub Menu item Description icon Adjust the horizontal position. H. Position (available in Analog mode only) Adjust the vertical position. V. Position (available in Analog mode only) Warm Set the color temperature to warm white. Cool Set the color temperature to cool white.
  • Page 31 Show the resolution, H/V frequency and input port of Information current input timing. Clear each old status of Auto- Reset configuration and set the color temperature to Cool. Exit Save user adjustment and OSD disappear. - 31 -...
  • Page 32: Operation Instructions

    Acer eColor Management Step 1: Press “ Key” to open the Acer eColor Management OSD and access the scenario modes Step 2: Press “<” or “>” to select the mode Step 3: Press “Auto Key” to confirm the mode and run Auto Adjust...
  • Page 33: Osd Message

    Audio Volume control:(option) 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 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 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 35: 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 36: 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 37 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 38 SOP for Factory Mode 1. Connect D-SUB cable and Power cord according to the graphic, and input power and signal 2. Turn on the monitor by clicking the power key, and show the normal image 4. Press the “Function -”key, “Function +” key & “Power” key simultaneously and Factory Model is got into as below - 38 -...
  • Page 39 SOP for ISP (Firmware upgrade) 1. Operation system & Connection a. PC (Win XP), b. ISP tool, c. VGA cable, d. RS232 cable b. Turn on the power of monitor. VGA cable shall be connected to ISP out port. Install ISP BD driver on PC system Click the ISP driver program(port95nt.exe) b.
  • Page 40 3. Open the ISP program on PC system Click the ISP program (RTD2120_ISP_vXX.exe) 4. Load F/W files (There are two F/W files, XXX_code.hex&xxx_data.hex) a. Hold on the K/B“Ctrl”Key, b. Click to load F/W file( Ex:C:\Code\Acer \Acer_code.hex; c. Click to load F/W file (Ex:C:\Code\Acert\Acer_data.hex; - 40 -...
  • Page 41 d. Click to update F/W. e. The ISP process would be finished after the menu occur the “PASS” message. 5. We shall hold on the K/B "Ctrl" key before we want to use below functions. (1). Load F/W files。 (2). Config Function (3).
  • Page 42: Chapter 3 Machine Disassembly And Replacement

    Chapter 3 Machine Disassembly and Replacement Disassembly Procedure Disassemble the stand neck and base 1. Push release button and remove the base. 2. Remove the hinge cover. 3. Remove the four screws to release the hinge. 4. Remove the stand neck Disassemble the chassis 1.
  • Page 43 Disassemble the main board and the power board 1. Remove the five screws to release line from Chassis 2. Disassemble audio line from VL board and power board (option). 3. Disassemble power line from VL board and power board. 4. Disassemble speaker line from VL board. 5.
  • Page 44: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting Main Procedure Connect all of the Devices to AA677...
  • Page 45 Power Circuit and Backlights Troubleshooting...
  • Page 46 Performance Troubleshooting...
  • Page 47 Function Troubleshooting...
  • Page 48: Chapter 5 Connector Information

    Chapter 5 Connector Information Phonejack stereo PIN1. right : CEE22 typed connector PIN2. Left PIN3. Gnd : Line-in receptacle Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector PIN NO. Separate Sync RED VIDEO GREEN VIDEO BLUE VIDEO...
  • Page 49 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 52 Part list Photo Part Name Description Part No. BEZEL ASSY(V173) AV5701 ABS 94HB MBK94 GP APAV570110I Base Assy AV5713 ABS 94HB MBK94 GP APAV571310I APAV570300I BACK COVER APAV570310I ASSY(Analog) BACK AV5203 ABS 94HB MBK94 GP APAV570320I COVER ASSY(Dual) APAV570330I BUTTON...
  • Page 53 LED LENS AV5741 PC CLEAR GP FCAV574100I AV574C SUS301 1/2H T=0.15mm GP EEAV574C00I NECK EMI PLATE AV5749 Silicon 20X10X2T mm GP FHAV574900I RUBBER M3X0.5+4I-NI(GP) SCREW FCAV574100I M3X0.5+4I-NI(NL) SCREW MAA0000320I TPB-2-2.8I (ZK) SCREW MAB0000340I 4#-40UNCX12.7 WASHER D=5.0 SCREW SPECIAL MAAA001933I MAB0000540I SCREW MAB0000540I M4X0.7+8F-NI GP...
  • Page 54 panel M170EG01(VD)-RR AC6VT1703R2 Function Board VK-948 454AEN30L11 2W 6OHM C4020A R-2P CG10021V22I Speaker (R/L) 2W 6OHM C4020A L-3P CG10021V23I Power& Inverter Board VP-949 LAV877TA_7.5mA 453ADS30L51 Main board VL-949 LAV578TA 461AG430L22 Main board VL-951 LAV878TA 461AG630L21 Main board VL-948 LAV577TA 461AG330L21 Main board VL-950 LAV877TA 461AG530L21...
  • Page 55 Main board to LCD Cable 30P G P1PAD0.65 30CM NBX3010710I...
  • Page 56: Power/Inverter 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). 5Vaudio: Audio power. 3). 19Vinv: Inverter power. Features Input Voltage: 100 ~ 240 ±10%Vac Input Frequency: 47 ~ 63Hz Input power consumption: Less than 1W @ minimum load Total output power: 40Wmax Inverter brightness adjustment: Burst mode...
  • Page 57: Electrical Specification

    2.Inverter-side connecter : ACES 88451-020N-01 2P3.5 LOCK or equivalent. 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...
  • Page 58 *+19Vinv 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 ~ 55W Inverter Electrical Specification: For 17” Panel Condition Min.
  • Page 59 SAFETY Leakage Current: 0.25mA @ 100Vac 3.5mA @ 264Vac Insulation Resistance: more than 3M ohms while withstanding a voltage of 500Vac Hi-Pot: 3Kvac with using 3mA cut off current...
  • Page 60: 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 61: Schematic Diagrams

    Chapter 7 Schematic Diagram...