Acer V193 Service Manual
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Acer V193 Service Manual

Acer computer monitor
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Acer V193
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 V193 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 INTRODUCTION...8 ELECTRICAL REQUIREMEENTS...9 MONITOR BLOCK DIAGRAM ... 21 BLOCK DIAGRAM ... 24 MONITOR BOARD LAYOUT ... 25 SOFTWARE FLOW CHART ... 27 GENERAL INSTRUCTIONS ... 28 SYSTEM INSTALLATION ... 29 POWER/INVERTOR BOARD ... 34 ELECTRICAL SPECIFICATION...

  • Page 8: Chapter 1 Monitor Feature

    Monitor Feature INTRODUCTION Scope This specification defines the requirements for the 19” 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 Display Dot: Pixel Clock: θ Contrast ratio: = 0˚ Brightness: Response time (Tr/Tf): Display color: Viewing angle(CR>10): Luminance Uniformity: 1280 x (RGB) × 1024 25.2 – 135.0MHz LG: 500:1 (typical) Samsung: 700:1 (typical) LG: 250 (typical) Samsung: 300 (typical) Ta=25°C, 2/10ms (typical) Samsung Ta=25°C, 1.7/6.3ms (typical) Ta=25°C, 5.6/2.4ms (typical)

  • Page 11: Lcd Panel Specification

    LCD Panel Specification LCD Panel Model ( LM190E08-TLL1 General specification 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) ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ 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 13 Environment condition :Ta=25±2°C 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% Bmin - 13 -...
  • Page 14 Samsumg ⎯⎯⎯⎯⎯⎯⎯ 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 15 The calculation for shadowing is made from the 2 luminance measurements Gbkg and Lsh, as follows: Lmax -Lmin = ⎯⎯⎯⎯⎯⎯ x100 % 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 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 17: 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 –...

  • Page 18: Support Modes

    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 D-sub connector Digital Video Input Connector : DVI – D (T.B.D) Table 2.4.6 Pin assignment for DVI – D Connector: Pin – Assignment of DVI –D connector : 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.

  • 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. The Adapter will provide thr 12V DC-power to inverter/ power board.

  • Page 21: Block Diagram

    BLOCK DIAGRAM System Block Diagram - 21 -...

  • Page 22: Monitor Board Layout

    Monitor board layout LABEL Component UZ1084L-33 RTD2025/2045/2525/2545 U501 RTD2120 ATPA6019 - 22 - LABEL Component E&T 4500-08/4500-06 E&T 4501-19 D-SVB 15 PIN P-TWO AFN300 30P CN201 E&T 4500-03 CN500A E&T 4500-02 CN500B E&T 4500-03 CN501 CN502 E&T 4500-03...

  • Page 23: Software Flow Chart

    Software flow chart - 23 -...

  • Page 24: 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 25: 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 26: 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). 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 27: Electrical Specification

    2.Inverter-side connecter : PIN NO. Function Electrical Specification: AC-DC Electrical specification 3.4.1.1 Input Specification Item Input Voltage Input requency Input Current Inrush Current Hold Up Time Turn on time Efficiency Consumption ACES 88451-020N-01 2P3.5 LOCK or equivalent. Comment VBLH(High voltage) VBLL(Low voltage) Condition -----...
  • Page 28 3.4.1.2 AC-DC Output Specification Tolerance Output oltage +5Vdc +5 /-3 % +19Vinv +35/-5 % ±5% +5Vaudio Measured at DC output terminals which are Ripple paralleled with a 10uf Ecap &0.1uf Ceramic cap. Noise 2.Band width is limited within 20MHz 50~100% or 100~50% Dynamic Load load change of any DC Regulation...

  • Page 29: Safety

    Striking Time Lamp Current Balance Efficiency *.The open lamp voltage is testes at output connector terminal 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 Vin=19V - 29 - ±0.35...

  • Page 30: 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 31: Chapter 2 Operating Instruction

    Chapter 2 Operating Instructions CONTROLS Control panel (monitor front panel) Note: 1. Press button 3 (plus +) or 4 (minus -) at the same time can activate “Volume Adjustment”. 2. When OSD Menu is off, press button 6 (auto) at the same time can activate “Auto Adjustment” immediately. 3.

  • Page 32: 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 33 The description for control function : A. Acer eColor Management Main Menu Sub Menu icon icon B. USER. Main Menu Sub Menu icon icon Sub Menu item User mode User defined. Settings can be fine-tuned to suit any situation Optimal balance of brightness and contrast prevent Text mode eyestrain.
  • Page 34 Main Menu Sub Menu icon icon Sub Menu item 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 35 Information Reset Exit - 35 - Show the resolution, H/V frequency and input port of current input timing. Clear each old status of Auto- configuration and set the color temperature to Cool. Save user adjustment and OSD disappear.

  • Page 36: 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 37: Osd Message

    Audio Volume control:(option) Outline: The description for Hot-Key function : Item Operation Volume When the OSD is closed, press Left or Right button will be Volume Hot-Key Function 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.
  • Page 38 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 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: Electrical Characteristics (Tamb=25°)

    Electrical characteristics (Tamb=25°) Audio amplifier(USE Panasonic VP-7723A Audio Analyzor. ) Item Audio Input Input Voltage(V) Input Current(m A) Audio Voltage Gain 500m Vrms 1KHz Frequency Response 500m Vrms 300Hz-20KH Signal to Noise ratio 500m Vrms 1KHz Total harmonic distortion 500m Vrms 1KHz Cross talk 500m Vrms 1KHz Output Watt.
  • Page 42 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...
  • Page 43 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 44 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;...
  • Page 45 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 46: 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 47 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 48: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting Main Procedure...

  • Page 49: Troubleshooting

    Power Circuit and Backlights Troubleshooting...

  • Page 50: Performance Troubleshooting

    Performance Troubleshooting...

  • Page 51: Function Troubleshooting

    Function Troubleshooting...

  • Page 52: Chapter 5 Connector Information

    Connector Information Phonejack stereo PIN1. right : CEE22 typed connector PIN2. Left PIN3. Gnd Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector : Line-in receptacle PIN NO. Chapter 5 Separate Sync RED VIDEO GREEN VIDEO BLUE VIDEO...

  • Page 53: 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 56: Part List

    Part list Photo BEZEL ASSY(V193) BACK COVER ASSY COVER ASSY (DUAL) CHASSIS(ANALOG) PANEL BRACKET_L PANEL BRACKET_R CHASSIS SUPPORT Part Name AV6901 ABS 94HB MBK94GP Base Assy AV6905 ABS 94HB MBK94 GP (ANALOG) BACK AV5203 ABS 94HB MBK94 GP BUTTON AV5731 MBK94 ABS 94HB GP...
  • Page 57 HINGE COVER(L/R) SCREW SPECIAL TAPPING SCREW panel Function Board AV5747 MBK94 ABS 94HB GP LED LENS AV5741 PC CLEAR GP M3X0.5+4I-NI(GP) SCREW M3X0.5+4I-NI(NL) SCREW TPB-2-2.8I (ZK) SCREW 4#-40UNCX12.7 WASHER D=5.0 MAB0000540I SCREW M4X0.7+8F-NI GP SCREW TPB-4+12I-ZK(GP) LM190E08-TLL1 19"A VK-948 FAAV574700I FCAV574100I FCAV574100I MAA0000320I...
  • Page 58 Speaker (R/L) Power& Inverter Board VP-949 LAV699GA_7.5mA Main board Main board Main board Main board Main board to LCD Cable 2W 6OHM C4020A R-2P 2W 6OHM C4020A L-3P VL-949 LAV698GA VL-951 LAV898GA VL-948 LAV699GA VL-950 LAV899GA 30P G P1PAD0.65 25CM CG10021V22I CG10021V23I 453ADS30L11...

  • Page 59: Chapter 7 Schematic Diagram

    Chapter 7 Schematic Diagram...

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