Acer AL1731 Service Manual

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Monitor AL1731
Service Guide
Service guide files and updates are available
on the AIPG/CSD web; for more information,
please refer to
http://csd.acer.com.tw

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Summary of Contents for Acer AL1731

  • Page 1 Monitor AL1731 Service Guide Service guide files and updates are available on the AIPG/CSD web; for more information, please refer to http://csd.acer.com.tw...
  • Page 2: Table Of Contents

    CONTENTS 1. INTRODUCTION ... 3 1.1 Scope ... 3 1.2 Description ... 3 2. ELECTRICAL REQUIREMENTS... 4 2.1 Standard Test Conditions ... 4 All tests shall be performed under the following conditions, unless otherwise specified... 4 2.2 LCD monitor General specification ... 4 2.3 LCD Panel Specification ...
  • Page 3 9.2 Storage or Shipment ... 44 10. REGULATION COMPLIANCE ... 45 10.1 This product comply to the most current revisions of following regulations: ... 45 10.2 Electrostatics Discharge (ESD)... 46 11. QUALITY AND RELIABILITY... 47 11.1 Quality Assurance ... 47 11.2 Reliability ...
  • Page 4: Introduction

    1. INTRODUCTION 1.1 Scope This specification defines the requirements for the 17” MICRO-PROCESSOR based Multi- mode supported high resolution color LCD monitor, Monitor can be directly connected to general 15 pin D-sub VGA connector and DVI-D digital connector, eliminates the requirement of optional special display card.
  • Page 5: Electrical Requirements

    2. ELECTRICAL REQUIREMENTS 2.1 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 Blue/white balance control:...
  • Page 6: Lcd Panel Specification

    Pixel pitch : Display Dot : Pixel Clock : Contrast ratio: θ = 0˚ Brightness: Response time (Tr/Tf): Hydis(20) (conditions Ta=25℃). Display color : Viewing angle: L / R U / D Luminance Uniformity : Pc interface: 1). Video : Sync : 2).
  • Page 7 • Lamp Voltage • Lamp Current • Weight • Optical Specifications The following items are measured under stable conditions. The optical characteristics should be measured in a dark room or equivalent state with the methods shown in Note(4). Measuring equipment : TOPCON BM-5A, BM-7, PHOTO RESEARCH PR650 (Inverter Freq.
  • Page 8 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.  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, measurement stable, windless...
  • Page 9 x2)(Refer to the note(1) in the page 14 for more information ). 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.
  • Page 10 Notes 6)Definition of 9 points brightness uniformity (Measuring points: Refer to the Note 5) =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. ♦...
  • Page 11 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 % Where Lmax is the larger value of Gbkg or Lsh , and Lmin is the smaller of the two. ♦...
  • Page 12: Input Signals

    2.4 Input Signals 2.4.1 Video input • Type • Input Impedance • Polarity • Amplitude • Display Color 2.4.2 Sync input • Signal • Polarity 2.4.3 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 13: Supported Timing

    Supported Timing TIMING FH(KH SYNC FV(HZ) POLARITY 640x480 31.469 VGA-480 59.94 640x480 37.861 VESA-480-72Hz 72.809 640x480 37.5 VESA-480-75Hz 720x400 31.469 VGA-400-TEXT 70.087 800x600 37.879 VESA-600-60Hz 60.317 800x600 48.077 VESA-600-72Hz 72.188 800x600 46.875 VESA-600-75Hz 1024x768 48.363 60.004 1024x768 56.476 VESA-768-70Hz 70.069 1024x768 60.023 VESA-768-75Hz...
  • Page 14 2.4.5 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. 2.4.6 Analog Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector D-sub connector Separate Sync RED VIDEO...
  • Page 15 Digital Video input Connector: DVI-D (T.B.D) Table 4-3-3. Pin assignment for DVI-D (24pin) 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 16: Controls

    Composite Video 2.5 CONTROLS A brief description and the location of all LCD Monitor functions controls and indicators: Stereo Speakers Soft Power Switch (DC Power-On Indicator) Auto Function Select and Adjustment Control Buttons Menu Impedance 75 ohm terminated Type Composite Level 0.7Vpp Impedance...
  • Page 17: Function Description

    2.5.1 Adjusting the Monitor’s Display The monitor has four function control buttons to select among functions shown on OSD menu, designed for easy user-viewing environments. OSD Function Menu To access OSD Main menu, simply press one of the Function Select control buttons, and the menu diagram will pop up on the screen as shown on Fig.
  • Page 18 OSD V-position To move the OSD image vertically up or down. Language You can choose one of the nine languages you need. Exit To exit the main menu. Utilities You can select how long the monitor waits after the last adjust of the key OSD timeout to shut off the OSD menu.
  • Page 19 OSD H-position OSD V-position Language Exit Utilities OSD timeout OSD background Source icon Exit Reset Memory recall Exit Exit Sharpness : Adjust the scale-up effect(smoother or sharper.) OSD Transparency: Adjust the transparency level of OSD. The range is from 0 to 100 scales. Comment: •...
  • Page 20: White Color Temperature

    2.6 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 Temp. Color Coordinate Cool (9300K) 0.283 Natural (6500K) 0.313 Warm (5000K)
  • Page 21: Power Supply

    2.7 POWER SUPPLY (PK10V000020, LAE LAD6019AB5 BLK 90D) (PK10V000030, LAE LAD6019AB5 IVO 90D) ( PK10V000040, LSE0218B1260 BLK 90D) (PK10V000050, LSE0218B1260 IVO 90D) 2.7.1 input Voltage Range The monitor shall operate within specification over the range of 90 to 265 VAC power supply. 2.7.2 Input Frequency Range Input power frequency range shall be from 47.5 to 63 Hz over the specified input voltage range.
  • Page 22 2.7.6 Power Connector All units shall have an IEC/CEE-22 type male power receptacle. 2.7.7 Inverter & DC/DC Board (VP-903) 1.Hydis / HT17E12-200 No. Item Input Voltage Lamp Voltage VLamp Luminance Bmax Working Frequency Fo Lamp Current ILAMP Backlight ON/OFF Control Brightness control range(positive adjustment)
  • Page 23: Plug & Play (Edid)

    Connector type: ACES 87210-0236 P3.5 or alternative Pin No. Symbol 2.8 Plug & Play (EDID) The monitor will be capable of sending a VESA standardized EDID file through the DDC (pins 12, 15 of the VGA connector). Descripition High Voltage Low Voltage...
  • Page 24: Audio Technical Specification

    2.9 Audio Technical specification 2.9.1 General Description: Output power Total harmonic distortion Input signal sensitivity Input impedance Frequency response range Difference of L and R output 2.9.2 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...
  • Page 25: Vl-903 Display Control Board

    3. VL-903 DISPLAY CONTROL BOARD 3.1 Description The VL-903 display control board is design to directly convert the analog RGB signals from standard VGA display card to optimum LCD timing signals so as to construct a high display quality LCD monitor. 3.2 Features •...
  • Page 26: Block Diagram

    3.3 BLOCK DIAGRAM...
  • Page 27: Connector Locations

    3.4 Connector Locations 3.5 Connector Type Location Type 24P Female V/DVI-D 15P Female V/D-Sub 4300-04 98210-4011 4500-09 4300-05 CN10 4300-08 Maker Number of pins Foxconn E&T E&T E&T E&T E&T E&T...
  • Page 28: Connector Pin Assignment

    3.6 Connector pin assignment 3.6.1 CN2 Pin NO. Signal R-Video G-Video B-Video N. C. Ground Ground Ground Ground 5VCC PCDETECT 3.6.2 CN5 Terminal No. Symbol 36,37,38 TXE0- TXE0+ TXE1- TXE1+ TXE2- TXE2+ TXECLK- TXECLK+ TXE3- TXE3+ TXO0- TXO0+ TXO1- TXO1+ TXO2- TXO2+ TXOCLK-...
  • Page 29 3.6.3 CN8 Pin NO. Signal 3.6.4 CN6 Pin NO. Signal +12 V BKLON BRI_ADJ Audio GND Audio VDD 3.6.5 CN3 Pin NO. Signal +5 V Comment Audio Left + Channel Output Audio Left – Channel Output Audio GND Audio Right + Channel Output Audio Right - Channel Output Comment 12V Power Input...
  • Page 30 3.6.6 CN10 Pin NO. Signal LED-Y LED-G KEY-POWER KEY-AUTO KEY-MENU KEY-UP KEY-DOWN 3.6.7 CN1 Digital Video input Connector: DVI-D Pin-Assignment of DVI-D(24 pin) connector 1 TX2- 2 TX2+ 3 Shield (TX2 / TX4) 11 Shield (TX1 / TX3) 19 Shield (TX0 / TX5) 4 NC 5 NC 6 DDC-Serial Clock 14 -5V Power *)
  • Page 31: Vk-903 Function Control Key Board

    KEY-POWER KEY-AUTO KEY-MENU KEY-UP KEY-DOWN Maker Number of pins E&T E&T ACER ACER Comment Audio Left + Channel Output Audio Left – Channel Output Audio GND Audio Right + Channel Output Audio Right - Channel Output Comment Power saving mode...
  • Page 32: Switch Definition

    4.5 Switch definition Location Definition S1, S2 Power ON/OFF Auto Adjusting and Input Mode selection Function selection Enable Function select and Adjust UP Function select and Adjust Down 4.6 LED definition Location Definition Blue for ON mode; Yellow for OFF mode; yellow for Power Saving mode; Dark for DC power OFF mode.
  • Page 33: Troubleshooting

    5. TROUBLESHOOTING 5.1 Main Procedure...
  • Page 34 5.1.1 Power Circuit Troubleshooting...
  • Page 35 5.1.2 Backlights Troubleshooting...
  • Page 36 5.1.3 Performance Troubleshooting...
  • Page 37 5.1.4 Function Troubleshooting...
  • Page 38: Mechanical Requirements

    6. MECHANICAL REQUIREMENTS 6.1 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).
  • Page 39: Dimension Size And Weight

    6.3 Dimension Size and Weight Top and Bottom Back cover & Bezel concavity 0.5mm ≤ A ≤ 1.0 mm LAM737-E01 Back Cover & Bezel Step 0.65mm ≤ B ≤ 1.2mm Left and Right Back cover & Bezel concavity 0.5mm ≤ A ≤ 1.0 mm LAM737-E02 LAM737-E03...
  • Page 40 6.3.1 LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. LAM737-E04 The distance of the LCD display unit from left side to right should not large than 4.0mm. 0 ≤ E-F ≤ 4 LAM737-E05...
  • Page 41: Tilt Base Rotation

    6.4 Tilt Base Rotation Tilt up 20 +0°/- 2°, down 5 ±1.5° 6.5 Plastic Material Front Bezel PC+ABS Back Cover ABS 94HB The Others ABS 94HB 6.6 GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.2 mm 7.
  • Page 42: Polarity

    7.2 Polarity : + / - 7.3 Repetition Frequency of the impulse : 5 KHz. ± 7.4 Rise-Time : 5ns 7.5 Impulse Duration: 50 nS 7.6 Relation to Power Supply: Asynchronous 7.7 Burst Duration: 15 ms 7.8 Burst Period: 300 ms 7.9 Climatic Conditions: - Ambient Temperature: 15°C to 35°C - Relative Humidity: 45% to 75%...
  • Page 43 WAVESHAPE...
  • Page 44: Power Line Surge Test (Iec 61000-4-5 Surge)

    8. Power Line Surge Test (IEC 61000-4-5 Surge) 8.1 Climatic Condition The climatic conditions shall be within the following ranges: 8.1.1 Ambient Temperature: 15 8.1.2 Relative Humidity: 10% to 75% 8.1.3 Atmospheric Pressure 86kPa(860 mbar)to 106kPa (1060mbar) Note: The temperature and relative humidity should be recorded in the test report. 8.2 Test Conditions: 8.2.1 Wave-shape of the current surge: (refer to IEC 61000-4-5) Open circuit voltage:...
  • Page 45: Enviroment Requirement

    9. ENVIROMENT REQUIREMENT 9.1 Operating Temperature Relative Humidity Altitude 9.2 Storage or Shipment Temperature Relative Humidity Altitude 9.2.1 TEST PROCEDURE: • Put in temperature chamber under 60°C • Back to room temperature • Put in temperature chamber under -20°C • Back to room temperature •...
  • Page 46: Regulation Compliance

    10. REGULATION COMPLIANCE 10.1 This product comply to the most current revisions of following regulations: UL/CUL {UL 1950/ CSA C22.2 NO950} EN 60950/CB Scheme MPR 1990:8 MPR 1990:10 EK1-ITB200 NUTEK/EPA TCO 1999 (option) TUV/GS FCC 47 CFR, Chapter 1, Subchapter A, Part 15, Subpart B CISPR 22 CE LVD Directive (73/23/EEC) CE EMC Directive (89/336/EEC)
  • Page 47: Electrostatics Discharge (Esd)

    10.2 Electrostatics Discharge (ESD) This test follow the IEC 61000-4-2 Discharge Voltage Level : Criteria Contact Discharge (KV) Class C Class B Class A Class A : Temporary degradation or loss of function or performance which requires operator Intervention or system reset. Class B : Temporary degradation or loss of function or performance which is self- recoverable Class C : Normal performance within the specification limits...
  • Page 48: Quality And Reliability

    Ambient temperature : 15°C to 35°C Relative humidity 11. QUALITY AND RELIABILITY 11.1 Quality Assurance Unless otherwise specified in this specification or the applicable purchase order, the supplier shall be responsible for maintaining a statistical process program or performing inspections that are sufficient to assure that the parts supplied meet the requirements specified herein.
  • Page 49: Part List

    12. Part List Picture Partname Descrtiption BACK COVER ASSY BACK COVER ASSY BEZEL ASSY BEZEL ASSY CHASSIS CHASSIS EMI COVER EMI COVER HINGE ASSY HINGE ASSY KEY BOARD KEY BOARD Part No. 60.L08V2.005 60.L08V2.004 60.L08V2.001 60.L08V2.002 34.L08V2.001 55.L08V2.001...
  • Page 50 MAIN BOARD MAIN BOARD 55.L08V2.003 NECK NECK 60.L08V2.003 POWER BOARD POWER BOARD 55.L08V2.002 STAND BASE ASSY STAND BASE ASSY 60.L08V2.006...
  • Page 51: Appendix A: Display Unit Assembly

    Appendix A: DISPLAY Assembly...
  • Page 53 R/N:ydr6069j - D1H ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # LAM737Y0001 LAM737Y ABO 1 GA050000400 POWER CORD SET 2 DC190021010 CB ASY 3 DC190021020 CB ASY 4 DC190021030 CB ASY 5 DC190021040 CB ASY...
  • Page 55 R/N:ydr6069j - D1H ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 58273030001 DIS UNIT ABO 1 AC6V0000200 LCD MODU 2 DA3M737V010 FPC 3 DC020155000 H-CON SET 4 DC020155400 H-CON SET 5 CG10021V600 SPK SET...
  • Page 56 R/N:ydr6069j - D1H ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # X66ANN30001 MEC PACKING ABO 1 FJAM7316000 EPS FOAM(L) 2 FJAM7317000 EPS FOAM(R) 3 EBAM732A000 STAND BASE ASSY 13.1.11.4 Material List by Location QUANTITY REQUIRED...
  • Page 57 Appendix B: P.C.B.A Assembly...
  • Page 68 R/N:ydr6068j - D1H ================================================================================================================== ================== REV. 0B C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 461AA030001 FIRMWARE CTRL/B # 461AA030021 FIRMWARE CTRL/B 1 451AA030001 PCBA CTRL/B 2 BEAM737Y000 EDID 3 BEAM939F000 EDID 4 BFAM73Y0000 FIRMWARE...
  • Page 69 R/N:ydr6068j - D1H ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 451AA030001 PCBA CTRL/B # 451AA030011 PCBA CTRL/B # 451AA030021 PCBA CTRL/B 1 431AA030001 SMT CTRL/B 2 431AA030011 SMT CTRL/B 3 431AA030021 SMT CTRL/B...
  • Page 70 R/N:ydr6068j - D1H ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 431AA030001 SMT CTRL/B # 431AA030011 SMT CTRL/B # 431AA030021 SMT CTRL/B 1 DA4M939V010 PCB 2 SA001310000 S IC 3 SA010840210 SM IC...
  • Page 71 R/N:ydr6068j - D1H ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- 37 SD0132002T8 CHIP RES. 38 SD0132201T1 CHIP RES. 39 SD0133301T1 CHIP RES. 40 SD013430000 CHIP RES.
  • Page 72 R/N:ydr6068j - D1H ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- 61 SE092334K00 S CER CAP 62 SM010013700 S SUPPRE 63 SM010017500 S SUPPRE 64 SM01V000200 S SUPPRE_ 65 SP02E002100 S W-CONN 13.1.11 Material List by Parts-no...
  • Page 74 R/N:ydr6068j - D1H ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 454AA030001 PCBA KEY/B 1 BC40HZ6B2T7 ZENER DIODE 2 BC5K2093000 LED 3 DA1M939V010 PCB 4 DC030040000 WAFER CONN 5 DC03E000400 WAFER CONN.
  • Page 76 R/N:ydr6068j - D1H ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 455AA030001 PCBA D/D-INV.BOARD 1 435AA030001 SMT D/D-INV.BOARD 2 BC1SB1401T0 DIO 3 CA001EMJ000 CER CAP 4 CA056FMJ000 CER CAP 5 CB01006M010 ELE CAP 6 CB10012M5T0 ELE CAP...
  • Page 77 R/N:ydr6068j - D1H ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 435AA030001 SMT D/D-INV.BOARD 1 DA2M939P010 PCB 2 SA009700000 S IC 3 SA025760000 S IC 4 SB544100008 SM TRANSISTOR 5 SB570020105 SM TRANSISTOR 6 SB944350001 SM TRANSISTOR...
  • Page 78 R/N:ydr6069j - D1H ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # X66ANP30001 MEC PARTS ABO 1 EBAM7321000 NECK 2 ECAM7313000 CHASSIS 3 ECAM7314000 EMI_COVER 4 ECAM7331000 HINGE ASSY 5 FAAM7311A00 BEZEL ASSY 6 FAAM7312A00 BACK_COVER ASSY...

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