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AL1931(AM939) TFT LCD MONITOR
CONTENTS
1. INTRODUCTION .......................................................................................................................................... 2
1.1 Scope.................................................................................................................................................... 2
1.2 Description ............................................................................................................................................ 2
2. ELECTRICAL REQUIREMENTS................................................................................................................. 3
2.1 Standard Test Conditions ..................................................................................................................... 3
2.2 LCD monitor General specification....................................................................................................... 3
2.3 LCD Panel Specification ....................................................................................................................... 4
2.4 Input Signals ....................................................................................................................................... 11
2.5 CONTROLS ........................................................................................................................................ 16
2.6 White Color Temperature ................................................................................................................... 20
2.7 POWER SUPPLY ............................................................................................................................... 21
2.8 Plug & Play (EDID) ............................................................................................................................. 23
2.9 Audio Technical specification ............................................................................................................. 24
3. VL-903 DISPLAY CONTROL BOARD...................................................................................................... 25
3.1 Description .......................................................................................................................................... 25
3.2 Features.............................................................................................................................................. 25
3.3 BLOCK DIAGRAM .............................................................................................................................. 26
3.4 Connector Locations........................................................................................................................... 27
3.5 Connector Type .................................................................................................................................. 27
3.6 Connector pin assignment .................................................................................................................. 28
4. VK-903 Function Control key Board....................................................................................................... 31
4.1 Description .......................................................................................................................................... 31
4.2 Connector and Switch Locations ........................................................................................................ 31
4.3 Connector type ................................................................................................................................... 31
4.4 Connector pin Assignment.................................................................................................................. 31
4.5 Switch definition .................................................................................................................................. 32
4.6 LED definition...................................................................................................................................... 32
5. TROUBLESHOOTING ............................................................................................................................... 33
5.1 Main Procedure .................................................................................................................................. 33
6. MECHANICAL REQUIREMENTS ............................................................................................................. 38
6.1 Vibration and Shock............................................................................................................................ 38
6.2 Package Drop Specification ............................................................................................................... 38
6.3 Dimension Size and Weight................................................................................................................ 39
6.4 Gap Spec. ........................................................................................................................................... 39
6.5 Tilt Base Rotation ............................................................................................................................... 41
6.6 Plastic Material.................................................................................................................................... 41
6.7 GAP Spec. .......................................................................................................................................... 41
7. Power Line Transient Test (IEC 61000-4-4 Fast Transients/Burst) ..................................................... 41
7.1 Peak Voltage:...................................................................................................................................... 41
: + / -................................................................................................................................ 42
7.3 Repetition Frequency of the impulse : 5 KHz. .................................................................................... 42
7.6 Relation to Power Supply: Asynchronous .......................................................................................... 42
7.9 Climatic Conditions: ............................................................................................................................ 42
7.10 Test Procedure: .................................................................................................................................. 42
8. Power Line Surge Test (IEC 61000-4-5 Surge) ...................................................................................... 44
8.1 Climatic Condition ............................................................................................................................... 44
8.2 Test Conditions: .................................................................................................................................. 44
8.7 Display set high-resolution mode, AC input use AC 240V. ................................................................ 44
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Summary of Contents for Acer AL1931
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Page 1: Table Of Contents
AL1931(AM939) TFT LCD MONITOR CONTENTS 1. INTRODUCTION ... 2 1.1 Scope... 2 1.2 Description ... 2 2. ELECTRICAL REQUIREMENTS... 3 2.1 Standard Test Conditions ... 3 2.2 LCD monitor General specification... 3 2.3 LCD Panel Specification ... 4 2.4 Input Signals ... 11 2.5 CONTROLS ... - Page 2 9. ENVIROMENT REQUIREMENT... 45 9.1 Operating ... 45 9.2 Storage or Shipment... 45 10. REGULATION COMPLIANCE ... 46 10.1 This product comply to the most current revisions of following regulations: ... 46 10.2 Electrostatics Discharge (ESD) ... 47 11. QUALITY AND RELIABILITY... 48 11.1 Quality Assurance...
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Page 3: Introduction
1. INTRODUCTION 1.1 Scope This specification defines the requirements for the 19” 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. It also supports VESA DPMS power management and plug &... -
Page 4: 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: In the center (unless otherwise specified ) -
Page 5: Lcd Panel Specification
resolution Pixel pitch : Display Dot : Pixel Clock : Contrast ratio: θ = 0˚ typical). Brightness: (conditions= typical). Response time (Tr/Tf): FUJITSU:(15/10), SANYO:(19/6), AU:(15/10)(conditions Ta=25℃). Display color : Viewing angle: U / D Luminance Uniformity : > 75 % Pc interface: 1). - Page 6 • Sub Pixel Pitch • Pixel Pitch • Display Color • 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).
- Page 7 2.3.2 LCD Panel Model (AU M190EN02) • Display Type • Resolution • Display Area • Sub Pixel Pitch • Pixel Pitch • Display Color • Lamp Voltage • Lamp Current • Weight • Optical Specifications = 6.5mA (RMS) ITEM Contrast Ratio (Center of screen) Response Rising...
- Page 8 2.3.3 LCD Panel Model (SANYO TM190SX-70N01) • Display Type • Resolution • Display Area • Sub Pixel Pitch • Pixel Pitch • Display Color • Lamp Voltage • Lamp Current • Weight • Optical Specifications Ta = 25 ± 2°C = 8mA (RMS) ITEM Contrast Ratio...
- Page 9 *For Edge shadow will follow limit sample to check. 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, the measurement should be executed .Measurement should be executed n a stable, windless ,and dark room.30 min after lighting the back-...
- Page 10 current :13.0mA(6.5mA x2)(Refer to the note(1) in the page 14 for more information ). Environment condition :Ta=25±2°C Optical characteristics measurement setup...
- Page 11 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) =100∗ Bmax: Maximum brightness Bmin: Minimum brightness Notes 7) Definition of Flicker level Flicker Voltage = ...
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Page 12: Input Signals
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: = x100 % Where Lmax is the larger value of Gbkg or Lsh , and Lmin is the smaller of the two. ♦... - Page 13 • 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.
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Page 14: 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 15 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 16 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.
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Page 17: 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 18: 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 19 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 OSD timeout the key to shut off the OSD menu.
- Page 20 OSD H-position OSD V-position Language Exit Utilities OSD timeout OSD background You can select opaque or translucent to change 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.
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Page 21: 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) 0.281 Natural (6500K) 0.313 Warm (5000K) -
Page 22: Power Supply
2.7 POWER SUPPLY (PK10V000000, LAE LAD6019AB5 BLK) (PK10V000010, LAE LAD6019AB5 IVO) (PK100005000, LSE9901B1260 BLK) (PK100005010, LSE9901B1260 IVO) 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 23: Power Connector
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. Fujustu /FLC48SXC8V-10 (Condition:Ta=25 ) Item Input Voltage Lamp Voltage Luminance Brightness adjustable range Working Frequency Lamp Current Backlight ON/OFF Control Brightness control range(positive adjustment) -
Page 24: Pin Assignments
2. Pin Assignments 2-1 Output Connector#1 (J802 / E&T 4500-09 / 9P P2.0) Pin No. 2-2. Output Connector#2 (for CCFLs, J940,J980,J941,J981) Connector type: ACES 88225-0211 P8.0 or alternative Pin No. 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). -
Page 25: Audio Technical Specification
2.9 Audio Technical specification 2.9.1 General Description: Output power Total harmonic distortion : Less than 1 % (except speakers 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) -
Page 26: 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 27: Block Diagram
3.3 BLOCK DIAGRAM... -
Page 28: 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 29: 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 30 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 31 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) 4 NC 5 NC 6 DDC-Serial Clock 14 -5V Power *) 7 DDC-Serial Data 15 Ground (+5V) 8 No Connect *)In case, the power of the PC unit is switched off and the power the monitor is...
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Page 32: 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 33: 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;... -
Page 34: Troubleshooting
5. TROUBLESHOOTING 5.1 Main Procedure... -
Page 35: Power Circuit Troubleshooting
5.1.1 Power Circuit Troubleshooting... - Page 36 5.1.2 Backlights Troubleshooting...
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Page 37: Performance Troubleshooting
5.1.3 Performance Troubleshooting... -
Page 38: Function Troubleshooting
5.1.4 Function Troubleshooting... -
Page 39: 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). 6.1.1 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 40: Dimension Size And Weight
6.3 Dimension Size and Weight Dimension size Net Weight Gross Weight 6.4 Gap Spec. 6.4.1 The step between front bezel and back cover shall be within specification. Top and Bottom Back cover & Bezel concavity 0.3mm ≤ A ≤ 0.8 mm Back Cover &... - Page 41 6.4.2 LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. LAM939-E03 The distance of the LCD display unit from left side to right should not large than 4.0mm. LAM939-E03...
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Page 42: Tilt Base Rotation
6.5 Tilt Base Rotation Tilt up 25 ± 2°/ down 5 ±2° 6.6 Plastic Material Front Bezel ABS 94HB Back Cover ABS 94HB The Others ABS 94HB 6.7 GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.5 mm 7. -
Page 43: 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 44 WAVESHAPE...
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Page 45: 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 46: 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 Time:24 hours • Back to room temperature • Put in temperature chamber under -20°C Time:24 hours •... -
Page 47: 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 ISO 9241-3: ISO 9241-7: ISO 9241-8: NUTEK/EPA TCO 1999 (option) TUV/GS FCC 47 CFR, Chapter 1, Subchapter A, Part 15, Subpart B CISPR 22... -
Page 48: Electrostatics Discharge (Esd)
10.2 Electrostatics Discharge (ESD) This test follow the IEC 61000-4-2 Discharge Voltage Level : Criteria Contact Discharge (KV) Class Class Class Class Temporary degradation or loss of function or performance which requires Class B : Temporary degradation or loss of function or performance which is self- recoverable Class Normal performance within the specification limits... -
Page 49: Quality And Reliability
Ambient temperature 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 50: Appendix A: Parts Lists
APPENDIX A: PARTS LISTS... - Page 51 A. FRU Board A-1 454AA030001 –PCBA Key Board (VK-903)
- Page 52 A-2 461AA030001–Firmware CTRL Board (VL-903)
- Page 53 A-3 455AA030001–PCBA D/D-INV Board (Vp-903)
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Page 54: Appendix B: Display Assembly
Appendix B: DISPLAY Assembly... - Page 56 ========================================================================================================================= ========== C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # LAM939F0001 LAM939F ABO 1 GA050000400 POWER CORD SET 2 DC190021010 CB ASY 3 DC190021020 CB ASY 4 DC190021030 CB ASY 5 DC190021040 CB ASY 6 PK100005000 AC ADAP...
- Page 57 ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # X66AN430001 MEC PACKING ABO 1 FJAM9318000 EPS FOAM(L) 2 FJAM9319000 EPS FOAM(R) 3 EBAM9321000 STAND BASE(ASSY) QUANTITY REQUIRED SPECIFICATION ------------------ --------------------------------------...
- Page 59 ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 58290530001 DIS UNIT ABO 1 AC600022710 LCD MODU 2 DA3M939V000 FPC 3 DC020154800 H-CON SET 4 DC020154900 H-CON SET 5 DC020155000 H-CON SET 6 DC020200420 H-CON SET...
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Page 60: Appendix C: Pcba Assembly
Appendix C: PCBA Assembly... - Page 62 ================================================================================================================== ================== REV. 0B C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 454AA030001 PCBA KEY/B 1 BC40HZ6B2T7 ZENER DIODE 2 BC5K2093000 LED 3 DA1M939V002 PCB 4 DC030040000 WAFER CONN 5 DC03E000400 WAFER CONN.
- Page 73 ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 461AA030001 FIRMWARE CTRL/B 1 451AA030001 PCBA CTRL/B 2 BEAM939F000 EDID 3 BFAM93F0000 FIRMWARE ================================================================================================================== ================== REV.
- Page 74 ================================================================================================================== ================== REV. 0B C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 431AA030001 SMT CTRL/B 1 DA4M939V002 PCB 2 SA001310000 S IC 3 SA010840210 SM IC 4 SA011170210 S IC 5 SA011170300 S IC 6 SA023140000 S IC...
- Page 75 ========================================================================================================================= =========== C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- 35 SD0133301T1 CHIP RES. 36 SD013430000 CHIP RES. 37 SD0134701T8 CHIP RES. 38 SD0134702T5 CHIP RES. 39 SD0135601T7 CHIP RES. 40 SD013750AT3 CHIP RES.
- Page 76 ========================================================================================================================= =========== C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- 59 SP02E002100 S W-CONN QUANTITY REQUIRED SPECIFICATION ------------------ -------------------------------------- E&T 98210-4011 40P End of Report DWG.NO. 451AA0 REMARKS - CN5 REV.
- Page 78 ================================================================================================================== ================== REV. 0B 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 CB10012M5T0 ELE CAP 6 CB22004M200 CAPACITOR...
- Page 79 ================================================================================================================== ================== REV. 0B C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 435AA030001 SMT D/D-INV.BOARD 1 DA2M939P002 PCB 2 SA025760000 S IC 3 SA097000000 S IC 4 SB544100008 SM TRANSISTOR 5 SB570020105 SM TRANSISTOR 6 SB944350001 SM TRANSISTOR...
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