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Acer AL1911 Manual

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AL1911 TFT LCD MONITOR
CONTENTS
1. INTRODUCTION................................................................................................................................ 3
1.1 Scope ............................................................................................................................................................................ 3
1.2 Description.................................................................................................................................................................. 3
2. ELECTRICAL REQUIREMENTS......................................................................................................... 4
2.1 Standard Test Conditions ......................................................................................................................................... 4
2.2 LCD monitor General specification......................................................................................................................... 4
2.3 LCD Panel Specification ........................................................................................................................................... 5
2.4 Input Signals .............................................................................................................................................................10
2.5 Controls .....................................................................................................................................................................14
2.6 White Color Temperature .......................................................................................................................................16
2.7 Power Management .................................................................................................................................................17
2.8 Plug & Play(EDID)...................................................................................................................................................18
2.9 Audio Technical specification.................................................................................................................................18
3. VL-901 DISPLAY CONTROL BOARD............................................................................................... 19
3.1 Description................................................................................................................................................................19
3.2 Features.....................................................................................................................................................................19
3.3 Block Diagram..........................................................................................................................................................19
3.4 Connector Locations................................................................................................................................................21
3.5 Connector Type.........................................................................................................................................................21
3.6 Connector pin assignment ......................................................................................................................................21
4. VK906 Control Panel Board............................................................................................................ 24
4.1 Description................................................................................................................................................................24
4.2 Connector and Switch Locations............................................................................................................................24
4.3 Connector type..........................................................................................................................................................24
4.4 Connector pin Assignment ......................................................................................................................................24
4.5 Switch definition.......................................................................................................................................................25
4.6 LED definition...........................................................................................................................................................25
5. POWER SUPPLY (VI-902) ............................................................................................................... 26
5.1 Electrical specification ............................................................................................................................................26
5.2 Pin Assignments........................................................................................................................................................27
6. VM-902 AUDIO BOARD................................................................................................................... 28
6.1 Description................................................................................................................................................................28
6.2 Connector Locations................................................................................................................................................28
7. TROUBLESHOOTING ..................................................................................................................... 30
7.1 Main Procedure........................................................................................................................................................30
8. MECHANICAL REQUIREMENTS...................................................................................................... 36
8.1 Vibration and Shock ................................................................................................................................................36
8.2 Package Drop Specification ...................................................................................................................................36
8.3 Dimension Size and Weight ....................................................................................................................................37
8.4 Gap Spec....................................................................................................................................................................37
8.5 Tilt Base Rotation.....................................................................................................................................................39
8.6 Swivel Base Rotation ...............................................................................................................................................39
8.7 Plastic Material ........................................................................................................................................................40
8.8 GAP Spec. ..................................................................................................................................................................40
9. Power Line Transient Test (IEC 61000-4-4 Fast Transients/Burst).................................................. 40
9.1 Peak Voltage .............................................................................................................................................................40
9.2 Polarity .....................................................................................................................................................................40
9.3 Repetition Frequency of the impulse ....................................................................................................................40
9.4 Rise-Time ..................................................................................................................................................................41
9.5 Impulse Duration......................................................................................................................................................41
9.6 Relation to Power Supply........................................................................................................................................41
9.7 Burst Duration..........................................................................................................................................................41
9.8 Burst Period ..............................................................................................................................................................41
9.9 Climatic Conditions .................................................................................................................................................41
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  • Page 1: Table Of Contents

    AL1911 TFT LCD MONITOR CONTENTS 1. INTRODUCTION... 3 1.1 Scope ... 3 1.2 Description... 3 2. ELECTRICAL REQUIREMENTS... 4 2.1 Standard Test Conditions ... 4 2.2 LCD monitor General specification... 4 2.3 LCD Panel Specification ... 5 2.4 Input Signals ...10 2.5 Controls ...14...
  • Page 2 9.10 Test Procedure...41 Power Line Surge Test (IEC 61000-4-5 Surge)... 43 10.1 Climatic Condition ...43 10.2 Test Conditions: ...43 ENVIROMENT REQUIREMENT... 44 11.1 Operating ...44 11.2 Storage or Shipment ...44 REGULATION COMPLIANCE ... 45 12.1 This product comply to the most current revisions of following regulations: ...45 12.2 Electrostatics Discharge (ESD) ...46 QUALITY AND RELIABILITY...
  • 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, This monitor can be directly connected to general 15 pin D-sub VGA connector, eliminates the requirement of optional special display card.
  • 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:...
  • Page 5: Lcd Panel Specification

    Pixel pitch : Display Dot : Pixel Clock : Contrast ratio: = 0° Brightness: Response time (Tr/Tf) : Display color : Viewing angle: L / R U / D Luminance Uniformity : Pc interface: 1). Video : Sync : Signal connector : Audio power : Front control : Interface frequency...
  • Page 6 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). wMeasuring equipment : TOPCON BM-5A, BM-7, PHOTO RESEARCH PR650 (Inverter Freq.
  • Page 7 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...
  • Page 8 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.
  • Page 9 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 LMD Voltage One maximum value of three estimated values.
  • Page 10: 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: Where Lmax is the larger value of Gbkg or Lsh , and Lmin is the smaller of the two. To determine background and foreground levels (colors),first set the background to any gray scale or color level suitable for shadowing determination.(Note that it may take several iterations of adjusting background level and box levels to determine the proper value for the...
  • Page 11 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 12: Supported Timing

    2.4.4 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 VGA-480 59.94 640x480 35.00 APPLE MAC- 66.67 640x480 37.861 VESA-480-72Hz 72.809 640x480 37.5 VESA-480-75Hz 720x400...
  • Page 13 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 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 14: Controls

    2.5 CONTROLS 2.5.1 Control panel (monitor front panel) 1. Power LED, will be green when monitor is on; be amber when in power saving mode. 2. Adjust decrease. 3. Adjust increase. 4. Function select counter-clockwise. 5. Function select clockwise. 6. Power ON/OFF switch, push to ON and push to OFF. (toggle switch) 7.
  • Page 15 Description: Brightness: Contrast: H. Position: V. Position: Phase: OSD position: Auto Adjustment: Clock: Graph Text: Language: Recall: Color Temp: § User: User R: User G: User B: § 7500: § 6500: § 9300: Exit: Sharpness : Adjust the scale-up effect(smoother or sharper.) OSD Transparency: Adjust the transparency level of OSD.
  • Page 16: White Color Temperature

    Intellectual-Auto (AM969) can start the Auto-Adjustment automatically when input a new display mode at first time. After the adjustment, (AM999) will remember this mode and switch to optimized condition automatically for this mode whenever encounter this mode again. Total 21 recent used modes are recorded into (AM969) VESA DPMS Functionality screen about 3 seconds.
  • Page 17: Power Management

    2.7 Power Management 2.7.1 Meet VESA DPMS proposal The monitor must comply with the Microsoft On Now specification, with a minimum of three power management states, as defined by the VESA DPMS document. The front panel of the monitor must appropriately display the DPMS state, For example: DPMS ON : DPMS OFF :...
  • Page 18: Plug & Play(Edid)

    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). 2.9 Audio Technical specification 2.9.1 General Description: + 1W maximum Total harmonic distortion Input signal sensitivity Input impedance Frequency response range Difference of L and R output...
  • Page 19: Vl-901 Display Control Board

    3. VL-901 DISPLAY CONTROL BOARD 3.1 Description The VL-901 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 On board embedded micro-processor to detect display timings and control user functions.
  • Page 21: Connector Locations

    3.4 Connector Locations 3.5 Connector Type Location Type 74320-4004 1211-15 6905-40 4300-10 4500-07 3.6 Connector pin assignment 3.6.1 Pin NO. Signal R-Video G-Video B-Video N. C. Ground Ground Ground Ground 5VCC PCDETECT 3.6.2 Maker Number of pins MOLEX E&T E&T E&T E&T Comment...
  • Page 22: Brightness Adjustment

    Terminal No. Symbol 36,37,38 TXE0- TXE0+ TXE1- TXE1+ TXE2- TXE2+ TXECLK- TXECLK+ TXE3- TXE3+ TXO0- TXO0+ TXO1- TXO1+ TXO2- TXO2+ TXOCLK- TXOCLK+ TXO3- TXO3+ 03,06,09, 12 15, 18, 21, 24 27, 30, 34, 35 39,40 3.6.3 Pin NO. Signal 5 VCC 3,4,5 BLON BRIGHT...
  • Page 23 3.6.4 Pin NO. Signal LED-Y LED-G KEY-POWER KEY-DOWN KEY-R KEY-L KEY-UP Comment Power saving mode Monitor is ON Power ON/OFF key Function select counter-clockwise key Adjust up key Adjust down key Function select counter-clockwise key...
  • Page 24: Vk906 Control Panel Board

    KEY-UP 4.4.2 Pin NO. Signal MUTE HP-S Maker Number of pins E&T E&T ACER ACER Comment Audio mute control Power saving mode Monitor is ON Power ON/OFF key Function select counter-clockwise key Adjust up key Adjust down key Function select counter-clockwise key...
  • Page 25: Switch Definition

    HP-L HP-R 4.5 Switch definition Location Definition Power ON/OFF Function select by clockwise direction Function select by counter-clockwise direction Adjust up Adjust down 4.6 LED definition Location Definition Green for ON mode; Yellow for OFF mode; yellow for Power Saving mode;...
  • Page 26: Power Supply (Vi-902)

    5. POWER SUPPLY (VI-902) 5.1 Electrical specification 5.1.1 AC/DC CKT: Input Voltage: 100 ~ 240 ±10%Vac Input Frequency: 47 ~ 63Hz Input Current: 1.2 Arms Max. @ 100Vac Efficiency: 75% Min. Inrush Current: Cold Start Up: Less than 30A0-p Hot Start Up: Less than 42Ao-p and must be met the stress required for all concerned parts (@Ta=40 degree) 6.
  • Page 27: Pin Assignments

    5.1.2 Inverter CKT: 1.Fujustu /FLC48SXC8V-10 Item Input Voltage Lamp Voltage Luminance Brightness adjustable range Working Frequency Lamp Current Backlight ON/OFF Control Brightness control range(positive adjustment) Lamp Current Balance Open Lamp Volt. Efficiency Strike Lamp time Delay Time for Open Lamp Protection /each lamp Audible Noise 5.2 Pin Assignments...
  • Page 28: Vm-902 Audio Board

    5.2.3 Reliability Requirements: 1. MTBF: 60,000 hours 2. Abnormal protections: Should meet NMV’s requirement 3. Operational Environment: 0 ~ 40 degC, Humidity: 20 ~ 80% 5.2.4 Safety, EMI & Ergonomic Requirements: 1. Safety: UL /C-UL, TUV/GS, CE 2. EMI: FCC Class B, CE, VCCI Class B, BSMI 6.
  • Page 29 6.2.3 J2 TO Speaker Pin No Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11 6.2.3 J3 FOR Audio input Pin No Pin 1 Pin 2 Pin 3 Signal VDD for audio volume adjustment Audio volume adjustment...
  • Page 30: Troubleshooting

    7. TROUBLESHOOTING 7.1 Main Procedure AM969...
  • Page 32 7.1.1 Power Circuit Troubleshooting...
  • Page 33 7.1.2 Backlights Troubleshooting VI-902...
  • Page 34 7.1.3 Performance Troubleshooting...
  • Page 35 7.1.4 Function Troubleshooting...
  • Page 36: Mechanical Requirements

    8. MECHANICAL REQUIREMENTS 8.1 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 37: Dimension Size And Weight

    8.3 Dimension Size and Weight Dimension size Net Weight Gross Weight 8.4 Gap Spec. 8.4.1 The step between front bezel and back cover shall be within specification. Back Cover & Bezel Gap 0.8 mm A 1.2 mm Back Cover & Bezel Alignment 0 mm D 0.8 mm Back Cover &...
  • Page 38 Back Cover & Cable Cover Gap 0.8 mm B 1.2 mm Base Cover & Neck Cover Gap 0.8 mm C 1.2 mm...
  • Page 39: Tilt Base Rotation

    8.4.2 LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. The distance of the LCD display unit from left side to right should not large than ∣E - F∣<=4.0mm. 8.5 Tilt Base Rotation Tilt up 25 ±...
  • Page 40: Plastic Material

    8.7 Plastic Material Front Bezel ABS 94HB, 94V-0 Back Cover ABS 94HB, 94V-0 The Others ABS 94HB TCO’ 99(Optional) Front Bezel BACK COVER The others 8.8 GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.5 mm 9.
  • Page 41: Rise-Time

    9.4 Rise-Time : 5ns 9.5 Impulse Duration: 50 nS 9.6 Relation to Power Supply: Asynchronous 9.7 Burst Duration: 15 ms 9.8 Burst Period: 300 ms 9.9 Climatic Conditions: - Ambient Temperature: 15°C to 35°C - Relative Humidity: 45% to 75% - Atmospheric Pressure: 86 kPa to 106 kPa 9.10 Test Procedure:...
  • Page 42 WAVESHAPE...
  • Page 43: Power Line Surge Test (Iec 61000-4-5 Surge)

    10. Power Line Surge Test (IEC 61000-4-5 Surge) 10.1 Climatic Condition The climatic conditions shall be within the following ranges: 10.1.1 Ambient Temperature: 15 C to 35 C 10.1.2 Relative Humidity: 10% to 75% 10.1.3 Atmospheric Pressure 86kPa(860 mbar)to 106kPa (1060mbar) Note: The temperature and relative humidity should be recorded in the test report.
  • Page 44: Enviroment Requirement

    11. ENVIROMENT REQUIREMENT 11.1 Operating Temperature Relative Humidity Altitude 11.2 Storage or Shipment Temperature Relative Humidity Altitude 11.2.1 TEST PROCEDURE: Put in temperature chamber under 60 C Back to room temperature Put in temperature chamber under -20 C Back to room temperature The process repeat 2 times.
  • Page 45: Regulation Compliance

    12. REGULATION COMPLIANCE 12.1 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 CE LVD Directive (73/23/EEC)
  • Page 46: Electrostatics Discharge (Esd)

    12.2 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...
  • Page 47: Quality And Reliability

    Ambient temperature Relative humidity 13. QUALITY AND RELIABILITY 13.1 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 48: Appendix A: Parts Lists

    Appendix A: Parts list Note: Please access to the website of http://aicsl.acer.com.tw/spl/...
  • Page 49 Appendix B: DISPLAY Assembly...
  • Page 51 ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # LAM969F0001 LAM969F ABO 1 DC190020440 CB ASY 2 GA0500000C0 POWER CORD SET 3 DC190013810 CB ASY 4 58290730001 DIS UNIT ABO 5 68009530001 PACKING ABO 6 X66ANF30001 MEC PACKING ABO...
  • Page 52 ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # X66ANF30001 MEC PACKING ABO 1 FJCM9917000 EPS FOAM-L 2 FJCM9918000 EPS FOAM-R QUANTITY REQUIRED SPECIFICATION ------------------ -------------------------------------- LAM969F...
  • Page 54 =========...
  • Page 55 ================================================================================================================== ========= REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 58290730001 DIS UNIT ABO 1 AC600022710 LCD MODU 2 DA3M999V011 FPC 3 DC020154210 H-CON SET 4 DC020200410 H-CON SET 5 DC020155200 H-CON SET 6 453A9930021 PCBA POWER/B...
  • Page 56 ================================================================================================================== ================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # X66ANG30001 MEC PARTS ABO 1 ECCM991H000 CHASSIS ASSY(CM998) 2 ECCM9922000 NECK BRACKET 3 ECCM9925000 BASE BRACKET ASSY 4 ECCM9933000 HINGE ASSY 5 ECCM9934000 SWIVEL HINGE 6 EECM991J100 EMI COVER ASSY (AM969)
  • Page 57 Appendix C: PCBA Assembly...
  • Page 59 ==================================================================================================================================== REV. 0A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 455AA530001 PCBA AUDIO/B 1 435AA530001 SMT AUDIO/B 2 CB047A6M300 ECE CAP(NP) 3 CB10012M4T0 ELE CAP 4 CB220024200 ECE CAP 5 DC03E000900 WAFER CONN.
  • Page 66 ================================================================================================================== ================== REV. 0C C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 461A9930001 FIRMWARE CTRL/B # 461A9930011 FIRMWARE CTRL/B # 461A9930021 FIRMWARE CTRL/B 1 451A9930001 PCBA CTRL/B 2 451A9930011 PCBA CTRL/B * 3 31A622 SYSTEM EDID,LCM998(C-E),DIGITAL...
  • Page 67 ================================================================================================================== ================== REV. 1E C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 431A9930001 SMT CTRL/B # 431A9930011 SMT CTRL/B 1 DA4M999V010 PCB 2 SA008090620 SM IC 3 SA010850500 S IC 4 SA011170200 S IC 5 SA011170300 S IC...
  • Page 68 ================================================================================================================== ================== REV. 1E C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- 29 SE024101JT8 CHIP CERAMIC CAP. 30 SE024180Z01 CHIP CERAMIC CAP. 31 SE024221JT3 CHIP CERAMIC CAP. 32 SE025103KT4 CHIP CERAMIC CAP.
  • Page 70 ================================================================================================================== ================== REV. 0C C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 454AA530001 PCBA KEY/B 1 BC5G2093000 LED 2 CF150021300 VR RES 3 DA1M969V000 PCB 4 DC030040000 WAFER CONN 5 DC03E000500 WAFER CONN.
  • Page 72 ========================================================================================================================= =========== C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 453A9930001 PCBA POWER/B # 453A9930011 PCBA POWER/B # 453A9930021 PCBA POWER/B 1 433A9930001 SMT POWER/B 2 433A9930011 SMT POWER/B 3 433A9930021 SMT POWER/B 4 AB008170000 IC 5 AB078050300 IC...
  • Page 73 ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 433A9930001 SMT POWER/B # 433A9930011 SMT POWER/B # 433A9930021 SMT POWER/B 1 443A9930001 AIS POWER/B 2 443A9930011 AIS POWER/B 3 443A9930021 AIS POWER/B 4 SA009600100 S IC...
  • Page 74 ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- 40 SD014470200 CHIP RES. 41 SD014510100 CHIP RES. 42 SD014560300 CHIP RES. 43 SD014620207 CHIP RES. 44 SD014634200 S RES 45 SD014806203 CHIP RES.
  • Page 75 ================================================================================================================== ================== REV. 1A C NO. PART NO. DESCRIPTION - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- ----- # 443A9930001 AIS POWER/B # 443A9930011 AIS POWER/B # 443A9930021 AIS POWER/B 1 AB0043101T3 IC 2 BC1PS1010T0 DIO 3 BC1PS1040T0 DIO 4 BC1SB1401T0 DIO...