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      ThinkVision L1900p 19-inch Flat Panel LCD Monitor (4431-HE1) - Overview

      ThinkVision L1900 19-inch Wide Monitor (4431)

      ThinkVision L1900p 19-inch Monitor (4431)
      Machine Type - Models: 4431-HE1

      Features and specifications

      The ThinkVision L1900p 19-inch Monitor (4431) features:

      • 19-inch monitor with 1280 x 1024 resolution; 5:4 aspect ratio
      • VGA analog and DVI digital video input, including:
        • Dual input for attachment of two systems concurrently; the user selects which PC system image is display
      • Ergonomic stand with multiple user adjustments: tilt, lift, swivel and pivot
      • Detachable rear stand cable cover and clip to hide cables
      • Microsoft Windows 7 certified
      • Compliance includes:
        • TCO Display 03
        • EPEAT GOLD rated
        • ENERGY STAR 5.0 (United States)
      Feature Specification
      Monitor Size 19.0 inch (483 mm)
      Optimum Resolution 1280 x 1024
      Maximum Resolution 1280 x 1024
      Video input VGA Analog, DVI Digital
      Pixel pitch 0.294 mm
      Brightness (typical) 250 cd/m2
      Contrast ratio (typical) 800 : 1
      Colors 16.7 million
      Viewing angle (typical) Horizontal: 160 degrees (at 10:1 contrast ratio); 170 degrees (at 5:1 contrast ratio)
        Vertical: 160 degrees (at 10:1 contrast ratio); 170 degrees (at 5:1 contrast ratio)
      Response time (typical) 5 ms
      Viewable area height 301 mm
      Viewable area width 376 mm
      VGA analog video cable 1.8 m
      DVI digital video cable 1.8 m
      SYNC Type Separate TTL
      SYNC on Green No
      USB input None
      USB output None
      Bezel width (Side) 15.3 mm
      Tilt 0 degrees forward
      30 degrees backward
      Swivel 45 degrees left, 45 degrees right
      Lift 110 mm (4.3 inches)
      Pivot 90 degrees from landscape to portrait; requires image rotation support from system
      Soundbar Attachment Optional 
      Kensington Security Lock Slot  Yes
      User controls Digital
      Lockable controls Yes
      OSD Yes
      OSD languages 8
      Preset display modes 21
      User defined display modes 17
      VESA DDC capable 2B/CI
      ISO 13406-Part 2 capable Yes
      Power management capable Yes - VESA DPMS
      Power supply Universal Voltage (100 to 240 VAC)
      Power cord - detached 1.8 meter
      JEIDA compliance Yes
      FCC B compliance Yes
      MPR-2 emission compliance Yes
      MPR-3 emission compliance Yes
      TCO'03 Environmental Label Yes
      EU Directive 2002/95/EC (RoHS) Yes
      EU Directive 2002/96/EC (WEEE) Yes

      Physical specifications
      Parameter Unpacked Packed
      Width 16.1 inch (408 mm) 17.71 inch (440 mm)
      Depth 9.49 inch (241 mm) 9.13 inch (232 mm)
      Height 14.9 inch (379 mm) 18.58 inch (472 mm)
      Weight 12.48 lb (5.66 kg) 15.7 lb (7.12 kg)
      Weight - without lift/tilt/swivel/pivot stand 8.71 lb (3.95 kg) - - - - - - - - - - -

      Power requirements
      • Input voltage: 100 to 240 V ac
      • Frequency: 50/60 Hz
      • Power consumption:
        • Maximum: 24 watts
        • Normal use: 17 watts typical
        • VESA standby: <1 watt
        • VESA suspend: <1 watt
        • VESA off: <0.5 watt
        • Maximum earth leakage current:
          • < 3.5 mA at 264 V
          • < 0.25 mA at 100 V

      Ambient temperature and relative humidity
      Parameter Temperature Relative humidity Altitude
      Operating 0 to 40 deg.C 8 to 80 % 0 to 12,000 ft (3,657 m)
      Shipping -20 to 60 deg. C 5 to 95 % 0 to 35,000 ft (10,668 m)
      Storage -20 to 60 deg. C 5 to 95 % 0 to 12,000 ft (3,657 m)


      Declared acoustical noise emissions LWAU = 4.5 bels or less. The noise emission level stated is the declared (upper limit) A-weighted sound power level, in bels, for a random sample of monitors. All measurements are made in accordance with ANSI S12.10 and reported in conformance with ISO/DIS 7779.

      • One monitor
      • Attached tilt, swivel, pivot, and height-adjustable stand
      • Attached 1.8-meter analog video signal cable (15-pin D to 15-pin D)
      • Attached 1.8-meter digital (DVI-D to DVI-D) cable
      • Power cord
      • A 3 -> 2 pin AC adapter (Japan only)
      • A Japanese proof of purchase card (Japan only)
      • CD containing multilingual user's guide, set-up test pattern, and .INF file
      • Setup poster
      • Safety, troubleshooting, and warranty guide

      Note: With the exception of the models for U.S., Canada, and Japan, the power cords (based on the country order code) are supplied by distribution centers.


      Three years - Customer Carry-in or Mail-in using Rapid Replacement Service

      • Announce date: 11 Nov 2008 (Worldwide)
      • Planned availability date: 14 Nov 2008 (Worldwide)

      Hardware compatibility

      The display is intended to operate with system units or video adapters that generate a video output signal falling within the following specification:

      Parameter Monitor
      Maximum Resolution 1280 x 1024 pixels
      Optimum Resolution 1280 x 1024 pixels
      Maximum pixel rate 135 MHz

      The monitor supports VESA Standard Timings as detailed in "Display Monitor Timing Specification," Version 1.0, Revision 0.8, dated September 17, 1998, for the following modes:

      • VGA: 640 x 480 at 60, 72, and 75 Hz
      • SVGA: 800 x 600 at 60, 72 and 75 Hz
      • XGA: 1024 x 768 at 60, 70, and 75 Hz
      • SXGA: 1280 x 1024 at 60, 70, 72 and 75 Hz

      This monitor also supports the following modes:

      • 640 x 350 at 70 Hz
      • 640 x 480 at 66 Hz
      • 720 x 400 at 70 Hz
      • 1280 x 1024 at 76 Hz

      Note: National language support is a function of the video adapter in the system unit and the application or support software.

      Preset Display Modes
      (H x V Pixels)
      Incoming video refresh rate
      640 x 350 70 Hz
      640 x 480 60 Hz
      66 Hz
      72 Hz
      75 Hz
      720 x 400 70 Hz
      800 x 600 60 Hz
      72 Hz
      75 Hz
      1024 x 768 60 Hz
      70 Hz
      75 Hz
      1152 x 864 75 Hz
      1280 x 1024 60 Hz NI* (Optimum Display Mode)
      75 Hz
      * This is the optimum display mode for the best displayed image. Reduced image quality may result if used in other modes due to the image scaling limitations of LCD monitor technology.
      • User modes: 17

      The factory-preset modes cannot be overwritten, but can be adjusted to personal choice. The new settings are stored automatically in one of the user locations and are recalled each time that mode is used. The factory settings for the mode in use, if any, can be restored by operating the reset control.

      Information about the current incoming display mode is shown in the on-screen displays. However, it is displayed at the LCD panel's optimum refresh rate of 60 Hz.

      It may be necessary to make some adjustments to the displayed image to compensate for variations in video signal timings. The user controls can be used to make these adjustments.

      The ThinkVision L1900p monitor (4431-HE1) is supplied with detachable 1.8-meter (5.9-feet) analog video signal cable and a detachable 1.8-meter (5.9-feet) DVI-D video signal cable.

      This monitor has been tested with ThinkPad and ThinkCentre systems and is compatible with systems and graphics adapters which comply with the relevant parts of "VESA and industry standards and guidelines for computer display monitor timing" Version 1.0 Revision 0.8, adopted September 17, 1998. Supported display modes and number of colors are a function of the attaching system unit. The full range of display modes, refresh rates, and number of colors available with this monitor may not be available or supported with all combinations of system units, their operating systems, and application software. Implementation of monitor plug and play follows the VESA DDC standard. This standard must also be implemented in the attaching system unit hardware and software to be effective.

      Software requirements
      • Microsoft Windows Vista
      • Microsoft Windows XP

      Ergonomics/Emissions/Environmental/Compatibility Approvals
      • TCO'03 Environmental Label
      • MPR-3 (Sweden)
      • ISO/DIS 13406 Part 2
      • Software: Microsoft Vista/XP
      • EU Directive 2002/96/EC - WEEE
      • EU Directive 2002/95/EC - RoHS

      Agency approvals - EMI/Safety

      UL (U.S.), CSA (Canada), IEC950 CB Report, NEMKO (Norway), SEMKO, DEMKO (Denmark), FIMKO (Finland), TUV (Germany), TUV-S (Argentina), CCC (China), NOM (Mexico), SASO (Saudi Arabia), GOST, PSB (Singapore), Green Mark (Taiwan), JEITA (Japan), FCC B (U.S.), IC (Canada), CE (Europe), MIC (Korea), VCCI Class B (Japan), BSMI (Taiwan), South Africa, Australia, New Zealand, Jordon

      • Supported display modes are a function of the attaching system unit and video subsystem. The full range of display modes available with these monitors may not be available or supported with all combinations of system units, their operating systems, video adapter cards, and application software.
      • Horizontal- and vertical-synchronization signal timings are critical in order to achieve acceptable screen images. As a consequence, support for all possible variations in H- and V-sync timings for any display mode cannot be assumed.
      • Adjustment of the user controls to enlarge the image to its maximum size requires that the signal timings of the display mode being used fall within the monitor-timing specifications.
      • The number of colors shown in any display mode (up to a maximum of 16.7 million) is not limited by the monitor, but depends on the capabilities of the video adapter in the system unit.
      • This monitor provides FCC class B - residential installation - compliance in all display modes.
      • Implementation of monitor power management follows the VESA DPMS standard. This standard must also be implemented in the attaching system unit hardware and software for monitor power management to be effective. The system implementation must provide user-adjustable, power-down delay periods. The monitor power management function is invoked only after appropriate signals are received from an attached system unit or video adapter.
      • Implementation of monitor Plug and Play follows the VESA DDC standard. This standard must also be implemented in the attaching system unit hardware and software for monitor Plug and Play to be effective.
      • Certain functions require the system unit to be similarly configured, so all monitor functions may not be enabled when attached to a particular system unit.
      • A 19.0-inch TFT monitor has nearly 4.0 million subpixel transistors laid over an area exceeding 175 square inches. Cost-effective manufacturing processes introduce a small number of defective subpixel transistors. This monitor meets the ISO 13406-2 Class II Pixel Defect follows:
        • The Auto-Setup "test pattern" can be used with Windows 3.1, Windows NT 3.5, Windows NT 4.0, Windows 95, Windows 98, Windows 2000, Windows XP, and DOS 7.0 only.


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      • Alias ID: MIGR-70940
      • Document ID: PD013534
      • Last Updated :15 May 2014
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