NEC Solutions (America), Inc. Visual Systems Division LT380 Installation Guide Ceiling Mounted and Desktop Contents Product Description, Lens Specs, Notes and Formulas Diagrams & Distance Charts Cabinet Dimensions_____________ Ceiling Mount Dimensions _________ Input Panel and Control Codes Pg 1 Pg 2 Pg 3 Pg 4 Pg 5 Rev 1.1 Product Description Type: Resolution: 3 panel LCD projector, 0.79" p-Si TFT w/MLA LT380: 1024 x 768 Brightness: Dimensions: Weight: LT380: 3000 ANSI Lumens 12.2"(W) x 10.2"(H) x 4.4"(D) 6.17 lbs Lens Specifications Throw Ratio: Offset Angle: Screen Sizes: 1.5 ­ 1.8:1 (for 100" diagonal) 8.5° - 11.2° (for 100" diagonal) 21" - 300" diagonal (4:3) Focal Length: 24.2mm ­ 29.0mm F/#: 1.7 - 2.0 Manual Focus/Manual Zoom Notes · · · For screen sizes not indicated on the projection tables, use the formulas below. If the figures on the tables do not match the results of formulas, use the figures in the table. All calculations are based on 4:3 aspect ratio. Distances are in inches, for millimeters multiply by 25.4. Distances may vary ±5%. Formulas The Projection Formulas use the image width for calculation. For proper projection placement, determine the image width for the desired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the width for "W" in the Projection Formulas. Refer to the diagrams and charts for popular screen sizes on page 2: Definitions: W = Image Width H = Image Height (size) B = Vertical distance between lens center and screen center C = Throw distance D = Vertical distance between lens center and screen top (screen bottom for desktop application) Projection Formulas: B = 0.270W C(wide) = 1.491W ­ 1.823 C (tele)=1.803W ­ 1.820 D = 0.1063W (wide) = tan¯¹ (B/C(wide)) (tele) = tan¯¹ (B/C(tele)) 4:3 Screen Formulas: W = H x 4/3 H = W x 3/4 Screen Diagonal = W x 5/4 www.necvisualsystems.com LT380 Page 1 of 6 NEC Solutions (America), Inc. Visual Systems Division LT380 Installation Guide Ceiling Mounted and Desktop Diagrams and Distance Charts The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of installation. Distances are in inches. For millimeters multiply by 25.4. Rev 1.1 Ceiling Mounted C D Lens Ctr Screen Top Throw Distance 5.65" 6.30" B Screen Ctr Lens Offset From Mount Pipe 2.62" Desktop C Throw Distance Screen Ctr B Lens Ctr D Screen Bottom 2.54" Distance Chart for popular 4:3 screens Screen Size (4:3) B Diag W H inches inches inches inches 30 24 18 6 60 48 36 13 72 57.6 43.2 16 84 67.2 50.4 18 90 72 54 19 100 80 60 22 120 96 72 26 150 120 90 32 Note: For screen sizes not indicated on the projection 180 144 108 39 tables, use the formulas on page 1. 200 160 120 43 250 200 150 54 300 240 180 65 C wide - tele inches 33 - 41 69 - 84 83 - 102 98 - 119 105 - 128 117 - 142 141 - 171 176 - 214 212 - 257 236 - 286 296 - 359 356 - 431 LT380 D inches -3 -5 -6 -7 -8 -9 -10 -13 -15 -17 -21 -25 wide - tele degrees 9.0 - 11.1 8.7 - 10.6 8.7 - 10.5 8.7 - 10.5 8.6 - 10.5 8.6 - 10.4 8.6 - 10.4 8.6 - 10.4 8.6 - 10.4 8.6 - 10.3 8.5 - 10.3 8.5 - 10.3 www.necvisualsystems.com Page 2 of 6 NEC Solutions (America), Inc. Visual Systems Division LT380 Installation Guide Ceiling Mounted and Desktop Cabinet Dimensions The following drawings show the cabinet dimensions. Dimensions are in inches. For millimeters multiply by 25.4. 4.76 Rev 1.1 ventilation 11.34 (LENS MAX) 2.30 (boss) Lens center 11.57 2.81 5.01 Lens center 4.72 0.70 7.10 1.53 www.necvisualsystems.com LT380 2.54 (FOOT) 0.78 (LENS MIN) Page 3 of 6 11.39 NEC Solutions (America), Inc. Visual Systems Division LT380 Installation Guide Ceiling Mounted and Desktop Cabinet Dimensions (continued) The following drawings show the cabinet dimensions. Dimensions are in inches. For millimeters multiply by 25.4. Rev 1.1 Power Switch ventilation AC input 3 - M4 * 8 max. for Ceiling Mount 1.15 Lamp security slot ventilation 8.22 2.85 6.85 0.98 1.83 Lens center 3.60 7.28 www.necvisualsystems.com LT380 Page 4 of 6 NEC Solutions (America), Inc. Visual Systems Division LT380 Installation Guide Ceiling Mounted and Desktop Optional Ceiling Mount Dimensions (Model #: VL80CM) The following drawings show the ceiling mount dimensions. Dimensions are in inches. For millimeters multiply by 25.4. Rev 1.1 8.74 8.62 2.71 2.99 3.35 www.necvisualsystems.com LT380 Page 5 of 6 NEC Solutions (America), Inc. Visual Systems Division LT380 Installation Guide Ceiling Mounted and Desktop Input Panel Rev 1.1 PC Control Codes Function POWER ON POWER OFF INPUT SELECT CCOMPUTER INPUT SELECT VIDEO INPUT SELECT S-VIDEO INPUT SELECT DVI (DIGITAL) PICTURE MUTE ON PICTURE MUTE OFF SOUND MUTE ON SOUND MUTE OFF Code Data 02H 00H 02H 01H 02H 03H 02H 03H 02H 03H 02H 03H 02H 10H 02H 11H 02H 12H 02H 13H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 02H 02H 02H 02H 00H 00H 00H 00H 02H 03H 01H 01H 01H 01H 12H 13H 14H 15H 01H 06H 0BH 1AH 09H 0EH 13H 22H Note: Contact your NEC rep for codes not listed. Cable Connection Communication Protocol: Baud Rate: 38400 bps (for cable lengths longer than 20', it is recommended changing to 9600 bps in setup menu) Data Length: 8 bits To TxD of PC Parity: No Parity To RxD of PC Stop Bit: One Bit X on/off: None To GND of PC Communications: Full duplex 1 2 67 3 8 4 9 5 To RTS of PC To CTS of PC NOTE 1 : Pins 2, 3, 5, and 6 are used inside the projector. NOTE 2: For long cable runs it is recommended to set communication speed within the projector to 9600 bps. www.necvisualsystems.com LT380 Page 6 of 6 ...