NEC LT245 Installation Manual

NEC Solutions (America), Inc. Visual Systems LT245 Installation Guide Used with 4:3 and 16:9 screens v1.1 Contents Product Description, Lens Specs, Screen/Aspect Ratio, Notes and Formulas Pg. 1 Diagrams and Distance Charts, 4:3 Screens Pg. 2 16:9 Screens Pg. 3 Cabinet Dimensions, Top, Front and Right Pg. 4 Bottom, Back and Left Pg. 5 Ceiling Mount Dimensions Pg. 6 Input Panel and Control Codes Pg. 7 Product Description Type: 1chip DMDTM projector, Color Wheel: 4 segment Resolution: 1024 x 768 (4:3) Dimensions: 10.24”(W) x 4.84”(H) x 12.40”(D) 1024 x 576 (16:9) Weight: 7.1 lbs Brightness: 2200 ANSI lumens Lens Specifications Throw Ratio: 1.5 - 1.9:1(for 100” diagonal) Focal Length: 22.1mm – 26.5mm Offset Angle: 15.7°-18.7° (for 100” diagonal) F/#: 2.2 – 2.5 Screen Sizes: 30”-500” diagonal (4:3) Manual Zoom / Focus Screen/Aspect Ratio Both 4:3 and 16:9 screens are fully supported with proper aspect ratio control for both type sources using NEC developed scaling technology. By selecting the screen type in the menus, Aspect Ratio control is reconfigured for that screen type. • For a 4:3 screen; select “4:3” in the “Screen” menu for proper aspect ratio control of 4:3 and 16:9 sources. • For a 16:9 screen; select “16:9” in the “Screen” menu for proper aspect ratio control of 4:3 and 16:9 sources. *Factory default “Screen” setting is “4:3”. Notes � For screen sizes not indicated on the projection charts, use the formulas below. � The ceiling must be strong enough to support the projector and the installation must be in accordance with any local building codes. � Distances are in inches, for millimeters multiply by 25.4. � Distances may vary ±5%. Formulas The Projection Formulas use the image width for calculation. Image width is the same for all aspect ratios, only vertical image size varies. For proper projector placement, determine the image width for a desired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the image width for “W” in the Projection Formulas. Refer to the diagrams and charts for popular screen sizes on page 2 and 3. Definitions: 4:3 Screen Formulas: W = Image Width W = H x 4/3 H = Image Height (Size) H = W x 3/4 B = Vertical distance between lens center and screen center Screen Diagonal = W x 5/4 C = Throw distance D = Vertical distance between lens center and screen top 16:9 Screen Formulas: (screen bottom for desktop application). W = H x 16/9 α = Projection angle H = W x 9/16 Screen Diagonal = W x 18.35756/16 Projection Formulas: B = 0.5248W - 0.053 Vertical Position for a 16:9 screen: The Vertical Position adjustment moves the 16:9 C (wide) = 1.5692W – 1.978 image up and down in the unused portion of the 4:3 panel. This adjustment is only C (tele) = 1.8836W – 1.9 available when the projector is set for ‘16:9’ in the ‘Screen’ menu. The range of Vertical D(4:3) = 0.1498W - 0.053 Position is dependent on aspect ratio and 3D Reform used. If 3D Reform is not used, D(16:9) = 0.24355W - 0.053 the approximate range of Vertical Position is +/-0.167H (H=Screen Height) when using α (wide) = tan-1 (B/C(wide)) a 16:9 screen. α (tele) = tan-1 (B/C(tele))

Diagrams and Distance Charts for 4:3 Screens The following diagrams show the relationship between projector position and the screen. Refer to the chart below for data. Distances are in inches. For millimeters multiply by 25.4. Ceiling Mounted Desktop Distance chart for popular 4:3 screens Note: For screen sizes not indicated on the chart, use the formulas on page 1. Screen Top Throw Distance Screen Ctr D Lens offset from mount center α 5.8" Lens Ctr B 2.5" 6.5" C Screen Bottom Throw Distance Screen Ctr D α Lens Ctr B 3.3" C B D Diag W H wide - tele wide - tele inches inches inches inches inches 30 24 18 12.5 35.7 - 43.3 3.5 19.4 - 16.2 60 48 36 25.1 73.3 - 88.5 7.1 18.9 - 15.9 72 57.6 43.2 30.2 88.4 - 106.6 8.6 18.8 - 15.8 84 67.2 50.4 35.2 103.5 - 124.7 10.0 18.8 - 15.8 90 72 54 37.7 111.0 - 133.7 10.7 18.8 - 15.8 100 80 60 41.9 123.6 - 148.8 11.9 18.7 - 15.7 120 96 72 50.3 148.7 - 178.9 14.3 18.7 - 15.7 150 120 90 62.9 186.3 - 224.1 17.9 18.7 - 15.7 180 144 108 75.5 224.0 - 269.3 21.5 18.6 - 15.7 200 160 120 83.9 249.1 - 299.5 23.9 18.6 - 15.7 250 200 150 104.9 311.9 - 374.8 29.9 18.6 - 15.6 300 240 180 125.9 374.6 - 450.2 35.9 18.6 - 15.6 350 280 210 146.9 437.4 - 525.5 41.9 18.6 - 15.6 400 320 240 167.9 500.2 - 600.9 47.9 18.6 - 15.6 450 360 270 188.9 562.9 - 676.2 53.9 18.5 - 15.6 500 400 300 209.9 625.7 - 751.5 59.9 18.5 - 15.6 Screen Size (4:3) C inches α degrees

Diagrams and Distance Charts for 16:9 Screens The following diagram shows the relationship between projector position and the screen. Refer to the chart below for data. Distances are in inches. For millimeters multiply by 25.4. Ceiling Mounted Desktop Distance chart for popular 16:9 screens Vertical Position for a 16:9 screen The Vertical Position adjustment moves the 16:9 image up and down in the unused portion of the 4:3 panel. This adjustment is only available when the projector is set for ‘16:9’ in the ‘Screen’ menu. The range of Vertical Position is dependent on aspect ratio and 3D Reform used. If 3D Reform is not used, the approximate range of Vertical Position is +/-0.167H (H=Screen Height) when using a 16:9 screen. Note: For screen sizes not indicated on the chart, use the formulas on page 1. Screen Top Throw Distance Screen Ctr D Lens offset from mount center α 5.8" Lens Ctr B 2.5" 6.5" C Screen Bottom Throw Distance Screen Ctr D α Lens Ctr B 3.3" C B D Diag W H wide - tele wide - tele inches inches inches inches inches 28 24 13.5 12.5 35.7 - 43.3 5.8 19.4 - 16.2 55 48 27 25.1 73.3 - 88.5 11.6 18.9 - 15.9 60 53 29.5 27.5 80.4 - 97.0 12.7 18.9 - 15.8 73 64 36 33.5 98.5 - 118.7 15.5 18.8 - 15.8 82.6 72 40.5 37.7 111.0 - 133.7 17.5 18.8 - 15.8 92 80 45 41.9 123.6 - 148.8 19.4 18.7 - 15.7 100 87 49 45.6 134.5 - 162.0 21.1 18.7 - 15.7 106 92 52 48.2 142.4 - 171.4 22.4 18.7 - 15.7 110 96 54 50.3 148.7 - 178.9 23.3 18.7 - 15.7 119 104 58.5 54.5 161.2 - 194.0 25.3 18.7 - 15.7 123 107 60 56.1 165.9 - 199.6 26.0 18.7 - 15.7 133 116 65 60.8 180.0 - 216.6 28.2 18.7 - 15.7 135 118 66 61.9 183.2 - 220.4 28.7 18.7 - 15.7 159.5 139 78 72.9 216.1 - 259.9 33.8 18.6 - 15.7 161 140 79 73.4 217.7 - 261.8 34.0 18.6 - 15.7 459 400 225 209.9 625.7 - 751.5 97.4 18.5 - 15.6 Screen Size (16:9) C inches α degrees

Cabinet Dimensions The following drawings show the cabinet dimensions. Dimensions are in inches. For millimeters multiply by 25.4.

Cabinet Dimensions (continued) The following drawings show the cabinet dimensions. Dimensions are in inches. For millimeters multiply by 25.4.

Optional Ceiling Mount Dimensions (Model #: LT65CM) The following drawings show ceiling mount dimensions. Dimensions are in inches. For millimeters multiply by 25.4. The mount accommodates a 1.5” NPT treaded pipe extension or two 3/8”-16 threaded rod extensions. Mount adjustments include roll, pitch and yaw. Contact Peerless Industries for mount accessories at (800) 865-2112. 0.406 1.5 NPT 7.398 8.062 3.044 2.669

Input Panel Control Codes Function Code Data POWER ON 02H 00H 00H 00H 00H 02H POWER OFF 02H 01H 00H 00H 00H 03H INPUT SELECT RGB 1 02H 03H 00H 00H 02H 01H 01H 09H INPUT SELECT RGB 2 02H 03H 00H 00H 02H 01H 02H 0AH INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH INPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H INPUT SELECT VIEWER 02H 03H 00H 00H 02H 01H 1FH 27H PICTURE MUTE ON 02H 10H 00H 00H 00H 12H PICTURE MUTE OFF 02H 11H 00H 00H 00H 13H SOUND MUTE ON 02H 12H 00H 00H 00H 14H SOUND MUTE OFF 02H 13H 00H 00H 00H 15H ON SCREEN MUTE ON 02H 14H 00H 00H 00H 16H ON SCREEN MUTE OFF 02H 15H 00H 00H 00H 17H ASPECT RATIO (4:3 Screen) 4:3 03H 10H 00H 00H 05H 18H 00H 00H 00H 00H 30H Letterbox 03H 10H 00H 00H 05H 18H 00H 00H 01H 00H 31H Widescreen 03H 10H 00H 00H 05H 18H 00H 00H 02H 00H 32H Crop 03H 10H 00H 00H 05H 18H 00H 00H 03H 00H 33H ASPECT RATIO (16:9 Screen) 4:3 Window 03H 10H 00H 00H 05H 18H 00H 00H 00H 00H 30H Letterbox 03H 10H 00H 00H 05H 18H 00H 00H 01H 00H 31H Widescreen 03H 10H 00H 00H 05H 18H 00H 00H 02H 00H 32H 4:3 Fill 03H 10H 00H 00H 05H 18H 00H 00H 04H 00H 34H AUTO ADJUST 02H 0FH 00H 00H 02H 05H 00H 18H NOTE: Contact your NEC rep for codes not listed. Cable Connection Communication Protocol: PC Control Connector (DIN-8P) Baud Rate: 38400 bps Data Length: 8 bits Parity: No Parity Stop Bit: One bit X on/off: None Communications: Full duplex NOTE 1: For LT265GOV, it is recommended to set Standby Mode to ‘Normal’ in the Setup menu for best Power ON response. NOTE 2: Pins 2, 3, 5, 6 and 8 are used inside the projector.. NOTE 3: For long cable runs it is recommended to set communication speed within projector menus to 9600 bps. PC CARD MONITOR OUT AUDIO OUT AUDIO IN COMPUTER 2 IN COMPUTER 1 IN PC CONTROL S-VIDEO IN VIDEO IN R AUDIO IN L LAN USB To RxD of PC 1 2 3 4 5 6 7 8 To TxD of PC To GND of PC