User manual NEC V15S INSTALLTION GUIDE

[. . . ] NEC Solutions (America), Inc. Visual Systems VT470/570/575/670/676 Installation Guide Ceiling Mounted and Desktop Contents Product Description, Lens Specs, Notes and Formulas Diagrams and Distance Charts Cabinet Dimensions Ceiling Mount Dimensions Input Panel and Control Codes Pg. [. . . ] 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. 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) = Projection angle Projection Formulas: B = 0. 2986W C (wide) = 1. 4813W ­ 1. 425 C (tele) = 1. 7913W ­ 1. 406 D = 0. 0764W -1 (wide) = tan (B/C(wide)) -1 (tele) = tan (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 VT470/570/575/670/676 Page 1 of 6 Diagrams and Distance Charts The following diagrams show the relationship between projector position and the screen. For millimeters multiply by 25. 4. Ceiling Mounted Screen Top D Lens Ctr B C Throw Distance 6. 1" 5. 5" Screen Ctr Lens Offset from Mount Pipe 2. 7" Desktop Screen Ctr B C Throw Distance Lens Ctr Screen Bottom D 2. 5" Distance chart for popular 4:3 screens Screen Size (4:3) Diag 21 60 72 84 90 100 120 150 180 200 250 300 W 16. 8 48 57. 6 67. 2 72 80 96 120 144 160 200 240 H inches inches inches B inches C wide - tele inches D inches wide - tele degrees Note: For screen sizes not indicated on the chart, use the formulas on page 1. Note: "NA" means it is outside lens range for that part of the zoom. Refer to "Screen Sizes" in Lens Specifications on Page 1. 12. 6 36 43. 2 50. 4 54 60 72 90 108 120 150 180 5. 0 14. 3 17. 2 20. 1 21. 5 23. 9 28. 7 35. 8 43. 0 47. 8 59. 7 71. 7 NA - 28. 7 69. 7 - 84. 6 83. 9 - 101. 8 98. 1 - 119. 0 105. 2 - 127. 6 117. 1 - 141. 9 140. 8 - 170. 6 176. 3 - 213. 6 211. 9 - 256. 5 235. 6 - 285. 2 294. 8 - 356. 9 354. 1 - 428. 5 1. 3 3. 7 4. 4 5. 1 5. 5 6. 1 7. 3 9. 2 11. 0 12. 2 15. 3 18. 3 NA - 9. 9 11. 6 - 9. 6 11. 6 - 9. 6 11. 6 - 9. 6 11. 5 - 9. 6 11. 5 - 9. 6 11. 5 - 9. 5 11. 5 - 9. 5 11. 5 - 9. 5 11. 5 - 9. 5 11. 5 - 9. 5 11. 4 - 9. 5 www. necvisualsystems. com VT470/570/575/670/676 Page 2 of 6 Cabinet Dimensions The following drawings show the cabinet dimensions. For millimeters multiply by 25. 4. 10. 24 Exhaust 2. 81 11. 57 4. 15 2. 30 (boss) 4. 19 VT470/570/575/670/676 Page 3 of 6 11. 10 www. necvisualsystems. com 2. 54 (foot) 4. 43 Cabinet Dimensions (continued) The following drawings show the cabinet dimensions. For millimeters multiply by 25. 4. 3-M4x8 MAX For Ceiling Mount Intake Lamp 2. 61 6. 85 1. 83 3. 60 7. 28 For handle (Except VT570) www. necvisualsystems. com VT470/570/575/670/676 Page 4 of 6 Optional Ceiling Mount Dimensions (Model #: VT70CM) The following drawings show ceiling mount dimensions. [. . . ] NOTE 2: For long cable runs it is recommended to set communication speed within projector menus to 9600 bps. www. necvisualsystems. com VT470/570/575/670/676 Page 6 of 6 [. . . ]