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Published byDonte Hawkes Modified over 10 years ago
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Classroom AV On a Budget MAEDS 2011 Jim Burkhart, IT Director Coleman Community Schools
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What You Can Expect Disclaimers Our Classroom AV Needs Our solution with configuration details
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Disclaimer Building Code Other duties One method Unorthodox use of gear Prices subject to change ENO boards
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Why Last year’s presentation Ideal situation/funding Real world, real solutions
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Problem $54,000.00 in AARA funds Do as much with it as you can Planning Begins
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Planning Start with projector, screen size, number of inputs, vendors, brands? Gathered all the information Borrowed and tested
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Planning What do we want to see & hear? – –PC with audio – –VHS & DVD with audio – –Cable TV & Channel One
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Planning Where do we want to see and hear it? – –Projection screen – –PC monitor – –Audio coverage throughout room
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Planning What kind of space are we working with? – –Drop ceiling – –Fixed ceiling – –Encapsulated Asbestos – –Size and shape of room – –Ambient lighting
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Planning Ease of use – –Can teachers figure it out? – –Can the instructions fit on one page? – –Can a substitute figure it out? – –Is it safe?
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Planning Longevity – –Is this modular? – –Can I replace individual components with different brands/products? – –Will the fancy features still be available?
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Planning Two detailed solutions – –Unobstructed drop ceiling – –Fixed, encapsulated asbestos – –Both with small windows on one side of the room
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Planning 4:3 or 16:9 – –All PCs had standard monitors – –Most classrooms had good 4:3 screens – –Most projectors were native 4:3 – –HD was out of the question at the time
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Planning Cable TV/Channel One – –VCR was cheapest option – –Separate DVD player and input
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Gear Projector – –VCR1 Composite Video – –DVD Player1 S-Video (converted) – –PC1 VGA – –Document CamVGA Pass-through
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Gear Projector – –NEC NP series 2300 ANSI Lumens 4:3 native resolution, capable of HD 2 video inputs 1 VGA 1 DVI – –Kramer VGA DA for monitor
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Gear Audio system – –Constant Voltage System (70 volt system) Flexibility Inexpensive wiring Easy configuration Been around for many years
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Gear Audio system – –Crown MA 135 mixer/amplifier Three separate audio inputs Four knobs and one button clearly labeled – –JBL Control 24 and Control 25 speakers Very good coverage and quality for the price
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Wiring
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Wiring Audio System – –1/8” to 2 RCA from PC to amp – –2 RCA to 2 RCA from DVD to amp – –2 RCA to bare wire from VCR to amp – –18 ga from mixer to speakers
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Wiring Projector and Video – –50’ VGA to VGA from Kramer to Projector – –50’ S-Video cable from DVD player to Projector (converted on DVD end) – –50’ BNC to BNC video cable from VCR to Projector (BNC to RCA adapters on each end)
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Wiring Getting wire to devices – –Track, wire mold, in-wall??? – –Cable ties are the answer
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Wiring
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Wiring
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Wiring
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Ease of Use
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Flexibility Easy to move Modular Does not rely on one set of features
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Cost Effective Quality gear from a trusted vendor is better in the long run We are always trying to save money in the long run Time is valuable
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Vendors Advanced Lighting & Sound – –Greg Koss, Troy, MI Alternative View – –Tammy Blanchard, Midland, MI
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Discussion
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