Auditorium Audiovisual System User s Guide

Transcription

1 Auditorium Audiovisual System User s Guide

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3 Page Contents Introduction...4 Facilities 7 Auditorium floor plan...8 Stage floor boxes and wall plates...9 Other floor boxes and wall plates...10 System design 11 System overview...12 RGB Presentation Subsystem...14 Video Presentation Subsystem...16 Video Production Subsystem...18 Audio Subsystem...20 Rack layouts and equipment 23 Racks and console overview...24 Rack Rack Rack Console...28 Other equipment...29 Touchscreens 31 About the touchscreens...32 Summary of touchscreen operations...32 Getting started...33 Touchscreen tips...34 Projectors, displays and screens...36 Computers...38 Multistandard videocassette player...40 Videocassette recorder/player...42 DVD player...44 DVD recorder/player...46 Television tuner...48 Production video inputs...50 Scalers...52 Videoconferencing...54 Volume...56 Routers...58 Typical event scenarios 61 General information...62 Preparing for a presentation...62 Preparing for a meeting or conference...63 Recording an event...63 Common problems and their solutions 65 General troubleshooting tips...66 Specific problems...66

4 Page 4 Introduction The Auditorium Audiovisual System is a complete audio and video system for the Auditorium and nearby areas. The system supports: Meetings Presentations Conferences Activities that can be carried out through the system include: Playing audio source materials such as CDs and audio cassettes. Projecting video source materials such as DVDs and videocassettes. Projecting computer displays. Audience participation with wireless mics. Conference support using a delegate system. n Videoconferencing. Audio output through assisted listening devices. Recording event audio and video. Facilities The Auditorium Audiovisual System encompasses several adjacent areas: Auditorium, a theater layout with permanent seating, and a stage with dais. An open Gallery providing a waiting area with entrances to the Auditorium. An Assembly Area, at one end of the gallery, that can be closed off for small meetings and press conferences. Two Green Rooms, one to the left of the stage, the other to the right of the stage. And arrayed across the back of the Auditorium: Five Translator Booths. A Press and Camera Room. The audiovisual Control Room. Additionally, the system has a video feed from the Closed Commission Hearing Room, and can output RGB to the Multipurpose Room. A floor plan is provided in the Facilities section of this manual.

5 Page 5 System overview The audiovisual system provides comprehensive audio and video support to the Auditorium. The system includes: RGB and composite video inputs Two video projectors with automatically switched RGB/composite video inputs Floor boxes and wall plates for moving audio and video to and from supported locations Wireless transmitters and receivers for assisted listening and translator audio Wireless microphones DVD, audiocassette and multistandard videocassette players DVD, digital audio and S-VHS videocassette recorders Computer interfaces Numerous monitors and a video switcher for video production Various support devices such as RGB and video routers, and a digital audio processor Two audio mixing stations The system includes a well-equipped Control Room with windows to the Auditorium. For many events, the system can be easily configured and controlled using either of two touchscreens (one is located on the Control Room countertop, the other is a wireless unit that can be used anywhere in the Auditorium). The system is versatile, enabling technicians to reconfigure it for a wide range of events. About this manual This manual provides information to enable an experienced audiovisual technician to understand and operate the system. The manual is organized in these sections: Facilities provides a floor plan, and drawings of floor boxes and wall plates. System design is a collection of diagrams describing how the system is organized. Rack layouts and equipment helps you find rackmounted components in the Control Room. Touchscreens shows you how to use the two touchscreens to configure the system. Typical event scenarios provides basic instructions for setting up the system for conventional events. Common problems and their solutions lists basic troubleshooting tips. The system is designed so it can be easily set up for typical events. However, the system has many capabilities beyond those covered in this manual. For additional information, users should consult documentation (including detailed drawings and manufacturer s manuals) provided with the system. The System design section of this manual contains functional diagrams to help you understand how the system is organized.

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7 Page 7 Facilities

8 Page 8 Auditorium floor plan Gallery Press Room Assembly Area Control Room Video Wall Stage Video Wall Translation Booths Green Room Green Room

9 Page 9 Stage floor boxes and wall plates FB-01 FB-02 FB-03 FB-04 FB-05 FB-06

10 Page 10 Other floor boxes and wall plates Assembly Area floor box Press Room audio wall plate (typical of three) Press Room video wall plate

11 Page 11 System design

12 Page 12 System overview The Auditorium Audiovisual System supports presentations, meetings, conferences and other events in and around the Auditorium. The system consists of four subsystems: RGB Presentation Subsystem: accepts RGB inputs and routes them to RGB destinations, including either of two video projectors (one in the Auditorium and one in the Gallery), large wall-mounted displays in the facility and either of two 3x3 video walls in the Auditorium. Video Presentation Subsystem: accepts video inputs, and routes them to video destinations, including either of two video projectors and the Video Production System. Video Production Subsystem: accepts video inputs from the Video Presentation Subsystem, and audio inputs from the Audio Subsystem. Audio Subsystem: accepts audio inputs from a variety of sources, and routes audio to ceiling speakers, to the Video Production System, and to other destinations. A touchscreen permits system configuration from within the Control Room. A wireless touchscreen enables you to configure the system while moving about in the Auditorium and in nearby areas. Diagrams on the following pages show major components and signal flows for each of the subsystems. Note that these diagrams show the default system configuration. The system is quite versatile, and can be reconfigured for a wide variety of events and operations.

13 Page 13 System overview

14 Page 14 RGB Presentation Subsystem The RGB Presentation Subsystem is built around a 16x16 RGB router. The router is controlled primarily from the touchscreen. Inputs to the router include: Floor boxes and wall plates on the Auditorium Stage Rack-mounted computer n Video (scaled) from the video router n Videoconferencing system The router provides outputs to: n Video projectors in the Auditorium and Gallery n Floor boxes and wall plates on the Auditorium Stage n Large LCD displays in the Assembly area and the two Green Rooms n Two 3x3 video walls in the Auditorium n A scan converter, which sends video to the video router n The videoconferencing system n Feed to the Multipurpose Room

15 Page 15 RGB Presentation Subsystem

16 Page 16 Video Presentation Subsystem The Video Presentation Subsystem is built around a 16x16 video and stereo audio router. The router is controlled primarily from the touchscreen. Inputs to the video router come from: Video feed from the Closed Commission Hearing Room Two I/O panels on the stage TV tuner Multistandard VCR DVD player S-VHS VCR DVD recorder Videoconferencing system n I/O panel on Rack 1 The router provides outputs to: LCD displays in the translation booths Two video projectors Wall plate in the Press Room S-VHS VCR DVD recorder RGB Presentation Subsystem (via video scalers) Cable feed Video Production Subsystem Videoconferencing system I/O panel on Rack 1 This subsystem also outputs audio to the Audio Subsystem via a stereo-to-mono converter.

17 Page 17 Video Presentation Subsystem

18 Page 18 Video Production Subsystem The Video Production Subsystem is built around a video switcher. The switcher is directed from a control panel on the console desk in the Control Room. Inputs to the switcher come from: Five wall-mounted video cameras (via rack-mounted quad monitors) Video router (via one rack-mounted quad monitor) The switcher provides outputs to: The video router, via a quad video processor and rackmounted monitor The video router via a rack-mounted monitor ConnectLive

19 Page 19 Video Production Subsystem

20 Page 20 Audio Subsystem The Audio Subsystem begins with a 24 channel mixer, having these inputs: Wireless microphone receivers Floor boxes on the stage Delegate system Videoconferencing system Digital audio recorder Besides local monitoring speakers, outputs from the 24- channel Auditorium mixer are to: Ceiling speakers in the Auditorium and surrounding areas, via an audio mixer/processor Video router Cable feed Assisted listening transmitter Dual audio cassette deck S-VHS VCR DVD recorder Digital audio recorder 12-channel mixer The 12-channel Assembly Area mixer has these inputs: 24-channel mixer Microphone inputs in the Assembly area Audio output from the RGB router in the RGB Presentation Subsystem Audio output from the Video router in the Video Presentation Subsystem Output from the 12-channel mixer is routed to: Ceiling speakers in the Auditorium and surrounding areas, via an audio mixer/processor Wall plates in the Press Room and Assembly Area ConnectLive

21 Page 21 Audio Subsystem

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23 Page 23 Rack layouts and equipment

24 Page 24 Racks and console overview

25 Page 25 Rack 1 Videoconferencing system Composite and S-Video encoder/decoder Stereo-to-mono amplifier RGB-to-video scan converters Video scalers Composite video and stereo audio matrix switcher TV tuner Multistandard VCR DVD player Touchscreen (on counter) Composite video bridging distribution amplifier Computer

26 Page 26 Rack 2 Touchscreen controller Touchscreen power supply and communication interface RGB router LCD monitors Quad LCD monitor Quad LCD monitor Video switcher (on counter) RGB distribution amplifiers

27 Page 27 Rack 3 Delegate system UHF antenna and power distribution for... Wireless microphone receivers Audio distribution amplifiers Assisted listening system Quad video processor Dual audio cassette recorder DVD recorder S-VHS videocassette recorder Digital audio recorder Camera pan/tilt/zoom controller (on counter) Audio mixer and signal processor Audio volume controllers Audio power amplifier

28 Page 28 Console 24 channel audio mixing board 12 channel audio mixing board Audio monitor Video monitor Video monitor Audio monitor

29 Page 29 Other equipment Fixed equipment Qty. Description Location 1 Video projector Auditorium 1 Video projector Gallery 1 3x3 Video wall (50" monitors) Auditorium, stage left 1 3x3 Video wall (50" monitors) Auditorium, stage right 1 40" LCD monitor Assembly, left 1 40" LCD monitor Assembly, right 1 32" LCD monitor L034, Green room 1 32" LCD monitor L051, Green room 1 15" LCD monitor L008, Translation booth 1 15" LCD monitor L009, Translation booth 1 15" LCD monitor L010, Translation booth 1 15" LCD monitor L011, Translation booth 1 15" LCD monitor L012, Translation booth Available, but no fixed location Qty. Description 10 15" LCD monitors 2 61" LCD displays 2 61" plasma displays

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31 Page 31 Touchscreens

32 Page 32 About the touchscreens The system is equipped with two touchscreens: n A 12" hardwired touchscreen is positioned on the counter in front of the racks. n A 7" wireless touchscreen can be used anywhere in the Auditorium and surrounding areas. You can easily control most system functions from the touchscreens, which greatly simplifies audiovisual operations. You tell the system what to do by touching the various buttons you see in the touchscreen s display. To turn on a touchscreen, touch its screen anywhere. If you don t use a touchscreen for a while, it turns off its screen to reduce power consumption. To restore the display, simply touch the screen anywhere. The wireless touchscreen is stored in a charging base. Because it is powered by internal rechargeable batteries, it should be stored in the charging base when it is not in use. Note: The slowly blinking blue light on the wireless touchscreen indicates it is communicating with the audiovisual system. If the light is not slowly blinking, there is a problem. Summary of touchscreen operations Using the touchscreens you can: n Select program sources, including: Rack-mounted computer or connected laptop Multistandard ( world ) VCR Recording VCR DVD player DVD recorder Television tuner Video production subsystem n Route program sources to destinations, including: Left and/or right 3x3 video wall Projectors Floor boxes and wall plates on the stage Display in the Assembly Area Display in the Gallery Displays in the Green Rooms Video production subsystem n Initiate and control videoteleconferences n Manually turn the video projectors and displays on and off n Adjust and mute audio volume Additionally, the touchscreens provide full control over the RGB and video routers, enabling you to configure the system for almost any event. Details for these operations are provided in this section.

33 Page 33 Getting started If you see the logo, touch the screen anywhere to open the main menu. Touch anywhere Program sources Destinations

34 Page 34 Touchscreen tips Routing a camera to a Video Wall 1. In the touchscreen, touch the Projectors button. 2. At the top of the screen, touch Power ON to turn on the video walls. 3. When the walls are on, touch the Two Vid Windows. 4. In the sources column, touch the Production button. 5. In the Production Switcher screen, route a camera into the switcher. 6. In the destinations column, touch Send to Left Wall or Send to Right Wall. Here s what happens when you touch Send to Left Wall or Send to Right Wall: n The selected video source is routed to the RGB scaler. Output from the scaler is routed to the video wall. n Unconverted video is also sent to the wall. n Audio from the source is sent to the 24-channel mixer (but if the audio is from a computer source, that audio is muted). Why are both RGB and video sent to the walls? It takes the walls a long time to switch between the Two RGB Windows and Two Vid Windows presets (thus, you should avoid switching between these presets during an event). By having both RGB and video routed to the walls, you can transition more smoothly. So: n Use the Two Vid Windows preset when you are routing video cameras or the videoconferencing system to the walls. n Use the Two RGB Windows preset when you need to switch between RGB and video sources.

35 Page 35 Touchscreen tips About the Send to Projector button When you touch the Send to Projector button: n If the selected source is not RGB: Unconverted video is sent to the projector. The projector switches to its video input port. n If the selected source is RGB: RGB is sent to the projector. The projector switches to its RGB input port. n Audio from the selected source is sent to the 24-channel mixer. If the mixer had been receiving video from another source, that source is muted. About the Send to Dais button When you touch the Send to Dais button: n If the selected source is a computer, the signal is sent to LCD displays connected to the wall panels. Only computers can be sent to the dais. n No audio is routed. About the Send to Polycom button When you touch the Send to Polycom (videoconferencing) button: n If the selected source is not a computer: Unconverted video is routed to the Polycom videoconferencing system s main camera input. Visual Concert is turned off. n If the selected source is a computer: RGB is routed to the Polycom VGA input. Visual Concert is turned on. About the Send to Assembly button When you touch the Send to Assembly button: n If the selected source is a computer, the signal is sent to LCD displays connected to the wall panels in the Assembly Area. Only computers can be sent to the Assembly Area. n Audio from the selected source is routed to the 12- channel mixer. If you need to use the Assembly Area to handle overflow from the Auditorium: Route the scalers to the Assembly Area (the scalers output whatever is on the video walls).

36 Page 36 Projectors, displays and screens The touchscreens enable you to manually control: n Video projector in the Auditorium n 3x3 video walls in the Auditorium n Video projector in the Gallery n LCD displays in the Assembly Area n LCD displays in the Green Rooms 1. In the touchscreen, touch the Projectors button. 2. Turn the destination(s) on or off as needed. 3. Then: Note: Turning on a projector automatically lowers the corresponding screen. Turning off a projector automatically raises the corresponding screen. n To control the Video Walls: See Routing a camera to a Video Wall on page 34. n To set the Gallery projector s source type: Touch VGA In (for RGB input) or Vid In (for video input). n To hide a projector s image while keeping the projector on: Touch Image Off. n To restore a projector s hidden image: Touch Image On. n To improve video from computers: Touch APA (Automatic Picture Adjust). Video screens Although the video screens are lowered and raised automatically when the projectors are turned on and off, you can also control them manually. 1. Touch the Screens button. 2. Touch the arrow buttons to raise or lower a screen.

37 Page 37 Projectors, displays and screens

38 Page 38 Computers You can route output from a computer including the rack-mounted computer in the Control Room or a participant-provided laptop computer plugged into the system to any destination. 1. IMPORTANT: When using a laptop computer: a. Attach the laptop to the system at one of the floor boxes or wall plates. b. Turn on the laptop. c. Set the laptop to output to its external monitor port. Note: If the laptop is not set up as described above BEFORE you select it as a source, you will not be able to select it as a source. 2. In the touchscreen, touch the PCs button. 3. Touch the PC you want to route. 4. Touch a destination.

39 Page 39 Computers

40 Page 40 Multistandard videocassette player 1. Load a program videocassette into the Samsung videocassette player in Rack In the touchscreen, touch the World VCR button. 3. Touch a destination. 4. When you are ready to play the tape, touch the button(s) for the desired functions (as shown at right).

41 Page 41 Multistandard videocassette player Rewind Pause Play Stop Fast forward

42 Page 42 Videocassette recorder/player Playing a tape 1. Load a program videocassette into the JVC videocassette recorder/player in Rack In the touchscreen, touch the REC VCR button. 3. Touch a destination. 3. When you are ready to play the tape, touch the button(s) for the desired playback functions (as shown at right). Recording a tape 1. Load a blank videocassette into the JVC videocassette recorder/player in Rack In the touchscreen, touch the REC VCR button. 3. In the lower part of the touchscreen, touch the button for the desired source. 4. When you are ready to record, press the RECORD button.

43 Page 43 Videocassette recorder/player Rewind Pause Play Stop Fast forward Record

44 Page 44 DVD player 1. Load a program DVD into the Marantz DVD player in Rack In the touchscreen, touch the DVD button. 3. Touch a destination. 4. When you are ready to play the DVD, touch the button(s) for the desired functions (as shown at right).

45 Page 45 DVD player Skip reverse (hold for scan) Pause Play Stop Skip forward (hold for scan) Show/hide DVD s on-screen menu Navigate DVD s on-screen menu

46 Page 46 DVD recorder/player Playing a DVD 1. Load a program DVD into the Philips DVD recorder/ player in Rack In the touchscreen, touch the REC DVD button. 3. Touch a destination. 4. When you are ready to play the DVD, touch the button(s) for the desired functions (as shown at right). Recording a DVD 1. Load a blank DVD into the Philips DVD recorder/ player in Rack In the touchscreen, touch the REC DVD button. 3. In the lower part of the touchscreen, touch the button for the desired source. 4. When you are ready to record, press the RECORD button. Note: You must finalize the DVD before it can be played on another DVD player. See the DVD recorder/ player manual for instructions.

47 Page 47 DVD recorder/player Skip reverse (hold for scan) Pause Play Stop Skip forward (hold for scan) Navigate DVD s on-screen menu Record Show/hide DVD s on-screen menu

48 Page 48 Television tuner 1. Touch the Cable TV button. 2. Then: n To view a specific channel: Enter the channel number using the numeric buttons, then touch Enter. n To view channels sequentially: Touch Up or Down. n To view a preset channel: Touch the desired preset button. n To reprogram a preset button: a. Enter the channel number using the numeric buttons, then touch Enter. b. Press and hold the corresponding preset button for 5 seconds.

49 Page 49 Television tuner

50 Page 50 Production video inputs The touchscreens enable you to route up to three video sources into any of three general purpose inputs to the video switcher. Available video sources include: n Video feed from the Closed Commission Hearing Room n I/O plate on Rack 1 n Two floor boxes on the stage n Videoconferencing system n TV tuner n Multistandard VCR n DVD player n Two outputs from the RGB router (via scan converters) Selected video sources pass through a rack-mounted quad monitor before reaching the video switcher. 1. Touch the Production button. 2. For each source you want to route: a. Touch the source in the Send section. b. Touch the video switcher input in the To section. c. Touch Take. If you make a mistake, touch the Cancel button.

51 Page 51 Production video inputs Video sources Video switcher inputs

52 Page 52 Scalers The scalers enable you to send the image being scaled up for the Video Walls to other destinations. No source controls are available for the scalers. 1. Touch the Left Scaler or Right Scaler button. 2. Touch the desired destination.

53 Page 53 Scan converters

54 Page 54 Videoconferencing The videoconferencing system (Polycom) receives video and audio from the far-end participants, and sends local video and audio (from the room or program sources) to the far end. Note: For complete information about the videoconferencing system, refer to the separate VTC user s manual and instruction sheet. 1. Touch the VTC Controls button. 2. If needed, use the on-screen menu controls to set up the videoconferencing system. 3. Dial the remote videoconferencing system: a. Enter the IP address using the numeric keypad. b. Touch Call. 4. During the videoconference: n To select a source to send to the far end: Touch any source button, then touch Send Video or Send VGA as appropriate. n To prevent local audio and video from being sent to the far end: Touch Mic Mute. n To adjust far-end (incoming) volume: Increase or decrease volume using the arrow buttons below the Mic Mute button. n To select or control a near-end source: Touch the source button (along the left side of the screen). Note: Replacing the videoconferencing controls window does not terminate the call. 5. When the conference is over, touch Hang-Up twice.

55 Page 55 Videoconferencing On-screen menu controls

56 Page 56 Volume The touchscreens provide separate volume and mute controls for: n Auditorium audience n Auditorium stage n Gallery n Assembly Area n Green Rooms n Control Room ceiling speakers n Control Room console monitors Note: For best results, set the 24-channel mixer to 0dB and control all volumes with the touchscreens. 1. In the touchscreen, touch the Volume button. 2. Adjust volume or mute audio for the target area.

57 Page 57 Volume

58 Page 58 Routers You can easily configure the audiovisual system s program sources and destinations for a variety of routine events (as described in the previous pages). However, you can also set up custom configurations via the system s two routers: n RGB plus audio router. n Video plus audio router. n To open the Routers window: In the touchscreen s main window, touch Routers. n To set up a custom connection: 1. Locate the source you want to route. It may be connected to the RGB router (upper half of the window), or to the video router (lower half of the window). 2. In the Inputs section touch the source you want to route. 3. Touch Audio, Video or Both. 4. In the Outputs section, touch the destination to which you want to route the source. 5. Touch Take. Tip: If you make a mistake, touch Cancel. 6. Repeat steps 2 through 6 to route other sources. n To close the Routers window: Touch Exit. Connections made in the Routers window remain in effect until overridden by connections made in individual component windows (such as the PCs, VCR and DVD windows, among others). Also, router connections are not affected when the system is shut down. Note: The routers can also be programmed from their front panels. For more information, see the routers user manuals.

59 Page 59 Routers RGB Router 1. Touch a source 2. Touch Audio, Video or Both 3. Touch a destination 4. Touch Take Video Router (operates same as RGB Router)

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61 Page 61 Typical event scenarios

62 Page 62 General information This section provides basic guidelines for setting up: A presentation A meeting or conference Basic guidelines are also provided for recording an event. Keep in mind that this section only provides guidelines. The audiovisual system is extremely versatile, and can be configured in many different ways to accommodate different kinds of events, presenters and audiences. Since every event is unique, setup details are left to the technician(s) supporting each event. Instructions for operating each audiovisual component are beyond the scope of this manual. Please refer to the manufacturer s documentation for details. Preparing for a presentation If the presentation involves visual source material: 1. If the presentation involves video from a tape or DVD: Place the source material in the appropriate player in the Control Room. 2. If the presentation involves output from a PC or other VGA device, connect the PC or device to a floor box or wall plate. 3. Using a touchscreen, turn on the projector(s). This automatically lowers the screen(s). 4. Using a touchscreen, route the appropriate source to a projector, video wall and/or LCD displays. Activate the source device, then assure the source material is projected on the screen. For audio: Tip: A laptop computer may require special setup to output through its monitor connector. If a PC source isn t projected, consult the computer s owner or check its help file. Connect mic(s) to audio inputs in floor boxes or wall plates. Test audio. Set up wireless mic(s) to match wireless mic receiver frequencies. Each wireless mic must be on a different frequency. If the presentation involves an audio cassette or CD, place the source material in the player in the Control Room. If a source is stereo, assure inputs go to the correct left and right outputs. Center pan pots. Test audio sources to assure output through the appropriate speakers. Test assisted listening receivers to assure their audio is the same as program audio.

63 Page 63 Preparing for a meeting or conference Review Preparing for a presentation guidelines and perform those tasks as needed. If the meeting will be using the portable delegate system: 1. Set up the system in the auditorium. 2. Connect the system to a floor box or wall plate. 3. Test audio. If the meeting will involve a feed from the Closed Commission Hearing Room, route the feed through the Video Router to the desired destination (see Routers, earlier in this manual). n If the meeting will involve output to the Multipurpose Room, route sources through the RGB Router to that destination (see Routers, earlier in this manual). Recording an event Review Preparing for a presentation and Preparing for a meeting or conference guidelines and perform those tasks as needed. The system has five wall-mounted video cameras, and can accept video feeds from other cameras. To videotape an event: 1. Use the Video Router to route camera video to the Video Switcher. 2. Test Video Switcher operation. 3. Video Switcher output goes to the Video Router. From the Video Router, send the video signal to a video recording device. Audio from the 24-channel mixer is automatically sent to the Video Router. Set up lighting and props. Test the entire system. If conditions permit, rehearse the event and preview audiovisual operations.

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65 Page 65 Common problems and their solutions

66 Page 66 General troubleshooting tips When a given source doesn t reach the expected destination: Be certain that every component in the path is turned on. Check routing. Trace the signal path to find out which components are working. Swap in a known good source. Swap in a known good destination. Most audio components have meters that indicate audio presence and signal strength. Specific problems Touchscreen No image when touching wireless touchscreen: Touchscreen batteries may be dead. Place touchscreen in charging base. Try again later. Nothing happens when selecting sources and destinations in touchscreen: Try controlling components manually. If that works, touchscreen controller (in Rack 2) may be out of sync. Cycle power to the controller, then try again. If problem persists, a router may be defective. Most video devices have video presence lights that indicate signal availability. Routers have a status mode that shows which inputs are connected to which outputs. The audiovisual system is powered on at all times. If power is lost, the system automatically recovers to its normal operating state.

67 Page 67 Audio Video Wireless mics don t function: Check batteries. Replace or recharge as needed. Make certain each wireless mic and its receiver are on the same frequency. Make certain each wireless mic is on a frequency not being used by another wireless mic. Assisted listening receivers don t function: Check batteries. Replace or recharge as needed. Make certain each receiver and its transmitter are on the same frequency. If separate audio programs are being broadcast (e.g., in different languages), make certain each program is routed to a different transmitter. Audio hum from device connected to a floor box or wall plate: Plug source equipment into a different AC outlet. No video output from projector: Using touchscreen, make certain projector is on. Using touchscreen, make certain projector is selected as destination. Projector may not be receiving AC power. Projectors are on a separate circuit from other audiovisual components, so Control Room may have power while projectors don t have power. Check with building engineers. Poor video quality: Route video to a different destination. The LCD Monitors in Rack 3 are a convenient video destination. Poor PC output quality: Check connections where PC connects to floor box or wall plate. Video output is shifted in frame, or is wrong size: Adjust position and size controls on scan converter (Rack 1).

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