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Summary of Contents for Wohler AMP1-8-M
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Page 1: User Guide
AMP1-8-M 1RU, 8-Channel, 3G/HD/SD-SDI Audio Monitor User Guide Software Release: V5.xx Part Number 821815, Revision A... - Page 2 In no event will Wohler Technologies, Inc. be liable for direct, indirect, special, incidental, or consequential damages resulting from any defect in the hardware, software, or its documentation, even if advised of the possibility of such damages.
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Page 3: Table Of Contents
TABLE OF CONTENTS Contents User Guide ..................1 TABLE OF CONTENTS ................3 Contents ....................... 3 CHAPTER 1: Quick Start ............... 5 Introduction ....................5 Overview .................... 5 Safety ......................5 Instructions ..................5 ... - Page 4 Audio Formats ..................... 28 Technical Functional Overview ................ 29 APPENDIX A: Upgrading the AMP1-8-M Using a USB Flash Drive ....30 Introduction ....................30 Upgrading the Software Using a USB Flash Drive ..........30 ...
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Page 5: Chapter 1: Quick Start
Introduction Overview The AMP1-8-M is a 1RU, 8-channel, 3G/HD/SD-SDI audio monitor. This unit comes with two 2.4” graphics screens that work together to display 8 channels of audio level metering. You can both visibly and audibly monitor either the first four pairs (Channels 1 thru 8) or the second four pairs (Channels 9 thru 16) of the selected 3G/HD/SD-SDI input signal. -
Page 6: Safety Symbols
under all of the following conditions: a. The equipment has been damaged in any way, such as when the power- supply cord or plug is damaged. b. Liquid had been spilled or objects have fallen onto the equipment. c. The equipment has been exposed to rain or moisture. d. -
Page 7: Mechanical Bracing
serious enough to interfere with the sound quality of the unit. If you experience sympathetic vibrations, use thin card stock, felt, foam, or weather-stripping between the vibrating surfaces. Tie loose cables securely with cable ties. Mechanical Bracing The 1RU chassis is securely attached to the front panel. In addition, the chassis has mounting tabs through which you attach it to the rack rail. -
Page 8: Front Panel
Try restarting the unit, and if the problem persists, contact Wohler Technical Support. The LED is also a solid yellow when the AMP1-8-M is first starting up. Yellow The LED blinks yellow when a firmware update is in progress. -
Page 9: Rear Panel
AMP1-8-M. Rear Panel Figure 1–2: Rear Panel Layout 1. Power: The AMP1-8-M uses a standard IEC power cord for the 100 to 240 VAC ±10%, 50/60 Hz power connection. 2. 3G/HD/SD-SDI Inputs: These two BNC connectors accept the 3G/HD/SD-SDI input signals. -
Page 10: Chapter 2: Operation
This chapter describes how to operate the AMP1-8-M. Main Screen After powering up the AMP1-8-M and connecting an SDI input, you should see the Main Screen , which will be similar to the one shown in Figure 2–1 below. Fig 2–1: Main Screen... - Page 11 Attribute Symbol Description Meaning Channel is not selected by the Dark Blue Triangle Channel Select buttons and cannot or Square be heard Channel contains a bitstream Downward Pointing instead of audio and cannot be Red Triangle heard 2. Level Meters: The selected eight channels are metered. 3.
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Page 12: Usb Port Functionality
You can copy configuration files to and from your unit by using a flash drive connected to the USB port. Immediately after connecting the flash drive to your AMP1-8-M, the Flash Drive Connected screen displays (interrupting any current functions except an Ethernet connection) as shown in Figure 2-3: below. -
Page 13: Getting A Configuration From The Flash Drive
3. Remove the flash drive from the USB port. Save System Configuration to Flash Drive 1. To copy a file to the flash drive from the AMP1-8-M, press Save from the Flash Drive Connected screen. The Save to Flash Drive screen will display as shown in Figure 2–5. -
Page 14: Update Menu
2. Press the file number ( File 1 through File 7 ) of the file you want to copy from your flash drive. Once the copy process completes, the Flash Drive Connected screen re-displays. 3. Remove the flash drive from the USB port. Update Menu This button only appears if the inserted flash drive contains a software update files. -
Page 15: Chapter 3 - Internal Menu System
CHAPTER 3 - Internal Menu System Introduction This chapter provides an in-depth description of the menus and their respective options and functions. Menu Navigation Overview You can launch the menu system by pressing and holding the Adjust encoder for at least three seconds. -
Page 16: Audio Menu
Audio Menu This menu allows adjustment of various audio related settings. Buttons 1, 2, and 3 together form a Speaker Mute selector. The default Speaker Mute is Mute with Headphone. Buttons 5 and 6 together form an Analog Output selector. The standard Analog Output is Fixed Line Level. -
Page 17: Speaker Control Options Menu
Speaker Control Options Menu The Speaker Control Options menu allows configuration of the Volume and Balance control knobs for different functions and provides tone controls for the internal loudspeakers. Figure 3–3: Speaker Control Options Menu 1. Volume Controls: You can use this option to change the master volume and the balance knob to become Left Volume and Right Volume controls. -
Page 18: Select And Detect Options Menu
Select and Detect Options Menu This Select and Detect Options menu allows adjustment of how channel selections affect the muting or summing of other channels, how to handle Dolby detection, and how to adjust audio delay in conjunction with other monitoring equipment for issues of lip-syncing. - Page 19 3. Dolby Detect: Enabling Dolby Detect means an incoming digital stream is monitored for certain keywords called "Pa Headers." This method of detecting Dolby streams is very effective, unless the stream has been altered since being created. Alterations such as volume control, dither, and sample- rate conversion will also scramble the Pa headers, making this detection method unreliable.
- Page 20 (in 1-minute increments) and from 2 hours to 24 hours (in 1-hour increments). The default setting is 8 hours. If the AMP1-8-M is in operation for the screen saver timeout period and no front panel controls have been turned or pressed, the screens will dim by a certain amount.
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Page 21: Meter Type And Reference Menu
Meter Type and Reference Menu The Meter Type and Reference Menu allows you to define the level meter scale, float, bar and reference. Figure 3–6: Meter Type and Reference Menu 1. Scale: Pressing this button and then rotating the Adjust encoder steps through the scales for the level meters. - Page 22 Table 3–2: Meter Timings Fall Ballistics Rise Level Change Time Not Specified 5 ms to reach -2 IEC Type I dB of settled -20 dB 1.7 sec. reading 10 ms to reach -2 IEC Type II dB of settled -24 dB 2.8 sec reading None...
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Page 23: Meter Segment Menu
Meter Segment Menu On the Meter Segment Menu , you can customize your level meter segments thresholds and colors. Figure 3–7: Meter Segment Menu 1. Upper Segment: Pressing this button and then rotating the Adjust encoder adjusts the division between the upper and middle segments. You can adjust the color boundary in 1 dBr increments, and it has the same range as the bottom and top limits of the meter. -
Page 24: Version And Ethernet Menu
1. Factory Default: Pressing this button opens a cautionary window to verify that you really want to restore the AMP1-8-M setup to the factory default. If you press the Factory Default button again, the action proceeds and the unit will restart. - Page 25 Important: If the IP information has been changed, the unit will have to restart. A warning diamond will display, and you will need to confirm or cancel before proceeding. If the information in the IP fields is not correct, the changes made in the IP fields will be ignored.
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Page 26: Chapter 4 - Features And Specifications
CHAPTER 4 - Features and Specifications Introduction This chapter lists the features and specifications of the AMP1-8-M. Features 1. Totally digital system architecture with high fidelity Class D amplifiers 2. Volume and Balance controls can optionally become Left Volume and Right Volume controls 3. -
Page 27: Compliance
Compliance All components comply with UL, CE, and RoHS specifications. The AMP1-8-M meets FCC Part 15 compliance. Specifications Table 4-1: Specifications Specification Values / Domains Power requirements 100 V to 240 V AC ± 10%, 50/60Hz Power consumption 60 Watts 1.75”... -
Page 28: Audio Formats
Better than -68 dB below full output Electrical Distortion <0.05% at any level below limit threshold Audio Formats All of the audio formats listed in Table 4–2 below are available for monitoring in the AMP1-8-M. Table 4-2: Audio Formats Standard Format Rate 29.97; 25 720p 23.98;... -
Page 29: Technical Functional Overview
Technical Functional Overview Figure 4-1 illustrates the overall functionality of the AMP1-8-M monitor. Figure 4–1: AMP1-8-M Block Diagram Note: Stereo phase indication measurement occurs in the signal chain before it is routed to the speakers. Page 29... -
Page 30: Appendix A: Upgrading The Amp1-8-M Using A Usb Flash Drive
Important: When a new version becomes available, software updates may be obtained in .zip file format from the Wohler Website. Download this zip file, unzip it, and place the "AMP1-8-MProgrammingFiles" folder on a standard USB flash drive. Insert the flash drive into the unit, and follow the instructions below. - Page 31 4. All the firmware files on the USB drive will be read and validated. This will take a few minutes, and progress screens are presented. Once the validation is finished the following menu appears: Figure A–2: Flash Drive Software Update Screen 5.
- Page 32 Alternatively, you can press the Replace Software Unconditionally button to install the software contained in the flash drive into the AMP1-8-M, even if it the same version already is installed and even if the flash drive version is a lower version than what is already installed.
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