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2U Digital Stereo Speaker Monitor
(Document P/N 821507, Rev-D)
with AC-3 and AES/EBU Inputs on
XLR and BNC, Selected Digital to Analog
Outputs on XLR, Six 53-Segment
Level Meters, and Phase Indication
Title and Contents ........................................................
..........................................................................
Section 1: Features, Specs, and Installation ......
Description and Features .......................................................
Applications and Specifications ..............................................
Installation .............................................................................
Section 2: Operation ....................................................
Front Panel Features ..............................................................
Rear Panel Features ...............................................................
Audio Amplifier and Speaker Configuration ...........................
Balance Control Characteristics ..............................................
Section 3: Technical Information ............................
General Technical information ...............................................
Level Meter Description and Specifications.................................
ATSC/DVB-3 Block Diagram ..................................................
© 2005 Wohler Technologies Inc. ALL rights reserved
ATSC/DVB-3
User Manual
CONTENTS
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Summary of Contents for Wohler ATSC/DVB-3
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Page 1: Table Of Contents
Rear Panel Features ............... Audio Amplifier and Speaker Configuration ......Balance Control Characteristics ..........Section 3: Technical Information ......General Technical information ..........Level Meter Description and Specifications......... ATSC/DVB-3 Block Diagram ..........© 2005 Wohler Technologies Inc. ALL rights reserved... -
Page 2: Introduction
Introduction Congratulations on your selection of a Wohler Technologies product. We are confident it represents the best performance and value available, and we guarantee your satisfaction with it. If you have questions or comments you may contact us at: Wohler Technologies, Inc. -
Page 3: Installation
ATSC/DVB-3 User Manual P/N 821507 Rev-D Section 1 General Features, Specifications, and Installation Description Features Applications General Specifications Installation © 2005 Wohler Technologies Inc. ALL rights reserved... - Page 4 ATSC/DVB-3 Front Panel Description The ATSC/DVB-3 is a powered stereo monitor designed specifically for flexible, comprehensive monitoring of the six audio channels associcated with ATSC/DVB programming. The unit is 2RU in size, for excellent fidelity without using excessive rackspace in the critical "operating zone"...
- Page 5 The ATSC/DVB-3 is ideally suited for use in VTR bays, mobile production vehicles, teleconferencing installations, multimedia systems, satellite links and cable TV facilities, and on-air radio studios. Designed and manufactured in the U.S., the ATSC/DVB-3 is backed by a strong warranty and a satisfaction guaranteed return policy.
- Page 6 Connection of the audio feeds is straightforward. Please refer to the system block diagram on page 18 for clarification of the general signal paths into and out of the ATSC/DVB-3 unit. Inputs are via either BNC or XLR connectors. BNC inputs are 75Ω Ω Ω Ω Ω unbalanced; XLRs are 110Ω Ω Ω Ω Ω balanced. Care should be exercised to avoid mis-matched cable types and other similar causes of undesired reflections in RF signal systems.
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Page 7: Section 2: Operation
ATSC/DVB-3 User Manual P/N 821507 Rev-D Section 2 Operation Front Panel Features Rear Panel Features © 2005 Wohler Technologies Inc. ALL rights reserved... - Page 8 Section 2: Operation Front Panel Features Please refer to Figure-2a on the facing page to familiarize yourself with the front panel features of the ATSC/DVB-3 unit. The following sections describe these features and are referenced, by number, to Figure-2a. Speakers (Left, Right, and Woofer) The ATSC/DVB-3 internal speaker system is comprised of two mid-range tweeter speakers (left and right) and one woofer speaker (middle).
- Page 9 ATSC/DVB-3 User Manual P/N 821507 Rev-D Section 2: Operation Figure-2a: Front Panel Features © 2005 Wohler Technologies Inc. ALL rights reserved...
- Page 10 The LED will glow AMBER if such signals are present. In the absence of such data streams, the LED will not be lit and the switch will be nonfunctional. © 2005 Wohler Technologies Inc. ALL rights reserved...
- Page 11 ATSC/DVB-3 User Manual P/N 821507 Rev-D Section 2: Operation Figure-2a: Front Panel Features © 2005 Wohler Technologies Inc. ALL rights reserved...
- Page 12 ATSC/DVB-3 User Manual P/N 821507 Rev-D Rear Panel Features Please refer to Figure-2b on the facing page to familiarize yourself with the rear panel features of the ATSC/DVB-3 units. The following sections describe these features and are referenced, by letter, to Figure-2b.
- Page 13 Section 2: Operation ATSC/DVB-3 User Manual P/N 821507 Rev-D Figure-2b: Rear Panel Features © 2005 Wohler Technologies Inc. ALL rights reserved...
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Page 14: Audio Amplifier And Speaker Configuration
Note that if the balance control is rotated completely to the left, the volume in both the left (or right) speaker channel and woofer speaker channel will increase slightly to maintain overall output level. The converse of the above is true if the balance control is rotated to the right. © 2005 Wohler Technologies Inc. ALL rights reserved... -
Page 15: Section 3: Technical Information
ATSC/DVB-3 User Manual P/N 821507 Rev-D Section 3 Technical Information General Technical Observations Level Meter Description and Specifications ATSC/DVB-3 Block Diagram NOTE: PCB layout and schematic support documentation is available upon request. © 2005 Wohler Technologies Inc. ALL rights reserved... - Page 16 (common) OR THE GROUNDED LEAD OF ANY TEST EQUIPMENT so as not to short out the power amps. The side speaker outputs are single-ended, so these precautions are not necessary for them. © 2005 Wohler Technologies Inc. ALL rights reserved...
- Page 17 +4 dBu. Dynamic range for these 53-segment meters is 65 dB. Scales Please refer to the figure below for an illustration showing the standard scale for the 53-segment bargraph display used in the ATSC/DVB-3 audio monitor. Custom variations of this scale are also available on special order.
- Page 18 ATSC/DVB-3 User Manual P/N 821507 Rev-D Section 3: Technical Information © 2005 Wohler Technologies Inc. ALL rights reserved...
- Page 19 ATSC/DVB-3 User Manual P/N 821507 Rev-D Section 3: Technical Information NOTES: © 2005 Wohler Technologies Inc. ALL rights reserved...
- Page 20 Wohler Technologies, Inc. 31055 Huntwood Avenue 31055 Huntwood Avenue Hayward, CA 94544 Hayward, CA 94544 1-888-596-4537 Fax: (510) 870-0811 Phone: (510) 870-0810 Fax: (510) 870-0811 web: www.wohler.com US Toll-Free: 1-888-596-4537 e-mail: support@wohler.com www.wohler.com support@wohler.com © 2005 Wohler Technologies Inc. ALL rights reserved...