User manual

ManualsBrandsWohler ManualsComputer equipmentVMSDA-1

Title and Contents ........................................................

Introduction ..........................................................................

Section 1: Features, Specs, and Installation ......

Description and Features .......................................................

Applications and General 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 ...............................................

VM Main PCB (P/N 919141-1)Trimpot Locations.....................

VM SDI Digital Series Interconnect Block Diagram .................

VM SDI Digital Series

1U Analog/Digital Audio Monitors

(VMSDA-1 and VMMDA-1)

Document P/N 821625 Rev-A

with One SDI or SDI and HD-SDI Input and Re-clocked Output

on BNC, One AES input on BNC or Phoenix, Analog input on

"mini" Phoenix, SDI Group Eight Channel Pair selection, Stereo

Analog Output of Selected Source on "mini" Phoenix,

Two 10-Segment Level Meters, and Phase Indication

CONTENTS

User Manual

Summary of content (18 pages)

PAGE 1
VM SDI Digital Series 1U Analog/Digital Audio Monitors (VMSDA-1 and VMMDA-1) Document P/N 821625 Rev-A with One SDI or SDI and HD-SDI Input and Re-clocked Output on BNC, One AES input on BNC or Phoenix, Analog input on "mini" Phoenix, SDI Group Eight Channel Pair selection, Stereo Analog Output of Selected Source on "mini" Phoenix, Two 10-Segment Level Meters, and Phase Indication User Manual CONTENTS Title and Contents ........................................................ 1 Introduction .............
PAGE 2
Important Safety Instructions 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. 6) Clean only with dry cloth. 7) Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. 8) Do not install near any heat source such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
PAGE 3
VM SDI Digital Series User Manual P/N 821625 Rev-A Sect. 1: General Features and Specifications Section 1 General Features, Specifications, and Installation Description Features Applications General Specifications Installation © 2005 Wohler Technologies Inc.
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VM SDI Digital Series User Manual P/N 821625 Rev-A Section 1: General Features, Specifications, and Installation VM SDI Digital Series Analog/Digital Audio Monitors Models: VMSDA-1 and VMMDA-1 VMSDA-1 Front Panel VMMDA-1 Front Panel Description The single-rackspace VM SDI Digital Series audio monitors permit stereo monitoring with excellent fidelity exceeding that of ordinary monitors.
PAGE 5
VM SDI Digital Series User Manual P/N 821625 Rev-A Section 1: General Features, Specifications, and Installation Applications The VM SDI Digital Series of audio monitors are ideally suited to provide high quality analog/digital audio monitoring in a very compact form. Ideal for use in VTR bays, mobile production vehicles, teleconferencing installations, multimedia systems, satellite links, cable TV facilities, and on-air radio studios, both models are manufactured in the U.S.A.
PAGE 6
VM SDI Digital Series User Manual P/N 821625 Rev-A Section 1: General Features, Specifications, and Installation Installation Mounting The unit should be mounted where convenient for operating persons, ideally at approximately ear level for best high frequency response. Its superior magnetic shielding eliminates concerns about locating it adjacent to most types of CRT monitors, including even high-resolution color monitors.
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VM SDI Digital Series User Manual P/N 821625 Rev-A Section 2 Operation Front Panel Features Rear Panel Features © 2005 Wohler Technologies Inc.
PAGE 8
VM SDI Digital Series User Manual P/N 821625 Rev-A 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 VM SDI Digital Series units. The following sections describe these features and are referenced, by number, to Figure-2a. Note that even though only the VMMDA-1 front panel is shown, features and operation are identicle for the VMSDA-1.
PAGE 9
VM SDI Digital Series User Manual P/N 821625 Rev-A Section 2: Operation Figure-2a: Front Panel Features © 2005 Wohler Technologies Inc.
PAGE 10
VM SDI Digital Series User Manual P/N 821625 Rev-A Section 2: Operation Rear Panel Features Please refer to Figure-2b on the facing page to familiarize yourself with the rear panel features of the VM SDI Digital Series units. The following sections describe these features and are referenced, by letter, to Figure-2b. A Power Connector Attach the supplied IEC-320 power cord between this connector and mains power.
PAGE 11
Section 2: Operation VM SDI Digital Series User Manual P/N 821625 Rev-A Figure-2b: Rear Panel Features © 2005 Wohler Technologies Inc.
PAGE 12
VM SDI Digital Series User Manual P/N 821625 Rev-A Section 2: Operation Audio Amplifier and Speaker Configuration General Description All models in the VM Series contain high performance transducers (speakers) driven by three power amplifiers; two amplifier/ driver combinations handle midrange and high frequency information in the left and right (stereo) speaker channels, while the third amplifier channel sums the left and right channel information below the 500 Hz crossover point in the woofer (bass) spe
PAGE 13
VM SDI Digital Series User Manual P/N 821625 Rev-A Section 3 Technical Information General Technical Observations VM Main PCB Trimpot Locations VM SDI Digital Series Interconnect Block Diagram NOTE: PCB layout and schematic support documentation is available upon request. © 2005 Wohler Technologies Inc.
PAGE 14
VM SDI Digital Series User Manual P/N 821625 Rev-A Section 3: Technical Information General Technical Observations General Mechanical Observations Elimination of cabinet and component sympathetic vibrations (resonances) requires considerable attention to mechanical details. Because of this, and the physical constraints of the speakers' acoustic enclosures, even minor changes to any of the mechanical details of the unit can seriously impair its acoustic performance.
PAGE 15
VM SDI Digital Series User Manual P/N 821625 Rev-A Section 3: Technical Information VM Main PCB (P/N 919141-1) Trimpot Locations © 2005 Wohler Technologies Inc.
PAGE 16
VM SDI Digital Series Block Diagram VM SDI Digital Series User Manual P/N 821625 Rev-A 16 © 2005 Wohler Technologies Inc.
PAGE 17
VM SDI Digital Series User Manual P/N 821625 Rev-A Section 3: Technical Information NOTES: © 2005 Wohler Technologies Inc.
PAGE 18
VM SDI Digital Series User Manual P/N 821625 Rev-A Wohler Technologies, Inc. Wohler 31055Technologies, Huntwood Avenue Inc. 31055 Huntwood Avenue Hayward, CA 94544 Hayward, CA 650 589-5676 Fax: 65094544 589-1355 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 18 © 2005 Wohler Technologies Inc.