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© 2007

Wohler Technologies, Inc.

   ALL rights reserved

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.

31055 Huntwood Avenue

Hayward, CA  94544

Phone:

(510) 870-0810

     Fax: 

(510)  870-0811

US Toll-Free: 

1-888-596-4537

www.wohler.com    [email protected]

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.

9)      Do not defeat the safety purpose of the polarized or grounding-type plug.  A polarized plug has two blades

with one wider than the other.  A grounding type plug has two blades and a third grounding prong.  The
wide blade or the third prong are provided for your safety.  If the provided plug does not fit into your outlet,
consult an electrician for replacement of the obsolete outlet.

10)   Protect the power cord from being walked on or pinched, particularly at plugs convenience receptacles

and the point where they exit from the apparatus.

11)   Only use attachments/accessories specified by the manufacturer.

12)  Use only with the cart stand, tripod, bracket, or table specified by the manufacturer, or sold with the

apparatus.  When a cart is used, use caution when moving the cart/apparatus combination to avoid injury
from tip-over.

13)   Unplug this apparatus during lightning storms or when unused for long periods of time.

14)  Refer all servicing to qualified service personnel.  Servicing is required when the apparatus has been

damaged in any way, such as when power-supply cord or plug is damaged, liquid has been spilled or
objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.

15)  Do not expose this apparatus to rain or moisture.

16)  The apparatus shall be connected to a mains socket outlet with a protective earthing connection.

Important Safety Instructions

CAUTION!

In products featuring an audio amplifier and speakers, the surface at the side of the
unit, where the audio amplifier heat sink is internally attached, may get very hot after
extended operation.  When operating the unit excercise caution when touching this
surface and ensure that external materials which may be adversely affected by heat
are not in contact with it. There is a Hot Surface label (see diagram) attached to the
aforementioned surface of the product.

Содержание ATSC/DVB-3

Страница 1: ...l Characteristics Section 3 Technical Information General Technical information Level Meter Description and Specifications ATSC DVB 3 Block Diagram ATSC DVB 3 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 1 2 3 4 5 6 7 8 12 14 14 15 16 17 18 CONTENTS ...

Страница 2: ...eing walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip ...

Страница 3: ...LL rights reserved 3 ATSC DVB 3 User Manual P N 821507 Rev D Sect 1 General Features and Specifications General Features Specifications and Installation Description Features Applications General Specifications Installation Section 1 ...

Страница 4: ... wide range LED bargraph level meters are provided for all six channels for very accurate metering 53 bicolor segments spanning a range of 65 or 90 dB simultaneously display signal levels according to both the PPM andVU standards An adjustable duration hold of the peak PPM value may also be displayed Both Left Right and Front Surround Phase Polarity LED indications are provided to alert of possibl...

Страница 5: ...s SimultaneousVU bar andPPM dot 0dBvbalanced 26dBvbalanced 104dBSPL 80 Hz 16 kHz 5 dB 10 dB 40 Hz 20 kHZ 14 W transient 10 W continuous 35 W transient 25 W continuous Lessthan0 15 atanylevelbelow limit threshold 6 orlessatworstcasefrequencies above120Hz includingcabinet resonance typicallylessthan1 5 Betterthan 68dBbelowfulloutput Lessthan0 8Gaussanyadjacent surface Balanced XLR 60 W 100 220VAC 50...

Страница 6: ...is securely attached to the front panel at eight points along its surface not just at the four corners of the chassis ears This feature will reduce or eliminate rear bracing requirements in many mobile portable applications The weight of internal components is distributed fairly evenly around the unit Audio Connections Connection of the audio feeds is straightforward Please refer to the system blo...

Страница 7: ... 2005 Wohler Technologies Inc ALL rights reserved 7 ATSC DVB 3 User Manual P N 821507 Rev D Operation Front Panel Features Rear Panel Features Section 2 ...

Страница 8: ... side of the front panel three on the right side Dynamic range for these meters is 65 dB and they are able to display signal levels using both PPM and VU standards An adjustable duration hold of peak PPM value may also be displayed Each meter is labeled according to the standard Surround Sound nomenclature left front right front center low frequency effects left surround and right surround See pag...

Страница 9: ... 2005 Wohler Technologies Inc ALL rights reserved 9 ATSC DVB 3 User Manual P N 821507 Rev D Section2 Operation Figure 2a Front Panel Features ...

Страница 10: ...ut of phase signals In general observing the AVG LED alone is sufficient for proper phase monitoring While it is normal for stereo signals to contain some intermittant instantaneous out of phase and in phase conditions IN and OUT LEDs a steady RED glow of the AVG LED indicates an out of phase alarm condition Headphone Jack This jack accepts a standard 1 4 phone type stereo plug When you plug in he...

Страница 11: ... 2005 Wohler Technologies Inc ALL rights reserved 11 ATSC DVB 3 User Manual P N 821507 Rev D Section2 Operation Figure 2a Front Panel Features ...

Страница 12: ...d 2 This DIP switch sets the termination characteristics of the Source 1 and Source 2 balanced and unbalanced input connectors There are two switches one for the Source 1 balanced and unbalanced inputs S1 and a second switch for the Source 2 balanced and unbalanced inputs S2 In the event that signals entering Source 1 or 2 are connected to downstream equipment then the respective DIP switch should...

Страница 13: ... 2005 Wohler Technologies Inc ALL rights reserved 13 ATSC DVB 3 User Manual P N 821507 Rev D Section2 Operation Figure 2b Rear Panel Features ...

Страница 14: ...dio amplifier speaker configuration Balance Control Characteristics The balance control attenuates the signal from the source so that the left and right bass frequencies summed together and reproduced in the woofer channel will also respond to the balance control Example If an audio signal of a voice speaking English is fed to the left A input and a voice speaking Spanish is fed to the right B inp...

Страница 15: ...15 ATSC DVB 3 User Manual P N 821507 Rev D Technical Information General Technical Observations Level Meter Description and Specifications ATSC DVB 3 Block Diagram Section 3 NOTE PCB layout and schematic support documentation is available upon request ...

Страница 16: ...e immediately after the input stage and before the volume control section The signal pick off for the headphones is after the volume and balance controls Speaker muting is controlled by circuitry that senses connection of headphones to the jack The power amps are attached to an aluminum heatsink plate which is also connected to the circuit common for these devices The heatsink plate forms an opera...

Страница 17: ... 158 4 mm x 0 04 1 mm Segment pitch is 0 039 0 99 mm Each LED bargraph display section visually indicates the dynamic changes within the audio signal source s being monitored All bargraph LED segments are of the tri color type green amber red Ballistics for these meters are factory set to display a single floating PPM dot continuous decay of 20 dB in 1 5 seconds above a VU bar each segment s color...

Страница 18: ... 2005 Wohler Technologies Inc ALL rights reserved 18 ATSC DVB 3 User Manual P N 821507 Rev D Section 3 Technical Information ATSC DVB 3 Block Diagram ...

Страница 19: ... 2005 Wohler Technologies Inc ALL rights reserved 19 ATSC DVB 3 User Manual P N 821507 Rev D NOTES Section 3 Technical Information ...

Страница 20: ...hler Technologies Inc 31055 HuntwoodAvenue Hayward CA 94544 1 888 596 4537 Fax 510 870 0811 web www wohler com e mail support wohler com Wohler Technologies Inc 31055 Huntwood Avenue Hayward CA 94544 Phone 510 870 0810 Fax 510 870 0811 US Toll Free 1 888 596 4537 www wohler com support wohler com ...

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