Wohler AMP2A-VTR Скачать руководство пользователя страница 19 | Manualshive

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© 2004 Wohler Technologies Inc. ALL rights reserved

19

AMP2A-VTR

and

AMP2A-VTR2

User Manual P/N

821580

REV-

B

Internal Level Meter 10-Position
DIP Switch Module (see page 18)

Rear Panel Level Meter 6-Position
DIP Switch Module
(see page 17)

Level Meter DIP Switch Locations

919174 PCB

Section 3:

Technical Information

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Содержание AMP2A-VTR

Страница 1: ...ion and Features Applications and Specifications Installation Section 2 Operation Front Panel Features Rear Panel Features AudioAmplifierandSpeakerConfiguration Section 3 Technical Information General Technical Observations Level Meter Rear Panel 6 Position DIP Switch Settings Level Meter Internal 10 Position DIP Switch Settings Level Meter DIP Switch Locations Level Meter Alternative Scales Level...

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: ...nc ALL rights reserved 3 AMP2A VTR and AMP2A VTR2 User Manual P N 821580 REV B Sect 1 General Features and Specifications General Features and Specifications Description Features Applications Specifications Installation Section 1 ...

Страница 4: ...s All AMP2 Series units contain three audiophile quality drivers and three power amplifiers two amplifiers and two speakers that reproduce midrange and high frequency information in stereo and a third amp driver combination and speaker that handles summed Low Frequency LF information below the 500 Hz crossover point The AMP2 Series unique audio design has two important advantages First it provides...

Страница 5: ...umption AverageMaximum ACMainsInput Phoenix Terminal Block 3 pin male 90KΩ balanced 104 dB SPL 14 W transient 10 W continuous 35 W transient 25 W continuous 80 Hz 16 kHz 5 dB 10 dB 40 Hz 20 kHZ 0 dBv balanced 10 dB unbalanced Better than 68 dB below full output Less than 0 15 at any level below input threshold 6 or less at worst case frequencies above 120 Hz including cabinet resonance typically l...

Страница 6: ... external to the unit Mechanical Bracing Even though the unit is fairly heavy the chassis 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 C...

Страница 7: ...04 Wohler Technologies Inc ALL rights reserved 7 AMP2A VTR and AMP2A VTR2 User Manual P N 821580 REV B Operation Front Panel Features Rear Panel Features Audio Amplifier and Speaker Configuration Section 2 ...

Страница 8: ...headphone Clock wise rotation of this control increases the loudness of the monitored audio in both speaker channels Headphone Jack This jack accepts a standard 1 4 phone type stereo plug When you plug in headphones the speakers will mute Speaker Assign Channel Buttons Left and Right Use the left bank of four buttons to assign one to four of the four available channels for monitoring from the left...

Страница 9: ... 2004 Wohler Technologies Inc ALL rights reserved 9 AMP2A VTR and AMP2A VTR2 User Manual P N 821580 REV B Section 2 Operation Figure 2a Front Panel Features AMP2A VTR2 FrontPanel AMP2A VTR FrontPanel ...

Страница 10: ...age phase condition by glowing GREEN for in phase signals or RED for out of phase signals In general it is sufficient to regard the AVG LED as adequate for proper phase monitoring While it is normal for stereo signals to contain some intermittant instantaneous out of phase and in phase conditions FAST LEDs a steady RED glow of the AVG LED almost always indicates an out of phase alarm condition Bal...

Страница 11: ... 2004 Wohler Technologies Inc ALL rights reserved 11 AMP2A VTR and AMP2A VTR2 User Manual P N 821580 REV B AMP2A VTR2 FrontPanel AMP2A VTR FrontPanel Figure 2a Front Panel Features Section 2 Operation ...

Страница 12: ...e 3 pin male Phoenix connectors INPUTS CHANNEL 1 4 GROUP 1 2 accept standard analog audio signals and are configured for balanced 90K Ω connections The two banks groups of input connectors are interleaved and either group of four inputs GROUP 1 or GROUP 2 may be selected for monitoring using the 2 position Group Select Switch on the front panel Item 10 page 10 Channel input numbers are silk screen...

Страница 13: ... 2004 Wohler Technologies Inc ALL rights reserved 13 AMP2A VTR and AMP2A VTR2 User Manual P N 821580 REV B Section 2 Operation Figure 2b Rear Panel Features AMP2A VTR2 RearPanel AMP2A VTR RearPanel ...

Страница 14: ... 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 A left input and a voice speaking Spanish is fed to the B right input then the left speaker channel will repro...

Страница 15: ...on General Technical Observations Level Meter Rear Panel 6 Position DIP Switch Settings Level Meter Internal 10 Position DIP Switch Settings Level Meter DIP Switch Locations Level Meter Alternative Scales Level Meter Phase Correlation Feature AMP2A VTR Interconnect Block Diagram AMP2A VTR2 Interconnect Block Diagram Section 3 ...

Страница 16: ...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 operational module separate f...

Страница 17: ...evel displayed on the LED bargraphs Factory setting is 4 dB See DIP switch diagram below for settings Bargraph Display Mode DIP switch sections 4 and 5 determine how peak levels are displayed for the associated meters on the front panel There are four possible settings VU Only VU PPM Floating Segment PPM Only and PPM PPM Floating Segment The VU Only selection has a VU floating segment when a Peak ...

Страница 18: ...s 2 dB Return Fall Time is 2 8 seconds 24 dB Integration Rise Time is 5 ms 2 dB Return Fall Time is 1 5 seconds 20 dB Integration Rise Time is a single sample Return Fall Time is 1 5 seconds 20 dB IEC268 10 Type 1 IEC268 10 Type 2 DIN 4506 Single Sample Level Meter Internal 10 Position DIP Switch Settings This 10 position DIP switch is accessed by removing the top cover of the AMP unit and is loca...

Страница 19: ...MP2A VTR and AMP2A VTR2 User Manual P N 821580 REV B Internal Level Meter 10 Position DIP Switch Module see page 18 Rear Panel Level Meter 6 Position DIP Switch Module see page 17 Level Meter DIP Switch Locations 919174 PCB Section 3 Technical Information ...

Страница 20: ...lation region is always OFF to serve as a marker The Phase Correlation display is visible ONLY so long as the VU audio level is above this blank segment tenth from the bottom Level Meter Phase Correlation Feature 15 50 30 40 35 26 22 18 4 6 10 12 2 2 0 15 8 6 12 1 5 0 correlation 1 5 0 Section 3 Technical Information Level Meter Alternative Scales The standard scale used on the AMP2A VTR and AMP2A...

Страница 21: ... 2004 Wohler Technologies Inc ALL rights reserved 21 AMP2A VTR and AMP2A VTR2 User Manual P N 821580 REV B AMP2A VTR Interconnect Block Diagram Section 3 Technical Information ...

Страница 22: ... 2004 Wohler Technologies Inc ALL rights reserved 22 AMP2A VTR and AMP2A VTR2 User Manual P N 821580 REV B AMP2A VTR2 Interconnect Block Diagram Section 3 Technical Information ...

Страница 23: ... 2004 Wohler Technologies Inc ALL rights reserved 23 AMP2A VTR and AMP2A VTR2 User Manual P N 821580 REV B NOTE PCB layout and schematic support documentation is available upon request NOTES ...

Страница 24: ...V B Wohler Technologies Inc 31055 Huntwood Avenue 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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