Atlas PA702 Скачать руководство пользователя страница 10

 

Specifications are subject to change without notice

 

AtlasSound.com

1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A.   •    TELEPHONE: (800) 876-3333   •   FAX: (800) 765-3435

©2007 ATLAS SOUND LP 

Printed in China 

 

ATS002604 RevA 03/07 

 

OWNER'S MANUAL

10

ATLAS SOUND PA702, 2-CHANNEL 70W POWER AMPLIFIER

INSTALLATION AND CONSIDERATIONS

Cabling: 

The PA702 can be used with either balanced or unbalanced sources, and the outputs can be used with either 
balanced or unbalanced loads, provided the proper cabling is used. A balanced line is defined as two-conductor 
shielded cable with the two center conductors carrying the same signal but of opposite polarity when referenced to 
ground. An unbalanced line is generally a single-conductor shielded cable with the center conductor carrying the 
signal and the shield at ground potential.

Balanced Input - Use 2 conductor w/shield for low level signals of 20-22 gauge is best. Maintain the proper polarity,
+ to +, – to – and shield to ground. Note: The ground center pin of the Phoenix connector is common for both 
channels.

Unbalanced inputs - For the RCA inputs pre-made RCA cables can be purchased from vendors to simplify 
interconnection to external devices. For unbalanced signals using the Phoenix connector connect the (–) pin of the 
amplifier input to the GND center pin and the (+) pin to the positive of the source.

Speaker outputs - Use 2 conductor unshielded wire of the appropriate gage. If you are unsure about this, contact 
Atlas Sound Tech Support at 1-800-876-3333. Make sure you know how many speakers you need and what load 
value you intend to use.

AC Sense Control Adjustment (Rear Panel)

The PA702 can be remotely turned on via the Unswitched AC Outlet. The PA702 mains power switch must be on to 
activate or adjust AC sense trigger control. Prior to powering on the AC mains switch follow the instructions below. 

 

1.   Dip Switch setting to “

SENSE ON

” and “

AC ON

”. 

 

2.  Then plug a video projector or audio component into the Unswitched AC socket on the rear of the PA702.  

 

3.  By using the potentiometer adjustment labeled “

AC SENSE

” rotate fully clockwise. 

 

4.  Turn on the AC Mains Power Switch of the PA702.

 

5.  Turn on the device (video projector) that is plugged into the AC socket. If the PA702 power LED does not turn  

from Red to Blue the amp is still in sleep mode. Slowly rotate the potentiometer counter clockwise until the 
LED changes from Red to Blue.  When Blue the amplifier will allow any audio that is at the audio inputs to be 
amplified.

 

6.  For proper triggering check the operation by turning video projector or component on and off.. When the 

accessory component is turned off the AC mains power LED should turn Red immediately. If it remains Blue, 
slightly rotate the adjustment clockwise until the LED turns Red. By rotating the potentiometer clockwise 
(right) the trigger point becomes less sensitive to turn on, meaning it will take more AC Current draw from the 
Unswitched AC outlet to turn on the amp. Note: Some components have a small change in current draw and 
may be more difficult to set a proper AC trigger. In this case, “

AUDIO SENSE

” turn on may be an alternative 

option for better standby triggering stability. 

Содержание PA702

Страница 1: ...AtlasSound com 1601 JACK MCKAY BOULEVARD ENNIS TEXAS 75119 U S A TELEPHONE 800 876 3333 FAX 800 765 3435 2007 ATLAS SOUND LP Printed in China ATS002604 RevA 03 07 PP OWNER S MANUAL ATLAS SOUND PA702...

Страница 2: ...a ATS002604 RevA 03 07 OWNER S MANUAL 2 ATLAS SOUND PA702 2 CHANNEL 70W POWER AMPLIFIER TABLE OF CONTENTS Important Safety Instructions 3 Introduction Features and Applications 5 Front Panel Descripti...

Страница 3: ...nly 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...

Страница 4: ...ic shock may result Never exceed the wattage on the product when connecting equipment Fire and or property damage may result Operate the product only with the voltage specified on the unit Fire and or...

Страница 5: ...he important features that professional installation personnel require to meet or exceed their customer s expectations Small and compact and engineered for reliability the Atlas Sound PA702 will provi...

Страница 6: ...ce the input level of the amp After the reducing the input level and the Limit LED remains on recheck the load connections to the amp 4 Left Right Signal LED s The Signal LED s illuminates Blue if the...

Страница 7: ...ight RCA inputs This allows you to adjust the level from OFF to 6dB Factory settings calibrated for 320mv of input sensitivity See Mixer Function page 9 for use 5 Balanced Input Connections Left and R...

Страница 8: ...d inputs When this switch is in the UP position only one input signal is needed to feed signal to both amplifier channels using the same signal Note the input sensitivity is reduced by 6dB in the MONO...

Страница 9: ...controls and are Pre the Front panel Master Left Right Level controls This allows you to feed a balanced signal from one source and apply a second source signal to the unbalanced RCA input and adjust...

Страница 10: ...at 1 800 876 3333 Make sure you know how many speakers you need and what load value you intend to use AC Sense Control Adjustment Rear Panel The PA702 can be remotely turned on via the Unswitched AC O...

Страница 11: ...he potentiometer adjustment labeled AUDIO SENSE rotate fully clockwise The AC mains Power LED should be Red still 5 Slowly apply audio signal from audio source until the AC Mains Power LED turns from...

Страница 12: ...her ap pliances including amplifiers that produce excessive heat Ambient temperatures should not exceed 113 F 45 C when equipment is in use Video Pole Mount The PA702 is ideally suited to be used in b...

Страница 13: ...m 1601 JACK MCKAY BOULEVARD ENNIS TEXAS 75119 U S A TELEPHONE 800 876 3333 FAX 800 765 3435 2007 ATLAS SOUND LP Printed in China ATS002604 RevA 03 07 OWNER S MANUAL 13 ATLAS SOUND PA702 2 CHANNEL 70W...

Страница 14: ...nel 4 TOTAL HARMONIC DISTORTION 0 2 FREQUENCY RESPONSE 3dB 30Hz 20 KHz No Hi Pass Filter 3dB 100Hz 20KHz Hi Pass engaged PROTECTION CIRCUITS AC fuse T3 15A 250v 5mm x 20mm Thermal short circuit SIGNAL...

Страница 15: ...t notice AtlasSound com 1601 JACK MCKAY BOULEVARD ENNIS TEXAS 75119 U S A TELEPHONE 800 876 3333 FAX 800 765 3435 2007 ATLAS SOUND LP Printed in China ATS002604 RevA 03 07 OWNER S MANUAL 15 ATLAS SOUN...

Страница 16: ...rviced or installed in other than a workman like manner The original sales invoice should be retained as evidence of purchase under the terms of this warranty All warranty returns must comply with our...

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