Stewart Audio CVA50-1 Priority PA Скачать руководство пользователя страница 11

20 

4  Troubleshooting 

 

Problem: Power indicator does not turn on. 

 
Procedure: 

Check that the amplifier is plugged into a live outlet. After 

you have ensured that it is not a power issue, disconnect any speakers. 
If the amplifier turns on after a few seconds delay, then the problem is 
in the output connection. Check wiring and speakers for short circuits.   
 
 

Problem: No output on one or both channels; Power indicator is 
lit. 

 
Procedure: 

Check that level controls are  not turned down. Check that 

input and output connections are secure. Refer to 

section 2.5 

to en-

sure that you have properly connected your speakers. Ensure signal 
present LED is flashing to denote a signal. If there is no signal detected 
check signal source and that level controls are set high enough. 
 
 

Problem: Microphone level is too low even after adjusting level 
knob

 

 

Procedure: 

Refer to 

section 3.2.2 

to adjust the gain switch on the rear 

of the amplifier. 
 
 

Problem: Channels 2-4 cut out while speaking into the microphone 

 

Procedure: 

This is part of an intended feature calling ducking. Refer to 

section 3.2.4

 to adjust this to a more acceptable level. 

 
 

Problem

Amplifier overheats and/or shuts off.

 

 

Procedure: 

Review 

section 2.3

 on proper cooling procedures. Check 

the signal lights on the front of the amplifier to see if the signal is over-
driving (the Clip light flashes red frequently). Overdriving the amplifier 
for extended periods of time can cause a thermal shutdown.

 

21 

4  Troubleshooting (Cont.) 

 

Problem: Output sound is distorted or cracking. 

 
Procedure: 

Check all cables for damage or loose connections and re-

duce the gain on the input signal at the mixer or preamp level. Replace 
the cables and loudspeakers temporarily to see if this resolves the 
problem. If problem still exists, contact your Authorized Dealer for ser-
vice. 

Содержание CVA50-1 Priority PA

Страница 1: ...Owner s Manual CVA50 1 PRIORITY PA www stewartaudio com April 2013 ...

Страница 2: ...ed sofa or similar surface that impedes airflow across the chassis Airflow around the unit should be unobstructed 4 This amplifier should not be used near water for example near a bathtub in a wet basement near a swimming pool etc This amplifier is intended to be operated in a controlled indoor environment 5 Do not place the amplifier near heat sources such as radiators heat regis ters stoves or o...

Страница 3: ...uilt to provide you with years of high quality audio performance and trouble free operation If after reading this manual you should have any ques tions concerning amplifier installation and operation please contact your Authorized Stewart Dealer or you may contact us directly using the contact information provided on the back of this manual 1 1 Features Your Stewart Audio CVA50 1 Priority PA ampli...

Страница 4: ...f the unit which can be used with the AV Pole bracket available from Stewart Audio Two screws are included in the kit which will affix the bracket to the top or side of the unit Part Number AV Pole 7 2 2 1 Universal Mount Installation The CVA50 1 Priority PA also has a universal bracket available which allows the unit to be mounted against a wall or under a table Two screws are included in the kit...

Страница 5: ...Priority PA amplifier is provided with a 3 pin Euro Block connector for its input connection This connector will accept both bal anced or unbalanced connections however some modifications must be made for an unbalanced connection See the next two sections for instructions on connecting your amplifier to its input source 2 4 1 Balanced Input Connections When using a balanced input source and connec...

Страница 6: ...ble must be used to sum them to mono It is highly recommended that you purchase the pre wired connectors mentioned on the next page Damage to source equipment can result from 11 Pre wired unbalanced connectors are available for purchase from Stew art Audio These will allow for a quicker installation with less room for error when connecting the CVA50 1 Priority PA amplifier to an unbal anced source...

Страница 7: ...stant voltage amplifiers work as opposed to a typical 8 ohm setup the wiring procedure and the gauge of wire used is very different Constant voltage systems and speakers use a smaller current flow than the typical 8ohm systems and thus can use a higher gauge thinner diameter wire Please refer to the following chart to choose the appro priate wire gauge for your installation Speaker leads connect b...

Страница 8: ...sult in damage to equipment or potentially harm to the operator Consult section 2 for setup instructions 2 Tampering with the circuitry or making unauthorized changes is not only dangerous but may also violate local regulations 3 Use care when making connections between the amplifier and the input or output equipment Using equipment that is not capable of handling the output wattage may lead to pe...

Страница 9: ...he LEVEL control must be adjusted until the CLIP LED goes out for undistorted sound amplification 3 2 2 Controls The CVA50 1 Priority PA controls are located on the rear of the unit There is no power switch so the amplifier will power up into a sleep state when power is first applied The CVA50 1 Priority PA Signal Sense Technology SST will power up the amplifier from sleep when a signal is detecte...

Страница 10: ...nti ometer should be placed between the 10V pin and the GND Ground pin on the rear of the unit with its wiper on the RVC pin The volume will be determined by the selected resistance on the potentiometer the greater the resistance the louder the volume The amplifier can be remotely muted by making a connection between the GND pin and the MUTE pin No power should be applied to these pins simply a co...

Страница 11: ...ow even after adjusting level knob Procedure Refer to section 3 2 2 to adjust the gain switch on the rear of the amplifier Problem Channels 2 4 cut out while speaking into the microphone Procedure This is part of an intended feature calling ducking Refer to section 3 2 4 to adjust this to a more acceptable level Problem Amplifier overheats and or shuts off Procedure Review section 2 3 on proper co...

Страница 12: ...n purchased through an authorized Stewart Audio dealer and submitted by the original purchas er This warranty is only valid in the country in which the amplifier was purchased 6 1 1 Eligibility Requirements Stewart Audio warrants against all malfunctions which come as a result of component or manufacturer defect The amplifier is also covered from all failures which arise during the warranty period...

Страница 13: ...si bility for damaged goods and or accessories that are sent with your unit 25 6 2 3 Packaging Instructions cont 1 Please write the RA number on three sides of the box Include the Stewart Audio RA number inside the box and a brief description of the problem 2 Do not ship any accessories manuals cords hardware etc with your unit These items are not needed to service your product Stewart Audio will ...

Страница 14: ...ale RCA to male Euroblock ADPT SUMRCA Stereo Female RCA to male Euroblock ADPT SUM35 Stereo Female 3 5mm to male Euroblock WP RVC B Wallplate with 10k potentiometer and knob for re mote volume control Black WP RVC A Wallplate with 10k potentiometer and knob for re mote volume control Aluminum Wall Plates 27 8 Notes ForYour Record In the spaces provided below record the model and serial number loca...

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