Parasound A 51 manual Manual and Automatic Turn ON-OFF Options, Turn Off Delay in the Audio Mode

Page 8

6MANUAL AND AUTOMATIC TURN ON-OFF OPTIONS

You can manually turn the A 51 on and off with its front panel On-Off button. It can also be triggered to turn on and off automatically when your preamplifier, surround controller, or system controller is turned on and off.

Manual On-Off from the Front Panel

If you want to manually turn on and off the A 51 at any time, you need to first select the Manual On- Off option by placing the Auto Turn On switch (on the rear panel) to its middle Man (Manual) position.

A51 Amplifier

Parasound Products, Inc. San Francisco, CA USA

L U C A S F I L M

Manufactured under license from Lucasfilm Ltd. Lucasfilm and THX are registered Trademarks of Lucasfilm Ltd.

WARNING

To Prevent Fire Or Shock

Hazard, Do Not Expose This

Unit To Rain Or Moisture.

CAUTION

To Prevent Electric Shock,

Do Not Remove Cover. No

User-Serviceable Parts Inside,

Refer Servicing To Qualified

Service Personnel.

 

Input Select

 

 

 

Balanced

Unbalanced

 

 

 

 

Ch 1

 

 

 

 

Ch 2

 

 

 

 

Ch 3

 

 

 

 

Ch 4

 

 

 

 

 

 

Fuse

 

 

 

Ch 5

T15A/250V1-115V Area

 

 

 

T8A/250V-230V Area

 

 

 

 

 

AC 115V

60Hz

 

 

 

 

AC 230V

50Hz

 

Audio

 

Lift

 

 

Man

 

 

 

 

 

12 V

50 mV 250

Normal

Power Consumption: 1800W

Input

 

Sensitivity

Ground

 

Auto Turn On

 

 

Auto Turn On Switch, set to middle position

Connecting an Active Audio Source for Automatic On-Off

If you want to automatically turn on the A 51 whenever music is playing (an audio signal is present), choose the audio triggering option by moving the Auto Turn On switch to its upper Audio position.

What You’ll Need:

An audio source that’s playing

Before Connecting

Remove power to all the components in your audio system.

Make sure the Auto Turn On switch on the A 51 is in its Audio (up) position.

Set the Audio triggering Sensitivity adjustment knob on the rear panel to the desired level. Start with the 12 o’clock position.

To Connect

Connect an active audio source to either the Ch 1 Balanced or Unbalanced Input jacks. (Refer to to pages 2 and 3).

A51 Amplifier

Parasound Products, Inc. San Francisco, CA USA

L U C A S F I L M

Manufactured under license from Lucasfilm Ltd. Lucasfilm and THX are registered Trademarks of Lucasfilm Ltd.

WARNING

To Prevent Fire Or Shock

Hazard, Do Not Expose This

Unit To Rain Or Moisture.

CAUTION

To Prevent Electric Shock,

Do Not Remove Cover. No

User-Serviceable Parts Inside,

Refer Servicing To Qualified

Service Personnel.

 

Input Select

 

 

 

Balanced

Unbalanced

 

 

 

 

Ch 1

 

 

 

 

Ch 2

 

 

 

 

Ch 3

 

 

 

 

Ch 4

 

 

 

 

 

 

Fuse

 

 

 

Ch 5

T15A/250V1-115V Area

 

 

 

T8A/250V-230V Area

 

 

 

 

 

AC 115V

60Hz

 

 

 

 

AC 230V

50Hz

 

Audio

 

Lift

 

 

Man

 

 

 

 

 

12 V

50 mV 250

Normal

Power Consumption: 1800W

Input

 

Sensitivity

Ground

 

Auto Turn On

 

 

Auto Turn On Switch, set to up position

YOU SHOULD KNOW

Turn Off Delay in the Audio Mode

When the music stops, the A 51 will remain on for about five minutes. This delay prevents unwanted turn-off during silent passages in music or during the pauses between tracks.

Image 8
Contents Amplifier Thank YOU Congratulations and Thank You for Choosing ParasoundParasound Staff Unpacking Your a Keeping Records for Future ReferenceTable of Contents To attach the rack mount brackets Placement Guidelines for Your aRack Mounting Your Parasound a Before Connecting What You’ll Need Balanced XLR Jacks and Their Pin ConfigurationLeft and Right Balanced Input Jacks To ConnectWrite Down Your Connections Before ConnectingCh 1-5 Unbalanced Inputs Connecting Your Speakers to the a Speaker Wire Length and Gauge thicknessSpeaker Terminals Correct Speaker Polarity is ImportantManual and Automatic Turn ON-OFF Options Connecting an Active Audio Source for Automatic On-OffTurn Off Delay in the Audio Mode Connecting AN External DC Source for Automatic Turn ON-OFF FuseUnderstanding the Indicators on the a 120 V or 220 V 240 V Operation Connecting the a 51 AC Power CordAC Power Connections Maintaining Your a Troubleshooting Guide Trouble Probable Cause RemedyProcedure for Returning Your a 51 to Parasound for Service Servicing Your aIf All Else Fails -Call Us for Help Important Notice Shipping the aAudio Trigger Sensitivity Adjustment Technically SpeakingTechnically Speaking Parasound a 51 Design Overview Circuit Designed by John CurlParasound a 51 Design Overview Parasound a 51 Specifications Parasound Products, Inc Battery Street, San Francisco, CA