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If All Else Fails –Call Us for Help

Call your Parasound dealer or Parasound’s Technical Service Department toll free at 

1-866-770-TECH (8324)

. We can often solve the problem with simple diagnostic tests you can 

perform yourself. If we determine that your A 52 will need further inspection or servicing, we will:

a) Refer you to an authorized Parasound repair center near you, or 

b) Authorize return of the unit to us and advise you of the correct procedure.

Procedure for Returning Your A 52 to Parasound for Service

If Parasound determines that you should send your A 52 to Parasound, you will be given a Return
Authorization (RA) number. This RA number must be clearly marked on the 

outer carton only

IMPORTANT

: Enclose a copy of your original purchase receipt. 

A unit is eligible for warranty

repair ONLY when the purchase receipt shows that the unit was purchased from an
Authorized Parasound Dealer.

A unit obtained through unauthorized channels is not eligible 

for warranty repair. Parasound is not responsible for any sellers’ misrepresentations about our
warranties or other service policies. 

We do not accept any of the following:

Units with collect shipping charges

Units without a valid RA number 

Units without a suitable shipping carton

Units for which we see or hear evidence of improper packing

For a non-warranty repair, contact us for an estimate of the repair charges before you ship 
the unit to us. The same packing and Return Authorization number procedures apply.

Important Notice - Shipping the A 52

Before shipping the unit to Parasound, you MUST re-pack the unit into its fitted molded foam
insert sandwich and its original carton. If you do not have the original packing cartons and foam
inserts, call us for new packing materials that we can provide to you for a nominal charge. 

Use 

of any other carton and packing materials will probably result in shipping damage, and
refusal of the unit.

Common carriers such as UPS seldom pay claims for damage incurred 

during shipment when a product is surrounded only with Styrofoam “peanuts” or otherwise
improperly packed.

We cannot stress enough the importance of properly packing your A 52. Shipping damage
resulting from inadequate packing can cost you a lot of money and significantly increase the
time required for repair. 

Ship the unit with adequate insurance. After repair under warranty, the unit will be returned 
to you via prepaid UPS within the continental United States.

SERVICING YOUR A 52

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Содержание Halo A 52

Страница 1: ...A 52 Amplifier Owner s Guide...

Страница 2: ...le shipping damage If you see any contact your Parasound dealer right away Be sure to save and store both the inner and outer cartons and the packing inserts for possible future transport To save room...

Страница 3: ...ING YOUR SPEAKERS TO THE A 52 5 MANUAL AND AUTOMATIC TURN ON OFF OPTIONS 6 CONNECTING AN EXTERNAL DC SOURCE FOR AUTOMATIC ON OFF 7 CONNECTING THE A 52 TO TRIGGER ANOTHER COMPONENT 8 UNDERSTANDING THE...

Страница 4: ...h its HRA 3 rack mount brackets not included With its four feet removed the A 52 chassis and front panel height occu pies three rack spaces 51 4 or 133 mm When mounting equipment below the A 52 you wi...

Страница 5: ...Ch 1 on your A 52 3 0 Repeat steps 1 and 2 above to connect Ch 2 Ch 3 Ch 4 and Ch 5 3 YOU SHOULD KNOW Balanced XLR Jacks and Their Pin Configuration The balanced inputs of the A 52 use XLR jacks that...

Страница 6: ...0 Repeat steps 1 and 2 for Ch 2 Ch 3 Ch 4 and Ch 5 YOU SHOULD KNOW Write Down Your Connections Make a note of which channel on your surround controller now connects to each channel of the A 52 so you...

Страница 7: ...Important Polarity refers to and connections Speaker wires are coded with printing or a ridge on the insulation on one of the leads so you know which lead was connected to the and terminals at the ot...

Страница 8: ...ses between tracks Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Input Balanced Unbalanced Input Balanced Unbalanced Input Balanced Unbalanced Input Balanced Unbalanced Input Balanced Unbalanced Man Balanced Inputs Unbala...

Страница 9: ...can cut one plug off the cable and terminate the end as required The lead with the red stripe is positive and the lead without the stripe is negative Output CONTROL COMPONENT 2 1 Ch 1 Ch 2 Ch 3 Ch 4...

Страница 10: ...igger output connector you can cut one plug off the cable and terminate the end as required The lead with the stripe is positive and the lead without the stripe is negative CONTROLLED COMPONENT Input...

Страница 11: ...resume operation If the A 52 remains in protection after it has cooled down and you ve confirmed there are no external faults it could indicate an internal problem Please contact Parasound s Technica...

Страница 12: ...AC Cord provided An AC outlet or high quality AC power strip within reach of the AC cord Before Connecting Remove power to all the components in your audio system To Connect 1 Plug the female end of t...

Страница 13: ...void the risk of electric shock do not remove its top cover The amplifier s exterior can easily be cleaned with a soft cloth pre moistened only with a fewdrops of water or glass cleaner Main Power Fus...

Страница 14: ...ue fuse Check polarity of DC source with a voltmeter Try connecting a 9V battery to the 12V DC input Make sure Auto Turn On selector switch is in its 12V position Make sure Auto Turn On selector switc...

Страница 15: ...ng Units with collect shipping charges Units without a valid RA number Units without a suitable shipping carton Units for which we see or hear evidence of improper packing For a non warranty repair co...

Страница 16: ...e equal but 180 degrees out of phase with each other with respect to ground To send and receive balanced signals requires special differential circuitry A differential input circuit amplifies only the...

Страница 17: ...c com 3 Use the Ground switch on the A 52 to eliminate most ground loops This separates the A 52 s sig nal input ground from its chassis ground to isolate unwanted voltage in the ground shield of the...

Страница 18: ...ere instruments dialogue and effect are positioned Each channel s 60 Vdc B and B supply rails use high speed rectifier diodes and two large 10 000uF electrolytic filter capacitors chosen for their low...

Страница 19: ...s A while its output stage operates with higher pure Class A power than many amplifiers selling for twice or three times its price The result is less fatiguing more natural sound Total Protection DC S...

Страница 20: ...ance Unbalanced 47k W Balanced 94k W Input Sensitivity for 28 28 V Output into 8 W Unbalanced 1 V Balanced 1 V per leg S N Ratio 113 dB input shorted IHF A weighted 104 dB input shorted unweighted Dam...

Страница 21: ...Parasound Products Inc 950 Battery Street San Francisco CA 94111 415 397 7100 Fax 415 397 0144 www parasound com...

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