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In Case of Trouble
If you suspect a problem with your amplifier, first turn the amp off and check all your connections. The
trouble may be caused by another component or even a defective hookup cable. If you are hearing hum
out of your speakers, turn off the amplifier and disconnect the inputs to it. If the hum goes away, when
you turn the amplifier back on it was probably be caused by your preamplifier or one of the source
components connected to it. Also, make sure that both AC cords are connected to the same AC outlet.
In rack mounted systems, ground loops and hum can sometimes develop via the metal rack rails of the
equipment rack. This problem can be solved with nylon shoulder washers (refer to rack mounting section
of this manual).
If All Else Fails...
Call your Parasound dealer or Parasound Technical Service Department. We can suggest other diagnostic
tests you can easily perform. If we determine that your amplifier should be returned to Parasound or an
Authorized Parasound Warranty Center for inspection and possible servicing, call Parasound for the
location of a warranty center near you. If you choose to send it to Parasound, contact us to obtain a Return
Authorization (RA) number. You will be asked to repack the unit in its original packaging including the
additional outer box for protection during transit. The RA number must be clearly marked on the outer
carton only. You should ship the unit by UPS with adequate insurance and a copy of your purchase receipt
to validate your ownership.
Units that arrive without your specific RA number, without a suitable shipping carton or with evidence
of improper internal packing may be refused. We do not accept collect shipments. After repair under
warranty, the unit will be returned to you via prepaid UPS within the Contentinental United States. In the
case of a non-warranty repair, contact us and we will advise you of the repair charges before you ship the
unit to us. The same packing and Return Authorization number requirements apply.