Parasound P 3 - Manual (Page 23)

TROUBLE
No power
P 3 will not turn on with
DC trigger voltage
Power but no sound
Distorted sound through
speakers.
Hum and/or buzz through
speakers
PROBABLE CAUSE
Power cord is disconnected
Voltage selector switch is in the
wrong position
AC fuse is blown
DC trigger source wired with reverse
polarity or voltage too low
Volume control turned down
Bad connection to power amplifier
External Loop jumpers are missing
P 3 is muted
Damaged speaker
Problem with the power amplifier or
source component
The P 3 Balance is adjusted all the
way to the left or right
Ground loop from cable TV
Ground loop between the P 3 and
power amplifier
Ground loop within equipment rack
Other ground loop
REMEDY
Connect power cord
Make sure the Voltage selector switch is in the
correct position for your region
Replace fuse with one of the same value
Check polarity of the DC trigger source with
a voltmeter
Increase the volume control setting
Check the output connections
Replace External Loop jumpers
Press Mute button or adjust the Volume knob
or remote buttons to unmute the P 3
Exchange the left and right speaker cables.
If the same speaker is distorted, the speaker is
damaged. If not, the problem may be with your
power amplifier or further up the signal path
Exchange the left and right P 3 output cables.
If distortion stays in the same channel, the
problem is after the preamplifier
Re-adjust with the Balance buttons
Move the ground switch on the power amplifier
to its lift position. Install a cable isolation device
such as the Xantech 634 Ground Breaker.
www.xantech.com
Move the ground switch on the power amplifier
to its lift position.
Install nylon shoulder washers on both sides of
the rack-mounted panels of all equipment to
prevent the P 3 from making any metal-to-metal
contact with the rack
Contact Parasound Technical Service
TROUBLESHOOTING GUIDE
20
Your Parasound P 3 Preamplifier requires no periodic maintenance and has no user-serviceable
parts inside. To avoid the risk of electric shock, do not remove the top cover. The P 3’s
exterior can easily be cleaned with a soft cloth pre-moistened only with a few drops of
water or glass cleaner.
Main Power Fuse
If this fuse blows, please contact Parasound Technical Service for further advice.