Troubleshooting
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15-070-01-1
PH: 720.406.8946 [email protected] www.psaudio.com
Rev A2
Troubleshooting
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®
Owner’s Reference
BHK Signature Amplifiers
above, you determine it is a component like a cable TV box that is causing the hum/buzz to occur, and
using a cheater plug doesn’t help matters, it may be necessary to isolate the cable connection (CATV)
with an isolation transformer. This inexpensive device is available at most Wal Mart, Radio Shack or
department store type outlets and is sometimes called a ‘matching transformer’. If you have problems
finding one, call your local cable TV company for advice. The matching transformer will be placed
between the cable TV cord and the cable box, TV or processor.
Just remember, take the system down to its simplest level of connection. Find a way to hook the
system up with as many pieces of the system not connected as possible. Keep it simple and get it
to the point where the hum’s gone. Then start adding back components one at a time until the hum
returns.
Finding the problem is 9/10th of the work in finding a solution.
It may be that you have the polarity of the amplifier loudspeaker connection wrong on one channel.
When out of phase, polarity, will cause bass cancellation and should be avoided. Check to make sure
the red terminal on the BHK goes to the red terminal on your loudspeaker.
The system
has no bass
It may be
something
unrelated causing
the hum
10
