PS Audio GCC-250 - Manual (Page 13)

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Troubleshooting 9
®
Troubleshooting
©2004 PS Audio International Inc. All rights reserved.
Owner’s Reference GCC Power Amplifi er Series
If no sound comes out of the GCC Control Amplifi er there are several areas to check:
• You are not getting an audio signal into the Control Amplifi er
• You are not properly connected to the loudspeakers
• There is no power from the AC socket
• You have the DC trigger jack connected without an appropriate voltage to turn it on
It is obviously important that the GCC Control Amplifi er receive a high level signal from the source (CD,
DVD, tuner, etc.) or whatever you are feeding it. One way to determine if this is the case, would be
to fi rst go to your loudspeaker. Place your ear very near the tweeter and listen for a very slight hiss.
If you hear one, chances are good the amp is working fi ne, connected properly at the speakers and
you have an input problem. If you
suspect an input problem, there are
several possibilities:
• You have not selected to
correct input. Check and
make sure the input you
selected is the correct
input.
• The volume control is too
low or the mute is on.
• The source is not playing.
Check another source.
• The connecting cables are
defective. Use another
set.
If you suspect an output problem,
use the same technique of placing
your ear very close to the speaker’s tweeter while the GCC Control Amplifi er is turned on. You should
hear a very slight amount of hiss from the tweeter. If you do not, check the speaker cable/amp
connection. Make sure the amp’s front panel light is on, indicating proper performance.
If there is no sound and you are convinced the GCC Control Amplifi er has power and its front panel
light is lit, contact your dealer, distributor or PS Audio for further assistance.
If there is an excessive amount of hiss or noise from the loudspeaker, it is probably not from the GCC
Control Amplifi er as this amp has extremely low self noise. Turn the amp off, remove the interconnect
cables from the GCC Control Amplifi er and then turn the amplifi er back on. Listen once again to see
if the noise has been diminished. If it has, chances are good you either need to replace your source a
quieter one or you may need to experiment with better shielded interconnect cables.
No sound comes
out of the amp
Check the input
If you suspect an
output problem
If there is a lot
of hiss in your
speaker
Try another
source