System Fidelity SA-370 - Manual (Page 14)

TROUBLESHOOTING
PROBLEM
No power when the amplifier is turned on.
No sound.
There is sound in one channel only.
High buzzing.
Weak bass and poor stereo perspective
Distortion of sound.
The unit does not switch between inputs
CAUSE/REMEDY
-Switch on the electric current at the socket.
-Check that the plug has been correctly inserted into the
socket.
-The internal fuse has blown and must be replaced
-The power cord has been damaged and must be re-
placed
-The amplifier has not been turned on from stand-by
mode.
-The volume control is set at a minimum
-The speaker cables have not been correctly connected.
-A wrong input source has been selected.
-No input source has been connected.
-The audio input cables have been incorrectly connected
or damaged.
-The input source is defective.
-The speaker cables have been incorrectly connected or
damaged.
-The speakers are defective.
-The audio input cables have been incorrectly connected
or damaged.
-The speaker connection is out of phase. Check that the
positive and negative poles have been correctly
connected, both at the back of the amplifier and at the
back of the speaker.
-Some of the conductor wires of the speaker cable are in
contact with each other which causes distortion.
-The volume is set too high.
-The amplifier is defective and should be serviced by a
qualified technician.
-The amplifier is defective and should be serviced by a
qualified authorized service.
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