Troubleshooting - Matrix Elements GT800fX User Manual

TROUBLESHOOTING:

NOTE:
•
Ensure the amplifier has no less than 4 Ohms worth of loading across
each channel for Stereo/Parallel modes.
•
Ensure Bridge Mode (if used) is utilised via Output X and is loaded
with no less than 8 Ohms.
•
Ensure wiring is safe and correct.
•
When heavily driven, the amplifier itself may make a noticeable
hissing sound in relation to the supplied signal. This is a normal
phenomenon relating to the behaviour of certain components which
vibrate slightly under the high powers involved.
•
The fans on the GT series may increase their speed when the
amplifier is under load to improve cooling efficiency.
.
(1) THE POWER LIGHT DOES NOT ILLUMINATE
•
Check that the mains supply is turned on.
•
Check that the mains switch is turned on.
•
Check mains lead for damage & check fuse. Replace lead if damaged,
replace fuse if blown.
•
Check internal fuse. Replace if blown.
(same type of fuse specified/installed must be used, do not change)
•
If fuse re-blows refer to service personnel.
•
Check voltage selector of amp is in correct position for required
voltage.
•
If fuse has not blown and the voltage selector is in correct position but
the amplifier still malfunctions, refer to service personnel.
(2) OUTPUT VOLUME IS LOW
•
Check the signal from the input source and check signal cables. The
amplifiers are designed to operate at an input voltage of 0.775V. If
the intended signal source is below this a lower output volume will
result. Raise the signal level from the source.
(3) NO OUTPUT VOLUME
•
Check the amp is receiving a signal from it's source.
•
Check both input and output leads and replace and re-test. In the
case of outputs, if speakons are used make sure they are securely
attached or try a 1/4" cable.
•
Check signal output lights are lighting up. These lights are directly
connected to the amplifiers output circuits so if they are lighting up,
the amplifier is outputting a signal and the problem lies elsewhere.
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