Troubleshooting
Troubleshooting
No front panel indicator is shown
❍Check that your AC power supply is connected correctly.
❍Check that the ON OFF switch on the back panel is in the ON position.
❍Check that the fuse on the stereo power amplifier back panel and the fuse in the unit’s power plug have not blown; see To change the mains fuse, page 19.
The sound has cut out
The 559 Stereo Power Amplifier includes a thermal shutdown, which mutes the output if the amplifier becomes too hot. The Standby LED will also become red.
❍Leave the amplifier for a few minutes to cool down, the Standby LED will turn green.
The amplifier can then be taken out of standby using the front panel button or the TRIGGER INPUT.
The 559 Stereo Power Amplifier also includes a power circuit breaker to protect the loudspeakers. This is also triggered if the mains supply is interrupted.
❍Check the system for the cause of the cut out.
❍Switch off, wait 5 seconds, then switch on to reset the power.
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