Grundeinstellungen des PA 3000 HV - T+A Elektroakustik
Grundeinstellungen des PA 3000 HV - T+A Elektroakustik
Grundeinstellungen des PA 3000 HV - T+A Elektroakustik
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Protection circuit<br />
The Protection circuit guards against damage caused by short-circuit, overheating<br />
and overloading. If a problem occurs, the protection circuit switches the<br />
output signal off, the loudspeaker output buttons ( and ) start to flash, and<br />
the screen displays a message: either ‘Protection’ or ‘Overheat’, according to<br />
the type of problem.<br />
The message ‘Overheat’ indicates that the amplifier has become too hot. If this<br />
should occur, the machine should be left switched off for a generous period in<br />
order to cool down. Ensure that there is an adequate flow of cooling air to and<br />
from the machine. It will not be possible to switch the machine on again until it<br />
has cooled down to the appropriate temperature.<br />
If the screen displays the message ‘Protection’, this means that either a shortcircuit<br />
or an overload situation has occurred. In this case please reduce the<br />
volume setting on the amplifier. If the machine has been overloaded, it should<br />
switch itself on again after a brief interval, and the buttons will then stop<br />
flashing. If the amplifier does not switch itself on again after a while, there may<br />
be a short-circuit in the loudspeaker leads. Switch the machine off and check<br />
the wiring of the devices and the loudspeakers.<br />
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