T+A PA 2500 R, Руководство пользователя

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51
Protection circuit
The Protection circuit guards against damage caused by short-circuit, over-
heating and overloading. If a problem occurs, the protection circuit switches the
output signal off, the loudspeaker output and pre out button (
 
)
start to flash, and the screen displays one of the following messages:
Display Possible cause
Overheat The message
‘Overheat’
indicates that the
amplifier has become too hot. If this should occur,
the machine should be left switched off for a
generous period in order to cool down. Ensure that
there is an adequate flow of cooling air to and from
the machine. It will not be possible to switch the
machine on again until it has cooled down to the
appropriate temperature.
Clipping This display appears if the volume is set too high,
causing distortion at the loudspeaker output. The
PA 2500 R detects this automatically, and reduces
the volume accordingly.
Short R
The right-hand loudspeaker output is short-
circuited. If this should happen, please check the
loudspeaker cables.
Short L
The left-hand loudspeaker output is short-
circuited. If this should happen, please check the
loudspeaker cables.

If you find it impossible to solve a problem with the help of these notes please
disconnect the unit from the mains and ask your authorised

specialist
dealer for advice.
Clipping Before the PA 2500 R automatically reduces the volume, the clipping is
indicated by the flashing speaker button

.
The clipping protection can be disabled in the configuration menu (see chapter
entitled
‘Basic settings of the PA 2500 R’
).