10
Front Panel
1 Standby button & LED status indicator
e front panel Standby button will toggle the amplier between operate,
its fully operational state, and a standby mode that leaves the amplier o,
yet ready to respond to system commands via any of the supported control
options(e.g.IRinput,DCtrigger,CAN-Bus,orRS-232).
e current state of the amplier is indicated by the LED status indicator
in the Standby button. e state of this LED indicates the following:
• on(red) = standby
• ashing(blue) = initialization
• on(blue) = operate
• slow ashing (red) = protection circuit(s) engaged
When in standby,theamplier’sgainstagesarepowereddown.Onlya
small power supply and control circuit remain on, consuming relatively
little power. Fortunately, since the output stages by their nature conduct a
great deal of current, they warm up and sound their best very quickly.
If you are not going to use the amplier for an extended period of time, we
suggest you disconnect it from the AC mains.
Also, it is a good practice to physically disconnect any and all valuable
electronics from the AC mains during electrical storms, as a lightning
strike anywhere near your home can put a tremendous surge on the AC
mains that can easily damage any piece of electronics, no matter how well
designed and protected. e best protection in the case of severe electrical
storms is to simply remove the electronics from any connection with the
power grid.
Caution! If you see the Standby LED indicator blinking red, please
check that all external connections are cleanly made
and secure. If no fault is immediately obvious, try to
reset the amplifier by pressing and holding the standby
button. If the unit does not reset or continues to enter
protection mode, please call your authorized Classé
dealer for assistance.
SIGMA AMP5