Crown Audio XLS Series (3 rack space height) - Manual (Page 12)

XLS Series Power Amplifi ers
Operation Manual page 12
CONDITION: Normal operation.
POSSIBLE REASON:
• This is normal operation for your amp.
CONDITION: No power to the
amplifi er.
POSSIBLE REASON:
• The amplifi er’s “power” switch is off.
• The amplifi er is not plugged into the
power receptacle.
• The amplifi er’s high-voltage power
supply fuse has blown. Refer to the
Advanced Features and Options section
of this manual for instruction on fuse
replacement.
CONDITION: Distorted sound.
POSSIBLE REASON:
• Input signal level is too high. Enable
“anti-clip” Limiter switch. If Clip indi-
cators continue to illuminate frequently,
turn down your amplifi er level controls.
NOTE: Your amplifi er should never be
operated at a level which causes the Clip
LEDs to illuminate constantly.
6 Troubleshooting
KEY
CONDITION: No sound.
POSSIBLE REASON:
• The amplifi er has just been turned on and
is still in the 4-second turn-on delay.
• The amplifi er is in “fault” mode. A Fault
status can be triggered when one of the
amplifi er’s protection circuits is activated.
First disconnect your speakers from the
affected channel(s) one by one to deter-
mine if one of the loads is shorted. If the
indicators return to normal status, then
try a different speaker or cable to deter-
mine where the short is occurring. If no
short can be found, turn off the amp and
allow the amp to cool. If indicators do not
return to normal after restarting your amp,
check the fuse and replace if necessary,
or return amp to Crown or an authorized
Crown Service Center for servicing.
• No input signal.
• Input signal level is very low.
• Level controls are turned down.
• Speakers not connected.