Crown CTs 1200 Operation Manual page 22

6 Troubleshooting
page 22
CONDITION: No sound, even though
the amp has power. Power LED is on
with out fl ashing and the amp is receiving an input
sig nal. Signal indicator is fl ashing.
POSSIBLE REASON:
• Speakers not connected.
• Open circuit due to speaker failure.
• There is a short on the amplifi er output. First
disconnect your speakers from the affected
channel(s) one by one to determine if one of
the loads is shorted.
• Ready LED is off. Channel has been set to
standby mode via the control system.
CONDITION: No input signal. Signal
indicator is not fl ashing even though audio is
applied, and the channel is ready..
POSSIBLE REASON:
• Input signal level is very low.
• Level controls are turned down.
CTs Power Amplifi ers
CONDITION: Data indicator not
fl ash ing, even though PIP module is
installed and host computer control
software is active.
POSSIBLE REASON:
• Cable between computer and PIP module is
broken or not connected.
Note: Data indicator fl ashes only when the installed
PIP2 module is polled for data, or is polled to see
whether it is online.
CONDITION: Bridge LED is lit.
POSSIBLE REASON:
• Amplifi er is in bridge-mono mode.
"Off/Flashing/On" above means that
the LED can be off, or fl ashing, or on.
Operation Manual