6 troubleshooting – Crown Audio CTs 1200 User Manual

Page 22

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Operation Manual

CTs Power Amplifi ers

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.

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.

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.

6 Troubleshooting

“Off/Flashing/On” above means that
the LED can be off, or fl ashing, or on.

Ready LED is off. Channel has been set to
standby mode via the control system.

CONDITION: Bridge LED is lit.

POSSIBLE REASON:

Amplifi er is in bridge-mono mode.

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