Crown Audio CTs 8200 Manual De Usuario
Operation Manual
CTs Multi-Channel Power Amplifiers
page 18
CONDITION: No sound, even though
the amp has power.
the amp has power.
Power LED is on
without flashing and the amp is receiving an
input signal. Signal indicator is flashing.
input signal. Signal indicator is flashing.
•
Speakers not connected.
•
Open circuit due to speaker failure.
CONDITION: No input signal.
(Signal indicator is not flashing even though
audio is applied and channel is ready).
audio is applied and channel is ready).
POSSIBLE REASON:
•
Input signal level is very low.
•
Input cables have become disconnected.
•
There is a short on the amplifier
output. First disconnect your speakers
from the affected channel(s) one by one
to determine if one of the loads is
shorted.
from the affected channel(s) one by one
to determine if one of the loads is
shorted.
6 Troubleshooting
CONDITION: Thermal indicator is
flashing.
flashing.
POSSIBLE REASON:
•
The amplifier has become too hot for
safe operation. Check for loads less than
2 ohms, and for excessive input levels.
Check for proper ventilation and proper
mode-switch setting. Driving low-
impedance loads while in high-voltage
mode can cause overheating.
2 ohms, and for excessive input levels.
Check for proper ventilation and proper
mode-switch setting. Driving low-
impedance loads while in high-voltage
mode can cause overheating.
CONDITION: All channel thermal
indicators are flashing.
indicators are flashing.
POSSIBLE REASON:
•
Power supply thermal overload.
•
DC or excessive low-frequency signal at
the amplifier’s output has enabled
speaker protection.
speaker protection.
CONDITION: Bridge LED is flashing
.
POSSIBLE REASON
:
•
The mode switch was switched while the
power was on.