Troubleshooting - Crown Macro-Tech MA-3600VZ Operation Manual

Crown audio operation manual power amplifier ma-3600vz macro-tech series
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7 Troubleshooting

Key
page 20
CONDITION: Normal operation.
POSSIBLE REASON:
• This is normal operation for your amp.
• The amp is set for Parallel Mono mode.
CONDITION: Distorted sound.
POSSIBLE REASON:
Input signal level is too high. Turn down
your amplifier level controls. NOTE: Your
amplifier should never be operated at a
level which causes the Signal/IOC LEDs
to constantly indicate an IOC condition.
ODEP limiting has been activated. Take
appropriate measures to keep the ampli-
fier out of ODEP limiting (see Section
5.1.1 for more information about ODEP).
Macro-Tech MA-3600VZ Power Amplifier
CONDITION: No power to the amplifier.
POSSIBLE REASON:
The amplifier's Power switch is off.
The amplifier is not plugged into the power
receptacle.
The amplifier's low-voltage power supply
fuse has blown. Return amp to Crown or an
authorized Crown Service Center for
servicing.
CONDITION: No sound.
POSSIBLE REASON:
The amplifier has just been turned on and
is still in the 4-second turn-on delay.
The amplifier is being held in Standby
Mode by an installed IQ PIP module.
ODEP limiting has been activated. Take
appropriate measures to keep the ampifier
out of ODEP limiting (see Section 5.1.1
for more information about ODEP).
The amplifier is in drive protection mode.
This can occur with improper source sig-
nals like infrasonic square waves or input
overloads that excessively clip the input
signal.
The amplifier's circuit breakers have
tripped. Reset circuit breakers. If the trip
again, return amp to Crown or an autho-
rized Crown Service Center for servicing.
No input signal
Input signal level is very low.
Level controls are turned down.
Operation Manual

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