Crown Audio Macro-Tech MA5002VZ - Manual (Page 17)

page 17
MA-5002VZ Power Amplifier
Operation Manual
CONDITION: Normal operation.
POSSIBLE REASON:
• This is normal operation for your amp.
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.
6 Troubleshooting
• The amp is set for Parallel Mono mode.
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.
• 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.
• No input signal
• Input signal level is very low.
• Level controls are turned down.
Key
• Output current is being limited because the
load impedance of the channel is too low,
or the output is shorted.
• 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).