Crown 137769-3 operation manual Troubleshooting, Additional Error Checking

6 Troubleshooting

DBC Network Bridge

POWER AES/EBU DATA

CONDITION: Power indicator is off.

POSSIBLE REASON

•The unit has lost AC power.

•The unit is not plugged into the power receptacle.

INPUT

1 2 3 4 5 6 7 8

OUTPUT

1 2 3 4 5 6 7 8

CONDITION: Input LEDs are off.

POSSIBLE REASON:

• The unit is not receiving an analog or dig-

ital (CobraNet) input signal. Check

cables, cable wiring, and connections.

• The source feeding the DBC Network

Bridge is not producing a signal. Check

its output signal.

POWER AES/EBU DATA

CONDITION: AES/EBU indica- tor is off, even though the unit is being fed an AES/EBU signal.

POSSIBLE REASON

•The AES input has not been selected, either from the front panel or in IQwic software.

•	The cable between the signal source and
	the DBC Network Bridge is defective.
	Replace or repair it.
•	Addressing has not been set up correctly.
	Please review Section 1.2.

POWER AES/EBU DATA

CONDITION: Data indicator is off, even though the unit is con- nected to a network.

POSSIBLE REASON:

•Unit is not receiving data. Check net- work addressing of all components.

•Note: Data indicator flashes only when the amplifier is polled for data, or is polled to see whether it is online.

INPUT

1 2 3 4 5 6 7 8

OUTPUT

1 2 3 4 5 6 7 8

CONDITION: Output LEDs are off but Input LEDs are flashing.

POSSIBLE REASON:

•In IQwic, Signal Path tab, Cinema Sur- round form, the output path has not been set up.

Additional Error Checking

The CobraNet Setup window (Section 5.2.1) describes a group of error indicators that show errors associated with CobraNet status.

Internal errors are automatically displayed on the LCD Display Screen. If an error is displayed, call Tech Support at Crown and provide them the error number.

page 70 Operation Manual