AMI NGX ULTRA, Installation & Owner'S Manual

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22022626 Rev A 28 NGX Ultra Jukebox
LED Indicators
The LEDs are described below to help you isolate a problem.
COMPUTER CORE ASSEMBLY (61197004)
USB Tx LED – It should be flashing, indicating good communication between the motherboard and the I/O
board.
USB Rx LED – It should be flashing, indicating good communication between the motherboard and the I/O
board.
STATUS LED – Flashes three times on power up, but otherwise it should be off.
RS485 Tx LED – It should be flashing, indicating good communication between the I/O board and Rowelink
devices such as the Amplifier and Volume Control Units.
RS485 Rx LED – It should be flashing, indicating good communication between the I/O board and Rowelink
devices such as the Amplifier and Volume Control Units.
IR RECEIVER LED – Flashes when an IR signal is received.
+5VDC – Indicates this voltage from the ATX power supply is present.
+12VDC – Indicates this voltage from the ATX power supply is present.
HDD LED (RED) – Flashes when the motherboard is accessing data on the hard drive.
PWR LED (GREEN) – When lit, indicates the power supply in the Computer Core assembly is on.
PRIMARY POWER AMPLIFIER ASSEMBLY (40991407)
POWER (Green) – When lit, indicates power is applied to the Amplifier.
STATUS (Red) – Indicates the status of the Preamplifier/Amplifier.
COM (Green) – Quick flashes indicate communication with the Core Computer is OK.
MUTE (Red) – Indicates the mute status of the Amplifier (On = muted, Off = not muted)
OVERCURRENT – When lit, indicates the Amplifier is overloaded. Verify speaker load and ensure there are
no shorted speaker wires.
THERMAL – When lit, indicates the Amplifier is overheating. Be sure the cabinet fan(s) are working, the
filters are clean, and nothing is blocking air flow through the cabinet.
RAIL VOLTAGE – When lit, indicates the Amplifier power supply is on or the power supply capacitors have
not yet discharged. To prevent damage to the Amplifiers, DO NOT connect or disconnect the cable between
the Primary Amplifier and the Secondary Amplifier while these two LEDs are lit.