Rowe GrandSTAR, Service Manual

Page: 71 / 120

Grand STAR Internet Jukebox Troubleshooting
22022603 7-3
4 Channel Preamplifier
Power LED
Should be on. Indicates when all 4 voltages are present (+5 V, +8.5 V, +15 V, -15 V).
Status LED
On Power Up (Power applied to the AV Controller) this LED flashes 3 times.
Rowelink LED
Should be flashing **. Flashes when the AV Controller sends a RL signal back to the
Rowelink Controller. Rate is approximately twice per second.
Volume Control Unit
Period LED (on the 10’s digit)
Should be dimly flashing ** at a relatively fast rate. Indicates when Rowelink Master
Commands are sent from the Computer Core via the Rowelink Controller.
Period LED (on the 1’s digit)
Should be dimly flashing ** at a relatively fast rate. Indicates when the Volume Control
sends a RL signal back to the Rowelink Controller.
Power Amplifier
Yellow Clip LED
Should be off. If on, the input signal to the Power Amplifier is to high, which will cause the
output signal distortion to increase.
Red Overload LED
Should be off. If on, the speaker outputs are overloaded.
Computer Core Assembly
The Computer Core Assembly also has two Ethernet LEDs that are built into the Ethernet
socket. The yellow LED indicates a connection at 10 MB and the green LED indicates a
connection at 100 MB. The green LED should be active on the Core Computer Assembly.
Hard Drive Green LED
Should be on. Indicates if the hard drive has power applied to it.
Hard Drive Red LED
Should flash occasionally. Flashes if the hard drive is being accessed. See Figure 2-4 for
the location of these hard drive LEDs.
** When the CORE COMPUTER ASSEMBLY is powered up, then it may take several
minutes for the Rowelink LEDs to start flashing.