I-Tech Series Power Amplifiers
Operation Manual page 33
CONDITION: Computer does not communicate with 
the network devices.
POSSIBLE REASON:
•     Incorrect wiring. See Section 4.5.4 on wiring.
•     IP Addressing is not done correctly. See Section 4.5.5 on address-
ing rules.
CONDITION: Yellow LINK ACT indicator is on but 
green 100Mb indicator in Ethernet connector does 
not illuminate.
POSSIBLE REASON:
•      Network connection is 10 Megabits.
CONDITION: No sound, even though 
the amp has power. Power LED is on with-
out flashing and the amp is receiving an input sig-
nal. Signal indicator is on or flashing.
POSSIBLE REASON: 
• Speakers not connected.
• Open circuit due to speaker failure.
• There is a short on the amplifier output. First 
disconnect your speakers from the affected 
channel(s) one by one to determine if one of 
the loads is shorted.
CONDITION: No input signal. Signal 
indicator is not flashing even though audio is 
applied, and the channel is ready.
POSSIBLE REASON:
• Input signal level is very low.
CONDITION: Data indicator not flash-
ing, even though host computer IQ 
software is active.
POSSIBLE REASON:
• Cable between computer and amplifier is bro-
ken or not connected.
Note: Data indicator flashes only when the amplifier 
is polled for data, or is polled to see whether it is 
online.
5 Troubleshooting 
• Ready LED is off. Channel has been set to 
standby mode via the software.
CONDITION: Yellow LINK ACTIVITY indicator in 
Ethernet connector does not illuminate or flash.
POSSIBLE REASON:
•      Ethernet link is broken.