Kicker KX2500.1 - Manual (Page 13)

13
KX2500.1 Amplifier
Help
Trouble shooting
If your amplifier does not appear to be working, check
obvious things first such as blown fuses, poor or incorrect wiring
connections, gain controls properly set, etc.
There are two LEDs on the end panel of your Kicker KX series
amplifier, one green and one red. When the green LED is lit this
indicates the amplifier is turned on and no trouble exists. If the
green LED turns off and the red LED is lit this indicates that the
protection circuitry (SORT) is engaged.
The power indicator on top of the amplifier which
illuminates the model badge follows the same function as the
green LED.
Green LED off, no output:
With a Volt Ohm Meter (VOM) check:
+12 volt power terminal (should read +12V to 16V).
Remote turn-on terminal (should read +12V to+16V).
Ground terminal.
Green LED on, no output:
Check RCA connections.
Test speaker outputs with known good speaker.
Substitute known good source unit.
Check for signal on RCA cable with VOM meter in AC
position.
Red LED on, no output:
1.) Amp is very hot.
Thermal protection is engaged. Check for proper
impedance at speaker terminals. Also check for
adequate airflow around amplifier.