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Kicker ix 406 impulse Manual

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Troubleshooting
The LED mounted on the end panel of the amplifier lights up in two different colors depending on the condition
of the amplifier. Green indicates that the amplifier is turned on and no trouble exists. When it turns red this indi-
cates that the protection circuit has been engaged. The LED on the top of the amplifier chassis indicates that the
amplifier is on. When the protection circuit is engaged, this LED turns off.
Green power indicator off, no output:
• With Volt Ohm Meter (VOM) check:
1. +12v power terminal
2. Ground terminal
3. Remote turn-on lead
Green power indicator on, no output:
• Check RCA and connections
• Test speaker outputs with known good speaker
• Check function of source unit
• With VOM in AC volts position check RCA for signal
No output from one channel:
• Check RCA and speaker connections for that channel
• Swap RCA connections from left to right
• Swap speaker connections between channels
Red LED protection indicator is lit and there is no output:
Case 1: Amp is very hot
• Thermal protection is engaged. Check for proper impedance at speaker terminals.
Also check location of amplifier to ensure proper air flow around heatsink.
Case 2: Output resumes momentarily when system is turned off and back on.
• Short circuit protection is engaged. With VOM check for short between speaker positive and negative,
and between speaker terminals and ground.
Alternator noise (a whining that varies with engine RPM)
• Make sure that the ground for the source is as short as possible and connected to bare chassis metal.
The stock radio ground may not be sufficient.
• Check RCA cable routing and condition. Keep RCA cables away from all power wires.
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