Profile 400SX Benutzerhandbuch

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ROUBLE SHOOTING THE SYSTEM

We have put together this trouble-shooting guide if you experience problems after installing 
the amplifier. Please keep in mind that the majority of problems incurred are caused by 
improper installation and not the equipment itself.  In addition, there are many components in 
the system that could cause various signal problems such as inducted electrical noise and 
engine noise. 

Before you can properly address the problem, you must first find the component that is 
causing the problem.  This will take patience and a process of elimination. 

Blown fuse

Replace

Bad  RCA  Cable(s)

Replace

+12V at power terminal

Check connection

+12V at remote terminal

Check connection

Grounding point clean and tight

Check for ground w/meter

Head Unit's fader not in center position

Set to center position

Check level adjustments

Re-adjust 

Bad RCA cable(s)

Replace

Improper level matching

Re-adjust

Grounding points are clean and tight

Check for ground w/meter

Ground all components at same point

Ground at same point
Change for better ground

Bad RCA cable(s)

Replace

High Quality shielded RCA cables

Rejects inducted noise

Low Vehicle charging system and/or battery Fix and/or replace

Speaker short

Check speaker  connection 
for short circuit

Speaker grounding out

Make sure speaker wires
 do not touch chassis ground

Impedance too low

Check speaker impedance
(Min 2 ohm Stereo, 4 Mono)

Overheating

Check mounting location
for Adequate air Circulation
Speaker impedance too low