Lanzar Car Audio 15 Output levels NOT set correctly, volume level, bare metal, increased, Problem

T B O U B L E S H O O T I N G G U I D E

PROBLEM	POSSIBLE CAUSE
1. There is an audible distortion at a low	• Output levels NOT set correctly.
volume level.	• EQUALIZER frequencies NOT set correctly.
	• Check for shorts on the speaker leads.
2. A whining sound can be heard through the	• Check the red power wire. It muse be
speakers when the audio system is at low	connected directly to the battery.
volume with the engine running. The whining	• Check the system's ground point It muse	13
noise remains unchanged or seems to	make good contact with chassis ground
disappear when the volume level is	(bare metal).
increased.	• The radio and the EQUALIZER must be
	grounded at the same reference point.
3. There is a "motor boating" type of sound	• Check the red power wire. It must be
when the engine is running and the audio	connected directly to the battery.
system volume is set at a reasonably high	• Check the system's ground point. It must
level.	make good contact with chassis ground
	(bare metal).
4. High squeal noise from speakers	• This is almost always caused by a poorly -
	grounded RCA patch cord.