Carson SA-400-17 manual or contact our Service Department at

Page 10 of 12 SA-400-17 Installation and Operating Instructions

SERVICE

This unit is designed to provide years of reliable service under even the worst conditions. Many times there may appear to be a problem with the unit when the true problem is in the speaker(s) or improper installation. The following chart shows typical symptoms and possible causes.

A blown rear panel fuse doesn't necessarily mean that the unit is bad. If a speaker or speaker lead is shorted this fuse will blow before the unit is damaged. Disconnect the SPKR leads and replace the fuse. If the siren emits a sound when in the Yelp position it is OK. Check the speaker

(s) or leads for possible shorting.

PROBLEMS

Symptom	Possible Cause	Check
No power or siren	Power switch not turned on	Does backlighting come on?
output	Bad speaker(s)	Do you hear a "pop" when turned on?
	Connector loose	With siren on, yelp selected, listen for tone in amplifier.
	Fuse blown	Is an external fuse or circuit breaker used?
	Loose connection at power source	Are the negative leads connected to a good ground?
No siren tone -	High Voltage Protection	Input voltage must be less than highest rated voltage.
PA works	Mic button stuck	Does mic button release properly?
No PA	PA volume not set properly	Have you tried turning the PA volume control?
	Selector in Radio position	PA is not available in the Radio position
Distorted siren	Speaker assembly loose	Is the speaker bell or tip loose?
sound	Intermittent Aux Input connection	Is the Aux Input used and wired properly?
	Low vehicle voltage	Input voltage must be greater than lowest rated voltage.
Intermittent siren	High Voltage Protection	Is the vehicle voltage regulator working properly?
tone	Connector loose	Is the connector tight on the back of the unit?
	Bad power connection	Is there a loose connection on a power lead?
	Mic button activation	Is something lying on the microphone?
	Circuit breaker in supply connection	Is a circuit breaker used with at least a 50A rating?
Horn function	Siren switch stuck	Does the Siren switch return fully when released?
Or Manual stuck	Aux Input improperly connected	Is the Aux Input used and wired properly?
on		Aux Input is activated with positive or negative.
No Radio	Unit not connected to radio	Is the radio connected properly to the unit?
	Radio volume too low	Can you here the radio in the vehicle?
		Have you tried turning the RAD volume control?
Wrong siren tone	Two-Tone option installed	Is the T-T option switch turned on?

See www.carsonsirens.com for additional information.

or contact our Service Department at:

E-mail service@carsonsirens.com or Phone (888) 577-6877

08/06/08 CP5012A