Carson SC-550-10 Especificações descarregar pdf (Página 8)

TB0339A Page 8 of 9 10/18/03

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), controlled devices, or improper

installation. The following chart shows typical symptoms and possible causes.

A blown siren 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 unit itself emits a low level

sound when in the Yelp position it is OK. Check the speaker(s) or leads for possible shorting.

Note: Original shipments of this unit used 20AMP fuses to protect the light control outputs. 25AMP fuses are now

recommended to prevent overheating of the output connection block. The outputs should still be limited to 20AMPS.

PROBLEMS

Symptom Possible Cause Check

No Power or siren output Power switch not turned on

Bad Speaker

Connector or connections loose

Siren fuse blown

Loose connection at power source

Does backlighting come on?

Do you hear a “pop” when turned on?

With siren on, yelp selected, listen for tone in amplifier.

Is an external fuse or circuit breaker used?

Are the power leads connected to a good buss?

No siren tone –

PA works

High Voltage Protection

PA PTT button stuck

The input voltage must be less than highest rating.

Does PTT button release properly?

No PA PA volume not set properly Try turning the PA volume control.

Distorted siren sound Speaker assembly loose

Intermittent Aux Input connection

Low vehicle voltage

Is the speaker bell or tip loose?

Is the Aux Siren Input used and wired properly?

The input voltage must be greater than lowest rating.

Intermittent siren tone High Voltage Protection

Connector or connections loose

Loose connection at power source

PA PTT button activation

Circuit breaker in supply

connection

Is the vehicle voltage regulator working properly?

Is the connector tight on the back of the unit?

Check for loose leads back to power source.

Is something lying on PTT button?

Is a circuit breaker used with at least 50A rating?

Horn or Manual or

Two-Tone stuck on

Siren button switch stuck

Aux Siren switch stuck

Aux Input improperly connected

Does the Siren button switch return fully when released?

Does the Aux Siren switch return fully when released?

Is the Aux Siren Input used and wired properly?

No Radio Unit not connected to a radio

Radio volume too low

Is the radio connected properly to the unit?

Can you hear the radio in the vehicle?

Try setting the Radio Volume Adjust.

Wrong siren tone Automatic Siren Override Move slide switch off of position 3?

Automatic Siren not

working

Automatic Siren disabled Is the Automatic Siren option off?

Light Output not working Light Control Output fuse blown

Internal relay contacts bad

Is the light or device shorting?

Is the output current limited to 20AMPS?

Light Output stays on Internal relay contacts fused from

overheating

Is the output current exceeding 20AMPS?

RETURN

If you have any questions concerning this or any other Carson product, please contact our Technical Service

Department at (888) 577-6877. Many issues can be handled over the phone. We can also be reached via e-mail at

[email protected]

If a product must be returned for any reason, please contact our Technical Service Department to obtain a Returned

Merchandise Authorization number (RMA#) before you ship the product to Carson. Please write the RMA# clearly on

the package near the mailing label. Be sure to provide a return address, contact and phone number, along with a brief

description of the problem.

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