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 internal 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.
PROBLEMS
Symptom | Possible Cause | Check |
No Power or siren output | Power switch not turned on | Does backlighting come on? |
| Bad Speaker | Do you hear a “pop” when turned on? |
| Connector or connections loose | With siren on, yelp selected, listen for tone in amplifier. |
| Internal siren fuse blown | Is an external fuse or circuit breaker used? |
| Loose connection at power source | Are the power leads connected to a good buss? |
No siren tone – | High Voltage Protection | The input voltage must be less than highest rating. |
PA works | Mic button stuck | Does mic button release properly? |
| Cutout activated | Does siren work when Cutout input is disconnected? |
| Cutout Polarity Option set wrong | Is the CUT P option properly configured? |
No PA | PA volume not set properly | Try turning the PA volume control. |
| Selector in Radio position | PA is not available in the Radio position. |
Distorted siren sound | Speaker assembly loose | Is the speaker bell or tip loose? |
| Intermittent Aux Input connection | Is the Aux Input used and wired properly? |
| Low vehicle voltage | The input voltage must be greater than lowest rating. |
Intermittent siren tone | High Voltage Protection | Is the vehicle voltage regulator working properly? |
| Connector or connections loose | Is the connector tight on the back of the unit? |
| Loose connection at power source | Check for loose leads back to power source. |
| Mic button activation | Is something lying on the microphone? |
| Circuit breaker in supply | Is a circuit breaker used with at least 50A rating? |
| connection |
|
Horn or Manual or | Horn switch stuck | Does the Horn switch return fully when released? |
Phaser stuck on | Man/Phsr switch stuck | Does the Man/Phsr switch return fully when released? |
| Aux Input improperly connected | Is the Aux Input used and wired properly? |
| Aux Input Polarity Option set | Is the AUX P option properly configured? |
| wrong |
|
No Radio | Unit not connected to a radio | Is the radio connected properly to the unit? |
| Radio volume too low | Can you hear the radio in the vehicle? |
|
| Try turning the RAD volume control. |
Wrong siren tone | Is the | |
| Aux Input set to wrong function | Is the AUX I option jumper configured properly? |
Phaser not working | Phaser disabled | Is the PHSR option jumper cut? |
Horn not working | Horn disabled | Is the trace cut that disables the Horn switch? |
RETURN
If you have any questions concerning this or any other Carson product, please contact our Technical Service Department at (888)
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.
TB0353A | Page 7 of 8 | 09/27/05 |