SC-1022-20 Installation Instructions Page 7 of 8
CP5208A 1/3/20
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,
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 the fuse will blow before the unit is damaged. Disconnect the SPKR leads and replace
the fuse. If the amplifier makes noise with Wail mode selected and Enable Input powered the
amplifier is OK. Check the speaker or leads for possible shorting.
PROBLEMS
PARTS and ACCESSORIES
The following parts and accessories are available from Carson Manufacturing Company, Inc.:
See www.carsonsirens.com for additional information
or contact our Service Department at:
E-mail service@carsonsirens.com or Phone (888) 577-6877
Symptom Possible Cause Check
No power or siren
output
No power to enable input (org wire)
Bad speaker
Connector(s) loose
Rear panel fuse blown
Loose connection at power source
Does backlighting come on?
Is the amplifier making noise in Wail?
Do you hear a "pop" when turned on?
Is an external fuse or circuit breaker used?
Are the negative leads connected to a good ground?
No siren tones Bad Speaker
High Voltage Protection
Is the amplifier making noise in Wail?
Input voltage must be less than highest rated voltage.
Distorted siren
sound
Speaker assembly loose
Intermittent Aux Input connection
Low vehicle voltage
Is the speaker bell or tip loose?
Is the Aux Input used and wired properly?
Input voltage must be greater than lowest rated voltage.
Intermittent siren
tone
High Voltage Protection
Connector loose
Bad power connection
Circuit breaker in supply connection
Is the vehicle voltage regulator working properly?
Is the connector tight on the back of the unit?
Is there a loose connection on a power lead?
Is a circuit breaker used with at least a 50A rating?
Horn function
stuck on or
Manual stuck on
Horn or Manual switch stuck
Aux Input improperly connected
Aux Input Polarity Option set wrong
Does the horn or manual switch return when released?
Is the Aux Input used and wired properly?
Is the AUX_P option properly configured?
Wrong siren tone Two-Tone option installed
Tones disabled.
Is the T-T option selected?
Check option switch settings.
Some siren tones
not working
Tone disabled Check option switch settings.
Light switches not
working
Loose output connections
Rear panel fuse blown
Do the Light Control switch indicators light?
Is the corresponding fuse blown?
Accessory Description * - standard accessory supplied with unit
CP4688-10 * Connector, 10-pin Terminal Block Plug (SC-1012)
SC-1022-10CH *
SC-1022 Hand Control Assembly
CP5003 SC-1022 Hand Control Holster
ED1865 SC-1022 Hanger and Holder Kit
ED1753
Cable, Hand Control Extension 15FT Kit (includes CP4652 shielded cable & CP4141 modular coupler)
VELCRO * Velcro Strip Fastener
CP5208 * Instruction Manual
CP5003 * Hand Control Holster
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