Rockford Fosgate FNQ3514 - Manual (Page 8)

8
T
ROUBLESHOOTING
FEATURES - Tweeters
• Inverted Aluminum Dome
• Rubber Surround
• 3 Mounting Applications
• 25mm Voice Coil
Nominal Diameter (inch) 1-7/8" (48mm)
Nominal Impedance (ohms) 4
Ω
Frequency Response 4kHz-24kHz
Sensitivity (SPL@1w/1m) 90dB
RMS Power Handling 100 Watts
(with supplied crossover)
Symptom Diagnosis Remedy
No sound from speakers
Distorted sound from
speakers
Tweeters “burn up”
easily
Engine noise from one
or more speakers
Check wiring, repair or replace.
Check with working amplifier and
repair or replace as needed.
Check wiring with a volt/ohm meter
and repair or replace as needed
Check with working speaker and
repair or replace as needed.
Check wiring, repair or replace.
Check gain settings on amplifier and
readjust as necessary
Check settings on equalizer and
readjust as necessary
Check wiring with a volt/ohm meter
and repair or replace as needed
Re-route speaker wiring away from
noise sources.
Move crossovers away from noise
sources.
Wires not connected properly.
Amplifier has no output.
Speaker wires are shorted to each
other or to the chassis of vehicle.
Speakers are blown.
Incorrect wiring between crossover
and speakers
Excessive power from amplifier
Equalizer (if available) has excessive
boost in the high frequency range
Wires shorted to chassis of vehicle.
Speaker wires are routed near high
power source. (Power cables,
vehicle computers, etc.)
Crossover is mounted near high
power source.
S
PECIFICATIONS