Owner's Manual

9
PROBLEM CAUSE ACTION
Unit will not
turn on (no
power LED
indicator)
• BAT+ wire not connected or
incorrect voltage REM wire
not connected or incorrect
voltage
• Check connections for
proper voltage (11~16VDC)
• GND wire not connected • Check connection to ground
• Fuse(s) blown • Replace fuse(s)
Unit will not
turn on (no
power LED
indicator)
• Volume turned all the way
down
• Increase volume level at
head unit
• Speaker defective or
damaged
• Check/replace speaker
• Input signal not connected • Check high or low level
inputs for proper connection
Unit blows
fuse(s)
• Incorrect fuse rating • Use fuse(s) with correct
rating
• BAT+ wire touching chassis
ground
• Check for pinched wire
• Subwoofer defective or
damaged
• Check/replace subwoofer
Engine noise • Bad ground connection • Make sure subwoofer is
grounded to clean bare
metal
• Signal ground loop or RFI
(radio frequency interfer-
ence)
• Re-route RCA cables from
existing high current
wiring
Distorted
audio output
• Incorrect input signal
type or input level too
high
• Check connections and
reduce/adjust input level
Low audio
output
• Incorrect input signal
type or input level too
low
• Check connections and
increase or adjust input
level
Weak bass • Low frequency output is
out of phase
• Adjust phase control as
needed
TROUBLESHOOTING