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JENSEN
JA SERIES
Troubleshooting
Problem
Cause
+ 12V wire not connected or incorrect
voltage. REM wire not connected or
Unit will not tum on
incorrect voltage
(no power LED
indicator)
GND wire not connected
Fuse(s) blown
Speaker wires not connected
Volume turned all the way down
Unit has power -
One or more speaker wires touching
each other or touching chassis ground
LED is green (but
no sound)
Speaker(s) defective or damaged
Input signal not connected
Incorrect fuse rating
Unit blows fuse(s)
+ 12V wire touching chassis ground
Speaker(s) defective or damaged
Bad ground connection
Engine noise
Signal ground loop or RFI (radio
frequency interference)
One or more speaker wires touching
each other or touching chassis ground
Speaker(s) defective or
LED illuminates red
damaged internally (shorted)
(protect mode)
Speaker load less than 2 ohms (stereo).
Speaker load less than 4 ohms (bridged)
Distorted audio
Incorrect input signal type or
output
input level too high
Incorrect input signal type or
Low audio output
input level too low
Adion
Check connections for proper voltage
(11-16VDC)
Check connection to ground
Replace fuse(s)
Check connections at speakers
Increase volume level at head unit
Insulate all bare speaker wires from
each other and chassis ground
Check/replace speaker(s)
Check high or low level inputs for
proper connection
Use fuse(s) with correct rating
Check for pinched wire
Check/replace speaker(s)
Make sure amplifier is grounded to
clean bare metal
Re-route RCA cables from existing high
current wiring
Insulate all bare speaker wires from
each other and chassis ground
Check/replace speaker(s)
Adjust speaker load - amplifier will
not operate al less than 4 ohms when
bridged
Check connections and reduce/adjust
input level
Check connections and increase/adjust
input level
Typical Wire Routing
JA2B
POWER
,,.
1-CMAXIM UMJi
REM
+12V
(TURN-ON LEAD)
(BATTERY)
Speakers, head unit, wiring kit, and speaker wire sold separately.
JENSEN
JASERIES
POWER
"
1-IMAX IM.JMli
FUSE
REM
+12V
(TURN-ON LEAD)
(BAffiRY)
Subwoofer, head unit, wiring kit, and speaker wire sold sep.'lrately.
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