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