Troubleshooting, Problem Causes and Solutions

TROUBLESHOOTING

POWER LED is not lit.

1.Fuse is blown and needs replacement.

2.Head unit not functioning properly.

3.Check remote turn-on, power and ground connections.

POWER LED is lit but there is no bass.

1.Inputs are not connected. Check connections.

2.Head-unit fader controls are not set properly. Adjust head-unit controls to feed audio signals to BassPro II.

3.Incorrect GAIN control setting.

Output sounds muddy or distorted.

1.GAIN is set too high.

2.Bass level is set too high on head unit.

3.Head unit output is distorted or blown. See your authorized JBL car audio dealer.

Output gets louder when the head-unit balance is adjusted to L or R.

Using speaker-level connection: one of the speaker connections is reversed (+/–). Reverse one channel.

POWER LED remains ON after system is turned off.

Speaker-level connections have a five- minute turn-off delay. Check the unit at a later time.