Troubleshooting
Before removing your amplifier, locate the problem in the following table. Always test the speakers and speaker wires before troubleshooting the amplifier.
| Symptom | Solution |
|
|
The amplifier | • Make sure that the amplifier has a good |
will not turn on. | ground connection. |
| • Make sure that the power at the remote |
| DC terminal is at least 7VDC. |
| • Make sure that there is battery power at |
| the positive (+) terminal. |
| • Make sure that all fuses are good. |
| • Make sure that the indicator LED is not |
| red. If the indicator LED is red, turn off |
| the amplifier briefly, then turn it back on. |
|
|
A high hiss or | Disconnect all RCA inputs to the amplifier. If |
engine noise | the hiss or noise goes away, plug in the |
(alternator | component driving the amplifier and unplug its |
whine) is | inputs. If the noise goes away, start plugging |
audible in the | in the inputs until the noisy component is |
speakers. | found. |
| We recommend that you set the amplifier |
| input sensitivity as low as possible. This will |
| result in the best possible S/N ratio. Also, try |
| to drive as high a signal level as possible from |
| the head unit. |
|
|
The indicator | • Make sure that there are no shorts on |
LED turns red | the speaker leads. |
when the | • Make sure that the volume control on the |
amplifier is | head unit is turn down low. |
turned on. | • Remove the speaker leads and reset the |
| amplifier. If the indicator LED is still red, |
| the amplifier is faulty. |
| Note: To protect the amplifier from damage, it |
| will shut down automatically when its |
| temperature reaches 176°F (80°C). |
|
|
The amplifier | • Make sure that the minimum speaker |
gets very hot. | impedance is correct. |
| • Make sure that there are no speaker |
| shorts. |
| • Make sure that there is good airflow |
| around the amplifier. In some situations, |
| a fan may be required for proper cooling |
| of the unit. |
|
|
10www.insignia-products.com