TROUBLESHOOTING
I N G
Symptom | Diagnosis | Remedy | ||
Amplifier does not turn on. | Voltage applied to the REM terminal of the | Check the alternator, battery, fuse, and | ||
(Power LED is off) | amplifier is not between 10.5 and 15.5 | wiring and repair as necessary. If the volt- | ||
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| volts or there is no voltage present. | age is above 15.5 volts, have the electrical | |
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| system inspected by an authorized car | |
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| service center. | |
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| Voltage to the B+ terminal of the amplifier | Check the alternator, battery, fuse, and | |
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| is not between 10.5 and 15.5 volts or there | wiring and repair as necessary. If the volt- | |
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| is no voltage present. | age is above 15.5 volts, have the electrical | |
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| system inspected by an authorized car | |
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| service center. | |
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| Amplifier is not properly grounded. | Check wiring and repair as necessary. | |
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Amplifier has no sound. | RCA Input from source unit is not connected | Check connections, substitute with known | ||
(Power LED is on) | or not functioning properly. | working source and cables and repair or | ||
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| replace as necessary. | |
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| When using the BLT, Balanced Line Input | Check connections, substitute with known | |
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| from BLT is not connected or not function- | working BLT and cables and repair or | |
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| ing properly. | replace as necessary. | |
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| Unbalanced/Balanced Line switch is not | Check switch position and correct as neces- | |
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| selected for corresponding input. | sary. | |
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| Amplifier is in | Check signal, speaker wiring, and left chan- | |
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| incorrect signal input, speaker wiring, and/ | nel phase selection installation and correct | |
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| or left channel 180° phase selection is | as needed. | |
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| chosen. |
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| XCards are missing or not placed properly | Check crossover switches and XCard posi- | |
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| in crossover slots and/or switches are not | tions and repair or replace as necessary. | |
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| properly selected. |
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| Speaker leads are shorted to each other or | Disconnect existing speakers and test with | |
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| to the chassis of the vehicle. | known working speakers and wires. If am- | |
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| plifier plays, check and repair wiring and | |
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| installation of speakers as necessary. | |
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| Speakers are defective. | Disconnect existing speakers and test with | |
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| known working speakers. If amplifier plays, | |
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| check and repair speakers as necessary. | |
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