TR O U B L E S H O O T I N G
I N G
Symptom | Diagnosis | Remedy | ||
Amplifier does not turn on. | Voltage applied to the REM terminal of | Check the alternator, battery, fuse, and | ||
(Power LED is off) | the amplifier is not between 10.5 and | wiring and repair as necessary. If the | ||
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| 15.5 volts or there is no voltage present. | voltage is above 15.5 volts, have the | |
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| electrical system inspected by an au- | |
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| thorized car service center. | |
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| Voltage to the B+ terminal of the ampli- | Check the alternator, battery, fuse, and | |
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| fier is not between 10.5 and 15.5 volts | wiring and repair as necessary. If the | |
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| or there is no voltage present. | voltage is above 15.5 volts, have the | |
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| electrical system inspected by an au- | |
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| thorized car 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 con- | Check connections, substitute with | ||
(Power LED is on) | nected or not functioning properly. | known working source and cables and | ||
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| repair or replace as necessary. | |
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| When using the BLT, Balanced Line | Check connections, substitute with | |
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| Input from BLT is not connected or not | known working BLT and cables and | |
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| functioning properly. | repair or replace as necessary. | |
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| Unbalanced/Balanced Line switch is | Check switch position and correct as | |
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| not selected for corresponding input. | necessary. | |
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| Amplifier is in | Check signal, speaker wiring, and left | |
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| incorrect signal input, speaker wiring, | channel phase selection installation and | |
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| and/or left channel 180° phase selec- | correct as needed. | |
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| tion is chosen. |
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| XCards are missing or not placed prop- | Check crossover switches and XCard | |
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| erly in crossover slots and/or switches | positions and repair or replace as nec- | |
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| are not properly selected. | essary. | |
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| Speaker leads are shorted to each other | Disconnect existing speakers and test | |
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| or to the chassis of the vehicle. | with known working speakers and wires. | |
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| If amplifier plays, check and repair wir- | |
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| ing and installation of speakers as nec- | |
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| essary. | |
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| Speakers are defective. | Disconnect existing speakers and test | |
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| with known working speakers. If ampli- | |
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| fier plays, check and repair speakers as | |
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| necessary. | |
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