SBP8A INSTALLATION
Troubleshooting
Problem | Cause | Action | |
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Unit will not turn on | BAT+ wire not connected or incorrect voltage | Check connections for proper voltage | |
(no power LED indicator) | REM wire not connected or incorrect voltage | (11~16VDC) | |
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| GND wire not connected | Check connection to ground | |
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| Fuse(s) blown | Replace fuse(s) | |
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Unit has power - LED is | Volume turned all the way down | Increase volume level at head unit | |
blue (but no sound) |
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Speaker defective or damaged | Check/replace speaker | ||
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| Input signal not connected | Check high or low level inputs for | |
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| proper connection | |
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Unit blows fuse(s) | Incorrect fuse rating | Use fuse(s) with correct rating | |
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| BAT+ wire touching chassis ground | Check for pinched wire | |
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| Speaker defective or damaged | Check/replace speaker | |
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Engine noise | Bad ground connection | Make sure amplifier is grounded to | |
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| clean bare metal | |
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| Signal ground loop or RFI (radio frequency | ||
| interference) | high current wiring | |
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Distorted audio output | Incorrect input signal type or | Check connections and reduce/adjust | |
| input level too high | input level | |
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Low audio output | Incorrect input signal type or | Check connections and increase or | |
| input level too low | adjust input level | |
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Weak bass | Low frequency output is out of phase | Adjust phase control as needed | |
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