XA4200, XA4300 | ® | |||
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Troubleshooting | ||||
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| Problem | Possible Cause | Corrective Action | |
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| Amplifier does not operate | No power to +12V terminal | Repair wire or connections. | |
| (power LED not on) when |
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| vehicle and radio are on | No power to remote wire with radio on | Check connections to radio with test light. | |
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| Fuse blown | Check fuse. | |
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| Radio volume needs to be | Input level control adjusted too low | Adjust input level control. | |
| turned up too high for amp |
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| to work |
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| Radio volume is too sensitive | Input level control adjusted too high | Adjust input level control to lower setting. | |
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| Sound from only one speaker | Defective speaker | Replace speaker. | |
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| Poor connections to speaker (wire) | Check connections. | |
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| RCA input cable defective | Replace cable. | |
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| Input level control adjusted too high | Adjust input level control. | |
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| Sound distorted | Speaker wires shorting together | Separate speaker wires and insulate. | |
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| Blows fuses | Power wires hooked up incorrectly | Check power wire connections. | |
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| Speakers blown or defective | Check speakers. | |
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| Engine noise | Improper ground connections | Reroute RCA away from main power wires. | |
| (Ignition noise/static or | Ground loop(s) |
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| Alternator whine) |
| Reroute RCA cable. | |
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| Make sure amp is grounded to a clean, solid part of the chassis/frame. | |
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| Protect light comes on/ | Amp is in thermal protection | Let amp cool down before attempting to turn back on (some installations may | |
| amplifier shuts down |
| require a fan to keep the amp cool, especially if you are driving subwoofers with | |
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| the amp). | |
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| Faulty speaker connection and/or | Check speakers and/or crossovers for loose or bad connections. | |
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| crossover |
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| Low battery voltage | Make sure you are getting between | |
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| multimeter measured at the amplifier. | |
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| Speaker impedance less than 2 ohms | If you are using 4 ohm speakers you cannot have more than two speakers wired | |
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| per channel | in parallel per channel. Amp will not operate into 2 ohms bridged. | |
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| No output on channels | Speaker wires not connected to | Refer to pages 6 – 9 for proper installation. | |
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| speakers properly |
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| Input hooked up incorrectly |
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5910 XA4CH_E.p65 | 13 | 01/23/01, 12:24 PM |
