A275 INSTALLATION MANUAL |
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Symptom | Possible Cause | Solution | |
Distorted Audio at Normal | 1. Input gain set too high | 1. | Reduce gain to the channel in question. |
Volume Levels |
| 2. | (a) Check for physical damage to |
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| 2. Defective/incompatible speaker | speaker. | |
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| (b) Ensure speakers have appropriate |
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| power rating for amplifier. | |
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| (c) Ensure speakers are rated @ 8 Ohm |
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| impedance. This amp is compatible with | |
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| speakers with 8 Ohm impedance or greater. | |
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| 3. | Check for proper input/output connec- |
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| tions at volume control. Input comes from | |
| 3. Volume control wired incorrectly | amplifier, output goes to speakers. | |
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| 4. | Verify/correct Impedance Match settings. |
| 4. Volume control Impedance Match |
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| settings incorrect |
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Audio is Unclear, Bass | Speakers out of phase | Verify that + of amplifier goes to +of speak- | |
Response Low |
| er and - of amplifier goes to - of speaker | |
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| on ALL speaker leads. | |
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Incorrect Source Playing | 1. Source connected to wrong | 1. | Verify/correct input connections. |
on Speakers | input of amplifier |
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| 2. Speakers connected to incorrect | 2. | Verify/correct speaker connections. |
| speaker outputs |
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| 3. DIP switches set incorrectly | 3. | Verify/correct DIP switch settings. |
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Amplifier Will Not | 1. Power switch is Off | 1. | Turn switch On. Switch is located on the |
Power Up |
| back of unit. | |
| 2. Circuit breaker tripped | 2. | Reset circuit breaker. Ensure that com- |
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| bined current draw of all devices on circuit | |
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| does not exceed the circuit’s capacity. | |
Technical Support
If, after carefully following the steps in the Troubleshooting section, you are unable to resolve issues with the installation or operation of the A275, please call ATON Technical Support at 1 (859)
| © ATON 2010 • All rights reserved. |
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