A T O N |
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| A275 INSTALLATION MANUAL |
Chapter 5: Troubleshooting |
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Symptom | Possible Cause | Solution | |
No Audio From One or | 1. Loose/bad speaker cable connection | 1. | Check cable ends at binding posts and |
More Channels |
| speaker terminals. | |
| 2. Break/short in speaker cable | 2. | Check continuity of each speaker cable |
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| using multimeter. If short or open is indi- | |
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| cated, check wiring for proper connections. | |
| 3. Speaker is defective | 3. | Swap with known good speaker. |
| 4. | Swap with known good patch cable. | |
| 4. RCA patch cable defective | ||
| 5. | Verify source is powered up and playing. | |
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| 5. Source not sending audio | Check any tape monitor settings on A/V | |
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| Receiver. | |
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No Audio From One Channel | Amplifier is overheating due to | 1. | (a) Turn the amplifier off and allow the |
| inadequate ventalation or prolonged opera- | internal circuits to cool. | |
| tion at clipping levels. |
| (b) Ensure that the amplifier has proper |
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| ventilation. Add cooling fan if necessary. | |
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| (c) Lower the gain level controls for that |
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| channel pair. | |
No Audio From One Channel | Unit may require service. | Contact ATON Technical Support. | |
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Very Low or No Sound on Some or All | Audio input cable is bad. | Check source equipment cables for damage | |
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| and faulty connections and correct. | |
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Audio “Hum” | 1. Ground potential difference between | 1. | (a) Test AC outlet using ground tester. |
| source components (ground loop) |
| (b) Reverse the AC plug of components |
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| same outlet strip as amp. | |
| 2. Faulty/damaged cables | 2. | Check source equipment cables for dam- |
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| age and faulty connections. | |
| 3. Faulty wiring | 3. | (a) Make sure volume controls are not |
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| hooked up backwards. | |
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| (b) Check for shorts in wiring (see item |
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| 2 in “No audio…”). | |
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© ATON 2010 • All rights reserved. | Page 13 |
