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| TROUBLESHOOTING |
| 9 | |
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PROBLEM |
| POSSIBLE CAUSE |
| POSSIBLE SOLUTION |
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No sound | 1. | Power cord not plugged in. | 1. | Reconnect power cord. |
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(power 'on' LED not illu- | 2. | Power off at AC source. | 2. | Check AC switch or fuse. |
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minated). | 3. AC power inlet fuse blown or | 3. Check for shorts or overloading. |
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| faulty. | 4. Supply Control IN with a |
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| 4. | Control voltage not activated. | DC supply (Page 8). |
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| 5. | Power switch in off position | 5. | Push in power switch. |
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| (out). |
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No sound on some or all | 1. | Speaker leads loose or faulty. | 1. Tighten, repair or replace cable. |
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selected channels | 2. | Preamp to amp cables loose | 2. Tighten, repair or replace cable. |
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(power 'on' LED illuminat- | or faulty. | 3. Tighten, repair or replace cable. |
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ed). | 3. | Source to line stage cables | 4. Check all source settings. |
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| loose or faulty. | 5. Check all speaker fuses and replace |
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| 4. | Line stage or source not cor- | if blown. Replace fuse with same type |
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| rectly selected. | and value. |
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| 5. Speaker fuse blown. | 6. | Press balanced button to switch bal- |
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| 6. | Balanced button “in” when | anced inputs off (out position). |
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| using RCA’s. |
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Sound lacks direction | 1. | Speakers connected out of | 1. | Check all connections making sure |
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weak bass. | phase. | that cables are connected (+) to (+) and |
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Loud hum or buzz on | 1. | Poor ground connection in | 1. | Check all connectors and repair as |
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one or more channels. | necessary. |
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Channel sounds | 1. | Blown rail fuse. | 1. | WARNING: Blown rail fuses can be |
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distorted and low output. |
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| an indication of a larger problem. |
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| Replace ONLY with same type and |
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| value. If fuses continue to blow, con- |
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| sult a service professional. |
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| Rail fuses require internal service. |
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***Note: If unit continues to blow power fuses, DO NOT USE A HIGHER RATED FUSE, please con- tact customer service to have the unit serviced. When servicing fuses always disconnect AC power
before replacing.
CARE AND CLEANING
Under normal use, the amplifier will not require any special care. Over time you may wish to clean the exterior of the unit by wiping it with a cloth to remove any dirt or dust that accumulates on it. Unplug the amplifier and be sure that it has completely powered down before cleaning. Do not let any liquid enter the amplifier through the vents in the top cover. LIQUIDS CONDUCT ELECTRICI- TY!!! You may clean the connectors on the back panel with isopropyl alcohol annually.
