XLC Series Power Amplifiers |
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| XLC系列功率放大器 |
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Figure 4.1 Indicators |
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图4.1 指示灯 |
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CH 1 |
| SIGNAL |
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4. Advanced Features and Options |
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| 4. 高级功能和选项 | ||
For detailed information about these Crown amplifier features, please consult the Crown Amplifier Application Guide, |
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| 要了解Crown功放的详细功能，您可以阅读Crown功放应用指南。如需获取此应用指南，您可以通 | ||
available on the Crown website at www.crownaudio.com. |
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| 过访问Crown网址www.crownaudio.com下载。 | ||
4.1 System Protection
Your Crown amplifier provides extensive protection and diagnostic capabilities, including output current limiting, AC under voltage protection, thermal protection and circuit breaker for the unit’s transformers and output devices.
4.1.1 Output Current Limiting
Output Current Limiting circuitry protects the amplifier output stage from damage caused by
4.1.2 Fault
The amplifier will illuminate to alert the user when it is fault. Check all wiring to and from the amplifier and verify if the amplifier is overheat. Once the fault condition persists, see “7. Service” on page 22 for Servicing information.
4.1.3 AC Under Voltage Protection
If the AC line voltage drops below 15% of the nominal operating voltage of the amplifier, the amplifier’s power supply turns off and the blue Power LED turns off. The amplifier will turn back on when the AC line voltage returns to safe operating levels (±10%).
4.1.4 Thermal
The Thermal Protection circuit will activate if the internal heatsink temperature exceeds proper operating temperatures (194° F, 90° C). When the heatsink temperature has fallen to a safe level, this protection circuit will automatically be reset and compress signals. The Fault indicator illuminate at the same time.
The cause of your amplifier’s thermal protection state should be determined and corrected as soon as possible. Without correction, the Thermal Protection circuit will typically reactivate.
4.1.5 Circuit Breaker (Reset Button)
A circuit breaker located near the IEC power inlet protects the amplifier from excessive AC current draw.
4.1.6 Output Connector Security Cover
The installed output connector security cover can prevent unexpected access to the output connector which might cause serious personnel injury. See “2.6 Choosing Output Wiring and Connectors” on page 9.
4.1保护系统
您的Crown功放为变压器和输出设备提供更多的保护和诊断功能，包括输出电流限制、故障、交 流电过低保护、过热保护和断路等。
4.1.1输出电流限制
输出电流限制电路是在功放输出的过程中提供保护，为防止因短路而受到损坏。
4.1.2故障
如果功放出现故障，故障显示灯会点亮提醒用户。检查所有连接至/自功放的线路，以及功放是 否过热。如果故障未能排除，请参见第23页的“7. 服务”获取维修信息。
4.1.3交流电压过低保护
如果交流线电压比功放的额定工作电压低于15%，则功放的电源将关闭并且蓝色“Power（电 源）”LED 指示灯将熄灭。当交流线电压恢复到安全的运行范围（在 ±10% 范围内）时，功放 将重新工作。
4.1.4过热
当功放过热或输出出现故障，可能是过热检查所有连接至/自功放的线路，以确保故障并非由外 部条件导致。如果内部积温超过正常温度(194°F, 90°C)时，热防护电路会被激活并压缩信 号，同时点亮故障指示灯。
功放热防护状态的动因应该尽快确定并得到纠正。如果不纠正，热防护电路会再次运行。
4.1.5断路器（复位键）
电源接口附近的断路器可以避免功放的交流电流消耗过大。
4.1.6输出接口防触摸保护壳
随机所带的输出接口防触摸保护壳可以防止意外接触输出接线而导致严重的人员伤害。请参看第 9页的“2.6 选择输出连接线和接口”。
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Operation Manual | 操作手册 | page 15 | ||