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2.7 连接交流电源

采用功放原装的交流电线组件,将您的功放连接到交流电源上(电源插座)。首先,将电线
组件的IEC端连接到功放的IEC接口上,然后,将电线组件的另一端插入电源插座。

警告:此接口的第三个插脚(接地端)在安全性上起着至关重要的作用。切忌试图使用其它
适配器禁用此接地连接。

功放不产生能量。请确保交流电的电压和电流充足,从而供给功放所需的电能。功放所需要
的交流电源的电压不能高于功放指定工作电压的10%或低于15%,并符合指定的功率要求(功
放后面板的标签有标示)。如果您不能确定交流电源的输出电压值,请咨询您当地的电工。

2.8 保护您的扬声器

在常规使用中,请尽量避免功放输出达到削波状态。因为削波不仅会导致声音质量变差,而
且还可能会导致损坏功放连接负载。内置限幅器可以避免削波发生。

另外,使用中您还需避免功放接收到高强度的超低音。例如,呼吸声或话筒坠落而产生的高
强度低频信号很可能会将功放连接负载烧毁。您也可以开启高通滤波器,避免70HZ以下低频
信号进入功放。当在70V或100V的扬声器系统中使用CST-2120音频变压器时,高通滤波功能很
有用,能防止由于变压器饱和而导致扬声器失真。

2.9 启动步骤

初次启动功放时,请按如下操作步骤进行:

1.  调低音源音量。

2.  调低功放的音量。

3.  将功放接入电源。电源指示灯点亮。

4.  将音源音量调至最佳水平。

5.  调节功放上的音量调节器,直到达到所需您所需要音量输出。

如果您需要更改接线或安装,确保先断开设备的电源线。

Summary of Contents for CSA-2120

Page 1: ...CSA 2120 Public Address System Amplifier User Guide CS Commercial Solution Series...

Page 2: ......

Page 3: ...CSA 2120 Public Address System Amplifier User Guide...

Page 4: ...n operation or maintenance The information provided in this manual was deemed accurate as of the publication date However updates to this information may have occured Trademark Notice JBL is registere...

Page 5: ...re and Connectors 9 2 5 Choosing Output Wire and Connectors 10 2 6 Wiring Your Audio System 11 2 7 Connect to AC Mains 12 2 8 Protect Your Speakers 12 2 9 Startup Procedure 12 3 0 Operation 13 3 1 Pre...

Page 6: ...Connect this equipment only to the power source indicated on the equipment rear panel To reduce the risk of fire or electric shock refer servicing to qualified service personnel or equivalent If conne...

Page 7: ...waste There is a separate collection system for used electronic products in accordance with legislation that requires proper treatment recovery and recycling Private household in the 25 member states...

Page 8: ...60065 2001 Audio video and similar electronic apparatus Safety requirements GB8898 2001 Audio video and similar electronic apparatus Safety requirements EMC GB13837 2003 Sound and television broadcast...

Page 9: ...can be connected between the amplifier and loudspeaker systems to obtain the impedance matching 1 1 Features High power output compact size light weight Accurate uncoloured sound with very low distor...

Page 10: ...ry pack WARNING Before you start to set up your amplifier make sure you read and observe the Important Safety Instructions found at the beginning of this manual 2 2 Installing Your Amplifier CAUTION B...

Page 11: ...e same direction 2 Connect them with the flat bracket 3 Attach an angle bracket to each side of the amplifier assembly with screws 4 Install the amplifier assembly into the cabinet For details of inst...

Page 12: ...other side of the amplifier with screws 4 Install the amplifier assembly into the cabinet For details of installation in the chassis of the cabinet refer to the user guide of your cabinet Solution C W...

Page 13: ...ck connectors see Figure 2 4 Unbalanced lines may be used but may result in hum or RF noise very long cable runs You can also use RCA connectors to connect audio devices for example CD DVD player Howe...

Page 14: ...sible To prevent the possibility of short circuits the wires should be stripped back no greater than 6 mm 1 4 inch see Figure 2 5 2 Suggested below are guidelines to select the appropriate size of wir...

Page 15: ...Channel 1 positive terminal of amp repeat for negative Repeat Channel 2 wiring as for Channel 1 The minimum impedance one of the amplifier channels can drive is 4 Ohms Therefore you can connect up to...

Page 16: ...s wise to avoid clipping the amplifier signal Not only does clipping sound bad it can damage high frequency drivers The built in clip limiter prevents clipping Also avoid sending strong subsonic signa...

Page 17: ...ier with the red Clip LEDs constantly flashing 7 Do not overdrive the mixer which will cause clipped signal to be sent to the amplifier Such signals will be reproduced with extreme accuracy and loudsp...

Page 18: ...3 3 Rear Panel Controls and Connectors D AC Line Connector E Output Connectors 4 pin Euroblock connectors for dual loudspeakers F Amplifier Parameter Switchers Slide DOWN to turn on these functions Sl...

Page 19: ...allows amplifiers without direct 70V or 100V output capability to drive distributed speaker systems designed to operate at those voltages Features Providing two channels of impedance matching for Con...

Page 20: ...inch 48 3 cm equipment rack EIA RS 310B You can have the following options according to your application Rack mounting the transformer module with a CSA 2120 amplifier Rack mounting single unit Wall m...

Page 21: ...from 20 Hz to 1 kHz 50 dB below rated at 20 kHz Input Impedance nominal Balanced 20 k Ohms Unbalanced 10 k Ohms AC Line Voltage and Frequency Configurations Available 100 240 V 50 60 Hz Maximum Input...

Page 22: ...er Service your system installer or retailer On The World Wide Web www jblcommercialproducts com Professional Contacts Outside the USA Contact the JBL Professional Distributor in your area A complete...

Page 23: ...CSA 2120...

Page 24: ...JBL JBL International 2012 JBL Incorporated 8400 Balboa Blvd Northridge CA 91329 USA All Rights Reserved...

Page 25: ...1 2 JBL 4 1 0 5 1 1 5 1 2 5 2 0 6 2 1 6 2 2 6 2 3 9 2 4 9 2 5 10 2 6 11 2 7 12 2 8 12 2 9 12 3 0 13 3 1 13 3 2 14 3 3 14 A 15 B 17 C 17 D 18 E RoHS 19...

Page 26: ...2 E N L L N E 3 240V CSA UL...

Page 27: ...3 25...

Page 28: ...4 Crown Audio Inc 1718 W Mishawaka Road Elkhart IN 46517 USA CSA 2120 IEC60065 2001 GB8898 2001 EMC GB13837 2003 GB17625 1 2003 16A...

Page 29: ...5 1 0 JBL Commercial CSA 2120 CSA 2120 CST 2120 1 1 Euroblock 1 2 JBL Professional...

Page 30: ...6 2 0 2 1 JBL Professional 2 2 2 2 3 2 2 4 2 2 5 2 2 1...

Page 31: ...7 A CST 2120 CST 2120 2 2 3 1 2 3 4 2 2 1 2 2 2 2 2 3 CST 2120...

Page 32: ...8 B 2 2 4 1 2 3 4 C 2 2 5 1 2 2 2 5 2 2 4...

Page 33: ...9 2 3 2 4 JBL Professional 22 24 Euroblock 2 4 RCA CD DVD RCA Euroblock EUROBLOCK CONNECTORS MONO SUM UP R L STEREO R L RCA CONNECTORS G G G G 2 4 RCA Euroblock...

Page 34: ...10 2 5 CST 2120 CST 2120 70 100 2 5 1 6 25 7 6 16AWG 26 40 7 9 12 2 14AWG TO Speaker TO Speaker 2 5 1 CST 2120 2 5 2...

Page 35: ...11 2 6 2 6 1 1 1 1 2 4 16 8 4 70Hz STBY 70Hz 50W 100 240V 50 60Hz 70Hz STBY 70Hz 50W 100 240V 50 60Hz 2 6...

Page 36: ...12 2 7 IEC IEC 10 15 2 8 70HZ 70V 100V CST 2120 2 9 1 2 3 4 5...

Page 37: ...13 3 0 3 1 1 2 3 4 5 6 LED 7 8 9 10 JBL Professional...

Page 38: ...14 3 2 A B LED 40dB LED C 3 3 D E 4 Euroblock F 1 CH1 70 Hz 2 CH2 70 Hz 3 CH1 4 CH2 5 G RCA H Euroblock 3 Euroblock A C B 70Hz STBY 70Hz 50W 100 240V 50 60Hz D E F G H...

Page 39: ...15 A JBL Commercial CST 2120 CSA 2120 4 8 CSA 2120 70 100 CSA 2120 70 100 CSA 2120 Euroblock CST 2120...

Page 40: ...16 1 19 EIA RS 310B CSA 2120 2 4 3 CST 2120...

Page 41: ...4 Ohms 8 Ohms 1 W 1 1 dB 4 8 Ohms 8 Ohms 1 4 Vrms 1 kHz 8 Ohms A 100 dB 8 Ohms 20 1 kHz 70 dB 20 kHz 50 dB 20 k Ohms 10 k Ohms 100 240 50 Hz 60 Hz 20 dBu 1 1 60dBu 95 0 C 40 C x x 8 2 x 1 7 x 7 209 mm...

Page 42: ...1 15 B 6 23 28 852 2942 2100 852 2424 0788 http www acehk com 9 100121 86 10 8536 0422 86 10 8536 0149 info acebj com 716 200082 86 21 5521 1510 86 21 6589 7112 sacek online sh cn 1 4 5 510100 86 20 8...

Page 43: ...19 E RoHS Pb Hg Cd Cr 6 PBB PBDE SJ T11363 2006 X SJ T11363 2006...

Page 44: ...Part Number 142866 1 Issue 02 12 JBL Professional 8500 Balboa Blvd Northridge CA 91329 USA 818 894 8850...

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