Art-CX310-xo-sm 电路图 维修手册.pdf

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1、CX310 Stereo 2-Way / Mono 3-Way Active Crossover SERVICE GUIDE RadioFans.CN 收音机爱 好者资料库 IMPORTANT SAFETY INSTRUCTIONS READ FIRST This symbol, wherever it appears, This symbol, wherever it appears, alerts you alerts you to the presence of uninsulated to important operating and maintenance dangerous vo

2、ltages inside the enclosure that instructions in the accompanying literature. may be sufficient to constitute a risk of shock. Please read the manual. Read instructions Retain these safety and operating instructions for future reference. Heed all warnings printed here and on the equipment. Follow th

3、e operating instructions printed in this user guide. Do not open There are no user serviceable parts inside. Refer any service work to qualified technical personnel only. Power sources Only connect the unit to mains power of the type described in this user guide or marked on the rear panel. The powe

4、r source must provide a good ground connection. Power cord Use the power cord with sealed mains plug appropriate for your local main supply as provided with the equipment. If the provided plug does not fit into you outlet consult your service agent. Route the power cord so that it is not likely to b

5、e walked on, stretched or pinched by items placed upon or against. Grounding Do not defeat the grounding and polarization means of the power cord plug. Do not remove or tamper with the ground connection on the power cord. Moisture To reduce the risk of fire or electrical shock, do not expose the uni

6、t to rain, moisture or use in damp or wet conditions. Do not place container of liquid on it, which may spill into any openings Heat Do not locate the unit in a place close to excessive heat or direct sunlight, as this could be a fire hazard. Locate the unit away from any equipment, which produces h

7、eat such as: power supplies, power amplifiers and heaters. Environment Protect from excessive dirt, dust, heat, and vibration when operating and storing. Avoid tobacco ash, drink spillage and smoke especially that associated with smoke machines. Handling Protect the controls from damage during trans

8、it. Use adequate padding if you need to ship the unit. To avoid injury to yourself or damage to the equipment take care when lifting, moving or carrying the unit. Servicing Switch off the equipment and unplug the power cord immediately if it is exposed to moisture, spilled liquid or the power cord o

9、r plug becomes damaged during a lightning storm or if smoke odor or noise is noted. Refer servicing to qualified technical personnel only. Installation Install the unit in accordance with the instruction printed in the user guide. 2 RadioFans.CN 收音机爱 好者资料库 IMPORTANT SAFETY INSTRUCTIONS READ FIRST.2

10、OVERVIEW.4 Features .4 INSTALLATION.5 AC POWER HOOKUP.5 INPUT/OUTPUT CONNECTIONS.5 MONO 3-WAY CONFIGURATION.5 Connections:.5 Controls:.5 OPERATION.6 FRONT PANEL CONTROLS.6 POWER SWITCH.6 CLIP INDICATORS .6 INPUT LEVEL CONTROLS.6 MUTE SWITCHES .6 LOW AND HIGH OUTPUT LEVEL CONTROLS.6 CROSSOVER FREQUEN

11、CY CONTROLS and RANGE SWITCHES .7 REAR PANEL CONNECTORS and CONTROLS.7 XLR JACKS.7 1/4 PHONE JACKS.7 MONO/STEREO MODE SWITCH.7 APPLICATIONS.8 Typical Setup.8 Signal Flow .8 Initial Setup Tips .8 SERVICE PARTS.9 FULL BILL OF MATERIALS.10 Assembly .10 Main Ckt Board.11 SCHEMATICS.13 WARRANTY INFORMATI

12、ON.15 Limited Warranty.15 SERVICE.16 SPECIFICATIONS.17 3 RadioFans.CN 收音机爱 好者资料库 OVERVIEW The ART CX310 Stereo 2-Way/ Mono 3-Way Active Crossover is a perfect addition to any sound reinforcement system. Designed for PA and fixed-installation applications, the CX310 employs 24dB/ octave state-variabl

13、e, fourth-order, Linkwitz-Riley filters. These filters guarantee in-phase outputs at all frequencies. This ensures the proper acoustic summing of common signals from adjacent drivers in the crossover region. The CX310 may be used as either a stereo 2-way crossover network, splitting the signal in ea

14、ch channel into two separate frequency ranges (Lo and Hi), or as a mono 3-way crossover network, splitting one signal into three separate frequency ranges (Lo, Mid and Hi). Each channel features input level, high and low output level and crossover frequency rotary controls. A frequency x10 switch is

15、 provided for varying the crossover frequency from the standard 80Hz - 920Hz to 800Hz - 9200Hz. Front-panel output mute switches are provided for each individual output to ease system setup. The rear panel features balanced XLR and 1/4 TRS input and output connectors as well as a 2-way/ 3-way mode s

16、elector switch. Power for the CX310 is internal. The ART CX310 Stereo 2-Way/ Mono 3-Way Active Crossover has the features and performance you need for any audio application requiring a crossover. Housed in a rugged all-steel chassis, the model CX310 will provide years of reliable and continuous serv

17、ice. Features Stereo 2-way or mono 3-way configurations Fourth-order Linkwitz-Riley filters Balanced XLR and 1/4 TRS input and output connectors Adjustable crossover frequency range (80Hz to 920Hz or 800Hz to 9.2kHz) Independent output level control for each output Individual output muting switches

18、Clipping indicators on all outputs Rugged, fully shielded all-steel chassis Internal AC power supply Three year warranty 4 INSTALLATION The ART CX310 may be used in a wide variety of applications and environments. Enclosed in a 1U (1.75 inches high) rack-mountable, all-steel enclosure, the unit is d

19、esigned for continuous professional use. The depth is 6.5 inches, exclusive of the power cord. Mounting location is not critical. However, for greater reliability, we recommend that you not place the unit on top of power amps or other sources of heat. AC POWER HOOKUP The CX310 has an internal power

20、supply designed to operate from 105 to 120VAC at 50/60Hz. Export units are configured with a different power cord and the voltage switch is set for the country of destination. Before plugging the CX310 into the AC mains, make sure that all of the equipment following the crossover outputs are turned

21、off or that all of the outputs are turned down. INPUT/OUTPUT CONNECTIONS The CX310 has XLR and 1/4 TRS phone jack connectors for each input and output. All connections are active balanced although the 1/4 phone jack connections can easily be converted to unbalanced operation by using two-conductor p

22、hone plugs. Inserting a plug into a 1/4 jack disconnects the associated XLR connector. MONO 3-WAY CONFIGURATION This information is intended to clarify how the CX310 is used in the mono 3-way configuration. Connections: Input Channel One INPUT (Channel Two INPUT not used) Low Output Channel One LOW

23、OUTPUT Mid Output Channel Two LOW OUTPUT High Output Channel Two HIGH OUTPUT (Channel One HIGH OUTPUT not used) Controls: Input Level Channel One INPUT LEVEL control Low Output Mute Channel One LOW MUTE switch Low Output Level Channel One LOW OUTPUT LEVEL control Low/Mid Crossover Channel One RANGE

24、switch and FREQUENCY control (Channel One HIGH MUTE switch and HIGH OUTPUT LEVEL control not used) (Channel Two INPUT LEVEL control not used) Mid Output Mute Channel Two LOW MUTE switch Mid Output Level Channel Two LOW OUTPUT LEVEL control Mid/High Crossover Channel Two RANGE switch and FREQUENCY co

25、ntrol High Output Mute Channel Two HIGH MUTE switch High Output Level Channel Two HIGH OUTPUT LEVEL control 5 OPERATION FRONT PANEL CONTROLS POWER SWITCH The POWER switch applies and removes power to the unit. Make sure that all equipment after the CX310 is either off or the outputs are turned all t

26、he way down before turning the CX310 on or off. CLIP INDICATORS Separate HIGH and LOW CLIP indicators are provided for each channel of the CX310. These indicators will light at approximately 3dB before clipping occurs in any stage of the channel. To prevent overloading the channel, either turn down

27、the CX310 input control or turn down the output level of the piece of equipment feeding the CX310 (i.e. mixer, equalizer or other piece of processing equipment.). INPUT LEVEL CONTROLS An INPUT LEVEL control is provided on each channel of the CX310. If you are using the CX310 as a mono 3-way crossove

28、r, the Channel One INPUT CONTROL is the only one used. The INPUT LEVEL control should be set at its 0 marking in most cases. Increasing or decreasing gain should only be done to make up for deficiencies in other parts of the system. MUTE SWITCHES MUTE switches are provided for each output on the CX3

29、10. These are intended for use when setting up your system and testing either the crossover frequency point or the separate amplifiers and speakers they are feeding. These switches allow you to isolate a specific frequency output on a specific channel for fine-tuning or troubleshooting. It is not re

30、commended that you mute or un-mute any frequency band during normal usage. Levels should be turned down when the MUTE switches are activated or de-activated. LOW AND HIGH OUTPUT LEVEL CONTROLS Each channel of the CX310 has LOW and HIGH OUTPUT LEVEL controls. These controls are used to trim the outpu

31、t levels to the LOW and HIGH OUTPUT jacks on the rear of the unit, respectively. If you are using the CX310 as a mono 3-way crossover, the Channel One LOW OUTPUT LEVEL control sets the level of the LOW OUTPUT, the Channel Two LOW OUTPUT LEVEL control sets the level of the MID OUTPUT, and the Channel

32、 Two HIGH OUTPUT LEVEL control sets the level of the HIGH OUTPUT. 6 These controls attenuate only (there is no gain). In most cases you would set them to 0 (fully clockwise). You can use these controls to prevent overdriving the inputs of your amplifiers or to compensate for variations in amplifier

33、gain or speaker efficiency. Additionally, you can use these controls to balance the level between highs and lows in your system. CROSSOVER FREQUENCY CONTROLS and RANGE SWITCHES Each channel of the CX310 has a crossover FREQUENCY control and RANGE switch to set the crossover point for the high and lo

34、w frequencies. These controls cover the frequency range of 80Hz - 920Hz, with the RANGE switch in the out position (x1), or 800Hz to 9.2kHz, with the RANGE switch in the in position (x10). All frequencies below the set frequency will be sent to the LOW OUTPUT and all frequencies above will be sent t

35、o the HIGH OUTPUT. When the CX310 is used as a stereo 2-way crossover, both RANGE switches will most commonly be used in the out position (80Hz-920Hz). When used as a mono 3-way crossover, the Channel One FREQUENCY control is used to set the Low/Mid frequency point and the Channel Two FREQUENCY control is used to set the Mid/High frequency point. In this