klark teknik DN3600C电路图.pdf

Operators & Service Manual DN3600C Version 3.0C TELEX PRO AUDIO GROUP Klark Teknik Building Walter Nash Road, Kidderminster Worcestershire DY11 7HJ England Tel: (01562)741515 Fax: (01562)745371 RadioFans.CN 收音机爱 好者资料库 1 CONTENTS DECLARATION OF CONFORMITY 3 INTRODUCTION 7 INSTALLATION 8 INSTRUMENT FAMILIARISATION 9 GETTING STARTED 10 Q SWITCHING 12 MEMORY OPERATION 13 AUTO EQ 14 AUTO GAIN 17 MASTER/SLAVE OPERATION 18 REFERENCE SECTION: DETAILS OF OPERATION 20 DEFAULT/START UP 20 FADER ADJUSTMENT 20 GAIN ADJUSTMENT 20 CURVE/FADER 20 MORE EQ 21 A : B : LINK 21 UTILITIES 21 BYPASS AND RESET 21 MORE EQ MENU AND DISPLAY 22 FILTERS 22 A : B : LINK 22 IN/OUT 22 EXIT 22 FILTER ADJUST 23 NOTCH1/2 23 23 BACK 24 UTILITIES MENU 24 AUTO/Q 24 MEMORY 24 MORE. 24 EXIT 24 AUTO/Q MENU 25 AUTO GAIN 25 AUTO EQ 25 Q TYPE 25 EXIT 25 RadioFans.CN 收音机爱 好者资料库 2 MEMORY/LOCKOUT MENU 26 RECALL 26 SAVE 26 LOCK 27 FULL 27 PARTIAL 27 EXIT 27 MORE. MENU 28 SLAVES 28 STAND ALONE 28 ALL 28 SLAVES 1 TO 64 28 MIDI CHAN 29 ADJ. LCD 29 INV LCD 29 FREQUENCY ENCODER 29 LEVEL ENCODER 29 EXIT 29 TECHNICAL SPECIFICATION 30 MENU STRUCTURE 31 SERVICE INFORMATION: FUSE SPECIFICATION 34 MIDI CONNECTIONS 34 VOLTAGE CHANGE OVER 34 SCHEMATIC DIAGRAMS 36 RadioFans.CN 收音机爱 好者资料库 3 DECLARATION OF CONFORMITY The Directive Covered by this Conformity 89/336/EEC Electromagnetic Compatibility Directive, amended by 92/31/EEC & 93/68/EEC. 73/23/EEC Low Voltage Directive, amended by 93/68/EEC. The Products Covered by this Declaration Equipment TypeProduct NameVariants Graphic EqualiserDN300DN360, DN301, DN332 Preset EqualiserDN320DN330 Parametric EqualiserDN405DN410 Dynamics ProcessorDN500DN504, DN510, DN514 Audio AnalyserDN6000 CrossoverDN800 Delay LineDN7204DN7103 Programmable EqualiserDN3600DN3601 Remote Control SystemDN3698DN3603 CrossoverDN8000 Programmable EqualiserDN4000 The Basis on which Conformity is being Declared The Products named above and hence the Variants thereof listed above comply with the re- quirements of the above EU directives by meeting the following standards: EN 50081-1 (EN55022 class B) EN 50082-1 (IEC801 Part 2, 4 / ENV 50140 / ENV 50141 EN 60065. Signed:.N. G. Tembe Authority:Head of Engineering, EVI Audio (U.K.) Plc Date:1st January 1997 Attention! The attention of the specifier, purchaser, installer or user is drawn to the special limitations to use which must be observed when these products are taken into service to maintain compliance with the above directives. Details of these special measures and limitations to use are available on request, and are also contained in product manuals. 4 Attention! Cables: This product should only be used with high quality, screened twisted pair audio cables, termi- nated with metal bodied 3-pin XLR connectors. The cable should be connected to pin 1. Any other cable type or configuration for the audio signals may result in degraded performance due to electromagnetic interference. Electric Fields: Should this product be used in an electromagnetic field that is amplitude modulated by an audio frequency signal (20Hz to 20KHz), the signal to noise ratio may be degraded. Degrada- tion of up to 60dB at a frequency corresponding to the modulation signal may be experienced under extreme conditions (3V/m, 90% modulation). 5 THANK YOU FOR USING THIS KLARK TEKNIK PRODUCT To obtain maximum performance from this precision electronic product, please study these instructions carefully. Installation and operating the DN3600 is not complicated, but the flexibility provided by its operating features merits familiarisation with its controls and connections. This unit has been prepared to comply with the power requirements that exist in your location. Precautions Before connecting the unit to the mains power, ensure that the operating voltage is correct for your local supply. Operating voltage is indicated on the rear panel. Do not install this unit in a location subjected to excessive heat, dust or mechanical vibrations. Power Connection Connection is made by means of an IEC standard power socket. The unit will operate off any AC voltage between 100 Vac and 240 Vac 50 Hz to 60Hz. Before connecting this unit to the mains supply, ensure that the fuse fitted is the correct type and rating, as indicated on the rear panel, adjacent to the fuse holder. Safety Warning This unit is fitted with 3-pin power socket. For safety reasons the earth lead should not be disconnected. If you encounter a problem with earth-loops, remove the ground-lift link located inside the unit to isolate the signal earth from the chassis earth (see Service section for details). This should be carried out by a qualified service technician only. To prevent shock or fire hazard, do not expose the unit to rain or moisture. To avoid electrical shock, do not remove covers. Dangerous voltages exist inside. Refer servicing to qualified personnel only. 6 After you have unpacked the unit Save all the packing materials - they will prove valuable should it become necessary to transport or ship this product. Please inspect this unit carefully for any signs of damage incurred during transportation. It has undergone stringent quality control inspection and tests prior to packing and left the factory in perfect condition. If, however, the unit shows any signs of damage, notify the transportation company without delay. Only you, the consignee, may institute a claim against the carrier for damage during transportation. If necessary, contact your supplier or as a last resort, your Klark Teknik importing agent, who will fully co-operate under such circumstances. 7 INTRODUCTION Designed to meet and exceed the needs of the recording, broadcast, installation and live sound industries, the Klark Teknik DN3600 Programmable Graphic Equaliser is an extremely high quality, digitally controlled, two-channel, third-octave equaliser that combines state-of-the-art audio performance with unprecedented ease of use. The two channels may either be used independently or linked for stereo use. To further extend the flexibility of the equaliser, the unit also incorporates variable frequency low and high-pass filters, two notch filters with variable frequency and depth and overall gain adjustment. Featuring a very large backlit LCD display window, the DN3600 may store up to 66 equaliser programs and the inclusion of a Pro MIDI interface enables several other DN3600s or DN3601 slave units (64 maximum) to be controlled from a single DN3600. The slave units are electrically identical to the DN3600 but have limited control and display facilities. A 16-pin connector is provided for use in conjunction with the DN60/DN6000 Real Time Spectrum Analyser enabling room analysis and equalisation to be accomplished automatically. The proprietary analogue filters are based around the Klark Teknik “MELT” hybrid filter circuits which offer far greater headroom and dynamic range than is possible using standard 20-bit linear, digital systems. Benefiting from revised circuitry, these filters are exceptionally reliable and offer greater stability than discrete designs. They are also relatively immune to electromagnetic interference, unlike coil-based filters. Separate supply rails are used for the digital and analogue circuitry which, in combination with rigorous internal screening, ensures the cleanest possible audio signal path. In order to provide maximum operational flexibility, the system includes a switchable Q mode. The Low Q setting (Q:360) provides an accurate emulation of the industry-standard DN360 equaliser. In High Q mode (Q:27), the performance emulates the DN27. To maintain the optimum signal to noise ratio and headroom at all equaliser settings, the gain control acts on the equaliser sections themselves rather than being a simple pre or post- equalisation gain stage. Additionally, an Auto gain mode is included in the system which automatically scales the gain of the individual equaliser bands as cut or boost is applied to reduce the risk of accidental clipping and to maintain a safe working headroom. Both the input and output circuitry is electronically balanced with a nominal operating level of +4dBu. The output circuitry is based on the Midas XL3 output stage, giving exceptionally high drive capability. A transformer option is available for both inputs and outputs. 8 In order to make the DN3600 as straightforward to use as a conventional graphic equaliser, the backlit LCD window provides a virtual representation of a conventional graphic equaliser as well as the settings of the shelving high and low-pass filters and the notch filters. The use of multi-function buttons for regularly accessed functions has been avoided to enable the unit to be adjusted quickly and efficiently while the Curve display function provides the user with a frequency response display based on the combined operation of the graphic, shelving filters, notch filters and gain. Installation The inputs and outputs are electronically fully balanced on XLR connectors and are wired conventionally with pin 1 as ground. Because the system is fully floating, either pin 2 or pin 3 can be designated as hot so long as the same protocol is adhered to for both the input and the output connectors. The DN3600 is designed for use in both fixed and mobile installations where it can be mounted in a conventional 19 inch rack occupying just 2U of height. In mobile situations where rough handling is a possibility, it is advisable to support the rear of the unit to prevent undue stress being placed on the front panel. Ensure that the unit has sufficient ventilation and that it is not placed directly over any device which runs hot such as a power amplifier or console power supply. 9 Instrument Familiarisation Front panel functions DISPLAY SCREEN: This is a large, backlit Supertwist-type LCD which shows white/green legend on a blue background. Menu options are listed down the left hand end. Various status information is shown along the top edge. In normal operating mode, the largest part of the screen displays the Virtual graphic equaliser faders for one channel. LCD contrast is adjusted via a menu option. See the Adj. LCD section for more details. In addition the LCD backlight features a bright up feature which increases the LCD backlight brightness when the controls are operated. The bright up period can be set under software control via the Adj. LCD menu from 2 seconds to 60 seconds. FREQUENCY BUTTONS: These 30 dedicated keys, each labelled with a separate ISO centre frequency, are used to select graphic frequency bands and to set low pass, high-pass and notch filter positions. A number of adjacent bands may be selected by pressing two keys either at once or in quick succession. The selected fader or faders in the display window may be adjusted by means of the LEVEL control. An alternative method of frequency selection is to use the FREQ rotary control. FREQ: This rotary control may be used to select any of the equaliser bands for adjustment as an alternative to using the Frequency buttons. Also, a number of adjacent faders may be selected by holding a single button until it flashes and then using the FREQ rotary control. The FREQ rotary control may also be used to set the frequency of Notch filters and of the High pass filter. LEVEL: This rotary control is used to adjust the level of any selected faders - including the Gain fader. It may also be used to set the attenuation of the Notch filters and the frequency of the Low pass filter. BUTTONS 1-4: These “soft keys” are used to select and operate the various functions of the equaliser. The functions immediately available depend on the current operating mode of the unit. The current function attached to each key is shown on the LCD display beside it. CURVE/FADER: This button is used to switch between the virtual fader display and a composite frequency response curve, calculated from the positions and shapes of all Graphic, High pass, Low pass and Notch filters and gain control. The curve changes in real time with any adjustments made. 10 GAIN: This button selects the Gain fader for adjustment. The Gain fader is highlighted and can be adjusted in 0.5dB steps from +6 to -18dB. One step below the -18dB point mutes the selected channel. To deselect the Gain fader press GAIN a second time. The Gain control on the DN3600 scales the actual frequency bands. This achieves optimization of signal to noise ratio from one simple control and avoids the disadvantages of conventional pre EQ or post EQ gain controls. NUMERIC WINDOW: Displays the number of the currently operating Memory and, in the appropriate operating modes, the Slave address number or the MIDI channel number. A flashing number indicates access by a remote control device, such as another DN3600. METERS: Separate 10-segment bargraph level meters monitor the signal level in channels A and B over the range -12dB to +15dB. The Clip warning LED monitors seven different points within the circuitry of the DN3600 and flashes if the level at any point comes within 2dB of clipping. POWER SWITCH: Switches the unit on and off. When the unit is off, there is a hard relay bypass which connects the input signal directly to the output. Rear Panel Functions Balanced Input XLR Sockets Balanced Output XLR Sockets Pro MIDI XLR Connectors: These follow the same wiring convention as conventional MIDI DIN sockets. These are used for performing system exclusive data transfer and for linking multiple units in a master/slave configuration. See service section for wiring convention. 16-Pin IDC Interface: Interfaces directly with the DN60/DN6000 Real Time Spectrum Analyser for automatic equalisation and may be used to interface with future products. IEC Mains Socket with integral fuse. 11 GETTING STARTED WITH THE DN3600 The operation of the virtual faders is much like that of a conventional graphic equaliser in that a fader is selected and then moved. Faders may be selected directly by pressing any one of the Frequency buttons or the bands may be scanned through using the FREQ rotary control. The selected fader is then adjusted by use of the LEVEL rotary control. More than one band may be selected by pressing and holding one of the Frequency keys until it flashes and then either pressing another Frequency key or rotating the FREQ control. A bank of faders can also be selected be pressing two keys at the same time or in quick succession. Moving the LEVEL control will now adjust all selected bands simultaneously. Exit from bank selection is by pressing a single frequency key. SELECTING CHANNELS: The user may adjust channels A and B independently or both together. Channels are selected by pressing the A : B : Link key. The Link mode may be selected by pressing and holding the A : B : Link key. In Link mode, any adjustments made to the fader positions affect both channels. If L