D26 Owner's Manual Rev2 电路图.pdf

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1、 S O U N D S C I E N C E Model D26 Digital System Controller Owners Manual Rev. 2 RadioFans.CN 收音机爱 好者资料库 This equipment has been tested and found to comply with the following European and international Standards for Electromagnetic Compatibility and Electrical Safety: Radiated Emissions (EU): EN550

2、13 (1990) Associated Equipment RF Immunity (EU): EN50082/1 (1992) RF Immunity, Fast Transients ESD Mains Disturbance (EU): EN61000/3/2 (1995) Electrical Safety (EU): EN60065 (1993) Radiated Emissions (USA): FCC part 15 Class B Electrical Safety (USA): UL813/ETL (1996) Commercial Audio Equipment Elec

3、trical Safety (CAN): UL813/ETLc (1996) Commercial Audio Equipment IMPORTANT SAFETY INFORMATION DO NOT REMOVE COVERS. NO USER SERVICEABLE PARTS INSIDE, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. THIS EQUIPMENT MUST BE EARTHED. IT SHOULD NOT BE NECESSARY TO REMOVE ANY PROTECTIVE EARTH OR SIGNAL C

4、ABLE SHIELD CONNECTIONS TO PREVENT GROUND LOOPS. ANY SUCH DISCONNECTIONS ARE OUTSIDE THE RECOMMENDED PRACTISE OF CUSTOMER NAME AND WILL RENDER ANY EMC OR SAFETY CERTIFICATION VOID. For continued compliance with international EMC legislation ensure that all input and output cables are wired with the

5、cable screen connected to Pin 1 of the XLR connectors. The input XLR Pin 1 is connected to the chassis via a low value capacitor, providing high immunity from ground loops whilst ensuring good EMC performance. RadioFans.CN 收音机爱 好者资料库 Contents Quick Start - Reference Other features Voltage setting AC

6、 Power fusing Mechanical Installation Mains Power Connection Controls Input section Output section Rear panel Moving about the screens Default Screen Inputs Menu Outputs Menu EQ Screens Store and Recall System Security Specifications Quick Start - Reference AC Power connection The D26 has a universa

7、l voltage AC Power input. Connect the D26 to AC Power with the lead supplied. The unit will switch on automatically (there is no separate on/off switch). The display will show the default screen, with the current program (if selected), and overall system response curves. Audio connections Connect th

8、e inputs and outputs as desired. All inputs and outputs are electronically balanced, with Pin 2 hot signal (+ve). Do not put any audio through the unit at this time. Program settings If your D26 has been already configured with a program, you only need to use the RECALL mode to set the parameters to

9、 that program. Press RECALL. Use the Parameter UP/DOWN keys to select the designated program (which has a number and name) and press RECALL again. Programs marked with the letter M are Master OEM programs and have been designed to match specific sound systems. Some units will be locked to a specific

10、 program. In this case most controls will be disabled and the unit will be ready for use. Setting up a system To configure your D26, the mode of the unit should be decided upon before setting up. Once the Config is set (In the Utilities menu), the crossover points, individual band delays, any EQ, an

11、d limiter thresholds can be set up. To enter the Utilities menu, press the RIGHT key from the default screen. Configuring the D26 Band delays Use the RIGHT/LEFT keys until the delay screen appears. The delay is adjusted by the Parameter UP/DOWN keys. Default settings for display and adjustment of de

12、lay is in meters (m), but can be changed to milliseconds (ms), or feet/inches (ft). Bands can also be linked so multiple outputs can be delayed as one using the delay link facility. Adding EQ Use the RIGHT/LEFT keys to move to the EQ screen. The EQ shape can be edited first. The shape of the EQ can

13、be selected from one of the following by pushing the Parameter UP/DOWN keys: Hi-Shelf with 12dB slope (Hi12) Hi-Shelf with 6dB slope (Hi6) BELL Low-Shelf with 6dB slope (Lo6) Low-Shelf with 12dB slope (Lo12). Pushing the RIGHT key from the EQ shape screen will access the following facilities, in thi

14、s order: Filter Frequency Cut/Boost Filter Bandwidth Setting the limiters There is one screen associated with the limiters of the D26, which allows you to set the limiter threshold. Push the Parameter UP/DOWN keys to change the threshold. The output meters are calibrated to this threshold, so the th

15、reshold will show as Set the 0dB point on the meter at all times, even if the limiters are off. Other features Crossover slopes of 6,12, 18, 24 or 48dB per octave, filter types Butterworth or Linkwitz-Riley, preset at the factory as appropriate. Output limiters on each band (mid-filter). High resolu

16、tion input and output delays up to 630 seconds in 22 microsecond steps. Input LED metering, showing signals from -20dB to clip level. Output LED metering, showing signals from -20dB to +6dB over limit threshold. Front panel mutes. Polarity reverse on each output. Electronically balanced inputs and o

17、utputs. MIDI and RS-232 ports on rear panel. Voltage setting The D26 uses a switched-mode power supply which offers high efficiency and low heat generation. This power supply accepts universal AC Power input voltages in the range 100V AC to 240V AC (nominal), and requires no setting adjustment for A

18、C power voltages in this range. Minimum AC input voltage is 90 Volts, and the maximum is 264 volts. Outside these ranges the unit will not work satisfactorily, if at all. Voltages in excess of the maximum will probably cause damage. Voltages below the minimum will cause complete system shutdown. The

19、 flash memory in the unit will preserve all data in the event of a power failure. AC Power fusing The Green-and-Yellow wire of the mains cord must always be connected to an installation Safety Earth or Ground. The Earth is essential for personal safety as well as the correct operation of the system,

20、 and is internally connected to all exposed metal surfaces. Any rack framework into which this unit may be mounted is assumed to be connected to the same grounding circuit. The incoming mains power is fused within the D26 by the fuse holder mounted on the rear panel. Always replace with an identical

21、 20mm x 5mm T fuse, rated at 1A for continued protection from equipment damage and fire. It is most important for continued safety that this specification is strictly adhered to. Mechanical Installation A vertical rack space of 1U (1 / 44.5 mm high) is required. Ventilation gaps are unnecessary. If

22、the D26 is likely to undergo extreme vibration through extensive road trucking and touring, it is advisable to support the unit at the rear and/or sides to lessen the stress on the front mounting flange. The necessary support can generally be bought ready-built as a rack tray. As with any low-level

23、signal processing electronics, it is best to avoid mounting the unit next to a strong source of magnetic radiation, for example, a high power amplifier, to help keep residual noise levels in the system to a minimum. Mains Power Connection Mains power WARNING! THIS APPLIANCE MUST BE EARTHED. IMPORTAN

24、T: The wires in the mains lead are colour coded in accordance with the following code. ? The wire which is coloured Green and Yellow or Green must be connected to the terminal which is marked with the letter E or by the Earth signal or which is coloured Green and Yellow or Green. ? The wire which is

25、 coloured Blue must be connected to the terminal labelled N or coloured Black or Blue. ? The wire which is coloured Brown must be connected to the terminal labelled L or coloured Red or Brown. Controls Input section Store/Recall keys Program data can be stored to internal memory, and is done by usin

26、g the store facility. The STORE key also doubles as an ENTER key for confirmation of some actions. Program data is recalled to the unit from internal memory using the recall facility. RIGHT/LEFT Keys Controller keys for editing parameters displayed by the LCD screen. RIGHT/LEFT/UP/DOWN Access Keys C

27、ontroller keys for selecting a parameter to edit. Main Display The main LCD screen displays current parameters being edited. Input meter Input signal level referenced to the clip level. Actual signal clipping will occur slightly above the clip indicator. Output section Mute LED Shows the mute status

28、 of the output band. Mute key Pressing a mute key will toggle the associated band output on and off. The mute LED is illuminated when the output is MUTED. Mute status is saved when a program is stored. Output meter Shows the output on each channel relative to the limiter threshold. Rear panel Mains

29、power input The Power inlet for the D26. Note that there is no On/Off switch for the unit. RS-232 connector For connection to a PC for access to one or more D26s on a MIDI loop, which provides an easy way to upload new software. 6 Band outputs The D26 audio outputs are electronically balanced and fl

30、oating. Transformer balancing is available as a retrofit option. Pin 1 Shield/Ground Pin 2 Signal Hot (+) Pin 3 Signal Cold (-) 2 Channel inputs The D26 audio inputs are electronically balanced. Transformer balancing is available as a retrofit option. Pin 1 Open circuit Pin 2 Signal Hot (+) Pin 3 Si

31、gnal Cold (-) Moving about the screens Use the Parameter UP/DOWN keys to move between Default, Utility, Input and Output menus (Horizontal columns). Use the RIGHT and LEFT keys to move along each menu. Use the Parameter LEFT/RIGHT keys to select a parameter to adjust. Moving to a new menu may not br

32、ing up the first screen shown in each row, as the D26 remembers, and moves you to, the last screen accessed in each menu. Store and Recall are accessed by pressing their respective keys. After powering up, the D26 performs internal checks and sets up the audio path before releasing the output mute r

33、elays. This takes a few seconds. Default Screen When the D26 is powered up the Default Screen is shown. This shows the current program name and number. Utilities Menu Pushing the RIGHT key while viewing the default screen will move you into the Utilities menu. The RIGHT and LEFT keys are used to mov

34、e along the Utilities path, and the Parameter UP/DOWN keys are used to change the selected parameter. Stereo link This mode selects whether parameters will be adjusted together, or independently on each channel. The stereo link pairs in 2 channel 3 way are 1 & 2, 3 & 4 and 5 & 6. The stereo link pai

35、rs in 3 channel 2 way are 1 & 3, and 4 & 6. Pushing the Parameter UP/DOWN keys selects Stereo Link: ON and OFF. Configuration Delay units This selects the units used for displaying and adjusting delays. ms represents milliseconds, ft represents feet (and feet and inches for short delays), and m repr

36、esents metres. Lock out The Lock Out mode prevents access to editing functions on the input and output channels. Since this utility is not password-protected, Lock Out can still be accessed and turned off. This mode is intended only as a precaution against accidental adjustments, and not as a tamper

37、-proof security lock. MIDI channel Here, you can select the MIDI channel that the unit is assigned to (Channels 1 through 16 are available). Contrast This allows you to change the contrast of the LCD display. (Turn to) MIDI dump This mode allows you to dump the current program settings to another D2

38、6, or a MIDI storage device for backup. The default position for this screen is MIDI DUMP: NO. Use the Parameter UP/DOWN keys to select YES will ask you to press STORE to confirm the dump. A percentage complete figure will show how much data has been transferred. When the dump is complete, the scree

39、n defaults to NO. If you are using the MIDI Dump to transfer data to another D26, ensure that both devices are set to the same MIDI channel, and connect the MIDI OUT of the sending device to the MIDI IN of the receiving device. The MIDI Dump mode is totally independent of the MIDI MODE. (Turn to) De

40、lete program This facility allow any stored program to be removed from the unit. Use the Parameter UP/DOWN keys to select the desired program, and press STORE to confirm deletion. Programs marked with a letter M on a D26 cannot be deleted as they are manufacturer Master programs. Inputs Menu There a

41、re two inputs available for routing to outputs plus an internal mono sum of inputs A and B, referred to as A+B. This gives the Input Channels: A, B, and A+B. The facilities described in this section are common to all inputs, except EQ, which is not possible on the mono sum A+B signal. The first scre

42、en in the input menu is the DELAY SCREEN. Pressing the RIGHT key will access the EQ screens. Delay The delay on each input channel can be adjusted individually, in 22 microsecond steps. Pushing the Parameter UP/DOWN keys will set the amount of delay required on the input. This delay is typically use

43、d to set the delay for delay towers etc., or to stagger the delays between the left and right channels to move sound lobes in an installation. Delays can be viewed and adjusted in metres (default), feet/inches, or milliseconds. Note: The maximum delay value is restricted by any delay on an output wh

44、ich the current input feeds. Input delay and output delay for any signal path is limited to 630ms. EQ To add EQ to an input, step through the functions on the desired channel using the RIGHT/LEFT keys until you reach the screen that shows the EQ parameter you wish to edit. (See EQ screens for more d

45、etails). Outputs Menu To select any of the output bands, press the UP/DOWN keys until the output is shown on the screen. Name The first screen in the Output menu is the Name function. Here you can identify each output with a name suitable to its function, selecting from a list of names in the D26, s

46、uch as SUB, or 2” HORN. Use the Parameter UP/DOWN keys to select the desired name. If the name selected while stereo is NOT linked begins with L or R, then the L or R will not be displayed when stereo linking is on. Source To change the source input, use the Parameter UP/DOWN keys until the desired

47、input source is selected. Band gain Adjusts the output gain from -25dB to +4dB using the Parameter UP/DOWN keys. Limiter threshold The band limiter threshold can be adjusted by pushing the Parameter UP/DOWN keys to set the desired value to match the sensitivity of the amplifier in use. The default u

48、nits are dBu, but can be changed to mV. CUSTOMER NAME recommends setting the limiter thresholds below the amplifier clipping sensitivity by about 2dB. This prevents any transient overshoot driving the amplifier into clip and so damaging your loudspeakers. Threshold setting also determines the output

49、 meter sensitivity. Delay The output delays are most often used to electronically align the driver voice coils with the other drivers in the system, so the sound sources are coherent to the listener. Each increment is only 22 microseconds, which translates in physical terms to a distance of 6.8mm Delay link The Delay Link option allows you to control several band delays with a single adjustment. This means that once all the driv