ADA-Digitizer-4-manual 电路图.pdf

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1、 Digitizer 4 (32 program digital delay) OWNERS MANUAL Originally written by ADA SIGNAL PROCESSORS, INC. Scanned and edited by Jur at 24 May 2003. Original ADA logo edited and rendered by Barend Onneweer of Raamw3rk.) The version of this manual is copyrighted and may not be sold or placed on a websit

2、e without permission of the editor. Release No.1 for RadioFans.CN 收音机爱 好者资料库 ADA Digitizer 4 owners manual CONTENTS 1.0 Introduction 1.1 Features 1.2 Precautions 2.0 Control Functions 2.1 Rear Panel 3.0 Initial Set-Up 3.1 Power-Up Sequence 3.2 Input/Output Adjustment 3.3 Accessing Programs 3.4 Editi

3、ng And Storing Programs - Examine Program Parameters - Edit And Store A Program - Working Through An Editing Example 3.5 Copying Shadow Programs - Copy An Individual Shadow Program - Copy All 16 Shadow Programs 3.6 How Are Program Memories Organized? 4.0 Delay Time 4.1 Dry Level Delay Level 4.2 Rege

4、n Level 4.3 Sweep Depth Sweep Rater 4.4 Phase 4.5 Repeat Hold 4.6 Remote Functions 5.0 Self-Check Diagnosis 5.1 Battery 5.2 Input/Output Cabling 6.0 Patch Settings 7.0 Specifications 8.0 Blank Patch Forms Page: 2 of 12 RadioFans.CN 收音机爱 好者资料库 ADA Digitizer 4 owners manual 1.0 INTRODUCTION Thank you

5、for purchasing the ADA DIGITIZER 4 PROGRAMMABLE DIGITAL DELAY. The DIGITIZER 4 is the first programmable digital delay that provides 32 effect memories, complete programmability of all parameters, instant access to any program, and an optional foot controller for the ultimate on-stage control. To pr

6、operly set-up and familiarize yourself with your new DIGITIZER 4, read and follow these operating instructions completely. Also, please take this time to fill in and return your enclosed warranty card. 1.1 FEATURES ? 16 programs: four Memory Banks of four Programs. ? 16 factory preset Shadow program

7、s may be recalled at any time. ? On-board computer allows programming of all effect parameters. ? Random Access footswitch allows instant access to any program. ? 1024ms of delay at 16kHz bandwidth. ? LED READOUT displays delay time or parameter value. ? Self-diagnostic program checks unit during po

8、wer up. ? 256K of internal delay memory. V LED DELAY and SWEEP Rate Indicators for real- time indication of the delay period and sweep speed. ? Instantaneous logic-controlled FET switching. ? Simple programming sequence. ? Stereo outputs. ? 90dB dynamic range. ? One year parts and labor warranty. 1.

9、2 PRECAUTIONS WARNING: To prevent fire or shock hazard, do not expose this appliance to rain or moisture. CAUTION. To prevent electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to qualified service personnel. 2.0 CONTROL FUNCTIONS INPUT LEVEL Boosts or attenuates

10、the input signal. OUTPUT LEVEL Adjusts the EFFECT OUTPUT signal level up to +20dBM. HEADROOM A 4-step LED meter with a 30dB range which displays signal level relative to clipping level. BYPASS Engages or bypasses the delay line. LED indicates effect is bypassed. PHASE INVERT Inverts the phase of the

11、 delayed signal. LED indicates delay phase is inverted (-180). REPEAT HOLD Engages the infinite repeat function (also remotely controllable). LED indicates REPEAT HOLD is engaged. DELAY (LED) An LED indicator that blinks at the rate of the delay time interval. SWEEP (LED) An LED indicator that blink

12、s at the rate of the LFO sweep. LED READOUT Displays delay time when a program is selected. Displays the value of a selected parameter when in EDIT mode. Decrements or increments (increases or decreases) the value of the selected parameter when in EDIT mode. Page: 3 of 12 ADA Digitizer 4 owners manu

13、al DUAL FUNCTION SWITCHES: IN PLAY MODE MEMORY BANK Four switches A, B, C, D, allows Memory Bank selection. Each Memory Bank has four programs within it. The LEDs indicate bank selected. PROGRAM Four switches 1,2,3,4, allows program selection. The LEDs indicate program selected. IN EDIT MODE DELAY T

14、IME Allows continuous adjustment of the delay time in 1ms steps from 1 to 1024ms. DRY LEVEL Determines the percentage of dry signal present at the output. Display reads from 0 to 100(%). DELAY LEVEL Determines the percentage of delay signal at the output. Display reads from 0 to 100(%). REGEN LEVEL

15、Controls the amount of the delayed signal fed back to the input. Display reads from 0 to100(%). SWEEP DEPTH Determines the range of delay time swept by the low frequency oscillator (LFO). Display reads from 0 to 100(%). SWEEP RATE Sets the speed of the low frequency oscillator that sweeps the delay

16、time. Sweep speed varies from 0.1 sec to 10 sec per cycle. Display reads from 0.1 to 10.0 (Hertz). EDIT The master switch that takes the DIGITIZER 4 out of the play mode into the edit mode. Display shows value of selected parameter. The buttons decrease/increase the displayed parameter value. LED in

17、dicates EDIT mode is engaged. STORE This saves any current program or edited current program in any register. LED indicates STORE mode is engaged. 2.1 REAR PANEL FUSE Externally accessible 0.5AMP fuse. Replace with equivalent type and rating only. POWER SWITCH ON/OFF rocker switch (located near powe

18、r supply to prevent the leakage of AC line hum into the audio circuitry). REMOTE FS-2 Provides remote access to the BYPASS and REPEAT HOLD function. Used with the optional FS-2 DUAL FOOTSWITCH. REMOTE DS-4 Provides remote access to the BYPASS and PROGRAM selection modes. Used with the optional DS-4

19、PROGRAM SELECTOR. OUTPUT B (INVERT MIX) A 600 ohm, unbalanced output. The level is set with the OUTPUT LEVEL control and carries the mix of dry and inverted delayed signals. OUTPUT A A 600 ohm, unbalanced output. The level is set with the OUTPUT LEVEL control and carries the mix of dry and delayed s

20、ignals. INPUT An unbalanced high impedance input which interfaces with low or high impedance sources and low and high signal levels. Page: 4 of 12 ADA Digitizer 4 owners manual 3.0 INITIAL SET-UP The ADA DIGITIZER 4 interfaces with a wide variety of input sources including high level microphones, el

21、ectronic instruments, and mixing consoles. The input circuitry is high impedance which functions properly with both low or high impedance sources and low (-30dBV) and high (+24dBV) signal levels. (1) To prepare your DIGITIZER 4 for use, set the rear panel POWER SWITCH to the OFF position. Also, set

22、your amplifiers power switch to the OFF position. (2) Connect your DIGITIZER 4s AC POWER CORD to a grounded outlet. (3) Set the INPUT and OUTPUT LEVEL controls on the DIGITIZER 4 to their minimum, counterclockwise position (0). (4) Connect your signal source to the INPUT JACK located on the rear pan

23、el. (5) Connect the OUTPUT A on your DIGITIZER 4 to your amplifier input or mixing console effects receive input. OUTPUT B is used with a second amplifier or effects receive input for stereo effects. (6) If you own the optional footswitch(es), connect the REMOTE DS-4 jack to the DS-4 PROGRAM SELECTO

24、R with the 1/4 STEREO CORD and connect the REMOTE FS-2 jack to the FS-2 DUAL FOOTSWITCH with the 1/4 STEREO CORD. 3.1 POWER UP SEQUENCE (1) Select the ON position of the rear panel POWER SWITCH of the DIGITIZER 4, then set your amplifiers power switch to the ON position. (2) The DIGITIZER 4 will now

25、 step through its SELF-DIAGNOSTIC program, checking a variety of functions for proper operation. If no problem exists, the DIAGNOSTIC operation is completed within eight seconds. Your DIGITIZER 4 is now ready for operation. (If a problem does occur, reference section 5.0 SELF-CHECK DIAGNOSIS for exp

26、lanation of error codes.) 3.2 INPUT/OUTPUT ADJUSTMENT (1) To properly set the input level: find the strongest signal or note that you will put into the DIGITIZER 4, and set the INPUT LEVEL control to just barely light the red 0dB HEADROOM LED. The LED should flicker only on the strongest signals or

27、notes. Never set the INPUT LEVEL control so the 0dB LED is constantly ON. Note that the HEADROOM LED meter monitors all signals entering the delay line. The REGEN LEVEL control may effect the headroom and therefore the readings. While performing, remember to monitor the HEADROOM LEDs for possible ov

28、erloads. (2) The OUTPUT LEVEL control sets the level of OUTPUTS A and B whether in BYPASS or effect IN modes. In general, guitar level signals will require a mid-scale or higher setting, line level signals will generally require positioning the control more counter-clockwise. Remember, proper settin

29、g of the INPUT/OUTPUT LEVEL controls is necessary to achieve maximum performance with the least amount of noise and distortion. 3.3 ACCESSING PROGRAMS The DIGITIZER 4 is shipped from the factory with 16 Shadow Programs loaded into the Program Storage Registers. As you create your own programs, you e

30、rase the Shadow Programs in the Program Storage Registers. However, you can always recall the original factory Shadow Programs at any time, so feel free to experiment. Programs can be changed in either BYPASS or EFFECT mode. To change to a program within the same bank as the current program, simply

31、press the desired program number button. A single keystroke is required when changing programs only. Page: 5 of 12 ADA Digitizer 4 owners manual To change to a program in another memory bank, press a memory bank location followed by a program number. Before proceeding, reference section 3.5 COPYING

32、SHADOW PROGRAMS to load Shadow Programs. PROGRAM SELECTION PROCESS (1) Assuming unit is in BYPASS mode with EDIT and STORE LEDS off, select the BYPASS switch and the effect is IN. (2) To change to a chorus effect in your MEMORY BANK, select PROGRAM 2 (this changes to another program in the same memo

33、ry bank). (3) To change to another variation of a chorus effect, select another MEMORY BANK location and PROGRAM 2 (remember that when changing the MEMORY BANK, it is necessary to enter a MEMORY BANK location and a PROGRAM number). (4) After listening to the various shadow programs, you can turn the

34、 unit OFF”, or you can proceed and edit a program following the steps outlined in section 3.5. 3.4 EDITING AND STORING PROGRAMS The EDIT function is used to look at specific parameter settings and to create a program. The STORE function is used to take the program in the Working Register and store i

35、t in a specific Program Storage Register. To save your own programs, you must use the STORE function. If you do not STORE a program that you have edited, it will be erased. TO EXAMINE PROGRAM PARAMETERS (1) Select program A4. (2) Press the EDIT button. (3) Choose the DELAY TIME parameter. The value

36、1000 is displayed on the LED READOUT. Next, choose DELAY LEVEL, its value is 90. Continue this process until you have examined all EDIT parameters (all switches surrounded by gray screening). An LED on the parameter switch blinks when the parameter has been selected for modification. Note: when in t

37、he EDIT mode, the DS-4 FOOTSWITCH is disabled. (4) Select the EDIT button when through examining the parameter values. You will now be brought back to program A4 in effect mode. TO EDIT AND STORE A PROGRAM (1) Press the EDIT button (2) Choose a parameter such as DELAY TIME and decrease or increase i

38、ts value with the buttons. (3) Proceed to the next parameter following the same procedure as 2 above. (4) After all changes are complete, press the red STORE button. (5) Select the MEMORY BANK and PROGRAM number you want the effect assigned to. The effect is now stored in the assigned location. WORK

39、ING THROUGH AN EDITING EXAMPLE Lets work through an example of using the EDIT function to create a chorus effect from shadow program C3 (Doubler-Detune). (1) Select memory location C3 while in the effect mode (i.e., EDIT and STORE LEDs OFF). (2) Press the EDIT button. Page: 6 of 12 ADA Digitizer 4 o

40、wners manual (3) Select DELAY TIME. Using the button, change the delay time to 20(ms) from 160(ms). (4) Select SWEEP DEPTH. Using the button, change the sweep depth to 60(%) from 50(%). (5) Select SWEEP RATE. Using the button, change the sweep rate to 3(sec) from 1 (sec) (6) Select REGEN LEVEL. Usin

41、g the button, change the regen level to 0(%) from 20(%). (7) Select DRY LEVEL. Using the button, change the dry level to 60(%) from 80(%). (8) Keep DELAY LEVEL at 60(%). We have now adjusted all parameters as required and need to store the new program to a memory location. (9) Select the red STORE b

42、utton. (10) Lastly, store the new chorus effect in memory location MEMORY BANK C, PROGRAM 3. 3.5 COPYING SHADOW PROGRAMS The 16 shadow programs are permanently stored in PROM. You can transfer any individual shadow program into any memory location or you can move all 16 programs at once. TO COPY AN

43、INDIVIDUAL SHADOW PROGRAM (1) Press EDIT button followed by MEMORY BANK A button. This calls up the shadow programs. (2) Select any of the 16 shadow programs to use or modify. For example, selecting C3 calls up a copy of the original Doubler-Detune into the working register. (3) To store shadow C3 o

44、nto an effect memory location, select STORE followed by the desired memory bank and program number. (4) To modify the copy of shadow C3, perform the steps outlined in 3.4 EDITING OR STORING PROGRAMS. TO COPY ALL 16 SHADOW PROGRAMS (1) Press EDIT, MEMORY BANK B, then the REPEAT HOLD button . This cop

45、ies all 16 Shadow Programs into the main Program Storage Registers at one time. Important: by transferring all 16 Shadow Programs, any programs you have created will be erased. 3.6 HOW ARE PROGRAM MEMORIES ORGANIZED? The program memories of the DIGITIZER 4 are organized as follows: 16 Program Storag

46、e Registers, 16 Shadow Program Storage Registers, and one Working Register. Each of the 32 Program Registers can be accessed and moved into the holding area called the Working Register. The Working Register holds . the program you are listening to and allows examination or editing of the programs pa

47、rameters. You can save or STORE a program you have created by copying it to one of the 16 Program Storage Registers for later recall. You cannot STORE programs to the 16 Shadow Program Registers as they hold permanent, factory pre-set programs. The DIGITIZER 4s microprocessor remembers the last prog

48、ram used. When powered up, it will place that program into the Working Register in the BYPASS mode. Page: 7 of 12 ADA Digitizer 4 owners manual 4.0 DELAY TIME By using the DELAY TIME button in conjunction with the buttons, the delay time is variable from 1 ms to 1024ms. 4.1 DRY LEVEL AND DELAY LEVEL

49、 The DRY LEVEL and DELAY LEVEL buttons control the mix of dry and delayed signal at the outputs. As the amount of DRY LEVEL is increased, the amplitude of the dry signal is increased. Similarly, as the DELAY LEVEL is increased, the amplitude of the processed signal is increased. Proper setting of the delay and dry sign