User manual SYMETRIX 528E VOICE PROCESSOR

[. . . ] 528E Voice Processor 528E User's Guide Table of Contents Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Introduction Operator Safety Summary Fast Setup Front Panel Overview Rear Panel Overview Voice Processing Tutorial Using the 528E Applications Technical Tutorial Troubleshooting Specifications Warranty & Service 1 2 3 4 8 10 20 28 32 36 37 39 41 42 528E Appendix A Disassembly Instructions and Output Level Switch Appendix B Declaration of Conformity © April 2000-01 Symetrix, Inc. Symetrix Part Number 53528-0F00 The information in this guide is subject to change without notice. shall not be liable for technical or editorial errors or omissions contained herein; nor is it liable for incidental or consequential damages resulting from the furnishing, performance, or use of this material. Mention of third-party products is for informational purposes only and constitutes neither an endorsement nor a recommendation. [. . . ] The CLIP LED in the OUTPUT LED meter monitors levels in the equalizer as well as at the output of the 528E. If the CLIP LED glows, try switching the equalizer to BYPASS. If the LED still glows, reduce the setting of the OUTPUT GAIN control. If switching the equalizer to BYPASS eliminates the clip indication, then the input level must be reduced via the MIC GAIN control or by lowering the level of the line input. 20 MIC GAIN IN/OUT CLIP DE-ESS IN/OUT FREQUENCY THRESHOLD +48V/BYPASS PRESS PHANTOM POWER SUPPLY DE-ESS -15dB PAD PREAMP PRESS MIC LINE EXP THRES GAIN COMP THRES COMP RATIO EXP/COMP IN/OUT EXP/COMP OUTPUT EQ INPUT Figure 7-1. 528E Block Diagram DOWNWARD EXPANDER COMPRESSOR EXPANDER/COMPRESSOR EXTERNAL SIDECHAIN (RING=SEND. TIP=RETURN) FREQUENCY BANDWIDTH CUT/BOOST FREQUENCY BANDWIDTH CUT/BOOST FREQUENCY BANDWIDTH CUT/BOOST EQ OUTPUT OUTPUT STAGE INPUT EQ LOW EQ MID EQ HIGH EQ IN/OUT EQ CLIP DETECTION OPTIONAL POWER SWITCH OUTPUT LEVEL DISPLAY VOICE SYMMETRY IN/OUT INTERNAL OUTPUT LEVEL SELECT SWITCH OUTPUT BALANCED POWER SUPPLY OUTPUT STAGE WITH SYMMETR Y CORRECTION CIRCUIT OUTPUT THUMP MUTE CIRCUIT OUTPUT LEVEL SELECTION CIRCUIT OUTPUT UNBALANCED REV-F 21 528E Operational Details This section describes the details of operating the 528E. Usage information can be found later in this chapter. The 528E accepts monaural analog input signals at mic or line level, processes them, and delivers them back to you as balanced line, unbalanced line or balanced mic level signals. Stand-alone Operation A vast majority of users use the 528E as a stand-alone device. Here the 528E replaces their usual microphone preamp and either feeds their tape machine or workstation directly, in essence becoming a one-input, one-output console. Figure 7-2 illustrates the connections needed. BALANCE D OUT PUT LINE INPUT PRE S S MIC INPUT PRE S S OUT PUT S T AGE UNBALANCE D OUT PUT INPUT E QUALIZE R OUT PUT INPUT E XPANDE R /COMPR E S S OR OUT PUT S IDE CHAIN DE -E S S OUT PUT INPUT PR E -AMP S T AGE OUT PUT PHANTOM POWER INPUT T IP=RE T URN RING=S E ND +48V BYPAS S F R ONT PANE L INPUT S E LE CT S WIT CH IN `MIC' POS IT ION 528E Figure 7-2. Hookup for stand-alone operation BALANCE D OUT PUT LINE INPUT PRE S S MIC INPUT PRE S S OUT PUT S T AGE UNBALANCE D OUT PUT INPUT E QUALIZE R OUT PUT INPUT E XPANDE R /COMPR E S S OR OUT PUT S IDE CHAIN DE -E S S OUT PUT INPUT PR E -AMP S T AGE OUT PUT PHANTOM POWER INPUT T IP=RE T URN RING=S E ND +48V BYPAS S F R ONT PANE L INPUT S E LE CT S WIT CH IN `LINE ' (OUT ) POS IT ION T O CHANNE L PAT CH R E T UR N INPUT F R OM CHANNE L PAT CH S E ND OUT PUT Figure 7-3. Using the 528E as a channel insert device 22 For best results, the 528E should replace the mic preamp in your console or recording chain. If you have to plug the 528E into a microphone input (-40 dBu nominal level), then you'll need to pad (attenuate) the output of the 528E down to microphone level. An internal jumper connection reduces the 528E's output to this level. Although a far preferable connection would be to bypass your console's mic preamp, this will work. When configured for mic-level output, the 528E's circuitry doesn't care if phantom powering is or isn't present at the console's mic input. Appendix A contains instructions for altering the output level of the 528E. Note: Padding (attenuating) the output of the 528E back to microphone level is a workable solution towards interfacing the 528E into a console or system having only microphone level inputs. However workable, the ultimate performance of the 528E will be limited by the performance of your system's existing microphone preamps. If you can find a way to bypass the existing microphone preamps in your system, do so. Using the 528E as a Channel Insert Device The 528E can also be used as a channel-insert device with your console. [. . . ] If there are charges for the repair costs, you will pay for the return freight. All charges will be COD unless you have made other arrangements (prepaid, Visa, or MasterCard). We will return the unit in Symetrix packaging. 528E Out-of-Warranty Repairs If the warranty period has passed, you'll be billed for all necessary parts, labor, packaging materials, and freight charges. To Get Your 528E Unit Repaired (USA Customers Only) 1 Call our Technical Services Group for a return authorization (RA) number. (425) 787-3222, Monday through Friday, 8:00 am to 4:30 pm Pacific Time. Have your serial number ready to give to the service representative. [. . . ]