Equipment information

Orban 2300J Effect Processor
Manufacturer:
Orban
Model: 2300J
Date: 2007
Category: Professional music equipment
Group: Effect Processor
Description: Digital Audio Processor
Information:

Orban’s all-digital OPTIMOD-FM 2300 Audio Processor can help you achieve excellent audio quality in FM stereo broadcasting. Because all processing is performed by high-speed mathematical calculations within Motorola DSP56362 Digital Signal Processing chips, the processing has cleanliness, quality, and stability over time and temperature that is unmatched by analog processors. Starting with V2.0 software, the 2300 can be used as an extremely high-quality stand-alone stereo encoder operating at 64 kHz to 512 kHz sample rates and offering lowpass filtering, overshoot limiting, composite limiting, and an ITU412 multiplex power Controller. When used in this mode, the 2300 must be driven (usually via an STL) by a fullfeatured FM audio processor (like Orban’s 8500) that incorporates preemphasis-aware HF limiting and peak control. OPTIMOD-FM 2300 is descended from the industry-standard OPTIMOD-FM audio processors. Thousands of these processors are on the air all over the world. They have proven that the “OPTIMOD sound” attracts and keeps an audience even in the most competitive commercial environment. Because OPTIMOD-FM incorporates several audio processing innovations exclusive to Orban products, you should not assume that it can be operated in the same way as less sophisticated processors. If you do, you may get disappointing results. Take a little time now to familiarize yourself with OPTIMOD-FM. A small investment of your time now will yield large dividends in audio quality. The rest of Section 1 explains how OPTIMOD-FM fits into the FM broadcast facility. Section 2 explains how to install it and set it up. Section 3 tells how to operate OPTIMOD-FM. Sections 4 through 6 provide reference information. OPTIMOD-FM was designed to deliver a high quality sound while simultaneously increasing the average modulation of the channel substantially beyond that achievable by “recording studio”-style compressors and limiters. Because such processing can exaggerate flaws in the source material, it is very important that the source audio be as clean as possible. For best results, feed OPTIMOD-FM unprocessed audio. No other audio process- ing is necessary or desirable. If you wish to place level protection prior to your studio/transmitter link (STL), use an Orban studio level control system expressly designed for this purpose. (At the time of this writing, this is the Orban 8200ST OPTIMOD-Studio Compressor / Limiter / HF Limiter / Clipper.) The 8200ST can be adjusted so that it substitutes for the broadband AGC circuitry in OPTIMOD-FM, which is then defeated.

These manuals are available for the above equipment:

Manual Type: Service and User Manual Orban-9715-Manual-Page-1-Picture
Pages: 258
Size: 4.47 Mbytes (4682374 Bytes)
Language: english
Revision:
Manual-ID/Number: 96122.202.01
Date: 01 September 2007
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: a8d04c5887cb74833638a89b9afc7104
Downloads: 233 since 22 October 2017
Information:

Section 1 Introduction ... 1-1 ABOUT THIS MANUAL ... 1-1 THE OPTIMOD-FM 2300 DIGITAL AUDIO PROCESSOR ... 1-1 User-Friendly Interface ... 1-2 Absolute Control of Peak Modulation ... 1-2 Flexible Configuration ... 1-3 Controllable ... 1-4 Stand-Alone Stereo Encoder Operation ... 1-5 PRESETS IN OPTIMOD-FM ... 1-6 Factory Presets ... 1-6 User Presets ... 1-6 I NPUT/OUTPUT CONFIGURATION ... 1-7 Digital AES3 Left/Right Input/Output ... 1-7 Analog Left/Right Input/Output ... 1-8 Stereo Analog Baseband Composite Output ... 1-8 Subcarriers ... 1-8 Remote Control Interface ... 1-9 Computer Interface ... 1-10 RS-232 Serial Port ... 1-10 RJ45 Ethernet Connector ... 1-10 Optimal Control of Peak Modulation Levels ... 1-10 Best Location for OPTIMOD-FM ... 1-11 If the Transmitter is not accessible: ... 1-12 If the Transmitter is accessible: ... 1-12 STUDIO-TRANSMITTER LINK ... 1-14 Transmission from Studio to Transmitter ... 1-14 Digital Links ... 1-14 Composite Baseband Microwave STLs ... 1-15 Dual Microwave STLs ... 1-16 Analog Landline (PTT / Post Office Line) ... 1-17 Using the Orban 8100AST (or 8100A/ST) External AGC with the 2300 ... 1-17 STL and Exciter Overshoot ... 1-17 USING LOSSY DATA REDUCTION IN THE STUDIO ... 1-18 ABOUT TRANSMISSION LEVELS AND METERING ... 1-18 Meters ... 1-18 Studio Line-up Levels and Headroom ... 1-19 Fig. 1-1: Absolute Peak Level, VU and PPM Reading ... 1-19 Transmission Levels ... 1-19 LINE-UP FACILITIES ... 1-20 Metering of Levels ... 1-20 Composite Output Level ... 1-20 Built-in Calibrated Line-up Tones ... 1-20 Built-in Calibrated Bypass Test Mode ... 1-21 MONITORING ON LOUDSPEAKERS AND HEADPHONES ... 1-21 EAS TEST ... 1-22 PC CONTROL AND SECURITY P ASSCODE ... 1-2 WARRANTY , USER FEEDBACK ... 1-23 User Feedback ... 1-23 LIMITED WARRANTY ... 1-23 INTERNATIONAL WARRANTY ... 1-24 EXTENDED WARRANTY ... 1-24 Section 2 Installation ... 2-1 INSTALLING THE 2300 ... 2-1 Figure 2-1: AC Line Cord Wire Standard) ... 2-2 Figure 2-2: Wiring the 25-pin Remote Interface Connector ... 2-4 2300 REAR PANEL ... 2-5 INPUT AND OUTPUT CONNECTIONS ... 2-6 Cable ... 2-6 Connectors ... 2-6 Analog Audio Input ... 2-6 Analog Audio Output ... 2-7 AES3 Digital Input and Output ... 2-7 Composite Output and Subcarrier Input ... 2-8 Figure 2-3: Separation vs. load capacitance ... 2-9 Grounding ... 2-10 Power Ground ... 2-11 Circuit Ground ... 2-11 2300 FRONT PANEL ... 2-11 STUDIO LEVEL Controller INSTALLATION (OPTIONAL) ... 2-13 If you are using Orban 8200ST external AGC ... 2-14 Figure 2-4: 8200ST Jumper Settings (*Factory Configuration) ... 2-15 QUICK SETUP (AUDIO PROCESSOR MODE) ... 2-16 Setup for Stand-Alone Stereo Encoder Mode ... 2-24 ANALOG AND DIGITAL I/O SETUP ... 2-29 AUTOMATION USING THE 2300’S INTERNAL CLOCK ... 2-35 SECURITY AND PASSCODE PROGRAMMING ... 2-37 To Create a Passcode: ... 2-38 To Edit a Passcode: ... 2-39 To Delete a Passcode: ... 2-39 To Lock the Front Panel Immediately: ... 2-39 To Program local lockout: ... 2-39 To Unlock the Front Panel: ... 2-40 Dial-up Networking and the Passcode ... 2-40 If You Have Forgotten Your Passcode ... 2-40 REMOTE CONTROL INTERFACE PROGRAMMING ... 2-41 NETWORKING AND REMOTE CONTROL ... 2-42 SYNCHRONIZING OPTIMOD TO A NETWORK TIME SERVER ... 2-44 Table 2-1: NIST-referenced timeservers ... 2-45 INSTALLING 2300 PC REMOTE CONTROL SOFTWARE ... 2-48 Installing the Necessary Windows Services ... 2-48 Check Hardware Requirements ... 2-48 Running the Orban Installer Program ... 2-49 Setting Up Ethernet, LAN, and VPN Connections ... 2-50 Conclusion ... 2-50 APPENDIX: SETTING UP SERIAL COMMUNICATIONS ... 2-51 Preparing for Communication through Null Modem Cable ... 2-51 Connecting Using Windows 2000 Direct Serial Connection: ... 2-51 Connecting Using Windows XP Direct Serial Connection ... 2-56 Preparing for Communication through Modems ... 2-61 Connecting Using Windows 2000 Modem Connection ... 2-61 Connecting using Windows XP Modem Connection ... 2-67 UPDATING YOUR 2300’S SOFTWARE ... 2-73 Section 3 Operation ... 3-1 2300 FRONT PANEL ... 3-1 I NTRODUCTION TO PROCESSING ... 3-3 Some Audio Processing Concepts ... 3-3 Distortion in Processing ... 3-3 Loudness and Distortion ... 3-4 OPTIMOD-FM—from Bach to Rock ... 3-4 Fundamental Requirements: High-Quality Source Material and Accurate Monitoring ... 3-5 ABOUT THE 2300’S SIGNAL PROCESSING FEATURES ... 3-6 Signal Flow ... 3-6 Stand-Alone Stereo Encoder Mode ... 3-9 ITU-R BS412 Compliance ... 3-10 Two-Band Purist Processing ... 3-10 CUSTOMIZING THE 2300’S SOUND ... 3-10 Basic Modify ... 3-11 Full Modify ... 3-11 Advanced Modify ... 3-12 Gain Reduction Metering ... 3-12 To Create or Save a User Preset ... 3-13 F ACTORY PROGRAMMING PRESETS ... 3-14 Table 3-1: Factory Programming Presets ... 3-15 THE 2300’S AUDIO PROCESSING CONTROLS DESCRIBED ... 3-16 Equalizer Controls ... 3-17 Table 3-2: Equalizer Controls ... 3-18 Stereo Enhancer Controls ... 3-20 Table 3-3: Stereo Enhancer Controls ... 3-20 AGC Controls ... 3-21 Table 3-4: AGC Controls ... 3-22 Advanced AGC Controls ... 3-24 Clipper Controls ... 3-26 Table 3-5: Clipper Controls ... 3-27 Two-Band Controls ... 3-30 Table 3-6: Two-Band Controls ... 3-30 Advanced Two-Band Controls ... 3-33 ITU-R MULTIPLEX POWER Controller ... 3-34 Figure 3-1: Multiplex Power over 15 Minute Observation Interval with MPX Power Controller Active, measured at Optimod’s Composite Output ... 3-34 Multiplex Power Threshold ... 3-34 Audio Processing and the Multiplex Power Threshold Control ... 3-35 Multiplex Power Control in Stand-Alone Stereo Encoder Mode ... 3-35 TEST MODES ... 3-36 Table 3-7: Test Modes ... 3-36 GETTING THE Bass SOUND YOU W ANT ... 3-36 USING THE 2300 PC REMOTE CONTROL SOFTWARE ... 3-38 To set up a new connection: ... 3-39 To initiate communication: ... 3-39 To modify a control setting: ... 3-40 To recall a preset: ... 3-40 To save a user preset you have created: ... 3-41 To back up User Presets, system files, and automation files onto your computer’s hard drive: ... 3-41 To restore archived presets, system files, and automation files: ... 3-42 To modify INPUT/OUTPUT and SYSTEM SETUP: ... 3-43 To modify AUTOMATION: ... 3-43 To group multiple 2300s: ... 3-43 Operation Using the Keyboard ... 3-44 To Quit the Program ... 3-44 About Aliases created by Optimod 2300 PC Remote Software ... 3-44 Multiple Installations of Optimod 2300 PC Remote ... 3-45 Section 4 Maintenance ... 4-1 ROUTINE MAINTENANCE ... 4-1 SUBASSEMBLY REMOVAL AND REPLACEMENT ... 4-2 FIELD AUDIT OF PERFORMANCE ... 4-6 Table 4-1: Decoder Chart for Power Supervisor ... 4-9 Table 4-2: Layout Diagram of J7, with expected voltages on each pin ... 4-9 Table 4-3: Typical Power Supply Voltages and AC Ripple ... 4-9 Section 5 Troubleshooting ... 5-1 PROBLEMS AND POTENTIAL SOLUTIONS ... 5-1 RFI, Hum, Clicks, or Buzzes ... 5-1 Unexpectedly Quiet On-Air Levels ... 5-1 Poor Peak Modulation Control ... 5-1 Audible Distortion On-Air ... 5-2 Audible Noise on Air ... 5-3 Whistle on Air, Perhaps Only in Stereo Reception ... 5-3 Interference from stereo into SCA ... 5-4 Fig. 5-1: Typical 2300 baseband spectrum with heavy processing, 0-100 kHz. ... 5-4 Shrill, Harsh Sound ... 5-5 Dull Sound ... 5-5 System Will Not Pass Line-Up Tones at 100% Modulation ... 5-5 System Will Not Pass Emergency Alert System (“EAS” USA Standard) Tones at the Legally Required Modulation Level ... 5-5 System Receiving 2300’s Digital Output Will Not Lock ... 5-6 19 kHz Frequency Out-of-Tolerance ... 5-6 L–R (Stereo Difference Channel) Will Not Null with Monophonic Input ... 5-6 General Dissatisfaction with Subjective Sound Quality ... 5-6 Security Passcode Lost (When Unit is Locked Out) ... 5-6 Connection Issues between the 2300 and a PC, Modem, or Network ... 5-6 Troubleshooting Connections ... 5-7 You Cannot Access the Internet After Making a Direct or Modem Connection to the 2300: ... 5-8 OS-SPECIFIC TROUBLESHOOTING A DVICE ... 5-8 Troubleshooting Windows 2000 Direct Connect: ... 5-8 Troubleshooting Windows 2000 Modem Connect: ... 5-10 Troubleshooting Windows XP Direct Connect: ... 5-11 Troubleshooting Windows XP Modem Connect: ... 5-12 TROUBLESHOOTING IC OPAMPS ... 5-13 TECHNICAL SUPPORT ... 5-13 F ACTORY SERVICE ... 5-13 SHIPPING INSTRUCTIONS ... 5-14 Section 6 Technical Data ... 6-1 SPECIFICATIONS ... 6-1 Performance ... 6-1 Installation ... 6-2 CIRCUIT DESCRIPTION ... 6-5 Overview ... 6-5 Control Circuits ... 6-6 User Control Interface and LCD Display Circuits ... 6-6 Input Circuits ... 6-8 Output Circuits ... 6-9 DSP Circuit ... 6-12 Power Supply ... 6-12 ABBREVIATIONS ... 6-13 PARTS LIST ... 6-14 Obtaining Spare Parts ... 6-15 Base Board ... 6-15 CPU Module ... 6-17 RS-232 Board ... 6-18 Power Supply ... 6-19 Input/Output (I/O) Board ... 6-20 DSP Board ... 6-23 Display Board ... 6-24 SCHEMATICS AND PARTS LOCATOR DRAWINGS ... 6-25

Orban-9715-Manual-Page-1-Picture


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