Orban OPTIMOD-AM 9300, Operating Manual

Page 1: ...Operating Manual OPTIMOD AM 9300 Digital Audio Processor Version 2 0 Software...

Page 2: ...tive of the European Parliament this product must not be discarded into the municipal waste stream in any of the Member States This product may be sent back to your Orban dealer at end of life where...

Page 3: ...spilled into the enclosure through openings Damage Requiring Service The appliance should be serviced by qualified service personnel when The power supply cord or the plug has been damaged or Objects...

Page 4: ...apr svente autoris Safety Instructions Spanish Hacer funcionar el aparato s lo con la tensi n y clase de corriente se aladas en la placa indicadora de caracter sticas Reemplazar los fusibles s lo por...

Page 5: ...you pack the unit for shipping 1 Tighten all screws on any barrier strip s so the screws do not fall out from vibration 2 Wrap the unit in its original plastic bag to avoid abrading the paint 3 Seal t...

Page 6: ...of 20 000 volts This is the spark or shock you may have felt when touching a doorknob or some other conductive surface A much smaller static discharge is likely to destroy one or more of the CMOS semi...

Page 7: ...Operating Manual OPTIMOD AM 9300 Digital Audio Processor Version 2 0 Software...

Page 8: ...NSMITTER LINK 1 9 Transmission from Studio to Transmitter 1 9 Digital Links 1 10 Analog Microwave STLs 1 11 Analog Landline PTT Post Office Line 1 12 AM Transmitters and Antennas 1 12 Bypassing the Tr...

Page 9: ...tic Diagram 2 6 9300 REAR PANEL 2 7 INPUT AND OUTPUT CONNECTIONS 2 8 Cable 2 8 Connectors 2 8 Analog Audio Input 2 8 Analog Audio Outputs 2 9 AES3 Digital Input and Output 2 10 Grounding 2 10 Power Gr...

Page 10: ...cting Using Windows 2000 Modem Connection 2 71 Connecting using Windows XP Modem Connection 2 77 UPDATING YOUR 9300 S SOFTWARE 2 82 SNMP SUPPORT 2 83 SNMP Network Setup 2 84 SNMP Mib file 2 84 SNMP De...

Page 11: ...automation files onto your computer s hard drive 3 41 To restore archived presets system files and automation files 3 41 To modify INPUT OUTPUT and SYSTEM SETUP 3 43 To modify AUTOMATION 3 43 To grou...

Page 12: ...7 OS SPECIFIC TROUBLESHOOTING ADVICE 5 8 Troubleshooting Windows XP Direct Connect 5 8 Troubleshooting Windows XP Modem Connect 5 9 TROUBLESHOOTING IC OPAMPS 5 9 TECHNICAL SUPPORT 5 10 FACTORY SERVICE...

Page 13: ...hips Local regulators Contains Parts Locator Drawing 6 28 L and R Analog Inputs Schematic 1 of 9 6 29 Analog Outputs Schematic 2 of 9 6 30 Digital Input and Sync Input Schematic 3 of 9 6 31 Digital Ou...

Page 14: ...12 analog I O 1 6 analog input circuit description 6 7 ref level I O setup 2 20 analog input 2 8 analog landline 1 12 analog output circuit description 6 9 compensating for 600 ohm load 2 24 analog o...

Page 15: ...25 computer connecting to 2 5 interface specifications 6 3 troubleshooting connections 5 6 Windows XP 5 8 computer interface RS 232 2 7 serial 2 7 computer interface 1 7 connecting through Win XP dire...

Page 16: ...control 3 31 output mix controls 3 34 five band 3 30 frequency response specification 6 1 testing 4 8 front panel 3 1 front panel description 2 11 Full Control 3 11 fuse 6 10 G gain reduction meters...

Page 17: ...on 1 7 location of 9300 optimum 8 lock driven equipment cannot lock to 9300 output 5 5 lockout immediate 2 38 programming local 2 39 unlocking front panel 2 39 lossy data reduction in studio 1 17 NICA...

Page 18: ...mitter 1 12 overshoot excessive 5 1 P parts obtaining 6 13 parts list base board 6 13 display board 6 18 19 I O board 6 15 parts list 6 13 passcode and dial up networking 2 39 creating 2 37 deleting 2...

Page 19: ...emote interface connector 2 7 resolution specification 6 1 reveberation 3 9 RFI 5 1 ringing photo showing 2 31 reducing audible 3 22 testing for 2 27 RJ45 jack 2 43 routine maintenance 4 1 RS232 testi...

Page 20: ...2 14 timeserver 2 47 top cover reattaching 4 5 removing 4 2 transmission preset 1 15 transmitter pre 1965 1 14 transmitter equalization 2 28 transmitter equalizer 1 15 transmitter overshoot 1 12 trou...

Page 21: ...s them Because all processing is performed by high speed mathematical calculations within Motorola DSP56367 digital signal processing chips the processing has cleanliness quality and stability over ti...

Page 22: ...ng the Most of the AM Channel OPTIMOD AM rides gain over an adjustable range of up to 25dB compressing dynamic range and compensating for operator gain riding errors and for gain in consistencies in a...

Page 23: ...nloadable upgrade software on a PC The upgrade can occur remotely through the 9300 s Ethernet port or serial port connected to an external mo dem or locally by connecting a Windows computer to the 930...

Page 24: ...employed at the transmitter site including compressor protection peak limiters clippers and high and low pass filters normally included within the transmitter It can also be installed at the studio if...

Page 25: ...re more than 100 User Presets limited only by available memory in your 9300 which will vary depending on the version of your 9300 s software You can give your preset a name up to 18 characters long Us...

Page 26: ...break points at 477 Hz and 4 13 kHz It is primarily used in older studio transmitter links that use NICAM technology The 9300 s provisions for J 17 make it fully compatible with systems us ing this s...

Page 27: ...ion of OPTIMOD AM Optimal Control of Peak Modulation Levels The audio processing circuitry in OPTIMOD AM produces a waveform that is pre cisely peak controlled to prevent overmodulation and is lowpass...

Page 28: ...transmitter so that OPTIMOD AM s output can be connected to the transmitter through a circuit path that introduces the least possible change in the shape of OPTIMOD AM s carefully peak limited wavefor...

Page 29: ...an uncompressed digital STL Because OPTIMOD AM controls peaks it is irrelevant whether the audio link feeding OPTIMOD AM s input terminals is phase linear However the link should have low noise the fl...

Page 30: ...4 kB second or higher Some links may use straightforward PCM pulse code modulation without lossy da ta reduction If you connect to these through an AES3 digital interface these can be very transparent...

Page 31: ...ound the link This will minimize any audible noise buildup caused by compression within the 9300 Some microwave links can be modified such that the deviation from linear phase is less than 10 from 20...

Page 32: ...sections of the transmitter and upon the behavior of the antenna system The extremely high average power and the pre emphasized high frequency compo nent of audio processed by OPTIMOD AM put great dem...

Page 33: ...by the filters the transmitter s safety clipper will clip the peaks This will introduce out of band energy that will almost certainly violate the limits on occupied bandwidth specified by the governin...

Page 34: ...reatly benefit from a 12 phase power supply The newer generations of transmitters employ switching modulation techniques to control bounce far better than do older plate modulated designs The latest t...

Page 35: ...and multiband distortion canceling clipper Asymmetrical clipping slightly in creases loudness and brightness and can produce dense positive peaks up to 125 However such asymmetrical processing by its...

Page 36: ...r Cutoff Frequency LOW PASS System Lowpass Filter Cutoff Shape LPF SHAPE System Highpass Filter Cutoff Frequency HIGH PASS Positive Peak Threshold Asymmetry POS PEAK For convenience and to describe th...

Page 37: ...ectors Both of these limitations can cause severe problems in AM stereo and even worse ones in HD AM installations Neither problem is easily solved Unless the radio station engineer is a knowledge abl...

Page 38: ...duction in the studio you should use the highest data rate possible This maximizes the headroom between the added noise and the threshold where it will be heard In addition you should minimize the num...

Page 39: ...the studio standardizes on a maximum program indication on the meter that is lower than the clipping level so peaks that the meter does not indicate will not be clipped Line up level is usually at thi...

Page 40: ...nput metering is stereo because the 9300 will most often be fed by a ste reo source even though the 9300 processing is mono Left and right input level is shown on a VU type scale while the metering in...

Page 41: ...oot in the modulation monitor or its RF amplifier If you observe this problem we recommend that you assume that what you see on the oscilloscope is correct oscilloscopes are designed to display pulse...

Page 42: ...ccomplished in three different ways 1 Run EAS tones and data through the 9300 Note that 9300 processing may not allow the full modulation level as required by EAS standards It may therefore be necessa...

Page 43: ...ore of a problem Receiver manufacturers responded by producing receivers with decreased audio bandwidth so that an adjacent station s modulation extremes would not be audible as interference This cutt...

Page 44: ...cond preemphasis deemphasis standard was approved See Figure 1 2 This provides a moderate amount of im provement for existing narrowband radios while optimizing the sound of wideband radios Most impor...

Page 45: ...ilter is in use and the HF CURVE control is set to NRSC Unfortunately at this writing the trend towards wider band receivers has reversed and most receivers are no wider than they were in the 1970s Fo...

Page 46: ...hip your Orban products prepaid to our service department Be sure to include a copy of your sales slip as proof of purchase date We will not repair transit damage under the no charge terms of this war...

Page 47: ...crews 10 32 x with washers 10 1ea PC Remote Software and Operating Manual CD Save all packing materials If you should ever have to ship the 9300 e g for ser vicing it is best to ship it in the origina...

Page 48: ...tly to the 9300 chassis If you need to change the plug to meet your country s standard and you are qualified to do so see Figure 2 1 Otherwise purchase a new mains cord with the correct line plug atta...

Page 49: ...10 Grounding 2 10 5 Connect remote control interface optional For a full listing of 9300 s extensive remote control provisions refer to Remote Control Interface Programming on page 2 40 Optically iso...

Page 50: ...load such as a relay or opto isolator must be positive You can use the 12 VDC source on pin 25 to drive the high side of the load taking into account the fact that the voltage on pin 25 is current li...

Page 51: ...e your 9300 s firmware because 9300 PC Remote manages the upgrade See Networking and Remote Control on page 2 41 Appendix Setting Up Serial Communications on page 2 51 Installing 9300 PC Remote Contro...

Page 52: ...the NRSC standard Therefore the NRSC rolloff will result in sub stantially brighter sound than most radios provide and the 18dB OCTAVE setting provides a more realistic simulation of a typical radio N...

Page 53: ...he ROLLOFF control of the Rolloff Filter to taste See Figure 2 5 on page 2 5 9300 Rear Panel The Power Cord is detachable and is terminated in a U ground plug USA stan dard or CEE7 7 plug Continental...

Page 54: ...ons Cable We recommend using two conductor foil shielded cable such as Belden 8451 or equivalent for the audio input and output connections because signal current flows through the two conductors only...

Page 55: ...of the built in high order EMI suppression filter the source impedance is 351 The output is capable of driving loads of 600 or higher the 100 modu lation level is adjustable with the AO 100 control ov...

Page 56: ...C connec tors A 110 75 balun transformer is required to interface an AES3id connection to your Optimod s digital input or output The digital input clip level is fixed at 0 dB relative to the maximum d...

Page 57: ...und To maintain the same potential in all equipment the circuit audio grounds must be connected together In high RF fields the system is usually grounded through the equipment rack in which the 9300 i...

Page 58: ...Idle screen which is at the top level of the screen hierarchy Input meters show the peak input level applied to the 9300 s analog or digital inputs with reference to 0 digital full scale If the input...

Page 59: ...on while turning the knob However if there is only one parameter on a screen you can change this with the knob alone You do not have to hold down a button Let the text on the screen guide you through...

Page 60: ...F Turn the knob to specify the week of the month when Daylight Saving Time begins G Press the NEXT button H Turn the knob to specify the month at which Standard Time begins in your area I Press the N...

Page 61: ...that you set the highpass filter to 50Hz unless you have a good reason for setting it dif ferently One reason to set it higher would be if you have an older technology transmitter that cannot reprodu...

Page 62: ...tal A Press the NEXT button B If your main input source is digital turn the knob to select DIGITAL or DIGITAL J17 Otherwise select ANALOG The only digital encoding that typically uses J 17 preemphasis...

Page 63: ...atibility with equipment requiring a fixed sample rate In all cases the 9300 s sample rate is 32 kHz and multiples thereof up to 128 kHz 13 Prepare to set output levels A Press the NEXT button The pos...

Page 64: ...ss the NEXT button If you activated the modulation setup tone in step 13 A on page 2 17 the tone will turn off automatically D Press the NEXT button 16 Choose a processing preset A Turn the knob until...

Page 65: ...the PC Remote application A Navigate to SETUP NEXT TIME DATE AND ID STATION ID B Use the knob to set the each character in the ID Use the NEXT and PREV but tons to control the cursor position C When f...

Page 66: ...1 18 This step sets the center of the 9300 s gain reduction range to the level to which your studio operators peak their program material on the studio meters This as sures that the 9300 s processing...

Page 67: ...terial typically 0VU if your console uses VU meters c Adjust the AI REF VU or PPM control to make the 9300 s AGC meters indicate an average of 10 dB gain reduction when the console s VU meter or PPM i...

Page 68: ...ur RF occupied bandwidth so it is very important to set it to meet the government stan dards in your country Note that the user processing presets can only lower the low pass cutoff frequency below it...

Page 69: ...stopband progressively more rounded and gentle each step trades off duller sound against less ringing See Figure 2 7 on page 2 23 D Hold down the soft key under HIGHPASS and Select the highpass filte...

Page 70: ...step if you will not be using the digital output s A Navigate to SETUP IO CALIB OUTPUT DIGITAL If necessary use the NEXT button to scroll horizontally B Set the PRE EMPH control to J 17 or FLAT Almost...

Page 71: ...mple rate is synchronized to the 9300 s internal crystal controlled clock or EXTERNAL the output sample rate is synchronized to the sample rate appearing at the 9300 s AES3 in put 9 Program Tally Outp...

Page 72: ...ansmitter under adjustment b Turn the transmitter on c Set the control you adjusted in step a to produce 40 modulation This leaves 2 dB of headroom to accommodate overshoot in the transmis sion plant...

Page 73: ...sweep you do not need to set up the transmitter equalizer in steps 12 through 13 H a below Otherwise you must do so to achieve the highest loudness and coverage that your facility can produce If you...

Page 74: ...lizer section of the Transmitter Equalizer is up approximately 3dB LF GAIN Determines the maximum amount of low frequency correction provided by the Tilt Equalizer section of the Transmitter Equalizer...

Page 75: ...wave re sponse Depending on the transmitter this large amount of boost at sub audible frequencies might cause bounce and or distortion on heavy bass tran sients in music In step 14 on page 2 32 you w...

Page 76: ...nd far better on the air K Turn off the transmitter and allow it to cool down for several minutes 13 Equalize transmitter high frequency response A Set the 9300 s square wave controls to produce a 1 k...

Page 77: ...evel as closely as possible with out exceeding it Note that the HF GAIN control does most of the work Note also that the HF DELAY control will produce little or no visible effect until you set it beyo...

Page 78: ...etting yields the cleanest sound See page 1 15 for an expla nation However if absolute maximum loudness is desired at the expense of cleanest possible sound the POS PEAK control may be set as high as...

Page 79: ...omise The preceding transmitter equalization adjustment using square waves was done using the maximum low frequency boost to ensure response that is closest to true DC coupling which optimizes square...

Page 80: ...ot already done so set the system clock You can also set the clock automatically via PC Remote or the Internet See Synchronizing Optimod to a Network Timeserver starting on page 2 47 A Navigate to SET...

Page 81: ...EV and NEXT buttons to move the cursor to the day month and year when the automation event will occur Set the desired values with the knob c Use the PREV and NEXT buttons to move the cursor set the ho...

Page 82: ...tem Preset Exit test restores the operating preset that was on air before a test mode was invoked F When you have finished programmed an event press the SAVE EVENT button You will return to the automa...

Page 83: ...no default passcode The Optimod s front panel cannot be locked out unless the Optimod has been assigned at least one All Access passcode Your Optimod secures User Presets by encrypting them using the...

Page 84: ...y password protected you can only access this screen by entering a passcode with ALL ACCESS privileges B Turn the knob until you see the passcode you want to edit C Press the NEXT button The Permissio...

Page 85: ...SS passcode is required to fully un lock the panel or to turn off the Autolock function C Press the ESCAPE button to leave the Security menu To Unlock the Front Panel A On the 9300 front panel operate...

Page 86: ...ty The RESTORE DEFAULTS button takes you to a screen that allows you to keep or erase any user presets that exist in your unit Remote Control Interface Programming Skip this step if you do not wish to...

Page 87: ...this function to periodically re sync the 9300 s internal clock to your station s master clock Pass User Bits Passes User Bits as defined in the AES3 standard from the AES digital input through to the...

Page 88: ...e SET SUBNET MASK soft button b Use the NEXT and PREV keys to move the cursor in turn to each digit in the subnet mask Use the knob to set the digit to the desired value Repeat until you have selected...

Page 89: ...e NEXT and PREV KEYs to move the cursor in turn to each character in the modem initialization string Use the knob to set the character to the desired value Repeat until you have set all the characters...

Page 90: ...ware is supplied on a CD shipped with your 9300 You can also download it from ftp orban com 9300 Instructions for using the PC Remote software are found in Section 3 of this manual Installing the Nece...

Page 91: ...called a reverse cable This cable has DB9 female connectors at both ends for connecting the 9300 to the se rial port on your computer If your computer has a DB25 connector you will need to obtain an...

Page 92: ...lled all files necessary to use the PC Remote software If you are using a direct serial or a modem connection the next step is to install and configure the Windows communications services that allow y...

Page 93: ...k Timeserver Skip this section if you do not wish to automatically synchronize your Optimod s in ternal clock to a network timeserver which may be part of your local network or lo cated on the Interne...

Page 94: ...y enter the time server s IP address for example 192 43 244 18 If you specify the timeserver from PC Remote you can specify either its named address for example time nist gov or its IP address 4 Speci...

Page 95: ...Windows navigate to the CONTROL PANEL DATE AND TIME TIME ZONE tab B Set time zone to correspond to your local time zone C In Windows navigate to the CONTROL PANEL DATE AND TIME INTERNET TIME tab D If...

Page 96: ...nnect from PC Remote and then to press the SYNC NOW but ton on your Optimod step 4 B on page 2 48 This is to test the ability of your Optimod to synchronize to the selected timeserver and to ensure th...

Page 97: ...the 9300 s rear panel Be sure to use a null modem cable A normal serial cable will not work B Connect the other end of the cable to your computer s COM port Connecting Using Windows 2000 Direct Serial...

Page 98: ...he 9300 on page 5 7 1 Add and configure a Direct Connection for Windows 2000 A Create a New Windows 2000 Direct Connection a Launch 9300 PC Remote b Choose Connect New 9300 c Give your 9300 a name e g...

Page 99: ...on j Click Next k Select either For all users or Only for myself The correct setting depends on how your net work and security are configured Your wizard may not display this field if your computer is...

Page 100: ...Click Yes B Edit your new Direct Connection properties a Click Settings b Click the General tab c Select the device you set up in step i on page 2 53 This will usually be Communications cable between...

Page 101: ...lect the Networking tab j Make sure that PPP Windows 95 98 NT 4 2000 Internet appears in the Type of dial up server I am calling field k Make sure that Internet Protocol TCP IP is checked You may leav...

Page 102: ...shooting Windows 2000 Direct Connect on page 5 8 If you have trouble the first time after creating a connection according to the instructions above try restarting your computer to clear its serial por...

Page 103: ...you wish to have 9300 PC Remote remember the password for this Optimod enter the password in the Password field e Select Serial Connection f Click the Add button g Choose Connect directly to another c...

Page 104: ...2 58 INSTALLATION ORBAN MODEL 9300 k Type in a name for your Connection such as Connection to 9300 l Click Finish m Click Yes B Edit your new Direct Connection properties a Click Settings...

Page 105: ...he device you set up in step i on page 2 57 This will usually be Communications cable between two computers COM1 d Click Configure e Set the Maximum Speed bps to 115200 f Check Enable hardware flow co...

Page 106: ...emote application see To set up a new connection on page 3 38 choosing this connection from 9300 PC Remote automatically opens a Windows Direct Connec tion to your 9300 You can connect by selecting th...

Page 107: ...ns see page 2 52 Connecting Using Windows 7 Direct Serial Connection You must install the Windows 7 direct serial connection as a modem device using the Modem setup procedures as shown in the steps be...

Page 108: ...o dems tab and click Add You need ad ministrator s rights to do this If UAC comes up provide the relevant creden tials and pro ceed C The Add Hardware Wizard will appear a Tick Don t detect my modem I...

Page 109: ...ew Modem window will appear a Select Communications cable between two computers b Proceed to next step by clicking on the NEXT button E Select the Serial com port to which the NULL cable is con nected...

Page 110: ...mpletes the installation of the device driver for the device Communications cable between two computers This configuration is also commonly known as Di rect Cable Communications 2 Set up the Network f...

Page 111: ...MOD AM DIGITAL INSTALLATION 2 65 A Go to the Network and Sharing Center and click on Set up a new connection or network link B In the Choose a connection op tion window select Set up a di al up connec...

Page 112: ...modem device D When prompted to Type the information from your Internet Service Provider enter a dummy number to the phone number field Windows will not use it E Choose a name for your connection and...

Page 113: ...Optimod Although you did not specifically install any thing that states PPP the PPP protocol has nev ertheless been installed 3 Configure the Direct Cable Connection adapter In this step you will cust...

Page 114: ...tials and con tinue C In the Direct Serial PPP Properties window select the General tab D Click the Configure but ton and select 115200 bps E Click OK to close the window F Make sure your bps set tin...

Page 115: ...OK to close the window e Click OK to dismiss the Properties window f Restart your computer Restarting should ensure that the bps setting is saved G Select the Networking tab a Unselect the Internet P...

Page 116: ...is connection from 9300 PC Remote automatically opens a Windows Direct Connec tion to your 9300 You can connect by selecting the desired con nection from the drop down list in the CONNECT menu You can...

Page 117: ...e telephone line from the wall phone jack to the wall connection icon on the back of the modem modem in B Connect the modem cable from the modem to the serial port of the 9300 C Set the modem to AUTO...

Page 118: ...g Modems are installed and it is attached to the correct port then click Properties for that modem g Make sure the port speed is set at 115200 h Click OK B Create a New Windows 2000 Dial Up Connection...

Page 119: ...r the phone number of the modem connected to the 9300 that you are setting up j Click the Next button k Select either For all users or Only for myself The correct setting depends on how your network a...

Page 120: ...ON ORBAN MODEL 9300 m Click the Next but ton n Type in a name for your Connection such as Connection to 9300 Modem o Click the Finish but ton p Click Yes D Edit your new Direct Connection properties a...

Page 121: ...select the modem you will be using to make the connection on the PC side d Click Configure e Set Maximum speed bps to 115200 f Check Enable hard ware flow control g Check Enable modem error control h...

Page 122: ...38 choosing this connection from 9300 PC Remote automatically opens a Windows modem connection to your 9300 You can connect by selecting the desired con nection from the drop down list in the CONNECT...

Page 123: ...icon A list will branch off showing your available ports f Double click Communications Port COM1 or COM2 depending on how you set up your system The Communications Port Comx Properties dialog box ope...

Page 124: ...entation f If your modem is available in the list available under The following Modems are installed and it is attached to the correct port then click Properties for that modem g Make sure the port sp...

Page 125: ...up f Select Serial Connection g Click the Add button h Select Dial up to private network i Click Next j Enter the phone number of the modem connected to the 9300 you are setting up k Click Next l Type...

Page 126: ...TION ORBAN MODEL 9300 n Click Yes D Edit your new Direct Con nection properties a Click Settings b Click the General tab c Select the modem you will be using to make the connection on the PC side d Cl...

Page 127: ...Type of dial up server I am calling field m Make sure that Internet Protocol TCP IP is checked You may leave Client for Microsoft Networks checked if you like n Click OK o When the Connection propert...

Page 128: ...The software version number of PC Remote must be the same as the version number of the software running within your 9300 If the software version of PC Remote is higher than the version running in your...

Page 129: ...ill be interrupted for approximately 3 seconds when your 9300 reboots Do not interrupt power to your 9300 or your computer close PC Remote or the update application s command line window or reboot you...

Page 130: ...e press the Next Prev but tons until it is B While holding down the SNMP ENABLE soft button turn the knob to set the SNMP ENABLE field to YES The controls below are only available from Optimod PC Remo...

Page 131: ...h all of the get commands and dis plays their status o Primary and Secondary Manager IP o Primary and Secondary Manager Port o Analog Input Active The analog input is selected as the input source o AE...

Page 132: ...nity string along with all SNMP requests If the community string is correct the device responds with the requested information If the community string is incorrect the device simply discards the reque...

Page 133: ...inactive Control Knob is used to change the setting that is selected by the soft buttons To change a value you ordinarily have to hold down a soft button while you are turning the control knob Recall...

Page 134: ...ion Output meters show the instantaneous peak output of the processed audio in units of percentage modulation The right hand meter shows positive peaks and the left hand meter shows negative peaks Som...

Page 135: ...age level and thus the loudness to decrease proportionally Receiver high frequency rolloff introduces further complications A typical receiver s severe HF rolloff reduces the headroom available at hig...

Page 136: ...ve band compressor with Orban s exclusive multiband distortion cancelling clipper This system embeds the clipper within the multiband crossover to permit the crossover to filter out clipping distortio...

Page 137: ...lization and or decrease the audio bandwidth of the processing by adjusting the system low pass filter because you will discover that you can achieve a louder sound with the same amount of distortion...

Page 138: ...n the probable signal quality at the re ceiver The broadcasting organization usually does not have the luxury of making fine adjustments to match different types of program material because such fine...

Page 139: ...on page 3 21 and Figure 2 5 on page 2 5 Because the filter shelves off at high frequencies to match the re ceiver equalization instead of continuing to roll off like a real radio the monitor will soun...

Page 140: ...d don t trust the radio If the General Manager s auto radio sounds distorted he or she should not jump to the conclusion that there is something wrong with the station or with the engineer s ears Modu...

Page 141: ...true on a wideband radio Reverberation In the distant past the addition of artificial reverberation was touted as an easy method of achieving greater loudness in AM broadcasting Given the limitations...

Page 142: ...300 s permanent ROM Read Only Memory In this table are sets of subjective setup control settings that provide in our opinion the most favor able trade off between loudness density and audible distorti...

Page 143: ...o beyond Full Control even if they want to create a signature sound for their station Note Full Control does not provide LESS MORE control Furthermore once you have edited a preset s multiband dynamic...

Page 144: ...s nastinesses are likely to commence Because the various compressors have 25 dB of gain reduction range the meter should never come close to 25 dB gain reduction if OPTIMOD AM has been set up for a sa...

Page 145: ...your computer while saved presets reside in the 9300 s local non volatile memory You cannot archive a preset until you have saved it See To back up user pre sets system files and automation files ont...

Page 146: ...Preset Do not be afraid to choose a preset other than the one named for the type of pro gramming on air if you believe this other preset has a more appropriate sound Also if you want to fine tune the...

Page 147: ...ides excellent consistency intelligibility and loudness FINE ARTS is based on the Slow multiband release time It is designed for classical and jazz programming where an open unprocessed sound is more...

Page 148: ...ders speech crisp loud and highly intelligible This preset is targeted for the typical narrowband MW radio and will sound shrill and unpleasant on wideband radios of which there are very few in the ma...

Page 149: ...lizer with conventional bell shaped curves within 0 15 dB worst case This provides warm smooth analog sounding equalization Equalizer Controls Group Basic Full Control Name Advanced Name Range LF FREQ...

Page 150: ...Use of a narrow bandwidth a low boost frequency like 65 Hz and a relatively large boost can produce a very punchy sound in a car or on a radio with significant bass response It can also cost you loudn...

Page 151: ...eter that relates to how fast ringing damps out Technically we are referring to the Q of the poles of the equal izer transfer function which does not change as you adjust the amount of boost or cut Th...

Page 152: ...oned AM honk We do not believe that type of sound is appropriate for the tastes of today s audiences The 1kHz boost should be used only as a last resort the resulting sound will be louder but it will...

Page 153: ...abrupt curve 10 provides the gentlest The HF CURVE control is used to trade off harshness on wider band radios against brightness in narrowband ra dios An HF CURVE of 0 provides the same equalization...

Page 154: ...ffs We believe that these radios benefit more from a boost at 3 kHz combined with very little HF shelving EQ These radios have almost no response at 5 kHz and above so boosting frequencies above 5 kHz...

Page 155: ...e controls provide further equalization capabil ity This set of controls can be used like a graphic equalizer to get a different fla vor of equalization from that provided by the other equalizer contr...

Page 156: ...e amount of gain reduction in the AGC section when the structure is gated It gates whenever the input level to the structure is below the threshold of gating The total amount of gain reduction in the...

Page 157: ...cause listener fatigue Adjust the AGC with the AGC DRIVE control to produce the desired amount of AGC action and then fine tune the compression and clipping with the 9300 pro cessing s controls AGC GA...

Page 158: ...as necessary but does not permit it to provide a bass boost AGC METR AGC Meter Display determines what the AGC meter shows the gain reduction of the slow two band AGC processing that precedes the mul...

Page 159: ...justing it AGC Ratio determines the compression ratio of the AGC The compression ratio is the ratio between the change in input level and the resulting change in output lev el both measured in units o...

Page 160: ...e careful when setting this control do not adjust it casually Listen to program material with heavy bass combined with spec trally sparse midrange material like a singer accompanied by a bass guitar a...

Page 161: ...al Clip Final Clip Drive adjusts the level of the audio driving the back end clipping system that OPTIMOD AM uses to control fast peaks This control primarily determines the loudness distortion trade...

Page 162: ...ive level into the multiband compressor because these faster release times produce more limiting action Increasing density can make sounds seem louder but can also result in an unattractive busier fla...

Page 163: ...from record to record especially those recorded in different eras And for background music formats these settings ensure that your sound doesn t lose its highs and lows Because it creates a more consi...

Page 164: ...ttings your sound is getting farther away from the balance and texture of the input We think that this is as far as processing can go without causing unacceptable listener fatigue However this sound m...

Page 165: ...hich the single ended noise reduction system s downward expander begins to decrease system gain and below which the high frequencies begin to become low pass fil tered to reduce perceived noise Activa...

Page 166: ...ou B2 B1 CPL control determines the extent to which the gain of band 1 below 100Hz or 200Hz depending on crossover setting is determined by and follows the gain of band 2 centered at 400Hz Set towards...

Page 167: ...and or any combination of bands independently This is a feature designed for intermediate or advanced users and developers when they are creating new 9300 presets Please note that a single band will i...

Page 168: ...reate a release slower than slow or faster than fast the two end stops of the MULTIBAND RELEASE control the band in question will instead set its release time at the appro priate end stop B1 B2 Xover...

Page 169: ...ighpass filter to the bypass signal chain The active System Preset deter mines the filter s cutoff frequency Setup Test Parameter Labels Units Default Range CCW to CW Step MODE Operate Operate Bypass...

Page 170: ...the PC a 9300 that can be accessed through a modem connected to the PC via dial up networking and a 9300 that is connected directly to the PC s serial port Before your PC can communicate with a given...

Page 171: ...scode and the 9300 PC Remote software will initiate a connection to the 9300 unit A window will appear saying Connecting to the 9300 please wait A few mo ments later a new message will appear Loading...

Page 172: ...y clicking the RECALL PRESET button will toggle between the current and previous on air presets D Click DONE to dismiss the OPEN PRESET FILE dialog box The folder on your hard drive containing the pre...

Page 173: ...oded into the soft ware If you wish to move the backup files somewhere else later use a file manager like Explorer on your computer To make more than one backup archive rename the current backup folde...

Page 174: ...d on a different 9300 navigate to that directory from within the dialog box C To restore a single user preset a Set the FILES OF TYPE field to a user preset file type orb93user orbu b Select the desir...

Page 175: ...the right hand side of the dialog box E Check the ENABLE AUTOMATION check box at the top of the dialog box to en able automation To group multiple 9300s Right click ALL CONNECTIONS in the Connections...

Page 176: ...he previ ous location and restore their contents by copying it from their associated 9300s when 9300 PC Remote connects to such a 9300 Multiple Installations of Optimod 9300 PC Remote Rarely you may w...

Page 177: ...ias folders need to be re created under the Optimod 9300 PC Remote software you wish to use so that the registry entries can be correctly updated You can do this two different ways Rename the Alias pr...

Page 178: ...3 46 OPERATION ORBAN MODEL 9300...

Page 179: ...hat the 9300 is at fault The troubleshooting information in Section 5 will help you determine if the problem is with OPTIMOD AM or is somewhere else in the station s equip ment 3 Periodically check fo...

Page 180: ...ewdriver 2 Removing the Front Panel Assembly A Detach the cables that connect the display board assembly to the control board Avoid bending or breaking the pins Note the lead dress so you can re assem...

Page 181: ...r cable that connects the I O DSP board to the control board E Disconnect the ribbon cable connecting the power supply to the control board There are two connectors unplug both Note the lead dress so...

Page 182: ...supply board to the I O DSP board G Secure the insulating cover to the long standoff This cover must be replaced for safety 7 Replacing the Control board and I O Board DSP board Referring to steps 3...

Page 183: ...the chassis G Reattach the four cables that connect the display board to the base board Each cable has a different type or size of connector so it is obvious which ca ble mates with which jack on the...

Page 184: ...the DSP is otherwise operating normally It is often more convenient to make measurements on the bench away from high RF fields which could affect results For example in a high RF field it is very dif...

Page 185: ...ternal DO Word Len 20 DO Dither Out DO FORMAT AES3 POLARITY Positive PRE EMPH Flat e Navigate to SETUP TEST Set controls as follows MODE Bypass NOTE Bypass defeats all compression limiting and program...

Page 186: ...dBu with the oscilla tor set to 100 Hz E Connect the audio analyzer to the 9300 s Left Analog Output XLR connector F Verify a level of 10 dBu 1 dB Use this level as the reference level G Verify that...

Page 187: ...digital source generator to 400 Hz and its output level to 6 dB below full scale F Set the word length of the digital source generator to 24 bit In turn set the generator to emit 32 kHz 44 1 kHz 48 k...

Page 188: ...the 9300 is working cor rectly However the BYPASS mode does not use all of the DSP chips so the previous tests may fail to detect faults in certain DSP chips To verify that all of the DSP chips are wo...

Page 189: ...trol The 9300 ordinarily controls peak modulation to an accuracy of 2 This accuracy will be destroyed if the signal path including the STL and transmitter following the 9300 has poor transient respons...

Page 190: ...ntrol beyond 9 will cause audible distortion of some program material with all but the Classical and Protect presets Further the Loud family of presets can sometimes cause au dible distortion with cer...

Page 191: ...reference lev el to achieve adequately low noise Clipping occurs at 27 dBu The 9300 s AES3 input is capable of receiving words of up to 24 bits A 24 bit word has a dynamic range of approximately 144...

Page 192: ...t increased higher than the setting in the active system preset The 9300 has very tight spectral control that significantly exceeds the requirements of all international regulatory authorities includi...

Page 193: ...l for each preset are sufficient to find a satisfactory sound However some users will not be satisfied until they have accessed other Modify Processing controls and have adjusted the subjective setup...

Page 194: ...rograms before attempting to update Interrupted Software Updates If you canceled an update before it com pleted wait at least one minute before attempting your next update Software Updates via Modem I...

Page 195: ...nal modem attached to your 9300 is set to AUTO ANSWER F Make sure that the only Allowed Network Protocol is TCP IP NetBUI and IPX SPX Compatible must not be checked If you cannot connect to your compu...

Page 196: ...2000 Internet F Select the Settings button and make sure all PPP settings are unchecked then click OK G In This connection uses the following items uncheck all except for Internet Protocol TCP IP You...

Page 197: ...o leave QoS Packet Scheduler checked if you like G In This connection uses the following items select Internet Protocol TCP IP and then click the Properties button The Internet Protocol TCP IP Propert...

Page 198: ...9300 this is printed on the rear panel of the unit Current contact information is found at http www orban com contact Please check Orban s website www orban com for Frequently Asked Questions and othe...

Page 199: ...hick fiber blankets and the like are acceptable cushioning materi als foam popcorn and crumpled newspaper are not Wrap cushioning materials tightly around the unit and tape them in place to prevent th...

Page 200: ......

Page 201: ...in the processor is set for Limit Drive AGC Drive Two Band Drive and or Multiband Drive gating level equalization noise reduction etc The dynamic range of the A D Converter which has a specified overl...

Page 202: ...udio Output Configuration Two monophonic outputs capable to driving two transmitters The two out puts have independent level controls Source Impedance 351 includes the third order output EMI suppressi...

Page 203: ...d pins 2 and 3 trans former balanced and floating 110 impedance Output Level 100 peak modulation 20 0 to 0 0 dBFS software controlled Level must be set lower than 2 0 dBfs to prevent clipping positive...

Page 204: ...laced with tools typically available in the field Field repair ordinarily consists of swapping entire PC boards The section starts with an overview of the 9300 system identifying circuit sections and...

Page 205: ...y reboots the SC520 The DSP chips will continue to process audio until the time comes to reload DSP program code into them At this point the audio will mute for about a second until the DSP code downl...

Page 206: ...shbutton switches are arranged in a matrix configured as three columns and four rows These switches are the primary element of the physical user interface to the 9300 control software The host micropr...

Page 207: ...ontrol circuits set the gain to correspond to what the user specifies via the front panel controls The gain amplifier s output feeds a cir cuit that scales balances and DC biases the signal This circu...

Page 208: ...ital audio signals using the AES3 interface format AES3 1992 It applies its output to sample rate converter IC302 This accepts and sample rate converts any of the standard 32 kHz 44 1 kHz 48 kHz 88 2...

Page 209: ...ta sigma D A s noise shaping filter and to translate the differential output of the D A converter into single ended form These com ponents apply a 3rd order low pass filter to the differential signal...

Page 210: ...atus and will display an error message on screen if the DSP fails to initialize normally Please note any such messages and be ready to report them to Orban Cus tomer Service The DSP chips are located...

Page 211: ...into 600 scale on voltmeters can be read as if it were calibrated in dBu DI digital input DJ disk jockey an announcer who plays records in a club or on the air DO digital output DOS Microsoft disk op...

Page 212: ...am or network related data to the consumer in the form of text that is displayed on the radio Occupied bandwidth is 2500 Hz REF reference RF radio frequency RFI radio frequency interference RMS root m...

Page 213: ...listing of a part includes the note selected or realignment required Orban normally maintains an inventory of tested exact replacement parts that can be supplied quickly at nominal cost Standardized...

Page 214: ...CAPACITOR NPO 100PF 1 0805 C22 C34 C40 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C58 C59 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 21146 310 01 CAPACITOR 01uf 0805 10 C10 C126 C127 C133 C134...

Page 215: ...ILLATOR 33MHZ SG636PCE 4P SMD X1 28090 000 01 IC TCXO DS32KHZ 36P BGA U13 28091 000 01 XTAL 25MHZ RXD MP35L SMD Y1 44099 100 01 FIRMWARE 8300 U4 28F128 U4 20129 604 01 1 R0805 604 1 1 8W R48 R49 R51 R...

Page 216: ...1 8W 1 14 7K 0805 R114 R129 20131 499 01 RESISTOR 1 8W 1 49 9K 0805 R301 R304 R310 R311 R317 R318 R401 R402 R700 R706 R707 R900 R901 R904 20131 825 01 RESISTOR 1 8W 1 82 5K 0805 R104 R123 R203 R209 R2...

Page 217: ...CR100 CR103 CR104 CR105 CR202 CR203 CR204 CR205 23214 000 01 TRANSISTOR NPN MMBT3904 Q900 24024 000 01 IC OPA2134PA IC100 IC102 24307 901 01 IC LINEAR DC REG 5V POS IC902 24334 000 01 IC 1 5A SWITCH...

Page 218: ...5 COG C132 C133 C134 C135 21170 310 01 1 CCC 0805 01U 50 5 COG C100 C102 C104 C106 24676 000 01 1 IC TRANS CS8427 28 PIN IC300 24760 000 01 1 IC QUAD CMOS SPST SWITCH IC101 IC103 24762 000 01 1 IC QUA...

Page 219: ...T245DW IC8 25112 001 01 LED RED GREEN BI COLOR POLAR CR1 26085 000 01 SWITCH ROT VERTICAL MOUNT 2 BIT S12 27366 000 01 CONNECTOR 100 POSTS 5X2 MLE P1 27367 000 01 CONNECTOR 100 POSTS 8X2 P2 P3 P4 2740...

Page 220: ...Input output DSP Chips Local regulators Contains Parts Locator Drawing 6 28 L and R Analog Inputs Schematic 1 of 9 6 29 Analog Outputs Schematic 2 of 9 6 30 Digital Input and Sync Input Schematic 3 o...

Page 221: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 21...

Page 222: ...6 22 TECHNICAL DATA ORBAN MODEL 9300 CONTROL BOARD PARTS LOCATOR...

Page 223: ...GPA21 GPA22 GPA23 GP_RESET GP_AEN GP_MEMWR N GP_MEMRD N 3 3V 1 2 3 4 5 6 7 8 10 9 RN3 RNET4 7K PIO26 GPMEMCS16 N PIO25 GPIOCS16 N PIO13 GPIRQ10 PIO23 GPIRQ0 PIO22 GPIRQ1 PIO15 GPIRQ8 PIO21 GPIRQ2 DACK...

Page 224: ...MECC5 MECC6 3 3V 3 3V MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 MA12 MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 MA12 BA0 BA1 MD0 MD1 MD2 MD3 MD4 MD5 MD6 MD7 MD8 MD9 MD10 MD11 MD12 MD13...

Page 225: ...9 PCI_AD30 PCI_AD31 PCI_AD 0 31 PCI_AD24 PCI_CBE0 N PCI_CBE1 N PCI_CBE2 N PCI_CBE3 N PCI_RESET N PCI_DEVSEL N PCI_STOP N PCI_IRDY N PCI_TRDY N PCI_FRAME N PCI_PERR N PCI_SERR N PCI_PARITY PCI_REQ0 N P...

Page 226: ...11 U19C PS2506 4 7 8 10 9 U19D PS2506 4 1 2 3 4 J8 HDR 2X2 KEY KEY TO POW ER ON LED DB25 M NC AF25 NC AF23 NC AF1 NC AE25 NC AE24 NC AE1 NC AD25 NC AD26 NC AD1 NC AD2 NC AC25 NC AC3 NC AA26 NC AB4 NC...

Page 227: ...1UF C177 0 1UF C179 0 1UF C182 0 1UF R34 10 OHM C126 0 01UF C127 0 01UF C133 0 01UF C134 0 01UF C156 0 01UF C158 0 01UF C160 0 01UF C162 0 01UF C180 0 01UF C14 1 0UF C17 1 0UF C125 1 0UF C132 1 0UF C...

Page 228: ...6 28 TECHNICAL DATA ORBAN MODEL 9300...

Page 229: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 29 I O DSP BOARD LEFT AND RIGHT ANALOG INPUTS...

Page 230: ...6 30 TECHNICAL DATA ORBAN MODEL 9300 I O DSP BOARD ANALOG OUTPUTS...

Page 231: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 31...

Page 232: ...CK 12 ISCLK 13 SDIN 14 SCL CCLK 28 AD1 CDIN 27 TXP 26 TXN 25 H S 24 VL 23 DGND 22 OMCK 21 U 20 INT 19 TEST 18 TEST 17 TEST 16 TCBL 15 IC404 CS8406 CZZ MCLK_C MCLK_C SHT9 SHT9 SHT9 SHT9 SHT8 SHT9 SHT9...

Page 233: ...0 47 F C504 0 47 F C506 0 47 F 1 8V 1 8V 1 8V 1 8V 3 3V 3 3V E28 E29 E30 E31 C508 0 47 F E32 E33 3 3V 3 3V SD31 E34 E35 SD00 SHT9 SHT9 SHT9 SHT9 SHT9 BCLKA FSYNCA BCLKA FSYNCA BCLKA FSYNCA BCLKA FSYNC...

Page 234: ...3 3V 1 8V E602 3 3V 1 8V E603 A0 72 A1 73 A2 76 A3 77 A4 78 A5 79 A6 82 A7 83 A8 84 A9 85 A10 88 A11 89 A12 92 A13 93 A14 94 A15 97 A16 98 A17 99 AA0 RAS0 70 AA1 RAS1 69 AA2 RAS2 51 CAS 52 RD 68 WR 6...

Page 235: ...INCS N INGAINCS N ADRST N DARST N SRCRST N SHT9 SHT9 D0 D1 D2 D3 D4 D5 D6 D7 SHT2 5 5V 5V E707 E708 D0 3 Q0 2 D1 4 Q1 5 D2 7 Q2 6 D3 8 Q3 9 D4 13 Q4 12 D5 14 Q5 15 D6 17 Q6 16 D7 18 Q7 19 OE 1 CLK 11...

Page 236: ...AETC100 10 3 3V 24 576MHZ 3 3V DSPRST N START SHT8 SHT8 1 R800 4 99K 1 2 3 J801 HDR 3 SD00 SD01 SD02 SD03 SD04 SD10 SD11 SD20 SD21 SD30 SD31 SD32 SD33 SD34 SHT6 SHT6 SHT6 SHT6 SHT6 SHT6 SHT6 SHT6 SHT6...

Page 237: ...F C953 0 1 F C954 0 1 F 5V C955 0 1 F C956 0 1 F C957 0 1 F C958 0 1 F 20V C946 10 F C959 0 1 F C1003 0 1 F C1004 0 1 F 3 3V C1010 10 F C1011 1 0 F C960 0 1 F C961 0 1 F C962 0 1 F C963 0 1 F C964 0...

Page 238: ...6 38 TECHNICAL DATA ORBAN MODEL 9300 FRONT VIEW REAR VIEW FRONT PANEL PARTS LOCATOR DIAGRAM...

Page 239: ...R Y 2 R Y 3 R Y 4 R Y 5 1 2 YEL CR8A 3 4 YEL CR8B 5 6 YEL CR8C 7 8 YEL CR8D 9 10 YEL CR8E 11 12 YEL CR8F 13 14 YEL CR8G 15 16 YEL CR8H 17 18 YEL CR8I 19 20 RED CR8J 1 2 GRN CR9A 3 4 GRN CR9B 5 6 GRN C...

Page 240: ...0 12 14 16 P2 8x2 POSTS F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F25 F26 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 P3 8x2 POSTS FY0 FY1 FY2 FY3 FY4 F...

Page 241: ...LIPPER ANALOG DIGITAL L INPUT SWITCHABLE BETWEEN FILTER PASS HIGH LOWPASS FILTER FILTER LOWPASS 4 5 9 5 KHZ OVERSHOOT COMPENSATOR EQUALIZER TRANSMITTER HF ENHANCER EQUALIZER TWO BAND AGC COMPRESSOR 5...

Page 242: ...6 42 TECHNICAL DATA ORBAN MODEL 9300 NOTES...