Operating Manual
OPTIMOD-FM 8200
Digital Audio Processor
®
IMPORTANT NOTE: Refer to the unit’s rear panel for your Model #.
Model Number: |
Description: |
8200/U3S |
OPTIMOD-FM 8200 DIGITAL with three DSP cards, Stereo Encoder, |
|
Protection Structure, Two-band Purist Structure, Two-band Normal |
|
Structure, Multi-band Processing Structure, set to 115V (for 90-130V |
|
operation), switchable to 50 s or 75 s. |
8200/E3S |
OPTIMOD-FM 8200 DIGITAL with three DSP cards, Stereo Encoder, |
|
Protection Structure, Two-band Purist Structure, Two-band Normal |
|
Structure, Multi-band Processing Structure, set to 230V, (for 180-260V |
|
operation), switchable to 50 s or 75 s. |
OPTIONS AVAILABLE: |
|
Model Number: |
Description: |
CIT25 |
Composite Isolation Transformer. |
8200D/32 |
Digital I/O Card, 32kHz |
8200 PC |
Remote Control Software for IBM PC compatible computers |
MANUAL: |
|
Part Number: |
Description: |
95100-301-01 |
8200 Manual (includes 8200 PC Manual) |
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
This symbol, wherever it appears,
alerts you to the presence of uninsulated dangerous voltage inside the enclosure — voltage that may be sufficient to constitute a risk of shock.
This symbol, wherever it appears, alerts you to important operating and
maintenance instructions in the accompanying literature. Read the manual.
IMPORTANT SAFETY INSTRUCTIONS
All the safety and operating instructions should be read before the appliance is operated.
Retain Instructions: The safety and operation instructions should be retained for future reference.
Heed Warnings: All warnings on the appliance and in the operating instructions should be adhered to.
Follow Instructions: All operation and user instructions should be followed.
Water and Moisture: The appliance should not be used near water (e.g., near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc.).
Ventilation: The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the
appliance should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.
Heat: The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat.
Power Sources: The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.
Grounding or Polarization: Precautions should be taken so that the grounding or polarization means of an appliance is not defeated.
Power-Cord Protection: Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.
Cleaning: The appliance should be cleaned only as recommended by the manufacturer.
Non-Use Periods: The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.
Object and Liquid Entry:
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 have fallen, or liquid has been spilled into the appliance; or The appliance has been exposed to rain; or
The appliance does not appear to operate normally or exhibits a marked change in performance; or The appliance has been dropped, or the enclosure damaged.
Servicing: The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel.
The Appliance should be used only with a cart or stand that is recommended by the manufacturer.
Safety Instructions (European)
Notice For U.K. Customers If Your Unit Is Equipped With A Power Cord.
WARNING: THIS APPLIANCE MUST BE EARTHED.
The cores in the mains lead are coloured in accordance with the following code:
GREEN and YELLOW - Earth BLUE - Neutral BROWN - Live
As colours of the cores in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:
The core which is coloured green and yellow must be connected to the terminal in the plug marked with the letter E, or with the earth symbol, (
), or coloured green, or green and yellow.
The core which is coloured blue must be connected to the terminal marked N or coloured black. The core which is coloured brown must be connected to the terminal marked L or coloured red.
The power cord is terminated in a CEE7/7 plug (Continental Europe). The green/yellow wire is connected directly to the unit’s chassis. If you need to change the plug and if you are qualified to do so, refer to the table below.
WARNING: If the ground is defeated, certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between chassis and earth ground. Severe injury or death can then result if the chassis and earth ground are touched simultaneously.
CONDUCTOR |
WIRE COLOR |
||
|
|
Normal |
Alt |
L |
LIVE |
BROWN |
BLACK |
N |
NEUTRAL |
BLUE |
WHITE |
|
|
|
|
E |
EARTH GND |
GREEN-YELLOW |
GREEN |
AC Power Cord Color Coding
Safety Instructions (German)
Gerät nur an der am Leistungsschild vermerkten Spannung und Stromart betreiben.
Sicherungen nur durch solche, gleicher Stromstärke und gleichen Abschaltverhaltens ersetzen. Sicherungen nie überbrücken.
Jedwede Beschädigung des Netzkabels vermeiden. Netzkabel nicht knicken oder quetschen. Beim Abziehen des Netzkabels den Stecker und nicht das Kabel enfassen. Beschädigte Netzkabel sofort auswechseln.
Gerät und Netzkabel keinen übertriebenen mechanischen Beaspruchungen aussetzen.
Um Berührung gefährlicher elektrischer Spannungen zu vermeiden, darf das Gerät nicht geöffnet werden. Im Fall von Betriebsstörungen darf das Gerät nur Von befugten Servicestellen instandgesetzt werden. Im Gerät befinden sich keine, durch den Benutzer reparierbare Teile.
Zur Vermeidung von elektrischen Schlägen und Feuer ist das Gerät vor Nässe zu schützen. Eindringen von Feuchtigkeit und Flüssigkeiten in das Gerät vermeiden.
Bei Betriebsstörungen bzw. nach Eindringen von Flüssigkeiten oder anderen Gegenständen, das Gerät sofort vom Netz trennen und eine qualifizierte Servicestelle kontaktieren.
Safety Instructions (French)
On s’assurera toujours que la tension et la nature du courant utilisé correspondent bien à ceux indiqués sur la plaque de l’appareil.
N’utiliser que des fusibles de même intensité et du même principe de mise hors circuit que les fusibles d’origine. Ne jamais shunter les fusibles.
Eviter tout ce qui risque d’endommager le câble seceur. On ne devra ni le plier, ni l’aplatir. Lorsqu’on débranche l’appareil, tirer la fiche et non le cäble. Si un cäble est endommagé, le remplacer immédiatement.
Ne jamais exposer l’appareil ou le cäble ä une contrainte mécanique excessive.
Pour éviter tout contact averc une tension électrique dangereuse, on n’oouvrira jamais l’appareil. En cas de dysfonctionnement, l’appareil ne peut être réparé que dans un atelier autorisé. Aucun élément de cet appareil ne peut être réparé par l’utilisateur.
Pour éviter les risques de décharge électrique et d’incendie, protéger l’appareil de l’humidité. Eviter toute pénétration d’humidité ou fr liquide dans l’appareil.
En cas de dysfonctionnement ou si un liquide ou tout autre objet a pénétré dans l’appareil couper aussitôt l’appareil de son alimentation et s’adresser à un point de service aprésvente autorisé.
Safety Instructions (Spanish)
Hacer funcionar el aparato sólo con la tensión y clase de corriente señaladas en la placa indicadora de características.
Reemplazar los fusibles sólo por otros de la misma intensidad de corriente y sistema de desconexión. No poner nunca los fusibles en puente.
Proteger el cable de alimentación contra toda clase de daños. No doblar o apretar el cable. Al desenchufar, asir el enchufe y no el cable. Sustituir inmediatamente cables dañados.
No someter el aparato y el cable de alimentación a esfuerzo mecánico excesivo.
Para evitar el contacto con tensiones eléctricas peligrosas, el aparato no debe abrirse. En caso de producirse fallos de funcionamiento, debe ser reparado sólo por talleres de servicio autorizados. En el aparato no se encuentra ninguna pieza que pudiera ser reparada por el usuario.
Para evitar descargas eléctricas e incendios, el aparato debe protegerse contra la humedad, impidiendo que penetren ésta o líquidos en el mismo.
En caso de producirse fallas de funcionamiento como consecuencia de la penetración de líquidos u otros objetos en el aparato, hay que desconectarlo inmediatamente de la red y ponerse en contacto con un taller de servicio autorizado.
Safety Instructions (Italian)
Far funzionare l’apparecchio solo con la tensione e il tipo di corrente indicati sulla targa riportante i dati sulle prestazioni.
Sostituire i dispositivi di protezione (valvole, fusibili ecc.) solo con dispositivi aventi lo stesso amperaggio e lo stesso comportamento di interruzione. Non cavallottare mai i dispositivi di protezione.
Evitare qualsiasi danno al cavo di collegamento alla rete. Non piegare o schiacciare il cavo. Per staccare il cavo, tirare la presa e mai il cavo. Sostituire subito i cavi danneggiati.
Non esporre l’apparecchio e il cavo ad esagerate sollecitazioni meccaniche.
Per evitare il contatto con le tensioni elettriche pericolose, l’apparecchio non deve venir aperto. In caso di anomalie di funzionamento l’apparecchio deve venir riparato solo da centri di servizio autorizzati. Nell’apparecchio non si trovano parti che possano essere riparate dall’utente.
Per evitare scosse elettriche o incendi, l’apparecchio va protetto dall’umidità. Evitare che umidità o liquidi entrino nell’apparecchio.
In caso di anomalie di funzionamento rispettivamente dopo la penetrazione di liquidi o oggetti nell’apparecchio, staccare immediatamente l’apparecchio dalla rete e contattare un centro di servizio qualificato.
®
PLEASE READ THIS FIRST!
Manual
The Operating Manual contains instructions to verify the proper operation of this unit and initialization of certain options. You will find these operations are most conveniently performed on the bench before you install the unit in the rack.
Please review the Manual, especially the installation section, before unpacking the unit.
Trial Period Precautions
If your unit has been provided on a trial basis:
You should observe the following precautions to avoid reconditioning charges in case you later wish to return the unit to your dealer.
Note the packing technique and save all packing materials. It is not wise to ship in other than the factory carton. (Replacements cost $35.00).
(1)Avoid scratching the paint or plating. Set the unit on soft, clean surfaces.
(2)Do not cut the grounding pin from the line cord.
(3)Use care and proper tools in removing and tightening screws to avoid burring the heads.
(4)Use the nylon-washered rack screws supplied, if possible, to avoid damaging the panel. Support the unit when tightening the screws so that the threads do not scrape the paint inside the slotted holes.
Packing
When you pack the unit for shipping:
Tighten all screws on any barrier strip(s) so the screws do not fall out from vibration.
Wrap the unit in its original plastic bag to avoid abrading the paint.
Seal the inner and outer cartons with tape.
If you are returning the unit permanently (for credit), be sure to enclose:
•The Manual(s)
•The Registration Card
•The Line Cord
•All Miscellaneous Hardware (including the Rack Screws)
•The Extender Card
•The COAX Connecting Cable
Your dealer may charge you for any missing items.
If you are returning a unit for repair, do not enclose any of the above items.
Further advice on proper packing and shipping is included in Section 5: Troubleshooting.
Trouble
If you have problems with installation or operation:
(1)Check everything you have done so far against the instructions in the Manual. The information contained therein is based on our years of experience with OPTIMOD and broadcast stations.
(2)Check the other sections of the Manual (consult the Table of Contents and Index) to see if there might be some suggestions regarding your problem.
(3)After reading the section on Factory Assistance, you may call Orban Customer Service for advice during normal California business hours. The number is (1) 510/351-3500.
®
MAINTAINING 8200 SECURITY
Important: Ensure 8200 security by making it standard policy for each 8200 user to manually re-enable lockout when finished with normal operation.
If your 8200 uses security pascodes and TIMEOUT TO AUTO LOCK is OFF (as set in the SET PASCODE screen), the last successful pascode entry defines the current security level. Until lockout is re-enabled, subsequent users with a lower security level will have access to more functions than they should.
Therefore, we recommend that each user re-enable lockout mode when finished with normal operation. Re-enabling lockout ensures that each user is allowed to enter a pascode to have access to the correct amount of functions for which their pascode was previously assigned.
If a previous user does forget to re-enable lockout, simply complete the following steps:
If the IDLE G/R screen does not appear, press ESC repeatedly until you see it.
Hold down the ESC button, while pressing HELP button.
With 8200 lockout now re-enabled, enter a valid pascode and continue with normal operation.
Manual Addendum
8200 Version 3.0 Upgrade
For OPTIMOD-FM 8200 Digital
8200 Version 3.0 Manual Addendum
New Format Presets
Insert the following page, titled “New Format Presets In Version 3.00,” into your 8200 Operation Manual, in Section 3, directly after the blue-tabbed “About Processing Structures” page, at page 3-9.
There are 21 new format-specific presets, each named for a programming format. There are two Urban/Rap presets, for instance, that add bottom-end slam to the sound. Three new Rock presets add punch and sizzle while Adult Contemporary and Country presets balance warmth and clarity, with up-front vocals that stand out. There are also presets for Pop, Classical, Instrumental, Jazz, Folk/Traditional, News, and Sports. There are even two Oldies presets that ensure consistent sound balance with material from different eras. Programmed by Bob Orban and Greg Ogonowski, each preset has full LESS-MORE capability.
Multi-Band Controls
Insert the following “New Multi-Band Features For Version 3.00” pages into your 8200 Operation Manual, in Section 3, at the end of the discussion on “The Multi-Band Structure,” directly preceding the red-tabbed “Screen Displays” page.
New controls include: High Frequency Coupling, Multi-Band Output Mix controls, Bass Clip Threshold, and Phase Rotator In/Out. The range for the existing Final Clip Drive has also been extended.
D-O Status Enable?
[Yes] or [No]
For 8200s equipped with the 8200 D/SRC, the 8200's controls now include a switch that allows you to defeat Orban's special implementation of AES/EBU status bits which are used to control Orban 8208 and 8218 Stereo Encoders. This special implementation may be defeated to accommodate certain digital STLs that misinterpret these status bits.
Beginning with V 1.20 software and revision 3.0 of the 8200D/SRC Digital I/O board, the 8200 set the emphasis bits in the AES/EBU status bits (byte 0, bits 2 through 4) according to an Orban proprietary standard that extends the AES/EBU official definition. The Orban standard allows the 8200 to automatically set the 8218 (and 8208) Stereo Encoder's emphasis/deemphasis to complement the 8200's emphasis/de-emphasis.
I-2 MANUAL ADDENDUM |
Orban |
Byte 0 Bits 2-4 |
AES/EBU Definition |
8200 Implementation |
8218 Response |
000 |
not indicated |
not indicated |
applies FM pre-emphasis |
001 |
undefined |
undefined |
doesn't alter emphasis |
010 |
undefined |
undefined |
doesn't alter emphasis |
011 |
undefined |
undefined |
doesn't alter emphasis |
100 |
no emphasis |
no emphasis |
applies FM pre-emphasis |
101 |
undefined |
J.17+FM pre-e* |
applies J.17 de-emphasis |
110 |
50/15µs |
FM pre-e* |
doesn't alter emphasis |
111 |
J.17 |
J.17 |
applies J.17 de-emphasis |
|
|
|
and FM pre-emphasis |
* FM pre-emphasis is 50 or 75µs
Since the implementation of the Orban standard, some digital STLs were released that misinterpret these status bits. Some respond to the AES/EBU emphasis bits (110) by applying an EIAJ (50/15uS) shelving de-emphasis. This will cause an audible (10.5 dB) loss of high frequencies. Version 3.00 software allows the user to enableor disable the Orban implementation of status bits. When disabled, the 8200 sends status bits identifying that emphasis is “not indicated,” which ensures that the affected digital STLs will not inappropriately apply EIAJ de-emphasis.
When these digital STLs are used in combination with an 8200 and 8218 (or 8208), DO STATUS ENABLE must be set to No, and the 8218 (or 8208), cannot utilize the “AES determines emphasis” feature.
PC Security Enable
[On] or [Off]
The OPTIMOD 8200 with software Version 3.00 or higher, can be controlled with a computer utilizing RS-232 and the Orban supplied 8200PC software for Microsoft Windows, or through binary commands.
The Orban 8200PC software offers full access to all 8200 features, while the binary communications method can only recall presets.
When set to On (default), this control allows remote control of the 8200 through RS-232 communications, only with the Orban supplied 8200PC software for Microsoft Windows. Access to the 8200 is the same as under Version 1.2x.
When set to Off, this mode disables all password protection entirely. PC access using binary commands is allowed for recalling presets only. Complete control by 8200PC is still allowed, however password protection is
OPTIMOD-FM 8200 V3.00 UPGRADE |
MANUAL ADDENDUM I-3 |
disabled. Please note that in this mode, unauthorized access is possible, so take measures to insure that a secure link is used to the 8200. Concurrent 8200PC and binary communications method is not possible.
The binary communications method is intended to be used primarily by programmers for third-party software development. Orban Customer Service will supply a developer's white paper upon request. We cannot, however, provide any technical support for third-party software.
New Format Presets In Version 3.00
The 21 named format presets in Version 3.00 are entirely new. They exploit new Version 3.00 features, including the OUTPUT MIX controls for the 5-Band Limiter and the HIGH FREQUENCY COUPLING control. They apply appropriate amounts of BASS, PRESENCE, and BRILLIANCE equalization.
Of these 21 presets, five are duplicates because we felt that they were appropriate for more than one format. So there are actually 16 distinct and different presets. Each preset has full LESS-MORE Capability. The table below shows the presets, including the source presets from which they were taken and the nominal LESS-MORE setting of each preset.
Many of the presets come in several “flavors,” like “dense,” “medium,” and “open.” These refer to the density produced by the processing. “Open” uses SLOW multi-band release time, “Medium” uses MEDIUM-SLOW release, and “Dense” uses MEDIUMFAST. FAST release is only used in the NEWS/TALK and SPORTS presets.
Important! These presets are only suggestions. Try using the LESS-MORE control to trade off loudness against processing artifacts and side effects. Once you have used LESS-MORE, save your edited preset as a USER PRESET.
Do not be afraid to experiment with presets other than the ones named for your format if you think these other presets have a more appropriate sound. Also, if you want to finetune the frequency balance of the programming, feel free to enter FULL CONTROL and make small changes to the BASS, PRESENCE, and BRILLIANCE controls. Remember to do this after you have decided on a LESS-MORE setting that's right for you. Once you have edited a preset using FULL CONTROL, LESS-MORE is no longer available for that edited preset. (Of course, LESS-MORE is still available for the unedited preset if you want to go back to it. There is no way you can erase or otherwise damage the factory presets. So feel free to experiment.)
I-4 MANUAL ADDENDUM |
Orban |
## |
PRESET NAME |
SOURCE PRESET |
NORMAL |
|
|
|
|
|
LESS-MORE |
||
|
|
____ |
__ |
||
FB |
GENERAL-MEDIUM |
ADLT CONTEMP-MED |
5.0 |
|
|
FC |
GENERAL-OPEN |
ADLT CONTMP-OPEN |
5.0 |
|
|
FD |
URBAN/RAP-DENSE |
URBAN/RAP-DENSE |
7.0 |
|
|
FE |
URBAN/RAP-MEDIUM |
URBAN/RAP-MEDIUM |
7.0 |
|
|
FF |
ROCK-DENSE |
ROCK-DENSE |
7.0 |
|
|
FG |
ROCK-MEDIUM |
ROCK-MEDIUM |
7.0 |
|
|
FH |
ROCK-OPEN |
ROCK-OPEN |
7.0 |
|
|
FI |
ADLT CONTEMP-MED |
ADLT CONTEMP-MED |
5.0 |
|
|
FJ |
ADLT CONTMP-OPEN |
ADLT CONTMP-OPEN |
5.0 |
|
|
FK |
COUNTRY-MEDIUM |
ADLT CONTEMP-MED |
5.0 |
|
|
FL |
COUNTRY-OPEN |
ADLT CONTMP-OPEN |
5.0 |
|
|
FM |
POP-DENSE |
POP-DENSE |
5.0 |
|
|
FN |
POP-MEDIUM |
POP-MEDIUM |
5.0 |
|
|
FO |
POP-OPEN |
POP-OPEN |
5.0 |
|
|
FP |
JAZZ |
JAZZ |
5.0 |
|
|
FQ |
INSTRUMENTAL |
JAZZ |
5.0 |
|
|
FR |
OLDIES-DENSE |
OLDIES-DENSE |
7.0 |
|
|
FS |
OLDIES-OPEN |
OLDIES-OPEN |
7.0 |
|
|
FT |
FOLK/TRADITIONAL |
POP-MEDIUM |
5.0 |
|
|
FU |
NEWS/TALK |
NEWS/TALK |
5.0 |
|
|
FV |
SPORTS |
SPORTS |
5.0 |
|
|
OPTIMOD-FM 8200 V3.00 UPGRADE |
MANUAL ADDENDUM I-5 |
ROCK: The ROCK presets are designed for a bright high end and punchy low end (although not as exaggerated as the URBAN/RAP presets). There is enough presence energy to ensure that vocals stand out. A modest amount of HIGH FREQUENCY COUPLING allows reasonable amounts of automatic HF equalization (to correct dull program material), while still preventing exaggerated frequency balances and excessive HF density. These presets are appropriate for general rock and contemporary programming. For Contemporary Hit Radio (CHR) we recommend the DENSE or MEDIUM versions. For Album-Oriented Rock (AOR) use ROCK-MEDIUM or OPEN, although you might prefer the more conservative Adult Contemporary presets here.
URBAN/RAP: The URBAN/RAP presets are similar to the ROCK presets, but with more bass. They use the 3-pole (18dB/octave) shape on the bass equalizer. They are appropriate for Urban, Rap, Black, R&B, Dance and other similar formats.
ADLT CONTEMP: The Adult Contemporary presets are a compromise between ROCK and POP. They have a gentle bass and treble lift, along with enough presence energy to help vocals to stand out. This preset is also used for COUNTRY, and is a useful candidate for AOR formats.
POP: POP is a more conservative preset designed for a mellow, open high end. There is substantial HIGH FREQUENCY COUPLING to ensure that the high frequencies do not become dense. This is an ideal preset for formats designed primarily for women listeners (who, by and large, dislike hyped treble) or for any preset designed for long time-spent- listening formats because of its open, clean sound, which leads to very low listener fatigue. Because of its conservative nature, this preset is also used for the FOLK/TRADITIONAL preset.
OLDIES: OLDIES is similar to ROCK except HIGH FREQUENCY COUPLING is less. This allows the preset to do substantially more automatic equalization than ROCK, making recordings of different eras more uniform. OLDIES-OPEN might be a useful alternative to FOLK/TRADITIONAL if the recordings being played are very inconsistent in frequency balance.
JAZZ: JAZZ is quite similar to POP, and is specifically tailored toward stations that play mostly instrumental music. It has a relatively mellow high end and produces very low listening fatigue.
NEWS/TALK: This preset is quite different from the others above. It is based on the FAST 5 Band Release Time setting, so it can quickly perform automatic equalization of substandard program material, including telephone. It is very useful for creating a uniform, intelligible sound from widely varying source material, particularly source material that is “hot from the field” with uncontrolled quality.
SPORTS: Similar to NEWS/TALK except the AGC RELEASE TIME is slower and the GATE THRESHOLD is higher. This recognizes that most sports programming has very low signal-to-noise ratio due to crowd noise and other on-field sounds, so the preset does not pump this up as the NEWS/TALK preset would tend to do.
I-6 MANUAL ADDENDUM |
Orban |
New Multi-Band Features For Version 3.00
High Frequency Coupling Control (Band 3&4 Coupling)
High Frequency Coupling couples a certain percentage of the Band 3 gain control signal into Bands 4 and 5. This forces Bands 4 and 5 to follow the gain reduction in Band 3 to a user-adjustable extent. Because Band 3 has a slower release time than Bands 4 and 5, this results in a more open high end. It also limits the amount of dynamic HF boost that the processing can produce.
Even with the control at 100%, Bands 4 and 5 are still active and will produce further gain reduction if this is necessary to prevent distortion. So in this mode they are acting as a high frequency limiter.
Multi-Band Mix Controls (Band 1-5 Out Mix dB)
All of the equalization described so far occurs before the multi-band limiter. The advantage of this is that the multi-band limiter protects you against overloads or program material with unusual spectral balance, which might otherwise combine with your equalization curve to cause unpleasant distortion or coloration. In particular, it protects the final clipper from being overdriven.
However, the downside is that the “automatic equalization” effect of the multi-band limiter tends to fight equalization settings that you made with the various equalizer controls, reducing their effect. We have therefore provided a mix control with a ±3dB range at the output of each limiter in the five-band limiter.
These act as fixed equalizer controls because no gain reduction occurs after them. They determine the overall target spectral balance of the processing when the multi-band limiter exhibits substantial amounts of gain reduction. In popular music formats this is almost always the case.
Please note that these controls are very risky. The thresholds of OPTIMOD-FM's 5-band limiter and multi-band clippers were tuned at great length to ensure that under virtually no circumstances would program material come along to cause unpleasant clipping distortion in the following clippers. By adjusting the multi-band mix controls, you upset this carefully tuned relationship. Therefore, program material can come along that causes unexpected (and sometimes very nasty-sounding) distortion because the final clippers are being overdriven. This will occur if the program material in question has a significant part of its energy concentrated in a frequency band that is being boosted.
In general, it is safe to turn a given output mix control down (in the 0 to –3dB range) without danger of introducing distortion. However, you will lose loudness. If you turn an output mix control up (+0.5 to +3dB range), you should listen at great length to a wide variety of program material to make sure that nothing falls apart due to excessive
OPTIMOD-FM 8200 V3.00 UPGRADE |
MANUAL ADDENDUM I-7 |
clipping distortion. If it does, you will need to back off the control in question and/or back off the Final Clip control.
If you turn up the control for Band 1 (below 100 Hz), you may wish to turn down the Bass Clip Thrsh dB control by an equal amount. This will preserve the relationship between the bass multi-band clipper and the final clipper.
Bass Clip Threshold Control (Bass Clip Thrsh dB)
The 8200 uses Orban's patented multi-band distortion-cancelling clipper system to achieve a low peak-to-average ratio without creating audible distortion due to clipping. The bass clipper is part of this system. It is embedded in the multi-band crossover so that harmonics created by clipping are rolled off by part of the crossover filters. The threshold of this clipper is ordinarily set between 4dB and 6dB below the threshold of the final clipper in the processing chain, depending on the setting of the LESS-MORE control in the parent preset upon which you are basing your full control adjustments. This provides headroom for contributions from the other four bands, so that bass transients don't smash against the final clipper and “shut it down,” momentarily blocking any other program material and causing a sound similar to very hard pumping. The bass clipper also protects against overt intermodulation distortion between the bass and higher frequency program material.
Some 8200 users feel that the bass clipper unnecessarily reduces bass punch at its factory settings. To accommodate these users, Version 3.00 software makes the threshold of the bass clipper a user-adjustable control. The range (with reference to the final clip threshold) is 0 to –6dB. As you raise the threshold of the clipper you will get more bass but also more distortion and pumping. Be careful when setting this control; do not adjust it casually. Listen to program material with heavy bass combined with spectrally sparse midrange material (like a singer) and listen for IM distortion induced by the bass' pushing the midrange into the final clippers. In general, unless you have a very good reason to set the control elsewhere, we recommend leaving it at the factory settings, which were determined as a result of exhaustive listening tests with many types of critical program material.
Phase Rotator In/Out
The multi-band limiter receives the output of a three-pole phase rotation circuit. This has a flat frequency response but a phase response that is nonlinear with frequency. Its purpose is to make voice waveforms symmetrical, which minimizes clipping distortion and makes voice (particularly live voice from microphone feeds) sound cleaner.
The downside of the phase rotator is that it subtly reduces the clarity and definition of music. While this is unlikely to be heard on the vast majority of consumer radios, many people listening with audiophile-quality gear will be able to perceive it. We therefore have provided the ability to bypass this circuit, leaving only the phase rotation intrinsic to the crossover topology in the multi-band limiter. This residual phase rotation is
I-8 MANUAL ADDENDUM |
Orban |
approximately 25% of the total phase rotation that occurs when the three-pole phase rotator is active.
When you bypass the phase rotator, many voices sound audibly harsher because more clipping occurs. This can be particularly problematical if you are processing heavily for loudness. If you notice increased harshness on voice, we recommend that you use external phase rotation (three cascaded poles, each tuned to 200Hz) in your live microphone chain and in your production studio mic chain. If this is impractical, we recommend leaving the 8200's built-in phase rotator active because we find the increased voice distortion caused by leaving it off substantially more objectionable than the slight loss of clarity that results when it is active.
Refer to the “Phase Rotator For Microphone Channel” diagram, on the following page.
OUTPUT
|
5% |
|
|
|
OPTIMOD-FM 8200 V3.00 UPGRADE |
|
|
|
|
10K1% |
1K |
1/4TL074 |
0.01uF10% |
50V |
|
10K1% |
|
82K5% |
|
10K1% |
|
1/4TL074 |
0.01uF10% |
50V |
|
10K1% |
|
82K5% |
|
10K1% |
|
1/4TL074 |
0.01uF10% |
50V |
|
10K1% |
|
82K5% |
|
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|
1/4TL074 |
5% |
|
|
|
|
82K |
|
Figure 1: Phase Rotator for Microphone Channel
MANUAL ADDENDUM I-9
monolithicceramiccapacitors. |
|
NE5532s. bypassingbecomemorecritical. |
|
F50V |
|
pairof |
supply |
UnityGain,LineLevel. Bypass(+)and(−)PowerLeadsofTL074toGroundwith0.1µ |
Operatefrom+15Vand−15VDCpower. |
ManyaudioopampscouldbesubstitutedfortheTL074,likea |
Ifyousubstituteahigh-speedamplifier,layoutandpower |
Notes: |
|
|
|
INPUT
I-10 MANUAL ADDENDUM |
Orban |
Final Clip Drive Control
Version 3.00 extends the range of the FINAL CLIP DRIVE control by 3dB at the lower end of its range. This means that you can turn down the clipping by 3dB by comparison to earlier versions of 8200 software. The purpose of this extension is to allow users in ITU countries to comply with the requirements of ITU-R Recommendation BS.412-7 if they are required to do so by the regulatory authority in their country.
Based on measurements with a wide variety of program material using the RundfunkBetriebstechnik, GMBH Hubmess System MPX-EBENE (a modulation analyzer), we have developed the following formula for ensuring compliance. First, you must start with one of the basic 2-Band or 5-Band factory presets with LESS-MORE at 1.0. You must then edit the preset (using FULL CONTROL) to set the FINAL CLIP DRIVE to the following settings:
Preset |
LESS-MORE |
Final Clip Drive |
DA 5B SLOW |
1.0 |
–1.5 |
DB 5B-MEDIUM SLOW |
1.0 |
–1.5 |
DC 5B-MEDIUM FAST |
1.0 |
–3.0 |
DD 5B-FAST |
1.0 |
–2.5 |
CA 2B-NOR PROCESSED |
1.0 |
–1.5 |
To ensure that you meet the requirements, do not increase the settings of these controls beyond the settings provided in LESS-MORE = 1.0: RELEASE TIME, CLIPPING, and
MULTI-BAND DRIVE.
Note: The BB (Purist Classical) and BA (Purist Processed) presets will comply with a CLIPPING setting of –2 or lower. There is no need to reset the FINAL CLIP DRIVE control when using these presets.
The Protection Limiter Structure will not comply and cannot be adjusted to do so. However, you can use the BB (Purist Classical) preset instead and set its CLIPPING control to –2.
If you want to use any of the new presets in Version 3.00, you should follow a similar formula. Set them for LESS-MORE = 1.0. Then edit the FINAL CLIP DRIVE control for – 1.5, except for “dense” presets (FINAL CLIP DRIVE = –3.0) and News or Sports (FINAL CLIP DRIVE = –2.5). While we have not specifically measured all of the Version 3.00 presets using this formula and therefore cannot guarantee compliance, we believe that compliance is nevertheless very likely.
OPTIMOD-FM 8200 V3.00 UPGRADE |
MANUAL ADDENDUM I-11 |
8200 Software History
Version 3.00
•Replaces the original factory “format” presets FB - FO with new format presets FBFV.
•Adds new Multi-Band Control: High Frequency Coupling.
•Removes EBS Test Mode.
Version 2.00
•Multi-Band Controls
New controls include: Multi-Band Output Mix controls, Bass Clip Threshold, and Phase Rotator In/Out. The range for the existing Final Clip Drive has also been extended.
•D-O Status Enable?
[Yes] or [No]
For 8200s equipped with the 8200 D/SRC, the 8200's controls now include a switch that allows you to defeat Orban's special implementation of AES/EBU status bits which are used to control Orban 8208 and 8218 Stereo Encoders. This special implementation may be defeated to accommodate certain digital STLs that misinterpret these status bits.
•PC Security Enable
[On] or [Off]
When set to Off, password security is disabled, allowing access to 8200 via remote PC, utilizing custom-developed software, and limited to recalling presets only. When set to On, 8200 functions the same as under Version 1.2x, with full password security.
Version 1.20
•8200PC Remote Control Software for Windows™
•TIME TO SCREEN SAVER default setting is now 1:00 HRS. Removed Off setting.
•AGC IDLE GR (for Two-Band Normal, Two-Band Purist and Five-Band processing) is now a value proportional to the AGC DRIVE, instead of a fixed value of–10dB.
•With Two-Band Normal, LF noise is no longer detectable at low drive levels.
•For Five-Band processing, bass boost at low signal levels has been eliminated.
I-12 MANUAL ADDENDUM |
Orban |
•A-O 100% LVL dB resolution has been increased for more accurate level adjustment.
•Cleaner Audio When Switching Between Analog and Digital Source Material.
•Pressing DISABLE EBS now eliminates the EBS TEST button from the
RECALL PRESET screen.
•AGC DRIVE Control adjustable range changed to –10 to 25; previously 0 to 25.
Version 1.10
•Software to control 8200D/SRC Digital Sampling Rate Converter.
•D-O 100% LVL dB maximum level increased from –2.75dBFS to 0dBFS; resolution has been increased for more accurate level adjustment.
Version 1.00
Calibration Controls
•Adds Transmitter Overshoot and SCA Modulation Compensation.
•Adds control for Stereo Encoder Modulation Type: [STEREO], [MONO FROM L], [MONO FROM R].
•Input Analog or Digital.
•Clock Sync To, for synchronizing the 8200's real-time clock to the AC line frequency (LINE) or to the internal crystal oscillator (XTAL).
•Adds Pilot On/Off control.
Time and Date Controls
•Daylight Savings Time.
•Screen Saver. Other Changes
•Additional Remote Control Interface functions. Complete list includes: ## PRESET NUMBER AND NAME, ST STEREO, ML MONO FROMLEFT, MR MONO FROM RIGHT, ET EXIT TEST, TX1 MOD COMP %, TX2 MOD COMP %, SC1 MOD COMP %, SC2 MOD COMP %, IA INPUT ANALOG, ID INPUT DIGITAL, RH RESET CLOCK TO HOUR, RM RESET CLOCK TO MIDNIGHT.
•EBS tone preset for use with the USA Emergency Broadcast System.
OPTIMOD-FM 8200 V3.00 UPGRADE |
MANUAL ADDENDUM I-13 |
•Security PASCODE authorized for SYSTEM SETUP.
•Protection Structure pre-emphasis filters are now phase-linear.
•Adds Protection Limiter control: 30 Hz HPF switch to set the 30Hz high-pass filter prior to the limiter in or out of the signal path.
•Adds Two-Band Purist Structures: 2B-PUR PROCESSED, 2B-PUR CLASSICAL.
•Adds Two-Band control: AGC SWITCH.
•Additional Multi-Band Controls, including: AGC SWITCH, HIGH FREQUENCY CLIPPING, PRESENCE, LOW BASS BOOST, MID BASS BOOST, BASS COUPLING, DJ BASS BOOST, NOISE REDUCTION THRESHOLD, 30Hz HPF (Highpass Filter) switch.
•EXIT TEST Test preset now stored as the BACKUP preset.
I-14 MANUAL ADDENDUM |
Orban |
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Operating Manual
OPTIMOD-FM 8200
Digital Audio Processor
®
WARNING
This equipment generates, uses, and can radiate radio-frequency energy. If it is not installed and used as directed by this manual, it may cause interference to radio communication. This equipment complies with the limits for a Class A computing device, as specified by FCC Rules, Part 15, Subpart J, which are designed to provide reasonable protection against such interference when this type of equipment is operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference. If it does, the user will be required to eliminate the interference at the user’s expense.
WARNING
“This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.” “Le present appareil numerique n’emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques (de las class A) prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.”
IMPORTANT
Perform the installation under static control conditions. Simply walking across a rug can generate a static charge of 20,000 volts. This is the spark or shock you may have felt when touching a doorknob or some other conductive item. A much smaller static discharge is likely to completely destroy one or more of the CMOS semiconductors employed in OPTIMOD-FM or the software module. Static damage will not be covered under warranty.
There are many common sources of static. Most involve some type of friction between two dissimilar materials. Some examples are combing your hair, sliding across a seat cover or rolling a cart across the floor. Since the threshold of human perception for a static discharge is 3000 volts, many damaging discharges will not even be noticed.
Basic damage prevention consists of minimizing generation, discharging any accumulated static charge on your body or work station and preventing that discharge from being sent to or through an electronic component. A static grounding strap (grounded through a protective resistor) and a static safe workbench with a conductive surface should be used. This will prevent any buildup of damaging static.
The OPTIMOD-FM 8200 Digital Audio Processor is protected by U.S. patents 4,249,042; 4,208,548; 4,460,871; and U.K. patent 2,001,495. Other patents pending.
Orban and Hadamard Transform Baseband Encoder are registered trademarks.
All trademarks are property of their respective companies.
This manual is part number 95100-301-01
Copyright 1999/2000
1525 Alvarado Street, San Leandro, CA 94577 USA
Phone: (1) 510/351-3500; Fax: (1) 510/351-0500; E-mail: custserv@orban.com; Web: www.orban.com
Orban
OPTIMOD-FM 8200
Operating Manual
page contents
1-1 Section 1: Introduction
OPTIMOD-FM 8200 DIGITAL Audio Processor
ESCape and HELP
Presets in the 8200
Input/Output Configurations
Location of OPTIMOD-FM
About Transmission Levels and Metering
Line-Up Facilities
Internal Clock
Future Updates
Warranty, Feedback
2-1 Section 2: Installation
Installation of 8200
Installation of Studio Level Controller
System Setup Using QUICK SETUP
System Setup Using Individual Calibration Controls
Time and Date
Security and Pascode Programming
Remote Control Interface Programming
3-1 Section 3: Operation
8200 Controls and Meters Introduction to Processing Customizing the 8200’s Sound About the Processing Structures Factory Programming Presets The Protection Limiter Structure The Two-Band Structures
The Multi-Band Structure 8200 Screen Displays
Orban
OPTIMOD-FM 8200
Operating Manual
page contents
4-1 Section 4: Maintenance
Routine Maintenance
Getting Inside the Chassis
In-System Testing (“Proof of Performance”)
Field Audit of Performance
Field Alignment
5-1 Section 5: Troubleshooting
Problems and Possible Causes
Troubleshooting IC Opamps
Technical Support
Factory Service
Shipping Instructions
6-1 Section 6: Technical Data
Specifications
Circuit Description
Parts List
Schematics, Assembly Drawings
Abbreviations
|
8200 PC Operating Manual |
1-1 |
Section 1: Introlduction |
2-1 |
Section 2: Installation |
3-1 |
Section 3: Operation |
4-1 |
Section 4: Troubleshooting |
A1-1 |
Appendix 1: Cables (Diagrams) |
A2-1 |
Appendix 2: Modems |
INDEX on next page
Index
!
4000 2-37
464A 2-27, 2-31
8100A1 1-16 8100AST 1-16 8100AXT2 1-16
A
abbreviations 6-81
AC line cord wire standard 2-13 AGC
(external) setup 2-27 defeating 3-28, 3-40 external 1-16
analog I/O 6-10
analog input clip level 2-57 analog input ref level 2-58 analog input sensitivity 2-7 analog input termination 2-6 arrow keys 2-25, 3-3 assembly drawings 6-45 audible distortion 3-5, 3-7, 5-2 audible noise 5-3
audio
connections 2-16 input 2-16, 6-2 output 2-17, 6-3
AUTOMATION buttons 3-60 Daily Events 3-60 Date Events 3-60 flow chart 3-61
screens 3-59 - 3-60
B
balance adjust 2-58 balanced
inputs 2-16
output transformer 2-17 Bass Coupling 3-39
bass equalization 3-37 block diagram 6-46 brightness 3-39 brilliance 3-38
buttons
AUTOMATION 3-60 ESC 2-25, 3-3 HELP 2-25, 3-3
IDLE G/R LOCKOUT 3-42, 3-76 IDLE I/O LOCKOUT 3-42, 3-76 MODIFY FULL CONTROL 3-51 MODIFY FULL G/R 3-51 MODIFY LESS-MORE 3-51 RECALL PRESET 3-46
SAVE CHANGES 3-57 SET PASCODE 3-68, 3-71 SYSTEM SETUP 3-64
buzzes 5-2 bypass preset 1-20
C
cable 2-14, 2-16
cable shielding 2-16 - 2-17 calibration 3-64
chassis
getting inside 4-3 ground 2-19
circuit boards access to 4-3 front panel 4-3
circuit description 6-9 circuit ground 2-19 CIT25 2-12, 6-7 cleaning 4-2
clicks 5-2
clipping 3-5, 3-19, 3-36, 3-39 transient 3-18
clock
internal 1-21, 2-61 common-mode rejection 2-16, 2-19 composite
isolation transformer 2-12, 6-7 metering 6-19
COMPOSITE LEVEL control 2-25, 3-3 composite level output 1/2 2-25, 3-3 composite metering 1-19
composite output impedance 2-5 compression 3-5, 3-35 computer interface 1-10, 2-14 connectors
audio 2-16 CONTRAST
control 2-25, 3-3 Control board 6-21 control knob
settings 2-25, 3-3 controls 2-24, 3-3
COMPOSITE LEVEL 1 2-25, 3-3 COMPOSITE LEVEL 2 2-25, 3-3 CONTRAST 2-25, 3-3
PILOT LEVEL 2-25, 2-60, 3-3 SEPARATION 2-25, 3-3
customer service 5-8
D
D-connector board 4-6, 6-26 date set 2-65
daylight savings time 2-65 dBm (defined) 6-81
dBu (defined) 6-81 density 3-25, 3-35 - 3-36 digital i/o 1-8
digital input ref level 2-61
digital input/output connectors 2-19 disassembly 4-3
distortion 3-19, 3-36, 3-39, 5-2 DJ Bass Boost 3-39 Downward Expander 3-39 dsp boards 6-19
dull sound 5-4
E
EBS
modify screen 2-62 EBS MODIFY screen 3-67 EBS tones
failure 5-5
escape button 2-25, 3-3 exciter interface 2-21 EXIT TEST
button 3-46
F
factory service 5-9 factory test presets 1-7 field audit 4-15
final clipper drive 3-28, 3-38 flow charts
AUTOMATION 3-61
I/O CALIB CONTROL 3-67 I/O CALIB I/O 3-67
IDLE G/R LOCKOUT 3-77
IDLE I/O LOCKOUT 3-77
MODIFY FULL CONTROL 3-54 - 3-55 MODIFY FULL G/R 3-54 - 3-55 MODIFY LESS-MORE 3-52 - 3-53 RECALL PRESET 3-47
SET PASCODE 3-74
SYSTEM SETUP 3-65 FM Smart Clipper 3-18
frequency response verification 4-15 front panel 2-24, 3-3
fuse 2-12
G
gain reduction 3-8, 3-15, 3-25, 3-35, 3-40 metering 3-40
gate compressor 3-28 gating 3-18, 3-25, 3-28, 3-38 grounding 2-19 - 2-20, 5-2
difficult situations 2-12 ground loop 2-12
H
harshness 5-4
HELP button 2-25, 3-3 HF limiting 3-20, 3-27 high-frequency
clipping 3-39 equalization 3-38 limiting 3-20, 3-27
high-pass filter 3-17, 3-29, 3-40 hum 5-2
I
I/O CALIB CONTROL flow chart 3-67
I/O CALIB I/O
flow chart 3-67 IDLE G/R LOCKOUT
buttons 3-42, 3-76 flow chart 3-77
screens 3-41, 3-75 - 3-76 IDLE I/O LOCKOUT
buttons 3-42, 3-76 flow chart 3-77
screens 3-41, 3-75 - 3-76 impedance 2-16 - 2-17
input
balanced 2-16 buffer 6-10
filter board 4-5, 6-25 impedance 2-16 level 2-16
overload point 2-16 sensitivity 2-7 termination 2-6 unbalanced 2-16
input level line-up 1-18
input level meters 1-19 input select A or D 2-61 inspection of contents 2-3 installation 2-1
internal clock 1-21, 2-61
J jumpers
access to 4-3 analog I/O card 2-6 input sensitivity 2-7 options 2-6
L
L-R null 4-10
level calibration 2-28 limiting 3-5
high-frequency 3-20, 3-27 line voltage 2-12
line-up tones failure 5-5
location 2-13 location of 8200 1-12
loudness 3-5, 3-25, 3-35 - 3-36, 3-38
]
M
MAIN TO SUB switch 2-25, 3-3 maintenance, routine 4-2 metering
composite 6-19 meters
PPM 2-50 studio 1-17 VU 2-50
MODIFY
screens 3-49 MODIFY FULL CONTROL
buttons 3-51
flow chart 3-54 - 3-55 screens 3-50
MODIFY FULL G/R buttons 3-51
flow chart 3-54 - 3-55 screens 3-50
MODIFY LESS-MORE buttons 3-51
flow chart 3-52 - 3-53 screens 3-49
modulation
cannot control 5-2 mono
performance verification 4-8 mono/stereo select 2-60 multi-band structure 3-31
bass 3-37 brightness 3-39 clipping 3-36, 3-39 compression 3-35
customizing settings 3-34 density 3-35
distortion 3-36, 3-39 equalization 3-37 - 3-38 high-frequency 3-38 loudness 3-35 - 3-36 on-air 3-33
setup 3-35 multi-band structures
bass coupling 3-39 gating 3-38
loudness, density 3-35
N
nastinesses, various 3-24 noise 6-2
noise and distortion verification 4-15
O
OPERATE switch 2-25, 3-3 ordering parts 6-28
output
impedance 2-17 level 2-17 unbalanced 2-17
output level meters 1-19 overshoot 5-2
overshoot compensator 2-59 overshoot reduction 1-16
P
packing for shipment 5-9 packing list 2-3
parts
list 6-27 ordering 6-28
pascode forgotten 5-7
peak control 3-26
peak control criteria 1-11 peak modulation
cannot control 5-2 phase-linear processing 3-21 physical dimensions 6-4
PILOT LEVEL control 2-25, 2-60, 3-3 pilot, ultrastable 1-9
power 2-12 cord 2-12
LED 2-25, 3-3 requirements 6-4 supply 4-6, 6-25
PPM meter 2-50 pre-emphasis 3-5
selection 2-57 problems 5-2
processing structures 3-9 processing trade-offs 3-6 programming presets 3-9 - 3-10 proof of performance 4-7 protection limiter structure 3-15
distortion 3-19 high-frequency 3-20 setup 3-15
protection structures high-pass filter 3-15
Q
quick setup 2-42, 3-65
R
rack-mounting unit 2-13 rear panel 4-4
rear panel connections 2-11 RECALL PRESET
buttons 3-46 flow chart 3-47
screen 3-45 - 3-46 registration card 1-22 remote control 1-10, 2-14
remote control programming 2-75 return authorization 5-9
RF suppression 5-2 RFI 2-12, 2-19, 4-3 filter 2-12
S
SAVE CHANGES button 3-57 screen 3-57 schematics 6-45
screen displays 3-41 screen saver 2-67 screens
AUTOMATION 3-59 - 3-60
IDLE G/R LOCKOUT 3-41, 3-75 - 3-76 IDLE I/O LOCKOUT 3-41, 3-75 - 3-76 MODIFY 3-49
MODIFY FULL CONTROL 3-50 MODIFY FULL G/R 3-50 MODIFY LESS-MORE 3-49 RECALL PRESET 3-45 - 3-46 SAVE CHANGES 3-57
SET PASCODE 3-68, 3-71 SYSTEM SETUP 3-63 - 3-64
SEPARATION control 2-25, 3-3 service 5-9
SET PASCODE buttons 3-68, 3-71 flow chart 3-74 screen 3-68, 3-71
setup
expanded 2-55 quick 2-42 system 2-41
shipping damage 2-3
instructions 5-9 shrillness 5-4
sinewaves, modulation of 3-19 soft keys 2-25, 3-3
software updates 1-21 source material 3-8 specifications 6-2
spectral gain intermodulation 3-17 speech
bass boost 3-39 stereo
encoder board 6-15 interference 5-5 performance verification 4-9
stereo/mono select 2-60 STL systems 1-13 structures
multi-band 3-31 protection limiter 3-15 two-band 3-21
studio chassis 2-46
SUB TO MAIN switch 2-25, 3-3 subcarrier input 1-8, 2-18 switches
MAIN TO SUB 2-25, 3-3 OPERATE 2-25, 3-3 SUB TO MAIN 2-25, 3-3 TEST 2-25, 3-3
SYSTEM SETUP 2-41 buttons 3-64
flow chart 3-65 screens 3-63 - 3-64
T
technical support 5-8 telephone/post lines 6-2 temperature 2-13 TEST switch 2-25, 3-3 time set 2-65
tone generator internal 1-20
troubleshooting 5-1 IC opamps 5-8
two-band structure setup 3-24
two-band structures 3-21 g/r metering 3-24 gating 3-28
high-frequency limiting 3-27 high-pass filter 3-29 loudness, density 3-25 peak control 3-26
setup 3-23
spectral balance 3-26
U unbalanced
input 2-16 load 2-17
user tone preset 1-20
V voice
bass boost 3-39 VU meter 2-50
W
warranty 6-8 whistle, on air 5-4
X
XLR connectors 1-7, 2-16
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OPTIMOD-FM 8200 |
INTRODUCTION 1-1 |
Section 1
Introduction
page contents
1-3 OPTIMOD-FM 8200 DIGITAL Audio Processor
1-6 ESCape and HELP
1-6 Presets in the 8200
1-7 Input/Output Configurations
1-11 Location of OPTIMOD-FM
1-17 About Transmission Levels and Metering
1-17 Figure 1-1: Absolute Peak Level, VU and PPM Reading
1-19 Line-Up Facilities
1-21 Internal Clock
1-21 Future Updates
1-22 Warranty, Feedback
1-2 INTRODUCTION |
OPTIMOD-FM 8200 |
ARROW KEYS |
POWER LED |
CONTROL KNOB
SOFTKEY |
BUTTONS |
HELP |
BUTTON |
ESC |
BUTTON |
SCREEN |
CONTRAST CONTROL |
SWITCH
TEST
CONTROLS
ENCODER
STEREO
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