Orban 414A Omvormer
Fabrikant:
Geen foto beschikbaar!
Misschien kan je een foto uploaden voor de
Orban 414A ?
Als je nog andere handleidingen hebt voor de
Orban 414A kun je hier de bestanden uploaden .
Model:
414A
Datum:
1984
Categorie:
Groep:
Omschrijving:
Compressor / Limiter
Informatie
The Orban Model 412A.414A Compressor/Limiter is a
general-purpose AGC device of highest professional quality.
It can perform compression and peak limiting simultaneously
with unusual freedom from side-effects.
The flexibility and natural sound of the 412A.414A make it
applicable in virtually all areas of professional audio:
recording studios, broadcasting, sound reinforcement, public
address, motion picture sound, etc. However, it is not
optimized for overmodulation protection of broadcast
transmitters; the Orban OPTIMOD-AM, -FM, or -TV should be
used in such applications.
The product is available in both single- (412A, and dual-
(414A, channel versions. (For clarity, only the 414A will be
referenced in this manual.) The dual-channel version is
equipped with a coupling switch which forces the gain of
both channels to be equal, tracking the channel demanding
the greatest amount of gain reduction. This preserves
correct imaging in stereo applications. However, the stereo
coupling switch does not couple the operating controls, and
these are ordinarily set identically in stereo operation.
(If they are set non-identically, the gain of both channels
will still be equal, tracking the channel demanding the
highest amount of G/R. However, the control circuitry will
respond differently to material in the two channels even if
a mono feed is used. This might be useful for special effects.)
Attack and release times are both program-controlled, but
can be scaled faster or slower by means of front-panel
controls. This results in maximum flexibility, plus
extremely natural sound over a wide range of control settings.
The 414A Compressor/Limiter is equipped with
electronically-balanced input and output, and is compatible
with the levels and impedances found in both professional
and semi-professional applications. RF suppression applied
to the input, output, and power leads enables use in
relatively high RFI fields such as those common in broadcasting.
Because the front-panel controls are marked in a familiar
way, you may be tempted to jump right in without reading the
manual. However, if you take the time to review the
Description And Function Of Front-Panel Controls and
Operating Instructions in Part C, you will find that there
is "more than meets the eye" inside the 414A
and that the
time you take reading the manual will be well-rewarded by a
greater understanding of the unit's potential.
Handleidingen type:
Service-en gebruikershandleiding
Pagina’s:
45
Grootte:
3.99 Mbytes (4188234 Bytes)
Taal:
english
Herziening:
Handleidingen-ID:
95042-000-04
Datum:
1984 01 01
Kwaliteit:
Gescand document alle leesbaar.
Upload datum:
2017 10 24
MD5:
53e5f013a606a0495c285ead21565e2f
Downloads:
1157
Informatie
1 PART A: INTRODUCTION
I Performance Highlights 3 Front-Panel Description
3 Rear-Panel Description
5 PART B: INSTALLATION
5 Mechanical Installation
5 Installation Of Options
5 Fig. B-l: Wiring Of Optional Connectors
6 Electrical Installation 6 AC Power
6 Fig. B-2: AC Line Cord Color Coding
6 Control Loop Bass Rolloff Jumper
7 Fig. B-3: Control Loop Bass Rolloff Strapping 7 Audio
Connections
7 Input
7 Output
8 Preferred Wiring
8 Fig. B-4: Grounding
8 Table 1: General Input/Output Connection Rules
9 Wiring The 414A With Single-Conductor Shielded Cable
II PART C: OPERATING INSTRUCTIONS
11 Quick Operating Guide
12 Fig. C-l: Output Level As A Function Of Input Level For
Various Settings Of The RATIO Control
15 Description and Function of Front-Panel Features
17 Using The Compressor/Limiter
17 Some Specific Applications
17 Sidechain Processing
17 De-Essing
18 Frequency-Selective Limiting
18 Stereo And Multichannel Operation
18 Speech-Activated Ducking Of Music
21 PART D: MAINTENANCE
21 Introduction
21 ALIGNMENT AND PERFORMANCE VERIFICATION
21 General
21 Power Supply
22 Signal Processing Circuitry 25 MAINTENANCE AND SERVICE
25 Preventive Maintenance
25 Corrective Maintenance
25 Service Access
26 Lamp Replacement
26 Component Replacement
26 Replacement Parts
27 Replacement Of Components On Printed Circuit Boards
27 Removal
27 Installation
27 Troubleshooting IC Opamps
28 Factory Service
29 Shipping Instructions 29 CIRCUIT DESCRIPTION 29 General
29 Input Buffer
30 Voltage-Controlled Amplifier (VCA) Operation
30 Current-Controlled Gain
31 Exponential Converter
31 Compressor/Limiter Circuitry
31 General
31 Rectifier With Threshold
33 Timing Module
33 Threshold-Setting Circuitry and RATIO Control
33 Gain Reduction Meter
34 Line Amplifier
34 Power Supply
35 APPENDIX A: INTERCONNECTIONS AND GROUNDING
35 Driving The Input From High-Impedance And/Or High-Level
Sources
35 Grounding
37 APPENDIX B: SPECIFICATIONS
39 PARTS LIST
44 Vendor Codes
45 ASSEMBLY DRAWING
46 SCHEMATIC DIAGRAM