Dolby Laboratories 430 Operations Instructions

430 SERIESBACKGROUND NOISESUPPRESSOR SYSTEMInstallation andOperating InstructionsMAIN

2-24 High-frequency and Low-frequency Suppression ControlsThe left-hand slider controls the amount of low level LF attenuation the unit applies; the r

2-3It is usually better to locate the console channel fader after the Model 430 unit. Gain riding the Model 430input can allow dialog to move into th

3-1SECTION 3INSTALLATION3.1 Control unit and Suppressor FramesThe installation of Model 430 series consists of plugging together the component parts a

3-2Similarly there is a slot in the back of each two-channel frame and the other connectors should be mated,(bump upwards) with these observing the wa

3-33.2 Console Mounting of Remotes.If optional Cat. No. 428 remote housings (holding up to three remote control units each) are not used, theremote co

3-43.4 Panel Cut-Out Templates for Cat. No. 428 RemotesThe templates below can be removed from this manual and used to cut/drill blank console panels.

3-53.5 Regulatory NoticesWARNING: Check that the unit has been set to the correct supply voltage and that the correctfuse is installed. To reduce the

3-6GBFDIIMPORTANT SAFETY NOTICEThis unit complies with the safety standard IEC65. To ensure safe operation and to guardagainst potential shock hazard

4-1SECTION 4THEORY OF OPERATIONBased on the Dolby SR spectral recording system, the Model 430 series design incorporates two separatenoise reducing ba

4-2In situations where the interference is broadband, both the LF and HF bands can be used in varyingamounts. The two expander sections are in series

INSTALLATION ANDOPERATING INSTRUCTIONSFOR430 SERIES BACKGROUNDNOISE SUPPRESSOR SYSTEMDolby Laboratories IncorporatedU.S.A. 100 Potrero Avenue, San Fr

5-1SECTION 5SCHEMATIC DIAGRAMS- Contact Dolby LaboratoriesFigure 5-1 Power Supply ...

A-1APPENDIXA1 Plugging PrecautionsAny Cat. No. 413 suppressor module can be removed and replaced with the power applied. However it willonly take on

DOLBY 430 DOLBY 430 DOLBY430 BACKGROUNDNOISESUPRESSORBACKGROUND NOISE SUPPRESSORBACKGROUND NOISE SUPPRESSORThe Dolby 430 Series is a backgroundnoise s

Signal ProcessingIndependent low- and high-frequency stages withmaximum noise suppression of approximately16 and 18 dB, respectively Signal Connection

iTABLE OF CONTENTSINTRODUCTIONSECTION 1 UNIT CONFIGURATIONS1.1 The Model 430 System ...

iiINTRODUCTIONThe Model 430 Series is a playback-only noise reduction system intended primarily to reduce unwantedambient noise from location recordin

1-1SECTION 1UNIT CONFIGURATIONS1.1 The Model 430 SystemThe Model 430 is a modular system which has a control unit containing the power supply andmicr

1-21.2 AccessoriesThe figure below shows the various 430 Series accessories available. These items can be ordered toexpand an existing system.A1F4356

2-1SECTION 2OPERATION2.1 CONTROLSOperation of the Model 430 is very simple. The basic controls and indicators mounted on the Cat. No. 429remote for e