SMART MOD IIB Скачать руководство пользователя страница 2

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SECTION 1:

INTRODUCTION

The MODIIB Cinema Stereo Processor is a full four
channel system featuring the latest technology in opti-
cal stereo soundtrack reproduction. This advanced
processor comes standard with many features, yet is
easy to operate.

The MODIIB has the ability to play spectral recording
encoded soundtracks with the built-in SR emulation
noise reduction. Digital soundtracks may be processed
in four channel mode. 

Intelligent design, superb sound quality and the many
features push the MODIIB processor into a class all its
own.

To achieve optimum results from your new MODIIB
cinema processor, the theatre engineer installing the
system should be totally familiar with all features and
adjustments. Careful attention to detail and familiarity
with the installation instructions will allow you to
offer a system that has a sound quality second to none.

SECTION 2:

FEATURES

FADER CONTROL:
To begin, the MODIIB has one FILM LEVEL fader that
controls the overall playback level for all six channels.
This master fader is used as the volume control for all
formats except music mode.  The master music level

control is located behind the front panel on the Format
Card.

FORMAT SWITCHING:
The formats available on the MODIIB are Mono, 3-D
Mono, Stereo A, Film SR, Digital and Music. All for-
mats may be manually controlled by green pushbut-
tons on the front panel Format Card. The pushbuttons
are lighted with internal LED’s to indicate which for-
mat is selected. The indicator LED’s can be seen from
a distance so it is not necessary to be near the proces-
sor to verify the status. Format switching is also possi-
ble by connecting an automation or remote switch
contacts to the FORMAT SELECT terminals on the
back of the MODIIB.

SOLAR CELL INPUTS:
The MODIIB has stereo solar cell inputs with electron-
ic changeover for two projectors. Each pair of stereo
cell inputs is a quasi-balanced circuit which helps to
reduce any interference pickup on the solar cell leads.

DIGITAL INPUTS:
The MODIIB is fully compatible with popular digital
formats (i.e. DTS, Dolby Digital, etc.). The MODIIB
will easily process the stage, split surround and sub-
woofer channels from an external digital decoder.

MUSIC INPUTS:
The MODIIB is designed to process both stereo and
mono music sources from tape, CD or cartridge play-
ers. The music processing circuitry contains a simple
matrix which derives four channels of sound from a
stereo music source.

Installation and Service Manual

MODIIB Digital/Optical Cinema Processor

Содержание MOD IIB

Страница 1: ...sulting from accident misuse or abuse lack of responsible care or failures not attributable to manufacturing defects except as provided herein SMART Devices Inc makes no warranties express or implied...

Страница 2: ...ont panel on the Format Card FORMAT SWITCHING The formats available on the MODIIB are Mono 3 D Mono Stereo A Film SR Digital and Music All for mats may be manually controlled by green pushbut tons on...

Страница 3: ...00 mA The backup capability is a stan dard feature on the MODIIB and is not an extra cost option as it is on other systems MODULAR CIRCUITRY The MODIIB system is housed in a card cage rack mount assem...

Страница 4: ...Electronic changeover circuitry between stereo pairs is built on the card to allow use in dual projector booths If the MODIIB is installed in a single projector booth leave the second projector input...

Страница 5: ...rol the top LED array The bottom three DIP switches 3 1 control the bottom LED array A DIP switch to the right means that it is on and the corresponding LED array will indicate the selected channel or...

Страница 6: ...nts leave the pot in the mid position All pots are the single turn type ONE OCTAVE EQUALIZER CARDS MOD4x324 This card is the standard EQ for the Stage Channels and the Left and Right Surround Channels...

Страница 7: ...non sync sound from a standard two channel music tape or CD player MOTHERBOARD SRS5x370 SECTION 4 INSTALLATION INSTRUCTIONS PROCESSOR PLACEMENT IN THE RACK Before mounting the MODIIB processor in the...

Страница 8: ...eft channel out of phase with the right This is a common error so verify correct wiring before proceeding CHANGEOVER WIRING OF DUAL PROJECTOR PREAMPS Changeover between projectors is done electronical...

Страница 9: ...e different digital decoders available on the mar ket See below for specific pinout configuration The DIGITAL DB25 inputs Pin 1 Left Pin 3 Center Pin 5 Right Pin 6 Left Surr Pin 7 Right Surr Pin 8 Sub...

Страница 10: ...calibrated microphone dual trace oscilloscope multimeter a tuning wand and appropriate test loops A CHAIN CALIBRATION The A chain is usually considered to be the signal path originating from the sola...

Страница 11: ...imum flat high frequency response Do not over adjust the slit loss cor rection in an effort to obtain extended response This will result in an undesirable frequency response peak Note While adjusting...

Страница 12: ...GENER ATOR CARD and an EXTENDER CARD for perform ing the calibration and testing of the MODIIB Note Make sure the SMART Pink Noise Generator Card has the following minor modification There must be a j...

Страница 13: ...nd boosted by as much as 7 dB in each of the 1 3 octave bands without creating the above problems The use of bass and tre ble controls on the equalizer has also been avoided to further minimize phase...

Страница 14: ...AIN CALIBRATION This completes the B chain cali bration SECTION 6 OPERATING INSTRUCTIONS The MODIIB system is one of the easiest systems to operate The Manager Operator of the sound booth should revie...

Страница 15: ...and is activated by the NORMAL BACKUP switch located just above the Format pushbuttons SECTION 7 SCHEMATICS Format Card SRS5x390 page 16 Pushbutton Card MD2BX392 page 17 Dual Projector Preamp Card MOD...

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