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Copyright 1995 by SMART Devices Inc.

5945 Peachtree Corners East 

Norcross, GA 30071-1337

Table of Contents

SECTION 1

INTRODUCTION ..............................................................2

SECTION 2

FEATURES.......................................................................2

SECTION 3

CARD DESCRIPTION ......................................................3

SECTION 4

INSTALLATION.................................................................8

WIRING HOOKUP INSTRUCTIONS

.................................8

SECTION 5

CALIBRATION ..................................................................10

- A CHAIN CALIBRATION

.................................................10

- B CHAIN CALIBRATION

.................................................12

SECTION 6

OPERATING INSTRUCTIONS.........................................14

SECTION 7

SCHEMATICS ..................................................................15

LIMITED WARRANTY:  SMART products and accessories are warranted against malfunction or failure due to defects in workmanship or
materials for a period of one year from the date of shipment. If a problem occurs during the warranty period, the unit will be repaired, or
replaced at our option, without charge for materials or labor.  If air freight is requested by the dealer, the difference between air and surface
charges will be billed to the dealer. This limited warranty does not cover products that have been abused, altered, modified, or operated in
other than specified conditions.  Prior factory approval is required on all returns.  Returned equipment or defective parts must be shipped
freight prepaid to us by the dealer or customer.

Our limited warranty does not cover damages resulting 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, including warranties of
merchantability or fitness for a particular purpose.

RETURN POLICY:  Factory authorization MUST be obtained before returning any product.  A 15% restocking charge will be issued on unused
equipment (in original box) that is returned for credit. Credit is issued to the dealers account.  The credit may be used against future purchases
and no cash transactions are offered.  All returns must be shipped freight prepaid by the dealer.  Equipment returned without a factory RA
(Return Authorization) will be refused.

SMART products are designed to deliver unsurpassed quality in workmanship and perfor-
mance.  The following information gives detailed instructions on the installation and opera-
tion of the SMART MODIIB processor.  We strongly encourage new owners of the MODIIB to
thoroughly read this entire manual before placing their new SMART product into service.
This will ensure that the MODIIB will be operated properly to give the superior performance
that it was designed to deliver.

For service or installation assistance, please call our 

Technical Support Department between the hours of 

8 a.m-5 p.m. E.S.T., Mon.-Fri.

1-800-45-SMART

Summary of Contents for MOD IIB

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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