Dolby Laboratories DP524 S101, DP524 MOTHERBOARD, J103, J105

3-3front, rear, and each of the sides of the unit. The three black screws shouldbe reserved for affixing at the front.

Note The front panel is attached to the top cover by means of 4 screws also affixing the

handles. These do not need to be removed.

By grasping the front panel handles, gently pull the top cover/front panelassembly forward then away towards the rear. Carefully set aside this sub-assembly.Reverse the above procedure when re-assembling the unit.

S101

J200

DP524 MOTHERBOARD

1

[ON]

OFF

Signal Ground to

Chassis Ground Link

[Open]

Linked

J103

J201

J202

J203 J204

J3 J205

J206

RT RD

J209

J210

J207

J208

TR RS

[Terminated (150 ohm)]

Not Terminated

J105

Note: Jumpers J200, 201, 202, 203,204

are not applicable to this product and should

not be disturbed. Leave them in the positions

shown.

MAIN

Contents

Main Page Users' Manual For Model DP524 AC-2 / AC-3 Two-Channel Digital Audio Decoder Dolby Laboratories Incorporated Page TABLE OF CONTENTS Page SECTION 1 INTRODUCTION 1.1 Introduction 1.3 Dolby AC-3 and AC-2 1.4 Data Rates, Sample Rates and Channels 1.5 Regulatory Notices FCC UL UK 1-5 IEC NOTICES Page SECTION 2 APPLICATIONS 2.1 Cable 2.2 Telecommunications Page SECTION 3 PRE-INSTALLATION 3.1 Unpacking 3.2 Inspection 3.2.1 Claims for Shipping Damage 3.3 Fusing Information Main Fuse 3.4 Configuring Jumper Settings Note handles. These do not need to be removed. S101 DP524 MOTHERBOARD 1 J103 J105 3.5 Configuring the Rear Panel DIP Switch S101 3.5.1 Switch nos. 1, 7 & 8 - Test Tone 3.5.2 Switch nos. 2, 5 & 6 Software Download 3.5.3 Switch no. 3 - Digital Output Format Selection 3.5.4 Switch nos. 4, 5 & 6 - Command/Aux Data SECTION 4 INSTALLATION 4.1 Mounting 4.2 Audio Connections 4.2.1 S/PDIF Output - J102 4.2.2 AES/EBU Output - J101 4.2.3 Analog Outputs - J106/7 4.3 Data, Status, and Remote Control Connections 4.3.1 Encoded Data In & Timing - J103 4.3.2 RS-232 (J105) 4.3.3 RS-422 (J106) 4.3.4 Parallel Status and Control (J104) Page 5.1 Front Panel Status Indicators 5.2 Rear Panel Level Controls 5.3 Test Tone Level 5.4 Software Downloading Procedure SECTION 6 INTERFACE SPECIFICATION AND DESCRIPTION 6.1 DP524 Interface Specifications AES/EBU Digital Audio Output, J101 S/PDIF Digital Audio Output, J102 Encoded Data In and Timing, J103, 37-pin D-connector: 6-2 Status / Control, J104, 25-pin D-connector: RS-232 Port, J105 Analog Audio Input, J106 & J107 XLR-type connectors 6.2 RS-449 Interface Description 6.2.1 Functional Description 6.2.2 Interface Timing 6.2.3 Back-to-Back Testing 6.3 Serial Control 6.3.1 System related commands Command $14: Enable/Disable Test Tone Command $18: Return System Status Command $19: Return System Contents Command $1A: Return Current Algorithm Command $1B: Return Current bitrate. 6.3.2 AC-3 Related commands Command $40: High Level Dynamic Range control Command $41: Low Level Dynamic Range control Command $42: Set Compression mode SECTION 7 DP524 SPECIFICATION Specifications 7-2 7-3 General