Allen_&_Heath_DR66_Mix_Processor_Service_Manual电路图.pdf

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1、DR66 6 In 6 OUT AUDIO SYSTEM 24-Bit Digital Mix Processor SERVICE MANUAL PUBLICATION AP3137 RadioFans.CN 收音机爱 好者资料库 DR66 SERVICE MANUAL HOW TO USE THIS MANUAL This service manual is published in two sections: Section A:contains the INSTALLATION / USER GUIDE which includes details of INSTALLATION, CA

2、LIBRATION and OPERATION for the DR6 66 6. Section B:contains the SERVICE INFORMATION which includes details of SPARE PARTS & ASSEMBLIES and CIRCUIT BOARD DIAGRAMS for the DR6 66 6. copyright 1998 ALLEN & HEATH. All rights reserved. Publication.AP3137 Issue 1. RadioFans.CN 收音机爱 好者资料库 DR66 SERVICE MAN

3、UAL SECTION A A DR6 66 6 INSTALLATION / USER GUIDE A CAUTION Refer all installation, calibration and service work to qualified service personnel. RadioFans.CN 收音机爱 好者资料库 DR66 SERVICE MANUAL SECTION B DR66 SERVICE INFORMATION B CAUTION Refer all installation, calibration and service work to qualified

4、 service personnel. Warning to the Service Engineer Allen & Heath warns that any unauthorised changes or modifications to the DR66 unit may invalidate the legal compliance of the unit and could void the users authority to operate the equipment. 2Section B DR66 SERVICE MANUAL CONTENTS INTRODUCTION &

5、WARNINGS.3-4 ORDERING A DR6 66 6 UNIT, OPTIONS & DOCUMENTATION.5 ORDERING SPARE ASSEMBLIES & SPARE PARTS .6-7 BLOCK DIAGRAM.8 FRONT PANEL CIRCUIT BOARD COMPONENT IDENT.AG3131 FRONT PANEL CIRCUIT DIAGRAM .C3131 CONVERTER CIRCUIT BOARD COMPONENT IDENT.AG3135 CONVERTER CIRCUIT DIAGRAM sheet 2 of 9 (lin

6、e inputs 1 to 4).C3135 CONVERTER CIRCUIT DIAGRAM sheet 3 of 9 (mic inputs 1 & 2) .C3135 CONVERTER CIRCUIT DIAGRAM sheet 4 of 9 (balanced line outputs 1 & 2).C3135 CONVERTER CIRCUIT DIAGRAM sheet 5 of 9 (balanced line outputs 3 & 4).C3135 CONVERTER CIRCUIT DIAGRAM sheet 6 of 9 (balanced line outputs

7、5 & 6).C3135 CONVERTER CIRCUIT DIAGRAM sheet 7 of 9 (digital circuits & connectors).C3135 CONVERTER CIRCUIT DIAGRAM sheet 8 of 9 (codec circuits).C3135 CONVERTER CIRCUIT DIAGRAM sheet 9 of 9 (power supply).C3135 MICROPROCESSOR CPU CIRCUIT BOARD COMPONENT IDENT.AG2604 MICROPROCESSOR CPU CIRCUIT DIAGR

8、AM sheet 2 of 6 (interface) .C2604 MICROPROCESSOR CPU CIRCUIT DIAGRAM sheet 3 of 6 (CPU & memory) .C2604 MICROPROCESSOR CPU CIRCUIT DIAGRAM sheet 4 of 6 (processing engine #1).C2604 MICROPROCESSOR CPU CIRCUIT DIAGRAM sheet 5 of 6 (processing engine #2).C2604 MICROPROCESSOR CPU CIRCUIT DIAGRAM sheet

9、6 of 6 (expander connectors) .C2604 Refer to SECTION A for information on installation, calibration and operation of the DR66. Section B3 DR66 SERVICE MANUAL INTRODUCTION The information presented in this section of the manual is intended for competent technical personnel to carry out service and pr

10、oduct support for the DR66. We assume that the reader is familiar with the related electronic theory and audio terminology, and is able to carry out basic servicing, fault-finding and repair of digital audio equipment of this type. Service personnel should also be familiar with audio systems, mains

11、earthing and power requirements, as well as handling precautions. For information on the installation, operation and application of the DR66 please refer to section A of this manual. Whilst we believe the information in this manual to be reliable we do not assume responsibility for inaccuracies. We

12、also reserve the right to make changes in the interest of further product development. SERVICE AND TECHNICAL SUPPORT Under normal operating conditions the DR66 does not require user maintenance or internal calibration. Any service work required should be carried out by qualified technical personnel

13、only. We are able to offer further product support through our worldwide distribution network. To help us provide an efficient service please quote the unit serial number, the date and place of purchase in any communication regarding this product. SAFETY WARNING Mains electricity is dangerous and ca

14、n kill. Mains voltage is present within the unit. Except for installation and calibration, do not remove any covers with power connected. Do not carry out any work within the unit while it is powered. High voltage components are insulated for safety but should not be touched with power applied. The

15、mains voltage setting is indicated on the AC mains input socket on the rear panel. Check that this matches your local supply. Check your mains wiring and earthing before switching on. DO NOT REMOVE THE MAINS EARTH CONNECTION! The chassis is always connected to mains earth. Audio 0V connects to the c

16、hassis internally. Should problems be encountered with ground loops, operate the audio ground lift switches on other equipment connected to the unit or disconnect the cable screens at one end. Refer to the section on EARTHING in the User Guide. 4Section B DR66 SERVICE MANUAL WARNING There is danger

17、of explosion if the battery is incorrectly replaced. Replace the battery with an Allen & Heath recommended part. Using a different battery, recharging or disassembling the battery may present a danger due to fire or explosion. Dispose of used batteries promptly according to the manufacturers instruc

18、tions. Keep all batteries away from children. IMPORTANT STATIC ELECTRICITY PRECAUTIONS Many of the components in the DR66 are extremely sensitive to static electricity. The following procedures reduce the possibility of damaging components: 1. Before handling any components or touching anything insi

19、de the unit, discharge your bodys static electric charge by touching a grounded (earthed) surface. Wear a grounding wrist strap if one is available. 2. Do not remove parts from their antistatic containers or bags until you are ready to install them. When removing circuit boards (PCBs) or chips from

20、a unit, immediately place them in an antistatic bag. 3. When handling PCBs, hold them by their edges and avoid touching the circuitry. 4. Do not slide PCBs or ICs over any surface. 5. Avoid having plastic, vinyl and foam in your work area. 6. Limiting your movements during service work reduces stati

21、c electricity. Section B5 DR66 SERVICE MANUAL ORDERING A DR66 UNIT To order a new unit please specify the model number and AC mains voltage required. MODEL DESCRIPTION ORDER CODE DR66 6 inputs 6 outputs DR66/volts ORDERING AN OPTION To order an option please specify the model number. DESCRIPTION ORD

22、ER CODE DR128/66 DSPD delay expander card DR1-DSPD DR66 DSP expander card DR66-DSPX DR66 SYSNET option DR66-SNET MANUALS, SOFTWARE AND SUPPORT DOCUMENTATION DESCRIPTION ORDER CODE DR66 User Guide AP3138 DR66 Service Manual AP3137 DR66 Brochure AP3205 DR66 WinDR Disk (1 of 3) 002-272 DR66 WinDR Disk

23、(2 of 3) 002-273 DR66 WinDR Disk (3 of 3) 002-362 SERVICE TOOLS The tools required to service the DR66 range of products are standard to an electronics service workshop and are easily obtainable. The following items are necessary for disassembly and service access: 1-point Crosshead screwdriver (M3,

24、 4AB) AT0004 2-point Crosshead screwdriver (M4, 6AB) AT0002 5mm AF Nutdriver (D type mountings) 6Section B DR66 SERVICE MANUAL ORDERING AN ASSEMBLY The following assemblies for the DR66 are supplied fully tested. Please quote the description and order code for the part required. Printed circuit (PCB

25、) assemblies: DESCRIPTION ORDER CODE DR1 CPU PCB assembly 002-184 DR66 Converter PCB assembly 002-298 Front Panel PCB assembly 002-300 IDC connector harnesses: DESCRIPTION ORDER CODE 26 way Mic / Line harness AL2712 9 way RS232 harness AL3198 16 way LCD display harness AL3144 40 way Audio harness AL

26、3142 9 way CPU power harness AL3141 26 way Front Panel harness AL3143 Ordering a spares kit It is recommended that the spares kit order code 002-293 is held and maintained by the service agent to enable in-field service repairs to the DR66 independent of the ALLEN & HEATH factory. Commonly available

27、 items such as resistors, capacitors, tools and soldering equipment are not included. The contents of the kit are listed below. Individual spare parts may be ordered. Please quote the description and order code for the part required. DESCRIPTION ORDER CODE QTY Fixings: Fastfeet 20mm AK0102 5 Joint B

28、lock Nylon AB0253 5 M3 Half Nut AB0094 5 Nylock Nut M3 AB0102 10 Pillar Snap-in 6mm Nylon AB2233 10 Pillar Snap-in M2.5 x 8mm AB2774 5 Pillar Support 6.4mm Nylon AB2171 5 Screw 4 x 5/16 Poly Pan Pozi Black AB2810 10 Screw 4AB x Pan Pozi Plated AB0252 5 Screw 4AB x 5/16 CSK Pozi Black AB0059 5 Screw

29、4UNC Hex D-Type AB2189 5 Screw M3 x 10mm Pan Pozi Black AB0076 5 Screw M3 x 12 Pan Pozi Black AB0078 5 Screw M3 x 4mm Pan Pozi Black AB0233 10 Screw M6 x 30mm CSK Allen Black AB2327 5 Washer M3 Shakeproof AB0244 5 Section B7 DR66 SERVICE MANUAL Potentiometers, switches and connectors: Button 12.5mm

30、Square Black AJ0348 10 Button Round Black AJ2887 5 Button Round Grey AJ2888 5 Phono Dual PCB Mount AL0556 4 Pot 9mm 5KRD AI8059 2 Switch 2PCO Momentary AL8058 5 XLR 3 Pin Female PCB Mount AL2414 5 XLR 3 Pin Male PCB Mount AL2413 5 LEDs and Semiconductors: IC CMOS 74HC165 AE2749 5 IC CMOS 74HC4094 AE

31、2755 3 IC CMOS 74HCO3 4NAND2 AE0345 2 IC NE5532N OP-AMP AE0221 10 IC RS232 MAX202CPE AE2742 1 IC TL072 OP-AMP AE0046 5 IC TLP521-4A OPTO QUAD AE2748 5 LED 5 x 2mm Tri-colour AE2754 10 Transistor 2SB737 PNP AE8069 5 Transistor BC549 NPN AE0020 5 POWER SUPPLY: Diode SBYV28-100 UltraFast 3.5A AE2947 5

32、IC Regulator 7805 AE0308 5 IC Regulator 7818 AE3155 5 IC Regulator LM2576T-5.0 AE2815 1 Inductor 220uH 3A S/SWITCH AM3153 5 Insulating kit TO220 AA0693 5 Fuse 20mm T2.5A (Battery DC supply) AL0311 5 Mains Fuse 20mm T315mA (UK) AL0349 5 Mains Fuse 20mm T630mA (UK, EU) AL0297 5 Mains lead IEC-2pin EUR

33、O AH0205 - Mains lead IEC-3pin UK AH0206 - Mains lead IEC-3pin US (C33) AH0323 - Transformer 25VA AM3134 - Miscellaneous: DR66 Packing assembly 002-294 - DR66 Acrylic Fascia AA3145 - Rack Mounting brackets (per pair) AA3150-LR - Front panel LCD display AE2734 - EMI filter 470pF 100V AF3107 5 Jumper socket AL0334 10 Inductor 150u 280mA AM2970 5 Battery 3V 180mAh PCBV AP2837 1 8Section B DR66 SERVICE MANUAL DR66 BLOCK DIAGRAM