Bose Powered Acoustimass 30 Manuals

Manuals and User Guides for Bose Powered Acoustimass 30. We have 1 Bose Powered Acoustimass 30 manual available for free PDF download: Service Manual

Bose Powered Acoustimass 30 Service Manual

Bose Powered Acoustimass 30 Service Manual (49 pages)

Brand: Bose | Category: Speakers | Size: 1 MB

Table of Contents

Table of Contents
2
Safety Information
3
Electrostatic Discharge Sensitive (ESDS) Device Handling
4
Specifications
5
General Operation and Block Diagram Overview
6
Theory of Operation
6
- Surround Decoder
  7
- Microcontroller
  8
- Power Supply
  8
- Audio Chain
  9
- Center Channel Frequency Response
  10
- Surround Channel Frequency Response
  10
- Bass and Left/Right Channel Frequency Response
  11
- Dynamic Equalizer Frequency Response
  11
- Surround Detector
  12
- Decoder Gain Cell
  13
- Decoder Matrix
  13
- Bass Power Amplifier
  14
- Satellite Equalizaton
  14
- Bass Channel Equalization
  14
- Satellite Power Amplifiers
  15
- Voltage at Collector of Q381 (Bass Amplifier)
  16
- Treble Control Frequency Response
  16
- Compressor Operation
  17
- Protection Circuits
  17
- Simplified Block Diagram of Shared 2 Channel Class-G Amplifier
  19
- PCB Block Diagram
  20
- Surround Decoder Block Diagram
  21
- Cover Removal
  22
Disassembly/Assembly Procedures
22
- Cover Replacement
  23
- Main PCB Assembly Removal
  23
- Main PCB Assembly Replacement
  23
- Amplifier PCB Removal
  23
- Cover Assembly
  24
- Module Enclosure Disassembly
  24
- Heatsink/Amplifier PCB Subassembly
  25
- Module Assembly Exploded View
  25
- Amplifier PCB Replacement
  26
- Transformer Removal
  26
- Woofer Replacement
  27
- Woofer Harness Hookup
  27
- Woofer Removal
  27
- Transformer Replacement
  27
- Cube Array (Satellite) Procedures
  28
- Grille Assembly Removal
  28
- Grille Assembly Replacement
  28
- Twiddler Removal
  28
- Potentiometer Settings
  29
- Turn-On
  29
- Manual Test Mode
  29
Test Set-Up Parameters
29
Decoder Test
30
Test Procedures
30
- Frequency Response
  31
- Amplifier Test
  32
- Small Signal Distortion (.5 W Output)
  32
- Large Signal Distortion
  32
- Compressor Test
  32
- Bass Module Sweep Test
  33
- Air Leak Test
  33
- Tone Control Test
  33
Part List Notes
34
PCB Identification
34
Main Part List
35
Bass Module Exploded View
36
Electrical Part List
37
Satellite Part List
43
Packing Part List
44
Packing Diagram
45
Integrated Circuits
46

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