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Beocenter 7700
Bang & Olufsen Beocenter 7700 User Manual
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2
Table of Contents
Contents
2
Product Diagram
2
Product View and Parts Identification
3
Block Diagram
4
Schematics
7
PCB Views
12
Measuring Conditions
14
Adjustment of No-Signal-Current
14
Explanation of Pin Designation on the Microcomputer
14
Bottom Chassis Exploded View and Parts List
15
Top Chassis Exploded View and Parts List
16
Chassis, Record Player Exploded View and Parts List
17
Record Player Deck Exploded View and Parts List
18
Tape Deck, Top Exploded View and Parts List
19
Tape Deck, Bottom Exploded View and Parts List
20
PC, Power Amplifier and Power Supply Exploded View and Parts List
21
Speaker Switch and Socket Panel Exploded View and Parts List
21
Master Control Panel Exploded View and Parts List
22
Electrical Adjustments
23
Radio Section Adjustments
23
AM-IF Adjustments
25
Tape Recorder Adjustments
26
Mechanical Adjustments
27
Erase Head Height Adjustment
27
Rewind Adjustment
27
Thrust Roller Thrust Adjustment
27
Record Player Adjustments
28
Lubrication
28
Speed Adjustment
28
Turntable Height Adjustment
28
Pick-Up Height Adjustment
29
Pick-Up Arm Parallelism Adjustment
29
Pick-Up Arm Lowering
29
Antiskating Adjustment
29
Specifications
30
Motor Switch
30
Dismantling
31
Service Tips and Modifications
32
Replacing Dial Lamp
32
Removal of Servicing Hinges
32
Dial Drive
32
Test Routine for Microcomputer
33
Fault-Finding in the Master Control Panel
33
Cabinet Repairs and Panel Replacement
33
Wow Frequencies
33
Insulation Test
34
Changed Attachment of PC Board with Transmission Diodes
34
MIC. Amplifier
34
Final Testing
35
Master Control Panel (MCP)
36
4
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Bang & Olufsen Beocenter 7700 Specifications
General
Brand
Bang & Olufsen
Model
Beocenter 7700
Category
Stereo System
Language
English
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