BBK AV225T Manuals

Manuals and User Guides for BBK AV225T. We have 1 BBK AV225T manual available for free PDF download: Service Manual

BBK AV225T Service Manual (126 pages)

Brand: BBK | Category: Stereo Receiver | Size: 12 MB

Table of Contents
2
Chapter One about Maintenance
5
Safety Precautions
5
Power Supply
5
Precautions for Antistatic
5
About Placement Position
6
Maintenance Method
6
Visualized Method
6
Electric Resistance Method
6
Current Method
6
Cutting Method
6
Element Substitution Method
7
Comparison Method
7
Required Device for Maintenance
7
Chapter Two Operation Instructions
8
Control Button Locations and Explanations
8
Front Panel Illustratlons
9
Rear Panel Illustration
9
Llustrations to the I
9
Asic Operations Remote Control B
10
Urn On/Off this Unit T
10
OTP Function
10
Select Input Sound Source
11
Bass Enhancer
11
Select Sound Field
12
Adjust Volume
13
Adjust Level
13
EQ Function
14
Parameter Processing
15
Adjust Karaoke
16
Tuning Function
17
Other Operations
19
Chapter Three Principle and Servicing
21
Section One Principle of the Player
21
Composition of the Player
21
Function and Features
21
Player Block Diagram
22
The Player Signal Flow Chart
23
Section Two Unit Circuit Principle
24
Volume Board Circuit
24
Signal Processing Board Circuit
27
MCU Board Circuit
29
Control Panel Circuit
33
Power Board Circuit
34
Power Amplifier Board and Protection Circuit
35
MIC, Headphone Board
38
Video In/Out Board Circuit
38
Section Three Servicing Cases
40
Servicing Instances
40
Troubleshooting Process
45
Section Four Servicing Parameters
53
Signal Waveform Diagram
53
Key Point Voltage
60
Section Five Function Introduction to IC
61
Function Introduction to 4558
61
Function Introduction to Pt2399
62
Function Introduction to Cd4051
63
Function Introduction to Cd4052
64
Function Introduction to Cd4053
65
Function Introduction to Sm79164
66
Function Introduction to Pt2308
69
Function Introduction to Pt2222
70
Function Introduction to Lm1875
71
Function Introduction to TDA7265
72
Function Introduction to M62446
73
Function Introduction to AT24C02
74
High-Reliability
75
Function Introduction to L7805
75
Function Introduction to 7812
76
Function Introduction to 7912
76
Function Introduction to LM324
77
Function Introduction to Pt2315
78
Function Introduction to 74VHC245
79
Function Introduction to Cd4094
81
Chapter Four Disassembly and Assembly Process
83
Chapter Cinque PCB Board & Circuit Diagram
91
Section One PCB Board
91
Video Board
91
Volume Board
92
Signal Board
93
Power Board
94
MIC Board
96
Section Two Circuit Diagram
100
Specifications
109
Chart 6 BOM List
109
Olume Board
109
Olume Board Ai Segment V
109
Ignal Disposal Board S
110
Ignal Disposal Board Ai Segment S
112
C Pu Board
114
C Pu Board-Smd
115
Mplifier Board a
116
Urface Control Board S
120
Ideo Input Output Board V
121
Microphone Holder Board
121
Ower Board P
122
R Emote Coneroller
124
Anel Units P
124
Ofeware Program S
125
N Lasel S
125
Supplement Module
125

BBK Categories

DVD Player

TV Automobile Parts LCD TV

Home Theater System

More BBK Manuals

BBK AV225T Manuals

BBK AV225T Service Manual (126 pages)

Table of Contents

Related Products

BBK Categories