Panasonic SA-AK250EG Manuals

Manuals and User Guides for Panasonic SA-AK250EG. We have 1 Panasonic SA-AK250EG manual available for free PDF download: Service Manual

Panasonic SA-AK250EG Service Manual (100 pages)

Brand: Panasonic | Category: Stereo System | Size: 16 MB

Table of Contents
2
Safety Precautions
4
General Guidelines
4
Caution for AC Mains Lead
5
Before Repair and Adjustment
5
Protection Circuitry
6
Safety Part Information
6
Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices
6
Handling Precautions for Traverse Unit
8
Grounding for Electrostatic Breakdown Prevention
8
Precaution of Laser Diode
10
About Lead Free Solder (Pbf)
11
Service Caution Based on Legal Restrictions
11
General Description about Lead Free Solder (Pbf)
11
Accessories
12
Operating Procedures
13
Main Unit Key Buttons Operations
13
Remote Control Key Buttons Operations
13
New Features
14
Using the Music Port
14
Self Diagnosis and Special Mode Setting
15
Service Mode Summary Table
15
Special Mode Table 1
15
Reliability Test Mode (CRS1 Mechanism)
18
Error Code Table Display
20
Assembling and Disassembling
25
Caution
25
Disassembly Flow Chart
26
Main Parts Location
27
Disassembly of Top Cabinet
28
Disassembly of CD Changer Unit (CRS1)
28
Disassembly of Rear Panel
29
Disassembly of Main P.C.B
30
Disassembly of Transformer P.C.B
30
Disassembly of Power P.C.B
31
Disassembly of Front Panel Unit
31
Disassembly for Panel P.C.B
32
Disassembly of Tact Switch P.C.B
33
Disassembly of Deck Mechanism Unit
33
Disassembly of Deck P.C.B
33
Disassembly of Traverse Unit
34
Disassembly for Deck Mechanism
35
Disassembly of Deck Mechanism P.C.B
38
Disassembly of Cassette Lid
39
Rectification for Tape Jam Problem
39
Service Fixture and Tools
41
Service Positions
41
Checking and Repairing of Main P.C.B
41
Checking and Repairing of Transformer P.C.B
42
Checking and Repairing of Panel, Deck & Deck Mechanism P.C.B
42
Checking and Repairing of Power P.C.B
43
Procedure for Checking Operation of Individual Parts of Deck Mechanism Unit
44
Operation Check with Cassette Tape
44
Operation Check Without Cassette Tape
44
Measurement and Adjustments
46
Cassette Deck Section
46
Tape Speed Adjustment
46
Bias Voltage Check
47
Bias Frequency Check
47
Voltage and Waveform Chart
48
CD Servo P.C.B
48
Deck P.C.B. & Deck Mechanism P.C.B
48
Main P.C.B
49
Panel P.C.B. and Transformer P.C.B
50
Power P.C.B
50
Waveform Chart
51
Wiring Connection Diagram
52
Block Diagram
53
CD Servo Diagram
53
Deck/ Deck Mechanism Diagram
54
Main Diagram
55
Panel Diagram
57
Power Diagram
58
Transformer Diagram
59
Notes of Schematic Diagram
61
Schematic Diagram
63
A) CD Servo Circuit
63
Main Circuit
64
C) Panel Circuit
68
D) Sub Panel Circuit & (G) Deck Mechanism Circuit
69
E) Power Circuit
70
F) Deck Circuit
72
H) Transformer Circuit
73
Printed Circuit Board
75
A) CD Servo P.C.B., (F) Deck P.C.B. & (G) Deck
76
B) Main P.C.B
77
C) Panel P.C.B
78
D) Sub Panel P.C.B
79
E) Power P.C.B
80
H) Transformer P.C.B
81
Illustration of Ics, Transistors and Diodes
83
Terminal Function of IC's
84
IC7001 (MN6627954MA) Servo Processor,Digital Signal Processor/Digital Filter and D/A Converter
84
IC7002 (BA5948FPE2) IC 4CH Drive
85
IC2801 (C2CBYY000482) System Microprocessor IC
85
Exploded Views
87
Cabinet Parts Location
87
Deck Mechanism Parts Location (RAA4403-S)
89
Packaging
90
Replacement Parts List
91

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Panasonic SA-AK250EG Service Manual (100 pages)

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