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Panasonic Manuals
Stereo System
SA-AK28
Service manual
Table Of Contents - Panasonic SA-AK28 Service Manual
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Operating instructions manual
(32 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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Table of Contents
Specifications
1
Contents
2
Before Repair And Adjustment
2
Protection Circuitry
3
Accessories
3
Handling Precautions For Traverse Deck
3
Grounding For Electrostatic Breakdown Prevention
4
Caution When Replacing The Traverse Deck
4
Precaution Of Laser Diode
5
Use Of Caution Labels
5
Caution For Ac Mains Lead
6
Before Use
6
How To Replace The Fuse
6
Operation Procedures
7
Front Panel Controls
7
Main Unit
7
Cneter Console
7
Remote Control
8
Operation Checks And Main Component Replacement Procedures
9
Gear For Servicing (Jig) Information
9
Attention Servicer
9
Checking Procedure For Each Major Pcb
10
Checking Of The Main, Panel, Deck And Power Pcb
10
Checking For Main Pcb, Panel Pcb And Deck Pcb
10
Main Component Replacement Procedures
11
Replacement Of The Traverse Deck
11
Checking For Power Pcb
11
Replacement Of The Power Amplifier Ic
12
Installation Of The Cd Servo Pcb After Replacement
12
Disassembly And Assembly Of The Traverse Unit
14
Replacement Of Traverse Unit
14
Disassembly And Assembly Of The Disc Tray
15
Self-Diagnostic Display
17
How To Enter The Self-Diagnostic Function
17
Cassette Mechanism Test (For Error Code H01, H02, H03, F01, F02)
17
Cd Mechanism Test (F15, F26, F16, F17, F27, F28, F29, H15)
17
Description Of Error Code
18
Error Detection For Cassette Mechanism Block
18
Error Detection For Cd/Changer Block
18
Power Supply Related Error Detection
18
Cd Test Mode Function
19
Measurements And Adjustments
19
Cassette Deck Section
19
Head Azimuth Adjustment (Deck 1/2)
19
Tuner Section
20
Tape Speed Adjustment (Deck 1/2)
20
Bias And Erase Voltage Check
20
Bias Frequency Adjustment (Deck 1/2)
20
Alignment Points
21
Am-Rf Alignment
21
Illustration Of Ic's, Transistor And Diodes
22
Terminal Function Of Ic's
23
Ic701 (An8839Nsbe2) Servo Amplifier
23
Ic702 (Mn662790Rsc) Servo Processor/Digital Signal Processor/Digital Filter/ D/A Converter
23
Ic703 (An8739Sbe2) Focus Coil/ Tracking Coil/ Traverse Motor/ Spindle Motor Driver
24
Ic600 (M38199Mf227) System Microprocessor
24
Block Diagram
26
Schematic Diagram
33
Cd Servo Circuit
34
Tuner Circuit
36
Main Circuit
37
Tact Switch Circuit
39
Panel Circuit
39
Power Circuit
43
Deck Circuit
44
Mechganism (Deck 2) Circuit
44
Ac Transformer Circuit
46
Sub-Transformer Circuit
46
Motor Circuit
46
Cd Detact Circuit
46
Printed Circuit Board
47
Cd Servo Pcb (Repx0192A)
47
Tuner Pcb (Repx0215A)
48
Main Pcb (Repx0200F)
48
Panel Pcb (Repx0197H)
49
Mechanism (Deck 1) Pcb (Repx0108A)
51
Mechanism (Deck 2) Pcb (Repx0108)
51
Motor Pcb (Rep2578A-N)
51
Spindle Position Pcb (Rep2578A-N)
51
Deck Pcb (Repx0198A)
52
Power Pcb (Repx0201B)
53
Ac Transformer Pcb (Repx0203D...eb)
54
Ac Transformer Pcb (Repx0203C...e/Eg)
54
Sub-Transformer Pcb (Repx0203C...e/Eg)
55
Tact Switch (1/2) Pcb (Repx0197H)
56
Wiring Connection Diagram
57
Troubleshooting Guide
58
Parts Location And Replacement Parts List
59
Deck Mechanism (Raa3410-S)
60
Deck Mechanism Parts Location
60
Deck Mechanism Parts List
62
Cd Loading Mechanism (Rd-Dac026-S)
63
Cd Loading Mechanism Parts Location
63
Cd Loading Mechanism Parts List
65
Cabinet Parts Location
66
Cabinet Parts List
68
Electrical Parts List
68
Packaging
76
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