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MDS-JA20ES
Sony MDS-JA20ES Service Manual
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– 16 –
MD MECHANISM SECTION
A
U BO
ARD
1
screw
(BVTT3
×
6)
2
Remov
e the MD
mechanism section
in the arrow direciton
A
.
1
five scre
ws
(BVTT3
×
6)
3
two flat wires
(CN102, 103)
4
connector
(CN401)
T
O BU holder ass’y
,
loading motor ass’y
(page 18).
A
1
four flat wires
(CN400, 501, 800, 801)
2
three connectors
(CN100, 200, 502)
4
brack
et (case)
5
three screws
(BV3
×
8)
5
three screws
(BV3
×
8)
3
screw
(3
×
8)
6
screw
(BV/ring)
A
7
Remov
e the A
U board
in the arrow direction
A
.
15
17
Table of Contents
Self-Diagnosis Function
2
1 Servicing Notes
4
Table of Contents
4
2 General
12
3 Disassembly
15
Basic Operations of the Test Mode
21
Setting the Test Mode
21
4 Test Mode
21
Selecting the Test Mode
22
5 Electrical Adjustments
26
Block Diagram - MD SERVO Section
35
6 Diagrams
35
Block Diagram - MAIN Section
36
Note for Printed Wiring Boards and Schematic Diagrams
38
Printed Wiring Board - BD Section
39
Schematic Diagram – BD Section (1/2)
41
Schematic Diagram - BD Section (1/2)
42
Printed Wiring Boards - BD SWITCH Section
43
Schematic Diagram - BD SWITCH Section
44
Printed Wiring Board - AUDIO Board (Component Side)
45
Schematic Diagram - AUDIO Section (1/2)
47
Schematic Diagram - AUDIO Section (2/2)
48
Printed Wiring Board - DIGITAL Section
49
Schematic Diagram - DIGITAL Section
51
Printed Wiring Boards - PANEL Section
52
Schematic Diagram - PANEL Section
53
Printed Wiring Board - POWER Board (Component Side)
54
Printed Wiring Boards - POWER Board (Conductor Side), AC Board
55
Schematic Diagram - POWER Section
56
IC Pin Function Description
64
7 Exploded Views
73
8 Electrical Parts List
79
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Operating Instructions
120 pages
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Sony MDS-JA20ES Specifications
General
Brand
Sony
Model
MDS-JA20ES
Category
MiniDisc Player
Language
English
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