— 2 —
TABLE OF CONTENTS
Flexible Circuit Board Repairing
•
Keep the temperature of the soldering iron aroud 270˚ C during
repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be
damaged by heat.
1.
GENERAL
······································································ 3
2.
DISASSEMBLY
2-1.
Cabinet (Front) Assy ·························································· 5
2-2.
Main Board ········································································· 6
2-3.
Mechanism Deck ································································ 6
2-4.
Cassette Lid Sub Assy ························································ 7
2-5.
Display Board ····································································· 7
3.
MECHANICAL ADJUSTMENT
······························· 8
4.
ELECTRICAL ADJUSTMENT
································ 8
5.
DIAGRAMS
IC Block Diagrams ··························································· 11
5-1.
Block Diagram ································································· 13
5-2.
Printed Wiring Board -Main Section- ······························ 15
5-3.
Schematic Diagram -Main Section- ································· 17
5-4.
Printed Wiring Board -Display Section-(FX483/FX485) ·· 19
5-5.
Schematic Diagram -Display Section-(FX483/FX485) ···· 21
5-6.
Printed Wiring Board -Display Section-(FX487) ·············· 23
5-7.
Schematic Diagram -Display Section-(FX487) ················ 25
5-8.
IC Pin Function ································································ 27
6.
EXPLODED VIEWS
6-1.
Cassette Lid Section ························································· 29
6-2.
Cabinet Section································································· 31
6-3.
Mechanism Deck Section ················································· 32
7.
ELECTRICAL PARTS LIST
··································· 33
Содержание RWALKMAN WM-FX487
Страница 3: ...SECTION 1 GENERAL 3 ...
Страница 4: ... 4 ...
Страница 15: ...WM FX483 FX485 FX487 18 17 5 3 SCHEMATIC DIAGRAM MAIN SECTION Refer to page 11 for Note on Schematic Diagram ...