Table Of Contents - Sony Walkman PCM-M1 Service Manual

TABLE OF CONTENTS

1. GENERAL ································································
2. DISASSEMBLY
2-1. PANEL ASSY, LOWER ··················································· 14
2-2. MAIN BOARD ································································ 14
2-3. LID ASSY, CASSETTE ··················································· 15
2-4. PC BOARD UNIT, SYSTEM CONTROL ······················ 15
2-5. CABINET ········································································· 16
2-6. BRACKET ASSY, MD ···················································· 16
2-7. CHASSIS ASSY ······························································· 17
2-8. DRUM ASSY ··································································· 17
3. ADJUSTMENTS
3-1. ADJUSTMENTS ······························································ 18
3-2. MECHANICAL ADJUSTMENTS ·································· 23
3-3. ELECTRICAL ADJUSTMENTS ···································· 24
4. DIAGRAM
4-1. BLOCK DIAGRAM - MD SECTION - ······················· 26
4-2. BLOCK DIAGRAM - AUDIO SECTION - ················· 29
4-3. IC BLOCK DIAGRAM ··················································· 31
4-4. PRINTED WIRING BOARD ·········································· 34
4-5. SCHEMATIC DIAGRAM -MAIN SECTION - ········· 39
4-6. SCHEMATIC DIAGRAM -AUDIO SECTION - ······ 42
4-7. IC PIN FUNCTION ························································· 45
5. EXPLODED VIEWS
5-1. CABINET SECTION ······················································· 49
5-2. CASSETTE HOLDER SECTION ··································· 50
5-3. MACHANISM SECTION 1 ············································ 51
5-4. MACHANISM SECTION 2 ············································ 52
6. ELECTRICAL PARTS LIST
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.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 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.
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