2
M-800V/850V
TABLE OF CONTENTS
Notes on Chip Component Replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of the 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.
1. GENERAL ....................................................................3
2. DISASSEMBLY
2-1. Cassette Lid Assy ···························································· 4
2-2. Cabinet (Rear) Sub Assy, Lid, Battery Case ··················· 5
2-3. MAIN Board Section ······················································ 5
2-4. LED Board, Battery Holder ············································ 6
2-5. Mechanism Deck (MZ-730V-99)(MZ-800V-99) ············ 6
2-6. Speaker (2.8cm) (SP901) ················································ 7
2-7. Microphone (MIC901)····················································7
2-8. Ceramic Head (HRPE901,902)
and DC Motor (M901) ···················································· 8
3. MECHANICAL ADJUSTMENTS..............................9
4. ELECTRICAL ADJUSTMENTS ...............................9
5. DIAGRAMS
5-1. Block Diagram.............................................................. 11
5-2. Printed Wiring Board .................................................... 12
5-3. Schematic Diagram....................................................... 13
5-4. Block Diagram.............................................................. 14
6. EXPLODEDVIEWS
6-1. Cabinet Section............................................................. 15
6-2. Mechanism Deck Section (1)
(MZ-730V-99)(MZ-800V-99)....................................... 16
6-3. Mechanism Deck Section (2)
(MZ-730V-99) .............................................................. 17
6-4. Mechanism Deck Section (2)
(MZ-800V-99) .............................................................. 18
7. ELECTRICAL PARTS LIST.....................................19
SERVICING NOTE
[How to recognize MZ-730V-99 and MZ-800V-99]
MZ-730V-99
DC motor (M901)
MZ-800V-99
DC motor (M901)
Ver 1.1 2004.01
