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2
CFM-20
TABLE OF CONTENTS
Specifications ........................................................................... 1
1. GENERAL
Location and Function of Controls .................................... 2
2. DISASSEMBLY
2-1. Cabinet (Front) Sub ASSY, Cabinet (Rear) ASSY .... 3
2-2. MD ASSY ................................................................... 3
2-3. Record/Playback Head (HRP101),
Reel/Capstan Motor (M101),Belt ............................... 4
2-4. Jack Board (AEP, UK, IT, CET, HK, SP, AR model)
Main Board ................................................................. 4
2-5. Batt (+) Board, Power Board
(AEP, UK, IT, CET, HK, SP, AR model) .................... 5
2-6. Batt (+) Board, Power Board
(C&SA, MX, TW model) ........................................... 53. ADJUSTMENTS
3-1. Mechanical Adjustments ............................................. 7
3-2. Electrical Adjustments ................................................ 7
4. DIAGRAMS
4-1. Block Diagrams ......................................................... 11
4-2. Printed Wiring Boards .............................................. 12
4-3. Schematic Diagrams -Main Section (1/2) - ............. 13
4-4. Schematic Diagrams -Main Section (2/2) - ............. 14
5. EXPLODED VIEWS
5-1. Front Cabinet Section ............................................... 17
5-2. Rear Cabinet Section ................................................ 18
5-3. Mechanism Deck Section-1(MF-M20-117) ............. 19
5-4. Mechanism Deck Section-2(MF-M20-117) ............. 20
6. ELECTRICAL PARTS LIST........................................ 21
SECTION 1
GENERAL
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH
MARK !ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST
ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
This section is extracted from
instruction manual.
Location and Function of Controls
Notes on chip component replacement
- Never reuse a disconnected chip component.
- Notice than the minus side of a tantalum capactior may be
damaged by heat.
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3
CFM-20
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-2. MD ASSY
- The equipment can be removed using the following procedure.
SetCabinet (front) sub ASSY
Cabinet (rear) ASSY
Jack board, Main boardBatt(+) board, Power board
MD ASSY
Record/playback head (HRP101),
Reel/capstan motor (M101), Belt
31 2
Screws (+ BVTP 3X14)
2Screws
(+ BVTP 3X14 )
4Remove solder (two place)
5CNP103
6Cabinet (front) sub ASSYLid, BATT
Cabinet (rear) ASSY
White
White/red
3
4CNP102
1Screw (+ BVTP 3X10)
2CNP101
5MD ASSY
Bracket (VOL) Cabinet (rear) ASS Y
- Abbreviation
SP : Singapore AR : Argentina
HK : Hong Kong MX : Mexican
IT : Italian TW : Taiwan
C&SA : Central and South America
CET : East European & Russian
2-1. CABINET (FRONT) SUB ASSY, CABINET (REAR) ASSY
