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WM-FX561/FX563
AEP Model
E Model
Chinese Model
WM-FX561/FX563
Canadian Model
WM-FX563
SERVICE MANUAL
RADIO CASSETTE PLAYER
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-924-907-12
2002A1600-1
© 2002.1
Photo : WM-FX561
Ver 1.1 2002. 01


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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.
Specification ················································································· 1
1. GENERAL ·········································································· 3
2. SERVICE NOTE ······························································· 3
3. DISASSEMBLY
3-1. Case Assy Removal ······················································· 4
3-2. Tuner Board Removal ··················································· 4
3-3. Audio Board Removal ··················································· 5
3-4. Cassette Lid Assy Removal ··········································· 5
3-5. Mechanism Deck Removal ··········································· 6
4. MECHANICAL ADJUSTMENT ·································· 7
5. ELECTRICAL ADJUSTMENT ···································· 7
6. DIAGRAMS
6-1. Block Diagram ······························································ 9
6-2. IC Pin Function Description ········································ 11
6-3. Printed Wiring Boards (Tuner Section) ······················· 13
6-4 Schematic Diagram (Tuner Section) ··························· 17
6-5 Schematic Diagram (Audio Section) ··························· 20
6-6. Printed Wiring Board (Audio Section) ························ 23
7. EXPLODED VIEWS
7-1. Cabinet Section ··························································· 29
7-2. Audio, Tuner Board Section ········································ 30
7-3. Mechanism Section (MT-WMEX550-125) ················· 31
8. ELECTRICAL PARTS LIST ······································· 32


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SECTION 1
GENERAL
· LOCATION OF CONTROL
SECTION 2
SERVICE NOTE
· Regarding the method of adjustment and voltage check, perform sections 3-1 and 3-2 of the DISASSEMBLY, and attach the JIG (extension
cable) to the AUDIO board as shown below.
JIG Part No.: J-2503-005-A
1
2
4
5
6
3
9
!
0
8
Battery case
DC IN 1.5V
!TM
7L
1
OPEN knob
4
TUNING + button
6
ENTER button
7 oe
/REPEAT button
8 p
/RADIO OFF button
9
MENU button
0
SET button
!
BAND button
VOLUME knob
!TM
HOLD knob
Display window
2 REMOTE jack
5
TUNING ­ button
2
PRESET + /AMS FF button
3
PRESET ­ /AMS REW button
Screw
(M1.4
× 5.0)
Screw (M1.4
× 5.0)
TUNER board
Screw (M1.7
× 4.0)
Screw
(M1.4
× 5.0)
JIG
AUDIO board


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SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1.
CASE ASSY REMOVAL
3-2.
TUNER BOARD REMOVAL
Note : Disassemble the unit in the order as shown below.
4
Case assy
2
Screws
(M1.4
× 2.2)
1
Screw
(M1.4
× 3.0)
1
Screw
(M1.4
× 2.2)
3
1
Screws (M1.7
× 6)
4
TUNER board
3
Screw
(M1.4
× 4.5)
6
GUIDE (TU )
5
2
Screw (M1.7
× 3)
CASE ASSY
TUNER BOARD
AUDIO BOARD
CASSETTE LID ASSY
MECHANISM DECK
SET


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3-3.
AUDIO BOARD REMOVAL
3-4.
CASSETTE LID ASSY REMOVAL
5
AUDIO board
1
Remove solder
2
Remove solder
3
Flexible board
4
2
Screw (M1.4
× 2)
5
Cassette lid assy
3
Screw (M1.4
× 2)
1
OPEN button
4