Sony WM-FS111 Service manual
WM-FS111
SERVICE MANUAL
Ver 1.1 2000. 05
SPECIFICATIONS
US Model
Canadian Model
AEP Model
E Model
Model Name Using Similar Mechanism NEW
T ape Transport Mechanism Type MF-WMFS111-114
Radio Frequency FM : 87.6 – 108 MHz
Power Requirements 3 V DC Batteries R6 (AA) × 2
Dimensions 104.0 × 122.0 × 48.7 mm(4 1/8 × 4 7/8 × 1 15/16 inches)
Mass Approx. 300 g (10.6 oz)
Supplied Accessories • Stereo headphones or stereo earphones (1)
Design and specifications are subject to change without notice.
(North, Central and South America)
87.5 – 108 MHz (Italy and Saudi Arabia)
65 – 107.9 MHz (Eastern Europe)
87.6 – 107.9 MHz (Other countries)
AM : 530 – 1,710 kHz
(North, Central and South America)
526.5 – 1,606.5 kHz (Italy and Saudi Arabia)
531 – 1,602 kHz (Other countries)
(w/h/d) incl. projecting parts and controls
Approx. 380 g (13.5 oz) incl. batteries and a cassette
• Belt clip (1)
MICROFILM
RADIO CASSETTE PLAYER
TABLE OF CONTENTS
1. GENERAL ·········································································· 2
2. SERVICE NOTE
2-1. How to Install The Wire Assembly····································· 3
2-2. Water Proof Section···························································· 3
SECTION 1
GENERAL
2
1
3
3. DISASSEMBLY
3-1. Holder Cassette Sub Assembly and Dial Scale ··················4
3-2. Main Assembly··································································· 5
3-3. Main Board········································································· 6
3-4. Mechanism Deck ································································6
3-5. Belt ····················································································· 7
3-6. Magnetic head ···································································· 7
4. MECHANICAL ADJUSTMENT ·································· 8
5. ELECTRICAL ADJUSTMENT ···································· 8
6. DIAGRAMS
6-1. Block Diagram ································································· 11
6-2. Printed Wiring Board························································ 13
6-3. Schematic Diagram ·························································· 15
6-4. IC Block Diagrams ··························································· 17
7. EXPLODED VIEWS ················································· 18
8. ELECTRICAL PARTS LIST ···································23
0
9
8
7
4
5
6
!¡
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.
!™
1 ∑VOL (volume) knob
2 BATT (battery) lamp
3 TUNING knob
4 FUNCTION selector
5 AVLS selector
6 MEGA BASS selector
7 ) REW button
8 ( PLAY button
9 0 FF button
0 p STOP button
!¡ TAPE/FM MODE switch (AEP, E Model)
TAPE/FM SENS switch (US, CND, MX Model)
!™ 2 jack
• Abbreviation
CND : Canadian model
MX : Mexican model
— 2 —
SECTION 2
)
SERVICE NOTE
2-1. HOW TO INSTALL THE WIRE ASSEMBLY
• To install the wire assembly, route the wire assembly in the correct position referring to the illustration below.
Wire assembly
2-2. WATER PROOF SECTION
NOTE : In case the parts in the figure are removed for repair, treat them to protect from water drop following the instructions in the figure
• sony grease SGL-601 : 7-651-000-10
(spread grease, bond etc.)
Tapping screw (B)(1.4x6)
Joint (AVLS)
O ring (DIA. 2.5xDIA. 4.5)
(Apply Sony grease SGL-601)
Gear (VOL)
Gear (A)
Tapping screw (B)(1.4x6)
Gear (B)
Apply Sony grease SGL-601
O ring
(Apply Sony grease SGL-601
Knob (function)
Knob (VOL)
Knob (TUNE)
— 3 —
Note : Disassemble the unit in the order as shown below.
y
Set Holder cassette sub assembly and dial scale
SECTION 3
DISASSEMBLY
Main assembly Main board
Mechanism deck Magnetic head
Belt
Note : Follow the disassembly procedure in the numerical order given.
3-1. HOLDER CASSETTE SUB ASSEMBLY AND DIAL SCALE
6
Cover (Cassette)
8
Wire assembly
7
Dial scale
5
Two tapping screws
×
(B1.7
4)
3
T apping screw
4
Holder cassette sub assembl
1
Stop ring (E-1.2)
2
T apping screw
— 4 —
3-2. MAIN ASSEMBLY
)
)
3
Remve the main assembly in the direction
of arrow.
(Be careful not to focibly pull the wire that connects
the main board and the headphone board.)
4
Remove the headphone
borad in the direction of arrow.
2
Two screws (+B1.7 × 7)
CAUTION WHEN ASSEMBLING THE MAIN ASSEMBLY
• Assemble the main assembly in a way that each switch mates with the corresponding knob each other.
AVLS switch (S305)
Function switch (S301)
Mega Bass switch
(S306)
Tuner (CV1
1
Stop ring (E 1.2
— 5 —
Volume (RV301)
3-3. MAIN BOARD
)
5
Main board
4
Two claws
2
Flexible board
(head)
3
Tooth screw ( M1.4)
1
Remove the solder (four points
3-4. MECHANISM DECK
2
Remove the mechanism deck in the direction of arrow.
1
Two claws
— 6 —
3-5. BELT
Belt
Belt threading
3-6. MAGNETIC HEAD
Capstan wheel assy(SP)
Reel/Capstan motor
Belt
1
2
Magnetic head (HP301)
Two screws (M1.4)
— 7 —
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