Ver 1.0 2000.03
WM-FX277/FX467/FX467ST
RADIO CASSETTE PLAYER
SPECIFICATIONS
US Model
Model Name Using
NEW
Mechanism Type
Similar Mechanism
WM-FX277
: MF-WMFX277-114
Tape Transport
WM-FX467/FX467ST : MF-WMFX467-114
Photo : WM-FX467
SERVICE MANUAL
· Frequency range
FM: 87.5 - 108 MHz
AM: 530 - 1,710 kHz
TV:
2 - 13 ch
· Power requirements
3V DC batteries R6 (AA) x 2
· Dimensions (w/h/d)
Approx. 91.4 x 115.5 x 35.0 mm (3 5/8 x 4
5/8 x 1 7/16 inches)
incl. projecting parts and controls
· Mass
FX467/FX467ST: Approx. 155 g (5.5 oz)/Approx. 235 g (8.3 oz) incl.
batteries and a cassette
FX277: Approx. 145 g (5.2 oz)/Approx. 225 g (8.0 oz) incl. batteries
and a cassette
· Supplied accessories
Stereo headphones or Stereo earphones (1)
Carrying case with belt clip(1)
Design and specifications are subject to change without notice.
Battery life (approximate hours)
(EIAJ*)
Sony alkaline LR6 (SG)
Sony R6P (SR)
Tape playback
25
7.5
Radio reception
40
14
* Measured value by the standard of EIAJ (Electronic Industries
Association of Japan). (Using a Sony HF series cassette tape)
Note
· The battery life may shorten depending on the operation of the unit.
2
Specifications ........................................................................... 1
1. GENERAL
Location and Function of Controls .................................... 2
2. DISASSEMBLY
2-1. Cabinet (Front) ........................................................... 3
2-2. Main Board ................................................................. 3
2-3. Mechanism Deck ........................................................ 4
2-4. Belt, Capstan/Reel Motor (M601) .............................. 4
2-5. Cassette Holder ........................................................... 5
3. ADJUSTMENTS
3-1. Mechanical Adjustments ............................................. 6
3-2. Electrical Adjustments ................................................ 6
4. DIAGRAMS
4-1. Explanation of IC Terminals ....................................... 9
4-2. Block Diagram .......................................................... 10
4-3. Printed Wiring Boards .............................................. 13
4-4. Schematic Diagram ................................................... 17
5. EXPLODED VIEWS
5-1. Cabinet Section ......................................................... 21
5-2. Mechanism Deck Section (WM-FX277) .................. 22
5-3. Mechanism Deck Section
(WM-FX467/FX467ST) ........................................... 23
6. ELECTRICAL PARTS LIST ................................... 24
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.
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.
TABLE OF CONTENTS
SECTION 1
GENERAL
LOCATION AND FUNCTION OF CONTROLS
This section is extracted from
instruction manual.
HOLD
OFF
AM
FM
TV
TUNING + / -
ENTER
MEGA BASS
NORM · CrO2 / METAL
DX · LOCAL
AVLS
NORM · LIMIT
VOLUME
x STOP
M
N PLAY
m
DIR · Y
(FX467 / FX467ST only)
MODE · s / d
(FX467 / FX467ST only)
PRESET+
FX467 / FX467ST
i
3
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. CABINET (FRONT)
2-2. MAIN BOARD
z
The equipment can be removed using the following procedure.
Main board
Cabinet (Front)
Cassette holder
Mechanism deck
Belt, Capstan/reel motor (M601)
Set
Cabinet (Front)
Cabinet (center) sub ASSY
Cassette holder
4
Claw
4
Claw
2
5
1
Claws
1
Claws
3
Claws
1
Claws
Main board
1
Screw
Orange
Black
White
Red
Cabinet (center) sub ASSY
Head flexible board
2
Remove solder
3
Claws
4
4
2-3. MECHANISM DECK
2-4. BELT, CAPSTAN/REEL MOTOR (M601)
Mechanism deck
Cabinet (center) sub ASSY
1
Claws
2
2 Belt
Stopper
1 Claw
4
Capstan/reel motor
(M601)
wheel ASSY (P), capstan
(FX467/FX467ST)
wheel ASSY (P), capstan
Belt
· How to apply the belt
Capstan/reel motor
(M601)
3
Screws (M1.4)
Mechanism deck
5
Cassette holder
4
Spring (torsion)
Hinge
Hinge
1
5
Hinge
Cabinet (center)
sub ASSY
Hinge
Projection
Projection
3
Move the hinge away
from projection
2
Move the hinge away
from projection
Spring (torsion)
Hinge
Hinge
Cassette holder
Cabinet (center) sub ASSY
1
2
4
3
1
Insert the spring (torsion) to the L shape slot as shown in the figure.
2,3 Insert the hinge of the "Cassette holder ".
4
Close the "Cassette holder" then press it.
2-5. CASSETTE HOLDER
z
CAUTIONS DURING ASSEMBLY