1
SPECIFICATIONS
WM-FX121V
E Model
SERVICE MANUAL
MICROFILM
Model Name Using Similar Mechanism
WM-FX101
Tape Transport Mechanism Type
MF-WMFX103Y-48
RADIO CASSETTE PLAYER
Battery
Playback
Radio
Sony Alkaline LR6 (SG)
13 hours
30 hours
Sony R6P (SR)
4 hours
15 hours
Radio Frequency
FM
: 87.6 107.9 MHz
AM
: 531 1,602 kHz
Power Requirements
3V DC Batteries AA (R6) x 2
External DC 3 V power sources
Battery Life
(approximate hours when using the batteries specified below)
Supplied Accessories
· Stereo headphones (1)
· Belt clip (1)
Design and specifications are subject to change without notice.
Using External Power Sources
You can connect the following external power sources through the DC IN 3V
jack located on the bottom.
(When you plug a cord into the DC IN 3 V jack, the internal batteries are
automatically bypassed.)
· House current using an AC-E30HG AC power adaptor
· 12 V car battery using a DCC-E130L car battery cord
Dimensions
118.8 x 89.5 x 34.1 mm (4 3/4 x 3 5/8 x 1 3/8 in.)
(w/h/d) incl. projecting parts
Mass
200g (7.1 oz) incl. batteries
Polarity of the plug
Note:
Use only the recommended AC-E30HG AC
power adaptor (not supplied). Do not use any
other AC power adaptor.
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TABLE OF CONTEMTS
Section
Title
Page
SECTION 1 GENERAL ...................................................... 2
SECTION 2 DISASSEMBLY
2-1. Cabinet (Rear) Assembly ...................................................... 3
2-2. Mechanism Deck and Main Board ....................................... 4
2-3. Main Board ........................................................................... 4
2-4. Cassette Lid ........................................................................... 4
2-5. Note for Installation .............................................................. 5
SECTION 3 ADJUSTMENTS
3-1. Mechanical Adjustments ....................................................... 6
3-2. Electrical Adjustments .......................................................... 6
SECTION 4 DIAGRAMS
4-1. Printed Wiring Board ............................................................ 9
4-2. Schematic Diagram ............................................................. 11
SECTION 5 EXPLODED VIEWS
5-1. Cabinet and Board Section.................................................. 15
5-2. Mechanism Section (MF-WMFX103Y-48) ........................ 16
SECTION 6 ELECTRICAL PARTS LIST ................... 17
HOW TO CHANGED THE CERAMIC FILTERS
This model is used two ceramic filters of CF2, X2. You must used
same type of color marked ceramic filters in order to meet same
specifications.
Therefore, the ceramic filter must changed two pieces together since
it's supply two pieces in one package as a spare parts.
color mark
red
blue
orange
black
white
Center Frequency
10.70MHz
10.67MHz
10.73MHz
10.64MHz
10.67MHz
color mark
CF2
color mark
X2
SECTION 1
GENERAL
This section is extracted
from instruction manual.
3
SECTION 2
DISASSEMBLY
· The equipment can be removed using the following procedure.
Set
CABINET (REAR) ASSEMBLY
MECHANISM DECK AND MAIN BOARD
MAIN BOARD
CASSETTE LID
Note: Follow the disassembly procedure in the numerical order given.
2-1. CABINET (REAR) ASSEMBLY
· The cabinet (REAR) assembly has numerious claws.
When removing it, check the positions of these claws as shown below.
2
2
!TM
!¡
!º
9
8
7
6
5
4
4
4
1
1
3
2
!TM
!¡
A
B
Flexible board
1 Open the battery case lid.
3 Slide the screwdriver (flat-blade) in
arrow
B direction to disconnect the
two claws
2.
Note: Take note of the flexible board.
2 Put your second finger in the battery
case of the cabinet (REAR) assembly,
pull in the arrow
A direction to
disconnect claws
1, !¡ and !TM.
4
C
Cabinet (REAR) assembly
4 Disconnect claw
3. As shown in the
figure, lift up the cabinet (REAR)
assembly, pull in arrow
C direction
to disconnect the three claws
4.
D
5 Lift the cabinet (REAR) assembly
in the arrow
D direction. Claws 5
to
!º will disconnect automatically.
Lift the cabinet assembly, then twist across.
4
2-2. MECHANISM DECK AND MAIN BOARD
2-3. MAIN BOARD
2-4. CASSETTE LID
1 Flexible board
2 Remove the mechanism deck and main
board in the direction of the arrow.
Mechanism deck
and MAIN board
Head flexible board
*
* note for installation:
Make sure to put the head
flexible board to ditch before
install the mechanism deck
and MAIN board.
3 Main board
2 Claws
1 Head flexible board
3 Remove the cassette
lid in arrow
C direction.
C
A
B
1 Insert the precision screwdriver
(1.4mm flat-blade) vertically
in to portion
A to release the
hinge plate.
2 Portion
B to release the
hinge plate.
Note: Be careful not to loose
the spring here
Front cabinet
5
2-5. NOTE FOR INSTALLATION
· TORSION SPRING
1 Attach the torsion spring as
shown the figure.
2 Insert the torsion spring in the
hole as shown in the figure.
3 Lift the torsion spring in the
arrow direction and hook it
properly.
· CABINET (REAR) ASSEMBLY
After pushing claws
A to C and locking them.
Push the cabinet (REAR) assembly in the arrow direction, and lock
the order claws.
A
B
C