background image
MICROFILM
SERVICE MANUAL
RADIO CASSETTE PLAYER
Canadian Model
E Model
Model Name Using Similar Mechanism WM-FX101
Tape Transport Mechanism Type
MF-WMFX103Y-48
SPECIFICATIONS
WM-FX161
87.6 ­ 108 MHz (Canadian)
87.6 ­ 107.9 MHz (E)
AM: 530 ­ 1,710 kHz (Canadian)
531 ­ 1,602 kHz (E)


background image
­ 2 ­
TABLE OF CONTENTS
1.
GENERAL ................................................................... 3
2.
DISASSEMBLY ......................................................... 4
3.
DIAL POINTER SETTING .................................. 6
4.
MECHANICAL ADJUSTMENTS ....................... 7
5.
ELECTRICAL ADJUSTMENTS ......................... 7
6.
DIAGRAMS
6-1. Block Diagram ................................................................ 9
6-2. Printed Wiring Board ...................................................... 11
6-3. Schematic Diagram ......................................................... 13
7.
EXPLODED VIEWS ................................................ 16
8.
ELECTRICAL PARTS LIST ............................... 18
Flexible Circuit Board Repairing
· Keep the temperature of the soldering iron around 270 °C dur-
ing 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.
SERVICING NOTES
HOW TO CHANGE THE CERAMIC FILTERS
This model is used two ceramic filters of CF2 and 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.
Mark
Center frequency
red
10.70MHz
blue
10.67MHz
orange
10.73MHz
black
10.64MHz
white
10.76MHz
mark
CF2
X2


background image
­ 3 ­
SECTION 1
GENERAL
This section is extracted from
instruction manual.


background image
­ 4 ­
CABINET (REAR) ASS'Y
1 Insert the precision screw driver
(1.4 mm flat-blade) in to the slit
at claw A and release the claw.
2 Remove the cabinet (rear) ass'y. (Re-
lease all claw B to M in alphabetical
order.)
MECHANISM DECK (MF-WMFX103Y-48)
AND MAIN BOARD
Note: Follow the disassembly procedure in the numerical order given.
SECTION 2
DISASSEMBLY
· This set can be disassembled in the order shown below.
cassette holder
A
cabinet (rear) ass'y
B
C
D
E
I
K
M
L
J
H
G
F
1 Remove the mechanism deck
(MF-WMFX103Y-48) and MAIN board
in the direction of the arrow.
Note: Make sure to put the head
flexible board to ditch before
install the mechanism deck
and MAIN board.
SET
CABINET (REAR) ASS'Y
MECHANISM DECK (MF-WMFX103Y-48)
AND MAIN BOARD
MAIN BOARD
CASSETTE HOLDER


background image
­ 5 ­
MAIN BOARD
CASSETTE HOLDER
3 three claws
4 MAIN board
1 head flexible board
(CN301)
2 Remove the solder
of the motor wire.
front cabinet
3 cassette hoder
1 Insert a precision screwdriver
(1.4 mm flat-blade) vertically
in to portion A to release
the hinge plate.
2 Portion B to release
the hinge plate.
A
B