MICROFILM
SERVICE MANUAL
CASSETTE PLAYER
AEP Model
E Model
TC-K6/K7
Model Name Using Similar Mechanism
NEW
Tape Transport Mechanism Type
MT-WMEX372-114
SPECIFICATIONS
WM-EX372
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol
a are trade-
marks of Dolby Laboratories Licensing Corporation.
Ver 1.2 1999. 03
With SUPPLEMENT 1
(9-923-319-81)
With SUPPLEMENT 2
(9-923-319-82)
2
TABLE OF CONTENTS
1.
GENERAL ................................................................... 3
2.
DISASSEMBLY ......................................................... 4
3.
MECHANICAL ADJUSTMENTS ....................... 8
4.
ELECTRICAL ADJUSTMENTS ......................... 8
5.
DIAGRAMS
5-1. Block Diagram ................................................................ 9
5-2. Printed Wiring Board ...................................................... 11
5-3. Schematic Diagram ......................................................... 13
6.
EXPLODED VIEWS ................................................ 16
7.
ELECTRICAL PARTS LIST ............................... 19
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.
3
SECTION 1
GENERAL
This section is extracted from
instruction manual.
4
2 Insert the precision screw driver (1.4 mm flat-blade) in to the slit at claw A and release the claw.
3 Remove the cabinet (rear) ass'y. (Release all claw B to N in alphabetical order.)
Note: Follow the disassembly procedure in the numerical order given.
SECTION 2
DISASSEMBLY
CABINET (REAR) ASS'Y
· This set can be disassembled in the order shown below.
CABINET (REAR) ASS'Y
MECHANISM DECK
(MT-WMEX372-114)
BELT
MAGNETIC HEAD
(HP901)
MOTOR
(M901)
MEGA BASS UNIT (DOLBY)
MAIN BOARD
CASSETTE HOLDER ASS'Y
SET
1 screw (B1.7
× 9)
1 screw (B1.7
× 9)
K
L
M
N
B
C
D
E
F
G
H
I
J
cassette holder
cabinet (rear) ass'y
A
5
MAIN BOARD, MECHANISM DECK (MT-WMEX372-114)
BELT, MOTOR (M901), MAGNETIC HEAD (HP901)
6 main board
3 head flexible board
(CN301)
8 Remove the mechanism
deck (MT-WMEX372-114)
to direction of the arrow.
7 claw
7 claw
5 two claws
1 Remove four solders of
motor lead (M901).
4 toothed lock (WH) screw
(M1.4)
2 flexible board (CN302)
1 belt
3 motor (M901)
2 two special head screws
(M1.4)
4 two screws
5 magnetic head
(HP901)