2
WM-EX527
TABLE OF CONTENTS
1. SERVICING NOTES............................................... 3
2. GENERAL ................................................................... 5
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 6
3-2. Cassette Lid Assy ............................................................ 6
3-3. Case Block Assy.............................................................. 7
3-4. Reel Ornament Block Assy............................................. 7
3-5. Battery Holder ................................................................. 8
3-6. Belt (F2) .......................................................................... 8
3-7. MAIN Board ................................................................... 9
3-8. Motor (Capstan/Reel) (M901) ........................................ 10
3-9. Holder (FS) Section ........................................................ 10
3-10. Pinch Lever (N) Assy, Pinch Lever (R) Assy ................. 11
3-11. Magnetic Head (Playback) (HP901) .............................. 11
4. MECHANICAL ADJUSTMENTS ....................... 11
5. ELECTRICAL ADJUSTMENTS......................... 11
6. DIAGRAMS
6-1. Block Diagram ................................................................ 12
6-2. Note for Printed Wiring Board and
Schematic Diagram ......................................................... 13
6-3. Printed Wiring Board ...................................................... 14
6-4. Schematic Diagram ......................................................... 15
6-5. IC Pin Function Description ........................................... 16
7. EXPLODED VIEWS
7-1. Case Section .................................................................... 18
7-2. Mechanism Deck Section (MT-WMEX505-162) .......... 19
8. ELECTRICAL PARTS LIST ............................... 20
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.
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
To Next Page
Loading...
Need help?
General
