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.
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
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
