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MZ-E501
2-3. PRINTED WIRING BOARD – MAIN SECTION (SIDE B) –
IC 551
IC 903
IC 801
J301
COM
R
L
S809
(OPEN/CLOSE
DETECT SWITCH)
TO MOTOR FLEXIBLE BOARD
(M901 : SPINDLE MOTOR)
(M902 : SLED MOTOR)
MAIN BOARD
(SIDE B)
RECHARGEABLE BATTERY
NC-6WM
1PC, 1.2V 600mAh
RGND
R-KEY
R-DATA
RVDD
TO
PICK-UP
OPTICAL
BLOCK
(LCX-4E)
1-681-868-
5
4
3
1
12
(12)
12
A
B
C
D
E
F
G
H
I
34567891011121314
Ref. No. Location
D901 F-3
IC551 H-6
IC801 C-12
IC903 H-5
Q801 D-4
• Semiconductor
Location
Note on Printed Wiring Boards
• X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
• Main boards is four-layer pritnted board.
However, the patterns of layer 2 and 3 have not been
included in this diagrams.