1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
CD MOTOR BOARD
1-658-023-
S701
(LIMIT)
S701
(SPINDLE)
CNP707
1
6
M
M702
(SLED)
M
X201
C758
FB705
TP (RFO)
31
(31)
1-672-179-
21
(21)
04
5-5. PRINTED WIRING BOARDS — CD SECTION — • Refer to page 16 for Circuit Boards Location.
PHC-ZW770L
– 21 –
– 22 –
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
Ref. No.
Location
D701
D-8
D702
G-8
D703
C-6
IC701
F-4
IC702
C-3
IC703
F-7
Q701
F-2
• Semiconductor
Location
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
U
: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD STOP
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD
(Page 30)
(Page 25)
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
