Note For Printed Wiring Boards And Schematic Diagrams - Sony CFD-CD777SMK2 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-5.

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

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 / W or less unless otherwise
4
specified.
• : internal component.
f
• 5 : fusible resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 12 V and fed with regulated dc power
supply from battery terminal.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
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.
F
: FM
f
: MW
E
: TAPE PLAY (DECK A)
d
: TAPE PLAY (DECK B)
G
: TAPE REC (DECK B)
J : CD
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
.
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Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• : parts mounted on the conductor side.
x
W : indicates side identified with part number.
•
• : internal component.
f
• : Pattern from the side which enables seeing.
x a o u 1 6 3
y
i
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8 9
• Circuit Boards Location
CONTROL board
REMOTE CONTROL board
VOL board
LED
board
H/P board
Q Q
3 7 6 3 1 5 1
AMP board
c o
.
23 23
2 4 2
9 8
SPEAKER board
MOTOR board
MAIN board
5 0 8 9 2 4 9 8 2
BATTERY
board
FINE TUNING board
R/P SW board
m
CFD-CD777SMK2
9 9
DC JACK board
POWER board
9 9