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Sony CFD-CD777SMK2 - Note for Printed Wiring Boards and Schematic Diagrams

Sony CFD-CD777SMK2
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CFD-CD777SMK2
2323
6-5. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Circuit Boards Location
REMOTE CONTROL board
CONTROL board
SPEAKER board
MOTOR board
MAIN board
BATTERY
board
DC JACK board
POWER boar
d
FINE TUNING board
AMP board
R/P SW board
H/P board
LED
board
VOL board
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 and
1
/
4
W or less unless otherwise
specified.
f
: internal component.
5 : fusible resistor.
C : panel designation.
Note on Printed Wiring Boards:
X : parts extracted from the component side.
Y : parts extracted from the conductor side.
x : parts mounted on the conductor side.
W : indicates side identified with part number.
f
: internal component.
: Pattern from the side which enables seeing.
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 M).
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
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.

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