Sony MDX-C8500R, Service Manual

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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.
• f : internal component.
• C : panel designation.
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
z
: Through hole.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• U : B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• 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.
F : FM
f : AM (MW/LW)
L
: BUS AUDIO IN
E
: MD PLAY
• Please refer to servicing notes (page 3) for system of
TYPE A, B and C.
Note: The components identified by mark
0
or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
5-6. NOTES FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Circuit Boards Location
SUB board
DSO board
SENSOR board
SERVO board
MAIN board
KEY board