Sony XDR-S3HD Service Manual page 12

XDR-S3HD
• Circuit Boards Location
KEY board
VOL board
CNT board
MICON board
XDR-S3HD
MAIN board
JACK board
TUNE board
FAN CNT board
POWER board
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THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
for schematic diagrams:
• All capacitors are in µF unless otherwise noted. (p: pF)
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.
• % : indicates tolerance.
• : internal component.
f
• 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.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM1
• 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 waveform.
• Signal path.
F : FM
f
: AM
• Waveforms
— MICON Board —
1
IC401 qa (XCOUT)
2.2 Vp-p
32 kHz
1 V/DIV, 10 µ sec/DIV
2
IC401 qd (XOUT)
3.1 Vp-p
5.53 MHz
1 V/DIV, 0.1 µ sec/DIV
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for printed wiring boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• : internal component.
f
• : Pattern from the side which enables seeing.