12
12
XDR-S3HD
XDR-S3HD
• Waveforms
— MICON Board —
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
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
for printed wiring boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
•
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 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 waveform.
• Signal path.
F
: FM
f
: AM
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Circuit Boards Location
MICON board
VOL board
CNT board
KEY board
MAIN board
TUNE board
JACK board
POWER board
FAN CNT board
2.2 Vp-p
1 V/DIV, 10
µ
sec/DIV
32 kHz
5.53 MHz
1
IC401
qa
(XCOUT)
3.1 Vp-p
1 V/DIV, 0.1
µ
sec/DIV
2
IC401
qd
(XOUT)
