7
7
STR-K751P
• Waveform
DIGITAL Board
For schematic diagrams.
Note:
• 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.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
No mark : FM
• 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.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: CD (ANALOG)
c
: DVD (DIGITAL)
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side A)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side B)
the parts face are indicated.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
a
: Through hole.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
SECTION 3
DIAGRAMS
3-1. Circuit Board Location
MAIN board
DISPLAY board
HEADPHONE board
STANDBY board
VIDEO board
DIGITAL board
VOLUME board
POWER board
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
Содержание STR-K751P - Fm Stereo/fm-am Receiver
Страница 39: ...39 STR K751P MEMO ...
