Table of Contents
Advertisement
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.
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
1
• All resistors are in Ω and
/
W or less unless otherwise
4
specified.
•
%
: indicates tolerance.
•
f
: internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• 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.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
No mark : FM
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: ANALOG
c
: DIGITAL
• Abbreviation
AR
: Argentine model
E51
: Chilean and Peruvian models
MX
: Mexican model
SP
: Singapore model
SP6
: Singapore and Malaysia models
TH
: Thai model
STR-K685
SECTION 4
DIAGRAMS
For Printed Wiring Boards.
Note:
• X : parts extracted from the component side.
•
: Through hole.
a
•
f
: internal component.
•
: Pattern from the side which enables seeing.
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
• Indication of transistor.
C
Q
These are omitted.
B
E
B
C E
These are omitted.
• Circuit Boards Location
POWER board
DCAC board
HEADPHONE board
• Waveforms
– DIGITAL Board –
1
IC1905 9 (MCLK1)
3.5 Vp-p
72 ns
1 V/DIV, 40 ns/DIV
2
IC1101 id (X1)
4.2 Vp-p
41.6 ns
1 V/DIV, 20 ns/DIV
3
IC1301 ws (XIN)
4.2 Vp-p
81.4 ns
1 V/DIV, 40 ns/DIV
13
13
AC SELECT board (E51)
STANDBY board
DISPLAY board
MAIN board
STR-K685
Ver. 1.2
DIGITAL board
Hide quick links:
Advertisement
Table of Contents
