Diagrams - Sony STR-K995 Service Manual

STR-K995
QQ
3 7 63 1515 0
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.
• All resistors are in Ω and
1
/ 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
I
: VIDEO
TE
L 13942296513
• Circuit Boards Location
POWER KEY board
DCAC board
HEADPHONE board
www
.
14
http://www.xiaoyu163.com
SECTION 4

DIAGRAMS

For Printed Wiring Boards.
Note:
• X : parts extracted from the component side.
•
•
•
• Indication of transistor.
STANDBY board
DCDC board
VIDEO 3 board
DISPLAY board
x ao u163
y
i
http://www.xiaoyu163.com
2 9
8
: 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.
C
Q
These are omitted.
B E
B C E
These are omitted.
Q Q
3 6 7 1 3 1 5
HDMI RE board
VIDEO board
MAIN board
co
.
9 4 2 8
0 5 8 2 9 9 4 2 8
DIGITAL board
m
9 9
9 9