Diagrams; Circuit Board Location - Sony STR-K850P Service Manual

3-1. Circuit Board Location

STANDBY board
POWER board
HEADPHONE board
DISPLAY board
SECTION 3

DIAGRAMS

BRIDGEABLE board
MAIN board
VIDEO board
S-VIDEO board
DIGITAL board
VOLUME board
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this 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: Note:
Les composants identifiés par
The components identi-
fied by mark 0 or dotted une marque 0 sont critiques
line with mark 0 are criti- pour la sécurité.
cal for safety. Ne les remplacer que par une
Replace only with part piéce por tant le numéro
spécifié.
number specified.
• 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 MΩ).
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)
• Abbreviation
CND : Canadian model
7 7
STR-K850P
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.
C
Q These are omitted.
B E
B C E
These are omitted.
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.
• Waveforms
DIGITAL Board
IC1101 wa (XOUT)
1
4.3Vp-p
81.4ns
(12.288MHz)
1V/DIV, 40ns/DIV
2 IC1201 9 (MCLK1)
3.4Vp-p
73.6ns (13.59MHz)
1V/DIV, 40ns/DIV
IC1601 id (XI)
3
3.5Vp-p
62.5ns (16MHz)
1V/DIV, 40ns/DIV