STR-DE845, STR-DE945 - Sony Audio Service Manual (repair manual). Page 14

Read Sony STR-DE845 / STR-DE945 Service Manual online

14
14
SP board
DC (2) board
AC board
DIGITAL board
5.1 IN board
AU SW board
MUTING board
ROTARY board
DISPLAY board
POWER board
DC (1) board
VIDEO 3 board (DE945)
• Circuit Boards Location
4-4.
NOTE  FOR  PRINTED  WIRING  BOARDS  AND  SCHEMATIC  DIAGRAMS

Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted.  pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
•
f
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
∗
: Impossible to measure
• 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 waveforms.
• Signal path.
F
: FM
J
: CD
I
: PHONO
• Abbreviation
AUS
: Australian model
CH
: Chinese model
CND : Canadian model
MY
: Malaysia model
SP
: Singapore model

Note:
The components identi-
fied by mark 
0
 or dotted
line with mark 
0
 are criti-
cal for safety.
Replace only with part
number specified.

Note:
Les composants identifiés par
une marque 
0
 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q

Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
BIAS (C) board
BIAS (R) board
BIAS (RS) board
BIAS (LS) board
BIAS (L) board
S-VIDEO board
VIDEO board (DE845)/
OSD board (DE945)
JOINT (1) (H) board (DE845)/
OSD JOINT (H) board (DE945)
MAIN board
VOL board
H.P board
V. SWITCH board (E/PX)
• Indication of transistor
Display
Click on the first or last page to see other STR-DE845 / STR-DE945 service manuals if exist.
Random: