STR-DA3100ES (serv.man2) - Sony Audio Service Manual (repair manual). Page 3

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STR-DA3100ES
3
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STR-DA3100ES
Note for Printed Wiring Boards and Schematic Diagrams
Note on Printed Wiring Board:
X
: parts extracted from the component side.
Y
: parts extracted from the conductor side.
f
: internal component.
: 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.
DIGITAL board is multi-layer printed board. However, the pat-
terns of Intermedia layers have not been included in this dia-
grams.
Indication of transistor
Note on Schematic Diagram:
All capacitors are in 
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
f
: internal component.
2
: nonflammable 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 : TUNER
Voltages are taken with a VOM (Input impedance 10 M
).
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.
e
: TUNER
F
: AUDIO (ANALOG)
J
: AUDIO (DIGITAL)
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
2.
DIAGRAMS
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