TA-SB500WR (serv.man2) - Sony Audio Service Manual (repair manual). Page 8

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TA-SB500WR
8
8
TA-SB500WR
Note for Printed Wiring Boards and Schematic Diagrams
Note on Printed Wiring Boards:
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.
DIAT AMP board is multi-layer printed board.
However, the patterns of intermediate layers have not been
included in diagrams.
Indication of transistor.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
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.
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
Note: When mesurering voltages and waveforms, con-
nect with HCD-SB500W (HCD-SB500W states:
DVD play).
no mark : DVD PLAY
: Impossible to measure
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.
F
: AUDIO
Abbreviation
AUS
: Australian model
CND : Canadian model
E3
: 240V AC Area in E model
E12
: 220V – 240V AC Area in E model
E32
: 110V – 240V AC Area in E model
KR
: Korean model
MX
: Mexican model
RU
: Russian model
SP
: Singapore model
TH
: Thai 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.
Waveforms
– DIAT AMP Board –
20.3 ns
4.3 Vp-p
125 ns
3.4 Vp-p
325 ns
3.2 Vp-p
82 ns
2.9 Vp-p
1 V/DIV, 50 ns/DIV
1 V/DIV, 200 ns/DIV
1 V/DIV, 50 ns/DIV
2 V/DIV, 10 ns/DIV
IC102 
rd
 (OSCO)
2
IC102 
tf
 (BCK)
3
IC107 
wd
 (X1)
4
IC114 
4
1
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