Read Sony DAV-SR1W / TA-SR1WR Service Manual online
9
9
TA-SR1WR
TA-SR1WR
SECTION 3
DIAGRAMS
• Circuit Boards Location
SWITCH board
SPK(L) board
DIAT AMP board
SPK (R) board
JACK board
DIAT BUILT PD board
DIAT POWER board
POWER LED board
• Waveforms
– DIAT AMP Board –
– DIAT AMP Board –
Note on Schematic Diagrams:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
• %
: indicates tolerance.
•
C
: panel designation.
•
A
: B+ Line.
• Voltages and waveforms are dc with respect to ground
under no signal (detuned) conditions.
no mark: POWER ON
no mark: POWER ON
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
K
: AUDIO
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
Caution:
Pattern face side:
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.
4
IC114
4
2
IC102
tf
(BCK)
1
IC102
rd
(OSCO)
3
IC107
wd
(X1)
20.3 ns
4.5 Vp-p
125 ns
3.5 Vp-p
325 ns
2.5 Vp-p
1 V/DIV, 50 ns/DIV
1 V/DIV, 50 ns/DIV
2 V/DIV, 10 ns/DIV
1 V/DIV, 100 ns/DIV
81.3 ns
2.5 Vp-p
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
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