Read Sony SRS-NWGU50 Service Manual online
SRS-NWGU50
SRS-NWGU50
7
7
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF 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
specifi ed.
•
C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
•
A : B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
• Voltages are taken with VOM (Input impedance 10 M
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
AUDIO
For Printed Wiring Boards.
Note:
•
•
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.)
• Indication of transistor.
C
B
These are omitted.
E
Q
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
1
IC107 2 (IN)
1 V/DIV, 50 ns/DIV
81 ns
2.5 Vp-p
4
IC300 qd (Xout)
1 V/D, 100 ns/DIV
200 ns
3.2 Vp-p
20.8
Ps
4 Vp-p
2
IC108 7 (LRCK)
1 V/DIV, 10
Ps/DIV
3
IC108 8 (BCK)
1 V/DIV, 200 ns/DIV
328 ns
4.2 Vp-p
• Waveforms
– MAIN Board –
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