SRS-GD50IP - Sony Audio Service Manual (repair manual). Page 9

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SRS-GD50iP
SRS-GD50iP
9
9
For Schematic Diagrams.
Note:
•  All capacitors are in μF unless otherwise noted. (p: pF) 50 
WV or less are not indicated except for electrolytics and 
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.)
• 
A : B+ Line.
•  Voltages and waveforms are dc with respect to ground 
under no-signal conditions.
  no mark : iPod
•  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 
tolerances.
•  Circled numbers refer to waveforms.
• Signal path.
 
F : 
AUDIO
 
E : 
USB
 
L  : LINE IN
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)
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.
• Waveforms
– MAIN Board –
1
IC111 2 (IN)
1 V/DIV, 50 ns/DIV
81 ns
2.5 Vp-p
4
IC501 qd (Xout)
1 V/D, 100 ns/DIV
200 ns
3.4 Vp-p
20.8 
Ps
4 Vp-p
2
IC113 7 (LRCK)
1 V/DIV, 10 
Ps/DIV
3
IC113 8 (BCK)
1 V/DIV, 200 ns/DIV
328 ns
4.2 Vp-p
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