SA-FW2010, SA-W2010, SS-F2010 - Sony Audio Service Manual (repair manual). Page 14

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SA-FW2010/W2010/SS-F2010
SA-FW2010/W2010/SS-F2010
14
14
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.
•      f  : Internal component.
•  2 : Nonfl ammable resistor.
•  5 : Fusible resistor.
•  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 : POWER ON
       
*
  : Impossible to measure
•  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
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
 
C E
B
These are omitted. 
Note: The components identifi ed by mark 0 or dotted 
line with mark 0 are critical for safety. 
 
Replace only with part number specifi ed.
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
– AMP Board –
– MAIN Board –
1
 
IC471 
4
2 V/DIV, 10 ns/DIV
20.4 ns
2.7 Vp-p
qa
 
IC001 
9 (XOUT)
500 mV/DIV, 20 ns/DIV
49.4 ns
0.9 Vp-p
2
 
IC473 
4
2 V/DIV, 50 ns/DIV
81 ns
4.2 Vp-p
3
 
IC401 
qf (XfsoOUT)
2 V/DIV, 10 ns/DIV
20.4 ns
4.4 Vp-p
4
 
IC401 
ej (FsoCKO)
2 V/DIV, 10 
Ps/DIV
20.8 
Ps
4.4 Vp-p
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