SRS-ZX1 - Sony Audio Service Manual (repair manual). Page 12

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SRS-ZX1
SRS-ZX1
12
12
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.
•  Power voltage is dc 16V and fed with regulated dc power 
supply from DC IN 16V jack (J951).
•  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
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
• Abbreviation
 AUS : 
Australian 
model
 CH  : 
Chinese 
model
 CND : 
Canadian 
model
 KR  : 
Korean 
model
For Printed Wiring Boards.
Note:
•  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:
Parts face side:
(Conductor Side)
Pattern face side: 
(Component Side)
Parts on the parts face side seen from   
the pattern face are indicated.
Parts on the pattern face side seen from   
the parts face are indicated.
• Waveforms
– DSP Board –
IC401
[WY (CLKIN)
500 mV/DIV, 20 ns/DIV
40.7 ns
1.2 Vp-p
IC901
 (OUT)
10 V/DIV, 5 
μs/DIV
1.1
μs
17.2 Vp-p
Q901 (Drain)
5 V/DIV, 1 
μs/DIV
3.4
μs
7.4 Vp-p
IC904
 (EXT), Q901 (Gate)
5 V/DIV, 1 
μs/DIV
3.4
μs
7.4 Vp-p
Ver. 1.3
Note: The components identifi ed by mark 0 or dot-
ted line with mark 0 are critical for safety. 
 
Replace only with part number specifi ed.
Note: Les composants identifi és par une marque 
0 sont critiques pour la sécurité. 
 
Ne les remplacer que par une piéce portant 
le numéro spécifi é.
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