XM-ZZR3301 - Sony Car Audio Service Manual (repair manual). Page 12

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XM-ZZR3301
12
SECTION  3
DIAGRAMS
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.
• 
2 : nonfl ammable 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.
• 
B : B– Line.
•  Power Voltage is dc 14.4 V and fed with regulated dc 
power supply from + 12 V and REM terminals.
•  Voltage and waveform are dc with respect to ground un-
der no-signal condition.
•  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.
•      a : 
Through 
hole.
• 
 : Pattern from the side which enables seeing.
  (The other layers' patterns are not indicated.)
Caution:
Pattern face side: 
(SIDE B)
Parts face side:
(SIDE A)
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.
Note: 
The components identi-
fi
 ed by mark 
0 or dotted 
line with mark 
0 are criti-
cal 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 nu-
méro spécifi é.
• Waveform
  IC901 
1 V/DIV, 5 μsec/DIV
2.2 Vp-p
17.5 μsec
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