DAV-IS50, SA-WSIS50 - Sony Audio Service Manual (repair manual). Page 13

SA-WSIS50

Note on Printed Wiring Board:
•    

: parts extracted from the component side.

•    

: parts extracted from the conductor side.

•      

: internal component.

•   

: Pattern from the side which enables seeing.

(The other layers’ patterns are not indicated.)

Caution:
Pattern face side:  Parts on the pattern face side seen from
(Side B)  

the pattern face are indicated.

Parts face side:  

Parts on the parts face side seen from

(Side A)  

the parts face are indicated.

•  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.
•    

: internal component.

• 

 : nonfl ammable resistor.

• 

  : fusible resistor.

•   

: panel designation.

Note:
The components identifi ed
by mark   or dotted line 
with mark   are critical 
for safety. Replace only 
with part number specifi ed.

Note:
Les composants identifi és 
par une marque   
sont critiques pour la 
sécurité. Ne les remplacer 
que par une piéce portant 
le numéro spécifi é.

•  A : B+ Line.
•  Voltages and waveforms are dc with respect to ground
  under no-signal (detuned) conditions. 
  no mark : TUNER (FM/AM)
   

*  

: Impossible to measure

•  Voltages are taken with a VOM (Input impedance 10 MΩ).
  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
 AR  : 

Argentina 

model

 AUS : 

Australian 

model

 CND : 

Canadian 

model

  E32 

: Latin America models except Argentina

  EA 

: Saudi Arabia model

 RU  : 

Russian 

model

  SP 

: Singapore model

 TH  : 

Thai 

model