STR-DA2400ES, STR-DG920 (serv.man3) - Sony Audio Service Manual (repair manual). Page 3

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STR-DA2400ES/DG920
STR-DA2400ES/DG920
3
3
2.  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.
•      f  : internal component.
•  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.
•  H : adjustment for repair.
•  Voltages and waveforms are dc with respect to ground 
under no-signal (detuned) conditions.
  no mark : TUNER
•  Voltages are taken with a VOM (Input impedance 10 M
Ω). 
Voltage variations may be noted due to normal production 
tolerances.
• Signal path.
  J : 
AUDIO 
(DIGITAL)
  F : 
AUDIO 
(ANALOG)
  E : 
VIDEO
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. 

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.
•  DIGITAL VIDEO board is multi-layer printed board.
  However, the patterns of intermediate-layers have not 
been included in diagrams.
• Lead layouts
surface 
CSP (Chip Size Package) 
Lead layout of conventional IC 
•  The Voltage and waveform of CSP (Chip size package) 
cannot be measured, because its lead layout is different 
from that of conventional IC.
• Abbreviation
  BR 
: Brazilian model
  CND  : Canadian model
  ECE  : Continental European, East European and 
   
  Russian models
 TW  : 
Taiwan 
model
∗  Replacement of IC3601 on the DIGITAL VIDEO 
board used in this set requires a special tool.
∗  Replacement of IC3601 on the DIGITAL VIDEO 
board used in this set requires a special tool.
• Abbreviation
  BR 
: Brazilian model
  CND  : Canadian model
  ECE  : Continental European, East European and 
   
  Russian models
 TW  : 
Taiwan 
model
– SURR SPEAKER Board (Component Side) –
– MAIN Board (Component Side) –
Former : 1-875-899-11 or
 
  1-875-899-12
New : 
1-875-899-13
Former : 1-875-941-11 or
 
  1-875-941-12
New : 
1-875-941-13
– MICON Board (Component Side) –
– VIDEO Board (Component Side) –
Former : 1-875-881-11 or
 
  1-875-881-12
New : 
1-875-881-13
Former :  1-875-885-11
New : 
1-875-885-12,
 
  1-875-885-13 or
 
  1-875-885-14
Ver. 1.4

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 pièce portant le nu-
méro spécifi é.
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