HT-SF2300, HT-SS2300, STR-KS2300 - Sony Audio Service Manual (repair manual). Page 15

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STR-KS2300
STR-KS2300
15
15
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 :  fl usible 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.
•  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.
•  Waveforms are taken with a oscilloscope.
  Voltage variations may be noted due to normal production 
tolerances.
•  Circled numbers refer to waveforms.
• Signal path.
 
J : 
AUDIO 
(DIGITAL)
 
F : 
AUDIO 
(ANALOG)
 
f : 
TUNER
 
E : 
HDMI
 
N : 
MIC
• Abbreviation
 AUS : 
Australian 
model
 CH  : 
Chinese 
model
 CND : 
Canadian 
model
 TH  : 
Thai 
model
 TW  : 
Taiwan 
model
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:
Parts face side:
(SIDE A)
Pattern face side: 
(SIDE B)
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.
•  Circuit Boards Location
DISPLAY board
IR board
MAIN board
HDMI board
IO board
TUNER (FM/AM)
DCAC board
SMPS board
Caution:
Pattern face side:
(Conductor Side)
Pattern 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.
Ver. 1.1
Note: 
The components identifi ed by mark 
0 or 
dotted line with mark 
0 are critical for safety. 
 
Replace only with part number speci-
fi
 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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