HT-4800DP, HT-DDW860, HTP-3200, SA-WMSP76 - Sony Audio Service Manual (repair manual). Page 3

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SA-WMSP76
SECTION 1
DIAGRAMS
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
a
: Through hole
•
: Pattern from the side which enables seeing.
•
Indication of transistor

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.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
Note on Schematic Diagram:
•
All capacitors are in 
µ
F unless otherwise noted.  p: 
µµ
F 50 WV
or less are not indicated except for electrolytics and tantalums.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
All resistors are in 
Ω
 and 
1
/
4 
W or less unless otherwise speci-
fied.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
Voltages are dc with respect to ground under no-signal condi-
tions.
no mark : Power on
•
Voltages are taken with a VOM (Input impedance 10M
Ω
).
Voltage variations may be noted due to normal preduction tol-
erances.
•
Signal path.
F
: AUDIO
• Abbreviation
CND
: Canadian model.
• IC BLOCK DIAGRAMS
IC301-STK404-100S (MAIN Board)
B
These are omitted.
C
E
1-1. CIRCUIT BOARD LOCATION
SWITCH BOARD
CONTROL BOARD
POWER TRANS BOARD
INPUT(CONTROL) BOARD
MAIN BOARD
1
2
3
4
5
6
7
8
9
10
11
12
SUB
The components identified by
mark 
0
or dotted line with mark
0
 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque 
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.

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