Read Sony HT-DDW980 / SA-WP980 / SS-MSP980 / SS-SRP980 Service Manual online
3
SA-WP980/SS-MSP980/SRP980
SECTION 1
DIAGRAMS
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
a
: Through hole.
•
:
Pattern from the side which enables seeing.
• Indication of transistor.
Note on Schematic Diagrams:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and dc with respect to ground under no-signal
conditions.
no mark : Power on
no mark : Power on
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Signal path.
F
: AUDIO
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• Circuit Boards Location (SA-WP980)
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
B
These are omitted.
C
E
Q
Note: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
INPUT CONTROL board
SWITCH board
LED board
MAIN board
POWER TRANS board
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