CIRCUIT CONNECTION DIAGRAM & BLOCK DIAGRAM
2
BLOCK DIAGRAM
5.1CH
L R SL SR
SW
L
R
C
SL
SR
LED
LPF
L
L
R
C
SW
SL
SR
L
L R SL SR
C
SW
C
SW
CPU
L R
INPUT BOARD
MAIN POWER AMPLIFYING BOARD
VOLUME
CONTROL
INPUT
B
U
F
F
E
R
A
M
P
L
IF
IC
A
T
IO
N
POWER
AMPLIFICATION
POWER
AMPLIFICATION
POWER
AMPLIFICATION
AMPLIFICATION
OUTPUT BOARD
REMOTE
CONTROL
RECEPTION
DISPLAY
POWER
SUPPLY
FRONT PANEL'S CONTROL BOARD
SP550S SERVICE MANUAL
OUTPUT BOARD
~14V
0
~14V
V
s
R
M
b
1
+
c
1
b
2
a
2
XP3
XS3
XS2
V
s
R
M
b
1
+
c
1
b
2
a
2
1.
1
.
1
.
2.
2
.
2
.
3
.
3
.
3.
4
.
4
.
5
.
5
.
T
ra
n
s
fo
rm
e
r
c
2
c
2
6
.
6
.
d
2
e
2
f2
G
N
D
g
2
XS4
XP4
d
2
e
2
f2
G
N
D
g
2
7
.
7
.
8
.
8
.
9
.
9
.
1
0
.
1
0
.
1
1
.
1
1
.
SL
R
L
SL
R
L
GND
GND
C
SR
GND
GND
C
SR
1.
1.
1.
1.
2.
2.
2.
2.
3.
3.
3.
4.
4.
3.
GND
L
R
GND
L
R
SW
SR
SL
C
SW
SR
SL
C
1.
1.
1.
1.
2.
2.
2.
2.
3.
3.
3.
4.
4.
3.
XS1
XP2
-
+
SW SPEAKER
SW
INPUT BOARD
POWER AMPLIFYING BOARD
FRONT PANEL'S BOARD
CIRCUIT CONNECTION
DIAGRAM
Содержание SP550S
Страница 1: ...ENGLISH SP550S Service manual...
