KF-42WE620/50WE620
98
KF-42WE620/50WE620
CN4702
SUR-L
SUR-R
6
L CH_OUT
10
R CH_OUT
12
SP-MUTE
13
SP-DC-DET
14
AU-17V
15
GND
16
GND
17
AU+17V
18
CLK
4
SDA
3
SET 9V
1
8
AU
IC4701
SURROUND PROCESSOR
LIN
FLIN
RIN
FRIN
RLIN
RRIN
SDA
TRUSURROUND
AGC
V+
SCL
CIN
SWIN
BUS I/F
I
2
C
OUTA
16
OUTB
LFINB
LFINA
LFONA
H-R IN
H-R IN
H-R OUT
H-R OUT
H-L -VS
D4707
Q4709
Q4701
+VS
+17V
-17V
MUTE
LFOUTB
36
35
17
+9V
+17V
-17V
+12V
+9V
CN4703
H-L(-)
(L)
(R)
H-L(+)
H-R(-)
H-R(+)
2
4
1
3
BBE/
TONE
IC4702
D
LPF
( AUDIO AMP )
CN8903
To A(2/2) BOARD
64
62
63
61
60
58
57
28
22 23
59
BBE/
TONE
BUFFER
Q4710
LPF
BUFFER
3
5
18
34
Q4711
LPF
1
7
IC4704
POWER AMP
7
11
5
4
2
6
3
Q4712
BUFFER
Q4702,4703
MUTE
Q4704
INITIALMUTE
Q4706,4707,4708
DC LEVEL DETECT
Q4713
BUFFER
Q4705
+17V
D4705
(SPEED UP)
IC4703
+12V REG.
I
O
-12V
IC4705
-12V REG.
I
O
AU BLOCK DIAGRAM