Kenwood kac-9104d Service Manual page 2

+6dB
L
IC1
ISO-AMP
R
L
R
L+
L-
R-
R+
IC6(2/2)
SUMMING
AMP
IC6(1/2)
TRIANGLE
WAVE
NF
dB
LEVEL DIAGRAM
50
40
30
20
10
0
ISO AMP FILTER D CLASS POWER AMP
IC3(1/2)
I.S.F
IC2(2/2)
15Hz
INV
25Hz
SEL I.S.F
SEL.
IC8,9
IC7
DEAD
COMP
TIME
D21,22 Q30
Q24-27
± 15V
± B
AVR
Q4,5
AUTO
P-CON
6dB
SENS.
VOL
IC4
IC3(2/2)
Q315
MUTE
Q105-107,
Q102-104,108,109 Q110-112
Q701-704
LEVEL
DRIVE
SIFT
Q101
D-AMP
ON/OFF
IC17 (2/2)
IC13 Q307-311
OVERLOAD THERMAL DC-OFFSET
DET DET
+ HB
AVR
IC15
DC/DC
CON
Q2,3
POWER
ON/OFF
FREQ=40Hz
IC5
Bass
L.P.F
Boost
FREQ LEVEL
(50~200Hz) 0~18dB
Q313,314
ATT
FINAL
LC FILTER
MOS-FET
DET
LC FILTER
+35dB
SP
OUTPUT
P-CON
BATT.
GND