Block Diagram - Kenwood KAC-8402 Service Manual

KAC-8402/8452
QQ
3 7 63 1515 0
SPK
AL
IC1
ISOLATION
L
AMPLIFIER
LINE IN
(A)
ISOLATION
R
AMPLIFIER
SPK
AL
SPK
BL
IC2
ISOLATION
L
AMPLIFIER
LINE IN
(B)
ISOLATION
R
AMPLIFIER
SPK
X09
BR
L
LINE OUT
OUTPUT LEVEL
(A+B)
TE
L 13942296513
R
6dB
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2

BLOCK DIAGRAM

IC5 (X08)
HPF
FREQ
HPF
SW1
ST/MONO
IC7,8 (X08)
B.B
SW
SW0
AB/A
SW2 B.B
ST/MONO SW
X08
0dB
x ao u163
y
i
2 9
8
INPUT SENS
12dB
SW3
HPF/OFF
IC1 (X08)
12dB
INVERT
INPUT SENS
IC4 (X08)
HPF 12dB
IC6 (X08)
SW4
18dB
LPF
HPF/OFF/LPF
IC1 (X08)
HPF 12dB
INVERT
DC/DC
AVR
15V
CONVERTER
Q Q
3 6 7 1 3 1 5
0dB
co
.
9 4 2 8
Q201-225
Q241,242
MUTE POWER AMP
POWER AMP
MUTE
Q401-426
Q443,444
MUTE POWER AMP
MUTE POWER AMP
X09
DC DETECTOP
OVERLOAD PROTECTOR
P CON
CIRCUIT
OVER VOLTAGE
0 5 8 2 9 9 4 2 8
CIRCUIT
THERMAL
PROTECTION
32.5dB
m
9 9
SPEAKER
OUTPUT
SPEAKER
OUTPUT
SPEAKER
OUTPUT
SPEAKER
OUTPUT
P-CON
9 9
BATTERY