KAC-X20
2
BLOCK DIAGRAM
L
IC1
40-200Hz
HPF
40-200Hz
LPF
IC3
MO/ST
IC12
ISO AMP
L
LINE IN
LINE OUT
LPF/OFF/HPF
FILTER
IC2
15,25Hz
ISF
IC4,5
IC7-9,13.15
BASS
40-100Hz
BOOST
MUTE
Q241
Q201-229
POWER AMP
SP OUT L
OFF/15/25
ISF
SENS
-1
40-200Hz
LINE OUT
R
IC16
ISO AMP
LINE IN
R
HPF
IC1
SP OUT R
40-100Hz
15,25Hz
IC4,5
IC2
ISF
BASS
BOOST
Q201-229
MUTE
Q242
Q601-606
CONTROL
IC5,Q3-14
D.D. CON.
P-CON
BATT
GND
Q1,2,16-18
AVR
f,GAIN
CONTROL
REMOTE
GAIN=0-18dB
f=40-100Hz
15V
(X08-432)
COMPONENTS DESCRIPTION
●
PREAMPLIFIER UNIT (X08-4320-10)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
HPF
IC2
Phase inversion amplifier (Lch only)
IC3
LPF
IC4
I.S.F 15Hz
IC5
I.S.F 25Hz
●
AUDIO UNIT (X09-8570-10)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC5
DC/DC converter
IC6
Temperature detection comparator
IC7,8,13
Bass boost amplifier
IC9
For bass boost gain and frequency adjustments
IC12,16
Input isolation amplifier
IC15
Bass boost mix amplifier
Q1,2
±
15V AVR
Q3~8
FET for DC/DC converter
