KAC-PS521/X521
2
BLOCK DIAGRAM
(X09-5760-10)
(X08-4150-10)
I.S.A
I.F.S
L.P.F
H.P.F
LCD
DRIVER
LCD
V PROT.
TEMP
PROT.
IC1,10
IC1
IC3,4,6
IC5
ED1
IC7
MUTE
POWER AMP
Q101,102
CONT.
AMP
u-COM
5V AVR
FAN AVR
FAN
-15V AVR
+15V AVR
DC/DC
CONVERTER
SW 5V
AVR
Q69
Q66
Q356,358
IC2
Q61
Q62
IC6
P-CONT
GND
BAT
to POWER AMP
to H/U
CURRENT PROT
DC PROT
●
PREAMPLIFIER UNIT (X08-4150-10)
Ref. No
Application / Function
Operation / Condition / Compatibility
IC1
Infrasonic filter
Controlled by microprocessor
IC3
Tone and volume variable
IC4
6dB voltage amplification
IC5
HPF
LPF
IC6
Lch : 6dB voltage amplification
Rch : Signal 180 reverse and 6dB voltage amplification
IC7
LCD driver
Controlled by microprocessor
●
AUDIO UNIT (X09-5760-10)
Ref. No
Application / Function
Operation / Condition / Compatibility
IC1
Buffer
IC2
DC/DC converter
IC3
AMP communication buffer
COMPONENTS DESCRIPTION