KAC-PS811D/X811D
2
BLOCK DIAGRAM
●
PREAMPLIFIER UNIT (X08-4170-10)
Ref. No
Application / Function
Operation / Condition / Compatibility
IC1
ISF
Cutting super-low range of audio signal
IC2 (1/4~3/4)
BRF
Cutting bandwidth of audio signal
IC2 (4/4)
INV
Phase reversal of audio signal
IC3
OP amplifier
Voltage amplification, Buffer
IC4
E-VOL
Electronic volume
IC5
LPF
Cutting high-range of audio signal
IC6
LCD driver
LCD driver
●
AUDIO UNIT (X09-5790-10)
Ref. No
Application / Function
Operation / Condition / Compatibility
IC1
Isolation amplifier
Prevent noise from GND potential difference
IC2 (1/2)
Triangular wave generation
Reference signal for digitizing analog signal
IC2 (2/2)
Error amplifier
Error is compensated by the feedback from output
IC3
Comparator, Triangular wave generation
Digitizing by comparison of analog signal and triangular wave
COMPONENTS DESCRIPTION
LINE
LINE IN
AMP
CONT.
DRIVER
LCD
COMPARATOR
DEAD
TIME
TRIANGLE
WAVE
LOAD
OVER
DRIVER
MUTE
DC
OFFSET
DET.
CURRENT
INPUT
VOLTAGE
CONTROL
FAN
OVER
VOLTAGE
MEASURE
DET.
SWITCH
POWER
15V
AVR
AVR
+5V
+5V
SWITCH
SWITCH
ACCRESS
ROM
CORRECT
IC
RESET
THERMAL
PROTECT
BUFFER
I2C
VOLTAGE
DET.
DOWN
P CON
DET.
AMP
MUTE
COMPARATOR
ISOLATOR
CONT
DET.
DET.
ISO
I.F.S
B.R.F
INV
L.P.F
LCD
IC4
IC3
IC3
IC5
IC2
IC2
IC1
ED1
IC6
IC1
Q10
IC2,3
IC4,5
IC2
Q9
Q52-55
78
28,37-40,42-45,48-51
Q15,18,19,21,22,27,
IC6
Q73,
IC16
Q1-4
IC15
IC11
Q20
84,110
Q106-108
IC13
Q80
IC14
Q63
Q66
Q62
D.D CON
u-COM
Q83
IC10
29,30,
Q25,26,
SP OUT
P CON
BATT
GND
OUT
to H/U
REMOTE
IND
FAN
15/25Hz
FREQ
ON/OFF
OFF/6/12
NOR/REV
ON/OFF
LEVEL
LED
FA
N
AVR 5V
SW5V
15V
FREQ
BACK
LIGHT
D PWR
(X08-4170-10)
(X09-5790-10)
