27
BLOCK DIAGRAM
Audio Block
Digital Block
Display Block
POWER Block
FAN
FAN1-2
+18V
FL
FR
SL
SR
CNT
LM94022BIMG
LM94022BIMG
LM94022BIMG
_HEAT_DET_1
_HEAT_DET_2
_HEAT_DET_3
CNT
SL
SR
FR
FL
SPK_ON1
SPK_ON1
FL
FR
SR
SL
CNT
FL
FR
SR
SL
CNT
CNT_LEVEL
SR_LEVEL
SL_LEVEL
FR_LEVEL
FL_LEVEL
SPK_ON1
FL
FR
SL
SR
CNT
_AVSS_DET1
+18V
CURR_AMP
DC_AMP
+VCC
POWER ON/STAND BY
STAND BY
FRONT PART
AMP PART
POWER & STAND-BY PART
+18V
+18V
+18V
POWER
HEAT
REGULATOR
-15V
REGULATOR
+5VL
REGULATOR
DOWN
STANDBY1
+12V
+15V
-15V
_P_LINE_FAIL
+35V
-35V
+VCC
-VCC
DETECT
UNBAL
+15V
REGULATOR
REGULATOR
MAIN TRANS
P_DOWN
+5VL
STANDBY2
SUB TRANS
INPUT PART
BAL
BAL
BAL
FL
SR
SL
CNT
CNT
SR
SL
FR
FR
FL
FL
+12V
FR
BUF
BUF
SR
SL
+12V
+12V
+12V
CNT
FL
FR
SL
SR
CNT
UNBAL
UNBAL
UNBAL
FL
FR
SL
SR
CNT
+12V
BUF
BUF
BUF
+5VL
R5F21246SNFP
OUT
RESET
SDA
SCL
I2C_DATA
I2C_SCK
DC OUT
DC IN
Flasher IN
RC-
IN
T
RC-
IN
DC-
IN
DC O
U
T
V_LE
D3
V_LE
D2
V_LE
D1
_P_LINE_FAIL
_P_CURR_FAIL
_P_AMP_FAIL
STANDBY1-2
FAN1-2
_HEAT_DET1-4
SPK_ON1-4
+5VL
+5VL
+5VL
S-80145ALMC
AT24C04
+5VL
OUT
IN
REMOTE CONTROL
KE
Y2
L
V
3
.
3
+
L
V
3
.
3
+
KE
Y2
NJM2831F33
L
V
3
.
3
+
L
V
5
+
u-COM PART
POSISTOR
POSISTOR
PO100-1
PO100-2
POWER
PROTECTION
A.P.OFF
SL_LEVEL
FR_LEVEL
FL_LEVEL
SR_LEVEL
CNT_LEVEL
COM
COM
COM
COM
COM
G
G
LINE DET
POSISTOR
PO100-3
+5VD
+5V
REGULATOR
G
G
G
C
+12V
REGULATOR
STAND-BY PART
AMP_B PART
AMP_A PART
DISPLAY ON/OFF
+29dB
+29dB
+29dB
+29dB
+29dB