POWERED SUBWOOFER
14
BLOCK DIAGRAM
RCA-1B
OUTPUT
CURRENT
AMPLIFIER
LIN-
MODULES
HI PASS
SMPS
LIN+
HIGH PASS OUTPUT
SPEAKER
INPUT
U1A
AUTO ON/OFF
Q207---Q212
OVER CURRENT/
SPK OUTPUTT
RCA-1D
INPUT
RIN-
R.CH
RIN+
HIGH PASS OUTPUT
SPEAKER
INPUT
U1B
+
U3
_
AUTO ON/OFF
BUFFER
U7A
RCA-1A
INPUT
L.CH
LOP-
LOP+
SPEAKER
OUTPUT
RCA-1C
OUTPUT
HI PASS
ROP-
ROP+
SPEAKER
OUTPUT
U8B
SW102A
SW-2P2T
AGC
U201,U202,
U206
AUTO ON/OFF
BUFFER
U7A
LED301
DUAL LED COLOR
PROTECT
AUTO
MANLIAL
GREEN/ON
RED/OFF
-Vcc
+Vcc
0V
(35Hz/24dB)
LOW PASS FILTER
(40Hz-140Hz/24dB)
IEC1
IEC SOCKET
L
N
E
AC 115V/230V
!
OFF SET PROTECT
HIGHT PASS FILTER
U4,Q8,Q9,Q10,Q11
LEVEL
PHASE ADJUST
U5,Q12,Q13
(0-180)
140Hz/12dB
140Hz/12dB
130Hz/6dB
130Hz/6dB
U203,U204B
Q14
REGULATOR
+5V
0V
U205
WIRELESS RECEIVER
MODULES RF101
TP101
2KB
LEVEL CONTROL
U101B
MCU
U104
TP102
2KB
FREQUENCY CONTROL
U102B
TP103
2KB
PHASE CONTROL
U101A
LED DISPLAY
Q301---Q310,LED302
FAN CONTROL
Q202,Q203
DC
315MH
433MH
A
LEVEL MANUAL
CONTROL
SW101A
0V
-12V
0V
+12V
0V
SW2A
115V
230V
CRACKLING
+12V
ELIMINATE
315MH
433MH
UP
DOWN
SW1
REMOTE CONTROL
MODULES
A
433MH
315MH
+Vcc
RLY202
RLY201
FAN