KEF PSW1000, Руководство по обслуживанию, Страница: 10 / 16

POWERED SUBWOOFER
10
BLOCK DIAGRAM
RCA
HIGHT PASS FILTER
L IN
CURRENT AMPLIFIER
L/F-
POWER SUPPLY
HIZ
AC/DC
L/F+
LOZ IN
U6
PRE-AMP
LOZ
INPUT
U1A
AMP DRIVER
AUTO ON/OFF
Q14,Q15
Q16,Q17
OVER CURRENT/
OUT
RCA
R/F IN
R/F-
HIZ
R/F+
LOZ IN
PRE-AMP
LOZ
INPUT
U1B
T1,D11
+
U3A,U4A
NOTCH DEPTH
VR1A
20KBx2
-
AUTO ON/OFF
BUFFER
U2A
VR2 20KA
LEVEL
U7
RCA
L OUT
HIZ
L/F- L/F+
LOZ OUT
LOZ
OUTPUT
RCA
R/F OUT
HIZ
R/F- R/F+
LOZ OUT
LOZ
OUTPUT
U8B
SW1A
SW-2P2T
ALC
U9,U10B
U11
ADJUSTABLE
FILTER
U3B,U4B
VR1B 20KBx2
AUTO ON/OFF
BUFFER
U2B
LED1 2LED
PROTECT
PLY1
MUTING
AUTO
MANLIAL
GREEN/ON
RED/OFF
SELECT SW-2P1T
+Vcc
-Vcc
0V
REGULATOR
U12,U13
(115V/230V)
+15V -15V
PHASE ADJUST
U8A
VR3
20KBx1
INPUT
CROSSOVER FREQUENCY
(0-180)
(50Hz-130Hz) (50Hz-130Hz)
IEC1 IEC SOCKET
L
N
E
AC 115V/230V
SW3
!
!
OFF SET PROTECT