Active Subwoofer (Sb-Hwa520) - Panasonic SU-HTB550PH Service Manual

6.2.

Active Subwoofer (SB-HWA520)

6.2.1. DAMP CIRCUIT (1/2)
1 2 3
SCHEMATIC DIAGRAM - 13
A
H
DAMP CIRCUIT
B
I CN1002
TO 1
IDSET 4
POWER BUTTON
+5V_GND 3
CIRCUIT (H1004*)
POWER_SW 2
IN SCHEMATIC
MODE_SW 1
DIAGRAM - 15 4
C
CN1000
AGND 1
CH2_IN_LCH 2
AGND 3
CH2_IN_RCH 4
+5V 5
+5V_GND 6
PCONT 7
LINK_LED 8
IDSET 9
RF_MUTE 10
TO
DGND 11
D
DIGITAL RECEIVER
DC_DET 12
MODULE
NC 13
NC 14
NC 15
NC 16
NC 17
NC 18
LED1 19
LED2 20
NC 21
NC 22
E
CN1003
LINK_LED 1
TO LED 5V_GND 2
5V 3
H1001*
+5V 7
DC_DET 6
-23.5V 5
TO SMPS MODULE
+5V GND 4
PGND 3
F
+23.5V 2
PCONT 1
G
NOTE: " * " REF IS FOR INDICATION ONLY
H
1 2 3
4 5 6
: +B SIGNAL LINE : -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
R1000
150K
MODE_SW
Z1000 Z1003
1 2 3 1 2 3
C1000
C1003 C1010
0
0.1 0
R1034 0
+5V
PCONT
RF_MUTE
DC_DET
D1000
0
C4000
0.1
C5603
0.1
R1003 0
C1009
6.3V680
-23.5V
PGND
Q1003
B1ACKD000006
+5V POWER SUPPLY
R5770 R1020
10K 1K
Q1009
B1GBCFJJ0051
VOLTAGE SUPPLY
CONTROL
4 5 6
7 8 9
+23.5V
Q2002
R2000
22 R2004 C2000
B1AAKD000012
2.7K 0.1
+16V VOLTAGE
REGULATOR
R2005
27
D2000 C2001 R2006
B0BC01600013 25V100 10K
Q2010
B1ACCF000093
STABILIZER
C2010 R2013
25V100 8.2K
R2012 C2011 R2014
2.7K 0.1 560
Q2011
B1ACKD000006
-16V VOLTAGE
R2010
22 REGULATOR
7 8 9
26
10 11 12
K1004
0
C2006
0.1
R3107
R5769
R3108
6.8K
C3106 C3105
100P 1000P
5 6 7 8
+VCC
-VCC
4 3 2 1
R3204
10K
C2015
0.1
R3206
0
1/2 2/2
SC-HTB550PH (SB-HWA520PH) DAMP
10 11 12
13 14
2
P1
390
1.2K
IC3002
C0ABBB000244
DUAL OP-AMP
1
TO DAMP
CIRCUIT (2/2)
CIRCUIT
13 14