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SA-HT330GCT / SA-HT330GCP
22.6. DIGITAL AMPLIFIER CIRCUIT
SCHEMATIC DIAGRAM - 20
DIGITAL AMPLIFIER CIRCUIT
DC_DET
1
HOP_DA
2
SW5V
3
MODE_SUR
4
LSURR
5
AGND
6
TO
RSURR
7
MAIN
MODE_FR
8
CIRCUIT
FRONTL
(CN2000) ON
9
AGND
SCHEMATIC
10
FRONTR
DIAGRAM-16
11
MODE_SW_C
12
CENTER
13
AGND
14
SUBWOOFER
15
M+9V
16
CN2002
1
TO FAN
2
CN2003
E2000
+27V_VDD
1
+27V_VDD
TO
2
GND
SMPS MODULE
3
CIRCUIT (CN2)
GND
4
ON SCHEMATIC
-27V_VSS
5
DIAGRAM-18
-27V_VSS
6
H2001/W2001
SURR_L
12
GND
11
SURR_R
10
GND
9
FRONT_L
TO
8
GND
MAIN
7
FRONT_R
CIRCUIT
6
(H2001/W2001)
GND
5
ON SCHEMATIC
CENTER
4
DIAGRAM-16
GND
3
SUBWOOFER
2
GND
1
CN2001
TO
1
AC INLET
2
CIRCUIT
3
(CN2003)
4
ON SCHEMATIC
DIAGRAM-19
5
CN2004
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5
9
6
8
7
3
2
L2701
J0JKB0000020
C2700
C2703
C2704
C2706
0.1
35V470
35V470
35V470
C2705
C2707
C2701
C2702
35V470
35V470
0.1
35V470
L2700
J0JKB0000020
1
23
25
27
22
24
26
C2533
0.01
C2534
0.01
C2433
0.01
C2434
0.01
C2633
0.01
C2634
0.01
: +B SIGNAL LINE
: -B SIGNAL LINE
DC_DET
HOP_DA
SW_5V
MODE_SUR
LSURR
S_GND
RSURR
MODE_FR
FRONTL
F_GND
FRONTR
MODE_SW_C
CENTER
C_GND
SUBWOOFER
+27V_VDD
B1ABCF000176
DC DETECT SWITCH
-27V_VSS
DC_DET
R2808
47K
+27V_VDD
R2803
47K
SL
R2802
47K
R2801
SR
47K
FL
R2800
47K
FR
R2805
47K
C
R2804
R2806
47K
10K
SW
R2809
10K
-27V_VSS
84
: MAIN SIGNAL LINE
Q2801
Q2800
B1ADCE000012
DC DETECT SWITCH
D2800
B0ACCK000005
Q2800
D2801
R2807
B0ACCK000005
10K
Q2801
D2802
B0ACCK000005
R2810
C2801
C2800
15K
10
10
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