Panasonic SA-HT40EE Service Manual page 46

SA-HT40EE
SCHEMATIC DIAGRAM - 7
DIGITAL AMP CIRCUIT
OSC
C503 0.47
FR
MODE2 C501 R501 5.6K
1000P
C505 R503
5.6K
0.47
+29V
C+
-29V
FL
C-
R549 R552
120K 68K
OSC
SL C553 0.47
MODE1 C551 R521 5.6K
1000P
R523
C555
5.6K
WA521 0.47
0
+29V
SW+
-29V
SR
SW-
R569 R572
120K 68K
R570
C688
150K
6.3V100
: +B SIGNAL LINE : -B SIGNAL LINE
: MAIN SIGNAL LINE
IC551
C1BA00000407
POWER AMP IC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
C529 C522
0.1 0.015
C507
C509 C513 C515 C523
330P
0.1 0.1 220P 0.015
C521 C520
R504
C511 220P 220P
10
0.1
R505
10
C524
220P
R514
C525
10
220P
LB502
J0JKB0000020
C544
35V470
C545
LB503 35V470
J0JKB0000020
R515
10
IC552
C1BA00000407
POWER AMP IC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
C579 C572
0.1 0.015
C557 C559 C563 C565 C573
330P 0.1 0.1 220P 0.015
C571 C570
R524
C561 220P 220P
10
0.1
R525
10
C574
220P
R534
10 C575
220P
LB504
J0JKB0000020
C594
35V470
C595
LB505 35V470
J0JKB0000020
R535
10
17 18 19 20 21 22 23
C512 C508 C506
0.1
0.1 330P
C510
R500
0.1
R502
5.6K
5.6K
C502 C504
0.47 0.47
R5512 R5513
47K 47K
WA500
0
WA504 C5506
C5507
16V10
16V10
0
L500
22 R506
22
ETQA15B220
C530
0.68
C532
0.1
C533
0.1
C531
0.68
R507
22
L501
R512
22 R509
ETQA15B220 120K 68K
Q592 Q591
B1ABCF000011 B1ABCF000011
DC DETECT SWITCH DC DETECT SWITCH
17 18 19 20 21 22 23
C562
C558 C556
0.1 0.1 330P
C560
R520
0.1 R522
5.6K
5.6K
C552 C554
0.47 0.47
WA506
0
WA510
0
L502
22 R526
ETQA15B220 22
C580
0.68
C582
0.1
C583
0.1
C581
0.68
R527
22
L503
R529 R532
22
ETQA15B220 120K 68K
46
Q5006
B1GBCFJJ0007
VOLTAGE REGULATOR
MODE1 PWR_AMP
SIGNAL
+5V
Q5001
B1GDCFJJ0008
R5001 R5002 R5003
SWITCH
3.3K 3.3K 3.3K
FR+
MUTE_ALL
R5004
3.3K
MODE1
FL+
D5003
B0ACCK000005
MUTE_SC
D5004
B0ACCK000005
R5005
WA503
3.3K
0
MODE2
DC_DET
R5006
3.3K
MODE3
C5002 C5003 C5001
16V33 16V33 16V33
FR+
FL+
MODE3
SR+
SL+
SR+
SL+
SW+
C+
SW-
C-
SA-HT40EE DIGITAL AMP CIRCUIT
2/2
Q5002
B1GDCFJJ0007
SWITCH
WA527
0
Q5003
B1GDCFJJ0007
SWITCH
W502
0
Q5004
B1GDCFJJ0007
SWITCH
FR+
1
FL+
2
SPEAKER
GND
3
4
JK501
SR+
1
SL+
2
SPEAKER
GND
3
GND
4
JK502
SW+
1
C+
2
SPEAKER
SW-
3
C-
4
JK503