Toshiba SD-47HKSR Service Manual page 10

Power Amplifier Diagram
IC501
36
VSIG
35
VSIG
C501 C502
104
104
34
VREG2
DAGND 33
VREG2
OUT1_B 32
OUT1_B INRB
31
OUT1_A
OUT1_A INRA
30
OUT2_B
OUT2_B INLB
OUT2_A 29
OUT2_A INLA
28
TWARN
C503
104
27
DAGND FAULT
26
TRI-STATE
R501 10K
25
EAPD
EAPD PWRDN
24
CONFIG
DA3.3V
23
VL
22
VREG1
C504 C505
21
VREG1
104 104
20
GNDR1
19
GNDREF
DAGND
IC502
36
VSIG
35
VSIG
C506
C507
104
104
34
VREG2
DAGND 33
VREG2
OUT4_B 32
OUT4_B INRB
31
OUT4_A
OUT4_A INRA
30
OUT5_B
OUT5_B INLB
OUT5_A 29
OUT5_A INLA
28
TWARN
C508
104
27
DAGND FAULT
26
TRI-STATE
R502 10K
EAPD 25
EAPD PWRDN
24
CONFIG
DA3.3V
23
VL
22
VREG1
C509 C510
21
VREG1
104 104
20
GNDR1
19
GNDREF
DAGND
DDX2060
1
GNDS DAGND L501
30uH
2
OUTNR
C515
3
104
OUTNR
R504
+34V
0
4 C555
VCC2N
471
5 C546 C516 104
PGND2N
1UF
DAGND DAGND
6
PGND2P
C517
104
R516
7
VCC2P 15 OHM
R505
C511
8 DAGND 0
OUTPR 104 L502
C518
30uH
9
104
OUTPR
10
OUTNL
L503
C519
11 C552 30uH 104
OUTNL
1000UF
+34V R506
C556 0
12
VCC1N
471
13
C520 104
PGND1N 1UF
DAGND DAGND
14 C547
PGND1P
R517
C521 104
15 OHM
15
VCC1P
R507
16 C512 DAGND 0
OUTPL
104
L504
C522
30uH
17 104
OUTPL
18
NC
DDX2060
1
GNDS DAGND
L505
30uH
2
OUTNR
C523
3
104
OUTNR
R508
+34V
0
4 C557
VCC2N
471
5 C548 C524 104
PGND2N
1UF
DAGND DAGND
6
PGND2P
C525
104
R518
7
VCC2P 15 OHM
R509
8 C513
DAGND 0
OUTPR 104 L506
C526
30uH
9 104
OUTPR
10
OUTNL
L507
C527
30uH
11 C553 104
OUTNL
1000UF
+34V R510
C558 0
12
VCC1N 471
13
C528 104
PGND1N 1UF
DAGND DAGND
C549
14
PGND1P
R519
C529 104
15 OHM
15
VCC1P
R511
16 C514 DAGND 0
OUTPL
104
L508
C530
30uH
17
104
OUTPL
18
NC
IC503
36
VSIG
35
VSIG
C531
C532
104
104
34
VREG2
DAGND 33
VREG2
32
OUT6_B
OUT6_B INRB
OUT6_A 31
OUT6_A INRA
OUT3_B 30
OUT3_B INLB
29
OUT3_A
OUT3_A INLA
28
TWARN
C533
104
27
DAGND FAULT
26
TRI-STATE
R503 10K
EAPD 25
EAPD PWRDN
24
CONFIG
DA3.3V
23
VL
L513
INDUCTOR4
1 3 L- 22
VREG1
C534 C535
21
VREG1
104 104
2 4
L+
20
GNDR1
1 3
R-
19
GNDREF
2 4 R+ DAGND
L514
INDUCTOR4
L515
INDUCTOR4
1 3
SR-
2 4 SR+
1 3
C-
2 4 C+
L516
INDUCTOR4
- 2-5-
DDX2060
1
GNDS DAGND
L509
30uH
2
OUTNR
C538
3
OUTNR
R512
+34V
0
C559
4
VCC2N
471
5 C550
C539 104
PGND2N
1UF
DAGND DAGND
6
PGND2P
C540
R520
7
15 OHM
VCC2P
R513
8 C536 DAGND
0
OUTPR
104 L510
C541
30uH
9 104
OUTPR
10
OUTNL
L511
C542
11 30uH
C554 104
OUTNL
+34V 1000UF
R514
C560 0
12
VCC1N 471
13 C543
PGND1N 1UF
DAGND DAGND
14 C551
PGND1P
R521
C544
15 OHM
15
VCC1P
R515
C537
16 DAGND 0
OUTPL
104
L512
C545
30uH
17
104
OUTPL
18
NC
SUB+ SUB-
SL+ SL-
SR+ SR-
C+ C-
L+ L-
R+ R-
JK501
102 102 102 102 102 102 102 102 102 102 102
DAGND
104
104
L517
INDUCTOR4
1 3
SUB-
2 4 SUB+
1 3 SL-
2 4
SL+
L518
INDUCTOR4
104
104
102