AV-48WP74
AV-56WP74
AV-48WP74
AV-56WP74
No.52105
No.52105
2-15
2-16
MAIN PWB CIRCUIT DIAGRAM (5/12) SHEET 5
1.0Vp-p
[H]
2.0Vp-p
[H]
2.1Vp-p
[H]
2.1Vp-p
[H]
1.3Vp-p
[H]
IC1501-44
2.8Vp-p
[H]
IC1501-47
IC1501-53
IC1501-56
1.3Vp-p
[H]
IC1501-60
IC1501-22
IC1501-63
VOLTAGE (V)
PIN NO.
VOLTAGE (V)
PIN NO.
VOLTAGE (V)
PIN NO.
VOLTAGE (V)
PIN NO.
IC1501
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
IC1502
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3.9
4.5
3.9
4.5
4.4
0
5.0
4.4
4.5
3.9
4.4
4.4
0.4
0
3.9
4.4
4.4
4.4
4.4
0.1
5.0
0
4.4
3.9
4.4
4.4
0.1
5.0
4.5
3.9
4.5
0
4.0
4.0
0
0.1
4.4
4.5
3.7
4.5
3.5
9.1
4.5
6.6
4.5
3.8
4.4
0
6.3
4.5
4.4
4.5
6.2
4.5
4.5
5.6
0
4.3
4.4
5.3
4.4
4.4
5.2
4.5
0
4.0
4.0
0
0
0
5.1
0
0
0
0
0
5.1
0
0
5.1
S1DC
R1543
TV_R1
C_SWSUB
VY_SWSUB
R_SWSUB
R1510
L_SWSUB
R1553
Y1501
R1554
Y1504
Y1503
C1510
Y1502
L_BSA
AV_9V
L_BSD
R_BSA
R_SWMAIN
BLEV2
BLEV1
L_SWMAIN
GRVOUT
R_BSD
TV_R2
TV_L2
TV_V2
VY_SWMAIN
C_SWMAIN
D1594
HP_R
C1538
R1509
C1539
SDA0
HP_L
SCL0
D1593
BBE_LO
CN100H
BS_5V
V3
L3
MON_R
R3
MON_L
MON_V
MON_Y
MON_C
C1505
V_BS
C_BSD
Y_BSD
S2
R2
S2_2
L2
V2
C2
Y2
V_RT
L1
S1
Y_BSDGND
R1582
R1504
SUR_SW
BBE_SW
SUR_EFCT
SUR_MONO
AMP_MU
D1592
IC1501
R1
D1596
R1524
D1591
V1
S2_1
C1
Y1
HP_MU
C1501
R1530
C1502
IC1502
R1550
R1561
R1563
R1562
C1532
R1560
C1531
Q1531
VY_SWAP
R1521
R1505
R1506
R1512
R1538
R1539
R1577
R1520
R1578
R1579
R1523
R1502
R1525
R1508
R1507
R1552
R1549
R1551
R1537
R1536
R1535
R1547
R1501
R1548
TV_L1
D1595
R1522
R1526
R1527
R1528
R1529
C1519
R1534
R1533
R1519
R1518
R1517
R1516
R1515
R1514
/16
N
GND
C4
GND
Y4
GND
V4
GND
L4
GND
R4
S4_DET
GND
NC
QGF1201C2-13
Y3
RV3
C3
S2-3
S-3
V4
LV4
Y4
RV4
C4
S2-4
S-4
LV5
V5
RV5
ADR
YIN1
BIAS
CIN1
LOUT1
VOUT1
ROUT1
TRAP1
YOUT1
VGND
COUT1
LV5
V6
RV6
LTV
TV
RTV
CXA2069Q
MA8100/M/-X
/16
/25
M62320FP-X
/50
QETN1HM-226Z
/16
N
MA8100/M/-X
V1
LV1
Y1
RV1
C1
S2-1
S-1
V2
LV2
Y2
RY2
C2
S2-2
S-2
V3
LV3
SCL
SDA
AGND
DC_OUT
COUT3
LOUT3
YOUT3
ROUT3
VOUT3
VCC
LOUT2
V/YOUT2
ROUT2
TRAP2
COUT2
MUTE
S2-2
SCL
SDA
SUR_EFCT
SUR_MONO
SUR_SW
BBE_SW
GND
CS0
CS1
CS2
VDD
HP_MU
AMP_MU
BLEV2
BLEV1
SO
/25
QETN1EM-476Z
10
OPEN
OPEN
OPEN
OPEN
0
OPEN
10
0
OPEN
OPEN
10
4.7
OPEN
4.7
0
10
OPEN
220
OPEN
0.1
1k
47
1k
OPEN
0
1K
22
100
0.1
220
OPEN
OPEN
OPEN
220
6.8k
220
220
6.8k
220
6.8k
10
6.8k
10
10
1k
0
0
220
6.8k
220
0
10
0
220
6.8k
220
6.8k
220
47
6.8k
220
0
6.8k
0
6.8k
0
1k
TV_L1
GND
TV_R1
GND
R_SWSUB
GND
TV_L2
TV_R2
L4
GRVOUT
Y2
R2
C2
S2_2
R4
V3
V2
L2
AV_9V
C_SWSUB
GND
S1DC
GND
L3
TV_L2
TV_R2
VY_SWSUB
Y_BSDGND
L_BSA
L_SWSUB
L_BSD
S2
Y4
HP_MU
R_BSA
R_BSD
C4
S4
TV_V2
L_SWMAIN
MON_R
GND
MON_L
AMP_MU
MON_V
R3
BBE_LO
R_SWMAIN
BLEV2
BBE_LO
R_BS
S2_1
SUR_SW
SDA0
BBE_SW
SUR_SW
BBE_SW
SUR_EFCT
MON_Y
MON_C
SUR_MONO
SCL0
VY_SWMAIN
AMP_MU
TV_V2
HP_MU
GND
C_SWMAIN
BLEV1
L1
SUR_MONO
S1
R1
V1
C1
Y1
V4
GND
GND
GRVOUT
TV_L1
TV_R1
GND
SUR_EFCT
GND
VY_SWAP
L_BS
V_BS
C_BSD
Y_BSD
SCL0
SDA0
GND
V_RT
BLEV1
BS_5V
BLEV2
GND
SCL0
VY_SWMAIN
V_BS
L_BS
Y_BSD
R_BS
C_BSD
V_RT
V4
L4
SDA0
C_SWMAIN
Y4
R4
MON_L
R_SWMAIN
MON_R
L_SWMAIN
MON_Y
MON_C
C4
S4
VY_SWAP
MON_V
-M2
FRONT RELAY PWB
SHEET 23
SHEET 1
SHEET 1
SHEET 1
SHEET 11
SHEET 7
SHEET 10
SHEET 6
SHEET 11
SHEET 2
SHEET 1
SHEET 1
SHEET 7
SHEET 1
SHEET 7
SHEET 11
SHEET 7
SHEET 12
NOT USE
NOT USE
SHEET 10
SHEET 3
NOT USE