NV-U74
NV-U74
30
30
5-14. SCHEMATIC DIAGRAM - MAIN Board (9/10) -
• See page 19 for Waveforms.
• See page 33 for IC Block Diagrams.
• See page 37 for IC Pin Function Description.
MA+B
AC97_BITCLK
AC97_DOUT
AC97_IRQ
SYS3.2V
SYS5V
XAC97_RESET
AC97_SYNC
AC97_DIN
BATT_CHK
GND
AC97_DOUT
AC97_BITCLK
AC97_DIN
AC97_SYNC
AC97_DOUT
AC97_SYNC
AC97_BITCLK
AC97_DI
XAC97_RESET
XAC97_RESET
47
R3502
24.576MHz
X3501
0.1
C3503
2.2
C3504
5p
C3502
4p
C3501
1k
R3503
0
R3510
47
R3501
0
R3506
0.001
C3507
1
C3506
10
C3510
N
10k
R3521
0.1
C3508
10k
R3524
FB3502
FB3503
10k
R3523
100k
R3512
0.1
C3509
FB3501
1500
R3527
10k
R3533
10
C3513
10
C3541
10
C3544
1
C3556
FB3504
0.1
C3546
1500
R3528
0.022
C3545
FB3506
0.01
C3547
0.1
C3550
75k
R3531
NJM2125F(TE2)
IC3503
0
R3535
LINE AMP
JL3511
JL3510
2P
CN3502
SP+
SP-
FB3508
0.001
C3553
0.001
C3552
FB3507
IC3504
POWER AMP
(Chip Size Package)
CSP
∗
SP1_XMUTE
TP3507
33k
R3508
33k
R3544
0.
1
C3519
0.
1
C3558
2.2
C3522
2.2
C3524
0.
1
C3517
0.
1
C3518
C3511
0.
0
R3538
0
R3539
R3540
0
0
R3541
C3561
0.001
0.001
0.001
0.001
C3562
C3563
C3564
1
YU
XL
XR
YD
XR
XL
YU
YD
XR
XL
YU
YD
10V
10
C3529
0.1
C3536
0.047
C3535
0.1
C3523
100k
R3519
10V
10
C3530
0.1
C3528
10V
10
C3531
0.1
C3538
100k
R3530
RTM002P02
Q3502
0.
C3534
RT1N441U-TP-1
Q3501
Q3501,3502
BATTERY CHECK
1
0.
C3537
1
0.1
C3551
0.1
C3549
75k
R3532
10
C3548
0.
0.01
C3533
0
R3526
47k
R4008
1
C4006
JL3502
VD3503
VD3502
0
0
3.2
1.1
0.7
0
1.5
0.4
3.2
0.2
3.2
3.2
1.6
1.6
1.6
3.1
0
1.6
1.6
3.2
0
0
3.
1
3.
1
1.
6
1.
6
1.
6
1.
6
1.
6
1.
6
1.
6
3.
2
0
2.
8
3.
1
4.9
0
0
3.4
0
3.4
3.2
0
3.4
A1
A2
A3
B1
B2
B3 C1 C2
C3
1
2
3
4
5
1
2
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
IC3503
MAIN BOARD
(9/10)
SP3501
A
10
1
2
J
H
B
13
11
C
7
8
I
14
F
9
6
K
4
15
16
3
G
D
5
E
12
S
Note:
IC3501 cannot exchange with single. When this part is dam-
aged, exchange the entire mounted board.
Содержание NV-U74
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