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NV-U74
NV-U74
20
20
5-4. PRINTED WIRING BOARD - MAIN Board (Component Side) -
•
: Uses unleaded solder.
30
11
5
16
A
A
A
6
10
B
1
5
30
11
5
16
29
1
2
3
1
5
8
1
5
4
G
S
D
G
S
D
D
G
S
1
6
3
4
A
A
K
1
5
A
K
C3058
R3031
C3059
R3032
R3033
R3034
R3035
C1507
C3060
R3038
FB1008
C3064
FB1009
C3066
C4006
Q4002
C3067
C3068
C3069
R3043
FB1010
R3044
FB1011
R3045
FB1012
FB1013
R3051
R3052
R3054
R1114
R1115
R3056
X4501
D4004
R3061
R3062
R4004
R1124
R3065
R1125
R3066
R1126
R1128
R4008
FL3001
R4029
R4010
R3075
R4015
R3076
R4016
R3083
R3084
CN2501
R4025
R3087
R3088
R3089
C2501
C2503
C2504
Q2501
C2506
C2507
C2508
R3098
C2509
TP1027
C2510
R2501
R2502
R2503
R2505
R2506
R2507
R2508
R2509
FL1502
FL1503
TP1050
ET002
ET003
R2517
R2518
R2519
TP1059
TP1062
TP1063
R2526
R2527
R2528
R2529
R2530
R2531
R2532
C3501
C3502
C3503
C3504
Q3501
Q3502
C3506
C3507
C3508
FB3005
C3509
R3100
C3510
C3511
C3513
Q3128
R3106
C3517
C3518
C3519
C3522
C3523
C3524
R3115
R3117
R3118
C3528
C3529
R3501
FB3025
FB3026
R3502
FB3027
R3503
FB3028
L3001
C1011
L3002
R3506
C1012
L3003
C1013
R3508
R3120
C1014
C3530
FL2501
L3005
R3121
C1015
C3531
C1016
R3123
C3533
C3534
C3535
C3536
C3537
C3538
R3510
R3512
C1024
R3131
C1025
R3519
C1026
C1027
C1028
C1029
R1003
TP3001
TP3002
C1030
C1031
C1032
R3526
C1033
C1034
C1035
C1036
C1037
C1038
C3556
R1012
R3530
C3558
R1015
R1016
R3533
R1017
C1040
FB1501
C1041
R3536
C1042
C1043
R3538
C3561
R3539
C1045
C4501
C1046
C3562
C4502
C1047
C4503
C3563
C3564
C4504
R1020
C1049
C4505
C4506
R1022
R3540
R1024
R3541
R1026
R1027
R3544
R1028
C1051
R1029
C1052
R1030
R1031
R1033
C2004
C2005
C2006
D4501
R4504
R4505
R4507
IC4501
IC4503
R4512
R4514
R1059
X2501
R1061
R1063
R1064
R1066
R1068
R4525
R4526
FL1002
R4527
FL1005
FL1006
FL1007
CN0105
R1071
R1072
R1073
R1074
R1075
R1078
TP9801
TP9802
CN3001
R1093
R1094
R1097
C3003
C3004
C3005
C3006
Q3003
C3007
C3008
C3009
C3010
C3011
C3013
C3014
C3015
Q3011
C3016
Q3012
C3018
C3019
Q3016
Q3017
Q3018
C3020
C3022
C3023
C3025
Q3021
X3501
C3026
D3002
D3003
C3027
Q3023
Q3024
C3029
D3005
TP2506
Q3026
D3006
C3030
R3009
IC3001
C3032
C3033
D3010
R3010
D3014
C3039
R3012
D3016
R3013
R3014
R3016
R3018
C3040
R3019
FB3501
FB3502
FB3503
D3020
D3021
C3046
C3047
C3048
RB4501
RB4502
R3023
S3002
R3029
CN4003
(USB)
D4007
A
A
K
E
E
E
E
A
A
A
A
K
K
E
G
S
D
G
S
G
S
D
D
G
S
D
G
S
D
MAIN BOARD
(COMPONENT SIDE)
BAT3001
LITHIUM ION
BATTERY
RESET
1-874-301-
11
(11)
OFF
ON
S3004
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
K
Ref. No. Location
• Semiconductor
Location
D3002 I-8
D3003 I-7
D3005 G-7
D3006 G-6
D3010 H-3
D3014 G-7
D3016 K-8
D3020 I-7
D3021 I-7
D4004 D-11
D4007 B-13
D4501 D-11
IC2501 G-11
IC3001 I-8
IC3002 H-5
IC3005 H-3
IC3501 D-9
IC4501 C-10
IC4502 D-11
IC4503 D-11
IC4505 C-12
Q2501 F-10
Q3003 J-7
Q3011 I-3
Q3012 H-3
Q3016 H-7
Q3017 G-7
Q3018 I-6
Q3021 G-6
Q3023 G-7
Q3024 G-8
Q3026 I-7
Q3128 J-6
Q3501 E-9
Q3502 E-9
Q4002 B-10
Note 1:
The MAIN board is attached with multiple shield plates. For electrical check or replacement of
mounted parts, the shield plates must be removed and the frame of terminal board must be
cut off. Even if the frame of terminal board is cut off, the performance is not impaired. (Refer to
“PRECAUTION WHEN CHECKING THE MAIN BOARD” in SERVICING NOTES (page 4))
Note 2:
IC3002, IC3501 and IC4505 cannot exchange with single. When
these parts are damaged, exchange the entire mounted board.
Summary of Contents for NV-U74
Page 57: ...MEMO NV U74 57 ...