Panasonic WV-NW470S / WV-NW474SE Service Manual ▷ View online
4-6
SCHEMATIC DIAGRAM OF POWER BOARD FOR WV-NW470S
TO
MAIN
BOARD
(1/3)
CN401
MAIN
BOARD
(1/3)
CN401
TO
POWER
CABLE
(E11)
POWER
CABLE
(E11)
TO
SWITCH
BOARD
CN2
SWITCH
BOARD
CN2
~
+
~
-
L21
D4
C22
270/16
DGND
C41
220/35
D21
R24
12k
T1
2
3
4
5
1
6
7
8
9
10
11
Q1
G
S
D
R14
1k
R40
680
1/4W
D24
R41
330k
1/4W
R31
22
D36
Q5
1
2
3
4
R15
220
R47
2k
C11
4700p
C13
4700p
R10
220k
R37
22k
C10
0.1
C43
0.1
R48
510
L23
C42
1
R3
6.8k
D38
R32
27k
CN1
1
3
D3
C1
0.056
IC21
1
Ref_pin
2
A
3
K
R5
22
R26
3.3k
D34
R9
220k
C3
1500p
Q33
R28
3.3k
R11
22k
F1
2A
250V
E2
1
LLDET/LPT1
2
LP/LPFQ
3
3.3V
4
GND
5
GND
6
10.5V
7
5V
8
GND
9
NW5D
10
NWGND
11
NWGND
12
NW3.3D
13
NW3.3D
R25
OPEN
C7
100p
R4
47
C33
100p
C6
15/400
R6
27k
1
2
3
4
R21
47
C14
1500p
D35
Q2
C23
100/6.3
Q31
G
S
D
R39
220
DGND
R36
220k
C37
0.01
R34
220k
C2
1500p
C34
0.1
R44
OPEN
D37
R42
220
R43
220
R27
220
C35
4700p
R46
470
D6
D7
R49
470
VS1
D1
1
2
4
3
D32
R22
2.2k
C31
15/400
R13
330k
C5
1
R8
220k
R2
82k
C9
0.01
D31
R45
4.7k
D39
D40
L1
1
4
3
2
C8
100p
1/4W
R16
680
1/4W
1/4W
R12
22k
C12
680p
T31
2
3
4
5
1
6
7
8
9
10
11
R29
2.2k
C26
120/16
D2
D8
R1
82k
1/4W
1/4W
D22
Q32
Q3
1
4
2
3
C39
0.1
DGND
C32
100p
R23
47
L2
1
4
3
2
D25
D5
C24
1
C27
180/10
R30
22k
R35
220k
1/4W
R38
22k
C36
680p
D23
C21
560/10
C4
0.033
D33
L22
33
10
33
1
2
C40
1500p
C25
330/6.3
AC LIVE
(220V-240V AC)
AC NEUTRAL
E1
24V AC LIVE
24V AC NEUTRAL
Important safety notice
Components identified by " " mark have special characteristics for safety.
When replacing any of these components, use only manufacture's specified parts.
Components identified by " " mark have special characteristics for safety.
When replacing any of these components, use only manufacture's specified parts.
Q4
POWER BOARD
1
A
B
C
D
2
3
4
5
6
<INDEX>
POWER BOARD
IC21
B5,C5
Q1
D2
Q2
B3,C3
Q3
C4
Q4
C4
Q5
A4
Q31
A2,B2
Q32
A3
Q33
A5,B5
D1
D2
D2
B2
D3
B2
D4
C3
D5
D3
D6
C3
D7
C3
D8
B3
D21
D4
D22
D4
D23
D4
D24
D5
D25
D5
D31
A2
D32
A2,A3
D33
A3
D34
A3
D35
B3
D36
A3
D37
A3
D38
B4
D39
A4
D40
A5
4-7
SCHEMATIC DIAGRAM OF POWER BOARD FOR WV-NW474SE
TO
POWER
CABLE
(E11)
POWER
CABLE
(E11)
TO
SWITCH
BOARD
CN2
SWITCH
BOARD
CN2
TO
MAIN
BOARD
(1/3)
CN401
MAIN
BOARD
(1/3)
CN401
TO
POWER
CABLE
(E11)
POWER
CABLE
(E11)
AGND
R5
47k
VS1
C19
OPEN
R22
2.2k
D6
R23
22k
D9
R1
1.1k
C1
0.33
D13
Q4
1
2
3
4
R3
680
C6
0.1
VS2
R19
3.3k
D10
T1
2
3
4
7
5
6
8
9
10
D1
DGND
D12
CF1
R15
2.2k
Q1
G
S
D
D7
L2
C9
100p
C15
0.1
C4
470p
D11
R12
220
R2
1.1k
1/4W
1/4W
D3
E1
1
24V AC LIVE
2
24V AC NEUTRAL
F2
3.15A
250V
D14
D2
C3
470/50
C16
330/6.3
C12
560/10
C13
270/16
E2
1
LLDET/LPT1
2
LP/LPFQ
3
3.3V
4
GND
5
GND
6
10.5V
7
5V
8
GND
9
NW5D
10
NWGND
11
NWGND
12
NW3.3D
13
NW3.3D
C10
4700p
C5
470p
F1
3.15A
250V
AGND
C2
1
R7
12k
C14
100/6.3
C8
4700p
C18
180/10
C11
0.01
C17
120/16
VS4
L1
R21
3.3k
R6
100
1/4W
R18
OPEN
D4
Q2
L3
10
33
33
R11
220
R4
47
R8
12k
C7
0.22
IC1
1
Ref_pin
2
A
3
K
R10
13k
Q3
1
4
2
3
R13
150
1/4W
R16
47
R14
47
D5
D8
R9
12k
R17
6.8k
R20
100
CN2
CN1
1
24V AC LIVE
2
24V AC NEUTRAL
24V AC LIVE
24V AC NEUTRAL
1
2
3
GND
1
4
3
2
VS3
Important safety notice
Components identified by " " mark have special characteristics for safety.
When replacing any of these components, use only manufacture's specified parts.
Components identified by " " mark have special characteristics for safety.
When replacing any of these components, use only manufacture's specified parts.
POWER BOARD
1
A
B
C
2
3
4
5
<INDEX>
POWER BOARD
IC1
A4
Q1
B2
Q2
A2
Q3
B3
Q4
A3
D1
C2
D2
C2
D3
B2,C2
D4
B2
D5
A2
D6
A2
D7
A2
D8
A3
D9
A3
D10
C3
D11
B3,C3
D12
B3
D13
C5
D14
C5
5-1
CONDUCTOR VIEW OF SENSOR BOARD
9
8
16
1
1
4
CN300
IC300
14
1
7
8
VNW47PRB1A
PbF
CCD
TD300
TD301
TD302
TD303
IC302
20
1
10
11
IC304
1
12
13
24
IC305
1
4
8
5
1
50
CN4
VNW47PRB1A
CCD
PbF
R347
R345
Q305
R339
L308
L300
R364
R363
R349
Q306
D302
C333
R340
D301
C321
C1301
C325
D304
C326
C301
C319
L307
IC20
C1302
C314
C1303
IC1300
R1300
C318
D305
C330
C329
R1001
L301
L302
L303
R1004
R1003
R1002
C345
C344
C1300
R322
R323
R354
R353
C317
C309
C308
R302
L304
C316
R305
C307
C320
C351
R356
R357
R316
R317
L310
L31
1
C310
C86
R319
R341
R335
R336
R388
C322
R318
R321
R320
C361
R361
C348
IC306
L309
R326
C358
R352
C311
C306
C305
C304
C312
C313
C350
R355
C334
R325
R333
C357
D300
C346
R334
R301
R300
C300
C302
C347
L305
C336
L306
Q303
D308
C359
C337
Q302
C343
C349
C342
R154
R350
R324
R337
C360
C339
Q307
C332
R303
R332
C335
C328
R362
C327
Q300
C323
<INDEX>
SENSOR BOARD
(COMPONENT SIDE)
(COMPONENT SIDE)
IC20
A1,A2,
B1,B2
B1,B2
IC300
A1,A2
Q305
B1
Q306
B1
D301
B1
D304
B1
D305
B1
<INDEX>
SENSOR BOARD
(PATTERN SIDE)
(PATTERN SIDE)
IC302
B1
IC304
A1,A2
IC305
A1
Q300
A1
Q302
B2
Q303
B2
D300
A1
D308
B2
B
(COMPONENT SIDE)
SENSOR BOARD
A
1
2
B
(PATTERN SIDE)
SENSOR BOARD
A
1
2
5-4
CONDUCTOR VIEW OF SWITCH BOARD
C1
C3
TD1
TD2
TD3
TD4
TD5
TD6
TD7
TD8
TD9
TD10
TD11
TD12
TD13
TD14
TD15
IC1
TD16
TD17
TD18
TD19
TD20
TD21
TD22
TD23
TD24
TD25
TD26
TD27
TD28
TD29
R19
1
3
CN2
29
30
2
1
CN
3
SW PbF
VNW47PRC1A
D4
D5
SW1
SW2
SW3
SW4
SW5
JK1
SW6
SW7
SW8
SW9
INT/LL
BWSW
BW_LVL
R
U
D
VNW47PRC1A
EFT
L
IGHT
P
OWN
B
A
LINK
RCV
PbF
LED
OFF
LED
ON
SOFT/SHARP
UP SIDE DOWN
SW
1
4
CN1
R8
D9
D8
R22
R18
R107
R101
R9
R108
R25
R20
D104
D102
R103
R104
R26
R16
R7
R3
Q4
Q2
R27
R21
R17
R29
R109
D105
R1
10
R13
R14
R12
R23
R11
R4
TD2
R1
R8
Q5
R10
D1
D3
D2
Q1
Q3
R106
R105
D103
R24
R15
D7
D6
D15
R5
R28
R102
D101
R2
<INDEX>
IC1
C3
Q1
B3
Q2
B3
Q3
B3
Q4
B3
Q5
A3
D1
A3,B3
D2
B3
D3
B3
D4
C1
D5
C1
D6
B3
D7
B3
D8
C3
D9
C3
D15
C3
D101
B3
D102
B3
D103
B3
D104
B3
D105
A3,B3
(COMPONENT SIDE)
SWITCH BOARD
(PATTERN SIDE)
SWITCH BOARD
1
A
B
C
D
2
3
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