Panasonic WV-CW370 Series User manual

Supplement-1
ORDER NO. AVS0509647S0
S02
Colour / Color CCTV Cameras
WV-CW370 Series
SD
II
WV-CW374
Matsushita Electric Industrial Co., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.
©2005
Please file and use this supplement-1 service manual together with the following service manuals.
• Original service manual WV-CW370 / WV-CW374E : Order No. AVS0406573C8.
• Original service manual WV-CW374 : Order No. AVS0407574C1.
LIST OF MODIFICATION
■Added Dehumidifier Ass'y
Modification : Dehumidifier Ass'y has been added.
Front Escutcheon and Power 2 Board themselves have been changed.
Applicable from : July, 2005 (Serial No. xxxxxxxx and higher.)
■Mechanical Parts
Modification : Some mechanical parts have been changed to improve productivity.
Applicable from : July, 2005 (Serial No. xxxxxxxx and higher.)
The Product with PbF

CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK). NO USER
SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.
This symbol warns the user that uninsulated voltage within
the unit may have sufficient magnitude to cause electric
shock.Therefore, it is dangerous to make any kind of contact
with any inside part of this unit.
This symbol alerts the user that important literature concerning
the operation and maintenance of this has been included.
Therefore, it should be read carefully in order to avoid
any problems.
There are special components used in this equipment which are important for safety. These parts are indicated
by the ”Y”mark on the schematic diagram and the replacement parts list. It is essential that these critical
parts should be replaced with manufacturer's specified parts to prevent X-radiation, shock, fire, or other hazards.
Do not modify the original design without permission of manufacture.
IMPORTANT SAFETY NOTICE
About Lead Free Solder (PbF)
Distribution of PbF PCB:
PCBs (manufactured) using lead free solder (PbF) will have a stamp on the PCB.
Caution:
8Lead free solder has a higher melting point than standard solder. Typically the melting points is 35 °C –40 °C
(95 °F –104 °F) higher. Please use a soldering iron with temperature control and adjust it to 360 °C –370 °C
(680 °F –698 °F). In case of using high temperature soldering iron, please be careful not to heat too long.
8Lead free solder will tend to splash when heated too high (600 °C / 1112 °F).
8Lead free solder (Sn - 3.0Ag –0.5Cu) or equivalents are recommended on repairing our lead free soldered PCB.
YWARNING
This service information is designed for experienced repair technicians only and is not designed for use by the
general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to
service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any
attempt to service or repair the product or products dealt with in this service information by anyone else could
result in serious injury or death.

CONTENTS
MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS.............................................................................. 1-1
LIST OF CONSUMPTION PARTS.......................................................................................................................... 1-3
ADJUSTMENT PROCEDURE ................................................................................................................................ 2-1
WIRING DIAGRAM
FOR WV-CW370 ................................................................................................................................................. 3-1
FOR WV-CW374E (WV-CW374)................................................................................................................ 3-2 (3-1)
SCHEMATIC DIAGRAM
SENSOR BOARD............................................................................................................................................... 4-1
MAIN BOARD
PARTITION DIAGRAM............................................................................................................................... 4-2-1
[1].............................................................................................................................................................. 4-2-2
[2].............................................................................................................................................................. 4-2-3
[3].............................................................................................................................................................. 4-2-4
[4].............................................................................................................................................................. 4-2-5
SW BOARD........................................................................................................................................................ 4-3
POWER 1 BOARD FOR WV-CW370................................................................................................................. 4-4
POWER 1 BOARD FOR WV-CW374E (WV-CW374) ............................................................................... 4-5 (4-4)
POWER 2 BOARD FOR WV-CW370..................................................................................................................4-6
POWER 2 BOARD FOR WV-CW374E (WV-CW374).................................................................................4-7 (4-5)
CONDUCTOR VIEW
SENSOR BOARD............................................................................................................................................... 5-1
MAIN BOARD..................................................................................................................................................... 5-2
SW BOARD........................................................................................................................................................ 5-3
POWER 1 BOARD FOR WV-CW370................................................................................................................. 5-4
POWER 1 BOARD FOR WV-CW374E (WE-CW374) ............................................................................... 5-5 (5-4)
POWER 2 BOARD FOR WV-CW370..................................................................................................................5-6
POWER 2 BOARD FOR WV-CW374E (WE-CW374).................................................................................5-7 (5-5)
EXPLODED VIEW
(1/5) .................................................................................................................................................................... 6-1
(2/5) ................................................................................................................................................................... 6-2
(3/5) ................................................................................................................................................................... 6-3
(4/5) FOR WV-CW370........................................................................................................................................ 6-4
(4/5) FOR WV-CW374E (WV-CW374) .......................................................................................................6-5 (6-4)
(5/5) ........................................................................................................................................................... 6-6 (6-5)
REPLACEMENT PARTS LIST ............................................................................................................................... 7-1
•This supplement-1 service manual only describes marked information on the contents.
•As for the rest of information, please refer to the original service manual WV-CW370 / WV-CW374E or WV-CW374 according
to the contents.

marked parts are
different from the Original
Service Manual.
OPTICAL
ASS'Y
(IC20)
FAN
(MO1)
CN1
CN6
2
12
CN1
CN11
13
1
CN300
41
CN3
TD6
(SCVCXO)
(Pattern Side)
14
CN4
18
E1
18
CN4
2133
32
CN1
150
CN4
501
(VIDEO OUTPUT CABLE
WITH BNC CONNECTOR)
E12
VIDEO OUTPUT CABLE
E11
POWER CABLE Live (Brown)
Neutral (Blue)
GND (Green /Yellow)
E13
E15
E14
LENS ASS'Y (M45)
IR FILTER MECHANICAL
ASS'Y (M35)
1
CN5
20
19
2
1
CN1 19
20
1
2
CN2 1
2
33
32
DEHUMIDIFIER
ASS'Y (M91)
CN7
13
SENSOR BOARD
MAIN BOARD
POWER 1 BOARDPOWER 2 BOARD
SW BOARD
3-1
WIRING DIAGRAM FOR WV-CW370

marked parts are
different from the Original
Service Manual.
OPTICAL
ASS'Y
(IC20)
FAN
(MO1)
CN1
CN6
2
12
CN1 E2
CN11
51
1
CN300
41
CN3
TD6
(SCVCXO)
(Pattern Side)
14
CN4
18
E1
18
CN4
2133
32
CN1
150
CN4
501
(VIDEO OUTPUT CABLE
WITH BNC CONNECTOR)
E12
VIDEO OUTPUT CABLE
E11
POWER CABLE
Live (Brown)
Neutral (Blue)
GND (Green /Yellow)
FOR CAMERA
FOR HEATER
Neutral (Gray)
Live (Black)
E13
E15
E14
LENS ASS'Y (M45)
IR FILTER MECHANICAL
ASS'Y (M35)
1
CN5
20
19
2
1
CN1 19
20
1
2
CN2 1
2
33
32
DEHUMIDIFIER
ASS'Y (M91)
CN7
13
SENSOR BOARD
MAIN BOARD
POWER 1 BOARDPOWER 2 BOARD
SW BOARD
3-2 (3-1)
WIRING DIAGRAM FOR WV-CW374E (WV-CW374)

4-2-2
SCHEMATIC DIAGRAM OF MAIN BOARD [1]
marked part is
different from the Original
Service Manual.
TO
IR FILTER
MECHANICAL
ASS'Y (M35)
<LOCATION MARK>
BEND
RESET
BUSYF
RS2MI
MI2RS
CLK1
AFIRQ
MI2RS
BW2 OUT4OUT2
OUT1 BWEN
BW1
OUT3
BWEN
2W/4W
485DET
UP
DOWN
RIGHT
DACLD
BEND
NT/PAL
ALE NRE NWE
AD[1]
AD[2]
AD[3]
AD[4]
AD[5]
AD[6]
AD[7]
FVD
BWEN
BW2
BW1
MI2RS RS2MI SDOUT SDIN SCLK
LLDET2 LLDET1
AD[0]
A[11]
A[12]
A[13]
A[14]
LP
ROMCS
S
FHG
TGV1
TSUB
TGV2
TCH1
TGV3
TCH2
TGV4
*R
*H1
*H2
FLKA
BW_LVL
BWSW
ALARM/AP
UPSIDEDOWN
INT/LL
DSP/CS
FLTP1
RS2MI
AFIRQ
DSP/CS
DSPNRE
DSPNWE
NRE
DSP/CS
NWE
RS2MI
RESET
CLK1 BUSYF FLTP1FLTP1
CLK1
OUT2
OUT3
OUT4
FCK2
OUT1
TD11
TD4
R24 10
TD218
G
C39
0.1
CN2
1GND 2HOLD 3VCC 4CNVSS 5NMI 6CLK 7TXD 8RXD 9BUSY 10RESET
TD59
R5
11k
R184
47k
TD46
C13
OPEN
GND
TD52 TD215 TD50
CN1
1GND 2*H2 3GND 4*H1 5GND 6*R 7GND 8TGV4 9TCH2 10TGV3 11TCH1 12TGV2 13TSUB 14TGV1 15FHG 16GND 17GND
R25 10
TD1
GND
MA3.3V
R4
OPEN
TD206
CN3
1A+
2A-
3B+
4B-
Attachment1
Attachment2
GND
IC3
1VCC
2ENA1
3OUT1
4VS1
5OUT2
6IN1
7GND_1 8
VCONT
9
IN2
10
OUT4
11
VS2
12
OUT3
13
ENA2
14
GND_2
C12
OPEN
R157
TD7
TD216
MA3.3V
R3
2.7
1/4W
IC2 1
OUT
2VDD
3
VSS
R186
47k
GND
TD222
R160
0
TD44
MA3.3V
TD56
R6
10k
R2
IC4
1P94/DA1/TB4IN
2P93/DA0/TB3IN
3P92/TB2IN/SOUT3
4P91/TB1IN/SIN3
5P90/TB0IN/CLK3
6BYTE
7CNVss
8P87/XCIN
9P86/XCOUT
10 RESET
11 XOUT
12 VSS_1
13 XIN
14 VCC1
15 P85/NMI
16 P84/INT2
17 P83/INT1
18 P82/INT0
19 P81/TA4IN/U
20 P80/TA4OUT/U
21 P77/TA3IN
22 P76/TA3OUT
23 P75/TA2IN/W
24 P74/TA2OUT/W
25 P73/CTS2/RTS2/TA1IN/V
26 P72/CLK2/TA1OUT/V 27 P71/RxD2/SCL2/TA0IN/TB5IN 28 P70/TXD2/SDA2/TA0OUT 29 P67/TXD1/SDA1 30 P66/RxD1/SCL1 31 P65/CLK1 32 P64/CTS1/RTS1/CTS0/CLKS1 33 P63/TXD0/SDA0 34 P62/RxD0/SCL0 35 P61/CLK0 36 P60/CTS0/RTS0 37 P57/RDY/CLKOUT 38 P56/ALE 39 P55/HOLD 40 P54/HLDA 41 P53/BCLK 42 P52/RD 43 P51/WRH/BHE 44 P50/WRL/WR 45 P47/CS3 46 P46/CS2 47 P45/CS1 48 P44/CS0 49 P43/A19 50 P42/A18
51
P41/A17
52
P40/A16
53
P37/A15
54
P36/A14
55
P35/A13
56
P34/A12
57
P33/A11
58
P32/A10
59
P31/A9
60
VCC2
61
P30/A8[/-/D7]
62
VSS_2
63
P27/AN27/A7[/D7/D6]
64
P26/AN26/A6[/D6/D5]
65
P25/AN25/A5[/D5/D4]
66
P24/AN24/A4[/D4/D3]
67
P23/AN23/A3[/D3/D2]
68
P22/AN22/A2[/D2/D1]
69
P21/AN21/A1[/D1/D0]
70
P20/AN20/A0[/D0/-]
71
P17/D15/INT5
72
P16/D14/INT4
73
P15/D13/INT3
74
P14/D12
75
P13/D11
76
P12/D10
77
P11/D9
78
P10/D8
79
P07/AN07/D7
80
P06/AN06/D6
81
P05/AN05/D5
82
P04/AN04/D4
83
P03/AN03/D3
84
P02/AN02/D2
85
P01/AN01/D1
86
P00/AN00/D0
87
P107/AN7/KI3
88
P106/AN6/KI2
89
P105/AN5/KI1
90
P104/AN4/KI0
91
P103/AN3
92
P102/AN2
93
P101/AN1
94
AVSS
95
P100/AN0
96
VREF
97
AVCC
98
P97/ADTRG/SIN4
99
P96/ANEX1/SOUT4
100
P95/ANEX0/CLK4
C16
0.1
TD217
L4
2.2
TD75
TD45
R28
47k
3.3V
C11
10/10
TD62
TD220
MA3.3V
GND
TD5
GND
5V
TD207
TD53
R23 10
R181
0
TD221
TD204
TD211
TD219
MA3.3V
TD48
R19 47k
GND
R185
47k
R22 47k
3.3V
TD49
TD8
R188 0
R134 47k
R27
47k
TD47
TD74
TD205
C22
0.1
C113
IC18
11A
21B
32Y 6
2B
7
1Y
8
VCC
TD51
C15
1
C14
330/6.3
X1
(16.000MHz)
1
2
3
FCK2
OPEN
E
F
G
H
MAIN BOARD

4-6
SCHEMATIC DIAGRAM OF POWER 2 BOARD FOR WV-CW370
marked parts are
different from the Original
Service Manual.
TO
FAN
(MO1)
TO
DEHUMIDI-
FIER ASS'Y
(M91)
TO
MAIN
BOARD
CN4
TO
POWER 1
BOARD
E1 TO
SW
BOARD
CN1
TO
VIDEO
OUTPUT
CABLE
(E12)
JK1
MONITOR
OUTPUT
JACK
RIGHT
UP
DOWN
SET
INT
UPSIDE
ALARM
BWSW
BW
LEFT
BW
UP
DOWN
RIGHT
LEFT
SET
UPSIDE
BWSW
INT
ALARM
10.5V
TP1
R35
C3
1
L1
33
R36
R44
10k
R30
TP67
3.30V
C4
10/10
TP31
TP5
IC1
1Cont
2GND_1
3Np 4
Vout
6
Vin 5
GND_2
TP16
TP4
VS1
C12
100/35
R31
TP8
R3
OPEN
TP11
TP19
R47
10k
TP28
5V
TP25
R48
OPEN
TP3
DGND
DGND
TP18
24.0V
5V
TP32
CN2
1 GND
2 EXT BW/LED OUT2
3 VIDEO
45V
5 FANSW
6 GND
7 GND
8 BW LVL
9 2W/4W
10 1.8V
11 3.3TV
12 3.3V
13 10.5V
14 AGC5V
15 DRIVE
16 UP
17 DOWN
18 RIGHT
19 LEFT
20 SET
21 TXDET/FMFR
22 SD/AUDIO-V
23 DUMP
24 RDIN
25 ALARM/AP
26 ACTS
27 LP/LPFO
28 LLDET/LPFI
29 GL/FLK/LED OFF
30 REF
31 UPSIDEDOWN
32 BWSW
33 INT/LL
Attachment1
Attachment2
Attachment3
Attachment4
R8 100k
R10 100k
IC4
1VCC
2
GND
3
OUT
R28
F1
C2
10/10
R29
330 1W
R24
120
1W
C13
0.47
5V
R49
15k
Q14
D
TP13
R46
2.2k
(VS4)
TH4
C1
10/10
VS2
R26
R37
3.3k
D1
C14
22/35
R27
Q13
OPEN
GD
S
GS
R12
51k
CN1
1 FAN-
2 FAN+
Attachment1
Attachment2
Q9
TP20
TP12
IC5
1
VSS
2VIN 3
VOUT
R11
OPEN
3.31V
IC3
1INPUT
2
GND
3
OUTPUT
DGND
D9
R45
10k
DGND
DGND
R42
10k
IC6
1
NC
2
IN_A
3
GND
4OUT_Y 5VCC
C24
68/10
TP10
TP9
CN4
1GND 2LP/LPFO 3LLDET/LPFI 45V 510.5V 624V 7EXT BW/LED 8GND[24V]
Attachment1
Attachment2
R23
330k
R15
270k
TP2
JK1
1
2
4
5
6
10
R41
2.2k
C6
56/35
CN6
1 VIDEO OUT
2 VIDEO GND
R32 R34
24.1V
R25
1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W
TP17
TP33
R2
OPEN
R1
OPEN
R9 0
CN5
1 INT/LL
2UPSIDEDOWN
3 SOFT/SHARP
4 BWSW
5 BW LVL
6 LEFT
7 RIGHT
8UP
9 DOWN
10 SET
11 3.3V
12 10.5V
13 AGC5V
14 GND
15 +5V
16 GND
17 LED ON/OFF
18 GND
19 GND
20 GND
C8
100/10
LP/LPFO
LLDET/LPFI
5V
10.5V
24V
DGND
TP65
C5
1
3.30V
TP14
R33
3.9k
CN7
1 3.0V
2 GND
3 GND
TP27
IC2
1INPUT
2
GND
3
OUTPUT
R43
10k
1.8V
C7
220/16
D3
C15
4.7/16
C16
10/10
C18
4.7/16
C19
4.7/16
C17
4.7/16
R14
620
R13
620
R50
0
Q16
1
23
4
Q12
1
23
4
D10
OPEN
1 2
3
R54
OPEN
R51
8.2k
Q19
OPEN
R52
3.3k
R53
0
TP68
Q21
Q20
C22
0.1
C20
0.1
C21
0.1
Q17 Q15
D2
Q1Q2
D5
D6
D7
D8
C25
0.1
OPEN
OPEN
POWER 2 BOARD
1
A
C
D
B
2345
<INDEX>
IC1 C3,C4
IC2 C3,C4
IC3 C3,C4
IC4 D2
IC5 C3
IC6 A2
Q1 B2
Q2 B1,B2
Q9 C2,D2
Q12 C2
Q14 C2
Q15 C2
Q16 C2,B2
Q17 C1
Q20 A1
Q21 A2
D1 B1,B2
D2 B2
D3 A2
D5 OPEN
D6 D1
D7 D1
D8 OPEN
D9 D2
POWER 2 BOARD

4-7 (4-5)
SCHEMATIC DIAGRAM OF POWER 2 BOARD FOR WV-CW374E (WV-CW374)
marked parts are
different from the Original
Service Manual.
TO
FAN
(MO1)
TO
MAIN
BOARD
CN4
TO
POWER 1
BOARD
E1 TO
SW
BOARD
CN1
TO
VIDEO
OUTPUT
CABLE
(E12)
JK1
MONITOR
OUTPUT
JACK
TO
DEHUMIDI-
FIER ASS'Y
(M91)
RIGHT
UP
DOWN
SET
INT
UPSIDE
ALARM
BWSW
BW
LEFT
BW
UP
DOWN
RIGHT
LEFT
SET
UPSIDE
BWSW
INT
ALARM
10.5V
TP1
R35
C3
1
L1
R36
R44
10k
R30
TP67
3.30V
C4
10/10
TP31
TP5
IC1
1Cont
2GND_1
3Np 4
Vout
6
Vin 5
GND_2
TP16
TP4
VS1
C12
100/35
R31
TP8
R3
OPEN
TP11
TP19
R47
10k
TP28
5V
TP25
R48
OPEN
TP3
DGND
DGND
TP18
24.0V
5V
TP32
CN2
1 GND
2 EXT BW/LED OUT2
3 VIDEO
45V
5 FANSW
6 GND
7 GND
8 BW LVL
9 2W/4W
10 1.8V
11 3.3TV
12 3.3V
13 10.5V
14 AGC5V
15 DRIVE
16 UP
17 DOWN
18 RIGHT
19 LEFT
20 SET
21 TXDET/FMFR
22 SD/AUDIO-V
23 DUMP
24 RDIN
25 ALARM/AP
26 ACTS
27 LP/LPFO
28 LLDET/LPFI
29 GL/FLK/LED OFF
30 REF
31 UPSIDEDOWN
32 BWSW
33 INT/LL
Attachment1
Attachment2
Attachment3
Attachment4
R8 100k
R10 100k
IC4
1VCC
2
GND
3
OUT
R28
F1
C2
10/10
R29
330 1W
R24
120
1W
C13
0.47
5V
R49
15k
Q14
D
TP13
R46
2.2k
(VS4)
TH4
C1
10/10
VS2
R26
R37
3.3k
D1
C14
22/35
R27
Q13
OPEN
GD
S
GS
R12
51k
CN1
1 FAN-
2 FAN+
Attachment1
Attachment2
Q9
TP20
TP12
IC5
1
VSS
2VIN 3
VOUT
R11
0
OPEN
OPEN
OPEN
OPEN
OPEN
3.31V
IC3
1INPUT
2
GND
3
OUTPUT
DGND
D9
R45
10k
DGND
DGND
R42
10k
IC6
1
NC
2
IN_A
3
GND
4OUT_Y 5VCC
C24
68/10
TP10
TP9
CN4
1GND 2LP/LPFO 3LLDET/LPFI 45V 510.5V 624V 7EXT BW/LED 8GND[24V]
Attachment1
Attachment2
R23
330k
R15
270k
TP2
JK1
1
2
4
5
6
10
R41
2.2k
C6
CN6
1 VIDEO OUT
2 VIDEO GND
R32 R34
24.1V
R25
1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W 1k 1W
TP17
TP33
R2
OPEN
R1
OPEN
R9 0
CN5
1 INT/LL
2UPSIDEDOWN
3 SOFT/SHARP
4BWSW
5 BW LVL
6 LEFT
7 RIGHT
8UP
9 DOWN
10 SET
11 3.3V
12 10.5V
13 AGC5V
14 GND
15 +5V
16 GND
17 LED ON/OFF
18 GND
19 GND
20 GND
C8
100/10
LP/LPFO
LLDET/LPFI
5V
10.5V
24V
DGND
TP65
C5
1
3.30V
TP14
R33
3.9k
CN7
1 3.0V
2 GND
3 GND
TP27
IC2
1INPUT
2
GND
3
OUTPUT
R43
10k
1.8V
C7
D3
C15
4.7/16
C16
10/10
C18
4.7/16
C19
4.7/16
C17
4.7/16
R14
620
R13
620
R50
0
Q16
1
23
4
Q12
1
23
4
D10
OPEN
1 2
3
R54
OPEN
R51
8.2k
Q19
OPEN
R52
3.3k
R53
0
TP68
Q21
Q20
C22
0.1
C20
0.1
C21
0.1
Q17 Q15
D2
Q1Q2
D5
D6
D7
D8
C25
0.1
POWER 2 BOARD
1
A
C
D
B
2345
<INDEX>
IC1 C3,C4
IC2 C3,C4
IC3 C3,C4
IC4 D2
IC5 C3
IC6 A2
Q1 B2
Q2 B1,B2
Q9 C2,D2
Q12 C2
Q14 C2
Q15 C2
Q16 C2,B2
Q17 C1
Q20 A1
Q21 A2
D3 A2
D5 D1
D6 D1
D7 D1
D8 D1
D9 D2
POWER 2 BOARD

Serial No.
Label
M57
M92
M10
M61 M12
M11
M59
M11
M58
M14
M9
M8
M7
M5
M4
M3
M5
M1 M93
M6
M2
M13
M15
M60
M14
11
11
11
11
11
14
8
9
13
Camera Unit
Main Unit
(Refer to the page 6-2.)
marked parts are different
from the Original Service Manual.
Numbers show screws and washers.
i
o
!1
!3
!4
XSB3+8V
XSB3+6V
XYM26+A6V
XYM3+J10V
XYN3+J8V
Screws Binding Head Machine Screw
Binding Head Machine Screw
Binding Head Machine Screw and Washer Ass'y
Binding Head Machine Screw and Washer Ass'y
Binding Head Machine Screw and Washer Ass'y
Description
No.
6-1
EXPLODED VIEW (1/5)

M15
M15
M16
M28
M17
M19
M17
M62
M63
M23
M21
M24
M20
M21 M22
M25
M27
M15
M15
M26
7
12
10 10
7
1
12
1
Main Unit
Front Unit
(Refer to the
page 6-3.)
Power Unit
(Refer to the page 6-4
for WV-CW370.)
(Refer to the page 6-5
for WV-CW374E.)
Rear Unit
(Refer to the page 6-4
for WV-CW370.)
(Refer to the page 6-5
for WV-CW374E.)
Numbers show screws and washers.
q
u
!0
!2
XSB2+5FN
XYM3+A8V
XSB26+8V
XSB2+4V
Screws Binding Head Machine Screw
Binding Head Machine Screw and Washer Ass'y
Binding Head Machine Screw
Binding Head Machine Screw
Description
No.
6-2
EXPLODED VIEW (2/5)

6-3
EXPLODED VIEW (3/5)
M45
E14
M37
M39
IC20 M40 M41
M38
M36
M35
M43
PCB2
M44
M42
PCB1
2
1
2
Front Unit
M91
marked parts are different
from the Original Service Manual.
Numbers show screws and washers.
q
wXSB2+5FN
XYM2+J6FN
Screws Binding Head Machine Screw
Binding Head Machine Screw and Washer Ass'y
Description
No.

6-4
EXPLODED VIEW (4/5) FOR WV-CW370
E11 M54 M56
M53
CN11
M55
M55
E12
D3 M65
PCB5
M49
M47
MO1
M48
M66 PCB4
M65
D12
M50
M51
PCB3
Earth Lug
M52
8
2
4
2
5
6
1
3
2
Rear Unit for WV-CW370
Power Unit forWV-CW370
(Cable of
M91)
marked parts are different
from the Original Service Manual.
Numbers show screws and washers.
q
w
e
r
t
y
i
XSB2+5FN
XYM2+J6FN
XSN26+14FN
XTB2+6GFX
XSB4+6FX
XWC4BFX
XSB3+8V
Screws Binding Head Machine Screw
Binding Head Machine Screw and Washer Ass'y
Pan Head Machine Screw
Binding Head Tapping Screw
Binding Head Machine Screw
External Toothed Lock Washer
Binding Head Machine Screw
Description
No.

6-5 (6-4)
EXPLODED VIEW (4/5) FOR WV-CW374E (WV-CW374)
E11
L102 M54 M56
M53
CN11
M55
M55
E12
L101
D3 M65
M49
M47
MO1
M48
Earth Lug
PCB4
M65 D14
PCB3
8
2
4
2
9
2
1
3
Rear Unit for WV-CW374E
Power Unit forWV-CW374E
(Cable of
M91)
marked parts are different
from the Original Service Manual.
PCB5
Numbers show screws and washers.
q
w
e
r
i
o
XSB2+5FN
XYM2+J6FN
XSN26+14FN
XTB2+6GFX
XSB3+8V
XSB3+6V
Screws Binding Head Machine Screw
Binding Head Machine Screw and Washer Ass'y
Pan Head Machine Screw
Binding Head Tapping Screw
Binding Head Machine Screw
Binding Head Machine Screw
Description
No.

M90
M90
M90
M89
M90
Bar Code Label
M90
M86
M74
M87
M75
M86
M71
M87
M78
M86
M77
M89
M78
M86
M101
M89
M103
M102
M105
M106
M104
M84
M85
M89
M88
M76
M86
M83
M81
M82
M73
M72
M87
M79
(o)
M80
M87 M90
PACKAGING
WV-CW370
WV-CW374E
(WV-CW374)
marked parts are different
from the Original Service Manual.
6-6 (6-5)
EXPLODED VIEW (5/5)

7-1
M18 ——————— Delete
M37 3CG001045CAB Front Escutcheon
M42 YV2FA1253B4 DSP Cushion
M46 ——————— Delete for WV-CW370 / WV-CW374E
M53 3CG001046CAA Rear Escutcheon
M91 VCW370GA1A Dehumidifier Ass'y
M92 3PC001224AAA WEEE Lebel for WV-CW370 / WV-CW374E
M93 3EZ001205AAA Safety Wire
CN2 ——————— Delete
REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION
REPLACEMENT PARTS LIST
Important Notice
1. Components identified by " Y " mark have special characteristics important for safety.
When replacing any of these components, use only manufacturer's specified parts.
2. RTL : Retention Time Limited (No longer available after discontinuing product).
8Only the changed parts are described.
8Refer to the original service manual for the rest.
MISCELLANEOUS
8Refer to the original service manual.
SENSOR BOARD
8Only the changed parts are described.
8Refer to the original service manual for the rest.
MAIN BOARD
8Refer to the original service manual.
SW BOARD
Note:
When the Dehumidifier Ass'y (M91) is installed on the protection product before July,
2005, it is necessary to replace the Front Escutcheon (M37) and the Power 2 Board
Ass'y (PCB5) with new parts at the same time.

7-2
E2 VCW37J06B Ground Wire
PCB5 (RTL) VCW370KC4B Printed Circuit Board Ass’y
IC5 C0CBABE00058 Regulator
D5,8 ——————— Delete
C15 F3F1C475A037 Tantalum 4.7 µF 16V
C16 F3F1A106A037 Tantalum 10 µF 10V
CN7 K1KA03B00215 3-pin Connector
PCB5 (RTL) VCW374KC4B Printed Circuit Board Ass’y
IC5 C0CBABE00058 Regulator
C15 F3F1C475A037 Tantalum 4.7 µF 16V
C16 F3F1A106A037 Tantalum 10 µF 10V
CN7 K1KA03B00215 3-pin Connector
REF. NO. PART NO. DESCRIPTION
M72 3CK001094CAA Mounting Arm Brace
M101 3TU001324AAA Leaflet for Safety Wire
M102 3TU001355AAA Leaflet
M103 3CJ001261AAA Spacer (Desiccant)
M104 3TU001425AAA Leaflet for WEEE
for WV-CW370 / WV-CW374E
M105 3TU001456AAA Leaflet for Instructions
M106 3CZ001121AAA Waterproofing Tape
REF. NO. PART NO. DESCRIPTION
8Refer to the original service manual.
POWER 1 BOARD for WV-CW370
8Only the changed parts are described.
8Refer to the original service manual for the rest.
POWER 1 BOARD for WV-CW374E (WV-CW374)
8Only the changed parts are described.
8Refer to the original service manual for the rest.
POWER 2 BOARD for WV-CW370
8Only the changed parts are described.
8Refer to the original service manual for the rest.
POWER 2 BOARD for WV-CW374E (WV-CW374)
W-045 P
8Only the changed parts are described.
8Refer to the original service manual for the rest.
ACCESSORY PARTS / PACKAGING PARTS