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NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro-
vided for reference only. Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician. Improper PC board repairs could result in damage to the
machine.
ELECTRICAL DIAGRAMS
G-23
POWER WAVE 450
PC BOARD ASSEMBLY-SWITCH
Ch’ge. Sht. No.
2390-1
1-6-95B
5-19-95F
8-25-95A
7-25-97F
7-25-97J
9-22-2000
INVERTER WELDERS
SWITCH P.C. BOARD ASSEMBLY
JLV
FULL
2390-1
R.M. 2-16-94
L8982-1
THE LINCOLN ELECTRIC CO.
CLEVELAND, OHIO U.S.A.
EQUIP.
TYPE
SCALE
DR DATE CHK
REF.
SUBJECT
SUP’S’D’G
SHT.
NO.
G
G
ITEM
REQ’D
PART NO. DESCRIPTION
CAPACITORS = MFD/VOLTS
INDUCTANCE = HENRIES
RESISTANCE = OHMS
{
{
B11,B12
D1,D2,D3,D4,D5,D6,D7,D8,D9 10 T12705-34 1N4936
D10
R27,R33,R34
A1 1 M16100-8 ELECTRONIC MODULE (SS)
A2 1 M16100-7 ELECTRONIC MODULE (SS)
B1,B2,B3,B5,B6,B7,B9,B10 10 T13157-6 TAB TERMINAL
C1,C5,C6,C7 4 S16668-5 .022/50
C2,C8 2 S16668-4 2700pF/50
C3,C4 2 S13490-112 .047/1200
DZ1,DZ2,DZ3,DZ12 4 T12702-27 1N4740
DZ4,DZ7 2 T12702-29 1N4744A
DZ5,DZ6,DZ8,DZ9 4 T12702-40 1N4735
Q1,Q2,Q3,Q10 4 T12704-73 IC PKG MOSFET (SS)
Q4,Q12 2 T12704-68 2N4401
Q5,Q6,Q7,Q8,Q9,Q11 6 T12704-69 2N4403
R1,R3,R5,R24 4 S19400-1000 100 1/4W
R2,R4 2 S19400-2210 221 1/4W
R6,R8,R9,R17,R19,R25,R26 10 S19400-10R0 10 1/4W
R38,R39,R40,R41 4 S19400-3922 39.2K 1/4W
R7,R30 2 S19400-1501 1.5K 1/4W
R10,R32 2 S19400-1502 15K 1/4W
R12,R14,R20,R21 4 S19400-1001 1K 1/4W
R13,R31 2 S19400-20R0 20 1/4W
R35,R36 2 S19400-47R5 47.5 1/4W
R16,R23 2 S19400-2212 22.1K 1/4W
R18,R29,R37,R42 4 S19400-4750 475 1/4W
0
2.41
6.50
0
4.13
8.25
1
R11,R15,R22,R28,R43,R44 8 S19400-2R00 2 1/4W
R45,R46
G2390-1
R35
R36
R37
R42
R38
R39
R40
R41
R16
R14
R13
R12
R10
R7
R5
R4
R32
R2
R24
R31
R30
R20
R23
R21
R18
R3
R1
R29
R17
R8
R6
R9
R33
R34
R27
R25
R26
R19
A2
A1
C8
C2
C5
C6
C1
C7
C4
C3
D6
D1
DZ8
DZ9
D7
DZ12
DZ7
D8
DZ3
DZ4
DZ5
DZ6
D2
D3
D4
D5
D10
D9
DZ1
DZ2
Q2
Q3
Q1
Q10
B8 B4
Q7
Q6
Q5
Q4
Q9
Q8
Q12
Q11
R15
R43
R11
R44
R22
R45
R28
R46
B12 B11 B9
B10
B3
B7
B5
B6 B2 B1
V400 SWITCH
G-23
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