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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-13
POWER WAVE 450
PC BOARD ASSEMBLY-POWER
Ch’ge. Sht. No.
1-6-95B
3-29-96K
3-29-96L
7-25-97K
7-9-99F
DB/FV
3-9-94
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
FULL
FM
POWER P.C. BOARD ASSEMBLY
.20
4.00
7.80
8.00
.20 5.63
11.05
11.25
0
0
±.04
±.04
CAPACITORS = MFD/VOLTS
RESISTORS = OHMS
2163-1
2163-1
INVERTER WELDERS
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
C27,C29,C30,C35,C38
D41,D42,D43,D58
D33,D36,D39,D46,D47,D60
DZ12
R137,R138
R163,R164
R187,R188,R197
R69,R70
R57,R61,R186,R190,R191,R194
C1,C2 2 S13490-141 3900/80V
C3,C4,C5,C19,C20,C22,C24 12 S13490-25 4.7/35
C25,C26,C28,C32,C34,C36
C37,C39,C139,C140,C141
C8 1 S16668-6 4700pF/50
C9,C10 2 S13490-76 .001/400
C11,C14 2 S13490-42 1.0/35
C12,C176,C177,C178,C189 5 S16668-5 .022/50
C17 1 S13490-40 2.7/50
C33 1 S13490-121
D1,D2,D3,D4 4 S18395-22 DIODE HS ASBLY
C40,C41,C42 3 T11577-58 .0047/3000V
D5,D6,D7,D8,D17,D18,D19 23 T12705-34 1N4936
D24,D25,D27,D28,D29,D31
D32,D34,D35,D37,D38,D40
D9,D10 2 T12199-2 1N4007
D11,D12,D20,D23,D26,D30 12 T12199-1 1N4004
D13,D14,D15,D16,D21,D22 6 T12705-59 600V/3A
D59 1 T12705-14 DIODE
DZ2,DZ3,DZ4,DZ7,DZ8,DZ9 7 T12702-29 1N4744A
DZ5 1 T12702-19 1N4742A
DZ6,DZ17 2 T12702-40 1N4735
DZ10,DZ11,DZ13,DZ14,DZ16 5 T12702-17 1N5361B ZENER DIODE
DZ115 1 T12702-52 1N4733A
J40,J41 2 S20351-16 HEADER
J42,J44 2 S20351-12 HEADER
J43 1 S20351-4 HEADER
L3,L6,L8,L9,L10,L11,L12,L116 8 T12218-12 CHOKE
L4,L7 2 T12218-11 INDUCTOR
L119,L120 2 T12218-9 .39mH
OCI1 1 S15000-10 OPTO ISOLATOR
Q1,Q3,Q7,Q12 4 T12704-68 2N4401
Q2,Q4,Q15 3 T12704-69 2N4403
Q9 1 T12704-35 NPN TRANSISTOR
Q13 1 S18395-19 PNP TRANSISTOR H.S. ASBLY
R1,R130,R139 3 T14648-19 1K 5W
R3,R4,R12,R13,R14,R15,R56 13 S19400-1000 100 1/4W
R5,R35,R36,R40,R135,R136 8 S19400-4751 4.75K
R6 1 S19400-2212 22.1K 1/4W
R7,R11,R16,R26,R34,R162 8 S19400-1001 1K 1/4W
R8 1 T10812-62 500 1/2W TRIMMER
R9,R22,R23,R24,R25,R29,R31 11 S19400-1002 10K 1/4W
R10,R142,R143,R144,R145 8 S19400-2211 2.21K 1/4W
R17,R18,R196 3 S19400-26R7 26.7 1/4W
R19 1 T12300-80 5 WATT 0.5 OHM RESISTOR
R21,R32,R33 3 S19400-1003 100K 1/4W
R27,R177 2 S19400-1004 1M 1/4W
R28 1 S19400-1372 13.7K 1/4W
R30,R195 2 S19400-1212 12.1K 1/4W
R37 1 S19400-2671 2.67K 1/4W
R39 1 S19400-1301 1.3K 1/4W
R55 1 S19400-2213 221K 1/4W
R59 1 S19400-2670 267 1/4W
R63,R64,R65,R66,R67,R68 8 S19400-2000 200 1/4W
R80 1 S19400-3321 3.32K 1/4W
R83,R92,R93,R150 4 S19400-1501 1.5K 1/4W
R86 1 S19400-2430 243 1/4W
R107,R156 2 S19400-1500 150 1/4W
R109,R110,R192,R193 4 S19400-3010 301 1/4W
R167,R168,R169,R170 4 S19400-2431 2.43K 1/4W
R184 1 S19400-6812 68.1K 1/4W
R185 1 S19400-4752 47.5K 1/4W
R198 1 S19400-4750 475 1/4W
T1 1 M16744-1 TRANSFORMER
T2 1 M16744-4 TRANSFORMER
T3 1 M16744-3 TRANSFORMER
T4 1 M16744-2 TRANSFORMER
T5,T6 2 T12737-7 PULSE TRANSFORMER
TP1,TP2,TP3 3 T13640-18 160J
X1 1 M15458-3 PWM CONTROLLER,IC
X2 1 S15128-11 14 PIN QUAD COMPARATOR
X4 1 S18395-8 REGULATOR ASSEMBLY
X5 1 S18395-7 S15128-15 ON S18104-5
X8 1 S18395-13 5V REG. ASBLY
C6,C7,C13,C15,C16,C21,C23 23 S16668-11 . 1/50
Q8,Q10,Q11 3 T12704-80 TRANSISTOR-NMF
Q111 1 T12704-37 TRANSISTOR-P
X6 1 S15128-12 IC - VOLT REG
X7 1 S15128-6 IC - VOLT REG
X9 1 S15128-7 IC - VOLT REG
X10 1 S15128-5 IC - VOLT REG
X3 1 M15102-3 RESET I.C. UNDERVOLT. SENSING CIR. (SS)
Q5,Q6 2 T12704-61 TRANSISTOR (SS)
C159,C165,C166,C175,C191
R103
R104
R105
R106
R107
R108
R110
R109
R89
R92
R88
R93
R86
R83
R80
R76
R57
R56
R59
R61
R69
R68
R15
R14
R13
R11
R17
R18
R16
R12
R5
R2
R39
R36
R37
R35
R34
R55
R30
R31
R40
R6
R7
R10
R22
R23
R24
R25
R26
R27
R28
R29
R9
C9
C10
X10
X9 X7
X6
Q8
Q6
Q5
C37
C6
C7
C13
C34
C39
C25
C23
C21
C32
C28
C26
C15
C36
C8
C12
C3
C38
C24
C35
C30
C20
C4
C19
C22
C29
C27
C5
C17
C14
C11
C102
DZ115
D58
DZ4
DZ3
D43
D42
D41
D40
D25
D24
D18
D19
D29
D28
D31
D32
D35
D34
DZ8
DZ7
D38
D37
D17
DZ12
DZ9
D27
D36
D30
D39
D20
D26
D23
D33
D9
D10
DZ13
DZ14
DZ10
DZ11
X2
X1
C33
OCI1
R19
R8
Q4
Q9
X3
Q1
Q2
Q3
T1
T2
T3
T4
Q10 Q11
X5
Q111
C18
DZ5
C139 C140
C141
C159
C165
C166
C175
R135
R136
R137
R138
R142
R143
R144
R145
R150
R156
R157
R162
R163
R164
R167
R168
R169
R170
R177
R180
R184
R185
C16
L7
L4
T5 T6
CR1
CR2
C176
C177
C178
C189
R186
R187
R188
R190
R191
R192
R193
R194
R195
R67
R70
R196
DZ6
DZ16
C40
C41
D11
D12
D46
D47
Q7
Q12
R3
R4
R32
R33
R197
R63
R64
R65
R66
D7
D8
D6
D5
G2163-1
R198
DZ17
Q13
DZ2
R1
R130
X8
X4
L116
L6
L8
L3
L9
L10
L11
L12
C1
C2
D59
D16
D14
D13
D15
D21
D22
L120
L119
C42
D1
D2 D3
D4
D60
Q15
R139
TP1
TP2
TP3
R21
C191
C190
POWER WAVE POWER
J42 J44
J41 J40
J43
C18,C102 2 S13490-68 2/150
C190 1 T11577-26 .1/100
R76,R88,R89,R180
R108,R157
R2,R103,R104,R105,R106, 7 S19400-1822 1 8.2K 1/4W
1111
CR1,CR2 2 S13929-8 RELAY, 12V DC
G-13
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