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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-8
POWER WAVE 450
PC BOARD ASSEMBLY-CONTROL
2861-2
G
ITEM
REQ’D
PART NO. DESCRIPTION
0
.20
4.00
7.80
8.00
.04
0
.20
5.63
11.05
11.25
.04
ITEM
REQ’D
PART NO. DESCRIPTION
X XXXXXXXX
XXXXXXXXXXX
XXXXX X
XXX
XXXXXXXXXXXXX
XXXXXXX XXX
XXXXXXXXXXXXXX
XXXXXXXXXXXX
XXX
XXX
XXXXXXXXX
XXXXXXX
XXXXXXXXXX
XX XXX
XXX
XXXXXXXXX
X XXXXXX
XXXXXXXXX
XXXXXXXX
XXXXXXXX
XXX XXX
X XXX
XX XXX
XXX
R150 1 S24073-2 500,1/2W,TRIMMER
R153,R160,R162,R163,R164 16 S19400-10R0 10 1/4W
R165,R166,R225,R260,R305
R306,R307,R309,R312,R313
R316
R155,R178,R220,R253,R256 6 S19400-1500 150 1/4W
R299
R159 1 S19400-1503 150K 1/4W
R195,R197,R207,R211,R212 8 S19400-3321 3.32K 1/4W
R241,R289,R290
R200,R201,R208,R234 4 S19400-5622 56.2K 1/4W
R204,R240,R247,R249 4 S19400-1301 1.3K 1/4W
R205,R238,R250,R252,R282 6 S19400-2000 200 1/4W
R286
R206,R298 2 S19400-5111 5.11K 1/4W
R215 1 S19400-2671 2.67K 1/4W
R217,R219,R254,R288 4 S19400-2213 221K 1/4W
R224,R237,R248,R261 4 S19400-2001 2.0K 1/4W
R236,R243,R245 3 S19400-6192 61.9K
R273 1 S19400-2212 22.1K 1/4W
R276,R281,R285,R303,R304 5 S19400-6811 6.81K 1/4W
R283,R287 2 S19400-8250 825 1/4W
R291,R292 2 S19400-3320 332 1/4W
R328,R329,R330,R331,R332 8 S19400-2210 221 1/4W
R333,R334,R335
TP2,TP3,TP4,TP5 4 T13640-11 45J
X1 1 S17900-1 QUAD 2-INPUT NAND (SS)
X3,X5 2 S17900-13 QUAD TWO INPUT AND GATE (SS)
X11,X12 2 S19650-7 IC,CMOS,TRNSCVR,BUS (SS)
X14,X37 2 M15105-4 IC,CMOS,CONVERTER,A/D (SS)
X16,X20,X55 3 S17900-25 IC,CMOS,LATCH,3-STATE (SS)
X21 1 S19650-1 HEX INVERTER (SS)
X24 1 M14428-2 CRYSTAL,(MODULE),25.0MHZ
X25 1 S21292-5 IC,CMOS,MCU,DSP (SS)
X26 1 S15128-4 LM224 OP-AMP
X27,X28,X29,X30,X68,X90 6 S19650-5 IC,CMOS,LATCH,3-STATE (SS)
X39 1 S21294-1 IC,CMOS,PLD,GENERIC (SS)
X44 1 S19650-6 IC,CMOS,MUX,4-INPUT (SS)
X45,X46 2 M15104-11 I C,CMOS,EEPROM,FLASH (SS)
X56 1 M14513-4 IC,CONVERTER,D/A (SS)
X61,X71,X92 3 S15128-18 QUAD-OP AMP
X63,X64 2 S17900-22 QUAD ANALOG SWITCH (SS)
X91 1 S15128-10 VOLTAGE REF.
X93 1 S15128-21 IC,COMPARATOR,HI-SPD,5-V
Y2 1 S16665-5 8.0 MHZ
C1,C2,C6,C8,C11,C16,C17 54 S16668-11 .1/50
C18,C19,C20,C21,C22,C23
C24,C27,C28,C29,C31,C32
C34,C37,C40,C41,C42,C43
C44,C45,C48,C59,C60,C61
C62,C63,C64,C65,C66,C67
C68,C69,C73,C77,C79,C81
C83,C84,C95,C97,C98,C100
C105,C111,C119,C155,C156
C3,C25,C26 3 S16668-2 47pF/100
C4,C5,C49,C50,C51,C57,C85 7 S16668-1 22pF/100
C7,C47,C70,C130 4 S13490-42 1.0/35
C10,C13,C15 3 S13490-25 4.7/35
C30,C56,C90,C126,C135 5 S16668-8 330pF/100
C33,C35,C38,C39 4 S13490-39 18/15
C52,C53,C54,C106,C108,C114 12 S16668-7 820pF/50
C120,C134,C137,C138,C139
C140
C87,C91,C96,C101,C132,C133 15 S16668-5 .022/50
C141,C142,C144,C145,C148
C150,C151,C152,C153
C88 1 S13490-85 .27/50
C107,C110,C112,C115,C116 10 S16668-9 150pF/100
C117,C123,C127,C128,C136
C109,C113,C121,C124 4 S16668-4 2700pF/50
C118,C122,C125,C129 4 S13490-3 .0047/400
C143,C146 2 S16668-6 4700pF/50
D2,D17,D18,D19,D20,D21,D22 27 T12199-1 1N4004
D25,D26,D27,D28,D29,D30
D31,D32,D33,D34,D35,D36
D37,D38,D39,D40,D41,D42
D43,D46
D4,D5,D10,D11,D12,D13,D14 11 T12705-22 1N914
D15,D16,D24,D47
D23,D50,D51,D52 4 T12705-34 1N4936
DZ2,DZ5 2 T12702-40 1N4735
DZ3,DZ4 2 T12702-45 1N4746A
DZ6,DZ27,DZ34,DZ35 4 T12702-29 1N4744A
DZ7,DZ8,DZ9,DZ10,DZ11,DZ12 20 T12702-52 1N4733A
DZ13,DZ14,DZ15,DZ16,DZ17
DZ18,DZ19,DZ20,DZ21,DZ22
DZ30,DZ31,DZ32,DZ33
J20,J21 2 S20351-8 HEADER
J22 1 S20351-12 HEADER
J23,J26 2 S20351-6 HEADER
J24 1 S20351-14 HEADER
J25 1 S20351-10 RT. ANGLE HEADER
J27,J28 2 S20351-4 HEADER
OCI2,OCI3,OCI4,OCI7,OCI8 5 S15000-10 OPTO ISOLATOR
OCI5,OCI6 2 S15000-23 6N136 OPTOCOUPLER
Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9 17 T12704-68 2N4401
Q10,Q13,Q16,Q19,Q20,Q23
Q28,Q33,Q34
Q12 1 T12704-73 IC PKG MOSFET (SS)
Q14,Q15,Q22,Q27,Q31,Q32 6 T12704-69 2N4403
Q17,Q18,Q21,Q25 4 T12704-35 NPN TRANSISTOR
Q24,Q26,Q29,Q30 4 T12704-47 .5AMP / 300 VOLT PNP
R2,R4,R8,R9,R10,R12,R13 52 S19400-1002 10K 1/4W
R14,R16,R18,R20,R32,R35
R41,R58,R59,R60,R61,R62
R63,R65,R72,R74,R158,R169
R170,R172,R185,R193,R198
R202,R210,R213,R222,R235
R239,R246,R251,R255,R257
R262,R264,R267,R268,R279
R284,R295,R296,R297,R317
R318,R319
R3,R7,R68,R70,R142,R154 21 S19400-4751 4.75K
R161,R214,R216,R302,R310
R314,R336,R337,R338,R339
R341,R342,R343,R344,R345
R5,R37,R87,R293,R294 5 S19400-2211 2.21K 1/4W
R6 1 T14231-2 10M 1/2W
R11,R99,R141,R148,R175 10 S19400-1003 100K 1/4W
R209,R223,R263,R266,R277
R15,R36,R38,R39,R40,R64 50 S19400-1001 1K 1/4W
R67,R69,R71,R73,R89,R90
R91,R92,R93,R94,R97,R108
R110,R118,R120,R127,R135
R152,R156,R168,R171,R173
R179,R180,R183,R186,R187
R188,R189,R191,R192,R199
R203,R221,R228,R231,R258
R275,R280,R300,R301,R308
R311,R315
R17,R19,R109 3 S19400-1502 15K 1/4W
R21,R23,R24,R182,R227,R232 8 S19400-26R7 26.7 1/4W
R242,R244
R22,R29,R274 3 S19400-2670 267 1/4W
R25,R28,R270,R271 4 S19400-1000 100 1/4W
R26,R27,R30,R31,R34,R42 28 S19400-4750 475 1/4W
R43,R44,R45,R46,R47,R48
R49,R50,R51,R52,R53,R54
R55,R56,R57,R122,R128,R146
R147,R167,R177,R184
R33,R86,R229,R230 4 S19400-2672 26.7K 1/4W
R66,R84 2 S19400-4752 47.5K 1/4W
R96,R98 2 S19400-1501 1.5K 1/4W
R119,R126,R134,R138,R226 7 S19400-6810 681 1/4W
R259,R327
R121,R129,R130,R174,R181 6 S19400-3322 33.2K 1/4W
R278
R149,R194,R196,R218,R233 5 S19400-7500 750 1/4W
X2 1 M15102-3 UNDERVOLT. SENSING CIR. (SS)
X10 1 M15101-6 MPU (SS)
X13 1 s21291-5 ROM ASSEMBLY (SS)
X15 1 M15104-6 MPU (SS)
X41 1 S17900-24 QUAD SCHMITT NAND (SS)
X42,X43 2 S19650-3 1-OF-4 DECO/DEMUX (SS)
X54 1 M15105-11 CONVERTER,D/A (SS)
X41
X21
X42
X16
Y2
X20
OCI2
OCI3
OCI4
OCI7
OCI8
R29
R22
R24
R21
R23
DZ6
R20
R25
R26
R27
R28
C23
DZ5
R2
R10
R9
R8
D2
C2
C7
C21
C20
C22 C27
C29
C28
C18
C17
C16
C19
R34
R35
R40
DZ8
C4
C5
R3
R4
R5
C3
C6
R36
R37
R39
R38
DZ9
C25
C26
C13
C15
DZ4
DZ3
DZ2
C10
C11
X26
R11
R30
R31
DZ7
C24
R13
R14
R12
R15
R16
R17
R18
R19
R32
C34
C33
C35
C40
C39
C38
C37
R74
R266
C47
C48
R72
R65
C32
C70
C68
C69
C67
C60
C61
C59
C130
C62
C64
C65 C63
C42
C44
X43
R41
C30 R263
R264
R59
R60
R58
R62
R63
R61
R50
R51
R52
R49
R44
R55
R57
R45
R48
R53
R46
R56
R47
R54
R42
R43
DZ11
DZ17
DZ12
DZ14
DZ15
DZ13
DZ16
DZ10
R262
C56
C66
C41
C31
C43
C8
R189
R191
R186
R187
R188
R159
R165
R160
R164
R163
R162
R161
R87
C81
R171
R98
R94
C85
R97
R96
C73
R177
R182
R184
C105
DZ34
DZ35
R270
R271
C84
R121
R122
C77
C100
R126
R169
R167
R170
C95
R128
R129
C79
R193
R194
C124
C106
R242
D33
D39
R201
C110
TP5
C129
R261
TP3
TP4
R220
D22
R257
R219
R255
R254
R256
D42
R238
D30
R240
R239
R241
R250
D34
R195
R251
R249
R247
R246
R252
R197
D17
R204
R210
R205
R207
D21
R217
C116
R206
R212
R215
C115
C117
R213
R214
D18
D19
R216
D20
R211
R235
R234
C123
D28
D27
D26
R232
C120
C122
R233
C121
R237
D29
D36
R200
C107
R198
C108
C125
D38
D35
D31
D32
R244
R196
R248
C109
C112
R208
DZ30
R209
R202
C114
R218
C113
C111
R227
R223
D41
D40
D43
R253
C126
DZ31
R222
R226
R225
R221
C119
DZ32 DZ33
R260
R259
R258
R228
C128
C127
C97
C98
R147
R146
C88
Q12
DZ27
R153
C83
C90
R224
TP2
D25
C118
D23
D37
X55
D46
R71
R73
R70
D50
R179
R68
D51
R180
R173
X5
R119
R327
R134
R138
R315
R316
X91
X92
R314
R312
R311
R313
R307
R308
R309
R301
R306
R305
OCI6
OCI5
R192
R231
R199
R203
X71
R89
R135
R90
R91
R92
R93
R149
R152
R229
R230
R142
R118
R178
R156
R67
R168
R166
R185
R183
X61
C101
R127
R155
C96
R274
R278
R277
R281
R282
R283
C137
C138
R286
R287
R279
R275
R276
C134
C135
C136
R299
R300
R302
R284
R285
C139
C140
R288
C132
C133
R289
R290
R291
R293
C142
R295
R304
R292
C144
R294
C145
R296
C146
R298
D52
R303
R310
R317
R318
R319
C148 C150
C141
C87
C143
C151
C152
C153
C155
C156
R86
R158
R84
C91
R245
R243
R236
R120
R154
R99
R175
R148
R141
R174
R181
R297
R273
R64
R69
R7
R110
X10
X30
X13
X56
X44
X93
X29
X28
X39
X27
X68
X24
X54
X90
X37
R108
R109
X3
C45
X1
C1
X14
C49
C50
C51
C52
C53
C54
DZ18
DZ19
DZ20
DZ21
DZ22
R33
R66
R130
R172
X63
X64
CONTROL
POWER WAVE
R280
C57
R328
R329
R330
R331 R332
R333
R334
R335
R267
R268
R336
R337
R338
R339
R341
R342
R343
R344
R345
X45
X46
R150
X15
X25
X38
D47
D11
D12
D16
D14
D13
D24
D10
D15
D4
D5
X12
X11
J25 J22 J24
J27 J28
J23
J26
J20 J21
R6
Q34
Q33
Q10
Q14
Q15
Q5 Q4
Q6 Q7
Q13
Q24
Q21
Q30
Q18
Q26 Q25
Q23
Q20 Q22
Q32
Q19
Q31 Q16
Q28 Q27
Q29
Q17
Q9
Q8
Q3
X2
Q2
G2861-2
CAPACITORS = MFD/VOLTS
INDUCTANCE = HENRIES
RESISTANCE = OHMS
X38 1 S21293-3 DSP ASSEMBLY (SS)
XXXXXXXXXXXX
XXXXXXXXXXXX
XXXX
XXXX
11-12-99C
±
±
G-8
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