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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-6
PC BOARD ASSEMBLY-FIRING
8-25-99
FULL
DRS
3742-1
3742-1
UNLESS OTHERWISE SPECIFIED TOLERANCE
ON HOLE SIZES PER E-2056
ON 2 PLACE DECIMALS IS + .02
ON 3 PLACE DECIMALS IS + .002
ON ALL ANGLES IS + .5 OF A DEGREE
MATERIAL TOLERANCE (" ") TO AGREE
WITH PUBLISHED STANDARDS.
t
DR.
SCALE
DATE CHK. NO.
SHT.
TYPE
EQUIP.
SUBJECT
THE LINCOLN ELECTRIC CO.
CLEVELAND, OHIO U. S. A.
Ch'ge. Sht. No.
G
FIRING P.C. BOARD ASSEMBLY
FZ/DRS
DESCRIPTIONPART NO.ITEM REQ'D
CAPACITORS = MFD/VOLTS
RESISTORS = OHMS
C1,C3,C5,C6,C9,C12,C13,C14 19 S16668-5 .022/50
C15,C16,C23,C25,C26,C28
C2,C4,C10,C11,C21,C22 6 S13490-95 .33/50
C7,C8,C18,C20,C24,C31,C33 7 S13490-108 .15/100
C17,C19 2 T11577-41 .022/400
C30 1 S13490-74 10/150
C32 1 S13490-73 20/50
R164,R184,R188,R202,R203
R206,R245,R249
R159,R234,R241 3 S19400-1003 100K 1/4W
R161,R197,R215 3 S19400-3323 332K 1/4W
R162,R198,R216 3 S19400-2671 2.67K 1/4W
R165,R166,R192,R193,R239 6 S19400-6190 619 1/4W
R240
R181,R199,R205,R231,R242 5 S19400-1501 1.5K 1/4W
R182,R200,R243 3 S19400-4750 475 1/4W
R183,R201,R244 3 T10812-67 100K 1/2W TRIMMER
R194,R226,R228 3 S19400-33R2 33.2 1/4W
R204,R235 2 S19400-1000 100 1/4W
R217,R232,R233 3 S19400-39R2 39.2 1/4W
D1,D4,D7,D11,D12,D14,D15 34 T12199-1 1N4004
D32,D33,D34,D35,D36,D38,D43
D44,D47,D49,D50,D51,D52,D53
D54,D59,D60,D61,D62,D63,D64
D2,D3,D5,D6,D8,D9,D16,D17 26 T12199-2 1N4007
DZ14,DZ15
R251,R254,R255,R258,R259
R262,R263
REF.
DC-600/MULTI-SOURCE
C29,C34,C35,C37,C44
D24,D27,D28,D29,D30,D31
D18,D20,D21,D22,D39,D40,D41
D42,D55,D56,D57,D58,D65,D66
D67,D68,D69,D70
D71 1 T12705-46 1000V/3AMP DIODE
R221,R222,R223,R224,R225
R266
R158 1 T14648-1 5K 5W
R218 1 S24000-68R0 68 3/4W
TP1 1 T13640-25 MOV,90J
G2699-1,G3660-1,L9073-3
XD-UF
C39,C41,C43 3 T11577-46 .05/600V
C38,C40,C42 3 T11577-58 .0047/3000V
FIRING BOARD
R265
R264
R263
R262
R261
R260
R259
R258
R257
R256
R255
R254
R202
R164
R91
R143
R230
R159
R195
R227 R229
R241
R231
R232
R233
R253
R194
R226 R228
R251
R252
R236
R235
R205
R239
R192
R166
R215
R197
R161
R214 R196
R160
R216
R198
R162
R243 R200
R182
R242 R199
R181
R46
R45
R44
R234
R203
R204
R217
R208
R220
R175
R168
R93
R85
R240
R193
R165
R237
R190
R141
R247 R186 R137
R213
R180
R98
R225 R173
R90
R238
R191
R142
R248 R187 R138
R209
R210
R211
R212
R176
R177
R178
R179
R94
R95
R96
R97
R221
R222
R223
R224
R169
R170
R171
R172
R86
R87
R88
R89
R219
R185
R245
R206
R246
R184
R163
R167
R189
R139
R92
R250
R249
R207
R188
R174
R136
R135
R83
R84
R140
SCR7
C37
C35 C34
C25
C16
C9
C28 C23
C29
C26
C14
C12
C15 C13
C5
C1
C6
C3
C33
C31
C24
C18
C8
C20
C7
C11
C21
C4
C22 C10 C2
C32
C30
C17
C19
C43
C41
C39
DZ15 DZ14
DZ13
DZ12
DZ11
DZ10
DZ9
DZ8
DZ6
DZ7
DZ5
DZ2
DZ1
D70
D69
D68
D67
D66
D65
D15
D63
D36
D59
D52
D61
D60
D62
D64
D54
D44
D32
D50 D38
D24
D53 D43
D31
D2
D8
D5
D3
D9
D6
D1
D4
D7
D27
D33
D28
D34
D16
D14
D35
D51
D47
D30
D12
D49 D29
D11
D58
D56
D57
D55
D41
D39
D42
D40
D17
D20
D21
D18
DZ4
DZ3
Q7 Q6
Q5 Q4 Q3 Q2
OCI1
OCI3
R244
R201
R183
R145 R144
SCR6
SCR5
SCR3
SCR4
SCR1
SCR2
Q1
QU1
QU2
QU3
R116
R134
R18
R36
R37
R64
R82
R158
TP1
D71
D22
LED2
LED1
LED3
LED5
LED4
LED6
LED7
LED8
LED9
LED10
OCI2
R266
C44
G3742-1
R218
C38
C40
C42
J8 J5
J6
J4 J7
12-17-99
DZ1,DZ6,DZ9 3 T12702-52 1N4733A
Q1 1 T12704-80 HEXFET TRANS. (SS)
DZ2,DZ5,DZ7 3 T12702-4 1N4747
DZ3 1 T12702-25 1N5357B
DZ4 1 T12702-33 1N5347B
DZ8,DZ10,DZ11,DZ12,DZ13 7 T12702-29 1N4744A
J4 1 S24020-6 HEADER, VERTICAL
J5 1 S24020-16 HEADER, VERTICAL
J6 1 S18248-4 HEADER
LED1,LED2,LED3,LED4,LED5 10 T13657-2 RED LED
J7 1 S24020-8 HEADER, VERTICAL
R18,R36,R64,R82,R116,R134 6 T14650-6 RESISTOR,WW,15W,5%,SQ
J8 1 S24020-10 HEADER, VERTICAL
LED6,LED7,LED8,LED9,LED10
OCI1,OCI3 2 S15000-10 OPTO ISOLATOR
OCI2 1 S15000-12 OPTO TRIAC DRIVER
Q2,Q3,Q4,Q5,Q6,Q7 6 T12704-73 IC PKG MOSFET (SS)
R44,R45,R46,R195,R227,R229 13 S19400-1002 10K 1/4W
QU1,QU2,QU3 3 T12707-4 2N6027
R83,R91,R135,R139,R163 13 S19400-1500 150 1/4W
R37 1 T14648-15 700 5W
R84,R92,R167,R174,R207,R219 6 S19400-1001 1K 1/4W
R85,R86,R87,R88,R89,R90 38 S19400-2000 200 1/4W
R93,R94,R95,R96,R97,R98
R143,R168,R169,R170,R171
R172,R173,R175,R176,R177
R178,R179,R180,R208,R209
R210,R211,R212,R213,R220
R136,R140,R160,R185,R189 9 S19400-2670 267 1/4W
R196,R214,R246,R250
R137,R138,R141,R142,R186 13 S19400-10R0 10 1/4W
R187,R190,R191,R237,R238
R247,R248,R253
R144,R145 2 T14650-1 1500 OHMS, 15W. RES
R230 1 S19400-2001 2.0K 1/4W
R236 1 S19400-2002 20K 1/4W
R252 1 S19400-3321 3.32K 1/4W
R256,R260,R264 3 S19400-8251 8.25K 1/4W
R257,R261,R265 3 S19400-2211 2.21K 1/4W
SCR1,SCR2,SCR3,SCR4,SCR5 6 S15161-19 4A.,400V. SCR
SCR6
SCR7 1 S18395-21 SCR HS ASBLY
G-6
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