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-10
CV655
PC BOARD ASSEMBLY - FIRING BOARD
2699-3
10-8-99
G
FIRING P.C. BOARD ASSEMBLY
.20
4.75
9.80
10.00
.20
5.80
6.00
0
0
1
~.04
~.04
DESCRIPTION
PART NO.
ITEM
REQ’D
CAPACITORS = MFD/VOLTS
RESISTORS = OHMS
CV-655/DC-655
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
C42
C41
C40
C39
C38
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
J5
J6
J4
J7
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
G2699-3
LED2
LED1
LED3
LED5
LED4
LED6
LED7
LED8
LED9
LED10
OCI2
R218
C44
C45
C46
C47
C48
C49
C1,C3,C5,C6,C9,C12,C13,C14
24
S16668-5
.022/50
C15,C16,C23,C25,C26,C28
C29,C34,C35,C37,C44,C45
C46,C47,C48,C49
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
C38,C39,C40,C41,C42,C43
6
T11577-46
.05/600V
D1,D4,D7,D11,D12,D14,D15
34
T12199-1
1N4004
D24,D27,D28,D29,D30,D31
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
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
DZ1,DZ6,DZ9
3
T12702-52
1N4733A
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
DZ14,DZ15
J4
1
S18248-6
HEADER
J5
1
S18248-16
HEADER
J6
1
S18248-4
HEADER
J7
1
S18248-8
HEADER
LED1,LED2,LED3,LED4,LED5
10
T13657-2
RED LED
LED6,LED7,LED8,LED9,LED10
OCI1,OCI3
2
S15000-10
OPTO ISOLATOR
OCI2
1
S15000-12
OPTOCOUPLER TRIAC DRIVER
Q1
1
T12704-80
HEXFET TRANS. (SS)
Q2,Q3,Q4,Q5,Q6,Q7
6
T12704-73
IC PKG MOSFET (SS)
QU1,QU2,QU3
3
T12707-4
2N6027
R18,R36,R64,R82,R116,R134
6
T14650-6
RESISTOR,WW,15W,50,5%,SQ
R37
1
T14648-15
700 5W
R44,R45,R46,R195,R227,R229
13
S19400-1002
10K 1/4W
R251,R254,R255,R258,R259
R262,R263
R83,R91,R135,R139,R163
13
S19400-1500
150 1/4W
R164,R184,R188,R202,R203
R206,R245,R249
R84,R92,R167,R174,R207
6
S19400-1001
1K 1/4W
R219
R85,R86,R87,R88,R89,R90
37
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
R221,R222,R223,R224,R225
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, 15 W. RESISTOR
R158
1
T14648-1
5K 5W
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
R218
1
T14648-18
68 5W
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
TP1
1
T13640-25
MOV,90J
G-10
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