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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
LN-10
PC BOARD ASSEMBLY-CONTROL
Ch’ge. Sht. No.
G3168-1
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. REQ’D.ITEM
3168-2
3168-2
CONTROL P.C. BOARD ASEMBLY
FULL
DESCRIPTIONPART NO.
DESCRIPTIONPART NO.
CAPACITORS = MFD/VOLTS
RESISTORS = OHMS, 1/4 WATT UNLESS OTHERWISE SPECIFIED.
INDUCTANCE = HENRYS
.18 5.17 5.85 9.82
10.00
3.13
5.48
8.82
9.00
±04
±.04
0
0
3-5-99F
4.97
.18
LJB 12-8-98
LN-10
J1
J2 J3
J4
J7
C78
C56
C66
D47
R146
C60
D35
R182
DZ9
R179
Q14
R158
R180
R156
D23
R110
R154
C80
C58
R137
R142
R139
R140
C59
R138
D36
X28
C81
R177
C75
D48
R143
C79
C57
D34
X29
C77
R181
R178
R176
R174
C76
R175
R111
D20
C41
X26
C42
C46
C43
D24
R104
C40
R159
C69
C37
C49
R161
X5
C53
R127
C48
R128
C52
R105
R122
D21
R107
R109
R112
R108
D22
R106
X4
C34
R148
R153
D41
C62
C61
R147
D38
R149
R151
R157
D40
C68
D39
C67
X27
D42
R103
X1
X2
R44
R46
R34
DZ3
DZ4
DZ5
DZ6
DZ1
DZ2
Q4
Q1
Q3
Q5
Q7
D26
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D19
D25
D27
D28
D29
D30
D31
D45
D46
D49
L1
L2
L3
DZ8
R113
R189
R64
R85
R33
R57
X11
R42
R16
R19
R21
R49
R54
R58
R61
R73
R74
R87
R98
R102
R115
R130
R155
R162
R6
R187
R45
R92
R96
R116
R160
R169
R117
R123
R30
R55
R93
R18
R20
R24
R25
R172
R26
R27
R28
R29
R173
R186
R188
R22
R23
R125
R65
R84
R1
R2
R3
R4
R5
R8
R47
R48
R12
R13
R14
R15
R124
R59
R82
R170
R9
R10
R63
R88
R38
R120
R121
R167
R11
R51
R68
R81
R83
R86
R50
R40
R114
R171
R119
R141
R150
R7
R39
R75
R76
R90
R129
R134
R31
R32
R37
R41
R43
R53
R71
R72
R118
R126
R144
X18
R152
R60
R62
R66
R67
R69
R70
R77
R78
R79
R80
C10
C11
C12
C13
C14
C15
C16
C21
C23
C24
C25
C28
C32
C36
C38
C63
C64
C65
C71
C73
C82
X8
X9
X3
C1
C2
C3
C4
C5
C18
C26
C30
C31
C47
C51
C44
C45
C72
OCI3
OCI7
OCI8
X6
X21
X10
X16
X12
Y1
C20
C22
X22
X25
C19
C27
C50
C54
X30
X31
R200
R201
R202
R203
R204
R205
R206
R207
R208
R209
R210
R211
R212
R213
R214
R215
R216
R217
R218
R219
R220
R221
R222
R223
R224
R225
R226
R227
R228
R229
R230
R231
C9
C8
C6
C7
D50
D51
D52
D53
R232
R233
R234
R236
C100
R99
T1
OCI10
OCI2
OCI4
OCI5
OCI6
OCI1
OCI9
R17
R56
R100
R235
C33
R243
X24
TP1
J5
J8
S1
12345678
O
N
S2
12345678
O
N
M
PWRSOURCES
HEAD
Q10
Q11
Q12
Q13
LN-10 CONTROL
J6
R244
R52
R245
R246
R247
R248
4SR
+
-
R249
R250
C101
G3168-2
LED2
LED1
C1,C2,C3,C4,C5,C6,C7,C18 14 S16668-5 .022/50
C26,C30,C31,C47,C51,C58
C8,C9,C10,C11,C12,C13,C14 35 S16668-11 .1/50
C15,C16,C21,C23,C24,C25
C28,C32,C34,C36,C37,C38
C41,C42,C43,C46,C49,C53
C63,C64,C65,C67,C69,C71
C73,C81,C82,C101
C19,C33,C100 3 S13490-25 4.7/35
C20,C22 2 S16668-1 22pF/100
C27,C40,C50,C54,C68 5 S13490-42 1.0/35
C44,C45,C48,C52,C61,C62 6 S16668-8 330pF/100
C56,C78 2 S13490-138 1200/100
C57 1 S13490-39 18/15
C59 1 S13490-19 1.8/20
C60 1 S13490-4 .022/200
C66 1 S13490-94 .33/200
C72 1 S16668-10 4700pF/50
C75,C76,C77 3 S16668-4 2700pF/50
C79 1 S13490-73 20/50
C80 1 S13490-107 5600/35V
D1,D2,D3,D4,D5,D6,D7,D8,D9 31 T12199-1 1N4004
D10,D11,D12,D13,D14,D15
D16,D19,D25,D27,D28,D29
D30,D31,D34,D45,D46,D49
D50,D51,D52,D53
D20,D42,D47 3 T12705-47 4A/200V
D21,D22,D23,D24,D26,D35 12 T12705-34 1N4936
D36,D38,D39,D40,D41,D48
DZ1,DZ2 2 T12702-40 1N4735
DZ3,DZ4,DZ5,DZ6 4 T12702-38 1N4751
DZ8,DZ9 2 T12702-11 1N4745A
J1,J4 2 S18248-4 HEADER
J2 1 S18248-8 HEADER
J3 1 S18248-6 HEADER
J5 1 S21134-14 MOLEX CONNECTOR
J6 1 S21134-10 MOLEX CONNECTOR
J7 1 S18248-12 HEADER
J8 1 S18248-10 HEADER
L1,L2,L3 3 T12218-7 330uH
LED1 1 T13657-2 RED LED
LED2 1 T13657-3 GREEN LED
OCI1,OCI2,OCI3,OCI4,OCI5 8 S15000-25 OPTOCOUPLER
OCI6,OCI7,OCI8
OCI9,OCI10 2 S15000-20 PHOTO FET
Q1,Q3,Q5 3 T12704-68 2N4401
Q4 1 T12704-54 N-CHANNEL FET (SS)
Q7 1 T12704-69 2N4403
Q10,Q11 2 S20106-1 HEXFET W/ H.S. ASBLY (SS)
Q12,Q13 2 S20106-3 TRANSISTOR,IG+D,T247,600V
Q14 1 S18395-5 H.S. ASBLY (SS)
R1,R2,R3,R4,R5,R8,R47,R48 8 S19400-2670 267 1/4W
R6 1 S19400-4752 47.5K 1/4W
R7,R39,R75,R76,R90,R129 8 S19400-1001 1K 1/4W
R134,R138
R9,R10 2 S19400-1004 1M 1/4W
R11,R51,R56,R68,R81,R83 9 S19400-1500 150 1/4W
R86,R110,R157
R12,R13,R14,R15,R124 5 S19400-2671 2.67K 1/4W
R16,R19,R21,R49,R54,R58 22 S19400-4751 4.75K
R61,R73,R74,R87,R98,R102
R106,R112,R115,R130,R143
R149,R155,R162,R236,R244
R17,R45,R92,R96,R116,R160 7 S19400-3321 3.32K 1/4W
R169
R18,R20,R24,R25 4 S19400-3922 39.2K 1/4W
R22,R23,R105,R125,R142 5 S19400-2212 22.1K 1/4W
R26,R27,R28,R29,R108,R109 8 S19400-4750 475 1/4W
R147,R153
R30,R55,R93,R127,R159,R161 6 S19400-3921 3.92K 1/4W
R31,R32,R37,R41,R43,R52 36 S19400-1002 10K 1/4W
R53,R71,R72,R100,R118,R126
R144,R208,R209,R210,R211
R212,R213,R214,R215,R224
R225,R226,R227,R228,R229
R230,R231,R235,R243,R245
R246,R247,R248,R249
R33,R57 2 S19400-6810 681 1/4W
R34 1 T14648-23 20 5W
R38,R174 2 S19400-1301 1.3K 1/4W
R40,R99,R114,R171,R173 10 S19400-2211 2.21K 1/4W
R186,R188,R232,R233,R234
R42 1 T 10812-68 1K 1/2W TRIMMER
R44,R46 2 T14230-23 5.0 MEG RESISTOR
R50 1 S19400-2210 221 1/4W
R59,R82 2 S19400-3010 301 1/4W
R60,R62,R66,R67,R69,R70 7 S19400-26R7 26.7 1/4W
R182
R63,R88 2 S19400-1211 1.21K 1/4W
R64,R85 2 S19400-6190 619 1/4W
R65,R84 2 S19400-2431 2.43K 1/4W
R77,R78 2 S19400-39R2 39.2 1/4W
R79,R80 2 S19400-75R0 75 1/4W
R103,R104,R111,R119,R141 24 S19400-1000 100 1/4W
R150,R151,R200,R201,R202
R203,R204,R205,R206,R207
R216,R217,R218,R219,R220
R221,R222,R223,R250
R107,R148,R178 3 S19400-6191 6.19K 1/4W
R113,R189 2 S19400-5621 5.62K 1/4W
R117,R123 2 S19400-3741 3.74K 1/4W
R120,R121,R167,R177 4 S19400-1372 13.7K 1/4W
R122 1 S19400-6811 6.81K 1/4W
R128 1 S19400-7500 750 1/4W
R137,R176 2 S19400-1501 1.5K 1/4W
R139,R140 2 S19400-3322 33.2K 1/4W
R146 1 T14648-9 2.5K 5W
R152,R154 2 S19400-15R0 15 1/4W
R156,R158 2 T12300-86 .05/3W
R170,R175 2 S19400-3320 332 1/4W
R172 1 S19400-4422 44.2K 1/4W
R179 1 S19400-1003 100K 1/4W
R180 1 T12300-80 5 WATT 0.5 OHM RESISTOR
R181 1 S19400-1503 150K 1/4W
R187 1 S19400-5111 5.11K 1/4W
S1,S2 2 S19869-8 SPST SLIDE SWITCH PACKAGE
T1 1 S20375-1 TRANSFORMER
TP1 1 T13640-16 80J
X3 1 S17900-8 14 PIN I.C. (SS)
X4,X18 2 S17900-24 IC,74HC132,CMOS,GATE,NAND,2-IN,ST(SS)
X5,X10,X16 3 S15128-11 14 PIN QUAD COMPARATOR
X6 1 S15128-4 IC,LM224,OP-AMP
X8,X9 2 S17900-5 IC,74HC373,CMOS,LATCH,3-STATE,OCT(SS)
X11 1 S20353-4 IC,CMOS,XCVR,EIA485 (SS)
X12 1 S15128-20 AMPLIFIER
X21 1 S15128-10 IC,431,VOLTAGE REF.
X22 1 M15102-3 IC,S8054HN,CMOS,UNDERVOT-SENSING (SS)
X25 1 M15105-7 IC,CMOS,MPU,A/D,10-BIT(SS)
X26,X27 2 S15018-16 HV GATE DRIVE (SS)
X28 1 M15458-4 8 PIN IC
X29 1 S18395-3 HEAT SINK ASBLY
X30,X31 2 S17900-26 IC,74HC151,CMOS,MUX,DATA,8-INPUT (SS)
Y1 1 S16665-5 8.0 MHZ
X1 1 S24010-3 I.C., CMOS, MCU (SS)
X2 1 S24011-5 I.C., CMOS, MCU (SS)
X24 1 M15104-8 I.C., EEPROM, (SS)
4-20-2000A
G-6
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