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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-7
PRECISION TIG 185
PC BOARD ASSEMBLY - CONTROL - (G4551-1)
EN-170
S
O
L
I
D
E
D
G
E
G4551-1
PRECISION TIG 185
CONTROL PC BOARD ASSEMBLY
1:1.25
G4407-1
jbarto
Trang Nguyen
-
UNLESS OTHERWISE SPECIFIED TOLERANCE
MANUFACTURING TOLERANCE PER E2056
ON 2 PLACE DECIMALS IS ± .02
ON 3 PLACE DECIMALS IS ± .002
ON ALL ANGLES IS ± .5 OF A DEGREE
WITH PUBLISHED STANDARDS.
MATERIAL TOLERANCE (" ") TO AGREE
t
DO NOT SCALE THIS DRAWING
DRAWN BY:
DESIGN INFORMATION
ENGINEER:
APPROVED:
REFERENCE:
EQUIPMENT TYPE:
SUBJECT:
SCALE:
MATERIAL
DISPOSITION:
APPROVAL
DATE:
PROJECT
NUMBER:
UF
CRM37680
1
PAGE ___ OF ___
1
ENGINEERING CONTROLLED
MANUFACTURER:
Yes
DOCUMENT
NUMBER:
DOCUMENT
REVISION:
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED
TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.
PROPRIETARY & CONFIDENTIAL:
D
11/29/2005
REVISED IDENTIFICATION CODE, SCHEMATIC REFERENCE, BUY PART NUMBER AND ITEM 40.
CHANGE DETAIL:
G4551-1
P.C. BOARD BLANK REFERENCE INFORMATION
BUY COMPLETE AS G4551-B
SEE ELECTRONIC FILE FOR INFORMATION
G 4551-1B4
PART NUMBER IDENTIFICATION CODE
BUY AS:
BUY PER E3867
TEST PER E4127-C
SCHEMATIC REFERENCE G4550-1B4
NOTES:
N.A. THIS DEVICE IS SUBJECT TO DAMAGE BY STATIC ELECTRICITY, SEE E2454 BEFORE
HANDLING.
N.B. PROGRAM X1 WITH ITEM 2.
N.C. KEEP FREE OF ENCAPSULATION MATERIAL.
N.D. SEAL COMPONENT BY APPLYING ITEM3 AS SHOWN SO THAT ENCAPSULATION MATERIAL
DOES NOT GET INSIDE COMPONENT.
N.E. KEEP FREE OF ENCAPSULATION MATERIAL (.50 DIA. MIN.) ON BOTH SIDES OF BOARD.
N.F. KEEP MOUNTING HOLES FREE OF ENCAPSULATION MATERIAL (5 PLACES).
N.G. COVER MOLEX WITH TAPE.
N.H. HAND TIGHT MOUNTING WASHER AND MOUNTING NUT TO POTENTIOMETER BUSHING.
N.J. WHEN ASSEMBLING DISPLAY, SPACE DISPLAY OFF THE BOARD .125+/- .010 MEASURED
FROM BOTTOM OF DISPLAY TO PC BOARD SURFACE.
N.K. SQUEEZE COMPONENTS TOGETHER BEFORE ENCAPSULATION.
A1
LED6
R3
S1
LED5
LED1
R2
LED2
DISP1
LED4
LED3
R1
G4551-1
CONTROL
PT185
TRI1
R183
C14
R170
R80
R179
C6
R68
R166
R10
C91
C51
R130
C101
D21
C46
R153
R8
R22
LED8
C80
R41
C3
R44
C1
MOV7
C95
R86
X6
TP3
R144
R129
R43
R155
R7
C4
R33
R193
R132
R160
D15
R63
R135
OCI5
Q2
C12
R60
L3
C94
R21
C63
R35
R14
R116
D3
L4
R74
TP1
R123
C64
R119
R69
Q14
C110
DZ3 DZ2
R65
C41
MOV5
R195
R198
R208
R54
R100
C11
D37
D24
D36
R47
C28
R156
MOV1
R59
C98
R40
Q15
R113
R51
R71
D39
C29
D8
C112
R148
D23
R89
R39
D5
C92
R115
R52
OCI3
Q17
R161
C31
C19
C59
R101
C17
TP6
D1
C26
C107
C16
R92
C57
TP5
C54
R108
R84
R177
C77
R125
R118
C9
R189
R77
R18
D20
C48
Q6
R12
R174
J1
DZ7
R17
R19
D19
R93
R140
R202
D40
X5
R142
R204
R147
R24
R168
C88
C78
C62
R6
D31
R201
D28
T1
R215
C105
R184
C23
D10
TRI3
L1
R99
R16
C81
R42
D11
R150
X10
R58
R192
R36
R62
C72
X7
X12
R141
R88
R111
R199
C42
C21
R154
R91R104
L2
R49
R188
MOV3
C5
C70
R81
LED7
C35
C60
Q9
R83
D4
R182
C27
D18
R46
R175
T2
C30
R159
Q5
R76
D25
R105
J4
R64
Q1
R15
R212
MOV4
Q8
R209
C89
MOV2
D29
Q4
C73
D9
R211
D17
R139
C113
R103
R102
TP4
C79
R164
R146
R26
R11
R205
C82
DZ6
D38
R112
R9
R61
R173
X14
C85
R23
R136
Q12
R98
R13
J6
Q18
R178
R149
C13
R79
R186
R176
R138
OCI1
R56
C65
D13
C47
J2
R210
R162
D26
R37
R171
R25
R191
J3
C83
D14
C86
D41
X8
R158
D30
R107
R87
LED9
R167
C20
R55
Q10
R32
OCI4
R216
DZ10
R157
DZ8
TP7
R78
J5
C49
R172
C69
D2
R75
OCI2
R206
D27
C75
R85
C104
C32
X4
R5
C61
R95
C52
R207
C90
C66
Q7
C97
C93
D6
C18
R90
R4
X11
R48
TRI2
R126
C15
C108
C25
R165
R50
C40
C106
C58
R70
R28
C8
R29
C38
C39
D34
C22
R27
D35
C76
R53
R45
R163
C45
R145
C74
R200
C87
R151
Q11
C37
C96
C33
DZ5
C100
C56
C10
R34
TRI4
R38
R110
R194
D12
R196
L5
DZ1
C102
R20
C24
R67
R128
C44
C84
R66
R94
R120
R82
R190
C2
R169
R117
R185
R131
Q16
D32
X9
D33
Q13
R30
C111
R124
R72
X13
D22
R213
R122
C36
R97
R121
DZ9
X2
C7
MOV8
C68
R180
R127
X1
R114
C53
R187
C71
R152
R73
R109
R181
C50
R203
C103
R214
C43
R197
C99
R106
D7
X3
R143
C67
R133
C34
Q3
MOV6
R137
DZ4
C109
R31
R96
D16
TP2
R57
C55
R134
ITEM PART NO. DESCRIPTION
1G4551-B PRECISION TIG 185 CONTROL PCB BLANK
2S25864-4 PSOC SOFTWARE
3E2861 SEALANT
ITEM REFERENCES QTY PART NUMBER DESCRIPTION
4A11M17789-4 ENCODER,INCREMENTAL,2-BIT,PEC12
5C1,C3,C29,C39,C41-
C43,C58,C60,C78,C84,
C89-C92,C94-C95,C103-
C104,C109-C110
21 S25020-2SMT CAPACITOR,SMD,CERAMIC,0.022MF,50V,10%,X7R,S0805
6C2,C10,C35,C111 4 S25020-9SMT CAPACITOR,SMD,CERAMIC,47pF,50V,5%,COG,S0805
7C4,C23,C38 3 S25024-2SMT CAPACITOR,SMD,TANTALUM,1.0MF,35V,10%,S3528
8C5,C20,C45 3 S25020-12SMT CAPACITOR,SMD,CERAMIC,100pF,100V,5%,COG,S0805
9C6-C7,C9,C12,C17-
C18,C24,C30-
C32,C34,C44,C53,C59
14 S25020-10SMT CAPACITOR,SMD,CERAMIC,4700pF,50V,10%,XR7,S0805
10 C8,C13,C25-C26 4 S20500-17 CAPACITOR,PPMF,0.1MF,630V,5%,BOX
11 C11,C14,C19,C21-
C22,C33,C48,C50-
C52,C55-
C56,C62,C64,C66,C68,
C74-C76,C79-
C83,C85,C93,C98,C100
,C105,C107-C108,C112
32 S25020-3SMT CAPACITOR,SMD,CERAMIC,0.1MF,50V,10%,X7R,S0805
12 C15,C63 2 S25020-4SMT CAPACITOR,SMD,CERAMIC,820pF,50V,5%,COG,S0805
13 C16,C40,C113 3 S25020-14SMT CAPACITOR,SMD,CERAMIC,330pF,100V,5%,COG,S0805
14 C27,C36-C37 3 S25020-7SMT CAPACITOR,SMD,CERAMIC,0.22MF,50V,20%,X7R,S1812
15 C281S25020-24SMT CAPACITOR,SMD,CERAMIC,1.0MF,25V,10% ,X7R,S1206
16 C46,C49 2 S13490-199 CAPACITOR,ALEL,220,25V,20%,LOW-ESR
17 C471S13490-179 CAPACITOR,ALEL,1000,35V,20%
18 C54,C69-
C70,C73,C86,C96,C99,
C101,C106
9T11577-52 CAPACITOR,CD,.0047/.005,1400V,20%
19 C57,C61,C65 3 S13490-197 CAPACITOR,ALEL,82,35V,20%,LOW-ESR
20 C67,C77 2 S25020-5SMT CAPACITOR,SMD,CERAMIC,2700pF,50V,5%,X7R,S0805
21 C71-C72,C87-C88,C102 5 T11577-58 CAPACITOR,CD,.0047,3000V,20%
22 C971S13490-181 CAP,ALEL,22,63V,20%
23 DISP1 1 S17395-11 LED,DISPLAY,7-SEGMENT,CC,3-DIGIT
24 DZ1,DZ8,DZ10 3 S25046-4SMT ZENER DIODE,SMD,0.5W,12V,5%,SOD-123
25 DZ2-DZ32S25046-3SMT ZENER DIODE,SMD,0.5W,18V, 5%,SOD123
26 DZ41S25046-1SMT ZENER DIODE,SMD,0.5W,5.1V, 5%,SOD123
27 DZ5-DZ62S25045-1SMT ZENER_DIODE,SMD,225mW,12V,5%,SOT-23
28 DZ7,DZ92S25044-3SMT ZENER DIODE,SMD,3W,12V,5%, SMB
29 D1-D3,D5,D7-D8,D21-
D22
8S25040-1SMT DIODE,SMD,1A,400V,FAST RECOVERY,DO-214BA
30 D4,D6,D16,D18-
D20,D28,D31-
D32,D35,D40-D41
12 S25040-5SMT DIODE,SMD,DUAL,0.200A,70V,UFR
31 D9-D15,D17,D23,D29-
D30,D33-D34,D36-D39
17 S25040-2SMT DIODE,SMD,1A,400V,DO-214BA/AC
32 D24-D274S25040-10SMT DIODE,SMD,3A,400V,D0-214AB
33 J1 1S24020-2G CONNECTOR,MOLEX,MINI,PCB,2-PIN,GOLD
34 J2 1S24020-8 CONNECTOR,MOLEX,MINI,PCB,8-PIN,TIN
35 J3 1S24020-12 CONNECTOR,MOLEX,MINI,PCB,12-PIN,TIN
36 J4 1S24020-4 CONNECTOR,MOLEX,MINI,PCB,4-PIN,TIN
37 J5 1S24020-6 CONNECTOR,MOLEX,MINI,PCB,6-PIN,TIN
38 J6 1S18248-4 CONNECTOR,MOLEX,MINI,PCB,4-PIN
39 LED1 1T13657-2 LED,T-1,3/4,RED,HLMP-3003
40 LED2,LED62T13657-14 LED,T-1,3/4,AMBER,HIGH-INTENSITY
41 LED3-LED53T13657-3 LED,T-1,3/4,GREEN,HLMP-3502
FOR ITEMS BELOW, REFER TO ELECTRONIC COMPONENTS DATABASE FOR CURRENT SPECIFICATIONS
REQ
1
1
AS NEEDED
OPPOSITE COMPONENT SIDE
42 LED7-LED93S25080-2SMT LED,SMD,GREEN,CLEAR,S1206
43 L1-L55T12218-9 CHOKE,RF,390UH,5%, 225MA,CONFORMAL
44 MOV1 1T13640-16 MOV,150VRMS,80J,20MM
45 MOV2-MOV5 4 T13640-25 MOV,130VRMS,90J,20MM
46 MOV6-MOV8 3 T13640-18 MOV,320VRMS,150J,20MM
47 OCI1 1 S15000-34SMT IC,SMD,OPTOCOUPLER,HMA124
48 OCI2-OCI5 4 S15000-16 OPTOCOUPLER,TRIAC,DRIVER,ZVC,3083
49 Q1,Q6 2 S25051-11SMT TRANSISTOR,SMD,NMF,DPAK,TO-252,48A,100V(SS)
50 Q2-Q3,Q5,Q7,Q9-
Q10,Q12-Q13,Q15-Q18
12 S25050-1SMT TRANSISTOR,SMD,NPN,0.5A,40V,SOT-23,MMBT4401LT1
51 Q4,Q8,Q11,Q14 4 S25050-2SMT TRANSISTOR,SMS,PNP,SOT23,0.5A, 40V,MMBT4403LT1
52 R1-R33T10812-116 POT,SINGLE-TURN,0.25W,10K,10%
91 R124-
R125,R127,R171,R181,
R189
6S25003-2000SMT RESISTOR,SMD,1W,200OHMS,1%
92 R126,R138 2 S25001-1213SMT RESISTOR,SMD,121K,1/4W,1206,1%,TR
93 R129 1S25000-2001SMT RESISTOR,SMD,METAL FILM,1/10W,2.00K,1%,S0805
94 R134 1S25000-6813SMT RESISTOR,SMD,METAL FILM,1/10W,681K,1%,S0805
95 R140 1S25000-3323SMT RESISTOR,SMD,METAL FILM,1/10W,332K,1%,S0805
96 R144,R146,R148,R150,
R186,R190,R192-R193
8S25001-2670SMT RESISTOR,SMD,267OHMS,1/4W,1206,1%,TR
97 R151-R152,R155-
R156,R158-R159,R163-
R164,R168-R169,R175-
R176
12 S25001-1821SMT RESISTOR,SMD,1.82K,1/4W,1206,1%,TR
98 R161 1S25001-7500SMT RESISTOR,SMD,750OHMS,1/4W,1206,1%,TR
99 R172-R174,R178 4 S25001-1211SMT RESISTOR,SMD,1.21K,1/4W,1206,1%,TR
100 R183 1 S25000-1502SMT RESISTOR,SMD,METAL FILM,1/10W,15.0K,1%,S0805
101R201 1 S25001-2211SMT RESISTOR,SMD,2.21K,1/4W,1206,1%,TR
102S11T13381-16 SWITCH,PUSHBUTTON,SPST,GREEN,W/BLACK EXTENDER
103 TP1-TP7 7TESTPT_FUNTIONAL FUNCTIONAL TEST POINT
104TRI1,TRI3 2 S18395-27 TRIAC,T220,8A,800V,WITH S18104-3HS
105TRI2,TRI4 2 S15161-27 TRIAC,T220,8A,800V
106T1-T2 2 T12737-2 TRANSFORMER,PULSE,3-WINDING,1:1:1
107X11S25073-3SMT IC,SMD,CMOS,PSOC,8-BIT,CY8C26643,TQFP44(SS)
108X21S15128-27SMT IC,OP-AMP,SINGLE,PRECISION,LT1097S8
109X3-X4,X14 3 S15128-28SMT IC,OP-AMP,SMT,QUAD,HIGH-PERF,33074ADT
110X51S18395-8 REGULATOR,HEAT-SINKASBLY,S15128-6,S18104-3
111 X6 1 S15128-10SMT IC,SMD,VOLTAGE REF,ADJ, PRECISION,431I,SOIC-8
112X71M15102-4SMT IC,ARRAY,DRIVER,PERIPHERAL,NPN,DARLINGTON
113 X8 1 S15128-5SMT IC,VOLT REG,SMD,FIXED,3-T,(+),1A,5V
114 X9 1 S25072-2SMT IC,SMD,ACT,BUFFER,OCTAL,3-STATE,TSSOP-20(SS)
115X10 1 S15018-21SMT IC,SMD,CMOS,DRIVER,MOSFET,4451, SOIC-8(SS)
116X11 1 S17900-24SMT IC,SMD,CMOS,GATE,NAND,2-INPUT,QUAD,SCHM(SS)
117X12 1 S25065-3SMT IC,SMD,CMOS,INVERTER,SCHMITT,HEX,VHC14(SS)
118X13 1 S15018-11SMT IC,SMD,CMOS,SWITCH,ANALOG,QUAD,201(SS)
N.A.
N.A.,N.B.
N.C.
N.A.
COMPONENT SIDE
0
.21
8.81
9.00
5.01
0
.23
5.83
6.00
5.13
N.C., N.D.
N.C.
N.C.,N.D.
N.C.
N.F.
N.E.
N.C., N.D., N.H. (3 PLACES)
N.C.
1
N.B.
CAPACITORS = MFD / VOLTS
RESISTORS = OHMS
ENCAPSULATE WITH HUMISEAL (2 COATS)
1A27LU PER E1844 OR WITH EQUIVALENT AS
APPROVED BY LINCOLN ELECTRIC CO.
N.J.
N.K.
N.K.
N.K.
N.K.
N.K.
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
N.G.
53 R4,R49-R50,R68-
R69,R72,R107,R122,R1
32,R162,R184
11 S25000-1002SMT RESISTOR,SMD,METAL FILM,1/10W,10.0K,1%,S0805
54 R5,R16-R17,R30-
R32,R51,R60-
R61,R92,R194-
R195,R208,R212,R215
15 S25000-1001SMT RESISTOR,SMD,METAL FILM,1/10W,1.00K,1%,S0805
55 R6 1S25000-1500SMT RESISTOR,SMD,METAL FILM,1/10W,150OHMS,1%,S0805
56 R7,R9,R111-
R113,R135,R143,R145,
R147,R149,R191,R196-
R198,R200,R202
16 S25001-1001SMT RESISTOR,SMD,1K,1/4W,1206,1%,TR
57 R8,R34,R203 3 S25000-6812SMT RESISTOR,SMD,METAL FILM,1/10W,68.1K,1%,S0805
58 R10-R11,R52-R53,R90-
R91,R103-R104
8S25004-1R00SMT RESISTOR,SMD,1W,1.00OHMS,1%
59 R12-R15,R26-R29,R42-
R45,R55-R58
16 S25003-1210SMT RESISTOR,SMD,1W,121OHMS,1%
60 R18 1 S25000-5622SMT RESISTOR,SMD,METAL FILM,1/10W,56.2K,1%,S0805
61 R19,R64,R157,R160,R1
65,R170
6S25001-47R5SMT RESISTOR,SMD,47.5OHMS,1/4W,1206,1%,TR
62 R20,R36,R41,R54 4 S25003-15R0SMT RESISTOR,SMD,1W,15.0OHMS,1%
63 R21 1 S25000-7681SMT RESISTOR,SMD,METAL FILM,1/10W,7.68K,1%,S0805
64 R22 1 S25000-4752SMT RESISTOR,SMD,METAL FILM,1/10W,47.5K,1%,S0805
65 R23,R79 2 S25000-2213SMT RESISTOR,SMD,METAL FILM,1/10W,221K,1%,S0805
66 R24 1 S25001-2210SMT RESISTOR,SMD,221OHMS,1/4W,1206,1%,TR
67 R25,R752S25006-10R0SMT RESISTOR,SMD,METAL_FILM,1/2W,10OHMS,1%,S2010
68 R33,R38 2 S25008-1002SMT RESISTOR,SMD,PREC,MF,1/10W,10.0K,0.5%,S0805
69 R35,R84,R108-
R109,R139,R166
6S25001-1000SMT RESISTOR,SMD,100OHMS,1/4W,1206,1%,TR
70 R37,R85,R106 3 S25000-3322SMT RESISTOR,SMD,METAL FILM,1/10W,33.2K,1%,S0805
71 R39,R81-
R82,R98,R128,R131,R1
67,R177,R182,R185,R1
87-R188,R210-R211
14 S25000-4751SMT RESISTOR,SMD,METAL FILM,1/10W,4.75K,1%,S0805
72 R40,R46-R47,R73-
R74,R76-R77,R86,R96-
R97,R141-R142,R179-
R180
14 S25001-4751SMT RESISTOR,SMD,4.75K,1/4W,1206,1%,TR
73 R48,R199,R209,R213-
R214
5S25000-2210SMT RESISTOR,SMD,METAL FILM,1/10W,221OHMS,1%,S0805
74 R59,R136 2 S25000-4750SMT RESISTOR,SMD,METAL FILM,1/10W,475OHMS,1%,S0805
75 R621S25000-1000SMT RESISTOR,SMD,METAL FILM,1/10W,100OHMS,1%,S0805
76 R63,R120 2 S25000-8251SMT RESISTOR,SMD,METAL FILM,1/10W,8.25K,1%,S0805
77 R65-R66,R94-
R95,R130,R137
6S25008-4751SMT RESISTOR,SMD,PREC,MF,1/10W,4.75K,0.5%,S0805
78 R67 1 S25000-1003SMT RESISTOR,SMD,METAL FILM,1/10W,100K,1%,S0805
79 R70,R117,R119,R121,R
204
5S25000-3321SMT RESISTOR,SMD,METAL FILM,1/10W,3.32K,1%,S0805
80 R71 1 S25000-1004SMT RESISTOR,SMD,METAL FILM,1/10W,1.00M,1%,S0805
81 R78 1 S25001-1002SMT RESISTOR,SMD,10K,1/4W,1206,1%,TR
82 R80,R83 2 S25000-1212SMT RESISTOR,SMD,METAL FILM,1/10W,12.1K,1%,S0805
83 R87-R89,R99-
R102,R205-R207
10 S25000-47R5SMT RESISTOR,SMD,METAL FILM,1/10W,47.5OHMS,1%,S0805
84 R93 1 S25000-2671SMT RESISTOR,SMD,METAL FILM,1/10W,2.67K,1%,S0805
85 R105,R110 2 S25003-47R5SMT RESISTOR,SMD,1W,47.5OHMS,1%
86 R114,R216 2 S25000-6811SMT RESISTOR,SMD,METAL FILM,1/10W,6.81K,1%,S0805
87 R115 1S25000-2212SMT RESISTOR,SMD,METAL FILM,1/10W,22.1K,1%,S0805
88 R116,R153-R154 3 S25003-2002SMT RESISTOR,SMD,1W,20.0K,1%
89 R118 1S25001-4752SMT RESISTOR,SMD,47.5K,1/4W,1206,1%,TR
90 R123,R133 2 S25000-2211SMT RESISTOR,SMD,METAL FILM,1/10W,2.21K,1%,S0805
G-7
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