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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-31
PRECISION TIG 275
®
®
PC BOARD ASSEMBLY - TIG OPTION P.C. BOARD - ABOVE CODE 11000 (G4761-1)
UNLESS OTHERWISE SPECIFIED:
CAPACITANCE = MFD/VOLTS
INDUCTANCE = HENRIES
RESISTANCE = OHMS
G4761-1
INDUSTRIAL TIG
ADVANCED CONTROL PC BOARD ASSEMBLY
1:1
G4040
Jbarto
T Nguyen
-
UNLESS OTHERWISE SPECIFIED TOLERANCE
MANUF ACTURING TOLERANC E
PER
E2056
ON 2 PLA CE DE CIMA LS IS ± .02
ON 3 PLACE DEC IMALS IS ± .002
ON AL L A NGLES IS ± .5 OF A DE GREE
WITH PUB LIS HE D STAN DA RDS.
MATER IAL T OLE RA NCE (" ") TO AG REE
t
DO NOT SCAL E THI S DR AWING
DRAWN BY:
DESIG N INF OR MATIO N
ENGI NEER:
APPR OVED:
REFERENCE:
EQUIPMENT TYPE:
SUBJECT:
SCA LE:
MATERIAL
DISPOSITION:
APPROVAL
DATE:
PROJECT
NUMBER:
NA
CRM38259
1
PAGE ___ OF ___
1
ENGINEERING CONTROLLED
M ANUFACTURER:
No
DOCUMENT
NUMBER:
DOCUMENT
REVISION:
THIS DOCUMEN T CON TAINS PROPRIETARY
INFORMATION O
WNED BY LINCOLN G LOBAL, INC. AND MA
Y NOT BE DUPLICATED, COM
MUNICATED
TO O THER PARTIES OR USED FOR AN
Y PURPOSE WITHOU
T THE EXPRESS WRIT
TEN PERMISSION OF LINCOLN GL
OBAL, INC.
PROPRIETARY & CONFIDENTIAL:
A
3/5/2007
RELEASED A.01 FROM "X"
CHANGE DETAIL:
SO
LI
D
ED
G
E
STRP
G47
61-1
NOTES:
N.A.
CAUTION:
THIS DEVICE IS SUBJECT TO DAMAGE BY STATIC ELECTRICITY. SEE E2454
BEFORE HANDLING.
N.B. PROGRAM
X14
WITH
ITEM 2
AND LABEL X14 WITH PART NUMBER OF
ITEM 2.
N.C. APPLY
ITEM 3
TO COMPONENT SIDE OF BOARD AS SHOWN.
N.D. DO NOT COAT WITH ENCAPSULATION MATERIAL.
N.E. KEEP MOUNTING HOLES FREE OF ENCAPSULATION MATERIAL. (5 PLACES)
N.F. KEEP TOP SURFACE OF TRIMMERS FREE OF ENCAPSULATION MATERIAL. (2 PLACES)
N.G. KEEP TOP SURFACE OF DIP SWITCH FREE OF ENCAPSULATION MATERIAL.
N.H. APPLY
ITEM 3
AROUND BASE OF J2 & J3 ON BACK SIDE OF BOARD. LIMIT HEIGHT TO
.125 +0/-.0625 INCHES.
N.J. APPLY
ITEM 3
TO CONNECTOR’S PLASTIC MOUNTING PINS.
{
N.A.
{
N.D.
1
8
2 3 4 5 6 7
PRECISION TIG
ADVANCED CONTROL
HOT START
ARC FORCE
G4761-1
O
N
D9
R116
C
5
R15
R144
R9
5
R1
1
R1
71
R5
2
R1
37
R3
1
R67
R8
D1
C
4
R16
C1
R2
1
R12
R1
67
R1
83
C
8
C9
R151
R1
0
D
Z1
C53
D13
R3
5
C50
R121
C
20
R1
32
R1
8
R4
7
Q2
D12
X6
R156
R60
C
14
D
Z5
R7
4
C37
R159
R9
4
R1
42
R157
R24
R1
24
D14
C63
R9
7
R1
15
R5
5
C
39
R3
0
R1
41
R176
R105
R1
22
R5
9
R4
R2
3
X1
2
R1
7
R8
6
X1
1
C
66
C28
C19
X1
X7
R146
C
15
R4
8
DZ4
C57
C29
R1
08
R1
31
X1
0
R1
06
J20
Q3
R3
6
C
31
R3
8
R2
2
R9
6
R87
R155
R1
82
R7
3
R1
11
C36
TP4
J1
R2
5
R89
C35
R5
0
C1
1
R1
29
C55
R5
4
D7
X1
6
R6
8
C
33
R3
R4
9
C
60
TP5
R158
R1
36
R1
43
R1
74
D2
R3
7
C56
C
43
R8
3
D
Z3
R145
C52
R7
7
R39
R148
R120
R118
R1
47
R1
66
Q8
R1
38
R2
0
R4
4
C38
C4
8
R1
X2
R4
5
R1
30
R3
2
LED1
R7
2
C
64
S1
R1
80
R2
6
R8
2
C54
R9
1
C34
TP2
C
17
R1
81
R14
C
3
R1
35
R102
C46
D3
R123
R8
4
R1
39
R7
6
D6
R88
R99
R1
09
C10
R3
4
R4
3
C
65
R9
0
R7
1
R1
78
R1
25
R1
01
R5
7
X1
4
R104
R7
5
R4
1
C
27
R9
2
R1
26
R5
8
R1
73
X9
R177
R119
R1
34
D5
D4
LED2
X1
5
R1
33
R6
1
R103
R1
69
R9
8
R1
28
R1
72
C
2
C49
Q7
C
18
R1
40
R150
C7
Q6
C30
R1
75
D8
C
12
R9
X1
3
R7
0
C51
R6
9
R2
R149
R2
8
C
58
C32
D11
R1
79
R152
R3
3
R6
5
R64
C
62
R66
R5
1
R117
C
26
X8
R153
R4
6
R5
R154
R1
27
R6
C
45
D10
R1
14
Q5
R107
R1
10
R1
3
TP1
C
6
O
CI
1
R7
R2
7
R1
12
R2
9
J21
R1
70
R85
R4
2
J2
J3
J1,J20,J21
J2, J3MOUNTED
ON BACK OF BOARD
0
0
1
N.E.
N.F.
N.G.
.20
3.30
ALL COMPONENTS AND MATERIALS USED IN THIS
ASSEMBLY ARE TO BE RoHS COMPLIANT PER E4253
REVISION CONTROL
G4761-1A0
PART NO. IDENTIFICATION
CODE
TEST PER
COAT WITH E1844 AND E3668
SCHEMATIC REFERENCE:
SEE ELECTRONIC FILE FOR ADDITIONAL INFORMATION.
E4298-AC
G4760-1A0
4 LAYER BOARD BLANK PANEL
.20
2.60
5.30
5.50
2.75
3.50
2
N.B.
MAK E DETAIL
MANUFACTURE PER E1911
BUY BLANK COMPLETE
(6 BOARDS PER PANEL)
N.H.
X
X
X X
XX
XX
XX
XX XX
X
X
X
X
X
X
X
X
X
X
N.J.
N.J.
N.C.
ITEM
QTY PART NUMBER DESCRIPTION
1
1
G4761-A
PC BOA RD BLANK
2
1
S26859-1
PS OC S OFTW ARE (X14)
3
AS REQ E2861
SE ALANT
REFERENCES
QTY PART NUMBER DESCRIPTION
C1, C2, C4, C5, C7, C10,
C12, C14, C15, C17, C18,
C19, C20, C26, C29, C30,
C31, C32, C33, C34, C38,
C39, C43, C45, C49, C50,
C51, C52, C53, C54, C55,
C56, C57, C62, C63, C65
36
S25020-3SM T
CA PACITOR,SM D,CERAM IC,0.1M F,50V,10%,X7R,S0805
C3, C8, C58, C64, C66
5
S25020-2SM T
CA PACITOR,SM D,CERAM IC,0.022M F,50V,10%,X7R,S0805
C6
1
S25020-5SM T
CA PACITOR,SM D,CERAM IC,2700pF,50V,5%,X7R,S 0805
C9, C27, C28, C46
4
S25020-27S M T
CA PACITOR,SM D,CER,0.1M F,50V,-20%+80%,Z5U,S0805
C11
1
S25020-9SM T
CA PACITOR,SM D,CERAM IC,47pF,50V,5%,COG,S 0805
C35, C36, C37, C48
4
S25020-24S M T
CA PACITOR,SM D,CERAM IC,1.0M F,25V,10% ,X7R,S1206
C60
1
S25020-14S M T
CA PACITOR,SM D,CERAM IC,330pF,100V,5%,COG,S0805
D1
1
S25040-2SM T
DIODE,SM D,1A,400V,DO-214BA/AC
D2, D3, D4, D5, D6, D7,
D8
7
S25049-4SM T
DIODE,SM D,S CHOTTKY ,DUAL,0.200A,30V,SOT-23
D9, D10, D11, D12, D13,
D14
6
S25040-5SM T
DIODE,SM D,DUAL,0.200A,70V ,UFR
DZ1, DZ5
2
S25046-1SM T
ZENE R DIODE,SM D,0.5W ,5.1V, 5%,SOD123
DZ3
1
S25046-4SM T
ZENE R DIODE,SM D,0.5W ,12V,5%,SOD-123
DZ4
1
S25046-3SM T
ZENE R DIODE,SM D,0.5W ,18V, 5%,SOD123
J1
1
S24020-12
CONNE CTOR,M OLE X,M INI,PCB,12-PIN,TIN
J2, J3
2
S21135-10
CONNE CTOR,M OLE X,M INI,BLIND,F,10-P IN
J20
1
S24020-2
CONNE CTOR,M OLE X,M INI,PCB,2-PIN,TIN
J21
1
S24020-4
CONNE CTOR,M OLE X,M INI,PCB,4-PIN,TIN
LED1, LED2
2
S25080-2SM T
LED,S M D,GRE EN,CLEA R,S1206
OCI1
1
S15000-34S M T
IC,SM D,OPTOCOUP LE R,HM A124
Q2, Q3, Q6, Q7, Q8
5
S25050-1SM T
TRANSISTOR,S M D,NPN,0.5A,40V ,SOT-23,M M BT4401LT1
Q5
1
S25051-4SM T
TRANSISTOR,S M D,NM F,SOT-23,0.115A ,60V,7002LT1(SS)
R1, R2, R3, R4, R5, R8,
R25
7
S25000-2211SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,2.21K,1%,S0805
R6, R10, R13, R14, R16,
R17, R18, R21, R26, R28,
R29, R32, R33, R48, R52,
R58, R59, R61, R65, R72,
R82, R84, R85, R89, R92,
R101, R102, R103, R104,
R116, R120, R123, R128,
R130, R135, R137, R138,
R139, R140, R141, R143,
R151, R152, R153, R154,
R155, R157,
48
S25000-1002SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,10.0K,1%,S0805
R7
1
S25058-1SM T
TRIM M E R,SM D,ST,1/4W ,10K,10%,LINEAR
R9, R148, R175
3
S25000-6810SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,681OHM S,1%,S0805
R11, R35, R36, R106,
R111, R124
6
S25000-3320SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,332OHM S,1%,S0805
R12, R45, R169, R170,
R171
5
S25000-1000SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,100OHM S,1%,S0805
R15
1
S25000-1372SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,13.7K,1%,S0805
R20
1
S25000-1501SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,1.50K,1%,S0805
R22, R142, R144
3
S25000-2212SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,22.1K,1%,S0805
R23, R136, R158
3
S25000-2002SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,20.0K,1%,S0805
R24, R44, R110, R178
4
S25000-1211SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,1.21K,1%,S0805
R27, R46
2
S25000-3323SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,332K,1%,S0805
R30, R31, R70
3
S25000-4752SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,47.5K,1%,S0805
R34, R37, R38, R50, R67,
R75, R76, R127, R131,
R132, R133, R181
12
S25000-5110SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,511OHM S,1%,S0805
R39, R60, R66, R87,
R105, R126, R166, R167,
R177
9
S25000-4751SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,4.75K,1%,S0805
R41, R172, R176, R182,
R183
5
S25000-47R5S M T RE SISTOR,S M D,M E TA L FILM ,1/10W ,47.5OHM S,1%,S0805
R42, R43, R47, R64, R68,
R71, R83, R88, R90, R91,
R107, R109, R112, R121,
R145, R146, R147, R174,
R179
19
S25000-1001SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,1.00K,1%,S0805
R49, R51, R77, R134,
R180
5
S25000-4750SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,475OHM S,1%,S0805
R54, R69
2
S25000-3321SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,3.32K,1%,S0805
R55, R125
2
S25000-1821SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,1.82K,1%,S0805
R57, R97
2
S25000-10R0S M T RE SISTOR,S M D,M E TA L FILM ,1/10W ,10.0OHM S,1%,S0805
R73, R74, R150
3
S25000-1003SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,100K,1%,S0805
R86
1
S25000-3162SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,31.6K,1%,S0805
R94, R118
2
S25000-7501SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,7.50K,1%,S0805
R95, R117
2
S25000-2671SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,2.67K,1%,S0805
R96
1
S25084-2SM T
THERM ISTOR,SM D,PTC,0.35./1.4OHM S ,2.0A
R98, R99
2
S25001-1210SM T RE SISTOR,S M D,121OHM S,1/4W ,1206,1%,TR
R108, R122
2
S25000-9091SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,9.09K,1%,S0805
R114, R115
2
S25000-2000SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,200OHM S,1%,S0805
R119, R129
2
S25000-1822SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,18.2K,1%,S0805
R149, R159
2
T10812-41
TRIM M E R,ST,1/2W ,10K, 10%,LINE AR
R156
1
S25000-1652SM T RE SISTOR,S M D,M E TA L FILM ,1/10W ,16.5K,1%,S0805
S1
1
S19869-8
SW ITCH,DIP,SPS T,8-CIRCUITS????S ET_S W ITCH_POS ITIONS????
X1
1
S15128-11S M T
IC,SM D,COM PARATOR,QUAD,2901D
X2, X6, X11
3
S15128-28S M T
IC,OP-AM P,SM T,QUAD,HIGH-PERF,33074ADT
X7
1
S25067-1SM T
IC,BIPOLAR,TIM E R,SOIC-14
X8, X13
2
S15128-4SM T
OP-AM P,SM D,QUAD, GEN-P URPOSE,224D
X9, X12
2
S15018-6SM T
IC,SM D,CM OS,SW ITCH,ANALOG,QUAD, 4066BD(SS)
X10
1
S25057-2SM T
POT,SM D,DIGITAL,10K ,1-CHNL,SOIC-8
X14
1
S25073-12S M T
IC,SM D,CM OS,PS OC,8-BIT,CY8C27643,TFN49(S S)
X15, X16
2
S25065-3SM T
IC,SM D,CM OS,INVE RTER,SCHM ITT,HEX,VHC14(SS )
REFER TO ELECTRONIC COM P ONE NT DATABA SE FOR SPECIFICA TIONS ON ITE M S LISTED BELOW
G-31
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