Table of Contents
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G-6
PC BOARD ASSEMBLY-CONTROL
G
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
R 3 8 , R 1 7 4
2
S 1 9 4 0 0 - 1 3 0 1
1 . 3 K 1 / 4 W
R 4 0 , R 9 9 , R 1 1 4 , R 1 7 1 , R 1 7 3
1 0
S 1 9 4 0 0 - 2 2 1 1
2 . 2 1 K 1 / 4 W
R 1 8 6 , R 1 8 8 , R 2 3 2 , R 2 3 3 , R 2 3 4
R 4 2
1
T 1 0 8 1 2 - 6 8
1 K 1 / 2 W T R I M M E R
R 4 4 , R 4 6
2
T 1 4 2 3 0 - 2 3
5 . 0 M E G R E S I S T O R
R 5 0
1
S 1 9 4 0 0 - 2 2 1 0
2 2 1 1 / 4 W
R 5 9 , R 8 2
2
S 1 9 4 0 0 - 3 0 1 0
3 0 1 1 / 4 W
R 6 0 , R 6 2 , R 6 6 , R 6 7 , R 6 9 , R 7 0
7
S 1 9 4 0 0 - 2 6 R 7
2 6 . 7 1 / 4 W
R 1 8 2
R 6 3 , R 8 8
2
S 1 9 4 0 0 - 1 2 1 1
1 . 2 1 K 1 / 4 W
R 6 4 , R 8 5
2
S 1 9 4 0 0 - 6 1 9 0
6 1 9 1 / 4 W
R 6 5 , R 8 4
2
S 1 9 4 0 0 - 2 4 3 1
2 . 4 3 K 1 / 4 W
R 7 7 , R 7 8
2
S 1 9 4 0 0 - 3 9 R 2
3 9 . 2 1 / 4 W
R 7 9 , R 8 0
2
S 1 9 4 0 0 - 7 5 R 0
7 5 1 / 4 W
R 1 0 3 , R 1 0 4 , R 1 1 1 , R 1 1 9 , R 1 4 1
2 4
S 1 9 4 0 0 - 1 0 0 0
1 0 0 1 / 4 W
R 1 5 0 , R 1 5 1 , R 2 0 0 , R 2 0 1 , R 2 0 2
R 2 0 3 , R 2 0 4 , R 2 0 5 , R 2 0 6 , R 2 0 7
R 2 1 6 , R 2 1 7 , R 2 1 8 , R 2 1 9 , R 2 2 0
R 2 2 1 , R 2 2 2 , R 2 2 3 , R 2 5 0
R 1 0 7 , R 1 4 8 , R 1 7 8
3
S 1 9 4 0 0 - 6 1 9 1
6 . 1 9 K 1 / 4 W
R 1 1 3 , R 1 8 9
2
S 1 9 4 0 0 - 5 6 2 1
5 . 6 2 K 1 / 4 W
R 1 1 7 , R 1 2 3
2
S 1 9 4 0 0 - 3 7 4 1
3 . 7 4 K 1 / 4 W
R 1 2 0 , R 1 2 1 , R 1 6 7 , R 1 7 7
4
S 1 9 4 0 0 - 1 3 7 2
1 3 . 7 K 1 / 4 W
R 1 2 2
1
S 1 9 4 0 0 - 6 8 1 1
6 . 8 1 K 1 / 4 W
R 1 2 8
1
S 1 9 4 0 0 - 7 5 0 0
7 5 0 1 / 4 W
R 1 3 7 , R 1 7 6
2
S 1 9 4 0 0 - 1 5 0 1
1 . 5 K 1 / 4 W
R 1 3 9 , R 1 4 0
2
S 1 9 4 0 0 - 3 3 2 2
3 3 . 2 K 1 / 4 W
R 1 4 6
1
T 1 4 6 4 8 - 9
2 . 5 K 5 W
R 1 5 2 , R 1 5 4
2
S 1 9 4 0 0 - 1 5 R 0
1 5 1 / 4 W
R 1 5 6 , R 1 5 8
2
T 1 2 3 0 0 - 8 6
. 0 5 / 3 W
R 1 7 0 , R 1 7 5
2
S 1 9 4 0 0 - 3 3 2 0
3 3 2 1 / 4 W
R 1 7 2
1
S 1 9 4 0 0 - 4 4 2 2
4 4 . 2 K 1 / 4 W
R 1 7 9
1
S 1 9 4 0 0 - 1 0 0 3
1 0 0 K 1 / 4 W
R 1 8 0
1
T 1 2 3 0 0 - 8 0
5 W AT T 0 . 5 O H M R E S I S T O R
R 1 8 1
1
S 1 9 4 0 0 - 1 5 0 3
1 5 0 K 1 / 4 W
R 1 8 7
1
S 1 9 4 0 0 - 5 1 1 1
5 . 1 1 K 1 / 4 W
S 1 , S 2
2
S 1 9 8 6 9 - 8
S P S T S L I D E S W I T C H PA C K A G E
T 1
1
S 2 0 3 7 5 - 1
T R A N S F O R M E R
T P 1
1
T 1 3 6 4 0 - 1 6
8 0 J
X 1
1
S 2 4 0 1 0 - 3
I . C . , C M O S , M C U ( S S )
X 2
1
S 2 4 0 1 1 - 5
I . C . , C M O S , M C U ( S S )
X 3
1
S 1 7 9 0 0 - 8
1 4 P I N I . C . ( S S )
X 4 , X 1 8
2
S 1 7 9 0 0 - 2 4
I C , 7 4 H C 1 3 2 , C M O S , G AT E , N A N D , 2 - I N , S T ( S S )
X 5 , X 1 0 , X 1 6
3
S 1 5 1 2 8 - 1 1
1 4 P I N Q U A D C O M PA R AT O R
X 6
1
S 1 5 1 2 8 - 4
I C , L M 2 2 4 , O P - A M P
X 8 , X 9
2
S 1 7 9 0 0 - 5
I C , 7 4 H C 3 7 3 , C M O S , L AT C H , 3 - S TAT E , O C T ( S S )
X 1 1
1
S 2 0 3 5 3 - 4
I C , C M O S , X C V R , E I A 4 8 5 ( S S )
X 1 2
1
S 1 5 1 2 8 - 2 0
A M P L I F I E R
X 2 1
1
S 1 5 1 2 8 - 1 0
I C , 4 3 1 , V O LTA G E R E F.
X 2 2
1
M 1 5 1 0 2 - 3
I C , S 8 0 5 4 H N , C M O S , U N D E R V O T- S E N S I N G ( S S )
X 2 4
1
M 1 5 1 0 4 - 8
I . C . , E E P R O M , ( S S )
X 2 5
1
M 1 5 1 0 5 - 7
I C , C M O S , M P U , A / D , 1 0 - B I T ( S S )
X 2 6 , X 2 7
2
S 1 5 0 1 8 - 1 6
H V G AT E D R I V E ( S S )
X 2 8
1
M 1 5 4 5 8 - 4
8 P I N I C
X 2 9
1
S 1 8 3 9 5 - 3
H E AT S I N K A S B LY
X 3 0 , X 3 1
2
S 1 7 9 0 0 - 2 6
I C , 7 4 H C 1 5 1 , C M O S , M U X , D ATA , 8 - I N P U T ( S S )
Y 1
1
S 1 6 6 6 5 - 5
8 . 0 M H Z
C 1 , C 2 , C 3 , C 4 , C 5 , C 6 , C 7 , C 1 8
1 4
S 1 6 6 6 8 - 5
. 0 2 2 / 5 0
C 2 6 , C 3 0 , C 3 1 , C 4 7 , C 5 1 , C 5 8
C 8 , C 9 , C 1 0 , C 1 1 , C 1 2 , C 1 3 , C 1 4
3 5
S 1 6 6 6 8 - 1 1
. 1 / 5 0
C 1 5 , C 1 6 , C 2 1 , C 2 3 , C 2 4 , C 2 5
C 2 8 , C 3 2 , C 3 4 , C 3 6 , C 3 7 , C 3 8
C 4 1 , C 4 2 , C 4 3 , C 4 6 , C 4 9 , C 5 3
C 6 3 , C 6 4 , C 6 5 , C 6 7 , C 6 9 , C 7 1
C 7 3 , C 8 1 , C 8 2 , C 1 0 1
C 1 9 , C 3 3 , C 1 0 0
3
S 1 3 4 9 0 - 2 5
4 . 7 / 3 5
C 2 0 , C 2 2
2
S 1 6 6 6 8 - 1
2 2 p F / 1 0 0
C 2 7 , C 4 0 , C 5 0 , C 5 4 , C 6 8
5
S 1 3 4 9 0 - 4 2
1 . 0 / 3 5
C 4 4 , C 4 5 , C 4 8 , C 5 2 , C 6 1 , C 6 2
6
S 1 6 6 6 8 - 8
3 3 0 p F / 1 0 0
C 5 6 , C 7 8
2
S 1 3 4 9 0 - 1 3 8
1 2 0 0 / 1 0 0
C 5 7
1
S 1 3 4 9 0 - 3 9
1 8 / 1 5
C 5 9
1
S 1 3 4 9 0 - 1 9
1 . 8 / 2 0
C 6 0
1
S 1 3 4 9 0 - 4
. 0 2 2 / 2 0 0
C 6 6
1
S 1 3 4 9 0 - 9 4
. 3 3 / 2 0 0
C 7 2
1
S 1 6 6 6 8 - 1 0
4 7 0 0 p F / 5 0
C 7 5 , C 7 6 , C 7 7
3
S 1 6 6 6 8 - 4
2 7 0 0 p F / 5 0
C 7 9
1
S 1 3 4 9 0 - 7 3
2 0 / 5 0
C 8 0
1
S 1 3 4 9 0 - 1 0 7
5 6 0 0 / 3 5 V
D 1 , D 2 , D 3 , D 4 , D 5 , D 6 , D 7 , D 8 , D 9
3 1
T 1 2 1 9 9 - 1
1 N 4 0 0 4
D 1 0 , D 1 1 , D 1 2 , D 1 3 , D 1 4 , D 1 5
D 1 6 , D 1 9 , D 2 5 , D 2 7 , D 2 8 , D 2 9
D 3 0 , D 3 1 , D 3 4 , D 4 5 , D 4 6 , D 4 9
D 5 0 , D 5 1 , D 5 2 , D 5 3
D 2 0 , D 4 2 , D 4 7
3
T 1 2 7 0 5 - 4 7
4 A / 2 0 0 V
D 2 1 , D 2 2 , D 2 3 , D 2 4 , D 2 6 , D 3 5
1 2
T 1 2 7 0 5 - 3 4
1 N 4 9 3 6
D 3 6 , D 3 8 , D 3 9 , D 4 0 , D 4 1 , D 4 8
D Z 1 , D Z 2
2
T 1 2 7 0 2 - 4 0
1 N 4 7 3 5
D Z 3 , D Z 4 , D Z 5 , D Z 6
4
T 1 2 7 0 2 - 3 8
1 N 4 7 5 1
D Z 8 , D Z 9
2
T 1 2 7 0 2 - 1 1
1 N 4 7 4 5 A
J 1 , J 4
2
S 1 8 2 4 8 - 4
H E A D E R
J 2
1
S 1 8 2 4 8 - 8
H E A D E R
J 3
1
S 1 8 2 4 8 - 6
H E A D E R
J 5
1
S 2 1 1 3 4 - 1 4
M O L E X C O N N E C T O R
J 6
1
S 2 1 1 3 4 - 1 0
M O L E X C O N N E C T O R
J 7
1
S 1 8 2 4 8 - 1 2
H E A D E R
J 8
1
S 1 8 2 4 8 - 1 0
H E A D E R
L 1 , L 2 , L 3
3
T 1 2 2 1 8 - 7
3 3 0 u H
L E D 1
1
T 1 3 6 5 7 - 2
R E D L E D
L E D 2
1
T 1 3 6 5 7 - 3
G R E E N L E D
O C I 1 , O C I 2 , O C I 3 , O C I 4 , O C I 5
8
S 1 5 0 0 0 - 2 5
O P T O C O U P L E R
O C I 6 , O C I 7 , O C I 8
O C I 9 , O C I 1 0
2
S 1 5 0 0 0 - 2 0
P H O T O F E T
Q 1 , Q 3 , Q 5
3
T 1 2 7 0 4 - 6 8
2 N 4 4 0 1
Q 4
1
T 1 2 7 0 4 - 5 4
N - C H A N N E L F E T ( S S )
Q 7
1
T 1 2 7 0 4 - 6 9
2 N 4 4 0 3
Q 1 0 , Q 1 1
2
S 2 0 1 0 6 - 1
H E X F E T W / H . S . A S B LY ( S S )
Q 1 2 , Q 1 3
2
S 2 0 1 0 6 - 3
T R A N S I S T O R , I G + D , T 2 4 7 , 6 0 0 V
Q 1 4
1
S 1 8 3 9 5 - 5
H . S . A S B LY ( S S )
R 1 , R 2 , R 3 , R 4 , R 5 , R 8 , R 4 7 , R 4 8
8
S 1 9 4 0 0 - 2 6 7 0
2 6 7 1 / 4 W
R 6
1
S 1 9 4 0 0 - 4 7 5 2
4 7 . 5 K 1 / 4 W
R 7 , R 3 9 , R 7 5 , R 7 6 , R 9 0 , R 1 2 9
8
S 1 9 4 0 0 - 1 0 0 1
1 K 1 / 4 W
R 1 3 4 , R 1 3 8
R 9 , R 1 0
2
S 1 9 4 0 0 - 1 0 0 4
1 M 1 / 4 W
R 1 1 , R 5 1 , R 5 6 , R 6 8 , R 8 1 , R 8 3
9
S 1 9 4 0 0 - 1 5 0 0
1 5 0 1 / 4 W
R 8 6 , R 1 1 0 , R 1 5 7
R 1 2 , R 1 3 , R 1 4 , R 1 5 , R 1 2 4
5
S 1 9 4 0 0 - 2 6 7 1
2 . 6 7 K 1 / 4 W
R 1 6 , R 1 9 , R 2 1 , R 4 9 , R 5 4 , R 5 8
2 2
S 1 9 4 0 0 - 4 7 5 1
4 . 7 5 K
R 6 1 , R 7 3 , R 7 4 , R 8 7 , R 9 8 , R 1 0 2
R 1 0 6 , R 1 1 2 , R 1 1 5 , R 1 3 0 , R 1 4 3
R 1 4 9 , R 1 5 5 , R 1 6 2 , R 2 3 6 , R 2 4 4
R 1 7 , R 4 5 , R 9 2 , R 9 6 , R 1 1 6 , R 1 6 0
7
S 1 9 4 0 0 - 3 3 2 1
3 . 3 2 K 1 / 4 W
R 1 6 9
R 1 8 , R 2 0 , R 2 4 , R 2 5
4
S 1 9 4 0 0 - 3 9 2 2
3 9 . 2 K 1 / 4 W
R 2 2 , R 2 3 , R 1 0 5 , R 1 2 5 , R 1 4 2
5
S 1 9 4 0 0 - 2 2 1 2
2 2 . 1 K 1 / 4 W
R 2 6 , R 2 7 , R 2 8 , R 2 9 , R 1 0 8 , R 1 0 9
8
S 1 9 4 0 0 - 4 7 5 0
4 7 5 1 / 4 W
R 1 4 7 , R 1 5 3
R 3 0 , R 5 5 , R 9 3 , R 1 2 7 , R 1 5 9 , R 1 6 1
6
S 1 9 4 0 0 - 3 9 2 1
3 . 9 2 K 1 / 4 W
R 3 1 , R 3 2 , R 3 7 , R 4 1 , R 4 3 , R 5 2
3 6
S 1 9 4 0 0 - 1 0 0 2
1 0 K 1 / 4 W
R 5 3 , R 7 1 , R 7 2 , R 1 0 0 , R 1 1 8 , R 1 2 6
R 1 4 4 , R 2 0 8 , R 2 0 9 , R 2 1 0 , R 2 1 1
R 2 1 2 , R 2 1 3 , R 2 1 4 , R 2 1 5 , R 2 2 4
R 2 2 5 , R 2 2 6 , R 2 2 7 , R 2 2 8 , R 2 2 9
R 2 3 0 , R 2 3 1 , R 2 3 5 , R 2 4 3 , R 2 4 5
R 2 4 6 , R 2 4 7 , R 2 4 8 , R 2 4 9
R 3 3 , R 5 7
2
S 1 9 4 0 0 - 6 8 1 0
6 8 1 1 / 4 W
R 3 4
1
T 1 4 6 4 8 - 2 3
2 0 5 W
EQUIP.
THE LINCOLN ELECTRIC CO.
TYPE
CLEVELAND, OHIO U.S.A.
SUBJECT
SCALE
SHT.
DR
DATE
CHK
REF.
SUP'S'D'G
NO.
G-6
G
LN-10
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