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G-5
ELECTRICAL DIAGRAMS
LN-9
TRIGGER BOARD (M13861) SCHEMATIC
1A
600V
D5
1A
600V
D6
OCI1
4
3
OCI1
1
2
562
R5
1A
600V
D2
1A
600V
D3
332
R1
1A
600V
D4
1A
600V
D1
50
25V
C1
1W
20V
DZ1
1W
75V
DZ2
332
R3
562
R4
562
R6
562
R2
500
S
530
622
20031
24 VAC
SWITCH
621
TRIGGER
620
623
FILE: S20031_3EB
LABELS
ELECTRICAL SYMBOLS PER E1537
A PRINTED
N.A.
SINCE COMPONENTS OR CIRCUITRY ON
GENERAL INFORMATION
SUPPLY
FRAME CONNECTION
ON 2 PLACE DECIMALS IS + .O2
Ch'ge.Sht.No.
CLEVELAND, OHIO U.S.A.
WITH PUBLISHED STANDARDS
POWER SUPPLY SOURCE POINT
BOARD.
MAY CHANGE
CHK.
UNLESS OTHERWISE SPECIFIED TOLERANCE
MATERIAL TOLERANCE ("t") TO AGREE
ON ALL ANGLES IS + .5 OF A DEGREE
OF A COMPLETE
THIS DIAGRAM MAY NOT
CIRCUIT BOARD
WITHOUT AFFECTING
THE INTERCHANGEABILITY
SUBJECT
TYPE
ON 3 PLACE DECIMALS IS + .OO2
SHT.
ON HOLES SIZES PER E-2056
EQUIP.
NO.
DR.
DATE
THE LINCOLN ELECTRIC CO.
OR CIRCUITRY OF
SUP'S'D'G.
JRH
VOLTAGE NET
SHOW THE EXACT COMPONENTS
S
MFD
RESISTORS = Ohms (
CODE NUMBER.
EARTH GROUND CONNECTION
UNLESS OTHERWISE SPECIFIED)
(UNLESS OTHERWISE SPECIFIED)
.022/50V
COMMON CONNECTION
1A, 400V
1/4W
SCHEMATIC
(
SCALE
DIODES =
UNLESS OTHERWISE SPECIFIED)
CAPACITORS =
12-20-90
LN-9 TRIGGER P.C. BOARD
20031
NONE
CONTROLS HAVING A COMMON
NOTES :
11-1-91A
2-25-94C
5-20-94A
2-10-95D
G-5
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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 provided 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.