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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-17
POWER WAVE 450
PC BOARD ASSEMBLY-SQUARE WAVE PROTECTION
16062-1
Ch’ge. Sht. No.
12-8-89B
11-30-90B
SQUAREWAVE TIG 300 & 350
PROTECTION P.C. BOARD ASSEMBLY
FV
DOUBLE
16062-1
DEC
9-8-89
L8088-1
THE LINCOLN ELECTRIC CO.
CLEVELAND, OHIO U.S.A.
EQUIP.
TYPE
SCALE
SUBJECT
DR
DATE CHK
REF.
SUP’S’D’G
SHT.
NO.
M
M
IDENTIFICATION
.0047/3000 V
.39 mH
HEADER
HEADER
T11577-58
T12218-9F
S18248-6
S18248-8
PART NO.
REQ’D
6
6
1
1
C1, C2, C3, C4, C5, C6
AICF
L1, L2, L3, L4, L5, L6
J22
J23
CAPACITORS = MFD/VOLTS
0
.20
.50
±.12
±.12
+.05
-.02
0
±.12
3.40
3.60
+.05
-.02
3.60
3.10
3.40
J22
J23
C2
C1
C3
C4
C5
C6
L6
L4
L5
L1
L2
L3
.20
.60
SQUARE WAVE
PROTECTION
M16062-1
B
ITEM
G-17
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