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
L 8 0 3 3 - 4
C
Item
Identification
TP1,TP2
15J
R11,R19,R26,R27
10K 1/4W
R5,R6,R10,R22
100K 1/4W
R4
1.5K 1/4W
R14,R41
15K 1/4W
R9
1150K 1/4W
R21
2.21K 1/4W
R3
243 1/4W
R7,R8,R24
267 1/4W
R2
2.67K 1/4W
R18
26.7K 1/4W
R20
267K 1/4W
R13,R15,R16,R17
33.2K 1/4W
R23
4.75K
R12
475K 1/4W
R25
5.11K 1/4W
X4
LM224 OP-AMP
J14
HEADER
Q40
2N4401
R42,R43
100 1/4W
DZ4,DZ5
1N4742A
R28,R29
10 1/4W
D14
1N4936
P O W E R B O A R D
B
D
A
Item
R44
NOTE: Individual parts listed are not available from Lincoln Electric.