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STRP
R7
R15
Q1
Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty.
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.
DZ3
R9
R8
R6
R47
D 6
D Z 8
C17
1
D 1
D 5
R54
R49
R18
C22
R17
R53
D 1
C5
C19
C4
Q5
R36
R37
D9
C18
C3
C6
C20
C7
D Z 1
D Z 2
R51
R16
R12
Q4
2
D1
R1
R11
R52
R31
R13
C15
C13
Q2
D 7
C14
R2
R14
R4
R5
R3
L11845-1
This information is pro-
RANGER 305D
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Table of Contents
Troubleshooting
