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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-11
PRO-CUT 80
PC BOARD ASSEMBLY - DISPLAY BOARD
10721-1
1-9-98M
L
J40
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
DZ1
C5
C1
C2
C3
C4
DISPLAY
L10721-1
LED2 LED8
LED9
LED5 LED6
LED7 LED4
LED3
LED1
Q1
Q4
Q2 Q3
0
0
4.30
4.00
1.10
1.00
.20
1.40
C1,C2,C3,C4
C5
DZ1
LED1
LED2,LED7
LED3,LED6
LED4
LED5
LED9
LED8
Q1,Q2,Q3,Q4
R1,R5,R9,R13
R2,R6,R10,R14
R3,R4,R7,R8,R11,R12
R15,R16
R17
R18,R19
R20
4
1
1
1
2
2
1
1
1
1
4
4
4
6
2
1
2
S16668-4
S13490-25
T12702-27
2700pF/50
4.7/35
1N4740
M18875-1 LIGHT BAR,LED,YELLOW
M18875-5 LIGHT BAR,LED,RED
M18875-2 LIGHT BAR,LED,RED
M18875-6 LIGHT BAR,LED,YELLOW
M18875-3 LIGHT BAR,LED,YELLOW
M18875-7 LIGHT BAR,LED,GREEN
M18875-4 LIGHT BAR,LED,GREEN
T12704-68 2N4401
S19400-3321 3.32K 1/4W
S19400-6811 6.81K 1/4W
S19400-1000 100 1/4W
S19400-75R0 75 1/4W
S19400-8250 825 1/4W
S19400-2671 2.67K 1/4W
PART No.ITEM QTY. IDENTIFICATION
1 S19400-2430 243 1/4W
1.65~.04
4.50~.04
G-11
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