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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-23
POWER WAVE 455/R
PC BOARD ASSEMBLY-VOLTAGE SENSE
0
1.55
1.75
0
±.04
2.00
.20
1.00
1.80
.20
±.04
COMMON DIGITAL CONTROLS
VOLTAGE SENSE SELECT P.C. BD AS'BLY
M19540-1
1-3-2000A
ITEM REQD
PART NO.
IDENTIFICATION
INDUCTANCE = HENRYS
RESISTORS = OHMS
CAPACITORS = MFD/VOLTS
.
.
D1 1 T12199-1 1N4004
J1 1 S24020-6 HEADER
J2 1 S24020-2G HEADER
L1 1 T12218-7 330uH
OCI1,OCI2 2 S15000-20 PHOTO FET
R1,R2 2 S19400-4750 475 1/4W
R3 1 S18380-1 THERMISTOR,PTC
TP1,TP2 2 T13640-18 160J
D1
L1
OCI1 OCI2
R1
R2
R3
TP1
TP2
J1 J2
A
RA
M19540-1M19540-1
A
M19540-1
VOLTAGE SENSE SELECT
G-23
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