General information, Electrical diagrams, Idealarc dc400 – Lincoln Electric IDEALARC SVM 122-A User Manual
Page 115
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ELECTRICAL DIAGRAMS
IDEALARC DC400
Starting PC Board (M14520) Schematic
55A
400V
SCR2
1
3
2
38J
130V
TP1
D5
D4
D3
1N4007
D2
J6
4
4A
400V
SCR1
1.00K
R5
1.00K
R3
1.50K
R4
5W
2500
R1
SBS1
G
J6
2
10W
100
R6
2
1
160J
320V
TP2
50V
50
C1
J6
6
J6
1
D7
D6
1N4007
D1
5W
2500
R2
J6
3
19686
S
START
S
= COMMON CONNECTION
IDEALARC DC400
ELECTRICAL SYMBOLS PER E1537
19686
218
32
31
228
SCHEMATIC
CAPACITORS = MFD/VOLTS
GENERAL INFORMATION
DIODES = 1 AMP/400 VOLT (UNLESS OTHERWISE SPECIFIED)
OP AMPS = LM124 (UNLESS OTHERWISE SPECIFIED)
RESISTORS = OHMS,1/4 WATT (UNLESS OTHERWISE SPECIFIED)
216
215
J6
5
7.5-9.0V
MT2
MT1
11-17-95G
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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 provided 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.