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G-5

ELECTRICAL DIAGRAMS

G-5

Starting PC Board (M14520) Layout

 

 

 

ITEM

PART NO.

REQ'D

 

IDENTIFICATION

 

 

 

 

 

 

 

 

 

C1

-72

1

 

50/50

 

 

 

 

 

 

 

D1, D2

-2

2

 

1N4007

 

D3, D4, D5, D6, D7

-1

5

 

1N4004

 

R1, R2

-9

2

 

5W/2500 OHM RESISTOR

 

R3, R5

 

2

 

1K 1/4W

 

R4

-1501

1

 

1.5K 1/4W

 

R6

-4

1

 

100 10W

 

SCR1

-19

1

 

4A, 400V SCR

 

SCR2

-1001

1

 

SCR HEAT SINK AS'BLY

 

-1

 

 

SBS1

-1

1

 

SILICON BILATERAL SWITCH

 

TP1

-12

1

 

38J

 

TP2

-18

1

 

160J

 

 

 

 

 

 

 

 

 

 

 

 

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 IDEALARC DC400 in danger to the Machine Operator or Technician. Improper PC board repairs could result in damage to the machine.

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Image 112
Lincoln Electric SVM 122-A service manual Starting PC Board M14520 Layout, TP2