Lincoln Electric SVM 122-A service manual General Information, Snubber PC Board M15370 Schematic

Models: SVM 122-A

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G-9

ELECTRICAL DIAGRAMS

G-9

Snubber PC Board (M15370) Schematic

19687

S

 

 

 

 

GENERAL INFORMATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ELECTRICAL SYMBOLS PER E1537

 

 

 

 

 

 

 

 

 

 

CAPACITORS

=

MFD/VOLTS

 

 

 

 

 

 

 

 

 

 

 

RESISTORS

= OHMS,1/4 WATT (UNLESS OTHERWISE SPECIFIED)

 

 

 

 

 

 

 

 

DIODES

= 1 AMP/400 VOLT (UNLESS OTHERWISE SPECIFIED)

 

 

 

 

 

 

 

 

OP AMPS

= LM124 (UNLESS OTHERWISE SPECIFIED)

 

 

 

 

 

 

 

 

 

 

=

COMMON CONNECTION

 

 

 

221

 

204

 

222

 

 

223

 

220

225

 

224

 

2

 

8

 

3

 

 

4

 

1

5

7

6

 

J5

 

J5

 

J5

 

 

J5

 

J5

J5

J5

J5

 

 

1

C1

1

C2

C3

1

 

 

 

 

 

 

 

 

 

.068

 

.068

.068

 

 

 

 

 

 

 

 

 

2

400V

2

400V

400V

2

 

 

 

 

 

 

160J

 

 

 

 

 

 

 

 

 

 

 

 

600V

320V

 

 

 

 

 

 

 

 

 

 

 

 

TP4

 

 

 

 

 

 

 

 

 

 

 

 

.05

 

 

 

 

 

 

 

 

 

 

 

 

 

C4

 

 

R1

2W

R2

2W

 

R3

2W

80J

 

 

600V

160J

 

 

 

 

 

 

 

 

 

10

 

10

 

 

10

150V

 

 

.05

320V

 

 

 

 

 

 

 

 

TP6

 

 

C5

TP5

 

 

TP1

 

 

TP2

 

 

 

 

 

 

 

 

 

 

130V

 

 

130V

 

 

 

 

 

 

 

 

 

 

38J

 

 

38J

 

 

 

 

 

 

 

 

 

 

 

TP3

 

 

 

 

 

 

 

 

 

 

 

 

 

130V

 

 

 

 

 

 

 

 

 

 

 

 

 

38J

 

 

 

 

 

 

 

 

 

 

 

 

3-8-91G

 

 

 

 

 

 

 

MISC. USE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SNUBBER SCHEMATIC

 

 

 

 

 

 

 

 

 

 

 

 

S

19687

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.

 

Page 116
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Lincoln Electric SVM 122-A service manual General Information, Snubber PC Board M15370 Schematic