Lincoln Electric SVM112-B service manual Schematic Snubber Printed Circuit Board, 16761 M

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G-20	ELECTRICAL DIAGRAMS	G-20
SCHEMATIC - SNUBBER PRINTED CIRCUIT BOARD

16761M

+15V

J60

D5

67A

R3

R10

12

J61

8

14

(67)

100K

100K

6

(202)

+15V

X1

.5W

.5W

13

J60

D4

R20

67B

R11

R12

10.0K

10

J61

15

+15V

8

(167A)

100K

100K

X1

7

(201)

9

.5W

.5W

J60

D3

21A

R14

R8

5

R21

J61

BOARD

9

7

10.0K

(121A)

100K

100K

10

(206)

+15V

X1

.5W

.5W

6

J60

D2

R22

CONTROL

21B

R17

R9

10.0K

3

J61

13

1

TO

(221A)

100K

100K

+15V

X2

8

(207)

.5W

.5W

2

J60

D1

5

R23

+OUTPUT

R6

R4

J61

11

7

10.0K

(499)

100K

100K

9

(203)

X2

.5W

.5W

6

DZ1

DZ3

DZ5

DZ7

DZ9

R24

5.1V

5.1V

5.1V

5.1V

5.1V

J61

1W

1W

1W

1W

1W

10.0K

5

C5

10K

C6

10K

C7

10K

C8

10K

C9

10K

(205)

51R

R7

16R

31R

820p

820p

820p

1R

820p

820p

COSMETIC TRACE

(J62-4 TO J61-5)

+15V

50V

50V

50V

50V

50V

4

4

R18

J61

DZ2

DZ4

DZ6

DZ8

DZ10

1

+15V

5.1V

5.1V

5.1V

5.1V

5.1V

C13

C12

100

(204)

1W

1W

1W

1W

1W

X2

X1

0.1

0.1

33074A

50V

33074A

50V

J61

R19

11

11

2

-15V

J62

100

J61

(208)

J62

(462)

3

L3

1

4

2

1

(461)

TP3

C3

X1

J61

2.7

2.7

2

320V

.0047

R5

R2

DZ11

C10

C11

DZ12

3

400V

10W

10W

J60

160J

15V

0.1

0.1

15V

CHASSIS

R11

1

J62

TP2

10

1W

50V

50V

1W

J60

6

40/100W

320V

2

160J

8

J60

TP1

C2

C4

X2

3

9

.0047

.047

J60

320V

400V

1200V

4

160J

J60

J62

J62

(464)

12

GENERAL INFORMATION

LAST NO. USED

5

-OUTPUT

7

4

J60

14

ELECTRICAL SYMBOLS PER E1537

R-

24

DZ-

12

(467)

C1

6

X2

CAPACITORS =

MFD (

.022/50V

UNLESS OTHERWISE SPECIFIED)

C-

13

J60

.1

13

RESISTORS = Ohms (

1/4W UNLESS OTHERWISE SPECIFIED)

LABELS

D-

5

7

J62

1000V

DIODES =

1A, 400V

(UNLESS OTHERWISE SPECIFIED)

J60

BACKGND

8

SUPPLY

VOLTAGE NET

10

(468)

NOTES :

POWER SUPPLY SOURCE POINT

J60

5

J62

12

N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE

COMMON CONNECTION

J60

J62

3

WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY

FRAME CONNECTION

14

J60

NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE

EARTH GROUND CONNECTION

16

NUMBER.

FILE: M16761_1BA

Ch’ge.Sht.No.

THE LINCOLN ELECTRIC CO.

EQUIP.

INVERTER WELDERS

1-6-95A

TYPE

CLEVELAND, OHIO U.S.A.

SUBJECT

SNUBBER P.C. BD. SCHEMATIC

DB

SCALE

NONE

DB

SHT.

M16761

DR.

DATE

1-31-93

CHK.

SUP’S’D’G.

NO.

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.

POWER WAVE 450