Lincoln Electric SVM112-B service manual Schematic Display PC Board Sheet, Piezo Buzzer Circuitry

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G-9	ELECTRICAL DIAGRAMS	G-9
SCHEMATIC - DISPLAY PC BOARD (SHEET 1)

1-3922 G

+5V

+15V

9

448

J16

+5V

1

X5

8

10

Vdd

26

Vcc

44

20

20

20

14

14

12

16

16

Vdd

3

Vdd

3

11

X11

10

C27

C22

C23

C29

4

4

0.1

0.1

1.0

0.1

X7

C57

DZ5

X8

C48

DZ4

C50

C49

X3

C56

C20

C12

C52

C55

X14

C54

X10

C25

X13

C30

12

11

J16

50V

50V

35V

50V

0.1

X4

X9

X11

X5

X16

X12

C39

C40

X5

449

0.1

5.1V

5.1V

X1

X2

13

13

12

7

W1

50V

50V

1W

0.1

0.1

0.1

74HC04

0.1

54HC08

0.1

0.1

0.1

0.1

0.1

0.1

X11

MC68HC11

1W

PSD301

74HC573

74HC573

74HC573

MC6850CS

74HC4040

74HC151

MC14489

MC14489

LM224

0.1

LM224

0.1

C26

50V

50V

50V

50V

50V

50V

50V

50V

50V

50V

C28

GND 12

GND

Vss

50V

50V

0.1

GA

Vss

34

14

Vss

GD

1.0

GD

1

10

10

10

7

7

1

8

8

14

11

11

3

4

50V

X11

J16

35V

-5V

446

12

9

-5V

GA

GD

X1

14

5

X11

6

J16

447

+15V

13

10

GD

C21

C19

LED15

0.1

D

1.0

50V

35V

-5V

R

LED19

A

O

J16

FULL DUPLEX RS232 COMMUNICATION LINK

7

Q2

Vcc

16

4

D0

B

443

+5RS232

74HC151

2

LED18

1

6

3

R

Q12

Q3

D1

C38

PIEZO BUZZER CIRCUITRY

EW

C37

LED34

15

Q11

X12

Q4

5

2

D2

Y

5

1.0

0.1

+5RS232

LED13

14

Q10

Q5

3

1

D3

X14

O

J16

35V

50V

+5V

9

Q1

Q6

2

15

D4

P

442

LED30

+15V

3

10

/C

Q7

4

14

D5

/Y

6

M

GRS232

J17

5

16

1

X15

750

LED14

11

R

Q8

13

13

D6

O

J15

R43

LED32

8

GND

Q9

12

12

D7

1

RF

J16

C18

6.81K

+

444

-8V

10K

D21

PIEZO

6

18

R42

LED16

74HC4040

11

A0

15V

+10RS232

41R

BAUD0

J15

_

BUZZER

C44

C41

LED33

A1

10

20

18

1

6

GD

BAUD1

Q15

2

1.0

0.1

A2

50V

2

C1+

C1-

17

OCI7

4

LED17

BAUD2

9

600mA

35V

C17

GND

Vdd

C16

Q3

H11L2

Rx

7

STROBE

PIEZO

R115

40V

J15

18

X15

18

40V

2

5

LED29

3

J15

15V

4

Vss

Vcc

19

15V

600mA

LED12

GD

3.32K

+5RS232

4

C2+

C2-

41

475

475

(POWER DOWN)

10K

C70

J16

1

3

C14

R47

LED31

22.1K

1R

445

8

R33

R34

XIRQ

330p

GD

GRS232

C15

LED11

+5V

50V

18

-10RS232

15V

LED28

BI-DL[0:15]

GD

J16

DZ2

C24

LED4

5.1V

0.1

RECEIVE

R48

4.75K

11

1W

50V

GRS232

LED27

J17

X16

3

LED10

1

VSS

/IRQ

7

IRQ

J17

J17

5

2

+5RS232

3

RxCLK

R/W

13

R/W

11

X15

10

J17

LED7

LED24

4

TxCLK

D0

22

BI-DL[0]

6

23

21

BI-DL[1]

GRS232

J17

10

J17

4

/DCD

/DCD

D1

5

/RTS

D2

20

BI-DL[2]

LED8

LED22

-5V

GRS232

6

TxData

D3

19

BI-DL[3]

Tx

ISOLATED POWER & SIGNALS

2

18

BI-DL[4]

LED21

Rx

RxData

D4

+5RS232

LED5

24

/CTS

D5

17

BI-DL[5]

2.67K

TEMPERATURE

14

E

D6

16

BI-DL[6]

41R

1.00K

Tx

+5V

R3

COMPENSATION

+5RS232

+5V

LED25

10

CS1

D7

15

BI-DL[7]

LED6

301

11

RS

CS0

8

BI-DL[15]

J17

9

12

9

X15

12

VCC

/CS2

9

R13

6

750

R54

/CS_RS232

D2

R71

4.75K

267

J17

LED2

LED23

MC6850CS

X1

7

R49

R56

R57

8

6.81K

BI-DL[11]

5

4.75K

4.75K

22.1K

R53

10K

15R

BI-DL[14]

GD

Q6

R55

LED3

LED26

600mA

1

6

J17

1

6

E

+5V

2

J19

40V

OCI8

4

13

X15

8

7

OCI5

4

/DCD

X1

1

R70

5

P1

Vo

H11L2

C45

Q5

H11L2

LED9

LED20

1.00K

C46

+5V

3

10K

40V

CW

DZ7

2

5

330p

2

5

10K

50V

330p

R52

600mA

R73

R7

R5

R72

GD

8.2V

R58

50V

GD

RESET

10K

100K

133K

4.75K

1W

4

17

4

17

d

BANK5

d

BANK5

1.00K

TRANSMIT

GRS232

X10

X13

R66

GD

LCD

5

c

BANK4

16

5

c

BANK4

16

Vdd

9

-5V

DATA CARRIER DETECT

6

b

Vdd

3

6

b

Vdd

3

C60

X1

8

DISPLAY

GRS232

RES

X17

L1

a

BANK3

a

BANK3

7

15

7

15

S-8054HN

0.1

10

GD

MOSI

12

DATA IN

BANK2

13

OC5

10

/ENABLE

BANK2

13

C59

50V

GD

-8V

2

-LEDB

Vss

.39mH

J19

P1

OC5

10

/ENABLE

BANK1

9

19

h

BANK1

9

0.1

50V

14

19

14

2

Vss

h

Vss

e

RS_LCD

R68

R61

6

RS

J19

P1

1

f

g

20

20

g

f

1

GD

100

DZ6

100

2

e

DATA OUT

18

12

DATA IN

DATA OUT

18

RST

8

11

11

8

5.1V

Rx

CLOCK

CLOCK

Rx

1W

MC14489

MC14489

R62

7

R/W

1.50K

SCK

1.50K

MAIN PROCESSOR

J19

P1

4.75K

R35

71R

BI-DL[0]

GD

L2

LED

1

Vss

A0/D0

9

150

+LEDB

10K

R30

25

/SS

A1/D1

10

BI-DL[1]

R50

.39mH

1

150

J19

P1

GD

DRIVE

GD

10K

2

MODB

A2/D2

11

BI-DL[2]

R59

+5V

R40

150

10K

R39

3

MODA

A3/D3

12

BI-DL[3]

R60

150

XIRQ

18

/XIRQ

A4/D4

13

BI-DL[4]

R63

150

8

XTAL

X7

A5/D5

14

BI-DL[5]

R64

150

10M

7

EXTAL

A6/D6

15

BI-DL[6]

R65

BI-DL[0:15]

150

+5V

1/2W

+5V

1K

R240

52

VRH

A7/D7

16

BI-DL[7]

R67

R38

24

42

BI-DL[8]

SCK

SCK

A8

BI-DL[0]

44

GD

P1

J18

19

D0

2

BI-DL[0]

BI-DL[0]

2

D0

Q0

19

INFRA1

C36

23

A0/D0

Vcc

4

VDD

1

R9

Q0

74HC573

23

MOSI

A9

41

BI-DL[9]

P1

J18

75.0

18

74HC573

3

BI-DL[1]

BI-DL[1]

3

D1

Q1

18

4.9152MHz

10K

MOSI

BI-DL[1]

24

A1/D1

PA0

21

J19

9

P1

D0

3

R8

Q1

D1

INFRA2

0.1

22

MISO

A10

40

BI-DL[10]

P1

J18

R10

75.0

17

Q2

X9

D2

4

BI-DL[2]

BI-DL[2]

4

D2

X3

Q2

17

INFRA3

50V

R31

IRQ

BI-DL[2]

25

A2/D2

PA1

20

J19

10

P1

D1

5

Y1

21

TxD

/IRQ

19

P1

J18

75.0

16

Q3

D3

5

BI-DL[3]

BI-DL[3]

5

D3

Q3

16

C33

GD

TRN

BI-DL[3]

26

A3/D3

PA2

19

J19

11

P1

7

R4

INFRA4

C32

20

RxD

A11

39

BI-DL[11]

D2

75.0

15

Q4

D4

6

BI-DL[4]

BI-DL[4]

6

D4

Q4

15

22p

REC

BI-DL[4]

27

A4/D4

PA3

18

J19

12

P1

TRIM1

INFRA5

22p

27

PAI

A12

38

BI-DL[12]

D3

C8

01C

C9

C5

TRIM2

14

Q5

D5

7

BI-DL[5]

BI-DL[5]

7

D5

Q5

14

INFRA6

100V

100V

RS_LCD

BI-DL[13]

BI-DL[5]

28

A5/D5

X8

PA4

17

J19

13

P1

D4

28

OC2

A13

37

TRIM3

13

Q6

D6

8

BI-DL[6]

BI-DL[6]

8

D6

Q6

13

INFRA7

BAUD0

29

OC3

A14

36

BI-DL[14]

BI-DL[6]

29

A6/D6

PA5

16

J19

14

P1

D5

12

Q7

D7

9

BI-DL[7]

BI-DL[7]

9

D7

Q7

12

GD

BAUD1

BI-DL[7]

30

A7/D7

PA6

15

J19

P1

TRIM4

INFRA8

30

OC4

A15

35

BI-DL[15]

15

D6

BAUD2

BI-DL[8]

31

A8

PA7

14

J19

16

P1

CRYSTAL

43

A/D1

E

5

E

D7

TRIG1

BI-DL[9]

32

A9

PB0

11

J19

P1

GD

11

LE

LE

11

LE_INFRA

45

A/D2

R/W

6

R/W

/E_LCD

R36

8

E

LE_KEY

TRIG2

BI-DL[10]

33

A10

GND

34

J19

P1

1

OE

OE

1

SPTIG

47

A/D3

AS

4

AS

12

GND

PB1

10

100

100

GD

49

A/D4

/RES

17

RST

PIEZO

R37

DZ3

SPWF2

BI-DL[11]

35

A11

PB2

9

5.1V

GD

SPWF1

44

A/D5

A/D8

50

SENSE

BI-DL[12]

36

8

/OE_KEY

1W

3

VSS

A12

PB3

WATER

46

A/D6

IC1

32

J19

P1

THERMAL

BI-DL[13]

37

7

A13

PB4

/PB4

GD

C34

C31

C35

48

A/D7

IC2

33

GD

PRESSURE

BI-DL[14]

38

A14

PB5

6

1

2

1

0.1

0.1

0.1

31

OC5

IC3

34

FAN

/E_LCD

A

G

K

Q

/PB4

X11

OC5

FLAG

BI-DL[15]

39

4

X5

3

LE_KEY

50V

50V

50V

26

A15

PB7

/PB7

+5V

(2)

Vdd

VRL

51

E

2

MC68HC11

22

E

PC0

40

E

/CS_RS232

R/W

2

43

R/W

/CSI

+5V

4

GD

AS

13

5

10.0K

B

H

N

R

X5

6

LE_INFRA

AS

PB6

R28

9

8

5

+5V

/PB7

X11

RST

3

41

10.0K

/RES

PC1

R29

1

42

10.0K

+5V

/BHE

PC2

R32

PSD301

6.81K

R25

C

I

L

S

R24 K1.00

R16 1.00K

R2

K00 .1

21R

K00 .1

R6

K00 .1

1R1 .00K1

GD

J18

R27

D

J

O

T

P1

2

R22

2

D0 74HC573 Q0

19

BI-DL[0]

1.00K

GENERAL INFORMATION

LAST NO. USED

J18

75.0

R26

C1

P1

4

R21

3

D1

Q1

18

BI-DL[1]

267

R- 240

D- 24

DZ- 28

J18

75.0

0.1

P1

6

R20

4

D2

X4

Q2

17

BI-DL[2]

50V

ELECTRICAL SYMBOLS PER E1537

UNLESS OTHERWISE SPECIFIED)

C- 101

X- 17

TP- 1

P1

J18

R18

75.0

5

D3

Q3

16

BI-DL[3]

CAPACITORS =

MFD (

.022/50V

LABELS

LED- 34

Q- 29

OCI- 18

E

M

U

8

RESISTORS = Ohms (

1/4W UNLESS OTHERWISE SPECIFIED)

P1

J18

75.0

6

Q4

15

BI-DL[4]

R23

D4

DIODES =

1A, 400V

(UNLESS OTHERWISE SPECIFIED)

9

GD

SUPPLY VOLTAGE NET

P1

J18

R19

75.0

7

D5

Q5

14

BI-DL[5]

R99-R106 ARE NOT ASSIGNED

10

POWER SUPPLY SOURCE POINT

75.0

8

D6

Q6

13

BI-DL[6]

F

P

V

11C

C6

C7

C4

3C

C2

COMMON CONNECTION

9

D7

Q7

12

BI-DL[7]

FILE NAME:

G2239_1DA

FRAME CONNECTION

GD

+5V

SHEET 1 OF 2

EARTH GROUND CONNECTION

11

LE

/OE_KEY

1

OE

NOTES :

Ch’ge.Sht.No.

THE LINCOLN ELECTRIC CO.

EQUIP.

INVERTEC V400

KEYPAD INTERFACE

GD

1-6-95B

TYPE

N.A.

SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE

CLEVELAND, OHIO U.S.A.

SUBJECT DISPLAY/KEYPAD PCB SCHEMATIC

12-8-95E

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

SCALE

NONE

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

SHT.

G 2239-1

NUMBER.

DR.

DB

DATE

1-26-94

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