Lincoln Electric IDEALARC SP-250 - Manuel (Page 112)

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G-12
ELECTRICAL DIAGRAMS
G-12
G1992 CONTROL PC BOARD SCHEMATIC
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.
+5 V
3.3K
R125
D2
100V 100p C82
100V 100p C87
100V 100p C81
100V 100p C86
100V 100p C84
P1
J1
11
P1
J1
14
P1
J1
9
P1
J1
13
P1
J1
10
P1
J1
16
D3 D1 D4
P1
J1
12
D6 D5 D7 D0
100V 100p C83
.33mH L7
DISPLAY
P1
J1
15
RES. NTWK.
100 .19W R100
12 14
7
9 10
6 3 8 4 2 1
11 13 15
5
16
3.3K
R126
3.3K
R127
3.3K
R128
3.3K
R129
3.3K
R130
3.3K
R131
LCD
74HC245
B4
OUT EN
DIR
B8
A7
B6 B5
A4 A3 A2 A1 A6
B7
A5
B2 B1 B3
A8
X21
19
1
9 2 7 6 4 3 8 5
18 17 16 15 14 13 12 11
100V 100p C85
3.3K
R132
ELECTRICAL SYMBOLS PER E-1537
THE INTERCHANGEABILITY OF A COMPLETE BOARD.
RESISTORS = Ohms (1/4W UNLESS OTHERWISE SPECIFIED) DIODES = 1A, 400V (UNLESS OTHERWISE SPECIFIED) NOTES :
58
SUPPLY
VOLTAGE NET
CIRCUIT BOARD MAY CHANGE WITHOUT AFFECTING
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED
SCHEMATIC
SP 250
COMMON CONNECTION EARTH GROUND CONNECTION POWER SUPPLY SOURCE POINT FRAME CONNECTION
LABELS
G
A COMMON CODE NUMBER. THIS DIAGRAM MAY NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING
DR.
+5 V
10K
R97
+5 V
P6
J6
4
P5
J5
3
1N4007 D61
6.8K R68
TRIG DECR INCR
+15 V
50V 2700p C17
206 555
+
REF
- TL431 X17
1 6
8
SUPPLY
A/D
C50
D32
320
325
P5
J5
1
D
D34
1N4007 D59
C
P6
J6
2
J3
11
10K
R67
4.7 35V C95
+15 V 1N4007 D58
1K CW
R138
P6
J6
1
5W 1K R84 1N4007 D62
10K
R69
330
R116
C48
C49
4.7K
R19
X13
14
8 9
10K
R77
22p 100V C6
X13
1
6 7 33K
R80
130
4.0MHz
Y1
10K
R79
2.2K
R82
2.2K
R83
1K
R101
4.7K R18
C31
.33mH L6 .33mH L4 .33mH L3 .33mH L5
22p 100V C8
1/2W 100 R113 1/2W 100 R114 1/2W 100 R115
1N4007 D60
1N4007 D64
P5
J5
2
P5
J5
4
X2
98
50V 0.1 C51
CIRCUITRY
7W .25
R40
D71
100 R108
X19
2
4 5
X19
1
6 7
X2
34
C
D C
A -5 V
X3
12 13
11
X2
12
J4 8
J4 6
J4 4
+5 V
+15 V
J4 5
J4 1
4.7K
R109
4.7K
R20
FOR OPTION PLUG
+15 V
+5 V
J4 7
1/2W 68 R118
D75 50V 20 C55
541
PM
539
P6
J6
6
CONTROL
C10
10K
R63
D70
39 10V C15
D51
100V .22 C29
1/2W 750
R37
X11
10
13
11
D52
X12
13
1
2
D41
GND
IN
OUT
X15
18 15V C20
15K
R46
1/2W 3.9K
R22
D44
+5 V 39 20V C21 -5 V
1W 6.2V DZ7
common
50V .27 C24
500mA 300V Q13
J3
8 P3
J3
10
+15 V
C
5.6K
R74
G
D S
18A 200V Q11
1/2W 1.5K
R31
P4 J4 2
102K R106
D46
1/2W 3K
R47
+5 V
D47
10K R140
D53
100 R107
15K
R36
47K R39
4.7K
R33
X12
5
4
3
X11
8
14
9
18 15V C14
C27
D2
D1
6 C25
X13
4
2
5
270
R112
1/2W 100 R99
1W 16V DZ5
2N4123 Q14
2N4125 Q16
50V .27 C26
6.8K R53
VOLTAGE AND CURRENT
SENSING CIRCUITRY
100K
R73
1/2W 3.9K R70
C9
C44
D72 D73
P4 J4 3
10K
R49
D45
10K
R55
1/2W 1.8K R57
P3
J3
9
OUT
IN
GND
X16
D43
1/2W 56K
R56
X1
1
3 2
5W 10V DZ3
5W 3.3K
R43
1/2W 56K
R51
TL431 X18 8
16
D48
D54
X1
7
5 6
TL431
X14
8
1 6
5W 50 R45
1400V .0047 C94
2200 63V C16
D39
10K R139
_ +
B
+15 V
541A
30V 200mA Q10
48
23
A/D /RES /IRQ EXTAL A/D IC2 I/O OC3 VRH I/O A/D IC1 A/D /XIRQ XTAL MODA MODB I/O MISO SCK MOSI Vss VRL OC4
A4/D4 A5/D5
A14
A6/D6
A11 A8 AS
A2/D2 A0/D0
R/W A12
A1/D1
I/O
E
A10 A9
A7/D7
I/O A15
68HC11A1
I/O
A3/D3
OC2 A13 Vdd
X6
27
44 20
9
22 17 46 39 8 25
15 13
19 7 41 3 30 45 29 43
37
4
35 36
40
2 42 38 14
24 47 21
33 28 11 12
18 6
26 5 16 1 31 10 32 34
BUZZER
J7 2
+15 V
P7
+5 V
+5 V
PIEZO
P7
PIEZO BUZZER CIRCUITRY
1/2W 27K R121
J7 1
B A B
+15 V
X11
2
4 5
5.6K
R25
X11
1
7 6
3.3K R117
1/2W 6.8K
R123
22K
R32
+5 V
10K R8
2N4123
Q3
P2
J2
3
D28
P2
J2
5 2N4123
Q20
+5 V
X2
13
12
P2
J2
9
1/2W 1.8K
R52
2N4123
Q2
533A
THERM. LD. CONN.
TO OPTIONAL
6.8K R58
204S
+5 V
D38
P2
J2
2
P2
J2
4
+15 V P2
J2
6
D25
207
P2
J2
8
2N4123
Q1
D31
D49
X13
13
10 11
+5 V
D
B
D30
D27
TACH
TACH CIRCUITRY
D50
6.8K R105
6.8K R59
2.2K R60
10K
R111
100 R61
X1
14
12 13
H
Q
A C
Q Q
CLK
Q Q Q
B
Q A1 A2
E F G
Q
R
D
74HC164
X7
6 4
2
12
13 1
10 11
8
5 3
9
CLK1
H
H SA CLK2 SS/PL
H
Q
F
Q
E D C B A G
74HC165
X8
9
14 12 11
1 7 2
15 10 6
13 3 4 5
10K R10 10K R9
+5 V
D26
1K
R12
1K
R13
1K
R14
10K R11
1K
R15 10K R104
2N4123
Q4
D24
P2
J2
7
50V 0.1 C33
50V 0.1 C34
1/2W
15
R92
50V 0.1 C35
4.7 35V C47
2.2K R91
D65
C28
10K R65
1/2W 10K
R62
50V 0.1 C36
1400V .0047 C79
50V 0.1 C37
15J 50V TP5
50V 0.1 C38
D66
50V 0.1 C77
50V 0.1 C78
NAND X3
14 7
50V 0.1 C32
X19
14
8 9
74HC373
X5
20 10 1/2W 330
R94
74HC164
X7
14 7
1/2W 270
R89
P3
J3
14
68HC11A1
X6
48 23
HEXINV X2
14 7
74HC245
X21 20 10
LM2901 X19
3 12
P3
J3
12
HEXINV
X20
14 7
1/2W 270
R90
1.0 35V C40
D68
2N4123 Q19
10K R93
H11C4 OCI3
2
1 5
6 4
5W 50
R96
1.0 35V C39
2.2K R95
P3
J3
5
15J 50V TP3
P3
J3
6
P3
J3
7
1400V .0047 C80
D67
F
X19
13
10 11
+5 V
13
12
Y
-5 V
X2
11
10
B
2
1
A
ACTUAL CIRCUIT
OF X10
34
C5
X20
12
X20
34
C43
LM2901 X11
3 12
C1
4066B X12
14 7
C4
56
74HC165
X8
16 8
11
10
C
X
E
98
202
203 202
+15 V
G2 204 G1
CAPS. = ufd (.022/50V UNLESS OTHERWISE SPECIFIED)
CT. AUX.
GENERAL INFORMATION
GATE DRIVE CIRCUITRY
203
203 204
AUX TRANSFORMER
2N4125 Q9
3.3K R34
J9
4
Y
400V .001 C13
D76
D35 539A
1W 18V DZ2 1/2W 100 R30
J9
9
1/2W 2.7K
R35
5.6K R28
22K
R119
S
G
D
200V 18A
2N4123 Q8
C56
+15 V
1W 18V DZ1
6.8K R38
Q21
X
541A
100V .047 C45
2N4123 Q6
1/2W 100 R120
1/2W
750
R122
X12
6
8
9
X12
12
11
10
+15 V
J9
5
X10
14 7 A
C
B
J9
10
300V 500mA Q7
C7
GND
RES
IN
X9
50V 0.1 C52
+5 V
A
+5 V
1/2W 10M
R16
RESET
CRYSTAL
B
+15 V
+
+
209
209A
OUTPUT
G2
208 206
TO CIRCUIT BOARD
-
TO GROUND
204
+15 V
206A
J9
6
2W 10
R48
WELDING
1/2W 330
R87
J9
1
202
400V .68 C23
P3
J3
4
CT. MAIN
206 209
20J 75V TP2
1400V .0047
C92
P3
J3
3
1400V .0047 C93
204
2W 10
R50
14
28
D5
A7
D1 D2
A1
GND
Vpp A13 A14
A8
A5 OE CE A4 A3
D4
A2 A6
A12 A10 D7 A9 A11 D6
A0
D0 D3
Vcc
27C64 X4
17 16
1
13
22 7
12
20 27 10
18
9
11 23 21
26 3
25 2 24
5
15
6
19
8 4
533
COM
E
PULL GUN TRIGGER
20
10
/OE
2D
5Q 6Q
0D
7Q 4Q 3Q 2Q 1Q 0Q Vcc
GND /LE 6D 4D 5D 1D 3D 7D
74HC373
X5
13 14
2 5 9 15
11
12 1 19
8 17 3
16
18 4
6
7
KEYPAD
F F
C D
1922
204A
204
C- R- D- LAST NO. USED
E
+15 V
95 140
D
P2
J2
1
1W 15V DZ4
LM224 X1
4 11
5W 50
R85
LM2901 X13
3 12
10K R88
2N4123 Q18
H11C4 OCI2
2
1 5
6 4
P3
J3
13
C3
C2
SOLENOID CIRCUITRY
2N4123 Q15
P1
J1
6
P1
J1
4
100V 100p C88
22K R54
1/2W
15
R86
P8
J8
3
4N35 OCI1
4
2 1
6
5
P8
J8
4
4.7 35V C30
1/2W 470
R71
D55 D56
1K R72
15A 60V Q17
D57
1/2W 100 R75
CW 10K
R3
27C64 X4
28 14
+15 V
1W 18V DZ6
3300 50V C19
50 25V C18
5W 1K
R44
150V 8A Q12
541A
6.8K
R23
D42
D40
7W .25 R136
P3
J3
1
208 P3
J3
2
20J 75V TP1
7W .25 R137
400V .68 C22
J9
2
J9
3
J9
7
J9
8
G!
207
+
204S
204
+
+
208A
ZERO-CROSSING
DETECTOR
LINE SENSING
POWER SUPPLIES
C
D
D
D
SOL.
P1
J1
2
Vo
.39mH L2
5W 20
R102
100V 100p C90
P1
J1
8
P6
J6
3
P1
J1
3
MOTOR
50V 0.1 C11
DRIVER
RS VDD
P1
J1
1
1/2W 18K R1
3.3K
R134
3.3K
R133
1/2W 100 R6 1/2W 100 R7
D37
3.3K
R135
1.0A 30V D20
204
D63
X1
10
8
9
330 R2
203
1/2W 100 R5
P1
J1
7
R/W VSS -LEDB +LEDB E
P1
J1
5
+15 V
202
204
100V 100p C91
.39mH L1
1/2W 1K R66
+ t 60V .25
R103
204
D29
+5 V
5W 20 R124
10K
R78
2.2K
R81
10K R98
10K
R76
X20
98
D69
X2
56
X20
11
10
A D B
A
X3
5 4
6
+5 V
X3
10 9
8
X20
13
12
2.7K
R4
-5 V
X20
56
X3
2 1
3
A
B
A C
J5
6
4
3
1
34
2
1 J4
J6
1
5
6
10
J9
J3
,
J7,J8
1
14 7
1
4
8
58
16A DD1
3
1
2 400V
10-19-90N
IDEALARC SP-250 IDEALARC SP-250