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G-13
ELECTRICAL DIAGRAMS
G-13
G2252 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.
C40
50V
20
C51
D61
J4
8
33.2
R101
J4
5
300V
500mA
Q21
26.7K
R105
5.62K
R104
J4
7
C52
X11
1
6
7
4.75K
R90
J4
4
J4
6
475
R89
D50
D60
5.62K
R106
X2
5
6
X Y
+5 V
+15 V
22.1K
R102
1W
18V
DZ3
4.75K
R91
J4
1
+15 V
-5 V
541A
+15 V
+5 V
206A
515
C
A
542
541A
495
543
BA
33.2
R100
X11
14
9
8
D51
X10
14
7
100V
.047
C50
100
R103
206
208
209
T1 SECONDARY
J3
2
202
204
BOARD
204
+15 V
204
J3
1
203
G2
+15 V
TO CIRCUIT
TO GROUND
40V
600mA
Q5
1N4007
D14
P2
J2
3
P2
J2
5
P2
J2
7
40V
600mA
Q4
40V
600mA
Q2
2.21K
R18
1.00K
R6
D1
40V
600mA
Q3
P2
J2
6
P2
J2
8
P2
J2
2
C3
2.21K
R15
D7
1N4007
D13
+15 V
P2
J2
4
P2
J2
9
1N4007
D11
4.75K
R190
2.21K
R11
5.62K
R10
C5C4
15.0K
R23
C2
1N4007
D9
D5
D6
D2
207
G1
G2
204A
202
T1 AUX.
203
204
X2
1
2
X2
98
X2
3
4
562
R168
J3
5
X19
1
6
7
J3
6
X3
5
4
6
R/W
X20
1
2
X3
10
9
8
X3
13
12
11
VDD
X3
2
1
3
D23
C
4.7
35V
C21
600mA
40V
Q13
1.00K
R64
40V
600mA
Q10
100
R65
1.00K
R60
D34
P8
J8
3
P8
J8
4
40V
600mA
Q12
A
DB
C
1.00K
R62
1W
15V
DZ1
X20
3
4
E
-LEDB
+15 V
+LEDB
VSS
203
+5 V
RS
1.00K
R63
475K
R191
+
t
60V
.25
R61
D33
D24
3.92K
R66
5.62K
R68
1W
16V
DZ2
5W
20
R58
15A
60V
Q11
204
-5 V
+5 V
202
204
CNY17-3
OCI1
42
1
6
5
.33mH
L13
50V
0.1
C35
332
R82
.33mH
L14
50V
.27
C61
D71
THERM. LD. CONN.
320
325A
D
B
+15 V
+5 V
+15 V
+15 V
X1
1
3
2
D73
4.75K
R81
.33mH
L10
50V
2700p
C36
6.81K
R122
50V
0.1
C32
22p
100V
C30
6.81K
R77
J6
15
22p
100V
C31
.33mH
L5
.33mH
L4
.33mH
L6
5W
1K
R74
15.0K
R187
.33mH
L11
D40
D41
.33mH
L12
2W
10
R152
D86
TL431
X18
8
1
6
TL431
X14
8
1
6
3.01K
R150
5W
3.3K
R143
6.81K
R149
D75
400V
.68
C75
15J
50V
TP7
3.92K
R146
D85
7W
.25
R141
100
R148
500mA
300V
Q31
5W
10V
DZ7
100
R129
J9
4
2200
63V
C78
J9
1
50
25V
C81
5W
1K
R153
1400V
.0047
C72
J6
6
1400V
.0047
C80
20J
75V
TP2
80J
150V
TP4
J6
7
206A
CT. MAIN
T1
206
209
T1
15J
50V
TP6
38J
130V
TP5
15.0K
R147
J6
4
100
R108
39
10V
C56
267
R118
47.5K
R116
X12
13
2
1
6.81K
R113
18
15V
C55
G
D
S
18A
200V
Q24
J5
8
7W
.25
R119
750
R117
X12
5
4
3
1W
18V
DZ4
J5
12
D62
J5
11
G
D
S
18A
200V
Q20
2
3
1
J5
10
J5
13
J5
9
+15 V
+15 V
204
541A
AB
D
POWER SUPPLIES
209
+15 V
+5 V
+5 V
+5 V
+5 V
208
+5 V
RESET
SUPPLY
A/D
ZERO-CROSSING
DETECTOR
CURRENT SENSING
VOLTAGE SENSING
CIRCUITRY
CIRCUITRY
A
P7
P7
R
B
T1
208
CRYSTAL
X2
11
10
10K
R80
D72
130
4.0MHz
Y1
VSS
VDD
RES
S-8054HN
X9
CW
1K
R79
10K
R78
1400V
.0047
C71
7W
.25
R140
20J
75V
TP1
48
23
A/D
/RES
/IRQ
EXTAL
A/D
IC2
IC3
OC3
VRH
OC5
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
5
37
4
35
36
40
2
42
38
14
24
47
21
33
28
11
12
18
6
26
43
16
1
31
10
32
34
1.00K
R72
1/2W
10M
R70
4.75K
R71
10K
R24
10K
R25
C33
C60
D74
51.1K
R126
.33mH
L8
J6
16
D70
4.7
35V
C34
511
R127
+
REF
-
TL431
X17
6
1
8
511
R125
100
R121
40V
600mA
Q14
X12
12
11
10
D52
22.1K
R111
6.81K
R109
3.32K
R112
10K
R96
750
R107
+15 V
C53
4.75K
R136
16.5K
R95
1.50K
R110
600mA
40V
Q25
+
PIEZO BUZZER CIRCUITRY
D
C
C
B
LINE SENSING
+5 V
X12
6
98
400V
.001
C54
X19
8
14
9
D53
+5 V
+15 V
PIEZO
BUZZER
_
X11
2
4
5
3.32K
R92
J7
1
J7
2
1.50K
R97
2.67K
R114
15.0K
R115
D54
100
R94
C41
X19
4
2
5
100V
.22
C42
X11
13
10
11
40V
600mA
Q22
40V
600mA
Q23
10K
R93
1.00K
R7
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
1N4007
D10
P2
J2
1
X2
13
12
10K
R2
10K
R4
10K
R5
1N4007
D12
10K
R13
X13
13
10
11
D8
D4
100
R14
100
R17
D3
+5 V
+5 V
+5 V
KEYPAD
A
C
B
40V
600mA
Q1
10K
R1
100
R20
1.00K
R8
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
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
10K
R19
10K
R16
10K
R3
C117
1.00K
R9
X13
14
8
9
X13
1
6
7
J3
3
D77
28.0K
R135
10K
R124
C63
C62
V
V
INPUT
CC
EE
NC
OUT
INPUT
NULL
4
NULL
7
OP27
X22
2
8
3
6
5
1
206B
28.0K
R123
J5
2
+5 V
51.1K
R131
6.81K
R133
10K
R134
J6
13
X1
7
5
6
J5
3
J6
11
203
28.0K
R130
50V
.27
C64
D76
+5 V
+15 V
D79
D78
GENERAL INFORMATION
RED LEAD
BLACK LEAD
B
LABELS
R
NOTES :
THE INTERCHANGEABILITY OF A COMPLETE BOARD.
THERMOSTAT SENSING
205
SHUNT
+
-
CIRCUITRY
206S
C
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED
THIS DIAGRAM MAY NOT SHOW THE EXACT
COMPONENTS OR CIRCUITRY OF CONTROLS HAVING
CIRCUIT BOARD MAY CHANGE WITHOUT AFFECTING
TACH
207
28.0K
R120
TACH CIRCUITRY
J6
14
515B
J6
5
J5
1
555
X20
13
12
P1
J1
5
P1
J1
16
P1
J1
6
D21
100
R45
CW
10K
R48
1.0A
30V
D20
100V
100p
C19
3.32K
R51
22.1K
R47
X20
11
10
100V
100p
C14
100V
100p
C13
100V
100p
C12
22.1K
R46
100V
100p
C11
.39mH
L2
100V
100p
C17
A
CD
EF
3.32K
R53
X20
98
X20
5
6
100V
100p
C10
P1
J1
4
P1
J1
3
P1
J1
2
P1
J1
1
P1
J1
7
P1
J1
8
50V
0.1
C20
3.32K
R50
X1
12
14
13
5W
20
R57
100V
100p
C18
100
R54
100
R55
100
R56
.39mH
L3
D22
332
R49
3.32K
R52
100V
100p
C15
100V
100p
C16
50V
0.1
C110
1W
18V
DZ5
13
12
98
5
6
C107
50V
0.1
C116
27C64
X4
28
14
50V
0.1
C112
3
4
LM224
X1
4
11
C105
1W
6.2V
DZ6
A
GND
IN
OUT
X15
OUT
IN
GND
X16
39
20V
C74
C106
18
15V
C79
X Y
-5 V
+5 V
common
-5 V
+15 V
OF X10
F
C
B
1
2
D
E
ACTUAL CIRCUIT
D87
3300
50V
C73
50V
0.1
C111
4066B
X12
14
7
NAND
X3
14
7
74HC165
X8
16
8
C104
OP27
X22
7
4
C103
11
10
D7
100
R30
100
R31
100
R32
100
R42
3.32K
R39
100
R41
100
R43
P1
J1
11
P1
J1
13
3.32K
R40
P1
J1
9
P1
J1
12
P1
J1
10
100
R44
P1
J1
15
3.32K
R34
3.32K
R36
3.32K
R35
3.32K
R38
3.32K
R37
+5 V
D1
D3
D4
D0
D2
D5
D6
3.32K
R33
P1
J1
14
.33mH
L1
207
541
PM
539
Vo
DISPLAY
LCD
CIRCUITRY
DRIVER
SOLENOID
SOL.
J5
6
J6
3
7
J3
1
4
1
326
DECR
324
208
P4
J4
3
J5
7
.33mH
L7
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
27C256
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
J5
4
J4
5
1
2
1
J9
3
4
1
4
58
10
CAPS. = ufd (.022/50V UNLESS OTHERWISE SPECIFIED)
9
DIODES = 1A, 400V (UNLESS OTHERWISE SPECIFIED)
J7
16
J1
1
16
H11C4
OCI2
2
1
5
6
4
+5 V
+5 V
68HC11A1
X6
48
23
50V
0.1
C114
74HC164
X7
14
7
50V
0.1
C115
HEXINV
X2
14
7
50V
0.1
C108
HEXINV
X20
14
7
10K
R176
74HC245
X21
20
10
74HC373
X5
20
10
2.21K
R177
J3
7
562
R173
C101
33.2
R169
562
R174
LM2901
X13
3
12
C102
LM2901
X19
3
12
C100
50V
0.1
C109
40V
600mA
Q41
H11C4
OCI3
2
1
5
6
4
+
+
G1
+ +
-
204S
+
OUTPUT
WELDING
207
CIRCUITRY
GATE DRIVE
X1
8
9
10
1400V
.0047
C90
10K
R163
40V
600mA
Q40
5W
50
R162
D90
D93
5W
50
R175
1.0
35V
C92
26.7
R170
D92
33.2
R164
1.0
35V
C91
26.7
R165
2.21K
R166
D91
562
R167
1400V
.0047
C93
50V
0.1
C113
681
R171
681
R161
681
R172
681
R160
LM2901
X11
3
12
MOTOR
ELECTRICAL SYMBOLS PER E-1537
RESISTORS = Ohms (1/4W UNLESS OTHERWISE SPECIFIED)
SCHEMATIC
J8
2251
SP 250 CONTROL
14
8
9
TOP
8
6
7
12
1
T1
POWER SUPPLY SOURCE POINT
A COMMON CODE NUMBER.
FRAME CONNECTION
COMMON CONNECTION
VOLTAGE NET
SUPPLY
EARTH GROUND CONNECTION
D-
C-
R-
LAST NO. USED
CT. AUX.
204A
T1
202
T1
CONTROL
X13
2
4
5
X19
10
13
11
20
10
/OE
2D
5Q
6Q
0D
7Q
4Q
3Q
2Q
1Q
0Q
Vcc
GND
/LE
6D
4D
5D
1D
3D
7D
74HC373
X5
17
4
12
9
6
5
11
16
1
2
7
18
13
19
3
8
15
14
400V
.68
C70
2W
10
R144
J9
2
D
CIRCUITRY
J2
1
325A
TO OPTIONAL
324A
J9
5
D83
C57
D82
150V
8A
Q30
16A
400V
DD1
D80
541A
5W
50
R145
P4
J4
2
1.50K
R189
1.50K
R188
J5
6
J5
14
INCR
325
COM
TRIG
327
10-9-92C
191
117
93
G
SPOOL GUN
TO
OPTIONAL
SPOOL GUN
IDEALARC SP-250 IDEALARC SP-250