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G-9
ELECTRICAL DIAGRAMS
SP-100
MACHINE SCHEMATIC: Codes Below 9794
LAST NO. USED
L
D
C
R
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY
NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE
NUMBER.
GENERAL INFORMATION
f
VOLTAGE NETSUPPLY
(connector cavity representations)
NOTES :
DIODES = 1A, 400V (UNLESS OTHERWISE SPECIFIED)
RESISTORS = Ohms (1/4W UNLESS OTHERWISE SPECIFIED)
CAPACITORS = d (.022/50V UNLESS OTHERWISE SPECIFIED)
ELECTRICAL SYMBOLS PER E-1537
LABELS
FRAME CONNECTIONPOWER SUPPLY SOURCE POINT
EARTH GROUND CONNECTION
COMMON CONNECTION
1%
W
7619
SCHEMATIC
203
203 203
B
6A
100V
Q7
1
3
2
WIRE
FEED
MOTOR
47.5
R62
GENERAL INFORMATION
.5
5W
R72
1W
16V
DZ3
3300
50V
C23
10K
R71
539
J2
2
541
J2
1
1W
43V
DZ4
3A
200V
D15
1.0
35V
C8
208
J2
10
+15V
203
J2
6
X2
1
3
2
100K
R53
SPEED
22.1K
R39
5K
R2
2W
LM224
X3
4
11
100K
R54
LM224
X2
4
11
CW
2K
R40
D13
D20
C13
1.00K
R41
18
15V
C15
15.0K
R36
10K
CW
R56
2
3
1
+15V
SHUTDOWN
X2
14
12
13
100K
R52
+15V
392K
R44
209
J2
7
203
2.21K
R49
1.00M
R43
C16
39.2K
R35
100K
R42
D12
LATCH
J1
13
6
1.00K
R55
C26
C14
30V
200mA
Q2
1
3
2
22.1K
R38
10K
R57
OUTPUT
1.8
20V
C19
32
1.00K
R58
X3
8
9
10
SWITCH
115VAC
60 HZ
32
TO GND.
D14
S1
L2
L1
B531
OVERCURRENT
P2 J2
4
T1
300V
85A
D1 D2
85A
300V
D3
85A
300V
D4
85A
300V
40V
C1
59K
P2 J2
3
500mA
300V
Q1
24V
T1
3
5
4
6
2
1
1N914
D10
68.1K
R20
OCI2
1
2
33.2K
R21
56.2K
R30
562
R23
100V
.1
C7
1
6
1.3K
R18
7619
CONNECTOR CAVITY NUMBERING SEQUENCE
(VIEWED FROM COMPONENT SIDE OF BOARD)
205
J1
4
X1
7
6
5
D9
1.3K
R15
+15V
+15V
L
206 J1
5
LM224
X1
4
11
C11
X1
14
13
12
OCI1
1
2
56.2K
R25
VOLTS
BURNBACK
PWM
FIRING
SCR
ARC
5K
ARC VOLTAGE
CONTROL
SOLENOID
FEEDBACK
ERROR AMPLIFIER
D11
GAS
C24
56.2K
R17
X1
8
10
9
ARC VOLTAGE
2W
C9
68.1K
R14
SAWTOOTH
MOTOR
2.21K
R31
2.21K
R47
56.2K
R29
500mW
5.1V
DZ2
267K
R22
562
R24
2.21K
R28
500mW
10V
DZ1
2
1
22.1K
R12
1.00K
R26
207
J1
1
1.0
35V
C10
C12
1.00K
R27
X3
5
7
6
82.5K
R13
ON-OFF
+15V
X2
6
7
5
5%
GAS
SOLENOID
MOTOR
1.3K
R16
FEEDBACK
SPEED
120VAC
SET
LOAD CURRENT
.5
5W
R69
FEEDBACK
VOLTAGE
MOTOR
STOP
5
10
J2
ELECTRICAL SYMBOLS PER E1537
CAPACITORS = MFD/VOLT (.022/50V,UNLESS OTHERWISE SPECIFIED)
RESISTORS = OHMS (1/4WATT,UNLESS OTHERWISE SPECIFIED)
DIODES = 1A/400V (UNLESS OTHERWISE SPECIFIED)
= COMMON CONNECTION
= SOURCE POINT CIRCUIT LOCATION
2N4123
Q5
4.75K
R11
+15V
1.00K
R70
R1
+15V
22.1K
R61
100K
R59
X1
1
3
2
6.81K
R19
22.1K
R60
X3
14
12
13
2N4123
Q4
300V
500mA
Q6
1.00K
R51
10K
R50
D8
D7
1/2W
27
R9
D5
D4
D6
D3
47.5K
R10
GND
IN OUT
X4
2W
27
R6
1/2W
1000
R2
D1
1/2W
150
R3
.0047
1400V
C1
1400V
.0047
C25
.1
400V
C3
B31A
2W
10K
R7
400V
.1
C2
1/2W
1K
R8
150V
45J
TP2
FIRING
REGULATOR
VOLTAGE
C4
1/2W
100
R5
GAS SOLENOID
B7
CONTROL
31
31A
115AC
MOTOR
FAN
BREAKER
CIRCUIT
30A
+15V SUPPLY
24VAC
+15V
150
50V
C5
D18
4.7
35V
C6
2500D
TRI1
2W
120
R1
600V
55A
SCR1
3
21
OCI1
4
6
600V
55A
SCR2
3
12
OCI2
6
4
MC7815CTDS
P1
J1
3
D19
SCR
D2
1/2W
1000
R4
B32A
OSCILLATOR
PWMERROR
AMP
CHOKE
213
J2
8
D17
10K
R74
WELDING
POWER
OUTPUT
3A
200V
D16
80
15W
R32
203
10K
R66
204
10K
R68
SWITCH
S2
THERMOSTAT
TRIGGER
+15V
15.0K
R67
211
J2
9
100V
.22
C22
+15V
X3
1
2
3
C21
2N4123
Q3
15.0K
R63
1.00K
R34
1.00K
R37
15.0K
R64
+15V
C20
80
15W
R33
6.81K
R65
WIRE
LEAD COLOR CODE
X2
9
8
10
204
3.32K
R46
267
R75
B - BLACK
W - WHITE
D21
4
10K
R73
1.00K
R48
4.7
35V
C17
1.0
35V
C18
18.2K
R45
1/2W
1/2W
75
21
DZ4
SP 100 WELDERS
7-27-90J
NOTE: This machine schedmatic is provided for reference only and may not be totally applicable to every code covered
in this manual.
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