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G-9
ELECTRICAL DIAGRAMS
NA-5
PROCEDURE PC BOARD SCHEMATIC
563
520
PCB
L
565
564
N.E.
SPEED
WELD
N.E.
515
500
500
515
500520
515
500
J9
4
J10
2
J10
11
J10
9
J10
6
J10
15
J10
12
J10
13
J10
14
J10
8
J9
5
J10
4
J10
1
26.7K
R16
C9
J9
6
J10
3
4.75K
R17
5.62K
R7
X1
1
2
13
10K
2W
CW
R8
C7
J19
11
X1
10
11
12
C5
J19
10
C4
332
R9
4.7
35V
C8
600mA
40V
Q2
5.62K
R4
MC14060
X2
16
8
47.5K
R18
10K
2W
CW
R5
4066B
X1
14
7
X1
4
3
5
X1
98
6
515
J8
5
J8
6
J8
1
J8
2
J8
4
J8
3
J10
7
520
VOLTS
STRIKE
N.E.
SCREW, FOR ESD.
STRIKE MODE SETTINGS
+10V
B
+5V
+10V
-10V
+5V
-10V-10V
TO PIN P8.
NUMBER.
NOTES :
NOT INSTALLED.
WELD MODE SETTINGS
+5V
A
N.E.
1.82K
R6
WELD PROCEDURE ENABLE
560
PROCEDURE KIT
LOGIC
PCB
8754
LOGIC
FRAME
581A
564A
581
584S
OUTPUT
561
RECEPTACLE
SPEED
CRATER
N.D.
-10V
500
515
+5V
655
515
I
N.C.
584
632
655 655
SELECTOR
PRESET MONITOR ENABLE
566
583S
584C
588
SUPPLIES
583C
ON LOGIC PCB
PCB
FROM REF
VOLTAGE ON
LOGIC
FROM LOGIC
CONTROL PCB
POWER
START MODULE
OPTIONAL OPTIONAL
WELD TIMER MODULE
D12
J18
6
J19
13
J18
5
8
16
Q7
Q14
Q13
MC14060
Q9
OUT2
Vdd
Vss
RES
Q10
Q8
Q6
Q12
Q5
CLKQ4
OUT1
X2
13
14
15
10
11
12
9
7
6
5
4
3
1
2
J18
1
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
N.C. A JUMPER PLUG CONNECTS 584C TO 583C WHEN THE OPTIONAL START MODULE IS
510P
562
O
500
583
515
588A
655
520
OPTION BOARD
TIMER BOARD
POWER SUPPLY DISTRIBUTION
NOT INSTALLED. ALSO, LOGIC CIRCUIT 694 LEAD MUST BE MOVED FROM PIN P10
CD
NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE
N.B. A JUMPER PLUG CONNECTS 584S TO 583S WHEN THE OPTIONAL START MODULE IS
WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY
500
TIMER BOARD
515
655
O
I
515
562
500
655
I
CRATER MODULE
632635
588
N.D. 564 IS CONNECTED TO 564A BY A LEAD RECEPTACLE JUMPER PLUG, WHICH IS
N.E. R2, R5, R8, R11 AND S1 ARE CONNECTED TO FRAME BY PCB TRACES AND MOUNTING
REMOVED WHEN THE OPTIONAL MULTI-PROCEDURE KIT IS INSTALLED.
AND BYPASSING
OPTIONAL
-10V
BURNBACK TIMER
D2
D3
STRIKE
+10V
LED3
D4
1/2W
10M
R20
D7
D11
100V
47p
C3
C1
S1
3
42 5
C2
S1
9
10
8
11
J18
3
635
562
OPTION BOARD
+5V
DIGITAL TIMERS
N.E.
-10V
STRIKE PROCEDURE
DISABLE
START
WELD
+5V
STRIKE
WELD
PRESET MODE
START
STRIKE
B
CRATER
STRIKE
A
STRIKE PROCEDURE
ENABLE
START DISABLE
WELD PROCEDURE ENABLE
START DISABLE
1.6384MHz
Y1
LED2
J19
14
J18
4
J19
4
D1
100V
22p
C2
LED1
D5
10K
2W
CW
R2
600mA
40V
Q1
5.62K
R1
C6
47.5K
R14
26.7K
R15
267
R3
4.75K
R13
D10
LED4
D6
D8
2.21K
R19
D9
N.E.
VOLTS
TO SET
ON 2 PLACE DECIMALS IS + .O2
ON CONTROL PCB
SPEED BUFFER
TO SET
VOLTAGE BUFFER
632
635
ON HOLES SIZES PER E-2056
ON VOLTAGE PCB
WELD
Ch'ge.Sht.No.
10-29-91
21
SCHEMATIC
EARTH GROUND CONNECTION
LAST NO. USED
POWER SUPPLY SOURCE POINT
COMMON CONNECTION
SHT.
NO.
L
8754
VOLTAGE NET
NA-5 PROCEDURE
FRAME CONNECTION
12
9
FILE: L8754_3DB
SCALE
MFD
1A, 400V
DIODES =
RESISTORS = Ohms (
NONE
(
THE LINCOLN ELECTRIC CO.
CLEVELAND, OHIO U.S.A.
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
CAPACITORS =
CHK.
(UNLESS OTHERWISE SPECIFIED)
UNLESS OTHERWISE SPECIFIED)
UNLESS OTHERWISE SPECIFIED)
.022/50V
1/4W
C-
EQUIP.
SUBJECT
TYPE
SUP'S'D'G.
UNLESS OTHERWISE SPECIFIED TOLERANCE
MATERIAL TOLERANCE ("t") TO AGREE
ON 3 PLACE DECIMALS IS + .OO2
ON ALL ANGLES IS + .5 OF A DEGREE
DR.
DATE
FM
WITH PUBLISHED STANDARDS
SUPPLY
LABELS
D-
R-
1.82K
R12
5.62K
R10
10K
2W
CW
R11
515
J11
6
J19
8
J19
6
J19
9
J18
2
J19
1
J19
7
J11
4
J19
2
J19
15
J19
3
J9
1
J9
3
O
J11
14
J9
2
J11
15
18
15V
C1
J11
11
J11
13
J11
8
J11
12
J11
9
J11
2
J11
1
J11
7
J11
3
J19
5
500
520
500
515
500
515
520
TIMER BOARD
515
510P
520
500
515
BURNBACK TIME OVER
START TIME OVER/WELD TIME INITIATE
CRATER TIME INITIATE
CRATER TIME OVER/BURNBACK TIME INITIATE
CURRENT
WELD TIME OVER
START TIME INITIATE
+10V
584
N.B.
I
500
O
1.6384 MHz
TEST POINT
FOR
TIME BASE
100 Hz
TIME BASE
+5V
510P
588588A
562
583
520
TIMER BOARD
+10V
500
-10V
7.68K
R21
3-6-92B
7-10-92N
7-12-96N
G-9
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 avail-
able 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.
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