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ELECTRICAL DIAGRAMS
G-7 G-7
SQUARE WAVE TIG 275
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Bypass Board Schematic (S22530)
80J
150V
TP1
600V
.05
C8
5W
10
R1
250V
15
C9
600V
.05
C6
600V
.05
C7
600V
.05
C5
600V
.05
C2
600V
.05
C3
600V
.05
C4
600V
.05
C1
GND
GND CONNECTION MADE THROUGH SOLDER PAD
CODE NUMBER.
UNLESS OTHERWISE SPECIFIED)
BOARD.
SUPPLY
THE INTERCHANGEABILITY
CIRCUIT BOARD
MAY CHANGE
OR CIRCUITRY OF
NOTES :
THIS DIAGRAM MAY NOT
DIODES =
UNLESS OTHERWISE SPECIFIED)
CONNECTION MADE THROUGH
WITHOUT AFFECTING
LABELS
GENERAL INFORMATION
ARC STABILIZER
A PRINTED
(
1/4W
OF A COMPLETE
ELECTRICAL SYMBOLS PER E1537
EARTH GROUND CONNECTION
Graphic
Graphic
FRAME CONNECTION
ARC STABILIZER CAPACITOR
RESISTOR
N.A.
SHOW THE EXACT COMPONENTS
COMMON CONNECTION
AND SCREW TO STEEL STANDOFF ON MACHINE
MFD
.022/50V
CAPACITORS =
(UNLESS OTHERWISE SPECIFIED)
SINCE COMPONENTS OR CIRCUITRY ON
RESISTORS = Ohms (
POWER SUPPLY SOURCE POINT
VOLTAGE NET
1A, 400V
CONTROLS HAVING A COMMON
CONNECTION MADE THROUGH
HOLE WITH SOLDER PAD
HOLE WITH SOLDER PAD
80J
150V
TP2
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.
S22530
7-12-96