Lincoln Electric WIRE-MATIC SVM 117-A - Manual (Page 73)

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F-20 TROUBLESHOOTING & REPAIR F-20
WIRE-MATIC 250
TEST PROCEDURE
NOTE: POLARITY MUST BE
OBSERVED FOR THESE TESTS.
Test for Correct Wire Drive Motor
Armature Voltage
1. Disconnect main input power to the
machine.
2. Remove the Case Top and Side
Panels using a 5/16" nut driver.
3. Locate Plug J5 on the G2332
Control Board. See Figure F.8.
FIGURE F.8 - Plug J5 Location on
G2332 PC Control Board.
WIRE DRIVE MOTOR AND TACHOMETER FEEDBACK TEST (CONTINUED)
G2332
WM-250 CONTROL
J2
J7
J4
J10
J6
J9
J3
J5
#541 (NEGATIVE)
(9J5)
#206B
(2J5)
J1 #555
(1J5)
#539
(8J5) #515B
(3J5)