Lincoln Electric SVM 106-A Service Manual page 81

TROUBLESHOOTING AND REPAIR
CONTROL CABLE CONTINUITY TEST (continued)
FIGURE F.3 – CONTROL CABLE CONTINUITY TEST POINTS.
CONTROL
CABLE
AMPHENOL
PLUG
TEST PROCEDURE
1. Disconnect the control cable amphenol
plug from the welding power source
and the wire feeder.
2. Using a multimeter, measure the
resistance of the control cable wiring
from the amphenol plug on the wire
feeder end to the terminal connectors
or amphenol plug on the welding power
TABLE F.2 – CONTROL CABLE PIN AND LEAD DESIGNATIONS
SIX PIN AMPHENOL
WIRE FEEDER END
A
B
C
D
E
F
C
D
B CONNECTOR LETTERING
E
A
F
source end. Refer to the Wiring
Diagrams in Section G, Table F.2, and
Figure F.3 for wire designations.
3. If the conductor resistance measures
greater than 1.0 Ohm, the cable is
faulty and should be replaced. If the
resistance between conductors is less
than 0.5 MOhm, the cable is faulty and
should be replaced.
LEAD NUMBERS
MACHINE END
4
2
32
31
CASE GROUND
21
F-17
SEQUENCE AS
VIEWED FROM
CAVITY END
OF CONNECTOR
FOURTEEN PIN
AMPHENOL MACHINE END
D
C
A
J
B
H
LN-7 GMA WIRE FEEDER