Lincoln Electric V350-PRO User Manual download pdf (Page 68)

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TROUBLESHOOTING & REPAIR

F-30 F-30

V350-PRO

OUTPUT DIODE MODULES TEST (continued)

TEST PROCEDURE

1. Remove input power to the V350-PRO.

2. Locate the output terminals on the front

panel of the machine. See Figure F.5.

3. Remove any output cables and load from the

output terminals.

4. Using the analog ohmmeter test for more

than 200 ohms resistance between positive

and negative output terminals. Positive test

lead to the positive terminal; Negative test

lead to the negative terminal. See Figure

F.6.

NOTE: The polarity of the test leads is most

important. If the test leads polarity is not cor-

rect, the test will have erroneous results.

FIGURE F.5 Machine Output Terminals

OFF

T ST

ARTWELD MODE

WELD MODE

ARC CONTR

CC-STICK SOFT

CC-STICK CRISP

TIG GT

-WIRE

-FLUX CORED

-4

-2

-6

-10

SOFT

CRISP

+10

-8

SELECT

REMO

LOCAL

WELD

TERMINALS

OUTPUT

CONTR

SELECT

MPS

NEGATIVE

OUTPUT

TERMINAL

POSITIVE

OUTPUT

TERMINAL

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Lincoln Electric V350-PRO User Manual Page 68

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