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F-7

 

F-7

TROUBLESHOOTING & REPAIR

Observe Safety Guidelines

 

TROUBLESHOOTING GUIDE

detailed in the beginning of this manual.

 

 

 

 

FUNCTION PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

(SYMPTOMS)

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

FUNCTION PROBLEMS

 

No current regulation in the Stick

1. Make sure the machine is set-

1. The Superimposition Board may

mode. Low open circuit voltage.

up and configured correctly for

be faulty

 

the Stick mode,

 

 

 

2. The Output Module Transistor

 

 

Board may be faulty. See the

 

 

Secondary Power Board Test

 

 

and Wiring Diagram

 

 

 

There is no response to changes to

1. Make sure the correct input

1. The Control/Display board may

the output control settings. No cur-

voltage is applied to the

be faulty.

rent regulation in all modes.

machine. 230 or 115VAC.

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-800-833-9353(WELD).

V205-T AC/DC

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Lincoln Electric V205-T service manual Secondary Power Board Test