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F-70

F-70

TROUBLESHOOTING & REPAIR

REMOTE BOARD REMOVAL AND REPLACEMENT (continued)

PROCEDURE

1.

Remove input power to the V350-PRO.

3.

Perform the Input Filter Capacitor Discharge

 

Procedure detailed earlier in this section.

 

 

 

2.

Using a 5/16” nut driver remove the case wrap-

4.

Locate the remote board behind the front panel of

 

 

around cover.

the machine. See Figure F.29.

 

FIGURE F.29. – REMOTE BOARD LOCATION

Remote Board

Display Board

Mode Board

 

 

 

11130-1D1

or Advanced

 

 

L

CS71

L111

07-2

 

 

 

 

 

 

Process Board

 

STATUS

INPUT

 

 

 

 

 

MODE

SELECT

 

L11110-1

 

 

 

 

 

A

AMPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

VOLTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STIC

 

18

 

A

 

 

 

WELD

 

 

 

CC-

 

 

OUTPUT

 

 

 

 

STIC

K 70

 

 

 

 

 

 

 

 

 

CC-

 

 

 

 

 

 

 

TERMINALS

 

CV-

 

W

 

 

 

 

 

 

 

 

TIG

GTA

K 60

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

WIR

 

 

 

 

 

 

 

 

 

 

 

CV-

E

 

 

HOT S

 

 

 

 

 

FLU

 

 

 

 

SELECT

 

 

 

X CO

RED

 

 

 

 

 

 

 

 

4

5

TART

 

 

 

 

 

SELECT

3

 

 

A

 

 

 

 

 

 

2

 

6

 

 

 

W

ARNING

 

 

 

 

 

 

 

7

RC C

ONTROL

 

 

 

 

 

 

1

 

 

-2

 

 

 

 

 

 

 

0

 

 

8

-4

0

 

 

 

 

 

REMOTE

 

 

 

10

9

-6

+2

 

 

 

 

 

 

 

 

 

 

 

+4

 

 

 

 

 

 

 

 

 

 

-8

 

 

 

 

 

 

 

 

 

 

 

-10

 

+6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SOFT

+10

+8

 

 

 

 

 

 

 

 

 

 

 

CRISP

 

 

 

 

 

 

 

 

 

 

 

POWER

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

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V350-PRO

Page 120
Image 120
Lincoln Electric SVM158-A service manual Process Board, Perform the Input Filter Capacitor Discharge