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F-20

TROUBLESHOOTING & REPAIR

F-20

 

 

POWER BOARD RESISTANCE TEST (continued)

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TEST DESCRIPTION

1.Remove main input power to the V250 -S.

2.Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section.

3.Locate the Power Board and associ- ated lead locations. See Figure F.3.

4.Carefully remove main transformer primary leads #201, #204, #205 and #208 from the power board.

5.Use the analog ohmmeter to perform the tests outlined in Table F.3. See power board schematic.

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201

 

 

204

207A

+

 

202A

 

 

G2684

 

 

POWERV250S

 

DANGER

 

 

HIGH VOLTAGE CAN KILL

209

208

203A

+

206

 

 

 

205

 

 

Figure F.3 Power Board Test Points.

INVERTEC V250-S

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Image 52
Lincoln Electric V250-S service manual Power Board Resistance Test, Test Description