Lincoln Electric SVM161-A service manual Main Igbt Board Removal and Replacement

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

F-54 TROUBLESHOOTING AND REPAIR F-54

MAIN IGBT BOARD REMOVAL AND REPLACEMENT (continued)

FIGURE F.27 – MAIN IGBT BOARD LOCATION

MAIN BOARD

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

PROCEDURE

1.Remove input power to the V205-T.

2.Using a phillips head screwdriver remove the case wraparound cover.

3.Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section.

4.Locate the main IGBT board. See Figure F.27.

5. VERY CAREFULLY, label and	disconnect
plugs CN1, CN2, CN3, CN4 &	CN5. See
Figure F.28.

NOTE: All ribbon cable connections are secured by a small amount of RTV on the outside surface to keep the connections secure.

6.Using a 7mm nut driver, label and disconnect leads RV1, RV2, RV3, RV4, RV5, RV6 & RV7. See Figure F.28.

7.Using a phillips head screwdriver, remove the thirty-two (32) phillips head screws from the main board. Note washer positions for replace- ment. See Figure F.28.

8.Carefully maneuver the main board out of the machine. Replace.

9.Maneuver new board into its proper location and secure to machine using the thirty-two phillips head screws previously removed.

INVERTEC® V205-T AC/DC™