Lincoln Electric V155-S 29TROUBLESHOOTING & REPAIRF-29, Figure F.13 Inverter Board Removal

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F-29TROUBLESHOOTING & REPAIRF-29

INVERTER BOARD REMOVAL AND REPLACEMENT PROCEDURE (CONTINUED)

FIGURE F.13 – INVERTER BOARD REMOVAL

10MM

BOLTS

DC+

DC-

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OUTPUT

TERMINALS

7. Using a 10mm nutdriver with extension, remove the two bolts mounting the inverter board to the positive

(+) and negative (-) leads that connect to the output terminals on the front ot the macine. See Figure F.13

Note: One 10mm mounting bolt can be accessed from the soldered side of the inverter board. The other bolt must be accessed from the left side of the machine using the socket extension. Note washer placement for reassembly,

8. Label and disconnect any associated plugs and leads.

9.Remove the inverter board.

10.Connect JP 1 connector and make sure that the upper front corner of the board is in the locator slot of the front panel.

11.Be sure that the white lead is re-connected to the Positive Input terminal.

12.Re-connect the red and black leads to the DC+ and DC- points on the Inverter Board.

13.Re-install the Inverter to the case, making sure the ground lead is re-connected to the lower front cor- ner.

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INVERTEC® V155-S