Lincoln Electric SVM140-A service manual Figure F.18 Control Board Removal from Mounting Pins

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F-52 F-52

TROUBLESHOOTING & REPAIR

CONTROL BOARD REMOVAL AND REPLACEMENT (continued)

5. Locate the control board and the five molex	6. Carefully remove the five molex type plugs by
type plugs connected to it. See Figure F.17.	depressing the locking tabs and gently
	extracting the plugs from the P.C. board
	receptacles.

FIGURE F.18 - CONTROL BOARD REMOVAL FROM MOUNTING PINS

DEPRESS

LOCKING TAB ON

MOUNTING PIN

MOUNTING

PIN (8)

CONTROL

BOARD

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7.Using the needle-nose pliers and screwdriv- er, gently remove the control board from the eight mounting pins by depressing the tabs on the mounting pins and carefully removing the board from the pins. See Figure F.18.

CAUTION

Be sure to follow the recommended static-free methods for handling printed circuit boards. Failure to do so can result in permanent damage to the equipment.

8.When replacing the control board, align the mounting holes with the eight mounting pins and gently slide the P.C. board onto the mounting pins until the board “snaps” onto the pins.

9.Replace the five molex type plugs in their respective receptacles. Be certain they are securely in place.

10.Carefully reposition the front assembly in place and install the four mounting screws previously removed.

11.Inspect, clear and secure all leads before installing the case wrap-around reassembly.

12.Using the 5/16” nut driver, install the case wraparound.

PRO-CUT 55