Lincoln Electric LN-25 Service Manual page 63

F-26
CONTROL PC BOARD REPLACEMENT (continued)
SCREW
7. Remove the eight screws holding the
control PC board to the inside of the
case. Carefully remove the control
board. See Figure F.15.
8. Place the new control PC board in
position inside the case. Secure the
control PC board by installing the
eight screws from the outside of the
case.
9. For codes 10148 and above, install
the four Molex type plugs J1, J2, J3
and J4 onto the control PC board.
See Figure F.14A.
TROUBLESHOOTING AND REPAIR
FIGURE F.15 – CONTROL BOARD REPLACEMENT.
CONTROL
PC BOARD
10. For codes 9812 and below, install the
four Molex type plugs J1, J2, J3 and
J4. Also, connect the five individual
leads to the control PC board. If
necessary, refer to the wiring
diagrams in the Electrical Diagrams
Section. See Figure F.7.
11. Install the control box cover and
secure by installing the three screws.
See Figure F.1.
12. Install the wire reel and retaining
collar and close the case door. See
Figure F.1.
LN-25
F-26