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PRECAUTIONS FOR SERVICING
Be sure that the power switch is turned off or the power cable is disconnected before servicing.
Removing the P.W.B.s.
When replacing any P.W.B., disconnect all the cables (including ground wires).
[ Main P.W.B.]
Remove four screws securing the main
1
P.W.B. to the cooling fins, and remove the
main P.W.B. from the cooling fins.
Screw
Cooling fins
3
Remove screws fastening the lead wires
which are connected to the terminal board,
and remove the lead wires from the terminal
board.
WARNING
Remove the earth screw from the
2
electrical box.
4 Open these support latches to remove
the main P.W.B.
in the direction of the arrow as shown
in Fig A.
Terminal board
Lead wire
97
Open these support latches to
remove the P.W.B.
Fig. A
Earth screw
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