INVERTEC V300-I
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F-54
TROUBLESHOOTING & REPAIR
b.
Burned areas are visible on the Switch
Boards.
TEST PROCEDURE
1.
Carefully disconnect the leads at the top
of the Switch Board.
2.
Remove the four 3/16” socket head cap
screws as shown in Figure F.42.
If a test indicates that a Switch Board is
defective, both Switch Boards must be
replaced at the same time.In addition to
replacing the Switch Boards, Capacitors C1
and C2 (plus C14 and C15 on 575 VAC
models) must also be replaced if the follow-
ing conditions exist:
a.
Machine was operating from 380 VAC
or higher when the failure occurred.
ELECTRIC SHOCK can kill.
Observe all safety precautions detailed
throughout manual. Turn off input power to
machine. Discharge input capacitors. Only
qualified technicians should perform installa-
tions, maintenance, and troubleshooting work
on the machine.
WARNING
SWITCH BOARD REPLACEMENT
FIGURE F.42 — REMOVING THE SOCKET HEAD CAP SCREWS
FROM THE SWITCH BOARD.
