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– 136 –
Screws
Front cabinet
Inverter cover
Cord clamp
Screws
(Discharging
period
10 seconds
or more)
Plug of
soldering iron
Discharging
position
Inverter
assembly
Remove the connectors
with locking function by
pushing the part indicated
by the arrow mark.
No.
Part name
Inverter
assembly
Procedure
1. Detachment
1) Perform work of item 1 of .
2) Take off screws of the upper part of the
front cabinet.
• If removing the inverter cover under this
condition, P.C. board can be checked.
• If there is no space in the upper part of
the upper cabinet, perform work of .
CAUTION
Be careful to check the inverter because
high-voltage circuit is incorporated in it.
3) Perform discharging by connecting
+
,
–
polarities by discharging resistance
(approx. 100Ω, 40W) or plug of soldering
iron to
+
,
–
terminals of the C14
(printed as “CAUTION HIGH VOLTAGE”)
electrolytic capacitor (500µF) of P.C.
board.
WARNING
The electrolytic capacitor may not nor-
mally discharge according to error con-
tents and the voltage may remain. There-
fore, be sure to discharge the capacitor.
WARNING
For discharging, never use a screwdriver
and others for short-circuiting between
+
and
–
electrodes. As the electrolytic
capacitor is one with a large capacity, it is
very dangerous because a large electric
spark will occur.
4) Take off screws (ST1T Ø4 × 10L, 2 pcs.)
fixing the main body and the inverter box.
5) Remove various lead wires from the
holder at upper part of the inverter box
and wiring holder at right side of the
terminal block.
6) Remove the lead wire from the bundled
part at left side of the terminal block.
7) Pull the inverter box upward.
8) Disconnect connectors of various lead
wires.
REQUIREMENT
As each connector has a lock mechanism,
avoid to remove the connector by holding
the lead wire, but by holding the connector.
Remarks