Toshiba RAS-13UAV-E2 Service Manual page 78

No. Part name
3
Inverter
assembly
Procedures
1) Perform work of item 1 of 1.
2) Remove screw (ST1T 4 x 10s 2 pc.) of the
upper part of the front cabinet.
If removing the inverter cover in this condition,
P.C. board can be checked.
If there is no space in the upper part of the
upper cabinet, perform work of 2.
Be careful to check the inverter because
high-voltage circuit is incorporated in it.
3) Perform discharging by connecting e, d
polarity by discharging resistance (approx.
100 40W) or plug of soldering iron to e, d
terminals of the C14 (printed "CAUTION HIGH
VOLTAGE" is attached.) electrolytic capacitor
(500 µF) on P.C. board.
Be careful to discharge the capacitor
because the electrolytic capacitor cannot
naturally discharge and voltage remains
according to trouble type in some cases.
NOTE :
This capacitor is one with mass capacity.
Therefore, it is dangerous that a large
spark generates if short-circuiting
between the e e e e e ,d d d d d polarity with screw-
driver, etc. for discharging.
4) Remove screw (ST1T 4 x 10s 2 pc.) 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.
Bundled
part
The connector is one
with lock, so remove it
while pushing the part
indicated by an arrow.
Be sure to remove the connector by
holding the connector, not by pulling
the lead wire.
– 77 –
FILE NO. SVM-03008
Remarks
Inverter cover
P. C. board
(Soldered surface)
Plug of
Discharging position
soldering
(Discharging period
iron
10 seconds or more)
Holder
Terminal block