Toshiba RAV-SP564ATP-A, Service Manual

Page: 84 / 109

– 8 4 –
FILE NO. SVM-13047
Inverter cover
(Discharging
period
10 seconds
or more)
Plug of
soldering iron
Discharging
position
No.
3
Part name
Inverter
assembly
Procedure
1. Detachment
1) Perform work of item 1 of 1 .
2) Take off screws of the upper part of the front
cabinet. (ST1T Ø4 × 8L, 2 pcs.)
s If removing the inverter cover under this
condition, P.C. board can be checked.
s
If there is no space in the upper part of the
upper cabinet, perform work of
2
.
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.
100
Ω
, 40W) or plug of soldering iron to
+
,
–
terminals of the C14 (printed as “CAU-
TION HIGH VOLTAGE”) electrolytic capaci-
tor (500μF) of P.C. board.
WARNING
The electrolytic capacitor may not normally
discharge according to error contents and the
voltage may remain. Therefore, 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.
Remarks
Screws
Cord clamp
Screws
4) Perform 1 of
2
.
5) Take off screw between side cabinet
( right ) and inverter box ( wiring gate side )
( ST1T Ø4 × 8, 2 pcs. )
6) Take off screw between partition plate
and inverter box.
( ST1T Ø4 × 8, 1 pc. )
7) Remove each lead wire type from holder
of inverter upper part.
8) Pull upper part of inverter. Here, please
cut bundling band that tie each lead wire
type.
9) Remove connector of each lead wire type.
Front panel
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