– 92 –
11-8-5. Checking Method for Each Part
FILE NO. SVM-13001
1 Electrolytic capacitor 1. Turn OFF the power supply breaker.
(For raising pressure, smoothing) 2. Discharge all three capacitors completely.
3. Check that safety valve at the bottom of capacitor is not broken.
4. Check that vessel is not swollen or exploded.
5. Check that electrolytic liquid does not blow off.
6. Check that the normal charging characteristics are show in
continuity test by the tester.
C12, C13, C14 → 500µF or 760µF/400V
2 Converter module 1. Turn OFF the power supply breaker.
2. Discharge all three capacitors completely.
3 Check that the normal rectification characteristics are shown in continuity
test by the tester.
Case that product is good
Pointer swings once, and
returns slowly. When
performing test once again
under another polarity, the
pointer should return.
No. Part name Checking procedure
Soldered
surface
Heat sink IGBT side
C12 C13
C14
MCC-5009
1
2
Diode check
ed
d
e
\
1
~
\2
~
\
1
~
\
2
~
Tester rod
Resistance value
in good product
50kΩ or more
(0Ω in trouble)
~+ –~
123
(DB01)
4
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