Toshiba RAS-B16N3KV2-E Service Manual page 80

11-8-5. Checking Method for Each Part
No. Part name
1 Electrolytic capacitor
(For raising pressure, smoothing)
2 Converter module
1. Turn OFF the power supply breaker.
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
C12, C13, C14 → 500µF/400V
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.
1 2
Diode check
Resistance value
Tester rod
in good product
e d
~
\
1
d
~
\
2
~
\
1
e
~
\
2
– –
79
FILE NO. SVM-12061
Checking procedure
Case that product is good
Pointer swings once, and
returns slowly. When
performing test once again
MCC-5009
under another polarity, the
Soldered
pointer should return.
surface
~
+
1 2 3
(DB01)
50kΩ or more
(0Ω in trouble)
~
–
4