Toshiba RAS-18J2AVSG-E, Руководство по обслуживанию

Страница: 112 / 143

11-8-5. Checking Method for Each Part
1 Electrolytic capacitor 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.
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.
No. Part name Checking procedure
Diode check
1 2
Tester rod Resistance value
in good product
50k Ω or more
(0 Ω in trouble)
+
~ ~
–
1 2 3
(DB01)
4
3 4
1
2
3
1
4
4
2
3
Case that product is good
Pointer swings once, and
returns slowly. When
performing test once again
under another polarity, the
pointer should return.
C09, C10
→
760
µ
F/400V
WP-044
- 112 -