Toshiba RAS-13NKV-E Service Manual page 78

3 Outdoor temperature sensor
(TO), discharge temperature
sensor (TD), suction temperature
sensor (TS), outdoor heat
exchanger temperature sensor
(TE)
10-8-5. Checking Method for Each Part
No. Part name
1 Electrolytic capacitor
(For raising pressure, smoothing)
2 Converter module
Disconnect the connector, and measure resistance value with the tester.
(Normal temperature)
Temperature
Sensor
TA, TC (k )
TGa : Heat pump model only.
TO, TS, TE : Refer to the TA, TC characteristic table in Indoor
(Refer to Table 10-8-3, No.1).
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 → 760µF/400V
1. Turn OFF the power supply breaker.
2. Discharge all four capacitors completely.
3 Check that the normal rectification characteristics are shown in continuity
test by the tester.
1
Tester rod
e
~
\
~
\
e
– 77 –
FILE NO. SVM-05027
10°C 20°C 30°C
105 64 41
Checking procedure
sjCase 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
2
Diode check
Resistance value
in good product
d
1
d
50kΩ or more
2
(0Ω in trouble)
~
\
1
~
\
2
40°C 50°C
27 18
Mark
1 2