Sharp KS-M102 Service Manual page 18

2. Actual rice cooking test method
(1) Test conditions
1. Power supply voltage ...... 220V.
2. 2-cup of "PLAIN RICE" cooking.
3. Ambient temperature 20 - 30
4. Standard water level according to water level scale.
(2) Judging criteria
1. Each indicator shall be switched over as follows.
"PLAIN RICE" indicator lights.
"WARM" indicator lights.
"Warming" is continued.
2. Check the degree of rice scorching on the bottom of the inner pot.
Slight scorching............Normal.
Excessive scorching ......Thermistor plate ass'y or PCB ass'y is faulty.
3. Warming temperature measuring method (when room temperature is approx. 20
(1) With the inner pot empty, put a bar thermometer
o
100 C in full scale in the inner pot and close the lid.
Press select "PLAIN RICE" program and
after energizing about 2 minutes the "WARM/CLEAR"
button is pressed to [cancel].
Then press the "WARM/CLEAR" button to select
"warming" and continue warming for about 1 hour.
(2) It is OK, if the reading of the bar thermometer is within the following range.
Warming temperature 70-76
CAUTION
Check the temperature quickly because the reading of the thermometer falls rapidly with the lid open.
The bar thermometer is to be elevated from the inner pot bottom using a chip of packing case lest it
should come into direct contact with the inner pot.
(3) When the above temperature specification is not satisfied, replace the thermistor ass'y in the
[Replacing method for main parts (How to remove heater plate ass'y and thermistor ass'y)].
Remember that with a bar thermometer available on the market there is a permissible error of
1 degree or so.
o
C.
o
C
18
o
C)
Inner pot
o
100 C bar
thermometer
Jig made of a chip
of packing case.