Samsung RB1955VQ - Sensor and Door Switch Testing Methods

58
Subordinate
R Defrost heater
F Defrost heater
Comp
Comp-circulation fan
R-Circulation fan
F-Circulation fan
R-Lamp
F-Lamp
Evaluation of mea-
surement result
Measurement
terminal
CN70 ⑤ - ①
CN70 ⑦ - ①
CN70 ⑨ - ①
CN71
⑦ - ①
CN71
⑤ - ①
CN70 ③ - ①
CN71 ⑨ - ①
CN71 ③ - ①
1. Measure resistance between the terminals and
check for malfunctioning of a load and wire
connection.
1. R sensor measures resistance of CN30
between ②~⑤.
2. Freezer sensor measures resistance of CN30
between ①~⑤.
3. R-defrost sensor measures resistance of CN30 between ④~⑤.
4. F-defrost sensor measures resistance CN30 between ③~⑤.
5. The measured value above is compared to the sensor specification and the temperature table in
speciication found in the manual.
* Unplug the power cord and disconnect the
connector from the main PCB CN70, 71 and
measure the following:
* Disconnect the connector from the main PCB
CN30.
* Resistance will be lowered while the
temperature rises due to a NTC type sensor.
Ref. 4) Check sensors
Ref. 3) Check a load