Samsung RF23R6 Series Service Manual page 83

3) If Humidity Sensor has trouble
ERROR Code
** Measuring point of resistance value according to Sensor"
Humidity : CN60 - "7" ↔ "16"
Resistance value with opened : about 50Ω
** 0Ω: Short trouble /Ω∞: Open trouble
Refer to circuit diagram in the manual
Sensor MICOM/Connector number
Connector CN60 – "7"(W/YEL) and "16"
Humidity
Pin(CN60) from PCB typical Ground
Voltage measured between 4.6V ~ 0.6V.
Measuring voltage of ICO1 MICOM #8, CN60 – "7"(W/YEL)
and "16" Pin(CN60) from PCB typical Ground part are similar.
→ Check the voltage of Resistance, R218
☞ Checking method ofHumidity Sensor resistance
CN60 - "7"(W/YEL) ↔ "16"(FLAT_WHT)
- Compare the temperature table after the measure.
Start Start
Is MAIN PCB Connector
CN60 insertedcorrectly?
YES
Is HUMIDITY/AMBIENT
Sensor unit normal?
YES
Is the
voltage between MAIN PCB Connector
CN60–"7"(W/YEL) and "16" Pin(CN60)
normal?
YES
Is input voltage of
ICO1 MICOM #8 normal?
YES
No trouble with PCB temperature sensor.
Recheck the bad contact of the connection
☞ Checking method of Sensor resistance
- Measure the voltage of Resistance, R218(IC01 MICOM #8) on PCB or CN60 – "7"(W/YEL) and
"16" Pin(CN60) from PCB are as below.
- Compare the temperature table after the measure.
Measuring voltage of R218(IC01 MICOM #8) on PCB or CN60 – "7"(W/YEL) and "16" Pin(CN60)
from PCB are as below.
83
TROUBLESHOOTING
No
Bad contact of
connector /insert correctly
No
Replace the Humidity Sensor
DATA2. Humidity Sensor Table
NO(0.6V >
Measurement < 4.6V)
Recheck the PCB &
Wire Terminal connection
NO
Check the iced-solder, solder
bringing, disturbed solder
Exchange the PCB
PIN Number