Samsung RF26XAEPN, RF267AEBP, RF267AE** Troubleshooting, unit normal?, NO0.6V Measurement

Models: RF267AEPN RF267AEXAA RF267AEWP RF267AERS RF26XAEXAA RF26XAE** RF26XAEPN RF26XAERS RF267AE** RF267AEBP

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MAIN PCB Connector CN30#3 (Red) and REG1,

TROUBLESHOOTING

5) If F Sensor has trouble

ERROR Code

2¢ (-17¡ ) is recommended

38¢ (3¡ ) is recommended

DATA1.

Temperature table

**Measuring point of resistance value according to Sensor **

F : CN30#3 CN76#1 measuring resistance value

** 0 : Short trouble /

: Open trouble

Refer to circuit diagram in the manual

Sensor MICOM/Connector number

FConnector Cn30#3(Red) to

REG1 HEAT-SINK PCB common Ground

Voltage measured between 4.6V ~ 0.6V.

Measuring voltage of IC01 MICOM #81,

CN30-"3"(Yellow) and REG1, HEAT SINK from PCB typical Ground part are similar.

Check the measure on the SENSOR MARKING

#1(R309) due to the SMD MICOM

Start

Are MAIN PCB

NO

 

 

 

Connector CN30 to CN76 inserted

 

 

 

 

 

correctly?

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

NO

Bad contact of connector/ insert correctly

 

Is F Sensor

 

 

 

 

 

 

unit normal?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

Replace temperature sensor

 

 

 

 

Is the voltage between

NO(0.6V > Measurement < 4.6V)

MAIN PCB Connector CN30#3 (Red) and REG1,

 

 

 

 

 

HEAT SINK normal?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

Check the contact of PCB & Wire

 

 

 

 

Is the input voltage of

NO

Terminal correctly.

 

 

 

 

 

 

 

 

 

 

 

 

IC01 MICOM #81 normal?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

Check the iced-solder, solder bridging,

 

 

 

 

 

 

 

 

disturbed solder. Replace the PCB

 

No trouble with PCB and temperature sensor

 

 

 

 

 

 

Recheck the bad contact of the connection

 

 

 

 

 

 

 

 

 

 

 

 

Checking method of F Sensor resistance CN30#3(Red) CN76#1(Gray)

- Compare the temperature table after the measure

Checking method of F Sensor voltage

- Measure the voltage of Sensor Check Point #1

(IC01 MICOM #81) or CN30#3(Red) REG1, HEAT SINK. - Compare the temperature table after the measure. Measuring

voltage of CN30#3(Red) REG1, HEAT SINK are below.

typical PCB Ground

REG1 HEAT-SINK

62

Page 63
Image 63
Samsung RF26XAEPN, RF267AEBP Troubleshooting, unit normal?, NO0.6V Measurement, MAIN PCB Connector CN30#3 Red and REG1