Samsung RF26XAE**, RF267AEBP, RF267AE** Troubleshooting, unit normal?, NO0.6V Measurement

TROUBLESHOOTING

6) If F DEF Sensor has trouble

ERROR Code

Start

DATA1.

Temperature table

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

F-DEF : CN30#4 CN76#1 measuring resistance

	value	: Open trouble
** 0 : Short trouble /
	Refer to circuit diagram in the manual
	Sensor MICOM/Connector number
F DEF	Connector Cn30#4(Orange) to REG1
	HEAT-SINK PCB common Ground

Voltage measured between 4.6V ~ 0.6V.

Measuring voltage of IC01 MICOM #77,

CN30-"4"(Orange) and REG1, HEAT SINK from

PCB typical Ground part are similar. Check the measure on the SENSOR MARKING

#2(R310) due to the SMD MICOM

Are MAIN PCB		NO
Connector CN30 to CN76 insert
correctly?
	YES
		NO	Bad contact of connector/ insert correctly
Is F DEF Sensor
unit normal?
	YES
			Replace temperature sensor
Is the voltage between		NO(0.6V > Measurement < 4.6V)
MAIN PCB Connector CN30#4 (Orange) and
REG1, HEAT SINK normal?
	YES
			Check the contact of PCB & Wire
Is the input voltage of		NO	Terminal correctly.
IC01 MICOM #77 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 DEF Sensor resistance CN30#4(Orange) CN76#1(Gray)

-Compare the temperature table after the measure.

Checking method of F DEF Sensor voltage

- Measure the voltage of Sensor Check Point #2(IC01 MICOM #77) on PCB or CN30#4(Orange) REG1, HEAT SINK

- Compare the temperature table after measurement. Measuring voltage of CN30#4(Orange) REG1, HEAT SINK are asbelow

typical PCB Ground

REG1 HEAT-SINK

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