75
TROUBLESHOOTING
7) If Ice Room Sensor has trouble
Bad contact of connector/ insert correctly
Is MAIN PCB
Connector CN31 and CN76 inserted
correctly?
Is Ice Room Sensor
unit normal?
Is the voltage between
MAIN PCB Connector CN31-”3”(Orange)
and REG1, HEAT SINK normal?
Is the input voltage of
IC01 MICOM #71 normal?
Start
NO
YES
YES
YES
YES
Replace temperature sensor
NO
Check the wiring connection
NO(0.6V > Measurement < 4.6V)
Check the iced-solder, solder
bridging, disturbed solder
NO
No trouble with PCB and temperature sensor.
Check the bad connections.
** Measuring point of resistance value according to
Sensor **
Ambient : CN78#10
↔
CN76#1 Measure the
resistance value
** 0
Ω
: Short trouble /
∞Ω
: Open trouble
Sensor MICOM/Connector number
Voltage measured between 4.6V ~ 0.6V.
Measuring voltage of IC01 MICOM #90,
CN78-"10"(Orange) and REG1, HEAT SINK from
typical PCB Ground are similar.
→
Check the measure on the Resistance, R316 due
to the SMD MICOM
☞
Checking Mehod of Ice Room Sensor voltage
CN78-"10"(Orange)
↔
CN76-”1” (Gray)
- Compare with the temperature table after
measurement.
DATA1.
Temperature table
ERROR Code
Refer to the circuit diagram in this manual
Ice Room Connector CN78-"10"(Orange) and REG1,
HEAT SINK from typical PCB Ground
☞
Checking Method of Ice Room Sensor Voltage
- Measure the Resistance, R316(IC01 MICOM #90) on PCB or
CN78-"10"(Orange)
↔
REG1, HEAT SINK
- Compare with the temperature table after measurement.
Measured voltage of CN78-"10"(Orange)
↔
REG1, HEAT
SINK are as below
Typical PCB Ground
REG1, HEAT SINK
Start
YES
YES
YES
AW3 SM-EN 2011.3.31 2:56 PM 페이지75 in
Содержание RF4287HARS
Страница 17: ...18 PRODUCT SPECIFICATIONS 2 5 Dimensions of Refrigerator Inches AW3SM EN2011 3 312 52PM 18 in...
Страница 20: ...21 PRODUCT SPECIFICATIONS 2 7 1 PRINCIPLE OF FREEZEER BACK CLUSTER PIPE AW3SM EN2011 3 312 52PM 21 in...
Страница 86: ...87 TROUBLESHOOTING IPM FREEWHEELING DIODE VOLTAGE VALUE AW3SM EN2011 3 312 56PM 87 in...
Страница 96: ...97 TROUBLESHOOTING SPM Internal DIODE Voltage AW3SM EN2011 3 312 56PM 97 in...
Страница 98: ...99 TROUBLESHOOTING INVERTER PCB Circuit Diagram AW3SM EN2011 3 312 56PM 99 in...
Страница 115: ...116 EXPLODED VIEW PARTS LIST 5 6 Disassembly of Door Refrigerator R 5 1 3 2 6 4 5 5 AW3SM EN2011 3 312 57PM 116 in...
Страница 122: ...123 6 3 Connector Layout with part position Main Board PCB DIAGRAM 6 3 1 RF4287HA AW3SM EN2011 3 312 57PM 123 in...
Страница 123: ...124 6 4 Connector Layout with part position Inverter Board PCB DIAGRAM 6 4 1 RF4287HA AW3SM EN2011 3 312 57PM 124 in...
Страница 124: ...125 7 1 Model RFG295AA BETTER 7 WIRING DIAGRAM BLU BLU AW3SM EN2011 3 312 57PM 125 in...
Страница 125: ...126 7 2 Model RF4287AA BEST 7 WIRING DIAGRAM AW3SM EN2011 3 312 57PM 126 in...
Страница 126: ...127 7 3 Model RFG299AA 7 LCD 7 WIRING DIAGRAM BLU BLU AW3SM EN2011 3 312 57PM 127 in...
Страница 127: ...128 7 4 Model RFG294AA SEARS 7 WIRING DIAGRAM AW3SM EN2011 3 312 57PM 128 in...
Страница 128: ...129 8 1 Whole block diagram 8 SCHEMATIC DIAGRAM 8 1 1 MAIN BLOCK RF4287 AW3SM EN2011 3 312 58PM 129 in...
Страница 129: ...130 8 SCHEMATIC DIAGRAM 8 1 2 INVERTER BLOCK RF4287 AW3SM EN2011 3 312 58PM 130 in...
Страница 130: ...131 8 2 CIRCUIT DIAGRAM SCHEMATIC DIAGRAM 8 2 1 MAIN AW3SM EN2011 3 312 58PM 131 in...
Страница 131: ...132 SCHEMATIC DIAGRAM 8 2 2 INVERTER AW3SM EN2011 3 312 58PM 132 in...