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Service Manual
, 2016-12
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MCU can judge the door is closed or open.
10.3
Temperature test circuit
Take the temperature sensor of freezer compartment as example, this sensor is connected between 10 and 11
serially, by utilizing the characteristic of Ohmic value reduced following the temperature rise, sensor and
temperature acquisition circuit constitute voltage divider circuit, MCU figure out the Ohmic value by the divider
value, and conclude the freezer compartment temperature according to Ohmic value-temperature value table
10.4Freezer f
an motor circuit
The freezer fan is connected between 7 and 5. When the fan is requested to work, MCU send controlling signal to
output PWM wave, and Q9 turn on and turn off periodically ,Periodical current will be filtered by LC,and output
regular voltage, MCU can change the PWM wave shape so as to adjust the voltage value
Summary of Contents for CE-BCD505WE-ST
Page 1: ...1 54 SBS SERIES Service Manual 2016...
Page 6: ...Service Manual 2016 12 5 51 1 Safety Warning Code 1 1Warning for operation safety...
Page 7: ...Service Manual 2016 12 6 51...
Page 8: ...Service Manual 2016 12 7 51...
Page 9: ...Service Manual 2016 12 8 51 1 2Safety instruction for refrigerant...
Page 42: ...Service Manual 2016 12 41 51 11 Troubleshooting Method 11 1No cooling Air cooling Electronic...
Page 43: ...Service Manual 2016 12 42 51 11 2No working of compressor 11 3Inside frosting no defrosting...
Page 44: ...Service Manual 2016 12 43 51 11 4 Inside frosting no defrosting Maintenance guidelines...
Page 45: ...Service Manual 2016 12 44 51 11 5Light is not on 11 6Air duct not operated electronically...
Page 46: ...Service Manual 2016 12 45 51 11 7Fan failure 11 8Defective defrost circuit...
Page 49: ......