Daewoo frs20 manual Fan Function, Basic Model Dispenser Model

Page 37

5-4. Fan Function

1.Circuit Diagram

- Basic Model

- Dispenser Model

2. Explanation for the operation

* TA7291P is the drive IC for the only DC motor, and used for control of the fan motor * One input and output is used for the control of the fan motor

Input	Output	Remark
Motor IC No.5 Pin	Motor IC No.2 Pin	Remark
(R:MT2/F:MT3/C:MT1)	(R:MT2/F:MT3/C:MT1)
High	High	13V
Low	Low	Stop

- Vref is the reference voltage for the adjustment of the output voltage by the voltage distribution of Vs (Maximum output voltage), and the output voltage applied to the fan is determined by the PWM control using the software.

36

Image 37

Contents Refrigerator N T E N T S Page External Views FRSN-U20DB / EB FRSN-U20FB / GB Name of Each Parts Freezer Compartment Refrigerator Compartment Freezer Compartment Refrigerator Specification Door Switch , F / R Specification 220~240V Models onlyBasic Model Dispenser Model AC220V / 192WDisplay Operation and FunctionsFront PCB button Dispenser ModelReference Please wait Comp Defrost ModeDefrosting Cycle Fan Heater Flow Chart of Defrosting Start Fan Voltage of Control Mode Forced Defrosting ModeSensor FAN, R-FAN, C-FAN VoltageLouver Heater Control Buzzer or Alarm ControlControl of Interior Lights FRSN-U20DA Basic Model DemonstrationMain PCB Resistance of R-sensor Mid ON/OFF Point Compensation of R-sensor ON/OFF PointBasic Model LED Display of Inner Control Error DisplayRT-S Dispenser Model Cled Display of Front PCB Error Code ContentsBasic Model Dispenser Model Eierror Basic Model Inner Control Summary of FunctionDispenser Model Front PCB Automatic Icemaker Dispenser Model Back up Function Basic ModelStart Ice separating drop mode Dispenser Control Function Lamp Water S/V Circuit Operation Power Circuit DiagramBasic Model Dispenser Model ※ Voltage of every partMicom Function of Each SensorDispenser Model How it works Relay FunctionIC8 Fan Function Wiring Diagram DiagramDispenser Model Circuit Diagram of Main PCB Page Dispenser Model Page Front View Dispenser + Home bar Model Component Locate WiewInner View Machine Compartment EvaporatorHose Ice Maker Tube Assembly HOW to Check Each PartsDisassembling Procedure How to check Hose Ice Maker Tube AsHow to Check Hose Ice Maker Tube Assembly Bracket Geared Motor AssemblyHow to Check Micro Switch Dispenser Micro Switch▷ Good 215Ω±10% SOL2003-01B 193 ~ 236Ω Dispenser Solenoid Valve88 ~ DC 12V,1.5W ▷Check Change Flap Heater ASCheck Point Remark Main PCBCompensation Used when making R-temp. down ▷ Remove 2 screws on top front of ice maker Ice MakerIce Dropping Motor ▷ Good RS-360RH-14250 ~ 14Ω How to Check Ice MakerBlue Circle On Close※ How to replace Front PCB Faulty Start F/R lights OFF , F-PCB Power OFFTrouble Diagnosis Start4th pipe from buttom Freezer CompartmentDefrost Heater 192W 252 Ω Removing and replacing Freezer parts Removing and replacing Freezer parts Defrost Heater Ice Formation on F-Louver Start Switch to pull forward Disconnection / breaking of Freezer Lights Wires StartLight cover Cover and pull forwardRefrigerator Compartment Remove screws of light cover Hold the bottom Cover and pull Disconnection / Breaking of Refrigerator Lights Wires StartChange the light BulbsDoor is open too long ? Sensor is OK ? +screw driver Removing of Check ValveOperation Noise of Refrigerator Page Attach a absorber on point ③ accumulator Troubleshooting of Evaporator SoundFan Noise Start Fan is damaged Or transformed ? Troubleshooting of Fan Noise Pipe Noise Start Door Cooling Cycle Heavy Repair Contents ToolsBe sure to replace drier when repairing pipes Precautions During Heavy RepairUse special parts and tools for R-134a or R-600a Drier part with a nipper and then cut low pressure sideRemove residual refrigerant more than 5 minutes later after Practical Work for Heavy RepairClose valve ① To the low pressure sideAn evacuated bombe Be sure to chargeElectronic leakage tester Take a leakage test on the welded or suspicious area with anLow HighBrazing Reference Drawings Compressor Suction PipeInstallation Preparation Installation GuideDimensions including Door Handles Width*Depth*Height 903mm X 734.5mm X 1790mm※Remove front bottom cover first, if it is attached If the refrigerator can not enter the doorReplacing Freezer Door Case freezer door is lower Than refrigerator door Refrigerator Leveling & Door AdjustmentLeave a sufficient distance when cutting the tubes Join connector to water tap Get ready to install water lineAttach the filter box Remove any substance from filterConnect water tube 2Insert the fastening ring into the Water tubeDispenser Water Flow Cabinet Machine Room / Eva Part Refrigerator Room Freezer Room Freezer Door Refrigerator Door Reference