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SAMSUNG Home Appliance Service
Model:
SIDE-BY-SIDE REFRIGERATOR
RS2 3
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RS2 2
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RS2 1
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WARNING IMPORTANT SAFETY NOTICE The service guide is for service men with adequate backgrounds of electrical, electronic, and mechanical experience. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or dealer cannot be responsible for the interpretation of this information. SAMSUNG ELECTRONICS AMERICA, INC. Technical Service Guide Copyright ⓒ2004 All rights reserved. This service guide may not be reproduced in whole or in part in any form
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Contents ······························ 1. Safety instruction on services 4 ···································9 2. Warranty information ································ 3. Mechanical Disassembly 14 ······································ 4. 15 Circuit Diagram ························ 5. 16 Operation Principles By Parts Of Circuit ································· 6. Illustrated Parts Catalog 26 ● ···················· Appendix Ⅰ Ⅰ(Reference for circuit diagnostics) 31 3
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1. Safety Instructions on Service ●Unplug the refrigerator before making any repair or any replacement. Avoid the electric shock. ●Use the rated components on the replacement. Check the correct model number, rated voltage, rated current, operating temperature and so on. ●On repair, be sure that the wires such as harness are bundled tightly and are not exposed by water. Bundle wires tightly in order not to be detached by the external force. ●On repair, remove completely dust, particles or othe
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2. Warranty information SAMSUNG REFRIGERATOR LIMITED WARRANTY TO ORIGINAL PURCHASER This SAMSUNG brand product, as supplied and distributed by Samsung Electronics America, Inc. (SAMSUNG) and delivered new, in the original carton to the original consumer purchaser, is warranted by SAMSUNG against manufacturing defects in materials and workmanship for a limited warranty period of: One (1) Year Parts and Labor on Refrigerator Five (5) Years Parts and Labor on Sealed Refrigeration System Only* (*C
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3. Mechanical Disassembly 3-1) Refrigerator Disassembly Control Panel ········································ 7 Door Handle ········································· 7 Door Gasket ········································· 7 Refrigerator Door Light Switch ······························· 7 Refrigerator Light ······································ 8 Tempered Glass Shelf ··································· 8 Plastic Drawers in Refrigerator ······························ 8 Gallon Door Bin ··········
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3. Mechanical Disassembly 3-1) Refrigerator Disassembly Control Panel Door Gasket The door gasket is a molded gasket set into a 1. Insert a flat-blade screwdriver on the slot as shown, channel located in the door liner. and unlock the tabs. 1. Open the door. 2. Disconnect the wire connector. 2. Grasp the gasket and pull in an outward motion until the molded gasket separates from the door liner. Door Handle The door handles allow access into the refrigerator and freezer. They are front mounted
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Mechanical Disassembly Refrigerator Light The refrigerator light is located in the upper portion of refrigerator. 1. Pull the tip on the cover. Gallon Door Bin The door bins allow storage of perishable items. 1. Push the bin up and slide it out. Tempered Glass Shelf These shelves allow the storage of larger items and pull out for easy access. 1. Pull the shelf out as far as it goes. 2. Lift it up and remove it. Water Filter The water filter is located in the bottom left-hand corner of the refrig
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Mechanical Disassembly Damper in the Refrigerator Refrigerator Thermistor 1. Pull out the screw cap and remove the screw. The refrigerator thermistor is located inside of the 2. Remove the lamp cover by unlocking the tabs upper light cover of the refrigerator. and pulling the cover down. 3. Remove the screw at the cover damper. 4. Take off sensor and lamp wire connector located on the upper liner. 6. Remove the damper from the refrigerator. THERMISTOR Twin cool in the Refrigerator 1. Pull out
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Mechanical Disassembly 3-2) Freezer Disassembly Door Bin in Freezer The door bins allow storage of perishable items. 1. Push the bin up and slide it out. Freezer Shelf The shelves slide out for easy access for frozen items. 1. Slide the shelf out until it reaches its stop. Freezer Door Light Switch 2. Tilt down and slide it out of the compartment. This switch is located in the left-hand portion of the freezer and sends a signal to the processor. 1. With a small flat-blade screwdriver, unlock the
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Mechanical Disassembly top of the liner, and slide the ice maker in. Ice Dispenser & Ice Maker 5. Tighten the screws (2) of the ice maker support. The ice dispenser is located in the upper portion of the freezer. This assembly stores ice made by the icemaker and dispenses ice. FRONT LOCKING TAB 1. Lift the ice bucket up ① and slide out the ice TAB HOLES dispenser assembly ②. FRONT OF ICE TRAY GEARED MOTOR SHAFT Auger Motor Case The ice maker is located inside of the ice dispenser This shelf is
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Mechanical Disassembly Freezer Light Evaporator Cover in Freezer The freezer light is located in the bottom of the 1. Remove screw (6). auger motor case. The light is covered by an opaque 2. Remove the assy cover multi fre. cover. 3. Remove the assy cover supt motor fre. 1. Remove the screw and the light cover. 4. Remove screw (2). 5. Remove the cover evap front. 6. Disconnect the sensor wire connector. ASSY COVER MULTI FRE ASSY COVER SUPT MOTOR FRE Evaporator Fan Motor The evaporator fan is loc
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Mechanical Disassembly Evaporator in Freezer Evaporator is located in the bottom of freezer to produce cold air driven across the evaporator coils. 1. Take off the ductwork in Freezer. 2. Disconnect the wire connector (Heater, Bimental, and Thermistor). 3. Desolder the inlet and outlet tubes. 4. Remove the evaporator. 5. Take the same steps to seal the system as mentioned earlier. THERMISTOR Ice-MakerThermistor The Ice-Maker thermistor is located in its bottom. The temperature signal sends the
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Mechanical Disassembly 3-3) Machine Compartment Disassembly Machine Compartment ＆ ＆ Electric Box 1. Disconnect the power cord of the refrigerator. 2. Remove the fixed screws (6) of compressor cover. Condenser Fan 3. Slide up and take off the compressor cover to The condenser Fan is located in the middle of see the machine compartment. machine compartment. It cools down the sub- condenser and the compressor. 1. Lift up the rib under the support motor. 2. Pull the support motor. 4. Remove scre
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4. CIRCUIT DIAGRAM 15
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5. OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-1) POWER Terminal Oscillation Frequency ● Vcc(DC 5V) MICOM POWER AND SENSORS << BLDC BLDC MOTOR POWER(NOT USE) +12V(DC 12V) RELAY,PANEL POWER When turned on, rectified AC voltage which is stepped down on 2nd transformer flows between ① and ③ at about AC 15V, goes through the diode D101 and D104 is changed to DC, and provide constant 12V. It provides 5V to MICOM and other circuits via regulator REG102 (MC7805ACT), and make entire PCB operate. 5-2) O
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OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-3) RESET CIRCUIT RESET Circuit allows the whole program to go back to the initial setting by initializing parts such as the RAM in MICOM with the power supply into MICOM or with an instant power failure. Upon the power supply, the reset terminal voltage becomes "LOW" for several tens of ㎲ compared to Vcc voltage(DC 5V) at MICOM, and it maintains "HIGH"(Vcc Voltage) during normal operation. But, when Vcc drops down to 3.4~3.7V, the reset terminal volt
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OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-5) DOOR SWITCH DETECTON CIRCUIT 1) If R-Door is opened, the contact point of the door switch (4-3) becomes open, and the current of PCB line comes through R404 and R405 and provides 5 volt which is recognized as door is opened, and turn off the fan at different load. When the door is closed, the voltage goes out from R404 to Switch, the MICOM is applied with OV and the door is recognized as closed. 2) If F-Door is opened, the contact point of the door
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OPERATION PRINCIPLES BY PARTS OF CIRCUIT 5-6) TEMP SENSING CIRCUIT 1) Sensor uses a thermistor which has a temp coefficient of negative resistance and controls resistance. When the heat goes up, the resistance gets down and vice versa. R302, 4, 6, 9 and C301~C303, C305 are parts for noise prevention but they are not related to temp sensing characteristics. 2) If Vf is the incoming voltage to MICOM in case of F-Sensor, Vf equals (Rth * Vcc)/ ((R301 + Rth). Where Rth is resistance of THERMISTOR c
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OPERATION PRINCIPLES BY PARTS OF CIRCUIT Temp to Resistance of Sensor & MICOM PORT Voltage Sensor CHIP : PX41C Standard Temp. Voltage(V) Temp. Voltage(V) Temp. Voltage(V) Temp. Voltage(V) Resistance(㏀) Resistance(㏀) Resistance(㏀) Resistance(㏀) -50 °F/-45.6 °C 4.694 -19°F/-28.3°C 3.773 12°F/-11.1°C 2.253 43°F/6.1 °C 1.068 153319 30752 8200 2714 -49 °F/-45.0 °C 4.677 -18°F/-27.8 °C 3.729 13°F/-10.6°C 2.205 44°F/6.7 °C 1.04 144794 29350 7888 2627 -48 °F/-44.4 °C 4.659 -17°F/-27.2 °C 3.685 14°F/-10
