1
C O N T E N T S
1. WARNINGS AND PRECAUTIONS FOR SAFETY ----------------------------2
2. EXTERNAL VIEW
2-1. External Size ---------------------------------------------------3
2-2. Name of Each Parts ----------------------------------------- ----4
2-3. Cold Air Circulation ----------------------------------------------5
3. SPECIFICATION -------------------------------------------------- -6
4. OPERATION AND FUNCTIONS ----------------------------------------8
5. CIRCUIT OPERATION
5-1. Power Circuit Diagram --------------------------------------------25
5-2. Function of Each Sensor ------------------------------------------26
5-3. Fan Function ---------------------------------------------------29
6. DIAGRAM
6-1. Wiring Diagram --------------------------------------------------30
6-2. Circuit Diagram of Main PCB ---------------------------------------32
7. COMPONENT LOCATE VIEW -----------------------------------------33
8. HOW TO CHECK EACH PARTS
8-1. Hose Ice Maker Tube ---------------------------------------------36
8-2. Bracket Geared Motor ---------------------------------------------37
8-3. Dispenser Micro Switch --------------------------------------------38
8-4. Dispenser Solenoid Valve ------------------------------------------39
8-5. Main PCB ------------------------------------------------------40
8-6. Ice Maker ------------------------------------------------------41
9. TROUBLE DIAGNOSIS
9-1. Power Failure ----------------------------------------------------43
9-2. Freezer Compartment ---------------------------------------------44
9-3. Refrigerator Compartment ------------------------------------------50
9-4. Operation Noise of Refrigerator --------------------------------------55
9-5. Door -----------------------------------------------------------61
10. COOLING CYCLE HEAVY REPAIR
10-1. Summary of Heavy Repair ------------------------------------------62
10-2. Precaution during Heavy Repair --------------------------------------63
10-3. Practical Work for Heavy Repair --------------------------------------64
10-4. Standard Regulations for Heavy Repair --------------------------------66
10-5. Brazing Reference Drawing -----------------------------------------67
11. EXPLODED VIEW & PARTS LIST
11-1. Exploded View (FRS(N)-U20DA) ------------------------------------ 68
11-2. Parts List (FRS(N)-U20DA) ---------------------------------------- 74
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