DONGBU DAEWOO ELECTRONICS FN-T650NTB SERIES, Service Manual

Page 1: ...RTT512NBG RTT512NWG April 2016 ...

Page 2: ...S AND PRECAUTIONS FOR SAFETY 2 1 SPECIFICATION 3 2 NAME OF EACH PART 4 3 COLD AIR CIRCULATION 5 4 WIRING DIAGRAM 6 5 PCB CIRCUIT DIAGRAM 7 6 HOW TO REPLACE THE PARTS 8 7 PCB CONTROL FUNCTION 16 8 EXPLODE VIEW AND PARTS LIST 24 ...

Page 3: ...tandard electrical components when replacing them 7 Make sure the hook is correctly engaged Remove dust and foreign materials from the housing and connecting parts 8 Do not fray damage machine heavily bend pull out or twist the power cord 9 Please check the evidence of moisture intrusion in the electrical components Replace the parts or mask it with insulation tapes if moisture intrusion was confi...

Page 4: ...Gross Volume Li Total 525 Li Freezer Compartment 163 Li Fresh Food Compartment 362 Li ISO Storage Volume Li Total 492 Li Freezer 142 Li Refrigerator 350 Li Weight Total 89 3Kg External Dimension Width x Depth x Height 768 mm X 732 mm X 1770 mm ...

Page 5: ...nsor 2 Freezer Compartment Shelf 7 Vegetable Case 3 Freezer Compartment Temperature Controller 8 Freezer Compartment Pockets 4 Fresh Food Compartment LED Lamp 9 Fresh Food Compartment Pockets 5 Fresh Food Compartment Shelves 1 3 2 4 5 6 7 8 2 Name Of Each Part 9 ...

Page 6: ...5 3 Cold Air Circulation ...

Page 7: ...6 4 Wiring Diagram ...

Page 8: ...7 5 PCB CIRCUIT DIAGRAMS ...

Page 9: ...ezer Louver Part No Photos Description 1 Remove Freezer Shelf at first 2 Remove 4 screws on Freezer Louver 3 Pull forward the Freezer Louver Then disconnect Freezer Motor 4 Disassemble the Cover Fan F AS Be careful not to damage the hook ...

Page 10: ...9 6 2 Cover Fan F As No Photos Description 1 Remove Cover Fan B 2 Replace Knob F Control Cover Fan B ...

Page 11: ...otor As No Photos Description 1 Remove 2 screws Remove Clamp Fan with pliers and then disassemble Fan with driver Unscrew the earth wire bolt 2 Remove the screws holding the bracket 3 Now disassemble the Freezer Motor ...

Page 12: ...vaporator 2 Pull forward the evaporator and pipes Be careful not to bend the pipes 3 Defrost Heater Disconnect Defrost Heater lead wire on the right Disconnect Temperature Fuse lead wire and Defrost Sensor lead wire on the left Disassemble the Defrost Heater Defrost Heater ...

Page 13: ...otos Description 1 Remove Deco M F Duct with driver Remove Cover sensor with driver 2 Disconnect R Senosr lead wire 3 Remove the screws on the Cover M F Duct 4 Separate Cover M F Duct with Insulator 5 Disassemble the R Sensor ...

Page 14: ...e of Fixture lamp and disassemble the LED lamp Disconnect LED Lamp lead wire No Photos Description 1 Remove Refrigerator Lamp Window Remove the screw on the LED lamp 2 Unlock the hook on the side of Fixture lamp and disassemble the LED lamp Disconnect LED Lamp lead wire Freezer compartment LED lamp Fresh Food compartment LED lamp ...

Page 15: ...4 No Photos Description 1 Remove cap FCP Remove the screw on the cap FCP 2 Unlock the hook on the botton of the cap FCP with driver Disassemble the cap FCP 3 Disconnect Front PCB lead wire 6 7 Front PCB ...

Page 16: ...15 No Photos Description 1 Remove the screws and disassemble the Grille As 2 Remove the screws and disassemble the Box Main PCB As 3 Disconnect Hosings on the Main PCB 6 8 MAIN PCB ...

Page 17: ...ght medium1 Light medium2 medium Medium strong1 Medium strong2 strong Set temp 43 41 39 37 35 33 31 Set temp 6 5 4 3 2 1 0 3 Lock Here in after indicates as Locking 1 Entering method When press Locking button for 0 5 second Locking Icon becomes on When Locking function is set all other key operation is not possible Includes dispenser switch and also buzzer does not operate 2 Release method When pr...

Page 18: ...erator on off difference 4 0 Off point of refrigerator 2 0 3 Refrigerator step difference light light medium 1 light medium 2 medium medium strong1 medium strong2 strong 1 deg for each step 4 R fan and compressor is controlled by on off point of each mode 1 When R sensor becomes on condition F Fan and compressor are operated 2 When R sensor becomes off condition F Fan and compressor are stopped 5 ...

Page 19: ...By conditions of defrost ⓑ Process General operation PRE COOL Defrost Heater on Pause 10 min General operation PRE COOL When the defrost heater works the temp of freezer increases So the COMP works for 25 min before defrost mode ⓒ Limited Time of Defrost Heater 40 minutes Heater turns off when D SENSOR is OPEN or SHORT 50 minutes Heater turns off after 50 minutes ⓓ Heater Off When the temperature ...

Page 20: ...Defrost Mode starts It proceeds from PRE COOL PRE COOL Heater on Pause 10 min General operation B Initial defrost mode starts after Prevention of Compressor Restart Refer to Function No 5 Initial Defrost Flow Chart of Defrost Start Start Total time 60hrs COMP time 14hrs COMP time 6hrs COMP Rate 80 Any error Total door open time 2 min END Defrosting start COMP time 2hrs YES YES YES YES YES YES NO N...

Page 21: ...ges 6 minutes R Sensor is more than ON Point TEMP ⓔ When RT mode is Low RT A Fan Chopping On Off 1min 2min ⓕ When RT mode is Low RT B Fan Chopping On Off 5min 3min ⓖ Function of R Heater Inspection After initial power is on R HTR is on off 5times for 10 seconds ⓗ When D HTR is on R HTR is on 7 6 Buzzer Sound INPUT CONTROL OBJECT Control Buttons Door Switch Initial Power Input Buzzer A Whenever PCB...

Page 22: ... 8 Time Reduction INPUT CONTROL OBJECT FAST KEY Buzzer A HOW TO REDUCE ⓐ 1 min Click FAST KEY one time on MAIN PCB ⓑ 30 min If you press FAST KEY continuously you can reduce 30 minutes on each 2 5 seconds with buzzer B Practice Use Can be applied to reduce needless time on test EX function of stop for 6 min 7 9 Demonstration Function INPUT CONTROL OBJECT save s cool Buttons Display Panel A START B...

Page 23: ...e working continuously the following actions are recommended for service Resistance R47 Default resistance 31 4Kohms Resistance R45 Cut the J1 off to reduce basic resistance by 1 5 C 2KΩ up Resistance R42 Cut the J2 off additionally to reduce basic resistance by 1 5 C total 4KΩ up R47 R SENSOR OFF point R47 R45 R SENSOR OFF point 1 5 C R47 R45 R42 R SENSOR OFF point 3 C 22 R SENSOR J2 R47 31 4K R4...

Page 24: ... ⓑ CONTROL Delete the conditions of RT sensor Control ⓒ CANCEL when RT Sensor is working normally C D1 ERROR It happens when D Sensor is OPEN or SHORT ⓐ DISPLAY d1 ⓑ CONTROL Return to next limit defrost time 40 min ⓒ CANCEL when D Sensor is working normally D DR ERROR It happens when the system senses door opens more than 1 hour ⓐ DISPLAY Ref door Err dr frz door Err dF ⓑ CONTROL Deletion of funct...

Page 25: ...ER 1 30125 0017801 00 GUIDE C CASE R AS FRP 512 GUIDE ROLLER 1 30125 0017901 00 GUIDE V CASE L AS FRP 512 GUIDE ROLLER 1 30125 0018001 00 GUIDE V CASE R AS FRP 512 GUIDE ROLLER 1 8 3010685900 BRACKET ADJ FT O AS FRT 512 2 9 3012105101 FOOT ADJ AS PP BLACK 2 10 3012935600 HINGE U AS SHP1 5T FRP 512 1 11 301149E100 COVER ADJ FT PP 1 Some parts can be chaged for improving their perfomance without not...

Page 26: ...1402100 MK183Q L2U 3001410000 Panasonic DG125E11RAW5 3016405800 350V 4UF NW60LHP4 L DG125E11RAW5 3016405900 350VAC 5 MK183Q L2U 3016406800 220VAC 14 LQ62LAUM 3016402060 400VAC 6 NW80LHP5 L COMP 20 3011190910 CASE VAPORI AS FRP 512 PP SCRAP 100 21 3012513950 HOSE DRN B PVC 22 60144 0008100 01 PIPE WICON AS FRP 512 23 30185 0000203 01 M BELL AS FR B512FH DC12V 23 1 3015914110 MOTOR C FAN D4612AAA27 ...

Page 27: ...FRAME I CASE SAS NO PRINT 39 3 3010518900 BOX ICE GPPS 3011657800 FRP 512 3011660700 FRP 512 DECO SHEET 3001443901 FRP 512 3011660700 GPPS DECO 42 1 3014810300 SENSOR R AS HARNESS SENSOR FRP 512 43 30125 0017300 02 GUIDE DRN O HIPS GRAY SILICON M B 6PART 45 30143MAH00 PCB REF LED AS 6 LED FR 4 172X20 1 6T 46 3015524600 WINDOW R LAMP FRP 512 WH2102AT 3017853600 PP GLASS INJECTION 3017853610 PP GLAS...

Page 28: ...0C9C10 GLASS DOOR_BLACK 56 1 3012320300 GASKET R DR AS PVC GRAY 1 57 3011190800 CASE EGG TRAY GPPS 1 30190 0013900 01 FRP 512 CRYSTAL 3019064710 FRP 512 SILK PRINT FRANCE 3019064720 FRP 512 BLUE 3019064500 FRP 512 CRYSTAL 3019064520 FRP 512 BLUE 3019064900 FRP 512 CRYSTAL 3019064910 FRP 512 SILK PRINT FRANCE 3019064920 FRP 512 BLUE Some parts can be chaged for improving their perfomance without no...