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FR-780NT
Service Manual
42 pgs20.64 Mb0
User Manual
12 pgs946.31 Kb0

Daewoo FR-780NT, FR-780, FR-780NB, FR-820NT, FR-820NB Service Manual

S/M No. : FR780NT010
Refrigerator
Model: FR-780NT, FR-780NB
FR-820NT, FR-820NB
DAEWOO ELECTRONICS CO., LTD.
http : //svc.dwe.co.kr Nov. 1999
SAFETY AND PRECAUTIONS
1) For starters, be sure to check any chances of the leakage of electricity.
2) You could handle a part in the vicinity of electricity after unplugging.
3) You should put on rubber glovers to prevent an electric shock on operation test.
4) Make sure the rated current, voltage, capacity before using an instrument.
5) Keep your wet hands away from the metal goods in the freezer compartment not to be frostbitten.
6) Be careful not to let water to permeate the electric part in the machine room.
7) With the door open during your working, you might be damaged by that door.
8) You should give a title to the refrigerator for your safe after removing the breakable goods inside the refrigerator.
9) You'd better use cotton gloves if you fix it up around the evaporator.
TABLE OF CONTENTS
1. EXTERNAL SIZE .......................................................................................................................... 2
2. NAME OF PARTS ........................................................................................................................ 2
1. OUTLINE ...................................................................................................................................... 3
2. ELECTRIC PARTS ....................................................................................................................... 3
3. POWER CORD ............................................................................................................................ 8
4. DOOR COLOR ............................................................................................................................. 9
OPERATION AND FUNCTIONS .............................................................................................. 10
DIAGRAM ......................................................................................................................................... 17
1. CIRCUIT WIRING DIAGRAM ....................................................................................................... 17
2. AIR FLOW DIAGRAM .................................................................................................................. 18
3. REFRIGRANT CYCLE DIAGRAM ............................................................................................... 19
EXCHANGE OF MAJOR PARTS .................................................................................................... 20
EXPLODED VIEW AND PARTS LIST.............................................................................................. 35
1. TOTAL EXPLODED VIEW............................................................................................................ 35
2. TOTAL PARTS LIST..................................................................................................................... 36
3. MACHINE ROOM EXPLODED VIEW AND PARTS LIST............................................................. 40
1
EXTERNAL VIEWS
1. EXTERNAL SIZE
2. NAME OF PARTS
1
Freezer Compartment Lamp
2
Shelf Ffreezer
3
Case Icing
4
Guide Icing
5
Ice Box
6
Chilled Door
7
Refrigerator Compartment Lamp
8
Shelf Refrigerator
9
Cover Vegetable
10
Case Vegetable(B)
11
Case Vegetable(A)
12
Guide Vegetable
13
Adjustable Foot
14
Freezer Pocket Top
15
Freezer Pocket Under
16
Egg Pocket
17
Egg Tray
18
Bottle Pocket
19
JUMBO Pocket
20
Multi Pocket
2
SPECIFICATIONS
1. OUTLINE
DIVISION CONTENTS
MODEL NAME FR-780NT/NB FR-820NT/NB USABLE CAPACITY FREEZER
REFRIGERATOR TOTAL
EXTERNAL DIMENSION WIDTH 884 mm 884 mm
DEPTH 786 mm 821mm HEIGHT 1831 mm 1831 mm
REFRIGENT R12 190 g 190 g
R134a 150 g 150 g
COOLING &CONTROL SYSTEM COOLING SYSTEM Fan Cooling System
DEFROST SYSTEM Fin Evaporator Forced DEFORST CONTROL Automatic Start & Stop
NET WEIGHT 102 kg 106 kg
170 419 589
l l l
185 449 643
l l l
2. ELECTRIC PARTS
1) COMPRESSOR
REFRIGERANT R12
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 50 240 / 50 COMP MODEL X X X BL25YG-2 SL30YG-5 PL25YH-4 SL30YG-5 SL30YG-5 PART CODE X X X 3952125R20 3954130R51 3956125P40 3954130R51 3954130R51 STARTING TYPE X X X RSIR RSCR RSIR RSIR
REFRIGERANT R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 50 240 / 50 COMP MODEL X HBL25YG-3 X HPL26YH-5 X HPL26YH-5 HPL26YH-5 PART CODE X 3952125R30 X 3956126S50 X 3956126S50 3956126S50 STARTING TYPE X CSR X RSCR X RSCR RSCR
HEL21YH-1
3953121510
RSCR
3
SPECIFICATIONS
2) RELAY
REFRIGERANT R12
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 ASSY TYPE NAME X X X 414THBYY-52 276THBYY-52 197SHBYY-52 276THBYY-52 276THBYY-52
PART CODE X X X 3018119460 3018119350 3018118100 3018119350 3018119350
PTC RESIS-TANCE X X X S220 S220 S330 S220 S220
PART CODE X X X
OVER LOAD PART CODE X X X 414THB 276THB 197SHB 276THB 276THB
REFRIGERANT R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 ASSY TYPE NAME X 783NHBZZ-52 X 197NHBYY-52 X 197NHBYY-52 197NHBYY-52
PART CODE X 3018119390 X 3018119920 X 3018119920 3018119920
PTC RESIS-TANCE X S220 X S330 X S330 S330
PART CODE X X X X
OVER LOAD PART CODE X 783NHB X 197NHB X 197NHB 197NHB
317NHBYY-52
3018119950
S068
317NHB
3) STARTING CAPACITOR
REFRIGERANT R12
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 PART CODE X X X 3016400100 X X X X RATED VOLTAGE X X X 200V X X X X RATED CAPACITANCE X X X
100
REFRIGERANT R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 PART CODE X 3016400100 X X X X X X RATED VOLTAGE X 200V X X X X X X RATED CAPACITANCE X
100
X X X X X X
X X X X
4
SPECIFICATIONS
4) RUNNING CAPACITOR
REFRIGERANT R12
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 PART CODE X X 400EL15130 3816800400 X 400EL15110 X X RATED VOLTAGE X X 230V 300V X 350V X X RATED CAPACITANCE X X 10
7
X
5
X X
REFRIGERANT R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 PART CODE X 3816800400 X 3016401900 X 3016401900 3016401900 RATED VOLTAGE X 300V X 400V X 400V 400V RATED CAPACITANCE X
7
X
400EL15130
230V
10
4
X
4 4
5) F-FAN MOTOR
REFRIGERANT
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 TYPE NAME DL-2213DWFA DL-2213DWFA DL-2213DWFA DL-2213DWFA DL-2213DWFA DL-2213DWFA DL-2213DWFA DL-2213DWFA PART CODE 3015905310 3015905310 3015905310 3015905310 3015905310 3015905310 3015905310 3015905310 REVOLUTION 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM
R12,R134a
6) R-FAN MOTOR
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 TYPE NAME DL-2213DWRA DL-2213DWRA DL-2213DWRA DL-2213DWRA DL-2213DWRA DL-2213DWRA DL-2213DWRA DL-2213DWRA PART CODE 3015906910 3015906910 3015906910 3015906910 3015906910 3015906910 3015906910 3015906910 REVOLUTION 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM
7) C- FAN MOTOR
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 TYPE NAME DL-2213DWCA DL-2213DWCA DL-2213DWCA DL-2213DWCA DL-2213DWCA DL-2213DWCA DL-2213DWCA DL-2213DWCA PART CODE 3015906800 3015906800 3015906800 3015906800 3015906800 3015906800 3015906800 3015906800 REVOLUTION 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM 2200RPM
5
SPECIFICATIONS
8) DEFROST HEATER
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 SPEC (W) 250W 250W 250W 250W 250W 250W 250W PART CODE 3012800301 3012800301 3012800301 3012800310 3012800310 3012800310 3012800310
10) LAMP ASSEMBLY
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 SPEC (W) 15W 15W 15W 15W 15W 15W 15W 15W PART CODE 3013600010 3013600010 3013600010 3013600010 3013600080 3013600080 3013600080 3016800080 COLOR
11) PCB TRANSFORMER(FR-780NT/NB, FR-820NT/NB)
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 TYPE NAME FRB-5070NT FRB-5070NT FRB-5070NT FRB-5070NT FRB-5070NT FRB-5070NT FRB-5070NT PART CODE 5EPK057860 5EPK057860 5EPK057870 5EPK057004 5EPK057004 5EPK057004 5EPK057004
12) MAIN PCB ASSEMBLY(FR-780NT/NB, FR-820NT/NB)
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 TYPE NAME X N808 N808 N808 N808 N808 N808 N808 PART CODE X 3014388030 3014388030 3014388030 3014388010 3014388010 3014388020 3014388010
13) DRYER
REFRIGERANT R12 R134a
SPEC (g) 10g 15g PART CODE 3016805400 3016801030
6
SPECIFICATIONS
14) FUSE (PCB)
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ)
RATED CURRENT X 250V/1.6A X 250V/1.6A 250V/1.6A 250V/1.6A 250V/1.6A 250V/1.6A 250V/1.6A PART CODE X 5F3GB1682R X 5F3GB1682R 5F3GB1682R 5F3GB1682R 5F3GB1682R 5F3GB1682R 5F3GB1682R
100 /50,60 110 / 60 115,120/60 127/60
220/50
SL KL
220 / 60 230 / 60 240 / 50
15) THERMO FUSE
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ)
OPERATING TEMPERATURE X PART CODE X 3017200500 3017200500 3017200500 3017200500 3017200500 3017200500 3017200500 3017200500
100 /50,60 110 / 60 115,120/60 127/60
77 77 77 77 77 77 77 77
220/50
SL KL
220 / 60 230 / 60 240 / 50
16) DOOR S/W
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 PART CODE 3018100010 3018100010 3018100010 3018100010 3018100010 3018100010 3018100010
17) F-SENSER
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 PART CODE 3014801501 3014801501 3014801501 3014801501 3014801501 3014801501 3014801501 3014801501
18) R-SENSER
REFRIGERANT R12,R134a
VOLTAGE ( V/HZ) 100 /50,60 110 / 60 115,120/60 127/60 220/50 220 / 60 230 / 60 240 / 50 PART CODE 3014801601 3014801601 3014801601 3014801601 3014801601 3014801601 3014801601
7
SPECIFICATIONS
3. POWER CORD
NO
SHAPE OF POWER CORD
1 3011315000 CP-2PIN For european country
2 401RA17200 CP-2PIN For other country
3 4006D17101 KP-30 For America & El Salvador
4 401PD17101 KP-211 For Japan & Taiwan
PART CODE DESCRIPTION REMARK
5 3011300801 BP-3PIN
6 3011303010 # 267 For Chile
7 3011315310 For Israel
8 3011303050 BS-1363A For U.K, Middle Asia Singapore & Malaysia
9 3011301200 KP-551/550 For China & Australia
8
4. DOOR COLOR
1) ASSEMBLY URETHAN FREEZER DOOR
Refrigerant R12 R134a
COLOR TYPE Dull lamiasheet
PART CODE 3010074040 3010074050
High-glossy
Laminasheet
Normal PCM
2) ASSEMBLY URETHAN REFRIGERATOR DOOR
NON-KEY TYPE
Refrigerant R12 R134a
COLORTYPE Dull laminasheet
PARTCODE 3010072510 3010072520
High-glossy
Laminasheet
Normal PCM
High-glossy Bright PCM
High-glossy Bright PCM
Dull lamiasheet
Dull laminasheet
High-glossy
Laminasheet
High-glossy
Laminasheet
SPECIFICATIONS
Normal PCM
Normal PCM
High-glossy Bright PCM
High-glossy Bright PCM
KEY TYPE
Refrigerant R12 R134a
COLORTYPE Dull laminasheet
PARTCODE X X
High-glossy
Laminasheet
Normal PCM
High-glossy Bright PCM
Dull laminasheet
High-glossy
Laminasheet
Normal PCM
High-glossy Bright PCM
9
OPERATION AND FUNCTION
NO CONTROL FUNCTION CONTROL OBJECTS CONTENTS REMARK
1 DISPLAY CUSTOM LED
1. Normal state
1) SILENT Icon (Amber) is off.
2) Initial State : Both compartments, Icons indicate Middle-mode (“ 1” , and “ 2” are lit..)
2. FRZ.SET Button
1) Temperature Regulation of Freezer Compartment
2) Middle-left Icons are lit by pressing the button.
(1) 1 2 3 Q.F
3) When Q.F Mode is set, Freezer Mode’ s Icons (middle-left) are on and off 3 times, then only Q.F LED(red) is lit.
3. REF.SET Button
1) Temperature Regulation of Freshfood Compartment.
2) Middle-right Icons are lit by pressing the button.
(1) 1 2 3 Q.R
3) When Q.R Mode is set, Refrigerator Mode’ s Icons (middle-right) are on and off 3 times, the only Q.R LED(red) is lit.
4. SILENT Button
1) SILENT Mode starts by presssing the button.
- SILENT Icon IS LIT.
- All the other LED is off.
2) The mode is finished by pressing the button once again.
- The Icon turns off and it returns to previous[normal] state.
3) The mode ends by itself in 130minutes after its start.
- The Icon turns off.
- All the other LED is off.
10
OPERATION AND FUCTIOLNS
NO CONTROL FUNCTION CONTROL OBJECTS CONTENTS REMARK
2 Temperature Regulation
of Freezer Compartment
1. COMP
2. F-FAN
1. Temperature regulation by FRZ.SET Button.
(1) 1 2 3 Q.F
2. COMP and F-Fan are controlled by On/Off point of each mode.
3. Freezer Compartment ON / OFF DIFF : 5 (Middle(2)-OFF : -22.5 )
4. “ 3 “ / “ 1” DIFF : 2
5. Control Point of each Mode
¢ºReference
ON/OFF Diff : Fixed at Micom STEP Diff : Fixed at Micom
Comp/C- fanco­ working
3 Temperature Regulation of
Refrigerator (Freshfood Compartment)
1. COMP
2. R-FAN
6. COMP and F-FAN are ON during Q.F Mode regardless of F-Sensor. (Approximately 150minutes)
1. emperature regulation by REF.SET Button.
(1) 1 2 3 Q.F
2. R-Fan is controlled by On/Off-point of each mode.
3. ON / OFF DIFF : 0.35 (Middle(“ 1” ) Off-point : -1.0 )
4. “ 3” / ” 1” DIFF : 2
5. Prevention of Weak-refrigeration
1) When weak-refrigeration is sensed, COMP turns on regardless of F-Sensor.
2) When R-Sensor reaches to R-Fan Off-point, COMP is controlled by F-Sensor and R-FAN turns off.
3) Sensing point of weak-refrigeration ; R-S Off-point of each mode +7
4) Finishing point of weak-refrigeration ; same as R-S Off-point
ON/OFF, Diff :
Can not be changed STEP DIFF : Can not be changed
6. Q.R(Quick Refrigeration) continues for 40minutes.
11
OPERATION AND FUCTIOLNS
NO CONTROL FUNCTION CONTROL OBJECTS CONTENTS REMARK
3 Temperature Regulation of
Refrigerator (Freshfood Compartment)
1. COMP
2. R-FAN
* In case Q.R starts during 1(refrigeration) mode
Temp.
1
4 SILENT Control 1. COMP
2. R-FAN
3. F-FAM
4. Custom LED
Over refrigeration off point
Q.R(40min.
)
3
Time
1) R-Fan and COMP continue to be On until the R-Sensor reaches to Off-point(-7 ) of over-refrigeration.
2) It continues to be 3 until Q.R ends after reaching to Off-point of over­ refrigeration.
3) It returns to normal[previous] state when Q.R (40 minutes) ends.
1. SILENT Mode starts by pressing the button.
2. Terms to start SILENT Mode F-Sensor 15 Restart of SILENT within 40 minutes after the mode F-Sensor error Door Switch error In Defrosting Mode (HTR Defrosting, Pause, Fan-delay) SILENT starts if conditions to happen.
3. Once SILENT starts, all the electric devices (COMP, F-Fan, R-Fan) turn
Off and only SILENT Icon is lit.
4. Terms to finish SILENT Mode F-Sensor -9 More than 130 minutes of Limit-time F-Sensor error In case any other button is pressed during SILENT Mode Door opened time is more than 30 seconds during the mode.
If the mode is finished by , and , F/R-Fan Delay time is set to 5 minutes, and prevention of SILENT Restart time is set to 40 minutes.
5. When the mode is finished all the electric devices and C-LEDs return to normal [previous] state.
6. Pre-cool continues after SILENT Mode.
7. Q.F and Q.R continue after SILENT Mode for the rest time.
12
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