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Service Manual

RefrigeratorModel:FR-540NT

DAEWOO ELECTRONICS CO., LTD.

S/M No. : FR540NT010

1. SPECIFICATION

MODEL NAME FR-540NT

RefirgerantR12 200g

R134a 170g

Cooling System Fan Cooling Convection

Refrigeration System Air Forced Convection

Defrost System Fin Evaporator Forced

Defrost Operation Automatic Start & Stop

Cold Control Adjustable Button

Capacity

Freezer 122

Refrigerator 332

Total 454

ExternalDimension

Height 1788mm

Width 768mm

Depth 718mm

Net Weight 89Kg

2. EXTERNAL VIEW

3

760

31.5

595

770

1422.5

700

53

3

770

568

11

1066

1768

121

712 2424

136

1015

511

22

24

60

760

3. WIRE DIAGRAM

4

F-SENSOR

D-SENSOR

R1-SENSOR

OR X 2

BL X 2

WH

GY

R-F/M

COMMON

D-HTRCOMP

DR S/W

F-F/M

HARNESS14PIN

BL X 2

GY

X 2

VT BK

BK

BL

YW

BK

WHRDBR

RD

WHD

EFRO

STH

EATE

R

GY

TEMPFUSE BL

BK X 4

FM

FMF-F/M

R-F/M

RD

BK

DR S/W

2 1 3 4

BK

COMPRESSOR

BK

P-RELAY1 2

43

BR

L/BL

GN/YW

M A

PLUG

RD

R ROOM LAMP

BLBL YW

YW

RD F RO

OM

LAM

P

YW

F-PCB

M-PCB

4. NAME OF PARTS

5

1. FR-540N

1

2345

678

9

10

11

1213

1415

17

18

19

20

21

16

1 Freezer Lamp2 Freezer Shelf3 Case Icing4 Guide Icing5 Ice Box6 Chilled Door7 Chilled Case8 Deodorant9 Refrigerator Side Louver10 Refrigerator Shelf11 Cover Cubic Duct12 Crisper Cover13 Box Vegetable *L14 Front Grille15 Adjustable Foot16 Box Vegetable *R17 Freezer Pocket18 Pocket(A)19 Egg Case20 Multi Pocket21 Pocket(B)

2. FR-540NT

1

2345

678

9

10

11

1213

1415

17

18

19

20

21

16

1 Freezer Lamp2 Freezer Shelf3 Case Icing4 Guide Icing5 Ice Box6 Chilled Door7 Chilled Case8 Deodorant9 Refrigerator Side Louver10 Refrigerator Shelf11 Cover Cubic Duct12 Crisper Cover13 Box Vegetable *L14 Front Grille15 Adjustable Foot16 Box Vegetable *R17 Freezer Pocket18 Pocket(A)19 Egg Case20 Multi Pocket21 Pocket(B)

6

2. AIR FLOW DIAGRAM FR-540NT

-19ûC

-19ûC

-1~1ûC

-19ûC

1~3ûC

1~3ûC

3~5ûC

3~6ûC

Freezer pocketPlease don't put long term storingitems such as ice cream etc.It might be melted because ofopening the door frequently.

Inlet of cooling airIt should not be blocked with foodetc. as it is the inlet where coolingair returns.

Chilled roomIt is good for the storage of fishesand meats.

Refrigerator pocketIt is good for the storage of beerand beverage etc.

CrisperIt is suitable to store vegetable andfruit.The moisture panel which isattached to the cover maintains thehumidity properly.Vegetable and fruit would be betterto be packed with clean wrap foils.

Multiple outlet of cooling airPlease don't put in vegetableetc, which contain moisture. It might be frozen because oflow temperature.

Freezer Please don't put bottlessuch as beer, beverage etc. It might be brokenbecause of freezing.

6. REFRIGERANT CYCLE DIAGRAM

7

FIN CROSS

EVA

SUC-PIPE

MA

IN C

API

TU

B.

ACCUMHOT PIPE

DRYER

COMP

AUX-HOT PIPE

AU

X-H

OT

PIPE

BAC

K P

LATE

PIP

E

COMPRESSOR

AUXICON

PIPE

HOT

PIPE

AUXIHOT

PIPE

BACK

PLATE

PIPE

DRYER

CAPI

TUBE

EVAPORATOR

ACCUMULATOR

SUC

PIPE

COOLING PIPE

7. MACHINE ROOM VIEW AND PART LIST

8

13

6

5

8

21

16

19

15

18

17

1 2 3 4 14

22 10

9

12

20

11

7

NO PART NAME NO PART NAME NO PART NAME

1 BASE COMPRESSOR 9 DRYER 17 BIND WIRE

2 COMPRESSOR 10 PIPE CON (SUC) 18 PLUG POWER AS

3 ABSORBER COMPRESSOR 11 VIBRATIONPROOF GUM 19 SCREW MACHINE

4 WASHER COMP. *T 12 PIPE CON (AUX) 20 PIPE CON (HOT)

5 SWITCH P-RELAY AS 13 HOSE DRAIN (B) 21 TAPE OPP

6 BAND RELAY 14 VIBRATIONPROOF MASS 22 PIPE CON (P.A)

7 TAPE COTTON 15 SCREW TAPPING

8 PIPE SERVICE 16 COVER CONNECTOR

9

8. MAIN COMPONENTS

1. COMPRESSOR

2. RELAY ASSEMBLY

3. RUNNING CAPACITOR

Refrigerant R12

Voltage 100V/50,60Hz 110V/60Hz 115, 120V/60Hz 127V/60Hz 220V/50Hz 220V/60Hz 230V/50Hz 240V/50Hz

Comp. model X BL25YE-3 BL25YE-1 X PL28YE-6 PL25YE-4 PL28YE-6

Part code X 3952125C30 3952125C10 X 3956128C60 3956128C40 3956128C60

Strating type X CSR CSR X RSCR RSCR RSCR

Refrigerant R134a


Comp. model X HBL25YG-3 HBL25YE-1 X HSL27YE-5 X HSL27YE-5

Part code X 3952125L3A X 3954127L50 X

Strating type X CSR CSR X RSIR X RSIR

Refrigerant R12


Relay model X 419RHBYY-52 427THBYY-52 X 213THBYY-52 197SHBYY-52 X 213THBYY-52

Part code X 3018105673 3018105690 X 3018105651 3018104102 X 3018105651

Refrigerant R134a


Relay model X 445RHBZZ-52 445RHBZZ-52 X 276THBYY-52 X 276THBYY-52

Part code X 3018101601 3018101600 X 3018105031 X 3018109901 3018105031

Refrigerant R12Voltage 100V/50,60Hz 110V/60Hz 115, 120V/60Hz 127V/60Hz 220V/50Hz 220V/60Hz 230V/50Hz 240V/50HzSpec. X 300V/7µF X 350V/5µF X 350V/5µF

Part code X 3816800400 X 400EL15110 X 400EL15110

Refrigerant R134aVoltage 100V/50,60Hz 110V/60Hz 115, 120V/60Hz 127V/60Hz 220V/50Hz 220V/60Hz 230V/50Hz 240V/50HzSpec. X 300V/7µF X X X X X

Part code X 3816800400 X X X X X

10

4. STARTING CAPACITOR

5. F-FAN MOTOR

6. R-FAN MOTOR

7. 1) FR-540N

DEFROST HEATER FR-540NT

8. LAMP ASSEMBLY

Refrigerant R134a


Spec. X 200V/100µF X X X 290V/50uF X

Part code X 401RD35050 X X X 4124G62052 X

Refrigerant R12, R134a


Spec. X 3211DWBFN 3211DWBFN X 3211DWBFR 3211DWBFJ 3211DWBFT

Part code X 3011800840 3010027140 X 3011800930 3015902500 3011801020



Spec. X 3211DWBFM 3211DWBFU X 3211DWBFQ 3211DWBFE 3211DWBFS

Part code X 3011800850 3011801000 X 3010027220 3015902600 3011801030



Spec. X 148W X 148W

Part code X 3012801300 X 3012801000



Spec. X 148W X 148W X X 148W

Part code X 3012801300 X 3012801600 X X 3012801600



Spec. X 15W X X 15W

Part code X 3013600010 X X 3013600000

Refrigerant R12


Spec. X 200V/100µF X X X X X

Part code X 401RD35050 X X X X X

11

4. STARTING CAPACITOR

5. F-FAN MOTOR

6. R-FAN MOTOR

7. 1) FR-540N

DEFROST HEATER FR-540NT

8. LAMP ASSEMBLY

Refrigerant R134a


Spec. X 200V/100µF X X X 290V/50uF X

Part code X 401RD35050 X X X 4124G62052 X



Spec. X 3211DWBFN 3211DWBFN X 3211DWBFR 3211DWBFJ 3211DWBFT

Part code X 3011800840 3010027140 X 3011800930 3015902500 3011801020



Spec. X 3211DWBFM 3211DWBFU X 3211DWBFQ 3211DWBFE 3211DWBFS

Part code X 3011800850 3011801000 X 3010027220 3015902600 3011801030



Spec. X 148W X 148W

Part code X 3012801300 X 3012801000



Spec. X 148W X 148W X X 148W

Part code X 3012801300 X 3012801600 X X 3012801600



Spec. X 15W X X 15W

Part code X 3013600010 X X 3013600000

Refrigerant R12


Spec. X 200V/100µF X X X X X

Part code X 401RD35050 X X X X X

11

9.

1) FR-540N

PCB TRANSFORMER FR-540NT

10.

1) FR-540N

MAIN PCB ASSEMBLY FR-540NT

11. DRYER



Part code X 5EPK057700 X X 5EPK057609 5EPK042000 5EPK057030 5EPK057630



Part code X 5EPK057613 X X 5EPK057612 X X 5EPK048030



Spec. X N803 X X N803

Part code X 3014303620 X X 3014302540



Spec. X N804 X X N804 X X N804

Part code X 3014304210 X X 3014304120 X X 3014304120

Refrigerant R12 R134a

Spec. 10 g 15 g

Part code 3016800103 3016801100

13

9.

1) FR-540N

PCB TRANSFORMER FR-540NT

10.

1) FR-540N

MAIN PCB ASSEMBLY FR-540NT

11. DRYER



Part code X 5EPK057700 X X 5EPK057609 5EPK042000 5EPK057030 5EPK057630



Part code X 5EPK057613 X X 5EPK057612 X X 5EPK048030



Spec. X N803 X X N803

Part code X 3014303620 X X 3014302540



Spec. X N804 X X N804 X X N804

Part code X 3014304210 X X 3014304120 X X 3014304120


Spec. 10 g 15 g

Part code 3016800103 3016801100

14

POWER CORD SPECIFICATION

NO SHAPE OF POWER CODE PART CODE DESCRIPTION REMARK

1 3011315000 CP-2PIN FOR EUROPEAN COUNTRY

2 401RA17200 CP-2PIN FOR OTHER COUNTRY

3 4006D17101 KP-30 FOR AMERICA

4 401PD17101 KP-211 FOR JAPAN & TAIWAN

5 3011300801 BP-3PIN

6 3011303010 #267 FOR CHILE

7 3011315310 FOR ISRAEL

8 3011303050 BS-1363A FOR U.K, MIDDLE ASIASINGAPORE & MALAYSIA

9 3011301200 KP-551/550 FOR CHINA & AUSTRALIA

* Upper power cord’s part code is only for lead wire, without any kinds of terminal or housing.

15

9.

1. FR-540N

1. ASSEMBLY URETHAN FREEZER DOOR

2. ASSEMBLY URETHAN REFRIGERATOR DOOR


Key type Dull lamina High glossyNormal PCM

High glossy Dull lamina High glossyNormal PCM

High glossy

sheet lamina sheet bright PCM sheet lamina sheet bright PCM

Part code X PFDT1UJ110 X X X PFDT1UJ115 X X


Color type Dull lamina High glossyNormal PCM


High glossy


Part code X PFDU2UJ110 X X X PFDU2UJ115 X X

2. DOOR COLOR SPECIFICATION FR-540NT

1. ASSEMBLY URETHAN FREEZER DOOR

2. ASSEMBLY URETHAN REFRIGERATOR DOOR




High glossy


Part code X PFDT1UJ070 X X X PFDT1UJ075 X X




High glossy


Part code X PFDU2UJ070 X X X PFDU2UJ075 X X

16

COLOR TABLE

1. PCM type

NO COLOR CHIP COLOR NAME

1 P/WITH (WH069)

2 '94 L/GRAY (GY158)

3 '95 L/GRAY (GY259)

4 '94 M/GRAY (GY331)

5 '95 M/GRAY (GY335)

6 '97 M/GRAY (GY267)

7 M. D/GRAY (GY750)

8 N/BLUE (BL718)

9 MINT GREEN (GN206)

10 '97 BEIGE (BE215)

17

2. Lamina sheet type

NO COLOR CHIP COLOR NAME

1 P/WITH (WH069)

2 '94 L/GRAY (GY158)

3 '95 L/GRAY (GY259)

4 '94 M/GRAY (GY331)

5 '95 M/GRAY (GY335)

6 '97 M/GRAY (GY267)

7 M. D/GRAY (GY750)

8 N/BLUE (BL718)

9 MINT GREEN (GN206)

10 S/GOLD

11 G/GREEN

18

2. FR-540NT1.Exploded view

19

2. Parts list

NO PART CODE PART NAME DESCRIPTION QUANTITY REMARK

1 CAB URT AS 1

2 3012900600 HINGE *U AS 1

3 3012900620 HINGE *M AS D/C 1

4 3012900500 HINGE *T AS 1

5 3011405400 COVER HINGE *T PP 1

6 3018100010 DOOR S/W 2 BUTTON 4PIN 1

7 3010010900 FOOT ADJ AS 2

8 M-PCB AS 1 REFER TO # 11

9 DOWN TRANS 1 REFER TO # 11

10 CAPACITOR 1 REFER TO # 9

11 3010504200 BOX M-PCB AS 1

11-1 3011410000 COVER M-PCB BOX AS 1

12 P-RELAY AS 1 REFER TO # 9

14 COMPRESSOR 1 REFER TO # 9

15 3010100201 ABSORBER COMP NR H=40 4

16 4019H09030 WASHER SPECL SWRH 4

17 3010508400 ICE BOX AS 1

18 3011102300 CASE CHILD GPPS T3.5 1

19 3010302512 BASE COMP AS 1

20 3014502304 PLATE AUX CON AS 1

21 3010604802 BRACKT ADJFT *L 1

22 3010604902 BRACKT ADJFT *R 1

23 4010G30661 BOILD PP T1.3 1

24 3011400600 COVER CAB-BRAK 1

25 3010507410 BOX VEGTB *R GPPS 1

26 3011705620 CHILD DR SAN 1

27 3017000701 EVAPORATIOR AS 1

28 3017200010 FUSE TEMP AS SW-103T 77˚C 10A 1

29 3014801201 SENSOR F-D AS PTC-KB38-FD6 AB TYPE 1

30 GLASS TUBE HTR AS 1 REFER TO # 10

31 F FAN MOTOR AS 1

31-1 MOTOR FAN F 1 REFER TO # 10

31-2 3011800400 FAN ABS Ø 110 1

32 R FAN MOTOR AS 1

32-1 3011800400 MOTOR FAN R 1 REFER TO # 10

32-2 3011800400 FAN ABS Ø 110 1

33 3013312910 INSU F LOUVER AS F-PS 1

34 3018904000 LOUVER F AS 1

35 3011406600 ASSY F M/F DUCT 1

35-1 LAMP AS 1 REFER TO # 10

36 3017806800 SHELF R SAN 2

20

NO PART CODE PART NAME DESCRIPTION QUANTITY REMARK

37 3011420010 COVER VEGTB BOX AS CV+F+KNOB+NAMP 1

38 3017804700 SHADE F 1

40 3010029791 CHILD DUCT AS 1

41 3014504600 PLT VEGTB BOX-DV 1

42 3018901902 LOUVER R SIDE *L AS ABS+CERAMIC 1

42-1 3018901911 LOUVER R SIDE *R AS ABS+CERAMIC 1

43 3014801001 R1 SENSOR AS NBM-K43-D12 PBN-43 1

45 3010507400 BOX VEGTB *L GPPS 1

46 3012400502 GRILLE PP 1

47 F DOOR URT AS 1 REFER TO # 13

48 3017404300 LINER *F DOOR ABS 1.4T 1

49 3012303000 GASKET F DOOR PVC-S 1

50 3019002100 POCKET F *T GPPS T3.0 1

50-1 3019002200 POCKET F*U GPPS T3.0 1

51 3017901311 SOCKET R LAMP AS AC 250V 1A 2

51-1 LAMP AS 2 REFER TO # 10

52 3014201420 CONTROL PANEL *F AS 1

52-1 3014304220 F-PCB AS 1

53 R DOOR URT AS 1 REFER TO # 13

54 3017404400 LINER R DOOR ABS 1.4T 1

55 3012303100 GASKET R DOOR PVC-S 1

56 3019002000 POCKET MULTI GPPS T3.0 2

57 3019000200 POCKET R L SAN 1

58 3015501200 R WINDOW SAN 1

59 3019002600 POCKET BOTTLE *B GPPS T3.0 1

60 3011103900 CASE EGG GP 2

61 3017804700 F SHELF 1

62 3012500510 GUIDE ICING CASE SAN HF-5661 1

63 3011102100 CASE ICING PP 2

64 CORD POWER AS 1 REFER TO # 12

65 DRYER ASS 1 REFER TO # 11

21

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION

• When the FUZZY button is pressed, both“BAR LED” are blinking in a row

• “FUZZY” LED comes “ON”.• When the FUZZY button is pressed again,

FUZZY function is canceled.• LED of freezing and refrigerating go “OFF”.

• When the quick freezing button is pressed,BAR LED of freezing is blinked 3 times in arow.

• LED of freezing goes off.• “Quick” LED comes “ON”.

1. One time1) Freezer room temperature control function. 2) Adjust temperature with ,

2. Two times1) Refrigerature room temperature control function2) Adjust temperature with ,

3. Three times1) HOUR control function.2) Adjust hour with ,

4. Four times1) MINUTE control function.2) Adjust minute with ,

5. Five times1) Adjust finished.2) Retrun to normal status.

• When the quick refrigeration button ispressed, BAR LED of freezing is blinked 3times in a row.

• LED of freezing goes off.• “Quick” LED comes “ON”.

ELECTRONIC FUNCTION FR-540NT

1) How to use the panel

22

NO.Control Control

Contents RemarkFunction Objects

1 Clook LEDfunction

2 Freezer COMP.temperature F-fancontrol LED

3 fridge COMP.temperature R-fancontrol LED

1. The time is set at 12:00 in initial operation

2. Time setting

1) When the temperature/time set button is pressed 3 times,Hour blinks.

2) Adjust HOUR with , button.

3) When the temperature/time set button is pressed 4 times,MIN blinks

4) Adjust MIN with , button.

1. When press the temperature/time control button, freezertemperature range blinks. Then can control freezer temperturewith , button.

2. COMP. on/off temperature(Tempterature ûC/Resistance k? )

3. Bar LED is not related with on/off point.

4. If push the temperature/time control button in fuzzy mode,then fuzzy mode is canceled.

1. When press the temperature/time control button, fridgetemperature range blinks. Then can control fridge temperaturewith , button.

2. Main sensor of fridge room is R1-sensor.

3. R2-sensor is used for preventing low cooling.

4. R-fan on/off temperature(Temperature ûCResistance k? )

2) Function table

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION

FUZZY SURROUND CLEAN

FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION


FRZ. REF.

21 E.F E.R 1

2

Q.F3 3

Q.R

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION


FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R

COMP. on

COMP. off

E.F

-17.5/19.4

-22.5/25.7

1 (low)

-18.5/20.6

-23.5/27.2

2 (mid)

-19.5/21.7

-24.5/28.8

3 (high)

-21.5/24.3

-26.5/32.3

R-fan on

R-fan off

E.R

1.35/28.4

1.0/28.7

1 (low)

0.35/29.7

0.0/30.0

2 (mid)

-0.65/30.9

-1.0/31.4

3 (high)

-2.65/33.8

-3.0/34.3

23

NO.Control Control


4 Quick COMP.freezing F-fan

LED

5 Quick COMP.fidge R-fan

LED

5. When the low cooling is detected, COMP. goes on regardlessof F-sensor.

6. When the fridge temperature goes R-fan off point, COMP. iscontrolled by F-sensor and R-fan goes off.

7. Low cooling is detected by R1-sensor or R2-sensor, itscancellation can be done by R1-sensor only.

8. Bar LED is not related with on/off point.

9. If push the temperature/time control button in fuzzy mode,then fuzzy mode is canceled.

1. When the quick freezing button is pressed, it becomes quickfreezing mode.

2. The quick freezing mode works for 150 min.

3. The quick freezing time shows for 5 sec.

4. COMP. and F-fan go on regardless of F-sensor during the quickfreezing mode.

5. The quick freezing mode is operative even in fuzzy mode.

1. When the quick fridge button is pressed, it becomes quickfridge mode.

2. The quick fridge mode works for 40 min.

3. The quick fridge time shows for 5 sec.

4. COMP. and R-fan are on until R1-sensor detects over coolingtemperature (-7˚C).

5. The quick fridge mode is operative even in fuzzy mode.

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION


FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION


FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R

low ON pointlow OFF point

High ON pointHigh OFF point

Overcoolingpoint

Quick START Quick ENDCOMP is

controlled by R1-sensor

Refrigerating room "High"

operation

24

NO.Control Control


6 Fuzzy COMP.R-fanF-fanLED

7 Determinationdefrost

1. When press the fuzzy button, predictable cooling of freezerand fridge room is started.

2. How to predict freezer and fridge room temperature.

1) Checking accumulated door open time every 2 hours.

2) Decision of open door frequency is as follow• Above 30 sec. : Door is opened frequently. (1)• Below 30 sec. : Door is not opened frequently. (0)

3) Decision of data is for 8 days.• If the accumulated open door time of 30 sec. is more

than 6 times for 8 days, then data decision will be high.• If RT-sensor<14˚C, it is operated mid instead of high.

4) Example

1. Necessary condition of determination defrost

1) COMP. operation accumulation time (6, 9, 12, 15 hours)

2) COMP. operation ratio (COMP. accumulation time is dividedby 3 hours)

3) Door open accumulation time.

4) Total time (COMP. on time+COMP. off time) is 60 hours.

5) Outside temperature is above 35˚C.

6) Various error• D-sensor error• F-sensor error• RT-sensor error• Door switch error

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION


FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R

Hour 2 4 6 8 10 12 14 16 18 20 22 24Date

1 1 0 1 1 1 0 0 0 1 1 0 1

2 0 0 1 1 1 0 0 0 0 1 0 1

3 0 0 1 1 1 0 0 1 1 0 1 0

4 0 1 1 1 0 1 1 1 1 1 0 0

5 0 0 0 0 1 0 0 1 1 1 1 0

6 1 0 1 1 0 0 0 1 0 1 0 1

7 0 1 1 1 0 0 1 1 1 0 1 0

8 1 0 1 1 1 0 0 1 1 1 1 1

Frequency 3 2 7 7 5 1 2 6 6 6 4 4

Data decision M M H H M M M H H H M M

25

NO.Control Control


8 Defrost COMP.mode F-fan

R-fanHeater

2. Description

1) It enters into the defrost mode at 15 hours unconditionally.

2) It enters into the defrost mode at 6, 9, 12 hoursconditionally.

3) Flow chart of determination defrost mode.

1. Pre-cool step

1) Time : 50 min.

2) COMP. and F-fan are on.

3) R-fan controls normally with temperature 1˚C higher thanthe off point which controlles R-fan in normal status.

Start 3 6 9 12 15(COMP. on accumulation time)

Entering into defrosting mode

YES

YES

YES

NO

YES

YES

YES

YES

Start

End

TOTALDoes the time elapse for 3 hours?

NO

COMPDoes the operation time elapse for 15 hours?

NO

NO


YES


NO

Are various errors occurred?

NO

Is RT greater than 35˚C?

NO

Is the COMP operation rate greater than 80%?

NO

Does the DOOR OPEN accumulationtime elapse for 10 minutes?

26

NO.Control Control


9 Testing COMP.device F-fan

R-fanHeaterLED

4) If the F-sensor -27˚C even the time elapsed is less than 50min., the Pre-cool step goes off.

2. D-heater+R-fan defrost

1) D-heater and R-fan are on.

2) When D-sensor is higher than 2˚C, R-fan goes off, and D-heater stays on contionously.

3) When D-sensor is higher than 10˚C, D-heater goes off.

4) Total limit time is 88 min.

5) If D-sensor is error, R-fan goes off and D-heater is on for 35min.

3. Pause

1) Time : 4 min.

2) All devices are off.

4. F-fan delay

1) Time : 8 min.

2) Only COMP. and R-fan are on.

5. R-fan delay

1) Time : 10 min.

2) Only COMP. and F-fan are on.

6. Output control of each step and time limit.

1. If press SW01 on M-PCB, the electric devices become on inorder as follows.

COMP. Heater Pause F-fan R-fan COMP.

2. At this time, all the custom LED become on.

3. Automatic return time is 1 min.

Heater Heater F-fan R-fanPre-cool +R-fan defrost pause delay delay

defrost

COMP. on off off off on on

F-fan on off off off off on

R-fan controlled on off off on off

Heater off on on off off off

Time 1) 80 min.

limit 50 min. 2) 35 min. in case of 4 min. 8 min. 10 min.D-sensor error

27

NO.Control Control


10 Electric Door S/Wdevice COMP.delay F-fan

R-fan

11 Demo COMP.function R-fan

F-fanDoor S/W

12 Delivery COMP.function F-fan

R-fanLED

1. F-fan on or off time is delayed, when COMP. is on or off.

2. F-fan and R-fan on or off time is delayed, when door switch ison or off.

1. If CN10 terminal on M-PCB is shorted, all electric devices gooff except F-fan, R-fan.

2. Fan control

3. F-PCB indicates the normal status and fuzzy status alternatelyin 15 sec. intervals.

1. If press the quick freezing and quick refrigerating button for 3sec. after power on, then delivery function will start.

1MIN. 1MIN.

0.5SEC

OPEN

0.5SEC

ON

ON

COMP

F-FANOFF

OFF

CLOSE

ON

ON

DOOR S/W

OFF F-FAN

OFF R-FAN

Normal status Demo status

F-fan : off F-fan : onDoor open

R-fan : off R-fan : on

F-fan : on F-fan : offDoor close

R-fan : on R-fan : off

Normal status

Fuzzy status


FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R


FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION


FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R

28

NO.Control Control


13 Power COMP.failure Clockback-upfunction

14 COMP. COMP.restartprevent

15 Buzzer Buzzerfunction

16 First COMP.defrost F-fan

R-fanHeater

17 Forced COMP.defrost F-fan

R-fanHeater

18 AdjustR1-sensoroff point

2. The electric devices are off for 2 hours in delivery function.

3. The custom LED is on normally.

1. M-PCB reserves all functions for 3 hours after power failure.

2. Time running in power failure is as follow.

1) Clock

2) Preventing COMP. restarting

3) Pause time during defrosting

1. After COMP. is off, the COMP. is not on even though the F-sensor is at on point for 6 min.

1. Alarm buzzes 3 sec. after initial power on.

2. Alarm buzzes whenever each switch in F-PCB is pressed.

3. If the door is opened for more than 1 min., chirpy sound alarmbuzzes.

4. If adjust temperature, the fuzzy button will be not operativeand the buzzer will be off.

1. When power is loaded for the first time, it enters into defrostmode if D-sensor 3.5˚C. (Defrost mode starts from Pre-coolstep.)

1. Press the fuzzy button 5 times, when press temperature/timecontrol button. After that can enter the forced defrost mode.

2. Forced defrost mode.

1) The Pre-cool step is omitted.

2) Start from heater+R-fan defrost.

3. After forced defrost, the normal defrost is enabled in 15 hoursof accumulated COMP. on time.

1. When the temperature in fridge room is low (Low temperatureeven though R-fan and COMP. are operating properly),following functions are operating for easy after service.

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION


FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R

29

NO.Control Control


19 Error LEDdisplay R-fan

1) R1 : Off point determination innormal operation

R2 : Decreases off pointdetermination

J1 : If remove J1, the off point willbe decreased.

2) Resistance valueR1 : 31. 4 kΩR2 : 2.15 kΩ

3) Off point temperature

1. Press the fuzzy button 3 times, when press the quick freezingand the quick refrigerating button. After that error mode.

2. If press the temperature/time control button, then will changethe status on custom LED.

R1-sensor temperature F-sensor temperature D-sensortemperature Error code (If there is no error, then error codewill not occur.)

3. All error code will be reset, if they become normal.

4. Error code is refered to 3) Self-diagnosis table.

J1R2

R1

R1-SENSOR

Off point temperature

J1 shorted -1.0˚C

J1 opened -2.5˚C

FUZZYTEMP

TIME SETQUICK

FREEZINGQUICK

REFRIGERATION


FRZ. REF.

Q.F3

21 E.F E.R 1

23

Q.R

30

ErrorDefect function Check method

mode

F 1 F-sensor

R 1 R1-sensor

R 2 R2-sensor

D 1 D-sensor

RT RT-sensor

D 0 Door switch

C 1 Cooling cycle (check after first defrost mode)

F 3 Heater

3) Self-diagnosis table

If both R1 and R2-sensor are out of order, then RT-sensor control R-fan.- Room temperature ≤ 14˚C : R-fan is off- Room temperature ≥ 26˚C : R-fan is on for 15 minutes, R-fan is off for 5 minutes- 14˚C < Room temperature < 26˚C : R-fan is on for 2 minutes, R-fan is off for 18 minutes

- Compressor & F-fan is on for 24 minutes.

- Compressor & F-fan is off for 16 minutes.

- Regarded by R2-sensor.

- Detecting weak cooling is impossible.

- Heater is on only for 35 minutes.

- Natural defrost for 80 minutes.

4) Circuit and wiring diagram

31

18 17 16 15 14 13 12 11 1001 02 03 04 05 06 07 08 GND

11 12 13 14 15 16 17 18 VCC1 2 3 4 5 6 7 8 9

16 15 14 13 12 11 10 9

COM 04 14HEAT SINK

& GND

HEAT SINK& GND

13 03 COM

1 2 3 4 5 6 7 8VCC 01 11 12 02 VCC

16 15 14 13 12 11 10 901 02 03 04 05 06 07 COM

11 12 13 14 15 16 17 GND1 2 3 4 5 6 7 8

7805

7806

7812

R05

R07

R06

R01

R04

R02

R03

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

IC04

IC05

1 2 3 4 5 6 7

C02

0.1 µFC01IC01

TD62308BPIC02

TD62308BP

D01 D04 D02 D03

X4

X6

X7 X5

X2X1

X0

X3

SW1 SW4 SW2 SW3

Set FR Fuzzy

TC

4051

BA

R11

R10

R09

7805

6 3 14 11 9 16 1 8

7 2 15 10 4 5 12 13

14 3 6 11 9 16 1 8

15 2 7 10 4 5 12 13

a1

b1

c1

d1

e1

f1

g1

a2

b2

c2

d2

e2

f2

g2

a3

b3

c3

d3

e3

f3

g3

F E.F

R Cold

R

F Cold

E.R

Fuzzy

Q.R

F Warm

R Mid

R Q.F

F Mid

R Warm

:

Q.F

BAR

BAR

BAR BAR

BAR

BAR WarmBAR

MidBAR

R Mid

R Warm

F Q.F

F

R

R

:

8

9

10

11

12

13

14

Surround

RE.R

FE.FBAR

RE.RBAR

RE.R

Deodorant

FCold

CO

MP

D-H

TR

C-F

AN

F-F

AN

R-F

AN

5V

CN01 CN08

IC03

3

4

5

6

2

1

7

8

9

10

11

12

13

R01

R02

R03

R05

CC12

W-

BR

WB

BR

W

W-R

GR

G

V

B

Y

O

R

BK

R06

R07

R08

R09

R10

R11

R12

R13

9

10

11

12

13

14

15

16

17

40

41

18

19

20

21

4

3

2

1

DATA

DATA

DATA

DATA

DATA

DATA

DATA

DATA

10

17

16

15

14

13

12

11

18

9

2

3

4

5

6

7

8

1

SCAN A

SCAN B

SCAN C

KEY INPUT

5

6

7

8R04

VDD

F-S

D-S

R1-S

R2-S

RT-S

A/D 2

A/D 1

A/D 0

VAREF

FREQCHECK

BUZZERCOMPHTR

C-FANF-FANR-FAN

DOOR S/WCHECK

TEST

XTIN(32.768KHz)

XTOUT

RESET

XIN(8MHz)

XOUT

VSS

LEDTEST KEY

KEY

DEMO S/W

POWER OFFCHECK

TMP87CH46N

BZI34

38

37

36

35

33

32

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

IC07

R46

R45

CN05

R49750ohm IC08

IC044

3

PC817

1

2

M-PCB42

30

29

28

26

CC15

CC19

CC20

CC21

CC22

CE11

CE04

CE05

R39

R36

CE06

CE08

R17

R40

+

+

+

+

+

+

R4125.7K

R3731.4K

Jump optionR472.15KR38

30.1K

CC21

R34

CE07+ R22

29.4KRT-SENSOR

R2215K

CC17

0.1uF

BD1

CE01

CC01IC03

CC06 D4 IN4002

5.4V

R26

CE030.1F 5.5V

100 OHM 1N4002

CC04

IC06D1 CC02

IC05

5V

CC05 CC03

39

25 R16

R2323.2K

R2431.4K

CC24

R1524

CC25

23

22

CC26

CC27

R14

R1941.1K

R1831.4K

R2119.5K

R2030.1K

CE09

31 R25

4.7KC09

R27R44

R48

4.7K

ULN

2004

A

CC18

D3

1N5399

1N4002

D2

R43

47KR42

47K

SN3

23

11

9

VAR2

RY3

RY2

VE12HM5K

VE12HM5K

F-FAN

C-FAN

70+/-5C

FU

SE 1

.5A

G

FUSETEMP

DEFORSTHEATER

CN03

VS-12MB

RY1

BR

BR

BR

BR

R

S/C

R/C

CN02

BK

Y

B

R-FAN

V

BK

CN01

S/WDOOR

CN04

BL

GR

3 1

BK

WH

ROOM

BK

R FLAMP

BL 4 RED 2

P-RELAY

COMP

SN1

SN2

VAR1

FUSE 1.5A

PCB TRANS220V ACPOWER CORD

BK WH

YWGR

WH

GR

CN07

BL

CN06

OR F-SENSOR

D-SENSOR

R1-SENSOR

R2-SENSOR

+

+

RE1

RE2

CE10R13 +

CE021000µF

+

S8053

CC17

20PF

CC16

20PFIC02

CC08

R31

CC14

R33 R30

CC13

R28

CC11

CC10

CN10

JUMPER

R29

SW02

R32

SW01

TD

6278

3AP

CONTROL INPUTS* TD62783AP (DARLINGTON DRIVER)TC4051BP(MULTIPLEX)

* TD62308BP (LOW INPUT ACTIVE 1.5A DRIVER)

* TEST JIG

* ULN2004A

INHIBITLLLLLLLLH

ON CHANNEL0:13 PIN1:14 PIN2:15 PIN3:12 PIN4:1 PIN5:5 PIN6:2 PIN7:4 PINDON'T CARE

CLLLLHHHH

*

BLLHHLLHH

*

ALHLHLHLH

*

R23 R24 ˚Copen jump 3˚C

OK OK 5˚Cjump jump 7˚C

F-PCB

service manual - cld.pt · pdf filecomp. model x hbl25yg-3 hbl25ye-1 x hsl27ye-5 x hsl27ye-5...

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