Samsung Refrigerator SR 61KTC User Guide

Model: SR-61KTC/SR-61NMC

SR-65KTC/SR-65NMC

SR-69NMC

REFRIGERATOR

CONTENTS

1. Product Specifications

2. Safety Warning & Caution

3. Electrical part specifications & standard

4. Electric diagram

5. Air Circulation route

6. Function & Vsing method

7. Temperature control & other Functions

8. Circuit Operating theory

9. Failure diagnosis & repairment

10. Dissembie & Assemble drowing and part LIST 53

11. Disassemble & Assemble Method

12. Packing

13. Main componets specification

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2.Safety precautions and warnings

xRead all instructions before using this product and keep to the instructions

in order to prevent danger or property damage.

Warning/Caution

Description of symbols

IN DICATES PROHIBITION

Indicates that a

danger of death

or serious injury

exists.

DO NOT DISASSEMBLE

Warning

Caution

DO NOT CONTANT

ADHERE THE INSTRUCTION STRICTLY

Indicates that a risk

of personal injury

or material damage

exists.

ONPLUP FROM THE ELECTRICAL

AVOLD

EARTH THE APPLIANCE TO AVOID THE

RISK OF AN ELECTRIC SHOCC

Warning

Do not insert the power cables.

Do not disassemble to

repair or alter.

Do not bend the power cable with

excessive force or do not have the

power cord pressed by heavy article.

●May cause abnormal

generation of heat or fire.

● It may cause fire or abnormal

operation which leads to injury.

● May cause fire.

Do not

disassemble

Prohibition

Check the operating environment.

Make sure of the earth.

Pull the power plug out to exchange

the interior lampof the refrigerator.

●Deterioration of electric parts insulation

● If power doesn’t ground, it will

may cause electric shock or fire.

cause breakdown and electric shock.

● It may cause electric shock.

Unplug

Earth

25cm

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Caution

Do not store pharmaceutical

products, scientific materials,

etc., in the refrigerator.

Do not put bottles or kinds of

glass in the freezer.

Do not store narrow and lengthy

bottles or foods in a small multi-

purpose room.

●

Freezing of the contents may inflict a

wound.

●The products which temperature control

●

It may hurt you when refrigerator door

should not be stored in the refrigerator.

open and close.

Prohibition

When replacing electric

On repair, make sure that the wires

comporents, be sure to use rates such as harness are tightly

comporents.

bundled.

Do not store articles on the

Refrigeration.

●

Opening or closing the door may

●

Check the model, rated voltage, rated

current, operating temperature etc. of

the component.

●

Tghtly bundle wires in order not

to be detached by the external

force and to be wetted.

cause things to fall down, wihch

may inflict a wound.

Prohibition

After repair, check the assembled

state of components.

Check the electrical parts for the

trace of moisture.

On repair, remove completely dust or

other things of housing parts,

harness parts, and check parts.

●It must be in the same assembled state

when compared with the state before

disassembly.

●When the trace of moisture penetration is

detected, replace the patt or try insulation

tapping.

● Cleaning may prevent the possible fire by

tracking or short.

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3. ELECTRIC PARTS STANDARD

STANDARD

ITEM

SR-61/65/69NMC / SR-61/65KTC

220V/50~60Hz

SK190H-L2U

110~115V/60Hz

DK172C-L2U

127V/60Hz

230~240V/50Hz

DK190Q-L2U

DK172P-L2U

MODEL

COMPRESSOR

COOLER

STARTING TYPE

OIL CHARGE

RSCR

Freol α-15(ESTER)

FREEZER

SPLIT FIN TYPE

SPLIT FIN TYPE & TUBE TYPE

REFRIIGERATOR

FORCED AND NATUAL CONUECTION TYPE

MOLECULAR SIEVE XH-9

0.82X2500 4.26Kg/cm²

CONDENSER

DRYER

CAPILLARY TUBE

REFRIGERANT

HFC-134a

OFF(℃)

-23℃

-20℃

-17℃

-1.5℃

2.5℃

OFF(℃)

-24℃

-20℃

-17℃

-1.5℃

1.5℃

ON(℃)

-21℃

-18℃

-15℃

-0.5℃

3.5℃

6.5℃

ON(℃)

-22℃

-18℃

-15℃

-0.5℃

2.5℃

5.5℃

HIGH

FREEZER

MID

LOW

HIGH

MID

REFRIGERATOR

LOW

5.5℃

4.5℃

FIRST CYCLE

4hours±10minute

10hours

20hours

REFRIGERATOR

FREEZER

CYCLE

PAUSE TIME

10minute±2minute

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ITEM

SR-61/65/69NMC / SR-61/65KTC

220V/50~60Hz

502 AT

110~115V/60Hz

127V/60Hz

230~240V/50Hz

F-SENSOR

R-SENSOR

〃

SENSOR

HEATER

F-DEF SENSOR

R-DEF SENSOR

DRAIN HEATER

F DEF HEATER

R DEF HEATER

DID HEATER

13W / 240V

235W / 240V

120W / 240V

10W / 240V

13W / 127V

235W / 127V

120W / 127V

10W / 127V

13W / 220V

13W / 110V

235W / 220V

120W / 110V

10W / 110V

235W / 220V

120W / 220V

10W / 220V

F DEF FUSE

R DEF FUSE

250V 10A 72±4℃

12㎌/ 250VAC

5㎌ / 350VAC

CONDENSER

OPERATION

MODEL

J531QE100M2002

10Ω±20%(SURROUNDING TEM 25℃)

4TM437RHBYY-53

J531Q35E330M385-2

J531Q34E100M350-2

220Ω±20%

STARTING RELAY

330Ω±20%

START

(SURROUNDING TEM 25℃)

(

SURROUNDING TEM 25℃)

4TM265RHBYY-53

4TM314RHBYY-53

MADEL

O/L-PROTELTOR

61℃

69℃

ON TEM

69℃

130℃

OFF TEM

130℃

125℃

SR-61/65/69NMC

240V 50/60Hz

240V 50Hz

220V 50/60Hz

115V 50/60Hz

110V 60Hz

DC TRANS

127V 50/60Hz

127V 60Hz

F-COOLER FAN MOTOR

R-COOLER FAN MOTOR

SR-61 / 65KTC

SR-61/65/69NMC

SR-61 / 65KTC

12V, DC - BLDC , SENSORLESS

127V 60Hz 220V 50~60Hz

12V, DC - BLDC , SENSORLESS

127V 60Hz 220V 50~60Hz

12V, DC - BLDC , SENSORLESS

110 / 130V 15W 240V 15W

130V 30W 240V 25W

230~240v 50Hz

110V 60Hz

SR-61/65/69NMC

SR-61 / 65KTC

CYCLE FAN MOTOR

F-LAMP

R-LAMP

DID DOOR-S/W

SR-61 / 65KTC

250V/0.7A

250V 0.7A

DOOR-S/W

Power cord

SPT-3,125V/7A VCP-2,250V/10A BF-3,250V/10A

EP-2,127V/7A

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4. Electric diagram

4-1. Electronic mode(SR-61KTC,65KTCT)

EMI

FILTER

RED

GRN

RED

BLU

WHT

GRN

RED

BLK

BLU

VLT

EARTHED

CIRCUIT

P.T.C RELAY

BLK

COMP RELAY

SIBLU

VLT

EARTHED

BLK

WHT

ORG

CIRCUIT

VLT

BLK

GRY

OPERATING

COMPERESSOR

BLK

RED

BLK

YEL

BRN

CONDENSER

GRY

ORG

YEL

F-TEM FUSE

BRN

RED

F-DEFROST-HEATER

YEL

RED

GRY

RED

GRY

VLT

SIBLU

BLK

BRN

RED

BLK

R-TEM FUSE

BLK

WHT

RED

WHT

GRY

BLK

BRN

RED

SIBLU

ORG

BRN

RED

SIBLU

ORG

R-DEFROST-HEATER

GRY

RED

W / B

PNK

REFRIGERATOR

FREEZER LAMP

BLU

GRY

W / B

VLT

GRY

WHT

SIBLU

GRY

WHT

SIBLU

PNK

ORG

4-2) SEMI BASIC (SR-61NMC, 65NMC, 69NMC)

GRY

WHT

RED

EARTHED

CIRCUIT

DOOR SWITCH

FREEZER FAN MOTOR

ORG

YEL

RED

ORG

FREEZER FAN MOTOR

YEL

REFRIGERATOR LAMP

BLU

WHT,BLK

PIK

VLT

FREEZER LAMP

BLK

GRY

SIBLU

RED

SIBLU

PIK,BLU

COMP RELAY

OPERATING CONDENSER

SIBLU

BRN

GRY

COMPRTSSOR COOLER MOTOR

RED

F DEFROST-NEATER

F ERM FUSE

RED

BRN

WHT

BRN

WHT

SIBLU

R ERM FUSE

RED

R DEFROST-NEATER

RED

WHT

－7－

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5. Cool Air Circulation

－8－

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6. FUNCTIONS AND DIRECTIONS

6-1. THE OUTER SIZE

840

MODEL

SR-61KTC

1066.5

1096.5

1140.5

580

600

1755.5

1760.5

1810.5

1854.5

761.5

617.5

1479

123

SR-61NMC

SR-65KTC/NMC

SR-69NMC

－9－

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6-2. THE NAME OF EACH PARTS AND DISASSEMBLE METHOD

DOOR GUARD

FREEZER SHELF

●

Push to direction ②

●

①

Up the front of shelf to direction

then pull and

apart to direction②.

CHILLED ROOM SHELF

DID CASE

●

Pull and apart

display part of

door guard.

●

Up and apart

as showed.

●

Pull to the arrow direction

then up and apart at the

locking point.

VEGETABLE/SALAD COVER AND CASE

TEMPERRD GLASS TRAY

●

Upthe cover and apart then pull out the vegetable//salad

compartment cover and case at the mid-point and up

and pull to apart.

●

Pull with both hands as showed

●

The height can be adjusted according to the stored bowls.

－10－

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6-3. CYCLE OF FREEZING

COMPRESSOR → SUB CONDENSER → CLUSTER PIPE → HOT PIPE →DRYER →CAPILLARY TUBE

→EVAPORATOR OF REFRIGERATOR →EVAPORATOR OF FREEZER → ACCUMULATOR →

SUCTION PIPE → COMPRESSOR

SUCTION PIPE

CLUSTER PIPE

ACCUMULATOR

EVAPORATOR OF

REFRIGERATOR

EVAPORATOR OF

FREEZER

CAPILLARY

TUBE

COMPRESSOR

DRYER

SUB CONDENSER

HOT PIPE

－11－

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7. TEMPERATURE CONTROL AND THE OTHERS

7-1. ELECTRONIC MODE

1. DISPLAY DESIGN

2. Temperature control function

1) Freezer temperatur control

1-1) It consists of five steps as follows and selected by one button.

MID

1-2) setting up turn on a light in order by system of freezer cholce button.

( MID MID,HIGH NIGH LOW LOW,MID MID...)

1-3) It set up“MID”automaticature during power on.

→

MID,HIGH

→

NIGH

→

LOW

→

LOW,MID

→

1-4) There is standard temperatically list of each notch part. (1/3H standard)

1-5) When inputting freezer key, display of LED change at once but actual operating start in 10 seconds

NOTCH

LOW

MID

HIGH

⊙

ITEM

-16.0℃

-19.0℃

-22.0℃

-17.5℃

-20.5℃

TEMPERATURE

2) Refrigerator temperature control

2-1) It consists of five steps as follows and selected by one button.

MID MID,HIGH NIGH LOW LOW,MID

2-2) setting up turn on a light in order by system of freezer cholce button.

( MID MID,HIGH NIGH LOW LOW,MID MID...)

2-3) It set up“MID”automaticature during power on.

2-4) There is standard temperatically list of each notch part. (1/3H standard)

→

2-5) When inputting freezer key, display of LED change at once but actual operating start in 10 seconds

NOTCH

LOW

MID

HIGH

⊙

ITEM

TEMPERATURE

+6.0℃

+3.0℃

-1.0℃

+4.5℃

+1.0℃

3) Ppwer freezering / Regular condition /9in bed)

1) It select just power freezer / Regular condition.

2) If you press power freezing / regular freezing →Power freezing →Regular condition.

3) When first power on, lamp does appear.

CLASSIFICATION

LAMP CHANGE

First POWER ON

OFF

Pressed once

Pressed twice

Regular condition operating

POWER freezing

－12－

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3-1) Power freeze function

A. Input power freeze/regular condetion key. When power freeze startes, LED signal change at once.

(Comp and F-fan runs continuously for two and a half hours when quick freeze sekected.)

B. During quick freezing the refrigerator controlled by setted notch.

3-2) Regular condition function

A. Judge the temp. of F/R room, F room is over comp on o“f LOW”NOTCH or R room is over comp on o“f LOW”NOTCH.

If so regular condition function isn’t performed and LED is OFF below 0.5 seconds.

B. Input the function, judge temp. of F room or R room, F room is less than comp on o“f LOW”NOTCH and R room is less than

comp on o“f LOW”NOTCH. If so regular condition function is operate and comp F,R-FAN is off without state of operation in recently.

C. When state the operation of regular condition, judge the temp. of F/R room, F room is over comp on o“f LOW”NOTCH or R room is

over comp on o“f LOW”NOTCH. If son regular condition function is the end and it is returned before.

4) Power refrigerator/Power saving function

1) Select power refrigerator/power saving button

2) Press POWER/SAVING BUTTON at once. And it is selected“OFF”ꢀ“Power refrigerator”ꢀ“Saving operation”.

3) Initial power on isn’t signal.

CLASSIFICATION

INITIAL POWER ON

OFF

PRESS ONE

PRESS T ONE

NOTES

POWER REFRIGERATOR

CHANGE OF SIGNAL LAMP

SAVING OPERATION NOTES

4-1) Power refrigerator function

A. Input power refrigerator/saving key. When power refrigerator started, LED signal change at once.

(Comp. and R-fan runs until the temperature of refrigerator reaches -4℃when quick refrigeration selected.)

B. During power refrigerator the freezing controlled by setted notch.

4-2) Saving operation function.

A. Input saving operation button, F/R room temp. operate 0.8℃rising. (When situation about NOTCH, rised 0.8℃)

B. When input power freezer or power refrigerator, saving function stop to the end of power function and saving operation is

performed after the end of power function.

※ When power freeze and refrigeration selected at the same time

- Each function applied at the same time Power freeze runs Comp. and F-fan for two and half hours and power refrigeration runs

Comp. and R-fan for -4℃and power refrigeration runs.

3. Alarming

1) Button touch“( Ding-Dong”sound)

1-1) Everytime the button pushed, the input confirmation“, Ding-Dong”sound.

1-2) Not sounds, if two keys are pushed at the same time or wrongly handled

2) Door-Open Warning

2-1) Two minutes after door opened, alarming sounds.

2-2) If door opened continuously, ten times of alarming sounds with one minute cycle.

2-3) Alarming stopped just after door closed.

－13－

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3) Forced operating and defrosting“( Beep”sound)

3-1) If forced function selected the“Beep”sounds.

3-2) Alarming sounds until the forced operating canceled by automatically(24Hr) or manualy.

3-3) Alarming sounds until the forced defrosting canceled by automatiically(24Hr) or manualy.

4) Defrosting

1-1) From the first power on, defrosting started after 4 hours of total Comp on time.

1-2) After that defrosting cycle can be varied from 6 hours to 24 hours.(Comp on time)

5) Testing

◆Testing is for PCB, product, function and service.

◆After testing, turn the power on to start self diagmosis.

1) Fored operating

1-1) As the button on PCB pushed once, Comp starts immediately.

1-2) If fored operating selected the notch of freezer and refrigerator fixed to“HIGH”and“MID-HIGH”. Then comp and

F-fan is controlled to pull down and R-fan is controlled to“MID-HIGH”notch.

1-3) Pull-down maintained just for 24 hours during forced operating, after that automatically defrost freezer and refrigerator

and then stares nomal operating.

1-4) Turn the power off or select test cancel mode to cancel the forced operating.

1-5) Alarming (0.25 secon/0.75 sec off) continues until the forced operating finished. It continues without any relations

to alarming key selection or cancel.

2) Forced defrosting

2-1) Push the test button one more time to run the forced defrosting of refrigerator.

2-2) One more push in the above status will run defrosting of freeaer and refrigerator simult a neously.

2-3) Forced operating cancelled automatically by starting forced defrosting and return to normal operating

after campletion of defrosting.

3) Test cancel mode

3-1) One more push in the status of forced defrosting of F/R wiill run normal operating.

3-2) Alarming stopped in the test cancel mode.

4). Initial function of first POWER ON.

1) If power is impressed, it begins to make a self diagnosis and light all LED for 2 second if normal condition is confirmed.

2) After first self diagnosis find unstable sensor among temp. sensor. And LED is on and off 5 second periods.

3) During 2 second turn on all LED. AND F/R LED display“MID-MID”

4) Early state R-EVA and F-EVA sensor is all below 15℃.

And R defrosting HEATER and F defrosting HEATER is perform per 0.5 second turn on.

5) After early state R-EVA sensor temp. or F-EVA sensor is over 15℃and F/R defrosting is end per 3 second,

COMP and F-FAN, R-FAN is turn on per 0.5 second and operated per 5 minutes without temp. condition.

6) Input TEST S/W among 4) and 5) movemen 5 it is the end and perform TEST function.

－14－

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5. SELF DIAGNOSIS

1) SELF DIAGNOSIS AT FIRST POWER ON

1-1) As the power applied to the refrigerator first time, all dispays show operating and run the self diagnosis.

1-2) If no problem foundes, display returns to normal mode

1-3) If probiem foundes, on and off the related display lamp and start alarming.

1-4) Lamp displayed until the problem solved or seif diagnosis cancelled.

1-5) After problem solved the display mode return to nomal.

1-6) After refrigerator repaired, sure to power off and on to run self diagnosis.

1-7) Refer to belows for problem and related displays.

ITEM

SYMPTOM

REMARK

DISPLAY LED

Refrigerator

R-SENSOR

Refrigerator sensor houslng disconnection

Faulty connection

Wire open or short

R-SENSOR temperature is over

+50℃or below -50℃

“LOW”

Faulty sensor

Refrigerator defrost sensor houslng

disconnection

RD-SENSOR

RD-SENSOR temperature is over

+50℃or below -50℃

Refrigerato“r MID”

Faulty connection

Wire open or short

Faulty sensor

ROOM-TEMP

SENSOR

Room-Temp sensor temperature

is over +50℃or below -50℃

Room-Temp senser LEAD disconnection

Faulty connection(PCB MAIN)

Wire open or short

Freeze“r LoW”

Faulty sensor

Freezer defrost sensor houslng

disconnection

Faulty connection

Wire open or short

Faulty sensor

F-SENSOR

ZF-SENSOR temperature is over

+50℃or below -50℃

Freeze“r LOW,MID”

Freeze“r MID”

Freezer defrost sensor houslng

disconnection

Faulty connection

Wire open or short

Faulty sensor

FD-SENSOR

FD-SENSOR temperature is over

+50℃or below -50℃

( SELF-DIAGNOSIS DISPLAY TABLE) )

－15－

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6. LOAD STATUS DISPLAY

1) Press power freezing / regular conditing and power refrigerating / power saving key for five seconds then

press temperature control key in the refrigerator after temperature display lamps on and off three times

2) This mode shows which lamps is being sourced signal from MICOM currently. This doesn’t mean the load is

operate due to the open wire or relay missing though the display shows the compressor operating.

3) Load status display return to normal mode after sixty seconds.

4) Follows are load status and related dispay.

DISPLAY LED

ITEM

DISPLAY

FREEZER SUBORDINATE

FREEZER ”LOW”

COMP

F-FAN

RELEVANT LED ON DURING COMPRESSOR OPERATION

RELEVANT LED ON DURING F-FAN OPERATION

FREEZER ”LOW,MID”

FREEZER ”MID”

FREEZER DEFROST HEATER

REFRIGERATOR SUBORDINATE

R-FAN, S-FAN

RELEVANT LED ON DURING FREEZER DEFROST HEATER ON.

REFRIGERATOR ”LOW”

RELEVANT LED ON DURING S-FAN AND F-FAN OPERATION

RELEVANT LED ON DURING REFRIGERATOR DEFROST

REFRIGERATOR ”MID”

REFRIGERATOR DEFROST HEATER

MODE DISPLAY

POWER FREEZER

POWER REFRGERATOR

POWER SAVING

INITIAL MODE

OVERLOAD

RELEVANT LED ON QITH INITIAL POWER INPUT.

RELEVANT LED ON QHEN ROOM-TEMP. IS OVER 35℃

RELEVANT LED ON QHEN ROOM-TEMP. IS BELOW 15℃

LOW TEMP MODE

(LOAD STATUS DISPIAY TABLE)

－16－

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7. operating of fan motor

1) FAN MOTORoperates BLDC MOTOR by dc power.

2) After first starting power, it operates“HIGH”rpm to off dot of fan and then operates“LOW”rpm

3) if binding motor or not sensing regular freguency of motor to pcb, motor will stop operating.

(After stopping, reoerating start in 10 seconds.)

※F, R, C-FAN operate equal.

8. OPTION TABLE

1) Temperature change TABLE of Freezer ( ● : Pertinent DIODE )

SHIFT

+0.5

+1.0

+1.5

+2.0

+2.5

+3.0

+3.5

+4.0

STANDARD TEMPERATURE

●

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-3.5

●

2 ) Temperature change TABLE of refrigerator ( ●: Pertinent DIODE )

SHIFT

+0.5

+1.0

+1.5

+2.0

+2.5

+3.0

+3.5

+4.0

SHIFT

STANDARD TEMPERATURE

●

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-3.5

●

－17－

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※

Personal Informatin

Micomport Voltage and Resisting force of sensor by Temperature.

RESISTANCE

98870

93700

88850

84150

79800

75670

71800

68150

64710

61480

58430

55550

52840

50230

47770

45450

43260

41190

39240

37390

35650

33990

32430

VOLTAGE (V)

4.541

4.518

4.494

4.469

4.443

4.416

4.389

4.360

4.331

4.301

4.269

4.237

4.204

4.170

4.134

4.098

4.061

4.023

3.985

3.945

3.905

3.863

3.822

RESISTANCE

30920

29500

28140

26870

25650

24510

23420

22390

21410

20480

19580

18730

17920

17160

16430

15740

15080

14450

13860

13290

12740

12220

11720

VOLTAGE (V)

3.778

3.734

3.689

3.644

3.597

3.551

3.504

3.456

3.408

3.360

3.310

3.260

3.209

3.159

3.108

3.057

3.006

2.955

2.904

2.853

2.801

2.750

2.698

RESISTANCE

11250

10800

10370

9959

9569

9195

8839

8494

8166

7852

7552

7266

6992

6731

6481

6242

6013

5792

5581

5379

5185

5000

4821

VOLTAGE (V)

2.647

2.596

2.545

2.495

2.445

2.395

2.346

2.296

2.248

2.199

2.151

2.104

2.057

2.012

1.966

1.922

1.878

1.834

1.791

1.749

1.707

1.667

1.626

RESISTANCE

4650

4487

4329

4179

4033

3894

3760

3631

3508

3390

3276

3167

3062

2962

2864

2770

2680

2593

2510

2429

2352

2278

2206

VOLTAGE (V)

1.587

1.549

1.511

1.474

1.437

1.104

1.366

1.322

1.298

1.266

1.234

1.203

1.172

1.143

1.113

1.085

1.057

1.030

1.003

0.977

0.952

0.928

0.904

TEMPERATURE (℃)

-42

-41

-40

-39

-38

-37

-36

-35

-34

-33

-32

-31

-30

-29

-28

-27

-26

-25

-24

-23

-22

-21

-20

TEMPERATURE(℃)

TEMPERATURE (℃)

-19

-18

-17

-16

-15

-14

-13

-12

-11

-10

-9

-8

-7

-6

-5

-4

-3

-2

-1

－18－

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7-2, SEMI ELECTRONIC MODE

A. Temperature control part design

Freezer temperature control

TEMP, FRE

refrigerator temperature control

TEMP, REF

B. Temperature control function

1) Tempera ture choice of freezer

·You can choose to ⑧ From ①

·Follows are control temperature by KNOB position.

KNOB position

①

②

③

④

⑤

⑥

⑦

⑧

control temperature

-16.0

-17.0

-18.0

-19.0

-20.0

-21.0

-22.0

-23.0

2) Temperature choice of refrigerator

·You can choose to ⑧ From ①

·Follows are control temperature by KNOB position.

KNOB position

①

②

③

④

⑤

⑥

⑦

⑧

control temperature

5.0

4.0

3.0

2.0

1.0

-1.0

NOTE) Temperature contol of freezer and refrigerator is position control by ROTRAY S/W, if it get out of

position it control NOTCH

C. Defrost function

1) Defrost set up by time of COMP ON.

2) Defrost tun Heating →Rest time

3) When initial power on, initial defrost run defrost of freezer and refriger ator in 4 hours of COMP

ON. Since initial

(R →R, F →R →R, F ... Cycle operating))

4) ON/OFF of defrost - heater control by EVA-SENSOR If EVA-SENSOR is problem (short 10 pen),

it run just rest time and then finishes defrost function without heating.

5) During defrosting it maintain COMP and FAN state and after finish defrost-heating rest time

is 10 minutes.

6) Follows are defrost heating ON point and OFF point that operate by EVA-SENSOR.

REFRIGERATOR

FREEZER

REMARK

HEATER ON dot

HEATER OFF dot

BEIOW+10℃

BEIOW -5℃

17℃

－19－

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D. TEST FUNCTION

▶TEST function is function for test,SVC and fair test of PCB and product.

▶TEST S/W choose and confirm function of product and then POWER ON to run self diagnosis.

1) FORCED OPERATING FUNCTION

●Pressed once TEST S/W on MAIN PCB. If so COMP and F-FAN run at once. Thus be careful because

occur COMP over load.

(Refrigerator FAN control ON/OFF by temperature)

●Since it set up forced operating function, it always run COMP and F-FAN and display lamp on MAIN

PCB with ON/OFF 0.1 second periodically.

(Refrigerator FAN control ON/OFF by temperature)

●In 24 hours forced operating function of freezer and refrigerator operate and finish then run normal mode

by KNOB position of temperature setting up.

●During forced operating function if you want to stop it first power OFF and then power on or choose

TEST cancellation mode.

2) Forced defrost function

● For forced operating pressed once TEST S/W button, it cancel forced operating at once and refrigerator

forced defrst function with display forced defrost position ON/OFF lamp on MAIN PCB 0.5 secoonds

periodically. If press one more TEST S/W bueeon display refrigerator and freezer defrosting.

●If forced defrost choose, COMP and FAN power OFF and defrost heater on at once, At this time,

if sensing temperature of EVA-SENSOR over 12℃defost heater power off and operate rest time normal mode.

●After heating finish it need 10 minal mode

3) TEST FUNCTION CANNCELLATION MODE

●Duting refrigerator and freezer run forced defrost function press one more TEST S/W button if so forced

defrost cancel and rest in 10 minutes and then turn normal mode.

－20－

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E. self diagnosis function

1) Power on refrigerator and it run seif diagnosis function about 2 seconds at the inner part.

2) If no preblem it turns normal mode.

3) If find prebiem display lamp of PCB show errw position like lower list and everything don’t operate until repair

error position.

4) After refrigerator power off and then power on for confirming conditiom.

5) Thus if you want to know OPEN/SHORT of temperature sensor on SVC, power off and on if it run self

diagnosis function.

6) When error occur LAMP display method.(Lamp on time : 0.3 seconds ( ON/OFF) Lamp off time : 2 seconds)

ITEM

Problem

Remark

No.

Led Display

-.OPEN ERROR

-.SHORT ERROR

-.OPEN ERROR

-.SHORT ERROR

-.OPEN ERROR

-.SHORT ERROR

-.OPEN ERROR

-.SHORT ERROR

-. SENSOR IS BELOW -50℃

-. SENSOR IS BELOW +50℃

-. SENSOR IS BELOW - 50℃

-. SENSOR IS BELOW +50℃

-. SENSOR IS BELOW - 50℃

-. SENSOR IS BELOW +50℃

-. SENSOR IS BELOW - 50℃

-. SENSOR IS BELOW +50℃

F DEFROST

SENSOR

Off

R DEFROST

SENSOR

Off

F SENSOR

R SENSOR

F Rotary S/W

Off

-.OPEN ERROR

Off

-.OPEN ERROR

R Rotary S/W

Off

Vntil operating initial 5minutes

NORMAL MODE

●In case of many problems find it display error position in order.

①When problem R-ROOM SENSOR display lamp operating.

(0.3 seconds ; ON/OFF) Four times →2 seconds OFF - REPEAT -

② When problem R-ROOM SENSOR and F-ROOM sensor at the same time display method.

(0.3 seconds ; ON/OFF) Three times →2 seconds OFF - REPEAT -

※Tem perature contre control operating by ROTRAY SWITCH

INITIAL SEIF DIAGNOSIS(OFF/ON)

STOP ERROR DISPLAY OPERATING

“HIGH”

OPERATING

OPERATING BEFORE OPEN STEP

“HIGH”

OPEN ERROR

SHORT ERROR

SECTION

OPERATING BEFORE SETTING UP STEP

“MID”

F. Quick heating operating

1) If freezer heating sensor OPEN/SHORT error at freezer heating it runs just rest time without heating..

2) If refrigerator heating sensor OPEN/SHORT error at refrigerator heating it runs jest time without heating.

－21－

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8. CIRCUIT OPERATING THEORY

8-1. ELECTRONIC MODE

1. Power suooly part

1) Power is on and makes about DC 300V through BD1.

2) TOP S/W is switching the best condition automatically.

Electric current run between D and S of TOP S/W and occur electric current in TRANS and when power of D-s is

off storing electric current of TRANS pass to secondary voltage.

3) Voltage main 12V. This is applied to display, relay and 5V power of sourcr and Main PCB

2. OSCILLATOR

TERMINAL

Xin(#30)

FREQUENCY

4MHz

Xout(#31)

1) Tish needs function for CLOCK occurrence and time calculation.

In case of SPEC of RESONATOR change abnormal mode run because of changing Timming system of MICOM.

3. RESET PART

TERMINAL

Vcc

VOLTAGE

DC 5V

RESET

－21－

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1) RESET part is intialize RAM of MICOM and others when power is on or power is inferruoted for some time It will make

whole program runs from the first status. When power is supplied, reset voltage is“LOW”status for a few seconds and

turn into“HIGH”(Vcc Voltage) status in the normal opweating.

4. DOOR S/W SENSING PART

ITEM

DOOR CONDITIONS

DOOR S/W CONTACT

OPEN

LAMP

OFF

CN72PIN NO1 CONTACT MICOM INPUT VOLTAGE

OFF

OUTMODE

OPEN

OFF

OUTMODE

OPEN

OFF

1) DOOR S/W sensing part doesn,t sense Door of Fand R room on each micom.

2) Lamp control door is opened, door S/W pin NO 3 opened and voltage no touching No1 of CN 27 and MICOM input Then the

door-open is sensed.

3) When the door is opened, Door S/W pin No 3 opened and voltage no touching No 1 of CN No 27 and MICOM input.

Then the door-open is sensed.

→

It makes door alarm after 2 minutes

This time F,R DOOR must close at the same time for stopping Door alarm.

4) DID DOOR S/Whave no each sensing parts and control lamp ON/OFF by contact dot of DOOR.

－22－

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5. TEMP·SENSING PART

1) Thermistor is used for sensing which has negative resistance coffiecient to the temperature.

R 302, 4, 6, 8, 12, C301~C306 are pares for preventing noise.

2) MICOM input voltage, Vf of sensor is Vf=(R+hx x Vcc)/(R301+Rth) (Rth : sensor resistance)

6. KEY SCAN AND DISPLAY PARTS

1) KEY SCAN and display operating

It is used for No 5 of MICoM NO #2, 3, 4, 5, 6,

It operates“high”10 msec periodically for 2 msec cycle : MICOM pin No : #2

→

This signal pass by IC 04 (UDN 2981 or KID 65783AP) from Input dot to Dotput dot.

Voltage of peak to peak is about 11V (DC RMS 1.5V)

－23－

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7. COMP AND DEFROSTING HEATER OPERATING

GRY

RED

COMP LED

F-DEFROSTING HEATER

R-DEFROSTING HEATER

As it is seen above block diagram. 220V line is connected to the commons of comp relay, Ry 71 and defrosting heater relay,

Ry 73, Ry 75. When those relays are off state comp and defrosting heater are also off. As comp relay moves to on and AC

220V applied to comp load it starts operating On the other hand defrost heater runs if defrost heater relay moves to on. There

is no chance that both comp and defrost heater runs together so it’s useful for safety aspect.

STATES

LOAD

REMARK

COMP

F DEFROSTING HEATER

COMP OPERATION

preverting power of F-DEFROSTING HEATER

OFF

COMP OFF, F-DEFROSTING HEATER OFF

F-DEFROSTING HEATER ON

PREVENTING COMP POWER

OFF

COMP OFF, F-DEFROSTING HEATER OFF

OFF

－24－

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8. BLDC MOTOR Operation Circuit

1) Operate description of BLDC MOTOR First, if FAN became before operate condition of FANMOTOR, condition of in the temp.

are high temp. more than FAN of recently institutionn NOTCH is operated condition.

ex)CONNECTOR CN 70’S third voltage : Input VL, Vcc 5V(Used Diode regard DROP)

Perated High RPM

V L = Gain * Ei

Gain = (R705+R704)/R704

= (20K + 10K)/10K

Ei = R703/(R701+R703) * Vcc

= 10K/(820 + 10K)*4.4

= 4.07

V L = 4.07*3=12.24 (Change it for resistance error)

1-1) FANMOTOR in the freezer(F-FAN)

A. If refrigerator’s power is confimated, check the temp. of F-FAN and temp. more than F-FAN on is operated“HIGH RPM”to sign

of MICOM #13 PORT. After arrived FAN OFF, if FAN is OFF and separate function of ON.OFF isn’t confimated always NICOM

#12 PORT is confimate sign and operated“LOW RPM”

B“. HIGH RPM”is determinated the resistance of R701, LOW RPM is determinated the resistance of R702.

C. When check RPM, check the wire to resistance of R715 and it is knew to MOTOR RPM.(wire *4)

D. Operated condition to Motor is received wire sign to MICOM #7 PORT but if it isn’t regular wire, FAN is stopped and operate again

after 5 minutes.

※ When power freeze and forced operation, always operated“HIGH RPM”without temp. of freezer.

－25－

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1-2) FAN MOTOR IN THE FREEZER (R-FAN)

A. If refrigerator’s power is confimated, check the temp. of R-FAN and temp. more than R-FAN ON is operated “HIGH RPM”to sign

of MICOM #11PORT. After arrived FANOFF, if FAN is OFF and separatre function of ON/OFF isn’t confimated always

MICOM#10PORT is confimate sign and operated “LOW RPM”.

B. “HIGH RPM”is determinated the resistance of R706, LOW RPM is determinated the resistance of R707.

C. When check RPM, check the the wire to resistance of R716 and it is knew to MOTOR RPM.(wirw*4)

D. Operated condition to MOTOR is received wire sign to MICOM #8PORT but if it isn’t regular wire, FAN is stopped and operate again

after 5minutes.

※ When power refrigerate and forced operation, always operated “HIGH RPM”without temp. of freezer.

1-3) COMP FAN MOTOR

A. If refrigerator’s power is confimated, check the operated condition of F,R-FAN and F,R-FAN is HIGH RPM is operated #HIGH RPM to

sign of MICOM #20PORT. After arrived F,R-FAN OFF, if FAN is OFF and seperate function of ON/OFF isn’t confimated always

operated “LOW RPM”

B. “HIGH RPM”is determinated the resistance of R711, LOW RPM is determinated the resistance of R711,R729.

C. When check RPM, check the wire to resistance of R717 and it is knew to MOTOR RPM (wire *4).

D. Operated condition to MOTOR is received wire sign to MICOM #9PORT but if it isn’t regular wire, FAN is stopped and operate again

after 10minutes.

E. COMP FAN is always HIGH RPM, if it is HIGH RPM.

※ When power freeze and refrigerate, forced operation, always operated “HIGH RPM”

－26－

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9. POTION PART

1) PRINCIPIE OF MAVEMENT

Like the GRID waves appear in initial POWER ON is reaeved through SWITCHING DIODE and OPION

is judged for MATRIX method.

NAME

STANDARD

10Kohm-J (1/4)

1Kohm-J (1/4)

REMARK

R-CARBON

※when OPTION Changed power turns off, after change and power turn on.

－27－

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8-2. SEMI ELECTROMAGNETIC

9-1. POWER PART.

V12(DC 12V)

Vcc(DC 5V)

FUSE

250V, 0.5A

KA7812

KA7805

VAR1

GRY

C104

104

C103

470uF/25V

C102

470uF/25V

C101

1000uF/35V

C105

104

LVT

CON 70

YW396-07AV

IN4007*4

D101~104

RED

CON 71

YW396-05AV

POWER

CIRCUIT OF USING

- ●Vcc(DC 5V)

POWER AROUND MICOM OR SENSOR SENSING PART

RELAY RUNNING PART

- ▶V12(DC12V)

AC220V input power is decompressed through LVT(DC-TRANS), the power is changed DC vltg through DIODE rectification. It is

an archery practive bow through 1000uF/35V CAPACITOR. And regular DC 12V is output through REGULATOR 7812, it is used

to the RELAY runing power. The other of LVT(DC-TRANS) is an archery pratice bow through DIODE rectification or 1000Uf/35V

CAPACITOR and it is output the regular DC5V through REGULATOR 7805.

And it is used sircumference circuit or various signal(Sensor,Switch) input power.

9-2. Departure circuit PART

TERMINAL

Xin

ERUPTION QAVEIENGTH

4.00MHz

Xout

4.00MHZ

less than ±0.5% error

Element of inside MICOM is copper ware clock production of informations transmission, reception and eruption circuit for time calculation.

In a case change SPEC of X-TAL use the standard parts or SPEC because it changes calculated time at MICOM or doesn’t run.

－28－

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9-3. RESET CIRCUIT PART

RESET circuit part is performed the eariy state all

program furction when input power and confimate

power to MICOM for suddeniy electricity failure, it is

initialed to PAM of inside MICOM. when confimate

power RESET’S vltg is“LOW”state during

sevweal tens uses and it is“HIGH”state as nomal

operation state.

9-4. SENSING OF TEMP PART

SENSOR OPEN

SENSOR SHORT

Inpat MICOM“HIGH”

Inpat MICOM“LOW”

1) SENSOR is vsing the THER with labor coefficint, if temp. is high, resistance is low on the contrary if temp.

is iow, reissitarce is high.

2) According to sensor, voltage of input to MICOM is calculate,

Rth

Rth + 10㏀

Vf =

X Vcc(Vcc:5V, Rth:SENSOR RESISTANCW)

－29－

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9-5. TEMP. CONTROL CIRCUIT.(ROTARY S/W)

A. FREEZER TEMP.

※CAUTION

It is appeared the S/W cross spot of ROTARY

S/W circuit ①∼⑩

Temp. control is changed KNOB of contructed ROTARY S/W in the freezer and it is possible the temp. control 1 step

to 8 step.

Temp. control SETTING become partial pressure for R 501 resistance and ROTARY S/W resistance.

(Row composition resistance of resistance charge to R 908 and ROTARY S/W direction)

And partial pressure is delivered to MICOM through R 503 resistance and recognited temp. control and it become

SETTING to temp. contol.

Voltage or resistance charge of MAIN PCB MICOM input for SUB PCB Ass’s ROTARY S/W cross spot direction is

same the below.

(When Measure the resistance charge, connector of MAIN PCB CN 30 is separated and measure the connector

terminal.)

Section

1 STEP

(9PIN)

2.77

2 STEP

(8PIN)

2.94

3 STEP

(7PIN)

3.12

4 STEP

(6 PIN)

3.33

5 STEP

(5 PIN)

3.57

6 STEP

(4 PIN)

3.84

7 STEP 8 STEP

WHEN OPEN

(3PIN)

4.16

(2 PIN)

4.54

THE OPEN SPOT

Voltage

0.1~ 0.7V

(R504)

±0.15V

6.54㏀±

±0.15V

5.66㏀±

±0.15V

4.76㏀±

±0.15V

3.84㏀±

±0.15V

2.91㏀±

±0.15V

1.96㏀±

±0.15V ±0.15V

Resistance

(CN30⑥~⑦)

0.99㏀±

0Ω

100㏀±1%

※ To upside, when measure the resistance charge isn’t appeared the resistance in the case SUB PCB ASSY

connection is disconnection or crack situation of PCB board.

－30－

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B. REFRIGERATOR TEMP

※ CAUTION

It is appeared the S/W cross spot of ROTARY

S/Wcircuit ①~⑩.

Temp. control is changed KNOB of contructed ROTARY S/W in the refrigerator and it is possible the temp. control 1 step to 8 step.

Temp. control SETTING become partial pressure for R502 resistance and ROTARY S/W resistance.(Row composition resistance of

resistance charge to R908 and ROTARY S/W direction). And partical pressure is delivered to MICOM through R505 resistance and recognited

temp. control and it become SETTING to temp. control. Voltage or resistance charge of MAINPCB MICOM input for SUBPCB Assy’s

ROTARY S/W cross spot direction is same the below.(When measure the resistance charge, connector of MAINPCB CN30is separated and

measure the connector terminal.

Section

1 STEP

(PIN #9)

2 STEP

(PIN #8)

3 STEP

(PIN #7)

4 STEP

(PIN #6)

5 STEP

(PIN #5)

6 STEP

(PIN #4)

7 STEP

(PIN #3)

8 STEP WHEN OPEN

(PIN #2) THE CROSS SPOT

Voltage

2.77

2.94

3.12

3.33

±0.15V

3.84㏀± 2.91㏀± 1.96㏀±

1% 1% 1%

3.57

3.84

4.16

4.54

0.1~ 0.7V

(R506)

±0.15V

6.54㏀±

±0.15V

5.66㏀±

±0.15V

4.76㏀±

±0.15V

0.99㏀±

±0.15V

Resistance

(CN30⑥~⑦)

0Ω

100㏀±1%

※ To upside, when measure the resistance charge isn’t appeared the resistance in the case SUBPCB ASSY connection is

disconnection or crack situation of PCB board.

－31－

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6. ELECRICAL LOAD SIGNAL LAMP CONTROL PART

BARISTER

GRY

SSR71

SSR72

RY71

RED

RY72

RY73

Like the above circuit, pin 1 of CN71 suply the power. And electrical load suply the power when

electricaload operated. operated refrigerator, freezer to fact comp operation And if it is needness of

defrosting operation, performed comp’s electrical load is off, it is security of circuit. In fact, each

operation is operated to temp. sensor and absoluteness defrosting isn’t operated with comp.

－32－

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7. POTION PART

A. circuit way

B. MOVEMENT PRINCIPAL

like the grid waves appear in initial power on is recieved throngh switching diode and option is judged

for matrix method.

when option changed power furnd off, after change and power turns on.

C. TEMP SHIFT

FREEZER TEMP SHIFT

REFRIGERATOR TEMP SHIFT

(UNIT : ℃)

SHIFT

602

601

SHIFT

604

603

STONDAR

-1.0

●

-1.0

●

-2.0

●

-2.0

●

+1.0

●

FROSTING TEMP SHIFT

(UNIT : ℃)

SHIFT

STONDAR

605

10 hours

7 hours

※CAUTION

Don’t change DIODE OPTION escape D601~D605, becase it is related to Refrigerator’s frust.

－33－

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※PERSANAL INFORMA

sensor resistance power and MICOMPORT voltage by temperature.

VOLTAGE (V)

3.778

3.734

3.689

3.644

3.597

3.551

3.504

3.456

3.408

3.360

3.310

3.260

3.209

3.159

3.108

3.057

3.006

2.955

2.904

2.853

2.801

2.750

2.698

TEMPERATURE (℃)

VOLTAGE (V)

4.541

4.518

4.494

4.469

4.443

4.416

4.389

4.360

4.331

4.301

4.269

4.237

4.204

4.170

4.134

4.098

4.061

4.023

3.985

3.945

3.905

3.863

3.822

RESISTANCE (Ω)

11250

10800

10370

9959

9569

9195

8839

8494

8166

7852

7552

7266

6992

6731

6481

6242

6013

5792

5581

5379

5185

5000

4821

VOLTAGE (V)

2.647

2.596

2.545

2.495

2.445

2.395

2.346

2.296

2.248

2.199

2.151

2.104

2.057

2.012

1.966

1.922

1.878

1.834

1.791

1.749

1.707

1.667

1.626

TEMPERATURE (℃)

VOLTAGE (V)

1.587

1.549

1.511

1.474

1.437

1.104

1.366

1.322

1.298

1.266

1.234

1.203

1.172

1.143

1.113

1.085

1.057

1.030

1.003

0.977

0.952

0.928

0.904

RESISTANCE (Ω)

30920

29500

28140

26870

25650

24510

23420

22390

21410

20480

19580

18730

17920

17160

16430

15740

15080

14450

13860

13290

12740

12220

11720

TEMPERATURE (℃)

-42

TEMPERATURE

(℃)

RESISTANCE (Ω)

98870

93700

88850

84150

79800

75670

71800

68150

64710

61480

58430

55550

52840

50230

47770

45450

43260

41190

39240

37390

35650

33990

32430

RESISTANCE (Ω)

4650

4487

4329

4179

4033

3894

3760

3631

3508

3390

3276

3167

3062

2962

2864

2770

2680

2593

2510

2429

2352

2278

2206

-41

-19

-18

-17

-16

-15

-14

-13

-12

-11

-10

-9

-40

-39

-38

-37

-36

-35

-34

-33

-32

-31

-30

-8

-29

-7

-28

-6

-27

-5

-26

-4

-25

-3

-24

-2

-23

-1

-22

-21

-20

－34－

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ABOUT CIRCUIT LINK LIST

CODE-NO

SPEC

MODEL NAME

Quantity

Remark

DA32-10109H

DA32-10109A

DA32-10105G

DA41-00048A

DA41-00012A

DA26-30116A

DA41-00053A

R-SENSOR ASSY

502AT

F-SENSOR ASSY

EVA SENSOR ASSY

MAIN PCB ASSY

SUB PCB ASSY

DC-TRANS

GENERALLY

SEMI

AC220V/50,60Hz

Applicating

SEMI DID HEATE

MAIN PCB ASSY

－35－

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9. Diagnosis of disorder and method of repair

1. ELECTRICAL (SR-61KTC,65KTC)

Preliminary examamination

1. Check the power of consent and power code

2. Check it based on the :References” on the next pages.

1. No input Power

START

Ohiy aline AC 220V FUSE?

POWER CARD connection

Change main fuse

Is confimate 220V the

CN10 both sides?

Check the eletric wire

construction

Only a line FUSE of MAINPCB?

Change fuse-250V 2A

Is confimate 300V the

BD 1(+),(-),?

-Caution-

MAIN PCB power part is

Change PCB PATTERN

and change BD1

appesred high-pressure.

Is confimate DC5.

8Vthe the TOP S/W 223Y

among ‘C-S’?

Change PCBASSY

Is confimate 12v the both

C104sides to?

Change D102(D10SC9M)

Change Reg1 (7805)

Is confimate 5v the both

sides to c103?

Is PANEL PCB O.K?

LEAD WIRE CABI, DOOR

(Cooent to the upside)

1. Check assembly line

and repair

2. Change parel PCB

Is RELAY O.K?

1. Change pertinet RELAY.

2. Check contacted

LEADWIRE.

Nomal state

－36－

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2. Self diagnosis failure

ꢀOuter temper ature sensor failure

START

Is main PCB connection O.K?

Connection failure, SHORT

Is outertemp sensor O.K?

Change temp sensor,

change PCB MAIN

Is input vltg of MICOM

PIN#58 O.K?

Check Main-PCB

PCB and temp sensor O.K.

Reconfirm outertemp sensor inferior

②

Refrigerator temp, sensor failure

START

Is temp sensor O.K?

change sensor

Is MAIN-PCB Connection

(con30) O.K?

Connection failune Re-connection

Is input vltg of MAIN-PCB

(con30) pin2 O.K

Cheak connected sensor wire

Cheak short and iced lead

Is input vltg of

MICOM pin#60 O.K

PCB and temp sensor O.K.

Reconfirm connector inferior.

－37－

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ꢁRefrigerator’s defrosting sensor failure

START

Is MAIN-PCB connection

(con30) O.K?

Connection failure

Change sensor

Is defrosting sensor O.K.

Is connection of defrosting

sensor O.K

Connection failure

Is input vltg of

CON30PIN60 O.K.

Wire open

Change MAIN PCB ASS’Y

ꢂ Freezer tem sensor failare

START

Is MAIN-PCB connection

(con30) O.K?

Connection failure

Change sensor

Is temp sensor O.K

Is connection of temp

sensor O.K

Connection failure

Is input vltg of

CON30PIN80 O.K.

Wire open

Change MAIN PCB ASS’Y

－38－

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ꢃ Freezer’s defrosting sensor failure

START

In MAIN-PCB connection

(con30) O.K?

Connection failure

Change sensor

Is defrosting sensor O.K.

Is conection of defrosting

sensor O.K

connection failure

Wire open

Is input vltg of CON30

PIN4 O,K

Change MAIN PCB ASS’Y

－39－

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3. In case of contiunous alarming

REFRENCES

ꢄF/R door open alarms for ten seconds after 2 minutes later.

IF door opens continuously, door open alarms for ten seconds with one minute cycle. cten

times of“Ding-Ding”

ꢄIf there is moisture in door S/W, it is shorted and alarms due to the MICOM’S misjudgement,

In this case the inside lamps of freezer and refrigerator turns off so the lamp do not turns on

thaugh you open the door.

ꢄIf the door S/M is rusted, the sighal of door open do not reach to MICOM and no alarms and

lamps turhed off continuously.

①In case of continous Melody

START

Is the Door S/W O.K?

Change the Door S/W

Is MAIN PCB connection

(con72) O.K?

Connection failure

Does the ultg of con72 pln3.

1 and AC220V change?

Wire open, change door S/W

Change main PCB ass’y

－40－

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②

In case of“Beep-Beep”alarming

START

Is forced operating/fro

sting selected?

Cancel forced oper/defro

MAIN-PCB O.K

Is it the same when power

on again?

PCB MAIN TEST S/W (SW1);lead

touch, check shorted other material

REFRENCES

ꢄThere is on“beep-beep”alarming except the forced operating/frosting or sensing troble during

self diagnosis

ꢄIf self diagnosis sensed troble, it is displayed on the PANEL PCB, so easy to check, If not, the

forced operating/frosting is selected the NOTCH status are“High”-”Mid,High”at that time.

③ In case of no PANEL PCB display

START

Is the connection of COVER O.K?

Connection failure

Is MAIN-PCB connection (CON50) O.K?

Re-connectin

Is PANEL-PCB connection O.K?

Re-connection connection failure

CHANGE PANEL PCB

－41－

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④

In case of the panel PCB Key selection is impossible.

START

Is the connection of

cover O.K?

Re-connection connection failure

Re- connection

Is MAIN-PCB commection

(CON50)O.K?

Is PANEL-PCB connection O.K?

Re-connection connectionfailure

Re-assemble PANEL COVER

Are there any keys already

predded?

Change PANEL-PCB

4. In case of FAN do not run

REFRENCES

“Be sure to check cooling FAN under forced operation”

1. F-FAN, R-FAN and COMP COOLING are off when COMP is off.

2. Though the comp is on, the R-FAN is not always on because the FAN is off when the tem

perature was reached to the set point.

3. There is delaying time to run the fan after door open (COMP ON state). thedelay time varys

from ten seconds to one minute, (Forced operation included)

4. When closed MOTOR, it is stop state (After stopped, it is ON/OFF at ten minutes)

－42－

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①

In case of F-FAN doesn’t run (Run the DC voltage)

START

Is it forced operation?

Forced operation

Does it run lmin after the door

S/W pressed?

F-FAN O.K

Is confivcate AC 220V of the

MAIN PCB connection

CN72 PIN 1.3?

Re-connection CON72

Check wire

Does the door

S/W works norks nomally

Change DOOR S/W

Is 5V vltg MAIN PCB MICOM

PIN27?

Change MAIN PCB

Has vltg the MAIN PCB

connection CN70 pin 2?

(12V or 9V)

Check CON70 Connection

Check the MOTOR

Has wave the MAIN PCB

connection CN70 pin 5

Check MOTOR

Change MOTOR

Check IC 06 KA324 Change MAin PCB

－43－

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②

In case of R-fan doesn’t run (Run the DC voltage)

(Reference BLDC MOTOR run circuit)

START

Is it forced operation?

Forced operation

Does it run lmin after the door

S/W pressed?

F-FAN O.K

Is confivcate AC 220V of the MAIN

PCB connection CN72 PIN 1.3?

Re-connection CON72

Check wire

Does the door

S/W works norks nomally

Change DOOR S/W

Is 5V vltg MAIN PCB MICOM

PIN27?

Change MAIN PCB

Has vltg the MAIN PCB

connection CN70 pin 2?

(12V or 9V)

Check CON70 Connection

Check the MOTOR

Has wave the MAIN PCB

connection CN70 pin5?

Check MOTOR Change

MOTOR

Check IC 06 KA324 Change MAin PCB

－44－

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③

In case of COMP FAN doesn’t run (run the DC voltage)

(Reference the BLDC MOTOR run circuit.)

START

Is it forced operation?

Forced operation

Has vltg the

MAIN PCB connectionPIN3 of

CN70?(12V or 9V)

Check CON70 connection check

the MOTOR

Has qave-length the

MAIN PCB connection

pin7 tof CN70?

Check the MOTOR Chang the MOTOR

Check IC 06 KA 324

Change MAIN PCB

－45－

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9. Diagnosis of disorder and method of repair.

2. SENMI electronic mode (SR-61NMC, 65NMC)

1. When not operating Power

START

Is power voltage output between MAIN

PCB PIN5 of CN 70 and PINI of CN 71?

Repair POWER CORD and electric cord.

Is TRANS secord side voltage of MAIN

PCB normal?

Exchange DC-TRANS.

Is FUSE normal?

Exchange FUSE.

Repair iced iead

Repair PCB

Is iced lead near MAIN PCB soldering and

SHORT phenomenon?

Is defrst relay and comp relay during operating

TEST S/W of NAIN PCB normal?

Exchange MAIN ASSY

－46－

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2. Self diagnosis failure

A. Freezer’s temp·sensor failure

START

Is freezer’s temp·sensor O.K?

change temp ,senser

Is MAIN PCB connection

(CON30) O.K?

Connection failure Re-connection

Is connection of temp sensor O.K?

Is input vltg of MICOM pinll O.K?

Check connected sensorwire

Check short and iced lead

PCB and temp, sensor O.K

Ckeck connection Charge MAIN PCB

B. Refrigerator’s temp, senser failure

START

Is refrigerator’s temp·sensor O.K?

change temp ,senser

Is MAIN PCB connection

(CON30) O.K?

Connection failure Re-connection

Check connected sensorwire

Is connection of temp sensor O.K?

Is input vltg of MICOM pin 10 O.K?

Check short and iced lead

PCB and temp, sensor O.K

Ckeck connection Charge MAIN PCB

－47－

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C. Freezer’s defrosting sensor failure

START

Is freezer’s defrosting sensor O.K?

Change sersor

Is Main PCB connection

(con30)O.K?

Connection failure Re-connection

Check connected sensor wire

Check lead and short

Is connection of detrosting sensor O.K?

Is input of MICOM pin 9 O.K?

PCB and temp.sensor O.K

Check connection. change MAIN PCB.

D. Refrigerator’s defrosting sensor failure

START

Is Refrigerator’s defrosting sensor O.K?

Change sersor

Is Main PCB connection

(con30)O.K?

Connection failure Re-connection

Is connection of detrosting sensor O.K?

Is input of MICOM pin 8 O.K?

Check connected sensor wire

Check lead and short

PCB and temp.sensor O.K

Check connection. change MAIN PCB.

－48－

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3.In case of FAN in the refrigerator doern’t run

REFRENCES

“Be sure to check cooling FAN under forced operation”

1. Freezer FAN, refrigerator FAN and COMP COOLING are off when COMP is off.

2. Though the COMP is on, the FAN is not always on because the FAN is off when the temperature

was reached to the set point (Forced operation included)

3.There isn’t delaying time to run the fan after door open (COMP on state)

A. In case of F-Fan do not run

START

Select Forced operation

Forced operation

Does it run after the door S/W pressed?

F-FAN O.K

Does the door S/W works nomally

Change Door S/W

In MAIN PCB connection O.K?

Re-connection CN70

Output MICOM pin 19 sigral?

Change lead and MICOM change PCB

Is 5V the IC3(KA2657)

#16 singval?

IC3(KA2657) Failure

Check ssr(SSR71), Change

MAIN PCB ASSY

－49－

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B. In case of R-FAN do not run.

①Check

START

Select Forced operation

Forced operation

FAN is operating condition to ROTRAY

S/W or SENSOR?

Reference checked ROTARY S/W

and changed set up.

Does it uun after the door S/W pressed?

F-FAN O.K

Does the door S/W works nomally?

Is MAIN PCB con70 connection O.K?

Change DOOR S/W

Re-connection CON70

Output the MICOM pin#18 stghal?

Is 5V IC3(KA2657) #15 signal?

Change lead and MICOM chang PCB

IC3(KA2657) Failure

Chesk ssr (ssr72) change

MAIN PCB ASSY

－50－

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②Check ROTARY S/W

START

Is proper the retrigerator's

temp·regulator?

Regulate temp regulator

Change temp,regulator

Is temp·regulator O.K?

Is ROTARY S/W vltg and resistance of

MAIN PCB O.K?

Fix connect part and wire

Is retrigerator's sensor resistaance O.K?

(Referce separate temp.TABLE)

Change refrigerator's sensor

Fix MAIN PCB ASSY and

COMP connector

－51－

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4. Badress management of freeze cycle

Appearance

Caun termeasure

Pour into ice.

Cause

EVAP is cold and warm

COND is warm, when EVAP

is cold.

Interruption for

moisture(Iced)

This movement is reply.

Other material is

infiltrated and cooling

cycles is interrupted

Cond is cold EVAP isn’t cold.

Comprssor temp. is high.

Check interrupt section and

repairs.

SUCTION PIPE is same the

DISCHARGE PIPE.

EVAP doesn’t cold COND is same

the nomal temperature.

Badness the

compressor

Change compressor

Product frost to suction PIPE

Ouerheat of COND.

Cooling state of EVAP be

ineffective.

full of ice

Pour into ice

About a haif of EVAP is

covered frost and particular

freeze becase disclosure the

ice is ilttle.

COND is cold

After weid the

disclosure part,

pour into ice.

Surace temp of compressor is high

Refrigerator isn’t cold at once

－52－

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10. Disassemble and Assemble Drawing And Parts List

10-1. Freezer comoartment(SR-61KTC, 65KTC)

LAMP-INCANDE SENT

VAMP-HOLDER

SENSOR-ASSY

COVER-LAMP FRE, B

COVER-LAMP FRE, A

COVER-LAMP FRE,ASSY

SCREW

SHELF-FRE

TRIM-SHELF

TRAY-ICE

SHELF-FRE,ASSY

SENSOR-ASSY

CAVER CASE-ICE

THERMO-FUSE, ASSY

EVAP-FRE, ASSY

CASE-ICE CUBE

GR0MMET-MOTOR

WIRE-HARNESS

EVAP-FRE

SCREW-TAPPING

HEATER-DRAIN

COVER-MOTOR

MOTOR-FAN

BUMPON-MOTOR

FAN-SIROCCO

COVER-EVEP FR, ASSY

SPRING-FAN

COVER-EVAP REAR

COVER-FAN, A

COVER-EVAP RE, ASSY

SCREW

CAP-SCREW

COVER-EVAP, FRONT

－53－

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10-2.

(SR61NMC,65NMC,69NMC)

Freezer compartment

WIRE HARNESS-ROTART

SCREW-TAPPING

PBA-PANEL

LAMP-INCANDESENT

LAMP-HOLDER

SENSOR-ASSY

CASE-LAMP FRE, ASSY

SCREW-TAPPING

CASE-LAMP, FRE

KNOB-TEMP, CONTROL, F

COVER-LAMP, FRE

SHELF-FRE

TRIM-SHELF

TRAY-ICE

SHELF-FRE,ASSY

SENSOR-ASSY

THERMO-FUSE,

CAVER CASE-ICE

EVAP-FRE, ASSY

ASSY

EVAP-FRE

MOTOR-FAN

COVER-MOTOR

CASE-ICE CUBE

SCREW-TAPPING

GR0MMET-MOTOR

HEATER-DRAIN

BUMPON-MOTOR

FAN-SIROCCO

SPRING-FAN

COVER-EVAP REAR

COVER-EVAP, FR, ASSY

CAP-SCREW

SCREW-TAPPIG

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10-3.

(SR-61KTC, 65KTC)

Refrigerator Compartment

COVER-LAMP,FRE

LAMP-INCANDESENT

SCREW-TAPPING

THERMO-FUSE, ASSY

SENSOR-ASSY

COVER-MOTOR

WIRE HARNESS-MOTOR

EVAP-REF

GROMMET-MOTOR

COVER-EVAP REAR

EVAP-REF, ASSY

MOTOR-FAN

FAN-SIROCO

SPACER-COVER EVAP

INS-ASSY

BUMPON-MOTOR

SPRING-FAN

COVER-EVAP,REAR,ASSY

SENSOR-ASSY

CATALYST-LTC

SEAL-CUTT, M/F

COVER-PURIFIER

CAP-SCREW

SCREW-TAPPING

COVER-EVAP, FRONT

SCREW-TAPPING

COVER-EVAP, FR ASSY

COVER-LAMP

SEAL-DUCG,REAR

SPACER-DUCT,A

SHELF-REF, UPP

COVER-DUCT,REF

CAP-SCREW

RAIL-CHIL ROOM,L

GROMMET-RAIL

COVER-DUCT,ASSY

CASE-VEG(L)

RAIL-CHIL RBM, R

SCREW-MACHINE

SHELF-REF UPP,ASSY

FIXER-ROLLER

ROLLER-FRE

CASE-VEG(R)

CASE-VEG, ASSY(L)

RAIL-VEG, MID

FIXER-ROLLER

ROLLER-FRE

TRAY CHILLED ROOM

SHELF-REF, ASSY

CASE-VEG, ASSY(R)

COVER-VEG, ASSY

－55－

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10-4.

(SR-61NMC,65NMC,69NMC)

Refrigerator Compartment

COVER-LAMP,FRE

LAMP-INCANDESENT

SCREW-TAPPING

THERMO-FUSE, ASSY

SENSOR-ASSY

SCREW-TAPPING

COVER-MOTOR

EVAP-REF

GROMMET-MOTOR

COVER-EVAP REAR

EVAP-REF, ASSY

FAN-SIROCO

BUMPON-MOTOR

SPACER-COVER EVAP

INS-ASSY

GROMMET-MOTOR

SPRING-FAN

SCREW-TAPPING

PBA-PANEL

ISCREW-TAPPING

KNOB0TEMP CONTROL,R

SENSOR-ASSY

COVER-EVAP,REAR,ASSY

CATALYST-LTC

COVER-PURIFIER

WIRE HARNESS ROTART

COVER-EVAP, FRONT

SEAL-CUTT, M/F

SCREW-TAPPING

CAP-SCREW

COVER-EVAP, FR ASSY

SCREW-TAPPING

SEAL-DUCG,REAR

COVER-LAMP

SPACER-DUG,A

COVER-DUG,REF

SHELF-REF, UPP

CAP-SCREW

RAIL-CHIL ROOM,L

COVER-DUG,ASSY

GROMMET-RAIL

CASE-VEG(L)

RAIL-CHIL RBM, R

SCREW-MACHINE

FIXER-ROLLER

ROLLER-FRE

SHELF-REF UPP,ASSY

CASE-VEG(R)

CASE-VEG, ASSY(L)

RAIL-VEG, MID

FIXER-ROLLER

ROLLER-FRE

TRAY CHILLED ROOM

CASE-VEG, ASSY(R)

SHELF-REF, ASSY

COVER-VEG, ASSY

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10-5. Related Components of CABI & UNIT (SR-61KTC,SR-65KTC)

SCREW-TAPPING

COVWE-PCB PANEL

PBA-MAIN

SCREW-TAPPING

C-OIL

CBF

SCREW-TAPPING

TRANSE-DC

SCREW-TAPPING

CORE-FERRITE

ABSORBER-COMP

C0OIL(REW)

CASE-PCB PANEL

TUBE-PVC

PIPE-SUB, COND ASSY

ASSY-CABI FOAM

COVER-HINGE UPP

COVER-COMP

SCREW-TAP TLTE

SHIN-HINGE

PIPE. CONNEG

HINGE-UPP

COVER-COMP, ASSY

GROMMET-SUB COND

SCOEW-TAPPING

BOMPON-MOTOR

BUMPON-MOTOR

SCREW-TAPPING

CAP-SCREW

MOTOR-FAN

GROMMET-MOTOR

FIXER-MOTOR CIRCUIT

SWITCH-DOOR

SHAFT

FAN-SIROCCO

SPRING-FAN

WIRE HARNESS

MOTOR

REINF-CASTER

SHIM-HINGE-MID

SCREW-TAP TITE

CASTER-FRONT

DRYER-ASSY

TRAY-DIWATER

SCOEW-TAPPING

PIPE-CONNEG,ASSY

HINGE-MID

WASHER

RIVET

SCREW-TAPPING

HING-MID-ASSY

SCREW-FRONT

COMPRESSOR

CLAMP-COMP

SCREW-SPECIAL

HINGE-LOW

TRAY-D/WATER ASSY

SCREW EARTH

DROMMET-COMP

WASHER

PTL-RELAY

SHIM-HINGE LOW

COVER-LEG FRONT

REINF-CASTER

CASTER FRONT

O/L-PROTELTOR

RIVET

COVER-RELAY

RIVET

SCREW-TAP TITE

FOOT-ASSY

CHASSIS-COMP

SCREW-TAP TITE

CASTER0REAR

CHASSIC-COMP ASSY

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10-6. Related Components of CABI & UNIT (SR-61NMC,SR-65NMC,69NMC)

SCREW-TAPPING

CBF

COVWE-PCB PANEL

SCREW-TAPPING

ABSORBER-COMP

PBA-MAIN

CASE-PCB PANEL

TUBE-PVC

C-OIL

PIPE-SUB, COND ASSY

ASSY-CABI FOAM

SCREW-TAPPING

COVER-HINGE UPP

FIXER-HINGE UPP

SCREW-TAP TLTE

SHIN-HINGE

COVER-COMP

PIPE. CONNEG

HINGE-UPP

COVER-COMP, ASSY

GROMMET-SUB COND

MOTOR-CIRCUIT

FAN-SIROCCO

SPRING-FAN

SCREW-TAPPING

CAP-SCREW

SCREW-TAPPING

SWITCH-DOOR

SHAFT

DRYER-ASSY

SHIM-HINGE-MID

SCREW-TAP TITE

PIPE-CONNEG,ASSY

HINGE-MID

WASHER

TRAY-D/WATER,ASSY

SCREW-TAPPING

HING-MID-ASSY

COMPRESSOR

CLAMP-COMP

SCREW-SPECIAL

HINGE-LOW

DROMMET-COMP

WASHER

PTL-RELAY

SCREW EARTH

SHIM-HINGE LOW

REINF-CASTER

COVER-LEG FR

O/L-PROTELTOR

CASTER FRONT

COVER-RELAY

SCREW-TAP TITE

FOOT-ASSY

RIVET

CHASSIS-COMP

SCREW-TAP TITE

RIVET

CASTER0REAR

CHASSIC-COMP ASSY

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10-7. Related Components of DOOR

HANDLE-FRE

ASSY-DOOR FRE

SCREW-MACHINE

REINF-HANDLE FRE

SCREW-TAPPING

SCREW-MACHINE

GUARD-FRE

HANDLE-FRE, ASSY

HANDLE-TRIM FRE

STOPPER-DOOR, FRE

PBA-PANEL

COVER-DISPLAY

BUTTON UPP,L

BUTTON LOW,L

STOPPER-DOOR

SCREW-HANDLE

CASE-DISLAY

BUTTON UPP,R

BUTTON LOW,R

GUARD-EGG

CASE-DISPLAY-ASSY

CASE-DLSPLAY, ASSY

GUARD-EGG, R

SCREW-TAPPING

TRAY-EGG

ASSY-DOOR FOAM REF

HANDLE-REF

SCREW-MACHINE

SWITCH-DOOR BUTTON

GUARD-EGG

HANDLE-TRIM REF UPP

REINF-HANDLE REF

CASE-DID UTILTY,A

CASE-DID UTILITY,B

GROMMETGUARD

GUARD-VARIETY

SCREW-TAPPING

GUARD-DID

GROMMET-HINGE DID

COVER-DID, UTILITY

CASE-DID UTILTY, ASSY

SHAFT-HINGE DID(LOW)

HANDLE-REF, ASSY

SCREW-MACHINE

HANDLE-TRIM, REF,LOW

SCREW-TAPPING

CAP-SCREW

GUARD-BOTTLE

FIXER-HANDLE,DID LOW

HOME BAR DOOR FOAM

STOPPER-DOOR, REF

FIXER-HANDLE,DID UP

HANDLE-DID

STOPPER-DOOR, LOW

SCREW-MACHINE

HOM BAR DOOR-ASSY

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11. DISASSEMBLE & ASSEMBLE METHOD (TURN OFF THE POWER OF REFRIGERATOR)

11-1. Disassemble and Assemble method of DOOR in nefrigerator

1. Disassemble lathch the top

cover of refrigerator

7. Disassemble fixed pivot to

arrow direction with catch

the door.

2. Disassemble fixed screw with

(+)driver

8. Up door to arrow, disassemble

through the side of door’s

fixed arrow direction the with.

3. Disassemble fixed volt in

door with six angles tool.

4. Disassemble door to arrow

direction

5. Disassemble latcl the beiow

covwe of refrigerator to arrow

direction.

6. Open protected of door wire

connector to arrow, disassemble

l housing and wire in the cilp.

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11-2. Replacement of freezer in door lamp

1) Remove the back cover lamp and then

in door lamp.

2) Fix the cover of in door lamp.

SR-61KTC

SR-61/65/69NMC

11-3. Replacement of refrigerator in door lamp

1) Remove a screw from cover and

disassemble the cover like example.

2) After replacing the indoor lamp, assemble

the back latch of cover and then fia screw.

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11-4. Disassemble of refrigerator cooling part

1) Push the cold storage and remove it

2) Remove foods and shelves inside the

Refrigerator

3) Push the cover of vegetable / fruit room and box

and pull it out.

4) disassemble the cap with (-)driver and remove

the 2 screws with (+)driver.

5) Push top of the cover in cooling part and remove

the locking point of lower step.

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6) Disassemble the wire housing of electric

assembly in the left.

7) Remove 3 screws of pull appart and disassemble it.

8) Pull the insulating material and disassemble the

electric housing.

9) Remove screws of evap. cover rear and release

the looking part of both left and right using

(-)driver.

la tch

Remove 2 screws

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●

Cooling cycle unit assembly in refrigerating compartment

2 holders securing evaporator

CABLE TIE

FOAM-LEX

TAPE-AL

(Groove for preventing

small ice when defrosting)

Temp·fuse

Temp·sensor

●

Cooling cycle unit cover assembiy in the refrigerating

Noise protector

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11-5. Disassembly of cooling part in the freezing room

1) Pull out the shelf.

2) Remove screws of evap covwe and release

the CAP SCREW vsing (-)driver.

3) Disconnect the each terminal of wire housing

on top of the left side.

4) Remove screws of evap cover rear and

release the locking point using (-)driver.

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11-6. Disjonting of DID door

1) Disassembie inner lower GROMMET of DID door

2) Disassemble DID door with up the iower HINGE

3)Assemble reverce order of disassemble,

●

Assembly specifcation of Freezer cooler part

Fixed screw

DARAIN-HEATER

9˚

EVAP-ASSY

FORM-LEX

Temperature fuse

Frasting sensor

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11-7.

Unit assembly

Remove a screw from the back lower cover of unit.

(SR-61/65KTC, SR-61/65/69NMC)

Assemble specification of unit.

Pace

condenser

Condenser

entrance

ꢁ

Motor fan

ꢁ

Hot pipe entrance

S-PIPE

ꢁ

Rubber for Noise

protector

ꢁ

Pace

condenser

entrance

ꢁ

Compressor

Rubber for Noise protector

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11-8. Electric box assembly

1. Disconnect the power cord.

2. Remove the cover of electrical box with insert driver.

3. Assembly specification of electric box.

TEST S/W

Condenser

EMI FILTER

FUSE

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11-9. Electric box assembly

1. Disconnect the power cord.

2. Remove the cover of electrical box with insert driver.

3. Assembly specification of electric box.

TEST S/W

FUSE

Condenser

TRANS-POWER

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12. PACKING

PACKING OF DOOR AND CABINET

TAPE:W48X100(2EA)

TAPE:W48X100(6EA)

TAPE:W48X150

FOAM-PE

PACKING EXAMPLE OF FRONT SIDE AND BACK SIDE.

EXAMPLE OF PERFECT PACKING

UPPER CUSHION:4EA

FILAMENT TAPE:W24XL2390

P.E BAG:1EA

TAPE:W48XL300(2EA)

DOOR GAPEPS

TAPE:W48X100(1EA)

LOWER CUSHION

(LEFT, RIGHT)

CORRUGATED

CARDBOARD BOX

PAD-CABINET:T10x1950xl400

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Circuit way

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13. Main Components Specifacations.

13-1) REGULATOR

3-TERMINAL 1A POSITIVE

TO-220

VOLTAGE REGULATORS

The KA78XX series of three-terminal

positive regulators are available in the TO-

220 package and with several fixed output

voltages, making them useful in a wide

range of applications. Each type employs

internal current limiting, thermal shut-down

and safe area protection, making it

essentially indestructible. If adequate heat

sinking is provided, they can deliver over

1A output current. Although designed

primarily as fixed voltage regulators, these

devices can be used with external

components to obtain adjustable voltages

and currents.

1:Input 2:GND 3:Output

■

FEATURES

■

ORDERING INFORMATION

ꢄOutput Current up to 1A

ꢄOutput Voltages of 5; 6; 8; 9; 10; 11; 12;

15; 18; 24V

Device

Package

Operating Temperature

KA78XX TO-220

KA78XXA TO-220

KA78XXI TO-220

ꢄThermal Overload Protection

ꢄShort Circuit Protection

ꢄOutput Transistor SOA Protection

0 ~ +125℃

-40 ~ +125℃

■

BLOCK DIAGRAM

INPUT

OUTPUT

SERIES

PASS

ELEMENT

CURRENT

SOA

GENERATOR

PROTECTION

STARTING

CIRCUIT

REFERENCE

VOLTAGE

ERROR

AMPLIFIER

THERMAL

PROTECTION

GND

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ABSOLUTE MAXIMUM RATINGS

(T = 25 unless otherwise specified)

Characteristic

Input Voltage (for Vo = 5V to 18V)

(for Vo = 24V)

Symbol

Value

Unit

Thermal Resistance Junction-Cases

Thermal Resistance Junction-Air

eJC

eJA

Operating Junction Temperature Range KA78XX/A

KA78XXI

0 ~ +125

-40 ~ +125

-65 ~ +150

OPR

Storage Temperature Range

STG

ELECTRICAL CHARACTERISTICS KA7805/I

MIN

MAX

(Refer to test circuit, T < T < T , I = 500mA, V = 10V, C = 0.33 F, C = 0.1 F, unless otherwise specified)

KA78051

KA7805

Characteristic

Symbol

Test Conditions

Unit

Min Typ Max Min Typ Max

4.8 5.0 5.2 4.8 5.0 5.2

T = 25

Output Voltage

5.0mA

1.0A, P^O

15W

4.75 5.0 5.25

V = 7V to 20V

V = 8V to 20V

V = 7V to 25V

4.0 100

1.6 50

4.0 100

1.6 50

T = 25℃

Line Regulation

V = 8V to 12V

= 0.5mA to 1.5A

100

T = 25℃

Load Regulation

= 250mA to 750mA

Quiescent Current

= 25

5.0

0.03 0.5

0.3 1.3

I = 5mA to 1.0A

Quiescent Current Change

= 7V to 25V

0.3 1.3

-0.8

V = 8V to 25V

Output Voltage Drift

Output Noise Voltage

Ripple

= 5mA

-0.8

mV/℃

V /

f = 10Hz to 100KHz T^A= 25

f = 120Hz

62 73

Rejection

= 8 to 18V

Dropout Voltage

Output Resistance

Short Circuit Current

Peak Current

= 1A, T^J= 25

f = 1KHz

230

2.2

230

2.2

= 35V, T^A= 25

= 25

MIN

MAX

ꢅT < T < T

MIN

MAX

KA78XXI : T = -40℃,

= 125℃

MIN

MAX

KA78XX, T = 0℃, T = 125℃

ꢅLoad and line regulation are specified at constant junction temperature.

Changes in VO due to heating effects must be taken into account separately.

Pulse testing with low duty is used.

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ELECTRICAL CHARACTERISTICS KA7812/I

MIN

MAX

(Refer to test circuit, T < T < T , I = 500mA, V = 19V, C = 0.33 F, C = 0.1 F, unless otherwise specified)

KA7812I KA7812I

Characteristic

Symbol

Test Conditions

Unit

Min Typ Max Min Typ Max

11.5 12 12.511.5 12 12.5

T = 25

Output Voltage

5.0mA

1.0A, P^D

15W

11.4 12 12.6

V = 14.5V to 27V

V = 15.5V to 27V

V = 14.5 to 30V

10 240

3.0 120

11 240

5.0 120

10 240

3.0 120

11 240

5.0 120

Line Regulation

V = 16 to 22V

= 5mA to 1.5A

Load Regulation

= 250mA to 750mA

Quiescent Current

= 25

5.1

0.1 0.5

0.5 1.0

I = 5mA to 1.0A

Quiescent Current Change

= 14.5V to 30V

0.5 1.0

-1

V = 15V to 30V

Output Voltage Drift

Output Noise Voltage

Ripple

= 5mA

-1

mV/

V /

f = 10Hz to 100KHz ,T^A= 25

f = 120Hz

55 71

Rejection

= 15V to 25V

Dropout Voltage

Output Resistance

Short Circuit Current

Peak Current

= 1A, T^J= 25

f = 1KHz

230

2.2

230

2.2

= 35V, T^A= 25

= 25

MAX

= 125

MAX

= 125

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3.3V VOLTAGE DETECTOR

The KA7533 prevents error of system from

supply voltage below normal voltage level

at the time the power on and instantane

ous power off in systems.

FEATURES

Detecting against error operations at the

power ON/OFF.

Resetting function for the low voltage

microprocessor.

Checking low battery.

ORDERING INFORMATION

Device

Package

Operating Temperature

KA7533Z TO-92

-30 ~ +75

BLOCK DIAGRAM

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ABSOLUTE MAXIMUM RATING

(T = 25

)

Characteristic

Supply Voltage

Symbol

Value

-0.3 ~ +15.0

3.3

Unit

Detecting Voltage

DET

Hysteresis Voltage

HYS

Operating Temperature

Storage Temperature

-30 ~ +75

-50 ~ +150

200

OPR

STG

Power Dissipation

Detecting Voltage Temperature Coefficient

0.01

DET

ELECTRICAL CHARACTERISTICS

(T = 25

)

Characteristic

Detecting Voltage

Symbol

Test Conditions

Min

3.15

Typ

3.3

Max

Unit

DET

3.45

0.25

0.1

R = 200 , V

0.4V

Low Output Voltage

R = 200

Output Leakage Current

Hystersis Voltage

LKG

= 15V

HYS

100

R = 200

Detecting Voltage

DET

0.1

R = 200

Temperature Coefficient

Circuit Current (at on time)

Circuit Current (at off time)

Threshold Operating Voltage

CCL

300

500

DET(MIN)

= V

-0.05V

CCH

= 5.25V

TH(OPR)

0.6

0.8

1.0

R = 200

0.4V

Transmission Delay Time

R = 1.0 , C = 100pF

Output Current (at on time

)

DET(MIN)

= V

- 0.05V, T = 25

DET(MIN)

= V

- 0.05V,

T = -30 ~ +75

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2981THRU

2984

8-CHANNEL SOURCE DIRVERS

Recommended for high-side switching applications that benefit

from separate logic and load grounds, these devices encompass

load supply voltages to 80 V and output currents to -500mA. The

UDN2981A through UDN2984A/LW 8-channel source drivers are

useful for interfacing between low-level logic and high-current loads.

Typical loads include relays, solenoids, lamps, stepper and/or servo

motors, print hammers, and LEDS.

All devices may be used with 5 V logic systems - TTL, Schottky

TTL, DTL, and 5 V CMOS. The UDN2981A and UDN2982A/LW are

interchangeable, will withstand a maximum output OFF voltage of 50 V

and operateto a minimum of 5 V;the UDN2983A and UDN2984A/LW

drivers are interchangeable, will whthstand an output voltage of 80 V,

and operate to a minimum of 35 V. All devices in this series integrate

input current limiting resistors and output transient suppression diodes,

and are activated by an active high input.

GND

The suffix’A’(all devices) indicates an 18-lead plasitic dual in-line

package with copper lead frame for optimum power dissipation. Under

normal operating conditions, these devices will sustain 120 mA continu-

ously for each of the eight outputs at an ambient temperature of +50

and a supply of 15 V

ABSOLUTE MAXIMUM RATINGS

at 25

Output Voltage Range, V_CE

(UDN2981A & ............... 5 V to 50 V

UDN2982A/LW)

(UDN2983A &

UDN2984A/LW).......... 35V to 80 V

Input Voltage V_IN

(UDN2981A & UDN2983A)........ 15V

(UDN2982A/LW &

The suffix ‘LW’ (UND2982LW and UDN2984LW only) indicates

a surface-mountable wide-body SOIC pakage. All devices are also

available for operation between-40 and +85

To order, change

the prefix form ‘UDN’ to ‘UDQ’.

UDN2984A/LW)........................ 20V

Output Current, I_OUT................-500mA

Package Power Dissipation,

P_D................................... See Graph

Operating Temperature Range,

FEATURES

TTL, DTL, PMOS, or CMOS Compatible inputs

600mA Output Source Current Capabilty

Transient-Protected Outputs

_A........................... -20 to +85

Storage Temperature Range,

_S......................... -55 to +150

Output Breakdown Voltage to 80 V

DIP or SOIC Package

Note that the ULN2000A Series (dual

in-line package) and ULN2000L

series (small-outline IC package) are

electrically identical and share a

common pin number assignment.

Always order by complete part number, e.g.,

Note that all devices are not available in both package types.

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FOR SAFETY OF SERVICE CAUTION

●Turn off the power of refrigeration when the change and repair of electric control equipment.

→ Be caful electric shock

● use the regular parts when change the electric control equipment.

→ check the named MODEL, regular power, regular electric current and movement temp.

● When repaired, cross line of HARNESS is firm and no dangerous of water infiltration.

→ When the regular force, it isn’t seperate.

● When repaired, remove the HOUSING parts, cross line parts, point of contact parts and so on.

→ Prevent danger of fine the TRACKING, SHORT and others

● Check the infiltrate marks of water in electric control equipment.

→ Be infiltrate marks of water, change parts and others.

● Check assemble state of parts after repair the trouble

→ Keep the same state before it

● Check using environment of refrigerator.

→ Change the using direction when it is full of moisture, water and unstable the institution state.

● When ground connection needs, It could do it.

→ Especially, it is ground connection when danger of electric leakage about moisture or water.

● Do not plug multiple electrical appliances into the same outlet.

● Check be damaged, pressed, impressed, raging fire of power plug and outlet.

→ Badness the power plug or power outlet, it is repair.

→ Manage power code what it isn’t impressed and pressed.

● Don’t store unstable the food and at the freezer bottle.

● Don’t repair the manufacture to consumer.

● Never store expect the foods in the refrigerator.

→ Medical supplies, chemical fertilizer: Difficult the exactly temp. maintenance

→ The inflammables(Alcoholes, benzene, ether, LP gas, etc): dange of explosion.

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ELECTRONICS

272, Oseon-Dong, Kwangsan-Gu,

Kwangju-City, Korea, 506-253

TEL : 82-62-950-6810, 6811

FAX : 82-62-950-6829

Refrigerator Division 2001. 06

Printed in Korea

Code-No :

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