REFRIGERATOR

Model : SR-L677EV

SR-L679EV

SR-L627EV

SR-L629EV

GREEN

REFRIGERATOR

SR-L677EV

SR-L679EV

SR-L627EV

SR-L629EV

1. Precautions

CONTENTS

2. Product Specifications

3. Electrical Part Specifications & Standard

4. Circuit Diagram

5. Functions & Operating Instruction

6. Circuit Descriptions

7. Trouble shooting

8. Exploed View

9. Disassembly & Assembly

10. PCB Circuit Diagram

11. PCB Parts List

12. Specifications of Main Components

1. Precautions

Warning : Please abide by the following precautions in order to conduct the maintenance procedures in a safety fashion.

1-1. Caution when you replacing compressor.

• Do not smoke. Remove all the possible ignition sources and then replace compressor in wellaired places.

• Don’t use welding machines if R600a refrigerant does not exposed.

• In the case of gas leakage, always open the windows.

• When cutting the SUCTION, DISCHARGE pipe of the compressor, always take caution of the inner pressure of the remaining gas.

1-2. Take out the power plug

• Always take out the power plug from the outlet when doing repairs.

1-3. Be careful of electric shocks

• When inspecting the circuit, don’t touch the battery charger and be careful of electric shocks.

1-4. Use proper components

• Always use the component labeled in the service component chart when replacing components for repairs.

1-5. Use proper tools

• Always use proper tools for repairs. If worn out tools are used, it would cause defects in tuning and electrical contact, leading to accidents.

1-6.

When doing repairs, inspect the POWER

CORD or whether there is fire in the lead wire and make sure they are replaced.

1-7. Cutting of LEAD-WIRE

• For connecting the lead-wire that has been cut off, use soldering or connector and always disconnect the vinyl tapes.

1-8. Check for disconnection

• After completing the assembly, always measure the disconnection resistance level, and turn on the power after checking it is above 1M

Ω

.

1-9. Earth

• Check the status of earthing and repair the incomplete ones.

1-10. Be careful of children

• There is always the possibility of danger when doing repairs so make sure that children can’t come nearby.

Cleaning : After completing repairs, clean the surrounding area and the refrigerator and tell the consumer about the repairs being made.

This appliance contains a small amount of the refrigerant isobutane(R600a), a natural gas with high environmental compatibility but which is also combustible. When transporting and installing the appliance, care should be taken to ensure that no parts of the refrigerating circuit are damaged.

Refrigerant squirting out of the pipes could ignite or cause an eye injury. If damage occurs nevertheless, avoid any flames or potential sources of ignition, and air the room in which the appliance is standing for several minutes.

• In order to avoid the creation of a flammable gas-air mixture if a leak in the refrigerating circuit occurs, the size of the room in which the appliance may be sited depends upon the amount of refrigerant used. The room must be

1m 3 in size for every 8 g of refrigerant R600a inside the appliance. The amount of refrigerant contained in your particular appliance is shown on the identification plate inside the appliance.

• Never start up an appliance showing any signs damage. If in doubt, consult your dealer.

Refers to prohibition.

Refers to prohibition of dismantling.

Refers to prohibition of contact.

Refers to guidelines which have to be followed.

Refers to detaching the power plug from the outlet.

Refers to earth connection for preventing electric shocks.

Warning

Caution

Refers to possibility of death or serious injury of a person.

Refers to possibility of injury of a person or damage to property.

2

2. Product Specifications

Model

Type

Freezer performance

Temperature control

Net Capacity l /(ft

3

)

Water dispenser

Total

Freezer

Refrigerator

Total

Gross Capacity l /(ft

3

)

Freezer

Refrigerator

Foam

Liner

Net dimension

(W X D X H)

Cabinet insulation

Door insulation

Cabinet

Door

Net weight

SR-L629EV SR-L679EV SR-L627EV SR-677EV

LMF 2 Door

(4-STAR)

Electronic control

Yes

501(17.69) 551(19.46) 506(17.87)

No

556(19.63)

143(5.05)

358(12.64)

161(5.68)

390(13.77)

143(5.05)

363(12.82)

161(5.68)

395(13.95)

526(18.57)

168(5.93)

575(20.30)

185(6.53)

531(18.75)

168(5.93)

580(20.48)

185(6.53)

358(12.64) 390(13.77) 363(12.82) 395(13.95)

820 X 720 X 1790 (mm) (SR-L629(7)EV)

820 X 770 X 1790 (mm) (SR-L679(7)EV)

103Kg

CYCLO-PENTANE

CYCLO-PENTANE

A.B.S

A.B.S

108Kg 102Kg 107Kg

3. Electrical part specifications & standard

ITEM

Model

Rated Voltage

Frequency

Compressor

Model

Starting type

Refrigerant

Freezer

Evaporator

Refrigerator

Condenser

Dryer

Oil Charge

Capillary tube

Earth screw

Door switch

STANDARD

SR-L629EV, SR-L679EV, SR-L627EV, SR-L677EV

230-240V

50HZ

MK4A3Q-L1U

230-240V

50HZ

DK182Q-L2U

220V

50-60HZ

SK190H-L2U

RSCR

127V

60HZ

DK172P-L2U

(MK172P-L2U)

115V

60HZ

DK172C-L2U

(MK172C-L2U)

R600a

2GSD(Mineral),

280cc

Freol α

R134a

-15c(Ester), 265cc

Freol

α

-15c(Ester), 265cc

(Freol

α

-10c(Ester), 265cc)

Split Fin & Tube Type

Split Fin & Tube Type

ID0.82

X L3500,

5.10kg/cm 2

Forced & Natural Convection Type

Molecular Sieve XH-9

ID0.82

X L3000 4.64kg/cm 2

BSBN(Brass screw)

DC12V

0.5A(S2PF101B)

AC250V 0.7A, AC125V 1.4A(SSD-6D)

3

Freezer

ITEM

Refrigerator

Type

F-Sensor

Type

F-Sensor

Temperature Selection

–25˚C

–19˚C

–14˚C

Temperature Selection

1˚C

4˚C

7˚C

ON(˚C)

–23.5˚C

–17.5˚C

–12.5˚C

ON(˚C)

2.5˚C

5.5˚C

8.5˚C

STANDARD

OFF(˚C)

–26.5˚C

–20.5˚C

–15.5˚C

OFF(˚C)

–0.5˚C

2.5˚C

5.5˚C

Defrosting

First Defrost Cycle

(Concurrent Defrost of F and R)

Defrost Cycle(FRE)

Defrost Cycle(REF)

Pause Time

4hr ± 10min

6 - 22hr(Vary according to the conditions used)

6 - 11hr(Vary according to the conditions used)

10 ± 2min

Sensor

Freezer-Sensor

Refrigerator-Sensor

FRE Evap-Sensor THERMISTOR (502AT), SPEC:5.0K

Ω

AT 25˚C

REF Evap-Sensor

Ambient TEMP-Sensor

Defrost Heater(FRE) 242W (115V, 127V, 220V, 240V)

Drain Heater(FRE) 52W(115V, 127V, 220V, 240V)

Heater

Defrost Heater(REF) 120W(115V, 127V, 220V, 240V)

Drain Heater(REF) 38W(115V, 127V, 220V, 240V)

Fuse

Rated Voltage

Frequency

Compressor

Condenser

Thermal-Fuse for preventing overheating of Freezer Defrost-Heater

Thermal-Fuse for preventing overheating of Freezer Defrost-Heater

230-240V 230-240V

50Hz 50Hz

MK4A3Q-L1U DK182Q-L2U

STARTING

RUNNING

220V

50-60Hz

SK190H-L2U

RSCR

Over-Load

Protector

STARTING-

RELAY

MOTOR-

FAN

MODEL

TEMP. ON

TEMP. OFF

MODEL

OPERATION

FRE.

REF.

CIRCUIT

350VAC, 3.5

㎌

4TM232PHBYY-53

125 ± 5

69 ± 9

J531Q35E330M385-2

350VAC, 5.0

㎌

4TM265RHBYY-53

130 ± 5

69 ± 9

J531Q35E330M385-2

33 ± 20%

IS3210-SNL5C

33 ± 20%

IS3210-SNL5C

IS3208-SNL5B

IS3208-SCL5A

IS3208-SNL5B

IS3208-SCL5A

350VAC, 8.0

㎌

4TM314RHBYY-53

130 ± 5

69 ± 9

J531Q34E220M3502

250VAC, 12 ㎌

4TM435PHBYY-53

125 ± 5

69 ± 9

J531Q33E100M200-2

22 ± 20%

IS3210-SNF*B

10 ± 20%

IS3210-SNP6D

IS3208-SNF7D

IS3208-SCF7A

AC250V 10A 77

127V

60Hz

DK172P-L2U

(MK172P-L2U)

IS3208-SNP6H

IS3208-SC06A

± 5˚C

115V

60Hz

DK172C-L2U

(MK172C-L2U)

250VAC, 12

130

69

10 ±

±

± 9

5

㎌

4TM437RHBYY-53

J531Q33E100M200-2

20%

IS3210-SNP6D

IS3208-SNP6H

IS3208-SCH6A

240V/15W 110V-130V/15W

LAMP

FRE.

REF.

240V/25W 110V-130/30W

4

4. Circuit Diagram

4-1. 230V-240V/50Hz, 220v/50Hz,60Hz, 127V/60Hz, 115V/60Hz

5

4-2. 230V-240V/50Hz, 60Hz, 220V/50Hz,60Hz, 127V/60Hz, 50Hz, 115V/50V,60Hz(INVERTER PCB)

F-ROOM SENSOR

R-ROOM SENSOR

DEFROST SENSOR.F

DEFROST SENSOR.R

F-DOOR S/W

R-DOOR S/W

PANEL PCB

BLU

YEL

ORG

PRP

GRY

BLK

BRN

WHT

S/BLU

MAIN PCB

CN30 CN10

CN70

BLK

BLK

BLK

BLK

S/BLU

BRN

WHT

YEL

DC TRANS

N

THERMAL FUSE

E

GRY

A

2

PTC

5

M

RUNNING CAPACITOR

3 6

S

F-DRAIN HEATER

DEFROST HEATER.F

DEFROST HEATER.R

R-DRAIN HEATER

COMPRESSOR

C

3

1

2

O.L.P

F-THERMAL FUSE

R-THERMAL FUSE

COMP COOLING FAN

GRY

CN50

BLK

BRN

REF

ORG

YEL

PNK

BLU

PRP

GRY

WHT

S/BLU

CN71

W/BLK R/LAMP INVERTER

FLUORESCENT LAMP

ORG

BLU

F-ROOM FAN

PNK

RED

F-ROOM LAMP

R-ROOM FAN

R-LAMP HEATER

BLU-BLUE

BRN-BROWN

E-EARTH

GRY-GRAY

ORG-ORANGE

PNK-PINK

PRP-PURPLE

RED-RED

S/BLU-SKY BLUE

WHT-WHITE

YEL-YELLOW

BLK-BLACK

W/BLK-WHITE/BLACK

6

5. Function & Operating Instruction

5-1. Product Dimension

"X"

"Y"

MODEL

SR-L679EV

SR-L677EV

SR-L629EV

SR-L627EV

A

1790

1790

1790

1790

B

1013.5

1013.5

1013.5

1013.5

C

1508

1508

1458

1458

D

755

755

705

705

E

667

667

617

617

Remarks

"X"

"Y"

"X"

"Y"

7

5-2. Part Name & Disassembly

• Top tray disassembly

Pull it forward.

Take out food stuffs and pull it out by following the arrow.

•

• Tray disassembly

Pull it out by following the arrow.

•

•

•

•

•

•

• Ice compartment

Take out the water bottle with the bottom lever pressed.

• Vegetable compartment • Freezing compartment

8

5-3. Circulation of Refrigerant (H.M CYCLE)

Compressor → Sub condenser → Cluster pipe → Hot pipe → Dryer → Capillary tube

→ R-Evaporator → F-Evaporator → Accumulator → Suction pipe → Compressor

9

5-4. Cool Air Circulation

10

5-5. Temperature Control and Other Capacity Explanation

1. Display design

2. Temperature control function

1) Temperature selection of freezer compartment

❈ After the initial key selection, it displays the notch which is presently set up, then within 5 seconds re-memorize the key after 1-2) points mentioned below. If there is no input of the key, it moves back to the previous temperature display.

1-1) From -14˚C ~ -25˚C, each one key is selected in 1˚C interval.

1-2) Selection key operation for Freezer is set up orderly.

1-3) Actual temperature is indicated during both Power-On and electrical failure.

1-4) Standard temperature of each stage is as follows.(standard for 1/3 height)

Stage 1 2 3 4 5 6 7 8 9 10 11 12

Temperature -14˚C -15˚C -16˚C -17˚C -18˚C -19˚C -20˚C -21˚C -22˚C -23˚C -24˚C -25˚C

1-5) After key input, seven-segment indication changes immediately but actual function operates after 10seconds.

2) Temperature selection of refrigerator compartment

2-1) From 7˚C ~ 1˚C, each one key is selected in 1˚C interval.

2-2) After the initial key selection, the former selected temperature is displayed, and within

5seconds temperature selection alters as in 2-3), and when final key input is done, the final key input temperature converse into a set point after 10 seconds.

2-3) Set up is established orderly according to operation of selection button.

2-4) Actual temperature is indicated during both Power-On and electrical failure.

2-5) Standard temperature of each stage is as follows.(standard for 1/3 height)

Stage

Temperature

1

7˚C

2

6˚C

3

5˚C

4

4˚C

5

3˚C

6

2˚C

2-6) After key input seven-segment indication changes immediately but actual function operates after 10seconds.

7

1˚C

11

3) Quick freeze

3-1) Press the on/off buttons of Quick Freeze so that the lamp of Quick Freeze is light up and off and then it operates it’s function automatically.

3-2) It does not indicate from initial Power on.

Remark

Change of light indication

Initial Power On

Off

Pressed once time

Quick Freeze On

Pressed second time

Off a) When Quick Freeze is selected, LED indication will immediately change but actual operation operates after 10 seconds. (COMP and FAN operates continuously for 2 hours and 30 minutes and it switches off automatically.) b) When Quick Freeze is selected, it will operate unconditionally without considering the temperature of freezer compartment.

c) During the operation, the temperature of refrigerator compartment is controlled automatically by the selected temperature.

d) Temperature display of freezer displays actual temperature.

4) Quick cool.

4-1) Press the on/off buttons of Quick Cool so that the lamp of Quick Cool is light up and off then it operates its function automatically.

4-2) It does not indicate from initial Power on.

Remark

Change of light indication

Inition Power On

Off

Pressed Once time

Quick Cool On

Pressed second time

Off a) When Quick Cool is selected, LED indication will immediately change but actual operation operates after 10 seconds. b) When Quick Cool is selected, COMP and R-Fan are operate until the temperature of refrigerator compartment reached -2°C but the maximum operation time of Quick Cool is 2 hours and 30 minutes. So that, it switches off automatically after 2 hours and 30 minutes.

c) During the operation, the temperature of freezer compartment is controlled automatically by the selected temperature.

d) Temperature display of refrigerator displays actual temperature.

❈ If you press Quick Freeze and Quick Cool button concurrently, each function operates independently.

Reference

If you choose Quick Freeze or Quick Cool when freezer temperature is more than -10°C and refrigerator temperature is above +10°C just as the initial Power On Condition, it operates differently from what is mentioned above, and this is an exceptional case.

12

5) Sabbath function

5-1) It will turn to sabbath function if you press freezer and refrigerator temperatune button together for 5 seconds.

5-2) When turned to sabbath function, all of the front display of LED turn off.

5-3) The light will not switch on even when the door is opened, and if it was switched on then it will switch off.

5-4) To cancel the operation, you have to press freezer and refrigerator temperature button together again for 5 seconds.

❈ This function is used only in special area.

3. Buzzer alarm function

1) Touch button type (ding-dong sound)

1-1) there is "ding-dong" sound to confirm input periodically for each one second for button operation in each control panel.

1-2) key recognition is within 0.2 sec and "ding" sound beeps in continuous key recognition.

1-3) key recognition sound will first activate in other information.

2. Alarm when door is open

2-1)Alarm melody will run if door of freezer or refrigerator is open for 2 minutes or more.

2-2) If door continue to remain open alarm will run periodically.

2-3) Alarm will immediately stop when door is closed.

3. Forced running alarm and forced defrost alarm (beep sound).

3-1) If forced running, or defrost is chosen, there is a beep sound.

3-2) Once you press forced running test button, it will beep until you choose cancellation or it cancel automatically (0.25sec ON/0.75sec OFF)

3-3) It will beep even during defrost is complete (include paused time) or until cancel button is pressed.

3-4) During forced running alarm runs 0.1sec on and 1sec off, and during forced defrost alarm runs as well 0.5sec on and 0.5sec off.

4. Defrost function

1) Once power is on and COMP is ON for 4 hours, both refrigerator and freezer starts to defrost at the same time.

2) When the defrost time is reached, F-Fan and COMP runs pre-cooling for 20 minutes and starts heating activity then the pause time is operated about 8 ~12 minutes(10 ± 2minutes).

3) Actual defrost period is from minimum 6 hours up to maximum 11 hours, and freezer compartment defrost period is from min. 12 hours up to max. 22 hours instantaneously

(COMP ON for additional period).

4) The decision of defrost period is maded by the ambient temperature and the count of door open and the length of door open time.

5) Defrost periods memorize these information at MICOM as a case per hour. Therefore, case of defrost period distinguishes per hour.

6) Influences of count and length of door open for time distinguisher get checked from the door switchs of refrigerator compartment and freezer compartment.

7) If refrigerator compartment temperature is over trset -on+6˚C (at ambient temp. is over 21˚C) or trset-on+2˚C (at ambient temp is over 33˚C), COMP is runned by refrigerator compartrment temperature. In this case, the defrost heater of refrigerator compartment starts after 2 hours running of COMP.

8) After 7) is proceeded, the concurrent defrosting of freezer and refrigerator start after 4 hours

4 hours running of COMP.

9) If defrost operation is reached during quick freeze operation, quick freezer operation is finished first and then defrost operation is proceeded.

13

5. Test function

❈ Test function is for the test of PCB, product, official inspection and ability of SVC.

❈ When s/w test is chosen and tested the product, you switch off and on again then let it run a self-test.

1) Function of forced running.

1-1) If you choose PCB button once, COMP will automatically start.

1-2) When forced running is chosen, freezer will show “FF” and “1” in refrigerator automatically.

when this option is selected and 1 minute is past, temperature memorized will not change even if you select defrost or cancel test activation (maintains F:-25˚C and R:1˚C).

1-3) Forced running will activate only for 24 hours in full-down operation. Freezer and refrigerator will automatically activate.

1-4) To cancel forced running power is off and on again or select test cancel mode.

1-5) During forced running alarm (0.25sec ON/ 0.75 sec OFF) runs until it is completed. The alarm will continue without alarm key selection.

1-6) When forced running is selected, quick freeze operation does not activate.

2) Forced defrost function

2-1) When you press test button once more during forced running refrigerator compartment activates defrost.(R-defrost only)

2-2) If you press button once more, freezer defrost will start at the same time with refrigerator.

2-3) If forced defrost function is selected, forced running will automatically cancel. And after forced defrost is completed, it will proceed normal operation.

3) Test cancel mode

3-1) When you press test button once more during forced defrost in freezer and refrigerator, it proceeds normal operation.

3-2) Alarm will stop during test cancel mode.

6. Function of initial Power ON

1) When power ON, refrigerator proceed initial self-test and, if normal, it indicate LED in all operation panel for 2 seconds.

2) When proceeding self-test and if temperature sensor finds fault sensor, LED displays the relatecl LED(see table 1.) for periods of 0.5 sec of related LED.

3) Switch on all LED for 2 sec. Initial display of freezer and refriger show actual temperature.

4) Keep condition of R-defrost heater and F-defrost heater for 3 sec for interval of 0.5 sec.

5) If F and R- defrost is finished at initial condition, COMP, F-fan and R-fan activates intervals with 0.5 sec without inner temperature condition.

7. Power failure compensating function

1) function of notch save.

1-1) When you press quick freeze, quick cool, freezer, refrigerator button, micom save present operating and display condition. Once the power is re-instated, the appliance will continue to operate at the most recent temperature setting (except test mode.)

1-2) 1-1) Activity proceeds when F-evap. and R-evap. Temperature is below 10˚C added together at initial power ON, it will activate, and if its more than 10˚C it goes back to initial mode activity. Quick freeze, quick cool and Sabbath function get not selected.

1-3) If power gets off during quick freeze, quick cool or sabbath function and then the power is re-instated, the appliance will proceed quick freeze or quick cool function again at least one of F-evap. or R-evap. temperature is below 10˚C.

14

❈ Exhibition mode

1. When you press quick freeze button and freezer temp. button together the operation changes into exhibition mode.

2. In exhibition mode, compressor is immediately off and defrost do not activate.

3. If you press quick freeze button and freezer temp. button together for 5 sec exhibition mode cancel out and bact to nomal operation.

8. Self-test function

1) Define of the fault temperature sensor : temperature of the sensor is over between -50 ˚C

(4.5volt) ~ +50 ˚C (0.5volt)

1-1) Self-test fuction due to power ON.

a) When a power is ON, it internal MICOM will decide faulty in temperature within 1 sec.

b) If faulty sensor is found, the “related display LED” switches on and off for 0.5 sec intervals. And it will not beep (refer to self-test faulty indication table).

c) At the LED situation is the faulty sensor display, self-test function key ( press quick freezer and quick cool button for 5 sec) is the control of normal temperature is delayed.

d) Fixing default sensor when there is an error, or press quick freeze and quick cool button for 5 sec., it automatically cancel and activate normally.

2) Self-test function during normal activation a) During normal activation, if you press quick freeze and quick cool key together for 3 sec.

temperature selection display of all ON/ OFF show for 2 sec by 0.5 intervals. Including this 2 sec, press quick freeze and quick cool button together for 5 sec then it select selftest function.

b) If there is ding-dong sound it change into self-test function. If you press refrigerator temp.

selection button during 2 sec display toggle, it proceeds as the display function of the presently operating parts.

c) If there is an error of the sensor, display of the faulty sensor continue for 30 sec then activate normally (ding-dong alarm activates).

d) Button selecting is not selected during self-test proceeding.

15

Table 1. Display table of self diagnosis.

No Item Display LED

1

R-sensor Refrigerator

Symptom

• Open faulty

• Short faulty

2

R-area defroster sensor

Refrigerator

• Open faulty

• Short faulty

3

Outer sensor Freezer

• Open faulty

• Short faulty

Remark

•Suspected to be below -50 ˚C

•Suspected to be over +50 ˚C

•Suspected to be below -50 ˚C

•Suspected to be over +50 ˚C

•Suspected to be below -50 ˚C

•Suspected to be over +50 ˚C

4

F-sensor Freezer

• Open faulty

• Short faulty

•Suspected to be below -50˚C

•Suspected to be over +50˚C

5

F-area defroster sensor

Freezer

• Open faulty

• Short faulty

•Suspected to be below -50

•Suspected to be over +50

˚C

˚C

9. Display function of the presently operating parts.

1) If you press quick freeze and quick cool button together for 3 sec during normal operation,

LED display refrigerator and freezer temperature will show ON/OFF for 2 sec at interval of

0.5 sec

16

2) At this moment if you take off quick freeze and quick cool button and press refrigerator temp.

button (ding-dong sound), it change into the display of the presently operating parts.

3) This display condition is unrelated to actual operation and it is an reference of indication that

MICOM commanded operating order).

Table 2. Display table of the presently operating parts.

No

10

11

12

7

8

9

5

6

3

4

1

2

Content

R-fan

R-defrost heater

Initial start mode

Over load mode

Low temp.mode

Exhibition mode

Comp

F-fan

F-defrost heater

F-Lamp

R-Lamp

Normal mode

Display LED

1 st letter “a” led in refrigerator

1 st letter “c” led in refrigerator

1 st letter “d” led in refrigerator

1 st letter “e” led in refrigerator

1 st letter “f” led in refrigerator

1 st letter “g” led in refrigerator

1 st letter “a” led in freezer

1 st letter “b” led in freezer

1 st letter “d” led in freezer

1 st letter “a” led in freezer

1 st letter “b” led in freezer

1 st letter “e”, ”f” led off in refrigerator

Operation

Include R-fan activation

Defrost heater activation

Initial power is switched ON

Outer temperature is over 35˚C

Outer temperature is below 20˚C

Exhibition mode is operated together

Led ON when COMP activation is included

Led ON F-fan activation is included

Led ON when F-heater activation is included

Led ON when F-lamp activation is included

Led ON when R-lamp activation is included

Out temperature is about 21˚C~34˚C

Remark

Ref. 6.button scan and display circuitry

(see page 21)

10. Actual temperature and selected temperature in display function

1) Initial power ON

1-1) When initial power On is set, it reads both inner temperature of freezer and refrigerator.

Display range of freezer is -35 ˚C ~+30 ˚C and refrigerator -9 ˚C ~+9 ˚C .

1-2) After this, if freezer inner temperature of a trset_off+1 ˚C above is recognized at least once,

LED display of freezer will change into a set-up temperature. And if refrigerator inner temperature of trset_ off +3.5

˚C above is recognized at least once, LED display of refrigerator will change into a set-up temperatures. After all this, if freezer inner temperature is above 0 ˚C and refrigerator inner temperature above +15 ˚C it will proceed display blinking. But blinking operation only starts 10 minutes after it senses its problem with inner temperature.

1-3) During the actual temp. dispaly condition, you choose quick freeze or quick cool function the LED display will display actual temperature.

2) Stability in inner temperature

2-1) After selected temp. is reached, freezer and refrigerator display the selected temp.

a) If freezer inner temperature is above 0 ˚C for 10 minute, the display of the selected temp.

will blink.

b) If refrigerator inner temperature is above 15 ˚C for 10 minute, the display of the selected temp. will blink.

c) When quick freeze is chosen, only freezer display will display actual temperature and the actual temperature displays up to -35 ˚C .

17

3) Door open when door is open, the related display shows an actual temperature.

3-1) Display range of freezer is -35 ˚C ~ 30 ˚C and refrigerator is -9 ˚C ~9 ˚C .

3-2) If freezer inner temperature is above 0 ˚C for 10 minute, the display of the selected temp.

will blink.

3-3) If refrigerator inner temperature is above 15 ˚C for 10 minute, the display of the selected temp. will blink.

3-4) When door is open, 1 ˚C will increase after delay time from the display before door opens. When door close, 1 ˚C will decrease after delay time if there is a change in inner temperature. Temperature will reach up to presently selected notch.

4) Defrost Display function

4-1) If defrost starts both freezer and refrigerator display the selected temperature. So it will not blink for 2 hours even if it sensed faulty in inner temperature, after 2 hours it will decide to blink or not.

Reference

State of COMP cooling fan according to the ambient temperature (When COMP. is re-started)

- always OFF COMP cooling fan when ambient temperature is below 5˚C.

- COMP cooling fan always switch ON after 9 minute when ambient temperature is 6˚C~10˚C.

- COMP cooling fan always switch ON after 6 minute when ambient temperature is 11˚C~15˚C.

- COMP cooling fan always switch ON after 3 minute when ambient temperature is 16˚C~21˚C.

- COMP cooling fan always switch ON when ambient temperature is over 21˚C.

(PCB Part List)

NO CODE NO ITEM SPEC Q’ty Remark

9

10

11

12

13

7

8

5

6

3

4

1

2

DA41-00099A

DA41-00099B

DA41-00102A

DA26-30111H

DA26-30111F

DA26-30111C

DA32-00006C

DA32-00006C

DA32-10109H

DA32-10105A

DA41-00013B

DA41-20160A

DA41-20148A

PBA MAIN

PBA MAIN

PBAPANEL

DC TRANS

F, R DEF SENSOR

F, R DEF SENSOR

R SENSOR

F SENSOR

INVERTER PCB

W2 PJT

W2 PJT

W2 PJT

220~240V/50, 60Hz

105V/50,60Hz

127V/50,60Hz

PX-41C

PX-41C

PX-41C

PX-41C

220~240V/50,60Hz

127V/50,60Hz

105~115V/50,60Hz

1

1

1

1

1

1

1

1

1

1

1

1

1 AHAM OPTION

Different according to the source of power

Different according to the source of power

❈ code for temperature might change due to after the progress in development in products

18

6. Circuit Descriptions

6-1. Power circuit

Voltage

(DC 12V)

Vcc (DC 5V)

Circuit used

Relay Operation & LED Display

Power around MICOM & Sensor Detector

1) The input AC voltage of DC-trans secondary registers 8V at CN10 between ①~③ . The rectified voltage passed through D101 ~ 104 becomes DC 5V through voltage regulator MC7805(REG1).

The power(DC5V) is supplied to the power around micom and sensor detector.

2) The input AC Voltage of DC-trans secondary registers 15V at CN10 between ⑤~⑦ . The rectified voltage passed throush D105 ~ D108 becomes DC 12V through voltage regulator MC7812CT

(REG2). The power (DC12V) is supplied to the relay operation and LED display.

19

6-2. Oscillator

Port Oscillating Frequency

Xin(#19)

4.00MHz

Xout(#20)

4.00MHz

±0.5% Error

6-3. Reset Circuit

It is designed for clock generation and time calculation for synchronizing transmission and reception on the logic elements inside the MICOM.

If the X-TAL specification changes, MICOM may make an error.

(The standard components should be used.)

When power is supplied to MICOM, reset circuit initializes RAM and other parts on MICOM to initialize all programs. Reset voltage maintains “low” for hundreds of µsec comparing to MICOM Vcc voltage when power is input. It also maintains

“high”(5V) during normal operation. But, when Vcc drops to 3.4V-3.7V, reset port becomes “low”.

Port

Vcc

Reset

Voltage

5V

5V

6-4. Door S/W Detector

20

DOOR

F

R

Door Conditions

CLOSE

OPEN

CLOSE

OPEN

Door S/W Contact

OPEN

CLOSE

OPEN

CLOSE

MICOM

PIN NO

# 39

# 40

Micom Input Voltage

“HIGH”

“LOW”

“HIGH”

“LOW”

1) If door is open, door S/W contact is closed. Then MICOM receives “low” signal and detects door open then, Relay control circuit receives “HIGH” signal and turn Lamp on.

2) If door is closed, door S/W contact is open. Then MICOM receives “high” signal and detects door close then, Relay control circuit receives “LOW” signal and turn Lamp off.

6-5. Temperature Sensor

( Air Sensor)

When Sensor is open

MICOM input “HIGH”

When sensor is cut off

MICOM input “LOW”

1) The sensor uses the characteristics of thermistor. If temperature goes higher, resistance goes lower. On the contrary, if temperature goes lower, resistance goes higher.

2) MICOM input voltage is counted by sensor as follows.

R

TH

V

F

= X Vcc

R

TH

+ R

301

(V

CC

: 5V, R

TH

: Sensor reisitance)

3) For the resistance information on temperature and MICOM input voltage, please refer the conversion table. (Page. 41)

21

6-6. Button scan and display circuitry

At that time, the peak to peak voltage of square signal registers around 12V. The grid #1 ~#5 waveforms are as follows.

22

6-7. Load Operation

If MICOM outputs “high” signal to driver-IC(KID65003AP/S1P2655A Ø 3) according to each load operation conditions, IC turns on and DC 12V flows to ground through the relevant relay coil. Then, core is magnetized by the coil current, and relay contact switches on. When relay contact is on, AC

POWER is supplied to the relevant operation load, then which will be activated. If MICOM outputs

“low” signal, load operation stops with the relevant relay contact off.

COMP

RELAY

Defrost Heater on off on on off off on off

Load

Comp Operation

Comp off, Defrost-Heater Off

Defrost-Heater On

Comp Off, Defrost-Heater Off

Remark

Defrost-Heater Power Off

Comp Power Off

Like the above block diagram, operation of F, R defrost heater is detervminedy according to the operation of relay for COMP. When comp relay is connected to NO terminal, comp operates.

However, in case of F, R defrost heater, electricity dose not pass through the heater though relay works, But, if Comp relay is connected to NC terminal, comp does not operate and heater gets electrieity according to operation of F, R defrost relay.

23

6-8. Other option functions

Temperature and function values are changeable by using main PCB switching diode.

• Note : If possible, do not change because the values have been set in factory. When changing option functions, power should be turned off.

(Only initial power-on allows reading option function)

6-9. Option Table

NOTE

If possible, do not change because the values have been set in factory.

When changing option funcfions, power should be turned off.

1) Freezer Temperature Shift

SHIFT D601 D602

Reference

-0.5

-1.0

-2.0

-3.0

+1.0

+2.0

+3.0

•

•

•

•

-

-

-

-

•

•

-

•

•

-

-

•

-

•

-

•

-

•

-

(Unit ˚C) 2) Refrigerator Temperature Shift

D603 SHIFT D604 D605

Reference

-0.5

-1.0

-2.0

-3.0

+1.0

+2.0

+3.0

•

•

•

•

-

-

-

-

•

•

-

-

-

•

•

(Unit ˚C)

D606

•

-

•

-

•

-

•

-

24

7. Trouble shooting

Precautions

1. Is the power cord well connected to wall outlet?

2. Refer to the reference

1) No power

Start

DC-Trans primary power input?

Y

DC-Trans secondary power input?

Y

DC 12V output from REG102?

Y

DC 5V output from REG1?

Y

Are wires connected to panel securely?

Y

Panel PCB Ass’y is OK?

Y

Exchange main PCB

N

Check wires

N

Replace DC-Trans

N

N

Check REG102

(MC7812)

N

Check REG1

(KA7805)

Check wire connection

N

Replace panel PCB

Reference 1

(Page. 38)

25

2) Problem with self-test

2-1) Problem with outside temperature sensor

2-2) Problem with refrigerator temperature sensor

26

2-3) Problem in refrigerator defrost sensor

2-4) Problem in freezer temperature sensor

27

2-5) Problem in freezer defrost sensor

28

3) Compressor does not run

Reference

1. Compressor does not operate in 5 minutes after compressor OFF.

2. Compressor does not run during defrosting.

3. Compressor does not run because low temperature is detected if freezer and refrigerator sensor is not connected.

29

4) When cooling fan do not activate

Reference

Check cooling fan when defrost activation is selected.

1. When COMP is OFF both freezer and refrigerator cooling fan plus COMP cooling fan remain OFF.

2 . When COMP is ON, refrigerator fan is not always ON and when refrigerator temperature reached to a set-up temperature fan goes OFF.

3. When both freezer and refrigerator door close from open each fan takes delay time

(5sec~ 1 min) and running. (COMP ON as a condition)

4-1) When freezer fan (f-fan) do not activate

30

4-2) When refrigerator fan (R-fan) do not activate

31

4-3) When COMP cooling fan do not activate

32

5) No defrosting

Reference

1. Even though both F·R-defrost sensors short-circuit, normal operation continues without defrosting.(Refer to self-diagnosis function)

2. Even though the temperature fuse is off, there is no heating but defrosting natural temperature increase comp off-time takes longer.

3. Even though both F·R-defrost sensor are open, heating does not end and comp-off maintains with temperature fuse short-circuited.(Refer to self-diagnosis function)

33

34

6) When alarm run continuously

Reference

1. Alarm runs after 2 minute when door is open (melody) and runs in interval in every 2 minutes.

2. If door close is not done properly, MICOM will indicate that the door is open then alarm rings. If it recognize door open over 10 minutes it switch OFF inner lamp goes OFF. Lamp will not go ON in this situation even if door opens.

6-1) If melody alarm runs continuously

35

6-2) If Beep sounds continuously

6-3) When original panel PCB do not activate

36

6-4) When buttons of panel PCB is not selected

37

Reference

1. Is the power cord well connected to wall outlet?

2. Be careful of high-voltage discharge because high voltage DC power is supplied to SUB-PCB.

6-5) When the light dosen’t come on in the refrigerator

Start

Is door switch normal?

Exchange LAMP

Y

Is main pcb relay normal(RY75)?

Y

N

Replace door switch, check main wire

N

Check relay, exchange main pcb

Fluorescent LAMP(SUB PCB)

Is power suppling to

SUB PCB input?

Y

Is power suppling to

DC part C2 of rectifier?

N

Check connector and wire

N

Check SUB PCB power input

Y

Fluorescent LAMP normal?

Y

Exchange SUB PCB

N

Exchange LAMP

38

8. Reference

Reference1 The connection of DOOR-CABI

Reference2 Inspection of Relay

* First separate the housing connected to the main PCB CN70, 71 and measure the following items.

1. Measure the coil bisection of the relay and check whether it works.

2. Measure the apex bisection for open circuit.

Apex category The voltage of

Apex 3

Apex 2 coil bisection

DC 12V(Operation)

DC 0V(Standstill)

DC 12V(Operation)

DC 0V(Standstill)

Judging the apex bisection

C-NO:SHORT

C-NC:OPEN

C-NO:OPEN

C-NO:SHORT

SHORT

OPEN

Note) C → Common, NO → Normal open, NC → Normal close

3. When it operates as above, it is normal and when it does not operate, report the corresponding relay.

39

Reference3 Check for malfunctioning of the subordinate

* Cut off the power code, separate the housing from the main PCB CN70,71 and measure the following.

1. Measure resistance between the terminals and check for malfunctioning of L/W.

Subordinate

R Defrost heater

F Defrost heater

Comp

Comp-circulation fan

R-Circulation fan

F-Circulation fan

R-Lamp

F-Lamp

Measurement terminal

CN70 ⑤ - ①

CN70 ⑦ - ①

CN70 ⑨ - ①

CN71 ⑦ - ①

CN71 ⑤ - ①

CN70 ③ - ①

CN71 ⑨ - ①

CN71 ③ - ①

Evaluation of measurement result

Reference4 Inspection of the sensor

* Separate the housing connected to main PCB

CN30.

* Resistance value lowers while temperature rises, because it is a NTC type sensor.

1. R sensor measures resistance of CN30 between ②~⑤ .

2. Freezer sensor measures resistance of CN30 between ①~⑤ .

3. R-defrost sensor measures resistance of CN30 between ④~⑤.

4. F-defrost sensor measures resistance CN30 between ③~⑤ .

5. The measurement value above is calculated by comparing the present temperature of the sensor and the temperature table in specification found in the manual.

40

Reference5 Checking the Door S/W

(Refrigerator Bulb)

1. Open the door and check if the freezer bulb turns on.

2. Press the Door S/W and check if the freezer bulb turns off.

3. Close the door of freezer and repeat 1 and 2 for refrigerator.

4. If there is a problem, check bulb and door S/W.

5. Check wire connection.

(Micom signal)

1. Check if CN30 ⑥ and ⑧ is 5V DC after closing the F·R doors.

2. Check if CN30 ⑥ is 0V DC when opening F door.

2. Check if CN30 ⑧ is 0V DC when opening R door.

3. If there is problem, check door S/W and wire connection.

Reference6 Forced running & forced defrosting

(Forced running)

* This function is used to turn on the comp and fan immediately regardless of the temperature of freezer.

1. Press the button on the PCB after removing the main PCB cover from the upper part of refrigerator.

2. Buzzer will sound to indicate the forced running.

(Forced defrosting)

* This function is used to turn on the defrosting regardless of defrost time.

1. Press the button during forced running. Then,

R-defrosting is performed.

2. If the button is press during R-defrosting, Fdefrosting is also performed at the same time.

3. If the button is pressed during R-F defrosting, test mode is released.

41

Reference7

Sensor resistance and voltage conversion table for temperature

(Sensor pressure voltage 10K

Ω

– Voltage converted by the F-reference)

* Voltage conversion table depends on H/W structure of MICOM port input voltage.

Sensor Short : Micom 0V.

Sensor Open : Micom 5V.

※ Sensor partial pressure resistance 10K

Ω

TEMP.

Resistance K

Ω

±1% Voltage(V) TEMP.

Resistance K

Ω

±1% Voltage(V)

– 35

– 34

68.648

65.011

4.364

4.333

– 13

– 12

22.832

21.814

3.477

3.428

– 33 61.595

4.301

– 11 20.848

3.379

– 32

– 31

– 30

58.384

55.366

52.526

4.268

4.235

4.2

– 10

– 9

– 8

19.932

19.062

18.237

3.329

3.279

3.229

– 29 49.854

4.164

– 7 17.453

3.178

– 28 47.337

4.127

– 6 16.709

3.127

– 27

– 26

– 25

44.967

42.733

40.626

4.09

4.051

4.012

– 5

– 4

– 3

16.001

15.328

14.688

3.076

3.025

2.974

– 24 38.640

3.972

– 2 14.080

2.923

– 23 36.765

3.93

– 1 14.501

2.872

– 22

– 21

– 20

34.995

33.323

31.743

3.888

3.845

3.802

0

1

2

12.949

12.424

11.924

2.821

2.77

2.719

– 19 30.250

3.757

3 11.447

2.668

– 18

– 17

28.838

27.502

3.712

3.666

4

5

10.993

10.559

2.618

2.567

– 16

– 15

– 14

26.237

25.040

23.906

3.62

3.573

3.525

6

7

8

10.146

9.752

9.375

2.518

2.468

2.419

22

23

24

25

26

27

28

29

30

15

16

17

18

19

20

21

TEMP.

9

10

11

12

13

14

Resistance K

Ω

±1% Voltage(V)

9.016

8.673

2.37

2.322

8.345

8.032

7.732

7.446

2.274

2.227

2.18

2.134

7.172

6.910

6.659

6.420

6.190

5.970

5.759

2.088

2.043

1.998

1.954

1.911

1.869

1.786

5.557

5.363

5.178

5.000

4.829

4.665

4.508

4.357

4.212

1.786

1.745

1.705

1.666

1.628

1.59

1.553

1.517

1.481

42

9. Exploed View

9-1. Freezer room

43

22

23

24

25

18

19

20

21

14

15

16

17

NO

1

2

3

4

5

6

7

8

9

10

11

12

13

26

CODE-NO

DA97-00122C

DA97-00122D

DA61-70114B

DA61-70115C

DA63-40006A

DA63-00924A

DA63-00923A

DA47-40112N

DA31-10105A

4713-000213

4713-001035

DA63-00941A

DA97-00390A

DA97-00390B

DA97-00390C

DA63-00903A

DA61-00081A

DA31-00019A

DA31-00002P

DA31-00002W

DA31-00002X

DA31-00002V

DA97-00195B

DA97-00195C

DA97-00195D

DA97-00195E

DA67-40203N

DA67-40182A

DA63-00946A

DA63-00946B

DA63-00947A

DA63-00947B

DA63-00948A

DA63-00948B

DA66-10104A

DA71-20145A

DA63-00904A

DA63-00922A

DA97-00181A

DA97-00192C

DA97-00192D

DA97-00192E

DA97-00192F

DA47-00095E

DA32-00006C

DA97-00122A

DA97-00122B

PART NAME

TRAY-ICE,ASSY

TRAY ICE

TRAY-FRE UPP,ASSY

TRAY-FRE UPP,ASSY

TRAY-FRE MID,ASSY

TRAY-FRE MID,ASSY

TRAY-FRE LOW,ASSY

TRAY-FRE LOW,ASSY

ROLLER FRE

FIXER ROLLER

TRAY ICE CUBE

TRAY ICE CUBE

COVER EVAP FR(FRE),ASSY

EVAP-FRE ASSY

EVAP-FRE ASSY

EVAP-FRE ASSY

EVAP-FRE ASSY

ASS’Y-FUSE THERMO(77˚C)

SENSOR ASSY

ASSY SUPT-FREE

ASSY SUPT-FREE

ASSY SUPT-FREE

ASSY SUPT-FREE

SUPPORT-FREE,L

SUPPORT-FREE,R

GROMMET RAIL

COVER-LAMP,FRE

COVER-LAMP,FRE

LAMP HOLDER

SENSOR ASSY

LAMP-INCANDESCENT

LAMP-INCANDESCENT

COVER-EVAP RE(FRE),ASSY

COVER-EVAP RE(FRE),ASSY

COVER-EVAP RE(FRE),ASSY

COVER-EVAP RE(FRE),ASSY

COVER-EVAP REAR

CASE-MOTOR

FAN-PROPELLER

MOTOR-FAN

MOTOR-FAN

MOTOR-FAN

MOTOR-FAN

DRAIN PLATE FRE ASSY

DRAIN PLATE FRE ASSY

DRAIN PLATE FRE ASSY

DRAIN PLATE FRE ASSY

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

SR-L627

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

OPTION

SR-L629 SR-L677

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

SR-L679

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

SPEC

ASSY SUPT-FREE

ASSY SUPT FREE

230V,15W

110~130V/15W

240V

220V

115V

127V

240V

220V

127V

115V

EVAP FRE.250V

EVAP FRE

230V

230V

110~130V

110~130V

240V,50HZ

220V,50,60HZ

127V,60HZ

115V,60HZ

240V/52W

127V/52W

115V/52W

220V/52W

44

9-2. Refrigeration room

LAMP-FLUORESCENT

45

24

25

26

27

28

13

14

15

16

17

18

19

9

10

11

12

NO

1

2

5

6

3

4

7

8

20

21

22

23

CODE-NO

DA97-00104A

DA97-00184A

DA67-10225A

DA67-10229A

DA63-10359B

DA66-10104A

DA71-20145A

DA68-50153H

DA63-00936A

DA63-00936B

DA64-00449A

DA64-00448A

DA67-00505D

DA67-00505E

DA67-00550A

DA67-00550B

DA67-00550C

DA67-00550D

DA64-00450A

DA64-00451A

DA67-00505B

DA67-00505C

DA61-00368A

DA61-00367A

DA61-00370A

DA61-00369A

DA67-40194A

DA97-00296A

DA63-00945B

DA63-00925A

4713-001147

4713-001145

4713-000175

DA59-00243A

DA96-00017A

DA96-00017B

DA96-00017C

DA32-10105G

DA47-00095D

DA97-00495A

DA97-00495B

DA97-00495C

DA63-00933A

DA63-00932A

DA63-00183A

DA31-00016A

DA63-00934A

PART NAME

CASE-VEG,ASSY

CASE-VEG,ASSY

CASE-VEG

CASE-VEG

COVER-VEG

ROLLER FRE

FIXER ROLLER

INLAY-COVER VEG

COVER-VEG ASS’Y

COVER-VEG ASS’Y

TRIM-COVER,VEG

TRIM-COVER,VEG

SHELF GLASS

SHELF GLASS

SHELF REF-MID,ASSY

SHELF REF-MID,ASSY

SHELF REF-UPP,ASSY

SHELF REF-UPP,ASSY

TRIM-SHELF REF

TRIM-SHELF REF

SHELF GLASS

SHELF GLASS

RAIL-CHILLED,L

RAIL-CHILLED,L

RAIL-CHILLED,R

RAIL-CHILLED,R

TRAY-VEG

TRAY CHIL ROOM-ASSY

TRAY CHIL ROOM-ASSY

COVER-LAMP REF

LAMP-INCANDESCENT

LAMP-INCANDESCENT

LAMP-FLUORESCENT

EVAP-REF ASSY

EVAP-REF ASSY

EVAP-REF ASSY

EVAP-REF ASSY

SENSOR ASSY

ASSY-FUSE THERMO(R)(77˚C)

COVER-EVAP REF ASSY

COVER-EVAP REF ASSY

COVER-EVAP REF ASSY

COVER-EVAP FR REF

COVER-EVAP RE REF

COVER-MOTOR

FAN-CIRCUIT

COVER-SENSOR REF

●

●

●

●

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●

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●

●

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●

●

●

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●

●

●

●

●

SR-L627

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

OPTION

SR-L629 SR-L677

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

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●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

SR-L679

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

SPEC

COVER VEG

COVER VEG

SHELF(MID/UPP)

SHELF(MID/UPP)

SHELF(MID/UPP)

SHELF(MID/UPP)

SHELF-UPP

SHELF-UPP

SHELF-UPP

SHELF-UPP

230V, 25W

130V, 30W

ALL

240V, 120W

220V, 120W

127V, 120W

115V, 120W

EVAP-REF

EVAP-REF, 250V

230-240V, 50Hz

220V, 50~60Hz

115~127V, 60Hz

46

32

33

34

35

36

NO

29

30

31

CODE-NO

DA64-00452A

DA60-00033A

DA31-00003L

DA31-00003P

DA31-00003N

DA63-00771A

DA32-10109H

DA62-00106A

DA62-00109A

DA70-00402A

DA97-00441A

DA97-00441B

DA97-00441C

PART NAME

TRIM-COVER SENSOR

SPACER-DUCT

MOTOR-FAN

MOTOR-FAN

MOTOR-FAN

GROMMET-MOTOR

SENSOR ASSY

SEAL-COVER EVAP RE

SEAL AIR SIDE

PLATE-DRAIN REF ASSY

PLATE-DRAIN REF ASSY

PLATE-DRAIN REF ASSY

PLATE-DRAIN REF ASSY

SR-L627

●

●

●

●

●

●

●

●

●

●

●

●

●

OPTION

SR-L629 SR-L677

● ●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

SR-L679

●

●

●

●

●

●

●

●

●

●

●

●

●

SPEC

220V~240/50Hz

220V/50~60Hz

115V~127/60Hz

COVER EVAP

240V/38W

127V/38W

115V/38W

220V/38W

47

9-3. Door parts

SR-L677EV

SR-L627EV

48

4

5

2

3

19

20

21

22

13

14

15

16

17

18

9

10

11

12

6

7

8

NO

1

CODE-NO

DA91-01467A

DA91-01467B

DA91-01467C

DA91-01467D

DA91-01467E

DA91-01467F

DA91-01467G

DA91-01467H

DA91-01466A

DA91-01466B

DA91-01466C

DA91-01466D

DA91-01466E

DA91-01466F

DA91-01466G

DA91-01466H

DA64-00166A

DA71-40135A

DA71-40183C

DA91-01468A

DA91-01468B

DA91-01468C

DA91-01468D

DA91-01468E

DA91-01468F

DA91-01468G

DA91-01468H

DA63-01052A

DA63-00926B

DA63-00927A

DA63-00929A

DA63-00928A

DA63-00930A

DA63-00931A

DA66-00058A

DA61-00365A

DA61-00378A

DA61-00361A

DA63-50145A

DA67-00546A

DA67-00546B

DA67-00546C

DA67-00546D

DA61-10153E

DA61-10142C

DA63-50139C

DA63-00943A

DA97-00353A

DA97-00353B

DA97-00353C

PART NAME

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

ASSY FOAM-DOOR REF

MASCOT

STOPPER-MID

STOPPER DOOR-LOW

ASSY FOAM-DOOR FRE

ASSY FOAM-DOOR FRE

ASSY FOAM-DOOR FRE

ASSY FOAM-DOOR FRE

ASSY FOAM-DOOR FRE

ASSY FOAM-DOOR FRE

ASSY FOAM-DOOR FRE

ASSY FOAM-DOOR FRE

GASKET-DOOR SUB FRE

GUARD-REF UPP, L

GUARD-REF UPP, R

GUARD-REF MID, R

GUARD-REF MID

GUARD-REF LOW, R

GUARD-REF LOW

TRAY-EGG

GUIDE-BOTTLE

HINGE-UPP,ASSY

HINGE-UPP

SHIM-HINGE UPP

CAP-HINGE UPP

CAP-HINGE UPP

CAP-HINGE UPP

CAP-HINGE UPP

HINGE-MID,ASSY

HINGE-MID

SHIM-HINGE MID

COVER-CONTROL PANEL,ASSY

COVER-CONTROL PANEL,ASSY

COVER-CONTROL PANEL,ASSY

COVER-CONTROL PANEL,ASSY

●

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SR-L627

●

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●

OPTION

SR-L629 SR-L677

●

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●

SR-L679

●

●

●

●

●

●

●

●

SPEC

S/W(COOL TECH)

S/W(Cool n’cool)

M/G(COOL TECH)

M/G(Cool n’cool)

N/B(COOL TECH)

N/B(Cool n’cool)

N/S(COOL TECH)

N/S(Cool n’cool)

S/W(COOL TECH)

S/W(Cool n’cool)

M/G(COOL TECH)

M/G(Cool n’cool)

N/B(COOL TECH)

N/B(Cool n’cool)

N/S(COOL TECH)

N/S(Cool n’cool)

SAMSUNG

SNOW WHITH

SNOW WHTE

METAL GRAY

METAL GRAY

NOBLE BEIGE

NOBLE BEIGE

NOBLE STAIN

NOBLE STAIN

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

SNOW WHITH

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

SNOW WHITE

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

49

39

40

41

42

43

44

24

25

26

27

28

29

31

32

33

34

35

36

NO

23

30

37

38

CODE-NO

DA63-01046A

DA63-01046B

DA63-01046C

DA63-01046D

DA64-00444A

DA64-00444B

DA64-00445A

DA64-00445B

DA63-00915A

DA63-00916A

DA41-00102A

DA63-00942A

DA63-00352A

DA63-00352B

DA63-00352C

DA63-00909A

DA63-00909B

DA63-00909C

DA63-00909D

DA64-00444A

DA64-00444B

DA64-00445A

DA64-00445B

DA63-00915A

DA63-00916A

DA41-00102A

DA97-00193A

DA97-00193B

DA97-00193C

DA97-00193D

DA63-00906B

DA63-00906C

DA63-00906D

DA63-00906E

DA63-00905B

DA63-00905C

DA63-00905D

DA63-00905E

DA97-00216A

DA67-30216A

DA63-00902A

DA67-00545A

DA97-00217A

DA71-20155B

PART NAME

COVER-CONTROL PANEL

COVER-CONTROL PANEL

COVER-CONTROL PANEL

COVER-CONTROL PANEL

BUTTON-PCB, L, SILVER

BUTTON-PCB, L, GOLD

BUTTON-PCB, R, SILVER

BUTTON-PCB, R, GOLD

GASKET BUTTON PCB, L

GASKET BUTTON PCB, R

PANEL-PCB

COVER-CONTROL PANEL,ASSY

COVER-CONTROL PANEL,ASSY

COVER-CONTROL PANEL,ASSY

COVER-CONTROL PANEL,ASSY

COVER-CONTROL PANEL

COVER-CONTROL PANEL

COVER-CONTROL PANEL

COVER-CONTROL PANEL

BUTTON-PCB, L

BUTTON-PCB, L

BUTTON-PCB, R

BUTTON-PCB, R

GASKET BUTTON PCB, L

GASKET BUTTON PCB, R

PANEL-PCB

COVER-DISPENSER ASSY

COVER-DISPENSER ASSY

COVER-DISPENSER ASSY

COVER-DISPENSER ASSY

TRAY-DISPENSER A

TRAY-DISPENSER A

TRAY-DISPENSER A

TRAY-DISPENSER A

TRAY-DISPENSER B

TRAY-DISPENSER B

TRAY-DISPENSER B

TRAY-DISPENSER B

ASSY TANK-WATER

CAP-COVER WATER

COVER-WATER TANK

TANK-WATER

ASSY-COCK DISP

FIXER-CASE ASSY

●

●

●

●

●

●

●

●

●

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●

●

●

●

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●

●

SR-L627 SR-L679

●

●

●

●

●

●

●

●

●

●

●

SPEC

SNOW WHITH

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

SILVER

GOLD

SILVER

GOLD

SNOW WHITH

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

SNOW WHITH

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

SILVER

GOLD

SILVER

GOLD

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

SNOW WHITH

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

SNOW WHITH

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

SNOW WHITH

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

OPTION

SR-L629 SR-L677

●

●

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●

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●

●

●

●

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●

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●

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●

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●

●

●

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●

50

9-4. Cabinet parts & unit

51

13

14

15

16

17

18

19

PART NAME

REVET-CASTER

CASTER REAR

LEG-ASSY

HINGE-LOW

TRIM-PLATE,ABSORB

SHIM-HINGE,LOW

COVER-LEG

COVER-LEG

COVER-LEG

COVER-LEG

SWITCH DOOR

SWITCH DOOR

CASE-CONTROL BASE

TRANS POWER

TRANS POWER

TRANS POWER

C-OIL

C-OIL

C-OIL

C-OIL

COVER-PCB PANEL

COVER-PCB PANEL

COVER-PCB PANEL

COVER-PCB PANEL

PBA-MAIN

PBA-MAIN

PBA-SUB

GROMMET-DRAIN HOSE

GROMMET-DRAIN HOSE

TUBE-PVC

COVER-COMP ASSY

FAN-ASSY

MOTOR-CIRCUIT

MOTOR-CIRCUIT

MOTOR-CIRCUIT

MOTOR-CIRCUIT

PIPE-CONNECT

GROMMET-SUCT PIPE

TRAY-DRAIN WATER ASSY

TRAY-DRAIN WATER ASSY

TRAY-DRAIN WATER ASSY

TRAY-DRAIN WATER ASSY

TRAY-DRAIN WATER ASSY

PIPE-SUB COND ASSY

CLAMP-COMP

COMPRESSOR

COMPRESSOR

COMPRESSOR

COMPRESSOR

COMPRESSOR

DRYER-ASSY

PROTECTOR O/L

PROTECTOR O/L

PROTECTOR O/L

PROTECTOR O/L

PROTECTOR O/L

RELAY-PTC

RELAY-PTC

RELAY-PTC

COVER-RELAY

CHASSIS-COMP ASSY

CASTER-REAR

RIVET-CASTER

GROMMET COMP

SEAL-SUB COND

52

SR-L679

●

●

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●

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●

●

●

●

●

●

●

●

SPEC

SNOW WHITH

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

R600a

R134a

230V~240V/50Hz

220V/50~60Hz

127V/60Hz

115V/60Hz

230V~240V(R600a)

230V~240V(R134a)

220V(R134a)

127V(R134a)

115V(R134a)

R600a

R134a

R134a

R134a

R134a

4TM232PHBYY-53

4TM265RFBYY-53

4TM314PHBYY-53

4TM435PHBYY-53

4TM437RHBYY-53

J531Q35E330M385-2

J531Q34E220M350-2

J531Q33E100M200-2

R134a

220~240V

127V

115V

350V, 3.5uF

350V, 5uF

350V, 8uF

250V, 12uF

SNOW WHITH

METAL GRAY

NOBLE BEIGE

NOBLE STAIN

220V~ 240V

115~127V

INVERTER-PCB

Ø 10

OPTION

SR-L629 SR-L677

●

●

●

●

●

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●

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●

●

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●

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●

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●

●

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●

●

●

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●

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●

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●

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●

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●

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●

●

●

●

●

●

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●

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●

●

●

●

●

●

●

●

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●

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●

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●

●

●

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●

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●

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●

●

●

●

●

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●

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●

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●

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●

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●

●

SR-L627

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

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●

●

●

●

●

●

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●

●

●

●

●

●

●

●

10. Disassembly & Assembly

10-1. Replacement of refrigerator lamp

Warning

Always take out the power plug when replacing the refrigerator lamp. There is the danger of electric shock.

1. Remove the cover with the back latch pressed.

2. Pull out the lamp.

3. After replacing the lamp, assemble the front latch of cover and then connect the back latch.

4. Plug in and check if power is cut off or not by pressing the R-door switch.

10-2. Replacement of refrigerator fluorescent lamp

Warning

Always take out the power plug when replacing the refrigerator lamp. There is the danger of electric shock.

1. Remove a screw from the cover and pull down the cover with the back latch pressed.

2. Pull out the lamp.

3. After replacing the lamp, assemble the front latch of cover and then connect the back latch and screw on the cover.

53

10-3. Replacement of freezer lamp

Warning

Always take out the power plug when replacing the refrigerator lamp. There is the danger of electric shock.

1. Remove the cover by pressing the bottom latch.

2. Replace the lamp by turning it counter-clock wise.

3. Reassemble the cover in the reverse order of disassembly and plug in and the check if power is cut off by pressing the door switch.

54

10-4. Disassembly of the cooling cycle in the refrigeration room

1. Take out food stuffs and trays from refrigeration room.

2. Remove 4 cap screws with (–) driver or similar tools.

3. Remove 6 screws from the cover-evap. ref.

assy

4. Remove 2 latches from the bottom of the cover in the front of evaporator.

5. Remove the evaporator cover by pulling out the bottom of the evaporator cover.

55

6. Remove the housing of wires.

56

■ Cooling cycle unit assembly in the refrigeration compartment

■ Dust assembly in the refrigeration compartment

57

10-5. Disassembly of the cooling cycle unit in the freezer

1. Take out the case from the freezer.

2. Remove 2 screws from the assy-supt free.

3. Pull out the holder of the assy-supt free and disconnect wire terminals.

2 screws

②

①

4. Remove the latch of the cover-evap fr. from the buttom.

③

①

②

5. Remove each terminal from the top of the left wire assembly.

58

6. Remove 2 screws from the back cover of the cooling cycle unit and remove the latch with (–) driver.

■ Assembly of the cooling cycle unit in the freezer

Maintains 9˚

(Coolant & noise reduction)

59

10-6. Assembly of mechanic compartment in the refrigerator

1. Remove the screws securing the mechanic compartment cover of the back bottom of the refrigerator.

2. Mechanic compartment assembly

60

10-7. Electric box assembly

Warning

Make sure the power plug is taken out when replacing the components for the main

PCB.

1. Disconnect the power cord.

2. Remove the cover of electrical box with (–) driver.

3. Assembly specification of electric box

TEST S/W

Condenser

D/C Trans

61

PBA-SUB(INVERTER-PCB)

10-8. Temperature controller disassembly

1. With dispenser model.

1-1) Press the fixing lever, lift the exclusive water tank upwards, then remove it.

1-2) Pull out the assembly press lever.

1-3) Push the latch of control panel assembly with (-) driver and pull out the control panel

2. Without dispenser model

2-1) Remove 3 screws from the assembly control panel and pull out the assembly control panel.

62

11. PCB Circuit Diagram

63

12. Specifications of main components

12-1 Regulator

3-TERMINAL 1A POSITIVE VOLTAGE REGULATORS

The MC78XX/MC78XXA series of three-terminal positive regulators are available in the

TO-220 package and with several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local onward regulation, eliminating the distribution problems associated with single point regulation. 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 derive over aA output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. MC78XXI is characterized for operation from -40° ℃ to ＋ 125 ℃ , and MC78XXC from 0 ℃ to ＋ 125 ℃ .

TO-220 1 2 3 1 : Input 2 : GND 3 : Output

FEATURES

Output Current up to 1.5A

Output voltages of 5;6;8;9;10;11;12;15;18;24V

Thermal Overload Protection

Short Circuit Protection

Output Transistor SOA Protection

No external components required

Output current in excess of 1A

Industrial and commercial temperature range

BLOCK DIAGRAM

ORDERING INFORMATION

Package

TO-220

TO-220

TO-220

Operating Temperature

0~ ＋ 125 ℃

－ 40~ ＋ 125 ℃

ABSOLUTE MAXIMUM RATINGS

Characteristic

Input Voltage (for V o

= 5V to 18V)

(for V o

= 24V)

Thermal Resistance Junction - Cases

Thermal Resistance Junction - Air

Operating Temperature Range MC78XXC/AC

MC78XXI

Storage Temperature Range

64

Symbol

V

IN

V

IN

T opr

Tstg

Rating

35

40

5

65

0 ~ ＋ 125

－ 40 ~ ＋ 125

－ 65 ~ ＋ 150

Unit

V

V

℃ /W

℃

℃

℃

REGULATOR(MC7812C)

ELECTRICAL CHARACTERISTICS MC7812

(Refer to test circuit, T min

< T i

< T max,

V i

= 500mA, V i

= 19V, C i

= 0.33

㎌ , C o

= 1.0

㎌ unless otherwise specified)

Characteristic

Output Voltage

Line Regulation

Load Regulation

Quiescent Current

Quiescent Current Change

Output Voltage Drift

Output Noise Boltage

Ripple

Rejection

Dropout Voltage

Output Resistance

Short Circuit Current

Peak Current

Symbol

△ V

V

△

△

I

△ o

V d

/ o

V

V

I n

RR

V

D

R

O

I

SC

I peak d o o

△ T

V

I

Test Conditions

Ti = 25 ℃

Ti = 25 ℃

5.0mA

≤ I o

≤ 1.0A, P o

≤ 15W

V in

= 14.5V to 27V

V i

= 15.5V to 27V

V i

= 14.5V to 30V

V i

= 16V to 22V

I o

= 5.0mA to 1.5V

Ti = 25 ℃

I o

= 250mA to 750mA

T i

= 25 ℃

Io = 5mA to 1.0A

V i

= 14.5V to 30V

V i

= 15V to 30V

I o

= 5mA f = 10Hz to 100KHz T i o

V i fF = 120Hz

= 15 to 25V

= 1A, T i

= 25 f = 1KHz

= 35V, T

T i

= 25 i

℃ i

℃

= 25

= 25

℃

℃

Min

11.5

MC7805C

Typ

12

Max

12.5

11.4

55

12

10

3.0

12

4.0

5.1

-1

75

71

2

18

250

2.2

12.6

240

120

240

120

8

0.5

1.0

Unit

V mV mV mA mA mV/

㎶

℃ dB

V m Ω mA

A

* T min

< T i

< T max

MC78XXI : T min

= -40 ℃ , T max

= 125 ℃

MC78XXC, T min

= 0 ℃ , T max

= 125 ℃

* Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulse testing with low duty is used.

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© Samsung Electronics Co., Ltd.

November 2001

Printed in Korea

Code-No : DA68-01130A REV(0.0)