Panasonic NR-BY552XS User manual

Order No. PHAT110901CE

(Revision : Feb. 2012)

Service Manual

Refrigerator

NR-BY552XS

NR-BY552XW

NR-BY602XS

Product Colour

Stainless Touch (XS)

Korean White (XW)

Destination

Thailand, Malaysia, Singapore

Indonesia, Vietnam, India

Philippines, GULF, PGF

Australia/New Zealand

is a violation of law.

There are special components used in this equipment which are important for safety. These parts are marked by

in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that

these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do

not modify the original design without permission of manufacturer.

IMPORTANT SAFETY NOTICE

WARNING

The service information is designed for experienced repair technicians only and is not designed for use by the general

public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting

to service a product. Products powered by electricity should be serviced or repaired only by experienced professional

technicians. Any attempt to service or repair the product or products dealt within this service information by anyone

else could result in serious injury or death.

CFCs have been used in refrigerant as refrigerator and the insulation materials for many years. But it

is now known that these compounds which once seemed so ideal for use as cleaning agents and in

refrigeration systems, destroy the earth’s ozone layer as a result, an international body decided on a

total worldwide ban of harmful CFCs by the end of 1995.

NR-BY552XS, XW NR-BY602XS

- 2 -

CONTENT

Page

16 - 17

23 - 24

24 - 25

29 - 31

1. Safety Cautions for Repairing

1.1 Warning

1.2 Caution

2. Specification and Components

2.1 NR-BY552XS, XW

2.2 NR-BY602XS

3. Performance Data

3.1 NR-BY552X (AT 32 ± 1°C)

3.2 NR-BY602X (AT 32 ± 1°C)

4. Display Specification

5. Self Protecting Function

5.1 Protecting for IC

5.2 Protection for compressor locked

5.3 Protection for power supply droping

6. Self Diagnoising Function

7. Temperature Control

8. Inverter Control Display

9. Refrigerator Instruction Guideline

10. Troubleshooting Guide

10.1 Not cool at all [ Both PC & FC (compressor does not operate) ]

10.2 Cool, not enough [ Both PC & FC (compressor operates) ]

10.3 Eco-Navi operation doesn’t work (PC/FC/IC cooling condition is normal)

11. Schematic Diagram

11.1 Wiring Diagram : NR-BY552XS, XW

11.2 Wiring Diagram : NR-BY602XS

12. Disassembly Instruction

12.1 LCD Cover

12.2 Cover Control

12.3 PCB Control

12.4 Feature of Crisper

12.5 Maintain method : Take off Crisper handle

12.6 Maintain method : Crisper handle ass’y

13. Parts Exploded View and Replacement Parts List

13.1 Part Exploded View : Body

13.2 Part Exploded View : Door

13.3 Part Exploded View : Packing

13.4 Replacement Parts List : NR-BY552XS, XW / NR-BY602XS

NR-BY552 / NR-BY602

- 3 -

1. SAFETY CAUTIONS FOR REPAIRING

When you repair the refrigerator, please kindly take care for the following cautions.

1.1 Warning

Before repairing unit, unplug supply cord

• Before you repair the refrigerator, please unplug the supply cord.

Use authentic parts when repairing

• When you replace the parts, please use authentic parts to replace defective parts.

Caution during brazing

• When you use touch for brazing, please ensure ventilation.

Otherwise, you will be poisoned by carbon monoxide.

Pay attention to using refrigerant

• If refrigerant touches fire, the gas becomes poisonous gas.

Pay attention to getting electricity shock

• When you check the voltage of terminal, please do not touch the electricity part terminal.

• When you replace the parts, please wait for 3 minutes at least for discharging capacitor.

Check safety after repairing

• Check the screws, parts, lead wires to take in place.

• Check the repairing portion whether circumferential parts are damaged or not.

• Check insulation resistance between supply plug and earth.

• When install refrigerator, check condition of supply cord and plug.

• Wipe off the dust on plug.

• Cutting and seal the electric device carefully.

1.2 Caution

Watch the hot parts

• During operation and after operation, compressor and pipes are hot.

• Also, under these condition, heater are hot.

• Do not burn your fingers when you touch it.

Pay attention to refrigerant

• Do not touch liquid refrigerant. Otherwise your hands may be burnt.

Pay attention to edge of parts

• Otherwise, your fingers may be cut.

Pay attention to fins of evaporator and condenser

• Otherwise, your fingers may be cut.

Before transportatin, adjust the bolt

• Otherwise, the floor may be damaged.

Do not touch the pipe after brazing

• Otherwise, your hands may be burnt.

NR-BY552 / NR-BY602

- 4 -

2. SPECIFICATION AND COMPONENTS

2.1 NR-BY552XS, NR-BY552XW

MODEL

Destination

Code Attached Model

Material Spec.

System Spec.

Power Source

Plug

Malaysia

Singapore

Indonesia

Vietnam

NR-BY552XS

India

Inverter

1N AU/NZ

K3P

240V/50Hz

Australia/New Zealand Australia/New ZealandPhilippines

NR-BY552XW

Stainless White

K3P

240V/50Hz

AU/NZ

240V/50Hz 230V/50Hz 220V/50Hz220~240V/50Hz 230V/50Hz 230V/60Hz

S3P

Thailand

220V/50Hz

C3P S3P C2P C2P B3P A2P

NR-BY552 / NR-BY602

Specification

Capacity

(Total Gross Volume)

(Total Storage Volume)

Temperature Control

Defrosting

Inner Liner

Insulation

Net Weight

External Dimension

Capacity

Height (mm)

Depth (mm)

Width (mm)

461L

775

745

1714

FC : Electronic control (PCB)

PC : Baffle damper thermostat

Full-automatic heater defrost with Micro Controller

Vacuum Formed ABS resin

80 Kg

Polyurethane foam (cabinet and door)

(FC : 99L, PC : 362L)

551L

(FC : 153L, PC : 398L)

Sealed Unit

Evaporator

Condenser

Refrigerant

Lubricating Oil

Dryer

Compressor

REF. Capa.

Power Input

Type

Charging Amt.

Type

Charging Amt.

Type

Charging Amt.

Cylinder Capa.

Model Name EFI100E13DGH-COECS

27 / 52r / s, 75 / 193W

40.5 / 112W

Molecular Sieves (XH-9)

5g.

R600a

Freol S -10

215

5ml

105

°C

B = 3819K

R10 = 3.899K

2.0 A

75% (AT 70

°C)

Closed Temp. (normal) -6.0

1.5

°C

10.17 cm / rev

Fin Tube Type

Wrapper Type (concealed condenser)

Electric Part

Door Switch

Defrosting Control /

Electronic PCB

Heating Device

for Defrosting

Overload Protector

Automatic Temp.

Control Device (PC)

(Baffle Damper)

Defrost Sensor (DFC)

Control

Fan Motor

Type

Rating

Type

Rating

Type

Rating

Type

Rating

Type

Rating

FC Sensor (FCC) Type

Rating

Ambient Temp.

Sensor (ATC)

Type

Rating

Defrost Thermal Fuse Type

Rating

Device (PC)

Device (Crisper)

Light Irradiation Type

Rating

Light Irradiation Type

Rating

Kind

Opening Temp.

Impression I.

Closing Temp.

Type

Defrost Cycle

FBA11J14VXA

110mm. prop fan (Box Type)

PAS - BY602X (Control)

(1) Ambient Temp. over

34°C 8h

(2) Ambient Temp. 2

3°C

33°C 8h

(3) Ambient Temp. under

22°C 13h

(4) Power on 4h (Rated time)

MM6-8V41

MM1-6187

NTC

B = 3850K

R-20 = 18.9K

1.8%

NTC

B = 3435

R25 = 10.0K

NTC

Micro Temp.

250V / 10A / 73

°C

LED Lamp PCB

12V / 100mA

LED Lamp PCB

5V / 30mA

Gas Charge Type

230V / 216W

MM3-20DCW

DC 14V / 1.54W

D3D-121 (S.P. - S.T.)

250V / 0.5A

- 5 -

2.2 NR-BY602XS

NR-BY552 / NR-BY602

MODEL

Destination

Code Attached Model

Material Spec.

System Spec.

Power Source

Plug

Thailand

Singapore

Indonesia

Vietnam

NR-BY602XS

India

Inverter

Stainless

Philippines

GULF

PGF

220V/50Hz 230V/50Hz 220V/50Hz

220~240V/50Hz 230V/50Hz 230V/60Hz 220V/50Hz 220V/50Hz

C3P

Malaysia

240V/50Hz

S3P S3P C2P C2P B3P A2P S3P C2P (Shuko)

Specification

Capacity

(Total Gross Volume)

(Total Storage Volume)

Temperature Control

Defrosting

Inner Liner

Insulation

Net Weight

External Dimension

Capacity

Height (mm)

Depth (mm)

Width (mm)

511L

775

745

1846

FC : Electronic control (PCB)

PC : Baffle damper thermostat

Full-automatic heater defrost with Micro Controller

Vacuum Formed ABS resin

86 Kg

Polyurethane foam (cabinet and door)

(FC : 99L, PC : 412L)

602L

(FC : 153L, PC : 449L)

Sealed Unit

Evaporator

Condenser

Refrigerant

Lubricating Oil

Dryer

Compressor

REF. Capa.

Power Input

Type

Charging Amt.

Type

Charging Amt.

Type

Charging Amt.

Cylinder Capa.

Model Name EFI100E13DGH-COECS

27 / 52r / s, 75 / 193W

40.5 / 112W

Molecular Sieves (XH-9)

5g.

R600a

Freol S -10

215

5ml

105

°C

B = 3819K

R10 = 3.899K

2.0 A

75% (AT 70

°C)

Closed Temp. (normal) -6.0

1.5

°C

10.17 cm / rev

Fin Tube Type

Wrapper Type (concealed condenser)

Electric Part

Door Switch

Defrosting Control /

Electronic PCB

Heating Device

for Defrosting

Overload Protector

Automatic Temp.

Control Device (PC)

(Baffle Damper)

Defrost Sensor (DFC)

Control

Fan Motor

Type

Rating

Type

Rating

Type

Rating

Type

Rating

Type

Rating

FC Sensor (FCC) Type

Rating

Ambient Temp.

Sensor (ATC)

Type

Rating

Defrost Thermal Fuse Type

Rating

Device (PC)

Device (Crisper)

Light Irradiation Type

Rating

Light Irradiation Type

Rating

Kind

Opening Temp.

Impression I.

Closing Temp.

Type

Defrost Cycle

FBA11J14VXA

110mm. prop fan (Box Type)

PAS - BY602X (Control)

(1) Ambient Temp. over

34°C 8h

(2) Ambient Temp. 2

3°C

33°C 8h

(3) Ambient Temp. under

22°C 13h

(4) Power on 4h (Rated time)

MM6-8V41

MM1-6187

NTC

B = 3850K

R-20 = 18.9K

1.8%

NTC

B = 3435

R25 = 10.0K

NTC

Micro Temp.

250V / 10A / 73

°C

LED Lamp PCB

12V / 100mA

LED Lamp PCB

5V / 30mA

Gas Charge Type

230V / 214W

MM3-20DCW

DC 14V / 1.54W

D3D-121 (S.P. - S.T.)

250V / 0.5A

- 6 -

3. PERFORMANCE DATA

NR-BY552 / NR-BY602

3.1 NR-BY552 (AT 32 ± 1°C)

Thermostat Dial Setting

Mean Fresh Food Compartment Temp. t3 (°C)

(°C)

(%)

Mean Freezer Load Temp.

Vegetable Crisper Temp.

PC Door Shelf Upper Temp.

Egg Tray Temp.

PC Door Shelf Bottom Temp.

Chilled Case Temp.

Running Ratio

“ 3 ” “ 2 ” “ 1 ”

1.5 ± 2.5 4.0 ± 2.5 7.0 ± 2.5

-22.0 ± 2.5 -20.0 ± 2.5 -15.0 ± 2.5

- 4.0 ± 2.5 -

- 7.0 ± 2.5 -

- 4.0 ± 2.5 -

- 5.0 ± 2.5 -

- 0.0 ± 2.5 -

85 ± 15 80 ± 15 65 ± 15

3.2 NR-BY602 (AT 32 ± 1°C)

Thermostat Dial Setting

Mean Fresh Food Compartment Temp. t3 (°C)

(°C)

(%)

Mean Freezer Load Temp.

Vegetable Crisper Temp.

PC Door Shelf Upper Temp.

Egg Tray Temp.

PC Door Shelf Bottom Temp.

Chilled Case Temp.

Running Ratio

“ 3 ” “ 2 ” “ 1 ”

1.5 ± 2.5 4.0 ± 2.5 7.0 ± 2.5

-22.0 ± 2.5 -19.5 ± 2.5 -15.0 ± 2.5

- 5.0 ± 2.5 -

- 8.0 ± 2.5 -

- 5.0 ± 2.5 -

- 5.5 ± 2.5 -

- 1.5 ± 2.5 -

85 ± 15 80 ± 15 65 ± 15

- 7 -

4. DISPLAY SPECIFICATION

NR-BY602

DISPLAY

QUICK FREEZING

BUTTON

FREEZING CONTROL

BUTTON

IN-PROCESS INSPECTION

MANUAL DEFROST Hold down QUICK FREEZING BUTTON for over a sec.

Operate the following controls within 3 sec., within 30 sec., after power-on

while PC and FC door are open.

QUICK FREEZING BUTTON FREEZER CONTROL BUTTON

QUICK FREEZING BUTTON

START

CONDITION

AUTOGNOSIS

Indicate AUTOGNOSIS in which case abnormal condition.

During in-process inspection.

NOISE MODE For 45 sec., of the start of IN-PROCESS INSPECTION

JUDGEMENT

①Hold down QUICK FREEZING BUTTON for over a second.

(Manual defrost)

②After 4 hours (Defrost start)

END

CONDITION

COMP

FC FAN

HEATER

LED

: R 6 (71rps)

: VF4 (Ultrahigh Speed)

: DEFROST HEATER OFF

: ECONAVI LED and FREEZER LED [ NORMAL ]

BRINKING (ON_1sec/OFF_1sec)

COMP : R 7 (80rps)

CONTENTS

FOR CONTROL

PROCESS INSPECTION

NR-BY552 / NR-BY602

CONTENTS

INSPECTION OF TEMP. For 30 min., of the start of IN-PROCESS INSPECTION

Normal or abnormality is displayed according to the range of drop of FCC

ALL FREEZER LED LIGHTING..........GOOD

ALL FREEZER LED BRINKING..........BAD

JUDGEMENT

INSPECTION OF

ILLUMINANCE SENSOR

Contents of discussion

Illuminance sensor will be added. Therefore, an inspection of whether to be able to operate normally is necessary.

< In-process inspection of illuminance sensor >

①ECONAVI LED blinks at the start of in-process inspection check whether ECONAVI LED blinks.

④As long as the illuminance sensor is normal, ECONAVI LED goes out check whether ECONAVI LED goes out.

③Lighting of illuminance sensor shall be varied manually or automatically after the completion of aging. (If there is

input variation corresponding to a dark area and a bright area, microcomputer judges that as normal)

In Japan, a dark area and a bright area have been created in the place for inspection process.

②ECONAVI LED lights up after 1 min., of the start of in-process inspection (because if there is less input variation,

microcomputer judge that as abnormal) check whether ECONAVI LED lights up.

During IN-PROCESS INSPECTION

After 1 min., of the start of IN-PROCESS INSPECTION.

Abnormality is judged according to variation width of input voltage of

illuminance sensor.

ECONAVI LED EXTINCTION..........GOOD

ECONAVI LED LIGHTING...............BAD

JUDGEMENT

１

１１

１

１１

１

FREEZER

LED (3 pcs)

QUICK FREEZING

LED

ECONAVI

LED

- 8 -

5. SELF PROTECTING FUNCTION

5.1 Protection for IC

NR-BY552 / NR-BY602

IC order to stop compressor completely.

YES

After 1 hour.

SYSTEM PROTECT CONTROL CYCLE

1st time

OPERATE each 7min X 10 times

COMPRESSOR 1hour STOP

OPERATE each 7min X 10 times

SYSTEM PROTECT CONTROL CYCLE

333rd time

STOP COMPRESSOR

YES

IC cancels to stop compressor.

Normal operating?

After restarting, does “Stop compressor”

occure 10 times within 2 min?

IC cancels to stop compressor.

Normal operating?

After 10 min., does PCB check if IPM protect

signal is normal?

Does system protection cycle for 333 times?

IC orders to stop compressor for 10 min.

Does IC receive IPM protect signal?

• IC continues to stop compressor until 1 hour.

• IC indicates Self Diagnosing sign.

• IC continues to stop compressor until 1 hour.

• IC indicates Self Diagnosing sign.

• Normal operating.

- 9 -

NR-BY552 / NR-BY602

5.2 Protection for compressor locked

IC order to stop compressor completely.

YES

After 1 hour.

SYSTEM PROTECT CONTROL CYCLE

1st time

OPERATE each 7min X 10 times

COMPRESSOR 1hour STOP

OPERATE each 7min X 10 times

SYSTEM PROTECT CONTROL CYCLE

333rd time

STOP COMPRESSOR

YES

IC cancels to stop compressor.

Normal operating?

After restarting, does “Stop compressor”

occure 10 times within 2 min.?

IC cancels to stop compressor after 10 min.

Does system protection cycle for 333 times?

IC orders to stop compressor for 10 min.

• After starting 2 sec., does IC detect

rpm < 5r/sec.?

• After starting from 2-10 sec., does PCB

detect rpm over 120r/sec.?

• IC continues to stop compressor until 1 hour.

• IC indicates Self Diagnosing sign.

• Normal operating.

- 10 -

5.3 Protection for power supply droping

NR-BY552 / NR-BY602

YES

After 1 hour.

YES

IC cancels to stop compressor.

Normal operating?

After restarting, does “Stop compressor”

occure 10 times within 2 min?

IC cancels to stop compressor.

Normal operating?

After 10 min., does PCB check power supply

voltage if it is > 180V AC?

IC orders to stop compressor for 10 min.

Does power supply voltage drop as condition

> 0.1 sec. and < 160V AC?

• IC continues to stop compressor until 1 hour.

• IC indicates Self Diagnosing sign.

• IC continues to stop compressor until 1 hour.

• IC indicates Self Diagnosing sign.

• Normal operating.

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