Samsung SG626, SG628, BG626, BG678, SG676 Alignment and Adjustments

QUICK HIGH …. FREEZER …. LOW

LOW ….REFRIGERATOR …. HIGH QUICK

ALM

QUICK FREEZER ALARM REFRIGERATOR QUICK

QUICK HIGH …. FREEZER …. LOW

ALM

QUICK FREEZER TEMP.CONTROL REFRIGERATOR QUICK

X-FLOW

SR-L628/678EV

X-FLOW

SR-L626/676EV

HIGH
HUMI

LOW ….REFRIGERATOR …. HIGH QUICK

HIGH
HUMI

1. Temperature Control Functions

A. Temperature control in the freezing compartment

1) Select the 5 STEPS of ‘MED’–‘MED · HIGH’–‘ HIGH’–‘LOW’–‘LOW · MED’ with one button.

2) When-ever the temperature control button of freezer is pressed, it continues to light from “MED”
to “LOW · MED”.

3) When power turns on “MED” is automatically selected.

Category

Indicator Lamp

Reference Temp.

Initial power on

Pressed once

MED

–17.5˚C –19.5˚C

MED·HIGH

Pressed twice

HIGH

–21˚C

Pressed 3 times

LOW

–15˚C

Pressed 4 times

LOW·MED

–16.5˚C

Remark

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B. Temperature control in the refrigeration compartment

1) Select the 5 stages of ‘MED’–‘MED · HIGH’–‘HIGH’–‘LOW’–‘LOW · MED’ with a button.

2) Whenever the temperature control button of refrigerator is pressed, it continues of light from
‘MED’ to ‘LOW · MED’.

3) When power turns on “MED” is automatically selected.

Category

Indicator Lamp

Reference Temp.

Initial power on

MED

3˚C 1˚C

Pressed once

MED·HIGH

Pressed twice

HIGH

–1˚C

Pressed 3 times

LOW

6˚C

Pressed 4 times

LOW·MED

4.5˚C

C. Power freezing and power refrigeration function

• It is selected by the special power freezing · refrigeration button.

• Whenever the power freezing · refrigeration button is pressed, it repeats turning on and off.

• When power turns on at first, it is selected to off automatically.

• When the power freezing · refrigeration button is selected, the temperatures of freezer and

refrigerator do not change. But, the temperatures can be set again after it is selected.

1) Power Freezing Function

①

If power freezing is selected, COMP and F-FAN operate for 2 and 30 hours.(In 1 minute after
selection)

②

If power freezing function finishes, power freezing lamp turns off.

③

If power freezing function is selected, refrigerator is controlled by the fixed notch.

Remark

2) Power Refrigeration Function

①

If it is selected, it continues until COMP and R-FANreaches to –4˚C.

②

The power refrigeration finishes if COMP and R-FAN does not reach –4˚C even though 2 and
30 hour operation.

③

If it is selected, refrigerator is controlled by the fixed notch.

3) When the power freezing · refrigeration are selected simultaneously

①

Each function is carried out at the same time.

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2. Alarm function

A. Button touch(Ding-Dong Sound)

1) When each button on the control panel is pressed, the beep sounds to confirul the key input.

2) The beep does not sound if wrong-touch.

B. Door open(Ding-Dong Sound)

1) When the door of either freezer of refrigerator is open for more than 2 minutes, the alarm rings.

2) The alarm rings for 10 seconds every one minute. When the door closes, the alarm goes off
immediately.

3) Door open alarm rings when the display button is selected. But door open alarm stops
immediately if the button is released.

4) If the alarm is selected by the button, the alarm rings regularly.

5) Alarm by the alarm button includes only door open.

6) Model SR-L676EV, SR-L626EV follows the above alarm procedure without alarm select button.

C. Forced starting · Forced defrosting (beep sound)

1) If the forced starting · forced defrosting are selected the beep tone sounds.

2) When forced starting, the beep sounds until being completed(24 hours) or released.

3) When forced defrosting, the beep sounds until being completed(including pause) or released.

3. Defrosting function

A. Quick defrosting function

1) When power turns on at first, the first defrosting is carried out after compressor operates for 4
hours.

B. Standard defrosting function

1) Defrosting is divided into freezer defrosting, refrigerator defrosting and natural defrosting. The
defrosting of freezer and refrigerator is determined by the operation time of compressor.

2) Defrosting interval can vary from 6~32 hours.

C. Natural defrosting of Refrigerator

1) Natural defrosting is carried out if the compressor turns off and fan keeps on for some period.

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4. Test function

A. Forced starting function

1) The test functions are designed for PCB, product test, process inspection and service activities.

2) The test switch is on the main PCB and when pressed once, it immediately works cooling without
comp delay.

3) If the forced starting is selected, freezer and refrigerator notches are selected to “HIGH” and
“HIGH”· MED”. Comp and F-Fan are controlled by pull-down and R-Fan is controlled by “HIGH

· MED” notch.

4) The pull-down function of forced starting maintains for 24 hours and it returns to normal
operation after defrosting(F, R) is automatically carried out.

5) During forced starting, all button inputs are available. Forced starting can be released when
power turns on after off or by the test release mode.

6) During forced starting, the beep continues to sound (0.25 sec. ON/0.75 sec OFF) until defrosting
is completed.

B. Forced defrosting function

1) If the test button is pressed once during the forced starting, refrigerator is defrosted forcedly.

2) If it is pressed twice, freezer and refrigerator carry out defrosting at the same time.

3) When the forced defrosting is carried out, the forced starting is released and returns to normal
operation.

4) When the forced defrosting is carried out, the notches of freezer and refrigerator maintains the
notch fixed prior to forced starting.

C. Test mode release

1) If the test button is pressed twice during forced defrosting, the forced defrosting is canceled and
returns to normal operation.

2) If the test release mode is selected, the buzzer will stop.

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5. Self-diagnosis function

A. Self-diagnosis function with initial power on

1) If the power is supplied to refrigerator at first, all displays are on and self-diagnosis function is
carried out.

2) If there is no defect on MICOM, display returns to the initial normal mode(“Med”–“HIGH
humidity”–“Alarm”).

3) If there is defect, the televant display lights off with the sound of the beep.

4) Self-diagnosis error indicator might disappear when defect is repaired or self-diagnosis function
is released.

5) If defect is repaired, display returns to normal mode.

6) Self-diagnosis function is canceled when “power freezing” button and “power refrigeration”
button are pressed for 5 seconds at the same time. Display returns to normal mode.

B. Self-diagnosis function during normal operation

1) Press “power freezing” button and “power refrigeration” button for 5 seconds at the same time
during normal operation.

2) The temperature LEDs of freezer and refrigerator repeats 1 second on/off 3 times.

3) If any button is not pressed until the temperature LED repeats on/off 3 times, self-diagnosis
function is carried out. If there is no defect, it returns to normal mode.

4) If there is defect, the corresponding display will light up and buzzer will beep.

5) Self-diagnosis error indicator works for 30 seconds and returns to normal mode regardless of
defect correction.

6) Key input is not available during self-diagnosis function.

7) When there is defect, the corresponding display is shown as initial power on.

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No

Item

Display LED

Symptom

Remark

1

R1-Sensor

2

R2-Sensor

3

RD-Sensor

4

Air-Sensor

5

F-Sensor

Refrigerator “LOW”

Refrigerator
“LOW · Med”

Refrigerator “Med”

Freezer “LOW”

Freezer “ L O W” · Med”

• R-room left sensor housing
disconnection.

• Faulty connection.

• Wire open or short.

• Faulty sensor.

• R-room left right sensor
housing disconnection.

• Faulty connection.

• Wire open or short.

• Faulty sensor.

• R-room defrost sensor
housing disconnection.

• Faulty connection.

• Wire open or short.

• Faulty sensor.

• Outer sensor housing
disconnection.

• Faulty connection.

• Wire open or short.

• Faulty sensor.

• F-room sensor housing
disconnection.

• Faulty connection

• Wire open or short.

• Faulty sensor.

R1-Sensor temperature is
over +50˚C or below –50˚C.

R2-Sensor temperature is
over +50˚C or below –50˚C.

RD-Sensor temperature is
over +50˚C or below –50˚C.

Outer-Sensor temperature
is over +50˚C or below
–50˚C.

F-Sensor temperature is
over +50˚C or below –50˚C.

6

FD-Sensor

7

Geared­Motor

Freezer “Med”

Refrigerator “HIGH”

(Self-diagnosis Display Table)

• R-room defrost sensor
housing disconnection.

• Faulty connection.

• Wire open or short.

• Faulty sensor.

• Faulty geared-motor

• Faulty reed-switch

housing disconnection.

• Faulty connection.

F-Sensor temperature is
over +50˚C or below –50˚C.

Square wave not detected
by reed-S/W.

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C. Load status display

1) When “power freezing” button and “power refrigeration” button are pressed for 5 seconds
during normal operation, it is activated by the refrigeration button while temperature setting
display repeats on/off 3 times.

2) Load which output of micom is displayed on LED.

3) Load status display maintains for 60 seconds and returns to normal operation.

No

Freezer Subordinate

1

COMP

2

F-FAN

3

Freezer defrost Heater

4

Freezer bulb

Refrigerator Subordinate

R-FAN

5

Refrigerator defrost

6

Heater

Refrigerator bulb

7

8

GEARED-Motor

Item

Display LED

Freezer “LOW”

Freezer “LOW · Med ”

Freezer “Med”

Freezer “Med ·H I G H”

Refrigerator
“LOW · Med”

Refrigerator “Med”

Refrigerator
“Med · HIGH”

Refrigerator “HIGH”

Display

Relevant LED ON during comp
operation

Relevant LED ON during F-FAN
operation

Relevant LED ON during freezer
defrost heater on

Relevant LED ON during freezer
bulb ON

Relevant LED ON during F-FAN
operation

Relevant LED ON during
refrigerator defrost

Relevant LED ON during
refrigerator bulb ON

Relevant LED ON during
refrigerator brade rotation

Mode Display

Initial Mode

9

10

Overload

Low temp.

11

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Quick Freezing

Quick Refrigeration

High humidity
refrigeration

(Load Status Display Table)

Relevant LED ON with initial
power input

Relevant LED ON when ambient
temperature is over 35˚C

Relevant LED On when ambient
temperature is below 20˚C

6. Option function

1) Freezer Temperature Shift (Unit ˚C)

SHIFT

Reference

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-3.5

14

0

0

0

0

0

0

0

0

1) Method :

13

12

0

0

0

0

0

1

0

1

1

0

1

0

1

1

1

1

11

0

1

0

1

0

1

0

1

SHIFT

+0.5

+1.0

+1.5

+2.0

+2.5

+3.0

+3.5

+4.0

• The temperature of the freezer and refrigerator can be compensated from +4.0 to –3.5˚C.

14

13

12

11

1

0

0

0

1

0

0

1

1

0

1

0

1

0

1

1

1

1

0

0

1

1

0

1

1

1

1

0

1

1

1

1

• Reference : Freezer (–17.5˚C)
Refrigerator(+3.0˚C)

2) Refrigerator Temperature Shift (Unit ˚C)

SHIFT

Reference

18

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-3.5

17

16

0

0

0

0

0

0

0

0

1

0

0

1

0

1

0

0

1

0

0

1

1

0

1

1

15

0

1

0

1

0

1

0

1

SHIFT

+0.5

+1.0

+1.5

+2.0

+2.5

+3.0

+3.5

+4.0

18

17

16

15

1

0

0

0

1

0

0

1

1

0

1

0

1

0

1

1

1

1

0

0

1

1

0

1

1

1

1

0

1

1

1

1

As above table • Shift No 1, 2, 3, 4 are designed to compensate freezer temperature

(PCB D601, D602, D603, D604)

As above table • Shift No 5, 6, 7, 8 are designed to compensate refrigerator temperature

(PCB D605, D606, d607, D608)

As above table • “0” means non-diode (IN4148)

“1” means diode

❋ Temperature is compensated with power input after diode connects to the option table.

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