The Rest Control Functions; Function Of Self Diagnosis; Function Of Notch Compensation - Samsung SRL3928B(A) Service Manual

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7-7. The rest control functions

A. Function of COMP protection
1)
After COMP is turned off, 5 minutes must be elapsed for the another operation under all conditions.
2)
For the forced operation, compressor will begin to work immediately by pushing the forced operating
function without any delay for 5 minutes.
3)
At the initial moment of POWER ON or POWER S/W ON, this function begins to work immediately
after heating of defrosting for 3 seconds.
B. Function of supercooling protection of refrigerator with a surrounding air of low temperature.
1)
If the temperature of surrounding air begins to drop below 13 , the hysteresis of freezer sensor will
alter
3.0
into
2)
If the temperature of surrounding air will be between 14
will be back to
3)
If the temperature of surrounding air begins to rise above 33 , the hysteresis of freezer sensor will
alter
3.0
into
C. Function of NOTCH compensation
1)
The NOTCH of refrigerator temperature will be -1
and refrigerator are ranged from -17
2)
The NOTCH of refrigerator temperature will be +2
and refrigerator are ranged from -25
3)
The NOTCH of refrigerator temperature will be set to be normal condition when the NOTCH setting
of freezer is ranged from -20

7-8. Function of Self diagnosis

A. Function of self diagnosis
1)
The criterion of disorder of temperature sensor is out of temperature range from -50
treated as SHORT/OPEN if the MICOM input voltage is out of voltage range from 0.5 VOLT to 4.5
VOLT.
The disorder table prepared by self-diagnosis
NO
Items
1
R-SENSOR
F-EVAP
2
SENSOR
3
F-SENSOR
DAMPER-MOTOR
4
(GEARED)
B. Function of initial self diagnosis by POWER ON
1) After POWER ON, inside of MICOM automatically detects the existence of the disorder of
temperature sensor within one second.
2)
If bad sensor is found out by self diagnosis, it will be displayed rotatory on the 7 Segment at 0.5
second interval.
3)
If bad sensor is detected, any button will not be recognized and all electrical load will be set to be OFF
and normal control of temperature will be reserved.
4)
If bad part is repaired, it will be restored to the original state.
17
1.5
and the temperature of refrigerator will be controlled with -1
3.0
and the refrigerator will be controlled with REF. TEMP. setting temperature.
1.5 .
to -22 .
Segments display
CONTROL RELAY of DAMPER-
MOTOR disorder or MOTOR,
REED S/W, MAGNET disorder
and 31 , the hysteresis of freezer sensor
shifted when the NOTCH setting of freezer
to -19
and 1
to 2 , respectively.
shifted when the NOTCH setting of freezer
to -23
and 5
to 6 , respectively.
Contents of disorder
OPEN disorder
SHORT disorder
shifted.
to +50 . It is
Note
if sensing below -50
if sensing above +50
cannot sensing
ON/OFF of REED
S/W for more than
1 minute operation
Samsung Electronics

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