Test Function; Function Of Initial Power On; Power Failure Compensating Function; Function Of Forced Running - Samsung SR-L677EV Service Manual

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.
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