Test Function - Samsung SR-S26NTA Service Manual

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7-6. TEST function

TEST function is for quality control of PCB and the product, in-process control, and SVC.
After check of the function of the product by the selection of TEST S/W, POWER should be turned ON
again to perform self-diagnostic function.
1. Forced-Operation function
1) If you select button on MAIN PCB one time, COMP operates immediately without 5-minute DELAY.
So, attention should be paid because if you perform Forced-operation at the COMP-OFF time, OVER LOAD
may occur.
2) On the selection of Forced-operation, ÒCOLDERÓ for the freezer and ÒCOLDER-MEDIUMÓ for the
refrigerator are selected automatically, COMP and F-Fan are operated on continuous basis, and R-FAN
in the refrigerator is controlled by ÒO(MEDIUM-COLDER)Ó setting.
3) Forced-operation is effective only for 24 hours. It means that, 24 hours after the start of Forced-operation,
concurrent defrost in freezer and refrigerator is conducted automatically and normal operation
starts according to the setting for freezer and refrigerator.
4) To cancel Forced-operation, turn ON again after POWER OFF (RESET) or select TEST CANCELLATION
MODE as described in the below Ò3Ó.
5) On Forced-operation, alarm (0.5 seconds ON/0.5 seconds OFF) continues to the finish of Forced-operation.
There is no cancellation way.
2. Forced-defrost function
1) If you push TEST button one more in Forced-operation state, Forced-operation is immediately canceled and
defrost function operates in refrigerator.
2) At this time, BEEP alarm will sound for 3 seconds at the start and continues on 0.75 seconds ON/0.25
seconds OFF basis during R Forced-defrost operation.
3) If you allow the above R-defrost function to operate, normal operation will start after the finish of the
defrost.
4) If you push TEST button one more in R Forced-defrost operation, concurrent defrost for R and F-room
operates.
5) Also, BEEP alarm will sound for 3 seconds at the start of concurrent R and F-defrost and continues on 0.25
seconds ON/0.75 seconds OFF basis by the finish of concurrent R and F-defrost.
3. Test Cancellation Mode
1) If you push TEST button one more in concurrent R and F-defrost, concurrent defrost will stop and normal
operation will start.
Notice
TEST function will operate STEP BY STEP and so, it is not possible to change from 1 STEP (Forced-
operation) to 4 STEP (TEST CANCELLATION MODE). You should go through all STEP to perform the
desired function. It is preferred to POWER ON after OFF on operation of TEST function.