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Samsung Electronics
6) Lamp Inspection
1. When replacing Sub-PCB, power should be turned off, because Sub-PCB receives AC POWER
INPUT and converts that to 1.5
X
AC POWER INPUT.
2. It is impossible to check lamp with normal voltage tester, because lamp voltage is high.
Note
1. If new lamp does not turn on, that’s because the protector is activated to prevent peak
voltage when lamp is replaced.
After replacing lamp, wait for 30 seconds after closing the door of refrigerator.
2. Lamp turns off automatically if the door of refrigerator is open for 10sec
If door is closed and opened by the door S/W, lamp turns on again.
If that carries out over twice, protector is activated and lamp maintains off.
3. If there is water in door S/W, lamp close not turn or off because Micom can not receive door
open/close signal. Door S/W should be checked.
4. The connection between Main-PCB and Sub-PCB, Sub-PCB output and cabinet L/W,
cabinet L/W and lamp are done by connector. If there is table with lamp check connector
and lamp.
5. Freezer lamp is controlled by main PCB.
References
