Samsung DMR78AHS/XAC Service Manual page 33

Part
Case Sensor
Photo
3. Disassembly and Reassembly
Description
6. Separate the case sensor assy into the case sensor
and the cover sensor assy.
Be careful to avoid breaking them, because they are
connected with a hook.
7. Remove the pole sensor from the cover sensor assy.
8. Remove the micro switch which is fixed by a hook of
the cover sensor assy.
Disconnect the micro switch connector.
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