LG PFT1500 zerlegen

In einem englischsprachigen Forum habe ich folgende Hinweise zum Zerlegen gefunden:

1. remove the bottom cover (ceiling bracket side) by removing the 4 screws
2. disconnect the power supply cable from the power socket circuit board to completely remove the lid
3. remove the 4 screws from the top cover (button side) -> they are hidden deep down
4. remove the silver ring and the second ring from the lens (there are plastic tabs that you have to bend away)
5. lift the complete inner unit out of the housing by slightly bending the white housing left and right
6. remove the cable from the housing sensor to the mainboard, to be able to put the housing aside completely
7. remove some of the adhesive tapes from the metal cover plate to lift this metal cover plate (ceiling bracket screw connection) off the get to the mainboard
8. use a watchmaker's loupe when soldering the fan contacts

Wobei mir das Entfernen des Objektivs damit noch immer nicht ganz klar ist...