Caution: be careful, as these are very fragile connectors!
2. Remove fixation screws [1] and connector [2] from the IR board control unit.
3. Press the snap that marked by blue box below backward then take out the IR board.
When defective, replace the whole unit.
1
3.2.4 Small Signal Board (SSB)
Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the SSB.