Samsung AC Series Install Manual page 21

2. preparation of Cabinet installation
◆ Pre-prepare before installation
⑦ Remove some of the HOLDER-PCB materials assembled in the cabinet.
※ Be careful because the location of the HOLDER-PCB that must be removed is different for each cabinet number!
Check cabinet number
- Remove the red area in the figure below.
L1
L2 R1 R2
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LED R&D Lab(VD)