How to connect main supply in indoor PCB, AC Indoor unit pcb ka connection kaise kare. 

In this video we learned where to connect mains supply in PCB board of Split AC.
This way you can connect the mains supply to any indoor PCB.
This way you can identify the relay main supply terminal and CP terminal of the split air conditioner indoor unit.
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Main Supply connect in IDU PCB Board
How to check Relay Input & Output Terminal
How to check Relay
Where is connect Main Supply in IDU PCB Board
How to find CP terminal
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