Mamiya 645AFDIII click sound

Hello all,
I have just bought MAMIYA 645 AFDIII with MAMIYA SEKOR AF 80mm F2.8 D. I'm waiting on my digital back.
I would like to ask if is normal behavior that I hear click sound when I press any button while camera is in off "L" status. I think it goes from the lens. Exactly the same sound I hear when I turn on or turn off camera, but I'm not sure with this off "L" status.
Thank you for answer.
I have just bought MAMIYA 645 AFDIII with MAMIYA SEKOR AF 80mm F2.8 D. I'm waiting on my digital back.
I would like to ask if is normal behavior that I hear click sound when I press any button while camera is in off "L" status. I think it goes from the lens. Exactly the same sound I hear when I turn on or turn off camera, but I'm not sure with this off "L" status.
Thank you for answer.