Renovate equipment used to broadcast sermon? (6)
I believe the answer is:
revamp
'renovate' is the definition.
(I've seen this in another clue)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for revamp that I've seen before include "Refurbish" , "New and improved version" , "Give makeover to" , "Give new form to" , "Give new appearance to" .)