Test equipment schematic for detect remote control 

using BC109C, LM7805

C1 100u 10V
C2 100n
R1 10k
R2 1k
R3 33R 1W
R4 3k3
Q1 BC109C
IC1 LM7805

Test equipment schematic for detect remote control BC109C, LM7805, 4049

Test equipment schematic for detect remote control BC109C, LM7805, 4049

if your remote control was broken, of course, require a tool to ensure 100% broken, this is the tool used to test if the remote is damaged