Thanks.
I did some more testing and this is what i got.
Q1 lights up REC
Q2 lights up Q1
Q3 lights up MODE
Q4 lights up WINDOW
BANK A lights up BANK B
Bank C lights up BAnk D
Bank D lights up BANK A
Basically a light button will light another light button.
From the repetitiveness, i assume its normal. Thanks for the reply .