meaning of the letters

[Sumanth babu]

the meaning of the letters"G,V,C,D" which are encrypted on the circuit board of "custom circuit design layout ".

 

[Harald Kapp]

Could be anything. Show us a good photo and point to the letters in question.

 

[Sumanth babu]

Could be anything. Show us a good photo and point to the letters in question.

 

[Harald Kapp]

Nice photo, thanks.
This could be anything. Lettering of this kind is afaik not standardized. You'll have to follow the traces or the wires to find out where they lead and possibly be able to assign a meaning.

Just a guess:
C = clock
D = data
G = ground
V = voltage (supply)

But truly anything else is possible.