Check out the stuff in repairing/tuning and doing other stuff to ur ibanez axe... https://www.ibanezrules.com/tech/setup/index.htm
got myself an Ibanez GRG170DX in the US for $230 online.. no tuning problems till now.. but when i do have some, i'll refer to the site i gave above.. coz i know i'll forget that website when i need 2 tune my guitar.. so i've written it down here for "future reference".. by the way, i havent even read the contents of the website.. can anyone plz "volunteer" to tune their ibanez using the method given in the website and post comments here...?? thank u very much.. HAPPY NEW YEAR!!!