If you are using a DenizBank card in the ATM the on screen prompts are in Turkish. Here is a translation for the common ones I use myself. They are not necessarily literal word for word translations by the way. I assume the prompts will be similar for other Turkish bank ATMs.
Keyboard buttons:
İptal = cancel/stop
Düzeltme = cancel last key entry (e.g. if you enter an incorrect PIN)
Yardım = help
GiriÅŸ = enter
On screen prompts:
Lütfen şifrenizi giriniz = please enter your PIN
Ana menu = main menu
Para çekme = dispense cash
DiÄŸer tutar = other amount (if you want an amount other than standard options)
Bilgi fiÅŸi = option after taking cash to print details of the withdrawal
Bakiye sorgulama/Hesap hareketleri = account information
Bakiye görüntüleme = look at your account balance/details on screen
Hesap hareketleri = recent account transactions on screen
Bilgi fiÅŸi istiyorum = print account balance/transaction details
Karte iade = return card
Obviously, if you are using a UK bank card then you can select the option to have screen prompts in English.
John