LG AS740 - Manual (Page 101)

100 Accounts
To remove an account
You can remove an account to delete all information associated with it
from your phone, including email, contacts, settings, and so on.
You can’t remove some accounts, such the first Google Account you set
up on the phone. That account can only be removed by resetting your
phone entirely.
1 From the Home screen, press the Menu Key , touch Settings,
and touch Accounts & sync.
The Accounts & sync settings screen displays your current sync
settings and accounts.
For more information, see “Configuring Account Sync and Display
Options” on page 101.
2 Touch the account you want to delete.
3 Touch the Remove account button.
4 Touch the Remove account button again to confirm that you want to
remove the account.